Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

769 files changed, 89109 insertions, 0 deletions

diff --git a/models/actions/artifact.go b/models/actions/artifact.go
new file mode 100644
index 0000000..0bc66ba
--- /dev/null
+++ b/models/actions/artifact.go
@@ -0,0 +1,183 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+// This artifact server is inspired by https://github.com/nektos/act/blob/master/pkg/artifacts/server.go.
+// It updates url setting and uses ObjectStore to handle artifacts persistence.
+
+package actions
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ArtifactStatus is the status of an artifact, uploading, expired or need-delete
+type ArtifactStatus int64
+
+const (
+	ArtifactStatusUploadPending   ArtifactStatus = iota + 1 // 1， ArtifactStatusUploadPending is the status of an artifact upload that is pending
+	ArtifactStatusUploadConfirmed                           // 2， ArtifactStatusUploadConfirmed is the status of an artifact upload that is confirmed
+	ArtifactStatusUploadError                               // 3， ArtifactStatusUploadError is the status of an artifact upload that is errored
+	ArtifactStatusExpired                                   // 4, ArtifactStatusExpired is the status of an artifact that is expired
+	ArtifactStatusPendingDeletion                           // 5, ArtifactStatusPendingDeletion is the status of an artifact that is pending deletion
+	ArtifactStatusDeleted                                   // 6, ArtifactStatusDeleted is the status of an artifact that is deleted
+)
+
+func init() {
+	db.RegisterModel(new(ActionArtifact))
+}
+
+// ActionArtifact is a file that is stored in the artifact storage.
+type ActionArtifact struct {
+	ID                 int64 `xorm:"pk autoincr"`
+	RunID              int64 `xorm:"index unique(runid_name_path)"` // The run id of the artifact
+	RunnerID           int64
+	RepoID             int64 `xorm:"index"`
+	OwnerID            int64
+	CommitSHA          string
+	StoragePath        string             // The path to the artifact in the storage
+	FileSize           int64              // The size of the artifact in bytes
+	FileCompressedSize int64              // The size of the artifact in bytes after gzip compression
+	ContentEncoding    string             // The content encoding of the artifact
+	ArtifactPath       string             `xorm:"index unique(runid_name_path)"` // The path to the artifact when runner uploads it
+	ArtifactName       string             `xorm:"index unique(runid_name_path)"` // The name of the artifact when runner uploads it
+	Status             int64              `xorm:"index"`                         // The status of the artifact, uploading, expired or need-delete
+	CreatedUnix        timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix        timeutil.TimeStamp `xorm:"updated index"`
+	ExpiredUnix        timeutil.TimeStamp `xorm:"index"` // The time when the artifact will be expired
+}
+
+func CreateArtifact(ctx context.Context, t *ActionTask, artifactName, artifactPath string, expiredDays int64) (*ActionArtifact, error) {
+	if err := t.LoadJob(ctx); err != nil {
+		return nil, err
+	}
+	artifact, err := getArtifactByNameAndPath(ctx, t.Job.RunID, artifactName, artifactPath)
+	if errors.Is(err, util.ErrNotExist) {
+		artifact := &ActionArtifact{
+			ArtifactName: artifactName,
+			ArtifactPath: artifactPath,
+			RunID:        t.Job.RunID,
+			RunnerID:     t.RunnerID,
+			RepoID:       t.RepoID,
+			OwnerID:      t.OwnerID,
+			CommitSHA:    t.CommitSHA,
+			Status:       int64(ArtifactStatusUploadPending),
+			ExpiredUnix:  timeutil.TimeStamp(time.Now().Unix() + timeutil.Day*expiredDays),
+		}
+		if _, err := db.GetEngine(ctx).Insert(artifact); err != nil {
+			return nil, err
+		}
+		return artifact, nil
+	} else if err != nil {
+		return nil, err
+	}
+
+	if _, err := db.GetEngine(ctx).ID(artifact.ID).Cols("expired_unix").Update(&ActionArtifact{
+		ExpiredUnix: timeutil.TimeStamp(time.Now().Unix() + timeutil.Day*expiredDays),
+	}); err != nil {
+		return nil, err
+	}
+
+	return artifact, nil
+}
+
+func getArtifactByNameAndPath(ctx context.Context, runID int64, name, fpath string) (*ActionArtifact, error) {
+	var art ActionArtifact
+	has, err := db.GetEngine(ctx).Where("run_id = ? AND artifact_name = ? AND artifact_path = ?", runID, name, fpath).Get(&art)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, util.ErrNotExist
+	}
+	return &art, nil
+}
+
+// UpdateArtifactByID updates an artifact by id
+func UpdateArtifactByID(ctx context.Context, id int64, art *ActionArtifact) error {
+	art.ID = id
+	_, err := db.GetEngine(ctx).ID(id).AllCols().Update(art)
+	return err
+}
+
+type FindArtifactsOptions struct {
+	db.ListOptions
+	RepoID       int64
+	RunID        int64
+	ArtifactName string
+	Status       int
+}
+
+func (opts FindArtifactsOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.RunID > 0 {
+		cond = cond.And(builder.Eq{"run_id": opts.RunID})
+	}
+	if opts.ArtifactName != "" {
+		cond = cond.And(builder.Eq{"artifact_name": opts.ArtifactName})
+	}
+	if opts.Status > 0 {
+		cond = cond.And(builder.Eq{"status": opts.Status})
+	}
+
+	return cond
+}
+
+// ActionArtifactMeta is the meta data of an artifact
+type ActionArtifactMeta struct {
+	ArtifactName string
+	FileSize     int64
+	Status       ArtifactStatus
+}
+
+// ListUploadedArtifactsMeta returns all uploaded artifacts meta of a run
+func ListUploadedArtifactsMeta(ctx context.Context, runID int64) ([]*ActionArtifactMeta, error) {
+	arts := make([]*ActionArtifactMeta, 0, 10)
+	return arts, db.GetEngine(ctx).Table("action_artifact").
+		Where("run_id=? AND (status=? OR status=?)", runID, ArtifactStatusUploadConfirmed, ArtifactStatusExpired).
+		GroupBy("artifact_name").
+		Select("artifact_name, sum(file_size) as file_size, max(status) as status").
+		Find(&arts)
+}
+
+// ListNeedExpiredArtifacts returns all need expired artifacts but not deleted
+func ListNeedExpiredArtifacts(ctx context.Context) ([]*ActionArtifact, error) {
+	arts := make([]*ActionArtifact, 0, 10)
+	return arts, db.GetEngine(ctx).
+		Where("expired_unix < ? AND status = ?", timeutil.TimeStamp(time.Now().Unix()), ArtifactStatusUploadConfirmed).Find(&arts)
+}
+
+// ListPendingDeleteArtifacts returns all artifacts in pending-delete status.
+// limit is the max number of artifacts to return.
+func ListPendingDeleteArtifacts(ctx context.Context, limit int) ([]*ActionArtifact, error) {
+	arts := make([]*ActionArtifact, 0, limit)
+	return arts, db.GetEngine(ctx).
+		Where("status = ?", ArtifactStatusPendingDeletion).Limit(limit).Find(&arts)
+}
+
+// SetArtifactExpired sets an artifact to expired
+func SetArtifactExpired(ctx context.Context, artifactID int64) error {
+	_, err := db.GetEngine(ctx).Where("id=? AND status = ?", artifactID, ArtifactStatusUploadConfirmed).Cols("status").Update(&ActionArtifact{Status: int64(ArtifactStatusExpired)})
+	return err
+}
+
+// SetArtifactNeedDelete sets an artifact to need-delete, cron job will delete it
+func SetArtifactNeedDelete(ctx context.Context, runID int64, name string) error {
+	_, err := db.GetEngine(ctx).Where("run_id=? AND artifact_name=? AND status = ?", runID, name, ArtifactStatusUploadConfirmed).Cols("status").Update(&ActionArtifact{Status: int64(ArtifactStatusPendingDeletion)})
+	return err
+}
+
+// SetArtifactDeleted sets an artifact to deleted
+func SetArtifactDeleted(ctx context.Context, artifactID int64) error {
+	_, err := db.GetEngine(ctx).ID(artifactID).Cols("status").Update(&ActionArtifact{Status: int64(ArtifactStatusDeleted)})
+	return err
+}
diff --git a/models/actions/forgejo.go b/models/actions/forgejo.go
new file mode 100644
index 0000000..5ea77f4
--- /dev/null
+++ b/models/actions/forgejo.go
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"crypto/subtle"
+	"fmt"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+
+	gouuid "github.com/google/uuid"
+)
+
+func RegisterRunner(ctx context.Context, ownerID, repoID int64, token string, labels *[]string, name, version string) (*ActionRunner, error) {
+	uuid, err := gouuid.FromBytes([]byte(token[:16]))
+	if err != nil {
+		return nil, fmt.Errorf("gouuid.FromBytes %v", err)
+	}
+	uuidString := uuid.String()
+
+	var runner ActionRunner
+
+	has, err := db.GetEngine(ctx).Where("uuid=?", uuidString).Get(&runner)
+	if err != nil {
+		return nil, fmt.Errorf("GetRunner %v", err)
+	}
+
+	var mustUpdateSecret bool
+	if has {
+		//
+		// The runner exists, check if the rest of the token has changed.
+		//
+		mustUpdateSecret = subtle.ConstantTimeCompare(
+			[]byte(runner.TokenHash),
+			[]byte(auth_model.HashToken(token, runner.TokenSalt)),
+		) != 1
+	} else {
+		//
+		// The runner does not exist yet, create it
+		//
+		runner = ActionRunner{
+			UUID:        uuidString,
+			AgentLabels: []string{},
+		}
+
+		if err := runner.UpdateSecret(token); err != nil {
+			return &runner, fmt.Errorf("can't set new runner's secret: %w", err)
+		}
+
+		if err := CreateRunner(ctx, &runner); err != nil {
+			return &runner, fmt.Errorf("can't create new runner %w", err)
+		}
+	}
+
+	//
+	// Update the existing runner
+	//
+	name, _ = util.SplitStringAtByteN(name, 255)
+
+	cols := []string{"name", "owner_id", "repo_id", "version"}
+	runner.Name = name
+	runner.OwnerID = ownerID
+	runner.RepoID = repoID
+	runner.Version = version
+	if labels != nil {
+		runner.AgentLabels = *labels
+		cols = append(cols, "agent_labels")
+	}
+	if mustUpdateSecret {
+		if err := runner.UpdateSecret(token); err != nil {
+			return &runner, fmt.Errorf("can't change runner's secret: %w", err)
+		}
+		cols = append(cols, "token_hash", "token_salt")
+	}
+
+	if err := UpdateRunner(ctx, &runner, cols...); err != nil {
+		return &runner, fmt.Errorf("can't update the runner %+v %w", runner, err)
+	}
+
+	return &runner, nil
+}
diff --git a/models/actions/forgejo_test.go b/models/actions/forgejo_test.go
new file mode 100644
index 0000000..9295fc6
--- /dev/null
+++ b/models/actions/forgejo_test.go
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"crypto/subtle"
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestActions_RegisterRunner_Token(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ownerID := int64(0)
+	repoID := int64(0)
+	token := "0123456789012345678901234567890123456789"
+	labels := []string{}
+	name := "runner"
+	version := "v1.2.3"
+	runner, err := RegisterRunner(db.DefaultContext, ownerID, repoID, token, &labels, name, version)
+	require.NoError(t, err)
+	assert.EqualValues(t, name, runner.Name)
+
+	assert.EqualValues(t, 1, subtle.ConstantTimeCompare([]byte(runner.TokenHash), []byte(auth_model.HashToken(token, runner.TokenSalt))), "the token cannot be verified with the same method as routers/api/actions/runner/interceptor.go as of 8228751c55d6a4263f0fec2932ca16181c09c97d")
+}
+
+// TestActions_RegisterRunner_TokenUpdate tests that a token's secret is updated
+// when a runner already exists and RegisterRunner is called with a token
+// parameter whose first 16 bytes match that record but where the last 24 bytes
+// do not match.
+func TestActions_RegisterRunner_TokenUpdate(t *testing.T) {
+	const recordID = 12345678
+	oldToken := "7e577e577e577e57feedfacefeedfacefeedface"
+	newToken := "7e577e577e577e57deadbeefdeadbeefdeadbeef"
+	require.NoError(t, unittest.PrepareTestDatabase())
+	before := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+	require.Equal(t,
+		before.TokenHash, auth_model.HashToken(oldToken, before.TokenSalt),
+		"the initial token should match the runner's secret",
+	)
+
+	RegisterRunner(db.DefaultContext, before.OwnerID, before.RepoID, newToken, nil, before.Name, before.Version)
+
+	after := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+
+	assert.Equal(t, before.UUID, after.UUID)
+	assert.NotEqual(t,
+		after.TokenHash, auth_model.HashToken(oldToken, after.TokenSalt),
+		"the old token can still be verified",
+	)
+	assert.Equal(t,
+		after.TokenHash, auth_model.HashToken(newToken, after.TokenSalt),
+		"the new token cannot be verified",
+	)
+}
+
+func TestActions_RegisterRunner_CreateWithLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ownerID := int64(0)
+	repoID := int64(0)
+	token := "0123456789012345678901234567890123456789"
+	name := "runner"
+	version := "v1.2.3"
+	labels := []string{"woop", "doop"}
+	labelsCopy := labels // labels may be affected by the tested function so we copy them
+
+	runner, err := RegisterRunner(db.DefaultContext, ownerID, repoID, token, &labels, name, version)
+	require.NoError(t, err)
+
+	// Check that the returned record has been updated, except for the labels
+	assert.EqualValues(t, ownerID, runner.OwnerID)
+	assert.EqualValues(t, repoID, runner.RepoID)
+	assert.EqualValues(t, name, runner.Name)
+	assert.EqualValues(t, version, runner.Version)
+	assert.EqualValues(t, labelsCopy, runner.AgentLabels)
+
+	// Check that whatever is in the DB has been updated, except for the labels
+	after := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: runner.ID})
+	assert.EqualValues(t, ownerID, after.OwnerID)
+	assert.EqualValues(t, repoID, after.RepoID)
+	assert.EqualValues(t, name, after.Name)
+	assert.EqualValues(t, version, after.Version)
+	assert.EqualValues(t, labelsCopy, after.AgentLabels)
+}
+
+func TestActions_RegisterRunner_CreateWithoutLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ownerID := int64(0)
+	repoID := int64(0)
+	token := "0123456789012345678901234567890123456789"
+	name := "runner"
+	version := "v1.2.3"
+
+	runner, err := RegisterRunner(db.DefaultContext, ownerID, repoID, token, nil, name, version)
+	require.NoError(t, err)
+
+	// Check that the returned record has been updated, except for the labels
+	assert.EqualValues(t, ownerID, runner.OwnerID)
+	assert.EqualValues(t, repoID, runner.RepoID)
+	assert.EqualValues(t, name, runner.Name)
+	assert.EqualValues(t, version, runner.Version)
+	assert.EqualValues(t, []string{}, runner.AgentLabels)
+
+	// Check that whatever is in the DB has been updated, except for the labels
+	after := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: runner.ID})
+	assert.EqualValues(t, ownerID, after.OwnerID)
+	assert.EqualValues(t, repoID, after.RepoID)
+	assert.EqualValues(t, name, after.Name)
+	assert.EqualValues(t, version, after.Version)
+	assert.EqualValues(t, []string{}, after.AgentLabels)
+}
+
+func TestActions_RegisterRunner_UpdateWithLabels(t *testing.T) {
+	const recordID = 12345678
+	token := "7e577e577e577e57feedfacefeedfacefeedface"
+	require.NoError(t, unittest.PrepareTestDatabase())
+	unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+
+	newOwnerID := int64(1)
+	newRepoID := int64(1)
+	newName := "rennur"
+	newVersion := "v4.5.6"
+	newLabels := []string{"warp", "darp"}
+	labelsCopy := newLabels // labels may be affected by the tested function so we copy them
+
+	runner, err := RegisterRunner(db.DefaultContext, newOwnerID, newRepoID, token, &newLabels, newName, newVersion)
+	require.NoError(t, err)
+
+	// Check that the returned record has been updated
+	assert.EqualValues(t, newOwnerID, runner.OwnerID)
+	assert.EqualValues(t, newRepoID, runner.RepoID)
+	assert.EqualValues(t, newName, runner.Name)
+	assert.EqualValues(t, newVersion, runner.Version)
+	assert.EqualValues(t, labelsCopy, runner.AgentLabels)
+
+	// Check that whatever is in the DB has been updated
+	after := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+	assert.EqualValues(t, newOwnerID, after.OwnerID)
+	assert.EqualValues(t, newRepoID, after.RepoID)
+	assert.EqualValues(t, newName, after.Name)
+	assert.EqualValues(t, newVersion, after.Version)
+	assert.EqualValues(t, labelsCopy, after.AgentLabels)
+}
+
+func TestActions_RegisterRunner_UpdateWithoutLabels(t *testing.T) {
+	const recordID = 12345678
+	token := "7e577e577e577e57feedfacefeedfacefeedface"
+	require.NoError(t, unittest.PrepareTestDatabase())
+	before := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+
+	newOwnerID := int64(1)
+	newRepoID := int64(1)
+	newName := "rennur"
+	newVersion := "v4.5.6"
+
+	runner, err := RegisterRunner(db.DefaultContext, newOwnerID, newRepoID, token, nil, newName, newVersion)
+	require.NoError(t, err)
+
+	// Check that the returned record has been updated, except for the labels
+	assert.EqualValues(t, newOwnerID, runner.OwnerID)
+	assert.EqualValues(t, newRepoID, runner.RepoID)
+	assert.EqualValues(t, newName, runner.Name)
+	assert.EqualValues(t, newVersion, runner.Version)
+	assert.EqualValues(t, before.AgentLabels, runner.AgentLabels)
+
+	// Check that whatever is in the DB has been updated, except for the labels
+	after := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+	assert.EqualValues(t, newOwnerID, after.OwnerID)
+	assert.EqualValues(t, newRepoID, after.RepoID)
+	assert.EqualValues(t, newName, after.Name)
+	assert.EqualValues(t, newVersion, after.Version)
+	assert.EqualValues(t, before.AgentLabels, after.AgentLabels)
+}
diff --git a/models/actions/main_test.go b/models/actions/main_test.go
new file mode 100644
index 0000000..3cfb395
--- /dev/null
+++ b/models/actions/main_test.go
@@ -0,0 +1,19 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{
+			"action_runner.yml",
+			"action_runner_token.yml",
+		},
+	})
+}
diff --git a/models/actions/run.go b/models/actions/run.go
new file mode 100644
index 0000000..f637634
--- /dev/null
+++ b/models/actions/run.go
@@ -0,0 +1,425 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/json"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"github.com/nektos/act/pkg/jobparser"
+	"xorm.io/builder"
+)
+
+// ActionRun represents a run of a workflow file
+type ActionRun struct {
+	ID                int64
+	Title             string
+	RepoID            int64                  `xorm:"index unique(repo_index)"`
+	Repo              *repo_model.Repository `xorm:"-"`
+	OwnerID           int64                  `xorm:"index"`
+	WorkflowID        string                 `xorm:"index"`                    // the name of workflow file
+	Index             int64                  `xorm:"index unique(repo_index)"` // a unique number for each run of a repository
+	TriggerUserID     int64                  `xorm:"index"`
+	TriggerUser       *user_model.User       `xorm:"-"`
+	ScheduleID        int64
+	Ref               string `xorm:"index"` // the commit/tag/… that caused the run
+	CommitSHA         string
+	IsForkPullRequest bool                         // If this is triggered by a PR from a forked repository or an untrusted user, we need to check if it is approved and limit permissions when running the workflow.
+	NeedApproval      bool                         // may need approval if it's a fork pull request
+	ApprovedBy        int64                        `xorm:"index"` // who approved
+	Event             webhook_module.HookEventType // the webhook event that causes the workflow to run
+	EventPayload      string                       `xorm:"LONGTEXT"`
+	TriggerEvent      string                       // the trigger event defined in the `on` configuration of the triggered workflow
+	Status            Status                       `xorm:"index"`
+	Version           int                          `xorm:"version default 0"` // Status could be updated concomitantly, so an optimistic lock is needed
+	// Started and Stopped is used for recording last run time, if rerun happened, they will be reset to 0
+	Started timeutil.TimeStamp
+	Stopped timeutil.TimeStamp
+	// PreviousDuration is used for recording previous duration
+	PreviousDuration time.Duration
+	Created          timeutil.TimeStamp `xorm:"created"`
+	Updated          timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionRun))
+	db.RegisterModel(new(ActionRunIndex))
+}
+
+func (run *ActionRun) HTMLURL() string {
+	if run.Repo == nil {
+		return ""
+	}
+	return fmt.Sprintf("%s/actions/runs/%d", run.Repo.HTMLURL(), run.Index)
+}
+
+func (run *ActionRun) Link() string {
+	if run.Repo == nil {
+		return ""
+	}
+	return fmt.Sprintf("%s/actions/runs/%d", run.Repo.Link(), run.Index)
+}
+
+// RefLink return the url of run's ref
+func (run *ActionRun) RefLink() string {
+	refName := git.RefName(run.Ref)
+	if refName.IsPull() {
+		return run.Repo.Link() + "/pulls/" + refName.ShortName()
+	}
+	return git.RefURL(run.Repo.Link(), run.Ref)
+}
+
+// PrettyRef return #id for pull ref or ShortName for others
+func (run *ActionRun) PrettyRef() string {
+	refName := git.RefName(run.Ref)
+	if refName.IsPull() {
+		return "#" + strings.TrimSuffix(strings.TrimPrefix(run.Ref, git.PullPrefix), "/head")
+	}
+	return refName.ShortName()
+}
+
+// LoadAttributes load Repo TriggerUser if not loaded
+func (run *ActionRun) LoadAttributes(ctx context.Context) error {
+	if run == nil {
+		return nil
+	}
+
+	if err := run.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if err := run.Repo.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	if run.TriggerUser == nil {
+		u, err := user_model.GetPossibleUserByID(ctx, run.TriggerUserID)
+		if err != nil {
+			return err
+		}
+		run.TriggerUser = u
+	}
+
+	return nil
+}
+
+func (run *ActionRun) LoadRepo(ctx context.Context) error {
+	if run == nil || run.Repo != nil {
+		return nil
+	}
+
+	repo, err := repo_model.GetRepositoryByID(ctx, run.RepoID)
+	if err != nil {
+		return err
+	}
+	run.Repo = repo
+	return nil
+}
+
+func (run *ActionRun) Duration() time.Duration {
+	return calculateDuration(run.Started, run.Stopped, run.Status) + run.PreviousDuration
+}
+
+func (run *ActionRun) GetPushEventPayload() (*api.PushPayload, error) {
+	if run.Event == webhook_module.HookEventPush {
+		var payload api.PushPayload
+		if err := json.Unmarshal([]byte(run.EventPayload), &payload); err != nil {
+			return nil, err
+		}
+		return &payload, nil
+	}
+	return nil, fmt.Errorf("event %s is not a push event", run.Event)
+}
+
+func (run *ActionRun) GetPullRequestEventPayload() (*api.PullRequestPayload, error) {
+	if run.Event == webhook_module.HookEventPullRequest ||
+		run.Event == webhook_module.HookEventPullRequestSync ||
+		run.Event == webhook_module.HookEventPullRequestAssign ||
+		run.Event == webhook_module.HookEventPullRequestMilestone ||
+		run.Event == webhook_module.HookEventPullRequestLabel {
+		var payload api.PullRequestPayload
+		if err := json.Unmarshal([]byte(run.EventPayload), &payload); err != nil {
+			return nil, err
+		}
+		return &payload, nil
+	}
+	return nil, fmt.Errorf("event %s is not a pull request event", run.Event)
+}
+
+func updateRepoRunsNumbers(ctx context.Context, repo *repo_model.Repository) error {
+	_, err := db.GetEngine(ctx).ID(repo.ID).
+		SetExpr("num_action_runs",
+			builder.Select("count(*)").From("action_run").
+				Where(builder.Eq{"repo_id": repo.ID}),
+		).
+		SetExpr("num_closed_action_runs",
+			builder.Select("count(*)").From("action_run").
+				Where(builder.Eq{
+					"repo_id": repo.ID,
+				}.And(
+					builder.In("status",
+						StatusSuccess,
+						StatusFailure,
+						StatusCancelled,
+						StatusSkipped,
+					),
+				),
+				),
+		).
+		Update(repo)
+	return err
+}
+
+// CancelPreviousJobs cancels all previous jobs of the same repository, reference, workflow, and event.
+// It's useful when a new run is triggered, and all previous runs needn't be continued anymore.
+func CancelPreviousJobs(ctx context.Context, repoID int64, ref, workflowID string, event webhook_module.HookEventType) error {
+	// Find all runs in the specified repository, reference, and workflow with non-final status
+	runs, total, err := db.FindAndCount[ActionRun](ctx, FindRunOptions{
+		RepoID:       repoID,
+		Ref:          ref,
+		WorkflowID:   workflowID,
+		TriggerEvent: event,
+		Status:       []Status{StatusRunning, StatusWaiting, StatusBlocked},
+	})
+	if err != nil {
+		return err
+	}
+
+	// If there are no runs found, there's no need to proceed with cancellation, so return nil.
+	if total == 0 {
+		return nil
+	}
+
+	// Iterate over each found run and cancel its associated jobs.
+	for _, run := range runs {
+		// Find all jobs associated with the current run.
+		jobs, err := db.Find[ActionRunJob](ctx, FindRunJobOptions{
+			RunID: run.ID,
+		})
+		if err != nil {
+			return err
+		}
+
+		// Iterate over each job and attempt to cancel it.
+		for _, job := range jobs {
+			// Skip jobs that are already in a terminal state (completed, cancelled, etc.).
+			status := job.Status
+			if status.IsDone() {
+				continue
+			}
+
+			// If the job has no associated task (probably an error), set its status to 'Cancelled' and stop it.
+			if job.TaskID == 0 {
+				job.Status = StatusCancelled
+				job.Stopped = timeutil.TimeStampNow()
+
+				// Update the job's status and stopped time in the database.
+				n, err := UpdateRunJob(ctx, job, builder.Eq{"task_id": 0}, "status", "stopped")
+				if err != nil {
+					return err
+				}
+
+				// If the update affected 0 rows, it means the job has changed in the meantime, so we need to try again.
+				if n == 0 {
+					return fmt.Errorf("job has changed, try again")
+				}
+
+				// Continue with the next job.
+				continue
+			}
+
+			// If the job has an associated task, try to stop the task, effectively cancelling the job.
+			if err := StopTask(ctx, job.TaskID, StatusCancelled); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Return nil to indicate successful cancellation of all running and waiting jobs.
+	return nil
+}
+
+// InsertRun inserts a run
+func InsertRun(ctx context.Context, run *ActionRun, jobs []*jobparser.SingleWorkflow) error {
+	ctx, commiter, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer commiter.Close()
+
+	index, err := db.GetNextResourceIndex(ctx, "action_run_index", run.RepoID)
+	if err != nil {
+		return err
+	}
+	run.Index = index
+
+	if err := db.Insert(ctx, run); err != nil {
+		return err
+	}
+
+	if run.Repo == nil {
+		repo, err := repo_model.GetRepositoryByID(ctx, run.RepoID)
+		if err != nil {
+			return err
+		}
+		run.Repo = repo
+	}
+
+	if err := updateRepoRunsNumbers(ctx, run.Repo); err != nil {
+		return err
+	}
+
+	runJobs := make([]*ActionRunJob, 0, len(jobs))
+	var hasWaiting bool
+	for _, v := range jobs {
+		id, job := v.Job()
+		needs := job.Needs()
+		if err := v.SetJob(id, job.EraseNeeds()); err != nil {
+			return err
+		}
+		payload, _ := v.Marshal()
+		status := StatusWaiting
+		if len(needs) > 0 || run.NeedApproval {
+			status = StatusBlocked
+		} else {
+			hasWaiting = true
+		}
+		job.Name, _ = util.SplitStringAtByteN(job.Name, 255)
+		runJobs = append(runJobs, &ActionRunJob{
+			RunID:             run.ID,
+			RepoID:            run.RepoID,
+			OwnerID:           run.OwnerID,
+			CommitSHA:         run.CommitSHA,
+			IsForkPullRequest: run.IsForkPullRequest,
+			Name:              job.Name,
+			WorkflowPayload:   payload,
+			JobID:             id,
+			Needs:             needs,
+			RunsOn:            job.RunsOn(),
+			Status:            status,
+		})
+	}
+	if err := db.Insert(ctx, runJobs); err != nil {
+		return err
+	}
+
+	// if there is a job in the waiting status, increase tasks version.
+	if hasWaiting {
+		if err := IncreaseTaskVersion(ctx, run.OwnerID, run.RepoID); err != nil {
+			return err
+		}
+	}
+
+	return commiter.Commit()
+}
+
+func GetLatestRun(ctx context.Context, repoID int64) (*ActionRun, error) {
+	var run ActionRun
+	has, err := db.GetEngine(ctx).Where("repo_id=?", repoID).OrderBy("id DESC").Limit(1).Get(&run)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("latest run: %w", util.ErrNotExist)
+	}
+	return &run, nil
+}
+
+func GetLatestRunForBranchAndWorkflow(ctx context.Context, repoID int64, branch, workflowFile, event string) (*ActionRun, error) {
+	var run ActionRun
+	q := db.GetEngine(ctx).Where("repo_id=?", repoID).And("workflow_id=?", workflowFile)
+	if event != "" {
+		q = q.And("event=?", event)
+	}
+	if branch != "" {
+		q = q.And("ref=?", branch)
+	}
+	has, err := q.Desc("id").Get(&run)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, util.NewNotExistErrorf("run with repo_id %d, ref %s, event %s, workflow_id %s", repoID, branch, event, workflowFile)
+	}
+	return &run, nil
+}
+
+func GetRunByID(ctx context.Context, id int64) (*ActionRun, error) {
+	var run ActionRun
+	has, err := db.GetEngine(ctx).Where("id=?", id).Get(&run)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("run with id %d: %w", id, util.ErrNotExist)
+	}
+
+	return &run, nil
+}
+
+func GetRunByIndex(ctx context.Context, repoID, index int64) (*ActionRun, error) {
+	run := &ActionRun{
+		RepoID: repoID,
+		Index:  index,
+	}
+	has, err := db.GetEngine(ctx).Get(run)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("run with index %d %d: %w", repoID, index, util.ErrNotExist)
+	}
+
+	return run, nil
+}
+
+// UpdateRun updates a run.
+// It requires the inputted run has Version set.
+// It will return error if the version is not matched (it means the run has been changed after loaded).
+func UpdateRun(ctx context.Context, run *ActionRun, cols ...string) error {
+	sess := db.GetEngine(ctx).ID(run.ID)
+	if len(cols) > 0 {
+		sess.Cols(cols...)
+	}
+	affected, err := sess.Update(run)
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		return fmt.Errorf("run has changed")
+		// It's impossible that the run is not found, since Gitea never deletes runs.
+	}
+
+	if run.Status != 0 || slices.Contains(cols, "status") {
+		if run.RepoID == 0 {
+			run, err = GetRunByID(ctx, run.ID)
+			if err != nil {
+				return err
+			}
+		}
+		if run.Repo == nil {
+			repo, err := repo_model.GetRepositoryByID(ctx, run.RepoID)
+			if err != nil {
+				return err
+			}
+			run.Repo = repo
+		}
+		if err := updateRepoRunsNumbers(ctx, run.Repo); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+type ActionRunIndex db.ResourceIndex
diff --git a/models/actions/run_job.go b/models/actions/run_job.go
new file mode 100644
index 0000000..4b86640
--- /dev/null
+++ b/models/actions/run_job.go
@@ -0,0 +1,180 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ActionRunJob represents a job of a run
+type ActionRunJob struct {
+	ID                int64
+	RunID             int64      `xorm:"index"`
+	Run               *ActionRun `xorm:"-"`
+	RepoID            int64      `xorm:"index"`
+	OwnerID           int64      `xorm:"index"`
+	CommitSHA         string     `xorm:"index"`
+	IsForkPullRequest bool
+	Name              string `xorm:"VARCHAR(255)"`
+	Attempt           int64
+	WorkflowPayload   []byte
+	JobID             string   `xorm:"VARCHAR(255)"` // job id in workflow, not job's id
+	Needs             []string `xorm:"JSON TEXT"`
+	RunsOn            []string `xorm:"JSON TEXT"`
+	TaskID            int64    // the latest task of the job
+	Status            Status   `xorm:"index"`
+	Started           timeutil.TimeStamp
+	Stopped           timeutil.TimeStamp
+	Created           timeutil.TimeStamp `xorm:"created"`
+	Updated           timeutil.TimeStamp `xorm:"updated index"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionRunJob))
+}
+
+func (job *ActionRunJob) Duration() time.Duration {
+	return calculateDuration(job.Started, job.Stopped, job.Status)
+}
+
+func (job *ActionRunJob) LoadRun(ctx context.Context) error {
+	if job.Run == nil {
+		run, err := GetRunByID(ctx, job.RunID)
+		if err != nil {
+			return err
+		}
+		job.Run = run
+	}
+	return nil
+}
+
+// LoadAttributes load Run if not loaded
+func (job *ActionRunJob) LoadAttributes(ctx context.Context) error {
+	if job == nil {
+		return nil
+	}
+
+	if err := job.LoadRun(ctx); err != nil {
+		return err
+	}
+
+	return job.Run.LoadAttributes(ctx)
+}
+
+func GetRunJobByID(ctx context.Context, id int64) (*ActionRunJob, error) {
+	var job ActionRunJob
+	has, err := db.GetEngine(ctx).Where("id=?", id).Get(&job)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("run job with id %d: %w", id, util.ErrNotExist)
+	}
+
+	return &job, nil
+}
+
+func GetRunJobsByRunID(ctx context.Context, runID int64) ([]*ActionRunJob, error) {
+	var jobs []*ActionRunJob
+	if err := db.GetEngine(ctx).Where("run_id=?", runID).OrderBy("id").Find(&jobs); err != nil {
+		return nil, err
+	}
+	return jobs, nil
+}
+
+func UpdateRunJob(ctx context.Context, job *ActionRunJob, cond builder.Cond, cols ...string) (int64, error) {
+	e := db.GetEngine(ctx)
+
+	sess := e.ID(job.ID)
+	if len(cols) > 0 {
+		sess.Cols(cols...)
+	}
+
+	if cond != nil {
+		sess.Where(cond)
+	}
+
+	affected, err := sess.Update(job)
+	if err != nil {
+		return 0, err
+	}
+
+	if affected == 0 || (!slices.Contains(cols, "status") && job.Status == 0) {
+		return affected, nil
+	}
+
+	if affected != 0 && slices.Contains(cols, "status") && job.Status.IsWaiting() {
+		// if the status of job changes to waiting again, increase tasks version.
+		if err := IncreaseTaskVersion(ctx, job.OwnerID, job.RepoID); err != nil {
+			return 0, err
+		}
+	}
+
+	if job.RunID == 0 {
+		var err error
+		if job, err = GetRunJobByID(ctx, job.ID); err != nil {
+			return 0, err
+		}
+	}
+
+	{
+		// Other goroutines may aggregate the status of the run and update it too.
+		// So we need load the run and its jobs before updating the run.
+		run, err := GetRunByID(ctx, job.RunID)
+		if err != nil {
+			return 0, err
+		}
+		jobs, err := GetRunJobsByRunID(ctx, job.RunID)
+		if err != nil {
+			return 0, err
+		}
+		run.Status = aggregateJobStatus(jobs)
+		if run.Started.IsZero() && run.Status.IsRunning() {
+			run.Started = timeutil.TimeStampNow()
+		}
+		if run.Stopped.IsZero() && run.Status.IsDone() {
+			run.Stopped = timeutil.TimeStampNow()
+		}
+		if err := UpdateRun(ctx, run, "status", "started", "stopped"); err != nil {
+			return 0, fmt.Errorf("update run %d: %w", run.ID, err)
+		}
+	}
+
+	return affected, nil
+}
+
+func aggregateJobStatus(jobs []*ActionRunJob) Status {
+	allDone := true
+	allWaiting := true
+	hasFailure := false
+	for _, job := range jobs {
+		if !job.Status.IsDone() {
+			allDone = false
+		}
+		if job.Status != StatusWaiting && !job.Status.IsDone() {
+			allWaiting = false
+		}
+		if job.Status == StatusFailure || job.Status == StatusCancelled {
+			hasFailure = true
+		}
+	}
+	if allDone {
+		if hasFailure {
+			return StatusFailure
+		}
+		return StatusSuccess
+	}
+	if allWaiting {
+		return StatusWaiting
+	}
+	return StatusRunning
+}
diff --git a/models/actions/run_job_list.go b/models/actions/run_job_list.go
new file mode 100644
index 0000000..6c5d3b3
--- /dev/null
+++ b/models/actions/run_job_list.go
@@ -0,0 +1,80 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+type ActionJobList []*ActionRunJob
+
+func (jobs ActionJobList) GetRunIDs() []int64 {
+	return container.FilterSlice(jobs, func(j *ActionRunJob) (int64, bool) {
+		return j.RunID, j.RunID != 0
+	})
+}
+
+func (jobs ActionJobList) LoadRuns(ctx context.Context, withRepo bool) error {
+	runIDs := jobs.GetRunIDs()
+	runs := make(map[int64]*ActionRun, len(runIDs))
+	if err := db.GetEngine(ctx).In("id", runIDs).Find(&runs); err != nil {
+		return err
+	}
+	for _, j := range jobs {
+		if j.RunID > 0 && j.Run == nil {
+			j.Run = runs[j.RunID]
+		}
+	}
+	if withRepo {
+		var runsList RunList = make([]*ActionRun, 0, len(runs))
+		for _, r := range runs {
+			runsList = append(runsList, r)
+		}
+		return runsList.LoadRepos(ctx)
+	}
+	return nil
+}
+
+func (jobs ActionJobList) LoadAttributes(ctx context.Context, withRepo bool) error {
+	return jobs.LoadRuns(ctx, withRepo)
+}
+
+type FindRunJobOptions struct {
+	db.ListOptions
+	RunID         int64
+	RepoID        int64
+	OwnerID       int64
+	CommitSHA     string
+	Statuses      []Status
+	UpdatedBefore timeutil.TimeStamp
+}
+
+func (opts FindRunJobOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RunID > 0 {
+		cond = cond.And(builder.Eq{"run_id": opts.RunID})
+	}
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+	if opts.CommitSHA != "" {
+		cond = cond.And(builder.Eq{"commit_sha": opts.CommitSHA})
+	}
+	if len(opts.Statuses) > 0 {
+		cond = cond.And(builder.In("status", opts.Statuses))
+	}
+	if opts.UpdatedBefore > 0 {
+		cond = cond.And(builder.Lt{"updated": opts.UpdatedBefore})
+	}
+	return cond
+}
diff --git a/models/actions/run_list.go b/models/actions/run_list.go
new file mode 100644
index 0000000..4046c7d
--- /dev/null
+++ b/models/actions/run_list.go
@@ -0,0 +1,138 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"xorm.io/builder"
+)
+
+type RunList []*ActionRun
+
+// GetUserIDs returns a slice of user's id
+func (runs RunList) GetUserIDs() []int64 {
+	return container.FilterSlice(runs, func(run *ActionRun) (int64, bool) {
+		return run.TriggerUserID, true
+	})
+}
+
+func (runs RunList) GetRepoIDs() []int64 {
+	return container.FilterSlice(runs, func(run *ActionRun) (int64, bool) {
+		return run.RepoID, true
+	})
+}
+
+func (runs RunList) LoadTriggerUser(ctx context.Context) error {
+	userIDs := runs.GetUserIDs()
+	users := make(map[int64]*user_model.User, len(userIDs))
+	if err := db.GetEngine(ctx).In("id", userIDs).Find(&users); err != nil {
+		return err
+	}
+	for _, run := range runs {
+		if run.TriggerUserID == user_model.ActionsUserID {
+			run.TriggerUser = user_model.NewActionsUser()
+		} else {
+			run.TriggerUser = users[run.TriggerUserID]
+			if run.TriggerUser == nil {
+				run.TriggerUser = user_model.NewGhostUser()
+			}
+		}
+	}
+	return nil
+}
+
+func (runs RunList) LoadRepos(ctx context.Context) error {
+	repoIDs := runs.GetRepoIDs()
+	repos, err := repo_model.GetRepositoriesMapByIDs(ctx, repoIDs)
+	if err != nil {
+		return err
+	}
+	for _, run := range runs {
+		run.Repo = repos[run.RepoID]
+	}
+	return nil
+}
+
+type FindRunOptions struct {
+	db.ListOptions
+	RepoID        int64
+	OwnerID       int64
+	WorkflowID    string
+	Ref           string // the commit/tag/… that caused this workflow
+	TriggerUserID int64
+	TriggerEvent  webhook_module.HookEventType
+	Approved      bool // not util.OptionalBool, it works only when it's true
+	Status        []Status
+}
+
+func (opts FindRunOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+	if opts.WorkflowID != "" {
+		cond = cond.And(builder.Eq{"workflow_id": opts.WorkflowID})
+	}
+	if opts.TriggerUserID > 0 {
+		cond = cond.And(builder.Eq{"trigger_user_id": opts.TriggerUserID})
+	}
+	if opts.Approved {
+		cond = cond.And(builder.Gt{"approved_by": 0})
+	}
+	if len(opts.Status) > 0 {
+		cond = cond.And(builder.In("status", opts.Status))
+	}
+	if opts.Ref != "" {
+		cond = cond.And(builder.Eq{"ref": opts.Ref})
+	}
+	if opts.TriggerEvent != "" {
+		cond = cond.And(builder.Eq{"trigger_event": opts.TriggerEvent})
+	}
+	return cond
+}
+
+func (opts FindRunOptions) ToOrders() string {
+	return "`id` DESC"
+}
+
+type StatusInfo struct {
+	Status          int
+	DisplayedStatus string
+}
+
+// GetStatusInfoList returns a slice of StatusInfo
+func GetStatusInfoList(ctx context.Context) []StatusInfo {
+	// same as those in aggregateJobStatus
+	allStatus := []Status{StatusSuccess, StatusFailure, StatusWaiting, StatusRunning}
+	statusInfoList := make([]StatusInfo, 0, 4)
+	for _, s := range allStatus {
+		statusInfoList = append(statusInfoList, StatusInfo{
+			Status:          int(s),
+			DisplayedStatus: s.String(),
+		})
+	}
+	return statusInfoList
+}
+
+// GetActors returns a slice of Actors
+func GetActors(ctx context.Context, repoID int64) ([]*user_model.User, error) {
+	actors := make([]*user_model.User, 0, 10)
+
+	return actors, db.GetEngine(ctx).Where(builder.In("id", builder.Select("`action_run`.trigger_user_id").From("`action_run`").
+		GroupBy("`action_run`.trigger_user_id").
+		Where(builder.Eq{"`action_run`.repo_id": repoID}))).
+		Cols("id", "name", "full_name", "avatar", "avatar_email", "use_custom_avatar").
+		OrderBy(user_model.GetOrderByName()).
+		Find(&actors)
+}
diff --git a/models/actions/runner.go b/models/actions/runner.go
new file mode 100644
index 0000000..175f211
--- /dev/null
+++ b/models/actions/runner.go
@@ -0,0 +1,362 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"encoding/binary"
+	"encoding/hex"
+	"fmt"
+	"strings"
+	"time"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/shared/types"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/translation"
+	"code.gitea.io/gitea/modules/util"
+
+	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+	"xorm.io/builder"
+)
+
+// ActionRunner represents runner machines
+//
+// It can be:
+//  1. global runner, OwnerID is 0 and RepoID is 0
+//  2. org/user level runner, OwnerID is org/user ID and RepoID is 0
+//  3. repo level runner, OwnerID is 0 and RepoID is repo ID
+//
+// Please note that it's not acceptable to have both OwnerID and RepoID to be non-zero,
+// or it will be complicated to find runners belonging to a specific owner.
+// For example, conditions like `OwnerID = 1` will also return runner {OwnerID: 1, RepoID: 1},
+// but it's a repo level runner, not an org/user level runner.
+// To avoid this, make it clear with {OwnerID: 0, RepoID: 1} for repo level runners.
+type ActionRunner struct {
+	ID          int64
+	UUID        string                 `xorm:"CHAR(36) UNIQUE"`
+	Name        string                 `xorm:"VARCHAR(255)"`
+	Version     string                 `xorm:"VARCHAR(64)"`
+	OwnerID     int64                  `xorm:"index"`
+	Owner       *user_model.User       `xorm:"-"`
+	RepoID      int64                  `xorm:"index"`
+	Repo        *repo_model.Repository `xorm:"-"`
+	Description string                 `xorm:"TEXT"`
+	Base        int                    // 0 native 1 docker 2 virtual machine
+	RepoRange   string                 // glob match which repositories could use this runner
+
+	Token     string `xorm:"-"`
+	TokenHash string `xorm:"UNIQUE"` // sha256 of token
+	TokenSalt string
+	// TokenLastEight string `xorm:"token_last_eight"` // it's unnecessary because we don't find runners by token
+
+	LastOnline timeutil.TimeStamp `xorm:"index"`
+	LastActive timeutil.TimeStamp `xorm:"index"`
+
+	// Store labels defined in state file (default: .runner file) of `act_runner`
+	AgentLabels []string `xorm:"TEXT"`
+
+	Created timeutil.TimeStamp `xorm:"created"`
+	Updated timeutil.TimeStamp `xorm:"updated"`
+	Deleted timeutil.TimeStamp `xorm:"deleted"`
+}
+
+const (
+	RunnerOfflineTime = time.Minute
+	RunnerIdleTime    = 10 * time.Second
+)
+
+// BelongsToOwnerName before calling, should guarantee that all attributes are loaded
+func (r *ActionRunner) BelongsToOwnerName() string {
+	if r.RepoID != 0 {
+		return r.Repo.FullName()
+	}
+	if r.OwnerID != 0 {
+		return r.Owner.Name
+	}
+	return ""
+}
+
+func (r *ActionRunner) BelongsToOwnerType() types.OwnerType {
+	if r.RepoID != 0 {
+		return types.OwnerTypeRepository
+	}
+	if r.OwnerID != 0 {
+		if r.Owner.Type == user_model.UserTypeOrganization {
+			return types.OwnerTypeOrganization
+		} else if r.Owner.Type == user_model.UserTypeIndividual {
+			return types.OwnerTypeIndividual
+		}
+	}
+	return types.OwnerTypeSystemGlobal
+}
+
+// if the logic here changed, you should also modify FindRunnerOptions.ToCond
+func (r *ActionRunner) Status() runnerv1.RunnerStatus {
+	if time.Since(r.LastOnline.AsTime()) > RunnerOfflineTime {
+		return runnerv1.RunnerStatus_RUNNER_STATUS_OFFLINE
+	}
+	if time.Since(r.LastActive.AsTime()) > RunnerIdleTime {
+		return runnerv1.RunnerStatus_RUNNER_STATUS_IDLE
+	}
+	return runnerv1.RunnerStatus_RUNNER_STATUS_ACTIVE
+}
+
+func (r *ActionRunner) StatusName() string {
+	return strings.ToLower(strings.TrimPrefix(r.Status().String(), "RUNNER_STATUS_"))
+}
+
+func (r *ActionRunner) StatusLocaleName(lang translation.Locale) string {
+	return lang.TrString("actions.runners.status." + r.StatusName())
+}
+
+func (r *ActionRunner) IsOnline() bool {
+	status := r.Status()
+	if status == runnerv1.RunnerStatus_RUNNER_STATUS_IDLE || status == runnerv1.RunnerStatus_RUNNER_STATUS_ACTIVE {
+		return true
+	}
+	return false
+}
+
+// Editable checks if the runner is editable by the user
+func (r *ActionRunner) Editable(ownerID, repoID int64) bool {
+	if ownerID == 0 && repoID == 0 {
+		return true
+	}
+	if ownerID > 0 && r.OwnerID == ownerID {
+		return true
+	}
+	return repoID > 0 && r.RepoID == repoID
+}
+
+// LoadAttributes loads the attributes of the runner
+func (r *ActionRunner) LoadAttributes(ctx context.Context) error {
+	if r.OwnerID > 0 {
+		var user user_model.User
+		has, err := db.GetEngine(ctx).ID(r.OwnerID).Get(&user)
+		if err != nil {
+			return err
+		}
+		if has {
+			r.Owner = &user
+		}
+	}
+	if r.RepoID > 0 {
+		var repo repo_model.Repository
+		has, err := db.GetEngine(ctx).ID(r.RepoID).Get(&repo)
+		if err != nil {
+			return err
+		}
+		if has {
+			r.Repo = &repo
+		}
+	}
+	return nil
+}
+
+func (r *ActionRunner) GenerateToken() (err error) {
+	r.Token, r.TokenSalt, r.TokenHash, _, err = generateSaltedToken()
+	return err
+}
+
+// UpdateSecret updates the hash based on the specified token. It does not
+// ensure that the runner's UUID matches the first 16 bytes of the token.
+func (r *ActionRunner) UpdateSecret(token string) error {
+	saltBytes, err := util.CryptoRandomBytes(16)
+	if err != nil {
+		return fmt.Errorf("CryptoRandomBytes %v", err)
+	}
+
+	salt := hex.EncodeToString(saltBytes)
+
+	r.Token = token
+	r.TokenSalt = salt
+	r.TokenHash = auth_model.HashToken(token, salt)
+	return nil
+}
+
+func init() {
+	db.RegisterModel(&ActionRunner{})
+}
+
+type FindRunnerOptions struct {
+	db.ListOptions
+	RepoID        int64
+	OwnerID       int64 // it will be ignored if RepoID is set
+	Sort          string
+	Filter        string
+	IsOnline      optional.Option[bool]
+	WithAvailable bool // not only runners belong to, but also runners can be used
+}
+
+func (opts FindRunnerOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+
+	if opts.RepoID > 0 {
+		c := builder.NewCond().And(builder.Eq{"repo_id": opts.RepoID})
+		if opts.WithAvailable {
+			c = c.Or(builder.Eq{"owner_id": builder.Select("owner_id").From("repository").Where(builder.Eq{"id": opts.RepoID})})
+			c = c.Or(builder.Eq{"repo_id": 0, "owner_id": 0})
+		}
+		cond = cond.And(c)
+	} else if opts.OwnerID > 0 { // OwnerID is ignored if RepoID is set
+		c := builder.NewCond().And(builder.Eq{"owner_id": opts.OwnerID})
+		if opts.WithAvailable {
+			c = c.Or(builder.Eq{"repo_id": 0, "owner_id": 0})
+		}
+		cond = cond.And(c)
+	}
+
+	if opts.Filter != "" {
+		cond = cond.And(builder.Like{"name", opts.Filter})
+	}
+
+	if opts.IsOnline.Has() {
+		if opts.IsOnline.Value() {
+			cond = cond.And(builder.Gt{"last_online": time.Now().Add(-RunnerOfflineTime).Unix()})
+		} else {
+			cond = cond.And(builder.Lte{"last_online": time.Now().Add(-RunnerOfflineTime).Unix()})
+		}
+	}
+	return cond
+}
+
+func (opts FindRunnerOptions) ToOrders() string {
+	switch opts.Sort {
+	case "online":
+		return "last_online DESC"
+	case "offline":
+		return "last_online ASC"
+	case "alphabetically":
+		return "name ASC"
+	case "reversealphabetically":
+		return "name DESC"
+	case "newest":
+		return "id DESC"
+	case "oldest":
+		return "id ASC"
+	}
+	return "last_online DESC"
+}
+
+// GetRunnerByUUID returns a runner via uuid
+func GetRunnerByUUID(ctx context.Context, uuid string) (*ActionRunner, error) {
+	var runner ActionRunner
+	has, err := db.GetEngine(ctx).Where("uuid=?", uuid).Get(&runner)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("runner with uuid %s: %w", uuid, util.ErrNotExist)
+	}
+	return &runner, nil
+}
+
+// GetRunnerByID returns a runner via id
+func GetRunnerByID(ctx context.Context, id int64) (*ActionRunner, error) {
+	var runner ActionRunner
+	has, err := db.GetEngine(ctx).Where("id=?", id).Get(&runner)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("runner with id %d: %w", id, util.ErrNotExist)
+	}
+	return &runner, nil
+}
+
+// UpdateRunner updates runner's information.
+func UpdateRunner(ctx context.Context, r *ActionRunner, cols ...string) error {
+	e := db.GetEngine(ctx)
+	var err error
+	if len(cols) == 0 {
+		_, err = e.ID(r.ID).AllCols().Update(r)
+	} else {
+		_, err = e.ID(r.ID).Cols(cols...).Update(r)
+	}
+	return err
+}
+
+// DeleteRunner deletes a runner by given ID.
+func DeleteRunner(ctx context.Context, id int64) error {
+	runner, err := GetRunnerByID(ctx, id)
+	if err != nil {
+		return err
+	}
+
+	// Replace the UUID, which was either based on the secret's first 16 bytes or an UUIDv4,
+	// with a sequence of 8 0xff bytes followed by the little-endian version of the record's
+	// identifier. This will prevent the deleted record's identifier from colliding with any
+	// new record.
+	b := make([]byte, 8)
+	binary.LittleEndian.PutUint64(b, uint64(id))
+	runner.UUID = fmt.Sprintf("ffffffff-ffff-ffff-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x",
+		b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7])
+
+	err = UpdateRunner(ctx, runner, "UUID")
+	if err != nil {
+		return err
+	}
+
+	_, err = db.DeleteByID[ActionRunner](ctx, id)
+	return err
+}
+
+// CreateRunner creates new runner.
+func CreateRunner(ctx context.Context, t *ActionRunner) error {
+	if t.OwnerID != 0 && t.RepoID != 0 {
+		// It's trying to create a runner that belongs to a repository, but OwnerID has been set accidentally.
+		// Remove OwnerID to avoid confusion; it's not worth returning an error here.
+		t.OwnerID = 0
+	}
+	return db.Insert(ctx, t)
+}
+
+func CountRunnersWithoutBelongingOwner(ctx context.Context) (int64, error) {
+	// Only affect action runners were a owner ID is set, as actions runners
+	// could also be created on a repository.
+	return db.GetEngine(ctx).Table("action_runner").
+		Join("LEFT", "`user`", "`action_runner`.owner_id = `user`.id").
+		Where("`action_runner`.owner_id != ?", 0).
+		And(builder.IsNull{"`user`.id"}).
+		Count(new(ActionRunner))
+}
+
+func FixRunnersWithoutBelongingOwner(ctx context.Context) (int64, error) {
+	subQuery := builder.Select("`action_runner`.id").
+		From("`action_runner`").
+		Join("LEFT", "`user`", "`action_runner`.owner_id = `user`.id").
+		Where(builder.Neq{"`action_runner`.owner_id": 0}).
+		And(builder.IsNull{"`user`.id"})
+	b := builder.Delete(builder.In("id", subQuery)).From("`action_runner`")
+	res, err := db.GetEngine(ctx).Exec(b)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
+
+func CountRunnersWithoutBelongingRepo(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Table("action_runner").
+		Join("LEFT", "`repository`", "`action_runner`.repo_id = `repository`.id").
+		Where("`action_runner`.repo_id != ?", 0).
+		And(builder.IsNull{"`repository`.id"}).
+		Count(new(ActionRunner))
+}
+
+func FixRunnersWithoutBelongingRepo(ctx context.Context) (int64, error) {
+	subQuery := builder.Select("`action_runner`.id").
+		From("`action_runner`").
+		Join("LEFT", "`repository`", "`action_runner`.repo_id = `repository`.id").
+		Where(builder.Neq{"`action_runner`.repo_id": 0}).
+		And(builder.IsNull{"`repository`.id"})
+	b := builder.Delete(builder.In("id", subQuery)).From("`action_runner`")
+	res, err := db.GetEngine(ctx).Exec(b)
+	if err != nil {
+		return 0, err
+	}
+	return res.RowsAffected()
+}
diff --git a/models/actions/runner_list.go b/models/actions/runner_list.go
new file mode 100644
index 0000000..3ef8ebb
--- /dev/null
+++ b/models/actions/runner_list.go
@@ -0,0 +1,65 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+)
+
+type RunnerList []*ActionRunner
+
+// GetUserIDs returns a slice of user's id
+func (runners RunnerList) GetUserIDs() []int64 {
+	return container.FilterSlice(runners, func(runner *ActionRunner) (int64, bool) {
+		return runner.OwnerID, runner.OwnerID != 0
+	})
+}
+
+func (runners RunnerList) LoadOwners(ctx context.Context) error {
+	userIDs := runners.GetUserIDs()
+	users := make(map[int64]*user_model.User, len(userIDs))
+	if err := db.GetEngine(ctx).In("id", userIDs).Find(&users); err != nil {
+		return err
+	}
+	for _, runner := range runners {
+		if runner.OwnerID > 0 && runner.Owner == nil {
+			runner.Owner = users[runner.OwnerID]
+		}
+	}
+	return nil
+}
+
+func (runners RunnerList) getRepoIDs() []int64 {
+	return container.FilterSlice(runners, func(runner *ActionRunner) (int64, bool) {
+		return runner.RepoID, runner.RepoID > 0
+	})
+}
+
+func (runners RunnerList) LoadRepos(ctx context.Context) error {
+	repoIDs := runners.getRepoIDs()
+	repos := make(map[int64]*repo_model.Repository, len(repoIDs))
+	if err := db.GetEngine(ctx).In("id", repoIDs).Find(&repos); err != nil {
+		return err
+	}
+
+	for _, runner := range runners {
+		if runner.RepoID > 0 && runner.Repo == nil {
+			runner.Repo = repos[runner.RepoID]
+		}
+	}
+	return nil
+}
+
+func (runners RunnerList) LoadAttributes(ctx context.Context) error {
+	if err := runners.LoadOwners(ctx); err != nil {
+		return err
+	}
+
+	return runners.LoadRepos(ctx)
+}
diff --git a/models/actions/runner_test.go b/models/actions/runner_test.go
new file mode 100644
index 0000000..26ef4c4
--- /dev/null
+++ b/models/actions/runner_test.go
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"encoding/binary"
+	"fmt"
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// TestUpdateSecret checks that ActionRunner.UpdateSecret() sets the Token,
+// TokenSalt and TokenHash fields based on the specified token.
+func TestUpdateSecret(t *testing.T) {
+	runner := ActionRunner{}
+	token := "0123456789012345678901234567890123456789"
+
+	err := runner.UpdateSecret(token)
+
+	require.NoError(t, err)
+	assert.Equal(t, token, runner.Token)
+	assert.Regexp(t, "^[0-9a-f]{32}$", runner.TokenSalt)
+	assert.Equal(t, runner.TokenHash, auth_model.HashToken(token, runner.TokenSalt))
+}
+
+func TestDeleteRunner(t *testing.T) {
+	const recordID = 12345678
+	require.NoError(t, unittest.PrepareTestDatabase())
+	before := unittest.AssertExistsAndLoadBean(t, &ActionRunner{ID: recordID})
+
+	err := DeleteRunner(db.DefaultContext, recordID)
+	require.NoError(t, err)
+
+	var after ActionRunner
+	found, err := db.GetEngine(db.DefaultContext).ID(recordID).Unscoped().Get(&after)
+	require.NoError(t, err)
+	assert.True(t, found)
+
+	// Most fields (namely Name, Version, OwnerID, RepoID, Description, Base, RepoRange,
+	// TokenHash, TokenSalt, LastOnline, LastActive, AgentLabels and Created) are unaffected
+	assert.Equal(t, before.Name, after.Name)
+	assert.Equal(t, before.Version, after.Version)
+	assert.Equal(t, before.OwnerID, after.OwnerID)
+	assert.Equal(t, before.RepoID, after.RepoID)
+	assert.Equal(t, before.Description, after.Description)
+	assert.Equal(t, before.Base, after.Base)
+	assert.Equal(t, before.RepoRange, after.RepoRange)
+	assert.Equal(t, before.TokenHash, after.TokenHash)
+	assert.Equal(t, before.TokenSalt, after.TokenSalt)
+	assert.Equal(t, before.LastOnline, after.LastOnline)
+	assert.Equal(t, before.LastActive, after.LastActive)
+	assert.Equal(t, before.AgentLabels, after.AgentLabels)
+	assert.Equal(t, before.Created, after.Created)
+
+	// Deleted contains a value
+	assert.NotNil(t, after.Deleted)
+
+	// UUID was modified
+	assert.NotEqual(t, before.UUID, after.UUID)
+	// UUID starts with ffffffff-ffff-ffff-
+	assert.Equal(t, "ffffffff-ffff-ffff-", after.UUID[:19])
+	// UUID ends with LE binary representation of record ID
+	idAsBinary := make([]byte, 8)
+	binary.LittleEndian.PutUint64(idAsBinary, uint64(recordID))
+	idAsHexadecimal := fmt.Sprintf("%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x", idAsBinary[0],
+		idAsBinary[1], idAsBinary[2], idAsBinary[3], idAsBinary[4], idAsBinary[5],
+		idAsBinary[6], idAsBinary[7])
+	assert.Equal(t, idAsHexadecimal, after.UUID[19:])
+}
diff --git a/models/actions/runner_token.go b/models/actions/runner_token.go
new file mode 100644
index 0000000..fd6ba7e
--- /dev/null
+++ b/models/actions/runner_token.go
@@ -0,0 +1,120 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ActionRunnerToken represents runner tokens
+//
+// It can be:
+//  1. global token, OwnerID is 0 and RepoID is 0
+//  2. org/user level token, OwnerID is org/user ID and RepoID is 0
+//  3. repo level token, OwnerID is 0 and RepoID is repo ID
+//
+// Please note that it's not acceptable to have both OwnerID and RepoID to be non-zero,
+// or it will be complicated to find tokens belonging to a specific owner.
+// For example, conditions like `OwnerID = 1` will also return token {OwnerID: 1, RepoID: 1},
+// but it's a repo level token, not an org/user level token.
+// To avoid this, make it clear with {OwnerID: 0, RepoID: 1} for repo level tokens.
+type ActionRunnerToken struct {
+	ID       int64
+	Token    string                 `xorm:"UNIQUE"`
+	OwnerID  int64                  `xorm:"index"`
+	Owner    *user_model.User       `xorm:"-"`
+	RepoID   int64                  `xorm:"index"`
+	Repo     *repo_model.Repository `xorm:"-"`
+	IsActive bool                   // true means it can be used
+
+	Created timeutil.TimeStamp `xorm:"created"`
+	Updated timeutil.TimeStamp `xorm:"updated"`
+	Deleted timeutil.TimeStamp `xorm:"deleted"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionRunnerToken))
+}
+
+// GetRunnerToken returns a action runner via token
+func GetRunnerToken(ctx context.Context, token string) (*ActionRunnerToken, error) {
+	var runnerToken ActionRunnerToken
+	has, err := db.GetEngine(ctx).Where("token=?", token).Get(&runnerToken)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("runner token %q: %w", token, util.ErrNotExist)
+	}
+	return &runnerToken, nil
+}
+
+// UpdateRunnerToken updates runner token information.
+func UpdateRunnerToken(ctx context.Context, r *ActionRunnerToken, cols ...string) (err error) {
+	e := db.GetEngine(ctx)
+
+	if len(cols) == 0 {
+		_, err = e.ID(r.ID).AllCols().Update(r)
+	} else {
+		_, err = e.ID(r.ID).Cols(cols...).Update(r)
+	}
+	return err
+}
+
+// NewRunnerToken creates a new active runner token and invalidate all old tokens
+// ownerID will be ignored and treated as 0 if repoID is non-zero.
+func NewRunnerToken(ctx context.Context, ownerID, repoID int64) (*ActionRunnerToken, error) {
+	if ownerID != 0 && repoID != 0 {
+		// It's trying to create a runner token that belongs to a repository, but OwnerID has been set accidentally.
+		// Remove OwnerID to avoid confusion; it's not worth returning an error here.
+		ownerID = 0
+	}
+
+	token, err := util.CryptoRandomString(40)
+	if err != nil {
+		return nil, err
+	}
+	runnerToken := &ActionRunnerToken{
+		OwnerID:  ownerID,
+		RepoID:   repoID,
+		IsActive: true,
+		Token:    token,
+	}
+
+	return runnerToken, db.WithTx(ctx, func(ctx context.Context) error {
+		if _, err := db.GetEngine(ctx).Where("owner_id =? AND repo_id = ?", ownerID, repoID).Cols("is_active").Update(&ActionRunnerToken{
+			IsActive: false,
+		}); err != nil {
+			return err
+		}
+
+		_, err = db.GetEngine(ctx).Insert(runnerToken)
+		return err
+	})
+}
+
+// GetLatestRunnerToken returns the latest runner token
+func GetLatestRunnerToken(ctx context.Context, ownerID, repoID int64) (*ActionRunnerToken, error) {
+	if ownerID != 0 && repoID != 0 {
+		// It's trying to get a runner token that belongs to a repository, but OwnerID has been set accidentally.
+		// Remove OwnerID to avoid confusion; it's not worth returning an error here.
+		ownerID = 0
+	}
+
+	var runnerToken ActionRunnerToken
+	has, err := db.GetEngine(ctx).Where("owner_id=? AND repo_id=?", ownerID, repoID).
+		OrderBy("id DESC").Get(&runnerToken)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("runner token: %w", util.ErrNotExist)
+	}
+	return &runnerToken, nil
+}
diff --git a/models/actions/runner_token_test.go b/models/actions/runner_token_test.go
new file mode 100644
index 0000000..35c9a9d
--- /dev/null
+++ b/models/actions/runner_token_test.go
@@ -0,0 +1,41 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetLatestRunnerToken(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token := unittest.AssertExistsAndLoadBean(t, &ActionRunnerToken{ID: 3})
+	expectedToken, err := GetLatestRunnerToken(db.DefaultContext, 1, 0)
+	require.NoError(t, err)
+	assert.EqualValues(t, expectedToken, token)
+}
+
+func TestNewRunnerToken(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token, err := NewRunnerToken(db.DefaultContext, 1, 0)
+	require.NoError(t, err)
+	expectedToken, err := GetLatestRunnerToken(db.DefaultContext, 1, 0)
+	require.NoError(t, err)
+	assert.EqualValues(t, expectedToken, token)
+}
+
+func TestUpdateRunnerToken(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token := unittest.AssertExistsAndLoadBean(t, &ActionRunnerToken{ID: 3})
+	token.IsActive = true
+	require.NoError(t, UpdateRunnerToken(db.DefaultContext, token))
+	expectedToken, err := GetLatestRunnerToken(db.DefaultContext, 1, 0)
+	require.NoError(t, err)
+	assert.EqualValues(t, expectedToken, token)
+}
diff --git a/models/actions/schedule.go b/models/actions/schedule.go
new file mode 100644
index 0000000..acb9961
--- /dev/null
+++ b/models/actions/schedule.go
@@ -0,0 +1,140 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+)
+
+// ActionSchedule represents a schedule of a workflow file
+type ActionSchedule struct {
+	ID            int64
+	Title         string
+	Specs         []string
+	RepoID        int64                  `xorm:"index"`
+	Repo          *repo_model.Repository `xorm:"-"`
+	OwnerID       int64                  `xorm:"index"`
+	WorkflowID    string
+	TriggerUserID int64
+	TriggerUser   *user_model.User `xorm:"-"`
+	Ref           string
+	CommitSHA     string
+	Event         webhook_module.HookEventType
+	EventPayload  string `xorm:"LONGTEXT"`
+	Content       []byte
+	Created       timeutil.TimeStamp `xorm:"created"`
+	Updated       timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionSchedule))
+}
+
+// GetSchedulesMapByIDs returns the schedules by given id slice.
+func GetSchedulesMapByIDs(ctx context.Context, ids []int64) (map[int64]*ActionSchedule, error) {
+	schedules := make(map[int64]*ActionSchedule, len(ids))
+	return schedules, db.GetEngine(ctx).In("id", ids).Find(&schedules)
+}
+
+// GetReposMapByIDs returns the repos by given id slice.
+func GetReposMapByIDs(ctx context.Context, ids []int64) (map[int64]*repo_model.Repository, error) {
+	repos := make(map[int64]*repo_model.Repository, len(ids))
+	return repos, db.GetEngine(ctx).In("id", ids).Find(&repos)
+}
+
+// CreateScheduleTask creates new schedule task.
+func CreateScheduleTask(ctx context.Context, rows []*ActionSchedule) error {
+	// Return early if there are no rows to insert
+	if len(rows) == 0 {
+		return nil
+	}
+
+	// Begin transaction
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Loop through each schedule row
+	for _, row := range rows {
+		// Create new schedule row
+		if err = db.Insert(ctx, row); err != nil {
+			return err
+		}
+
+		// Loop through each schedule spec and create a new spec row
+		now := time.Now()
+
+		for _, spec := range row.Specs {
+			specRow := &ActionScheduleSpec{
+				RepoID:     row.RepoID,
+				ScheduleID: row.ID,
+				Spec:       spec,
+			}
+			// Parse the spec and check for errors
+			schedule, err := specRow.Parse()
+			if err != nil {
+				continue // skip to the next spec if there's an error
+			}
+
+			specRow.Next = timeutil.TimeStamp(schedule.Next(now).Unix())
+
+			// Insert the new schedule spec row
+			if err = db.Insert(ctx, specRow); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Commit transaction
+	return committer.Commit()
+}
+
+func DeleteScheduleTaskByRepo(ctx context.Context, id int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err := db.GetEngine(ctx).Delete(&ActionSchedule{RepoID: id}); err != nil {
+		return err
+	}
+
+	if _, err := db.GetEngine(ctx).Delete(&ActionScheduleSpec{RepoID: id}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func CleanRepoScheduleTasks(ctx context.Context, repo *repo_model.Repository, cancelPreviousJobs bool) error {
+	// If actions disabled when there is schedule task, this will remove the outdated schedule tasks
+	// There is no other place we can do this because the app.ini will be changed manually
+	if err := DeleteScheduleTaskByRepo(ctx, repo.ID); err != nil {
+		return fmt.Errorf("DeleteCronTaskByRepo: %v", err)
+	}
+	if cancelPreviousJobs {
+		// cancel running cron jobs of this repository and delete old schedules
+		if err := CancelPreviousJobs(
+			ctx,
+			repo.ID,
+			repo.DefaultBranch,
+			"",
+			webhook_module.HookEventSchedule,
+		); err != nil {
+			return fmt.Errorf("CancelPreviousJobs: %v", err)
+		}
+	}
+	return nil
+}
diff --git a/models/actions/schedule_list.go b/models/actions/schedule_list.go
new file mode 100644
index 0000000..5361b94
--- /dev/null
+++ b/models/actions/schedule_list.go
@@ -0,0 +1,83 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+
+	"xorm.io/builder"
+)
+
+type ScheduleList []*ActionSchedule
+
+// GetUserIDs returns a slice of user's id
+func (schedules ScheduleList) GetUserIDs() []int64 {
+	return container.FilterSlice(schedules, func(schedule *ActionSchedule) (int64, bool) {
+		return schedule.TriggerUserID, true
+	})
+}
+
+func (schedules ScheduleList) GetRepoIDs() []int64 {
+	return container.FilterSlice(schedules, func(schedule *ActionSchedule) (int64, bool) {
+		return schedule.RepoID, true
+	})
+}
+
+func (schedules ScheduleList) LoadTriggerUser(ctx context.Context) error {
+	userIDs := schedules.GetUserIDs()
+	users := make(map[int64]*user_model.User, len(userIDs))
+	if err := db.GetEngine(ctx).In("id", userIDs).Find(&users); err != nil {
+		return err
+	}
+	for _, schedule := range schedules {
+		if schedule.TriggerUserID == user_model.ActionsUserID {
+			schedule.TriggerUser = user_model.NewActionsUser()
+		} else {
+			schedule.TriggerUser = users[schedule.TriggerUserID]
+			if schedule.TriggerUser == nil {
+				schedule.TriggerUser = user_model.NewGhostUser()
+			}
+		}
+	}
+	return nil
+}
+
+func (schedules ScheduleList) LoadRepos(ctx context.Context) error {
+	repoIDs := schedules.GetRepoIDs()
+	repos, err := repo_model.GetRepositoriesMapByIDs(ctx, repoIDs)
+	if err != nil {
+		return err
+	}
+	for _, schedule := range schedules {
+		schedule.Repo = repos[schedule.RepoID]
+	}
+	return nil
+}
+
+type FindScheduleOptions struct {
+	db.ListOptions
+	RepoID  int64
+	OwnerID int64
+}
+
+func (opts FindScheduleOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+
+	return cond
+}
+
+func (opts FindScheduleOptions) ToOrders() string {
+	return "`id` DESC"
+}
diff --git a/models/actions/schedule_spec.go b/models/actions/schedule_spec.go
new file mode 100644
index 0000000..923e5f7
--- /dev/null
+++ b/models/actions/schedule_spec.go
@@ -0,0 +1,73 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/robfig/cron/v3"
+)
+
+// ActionScheduleSpec represents a schedule spec of a workflow file
+type ActionScheduleSpec struct {
+	ID         int64
+	RepoID     int64                  `xorm:"index"`
+	Repo       *repo_model.Repository `xorm:"-"`
+	ScheduleID int64                  `xorm:"index"`
+	Schedule   *ActionSchedule        `xorm:"-"`
+
+	// Next time the job will run, or the zero time if Cron has not been
+	// started or this entry's schedule is unsatisfiable
+	Next timeutil.TimeStamp `xorm:"index"`
+	// Prev is the last time this job was run, or the zero time if never.
+	Prev timeutil.TimeStamp
+	Spec string
+
+	Created timeutil.TimeStamp `xorm:"created"`
+	Updated timeutil.TimeStamp `xorm:"updated"`
+}
+
+// Parse parses the spec and returns a cron.Schedule
+// Unlike the default cron parser, Parse uses UTC timezone as the default if none is specified.
+func (s *ActionScheduleSpec) Parse() (cron.Schedule, error) {
+	parser := cron.NewParser(cron.Minute | cron.Hour | cron.Dom | cron.Month | cron.Dow | cron.Descriptor)
+	schedule, err := parser.Parse(s.Spec)
+	if err != nil {
+		return nil, err
+	}
+
+	// If the spec has specified a timezone, use it
+	if strings.HasPrefix(s.Spec, "TZ=") || strings.HasPrefix(s.Spec, "CRON_TZ=") {
+		return schedule, nil
+	}
+
+	specSchedule, ok := schedule.(*cron.SpecSchedule)
+	// If it's not a spec schedule, like "@every 5m", timezone is not relevant
+	if !ok {
+		return schedule, nil
+	}
+
+	// Set the timezone to UTC
+	specSchedule.Location = time.UTC
+	return specSchedule, nil
+}
+
+func init() {
+	db.RegisterModel(new(ActionScheduleSpec))
+}
+
+func UpdateScheduleSpec(ctx context.Context, spec *ActionScheduleSpec, cols ...string) error {
+	sess := db.GetEngine(ctx).ID(spec.ID)
+	if len(cols) > 0 {
+		sess.Cols(cols...)
+	}
+	_, err := sess.Update(spec)
+	return err
+}
diff --git a/models/actions/schedule_spec_list.go b/models/actions/schedule_spec_list.go
new file mode 100644
index 0000000..4dc43f9
--- /dev/null
+++ b/models/actions/schedule_spec_list.go
@@ -0,0 +1,105 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/container"
+
+	"xorm.io/builder"
+)
+
+type SpecList []*ActionScheduleSpec
+
+func (specs SpecList) GetScheduleIDs() []int64 {
+	return container.FilterSlice(specs, func(spec *ActionScheduleSpec) (int64, bool) {
+		return spec.ScheduleID, true
+	})
+}
+
+func (specs SpecList) LoadSchedules(ctx context.Context) error {
+	if len(specs) == 0 {
+		return nil
+	}
+
+	scheduleIDs := specs.GetScheduleIDs()
+	schedules, err := GetSchedulesMapByIDs(ctx, scheduleIDs)
+	if err != nil {
+		return err
+	}
+	for _, spec := range specs {
+		spec.Schedule = schedules[spec.ScheduleID]
+	}
+
+	repoIDs := specs.GetRepoIDs()
+	repos, err := GetReposMapByIDs(ctx, repoIDs)
+	if err != nil {
+		return err
+	}
+	for _, spec := range specs {
+		spec.Repo = repos[spec.RepoID]
+	}
+
+	return nil
+}
+
+func (specs SpecList) GetRepoIDs() []int64 {
+	return container.FilterSlice(specs, func(spec *ActionScheduleSpec) (int64, bool) {
+		return spec.RepoID, true
+	})
+}
+
+func (specs SpecList) LoadRepos(ctx context.Context) error {
+	if len(specs) == 0 {
+		return nil
+	}
+
+	repoIDs := specs.GetRepoIDs()
+	repos, err := repo_model.GetRepositoriesMapByIDs(ctx, repoIDs)
+	if err != nil {
+		return err
+	}
+	for _, spec := range specs {
+		spec.Repo = repos[spec.RepoID]
+	}
+	return nil
+}
+
+type FindSpecOptions struct {
+	db.ListOptions
+	RepoID int64
+	Next   int64
+}
+
+func (opts FindSpecOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+
+	if opts.Next > 0 {
+		cond = cond.And(builder.Lte{"next": opts.Next})
+	}
+
+	return cond
+}
+
+func (opts FindSpecOptions) ToOrders() string {
+	return "`id` DESC"
+}
+
+func FindSpecs(ctx context.Context, opts FindSpecOptions) (SpecList, int64, error) {
+	specs, total, err := db.FindAndCount[ActionScheduleSpec](ctx, opts)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	if err := SpecList(specs).LoadSchedules(ctx); err != nil {
+		return nil, 0, err
+	}
+	return specs, total, nil
+}
diff --git a/models/actions/schedule_spec_test.go b/models/actions/schedule_spec_test.go
new file mode 100644
index 0000000..0c26fce
--- /dev/null
+++ b/models/actions/schedule_spec_test.go
@@ -0,0 +1,71 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestActionScheduleSpec_Parse(t *testing.T) {
+	// Mock the local timezone is not UTC
+	local := time.Local
+	tz, err := time.LoadLocation("Asia/Shanghai")
+	require.NoError(t, err)
+	defer func() {
+		time.Local = local
+	}()
+	time.Local = tz
+
+	now, err := time.Parse(time.RFC3339, "2024-07-31T15:47:55+08:00")
+	require.NoError(t, err)
+
+	tests := []struct {
+		name    string
+		spec    string
+		want    string
+		wantErr assert.ErrorAssertionFunc
+	}{
+		{
+			name:    "regular",
+			spec:    "0 10 * * *",
+			want:    "2024-07-31T10:00:00Z",
+			wantErr: assert.NoError,
+		},
+		{
+			name:    "invalid",
+			spec:    "0 10 * *",
+			want:    "",
+			wantErr: assert.Error,
+		},
+		{
+			name:    "with timezone",
+			spec:    "TZ=America/New_York 0 10 * * *",
+			want:    "2024-07-31T14:00:00Z",
+			wantErr: assert.NoError,
+		},
+		{
+			name:    "timezone irrelevant",
+			spec:    "@every 5m",
+			want:    "2024-07-31T07:52:55Z",
+			wantErr: assert.NoError,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			s := &ActionScheduleSpec{
+				Spec: tt.spec,
+			}
+			got, err := s.Parse()
+			tt.wantErr(t, err)
+
+			if err == nil {
+				assert.Equal(t, tt.want, got.Next(now).UTC().Format(time.RFC3339))
+			}
+		})
+	}
+}
diff --git a/models/actions/status.go b/models/actions/status.go
new file mode 100644
index 0000000..eda2234
--- /dev/null
+++ b/models/actions/status.go
@@ -0,0 +1,104 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"code.gitea.io/gitea/modules/translation"
+
+	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+)
+
+// Status represents the status of ActionRun, ActionRunJob, ActionTask, or ActionTaskStep
+type Status int
+
+const (
+	StatusUnknown   Status = iota // 0, consistent with runnerv1.Result_RESULT_UNSPECIFIED
+	StatusSuccess                 // 1, consistent with runnerv1.Result_RESULT_SUCCESS
+	StatusFailure                 // 2, consistent with runnerv1.Result_RESULT_FAILURE
+	StatusCancelled               // 3, consistent with runnerv1.Result_RESULT_CANCELLED
+	StatusSkipped                 // 4, consistent with runnerv1.Result_RESULT_SKIPPED
+	StatusWaiting                 // 5, isn't a runnerv1.Result
+	StatusRunning                 // 6, isn't a runnerv1.Result
+	StatusBlocked                 // 7, isn't a runnerv1.Result
+)
+
+var statusNames = map[Status]string{
+	StatusUnknown:   "unknown",
+	StatusWaiting:   "waiting",
+	StatusRunning:   "running",
+	StatusSuccess:   "success",
+	StatusFailure:   "failure",
+	StatusCancelled: "cancelled",
+	StatusSkipped:   "skipped",
+	StatusBlocked:   "blocked",
+}
+
+// String returns the string name of the Status
+func (s Status) String() string {
+	return statusNames[s]
+}
+
+// LocaleString returns the locale string name of the Status
+func (s Status) LocaleString(lang translation.Locale) string {
+	return lang.TrString("actions.status." + s.String())
+}
+
+// IsDone returns whether the Status is final
+func (s Status) IsDone() bool {
+	return s.In(StatusSuccess, StatusFailure, StatusCancelled, StatusSkipped)
+}
+
+// HasRun returns whether the Status is a result of running
+func (s Status) HasRun() bool {
+	return s.In(StatusSuccess, StatusFailure)
+}
+
+func (s Status) IsUnknown() bool {
+	return s == StatusUnknown
+}
+
+func (s Status) IsSuccess() bool {
+	return s == StatusSuccess
+}
+
+func (s Status) IsFailure() bool {
+	return s == StatusFailure
+}
+
+func (s Status) IsCancelled() bool {
+	return s == StatusCancelled
+}
+
+func (s Status) IsSkipped() bool {
+	return s == StatusSkipped
+}
+
+func (s Status) IsWaiting() bool {
+	return s == StatusWaiting
+}
+
+func (s Status) IsRunning() bool {
+	return s == StatusRunning
+}
+
+func (s Status) IsBlocked() bool {
+	return s == StatusBlocked
+}
+
+// In returns whether s is one of the given statuses
+func (s Status) In(statuses ...Status) bool {
+	for _, v := range statuses {
+		if s == v {
+			return true
+		}
+	}
+	return false
+}
+
+func (s Status) AsResult() runnerv1.Result {
+	if s.IsDone() {
+		return runnerv1.Result(s)
+	}
+	return runnerv1.Result_RESULT_UNSPECIFIED
+}
diff --git a/models/actions/task.go b/models/actions/task.go
new file mode 100644
index 0000000..8d41a63
--- /dev/null
+++ b/models/actions/task.go
@@ -0,0 +1,527 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"crypto/subtle"
+	"fmt"
+	"time"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	runnerv1 "code.gitea.io/actions-proto-go/runner/v1"
+	lru "github.com/hashicorp/golang-lru/v2"
+	"github.com/nektos/act/pkg/jobparser"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"xorm.io/builder"
+)
+
+// ActionTask represents a distribution of job
+type ActionTask struct {
+	ID       int64
+	JobID    int64
+	Job      *ActionRunJob     `xorm:"-"`
+	Steps    []*ActionTaskStep `xorm:"-"`
+	Attempt  int64
+	RunnerID int64              `xorm:"index"`
+	Status   Status             `xorm:"index"`
+	Started  timeutil.TimeStamp `xorm:"index"`
+	Stopped  timeutil.TimeStamp `xorm:"index(stopped_log_expired)"`
+
+	RepoID            int64  `xorm:"index"`
+	OwnerID           int64  `xorm:"index"`
+	CommitSHA         string `xorm:"index"`
+	IsForkPullRequest bool
+
+	Token          string `xorm:"-"`
+	TokenHash      string `xorm:"UNIQUE"` // sha256 of token
+	TokenSalt      string
+	TokenLastEight string `xorm:"index token_last_eight"`
+
+	LogFilename  string     // file name of log
+	LogInStorage bool       // read log from database or from storage
+	LogLength    int64      // lines count
+	LogSize      int64      // blob size
+	LogIndexes   LogIndexes `xorm:"LONGBLOB"`                   // line number to offset
+	LogExpired   bool       `xorm:"index(stopped_log_expired)"` // files that are too old will be deleted
+
+	Created timeutil.TimeStamp `xorm:"created"`
+	Updated timeutil.TimeStamp `xorm:"updated index"`
+}
+
+var successfulTokenTaskCache *lru.Cache[string, any]
+
+func init() {
+	db.RegisterModel(new(ActionTask), func() error {
+		if setting.SuccessfulTokensCacheSize > 0 {
+			var err error
+			successfulTokenTaskCache, err = lru.New[string, any](setting.SuccessfulTokensCacheSize)
+			if err != nil {
+				return fmt.Errorf("unable to allocate Task cache: %v", err)
+			}
+		} else {
+			successfulTokenTaskCache = nil
+		}
+		return nil
+	})
+}
+
+func (task *ActionTask) Duration() time.Duration {
+	return calculateDuration(task.Started, task.Stopped, task.Status)
+}
+
+func (task *ActionTask) IsStopped() bool {
+	return task.Stopped > 0
+}
+
+func (task *ActionTask) GetRunLink() string {
+	if task.Job == nil || task.Job.Run == nil {
+		return ""
+	}
+	return task.Job.Run.Link()
+}
+
+func (task *ActionTask) GetCommitLink() string {
+	if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
+		return ""
+	}
+	return task.Job.Run.Repo.CommitLink(task.CommitSHA)
+}
+
+func (task *ActionTask) GetRepoName() string {
+	if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
+		return ""
+	}
+	return task.Job.Run.Repo.FullName()
+}
+
+func (task *ActionTask) GetRepoLink() string {
+	if task.Job == nil || task.Job.Run == nil || task.Job.Run.Repo == nil {
+		return ""
+	}
+	return task.Job.Run.Repo.Link()
+}
+
+func (task *ActionTask) LoadJob(ctx context.Context) error {
+	if task.Job == nil {
+		job, err := GetRunJobByID(ctx, task.JobID)
+		if err != nil {
+			return err
+		}
+		task.Job = job
+	}
+	return nil
+}
+
+// LoadAttributes load Job Steps if not loaded
+func (task *ActionTask) LoadAttributes(ctx context.Context) error {
+	if task == nil {
+		return nil
+	}
+	if err := task.LoadJob(ctx); err != nil {
+		return err
+	}
+
+	if err := task.Job.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	if task.Steps == nil { // be careful, an empty slice (not nil) also means loaded
+		steps, err := GetTaskStepsByTaskID(ctx, task.ID)
+		if err != nil {
+			return err
+		}
+		task.Steps = steps
+	}
+
+	return nil
+}
+
+func (task *ActionTask) GenerateToken() (err error) {
+	task.Token, task.TokenSalt, task.TokenHash, task.TokenLastEight, err = generateSaltedToken()
+	return err
+}
+
+func GetTaskByID(ctx context.Context, id int64) (*ActionTask, error) {
+	var task ActionTask
+	has, err := db.GetEngine(ctx).Where("id=?", id).Get(&task)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("task with id %d: %w", id, util.ErrNotExist)
+	}
+
+	return &task, nil
+}
+
+func GetRunningTaskByToken(ctx context.Context, token string) (*ActionTask, error) {
+	errNotExist := fmt.Errorf("task with token %q: %w", token, util.ErrNotExist)
+	if token == "" {
+		return nil, errNotExist
+	}
+	// A token is defined as being SHA1 sum these are 40 hexadecimal bytes long
+	if len(token) != 40 {
+		return nil, errNotExist
+	}
+	for _, x := range []byte(token) {
+		if x < '0' || (x > '9' && x < 'a') || x > 'f' {
+			return nil, errNotExist
+		}
+	}
+
+	lastEight := token[len(token)-8:]
+
+	if id := getTaskIDFromCache(token); id > 0 {
+		task := &ActionTask{
+			TokenLastEight: lastEight,
+		}
+		// Re-get the task from the db in case it has been deleted in the intervening period
+		has, err := db.GetEngine(ctx).ID(id).Get(task)
+		if err != nil {
+			return nil, err
+		}
+		if has {
+			return task, nil
+		}
+		successfulTokenTaskCache.Remove(token)
+	}
+
+	var tasks []*ActionTask
+	err := db.GetEngine(ctx).Where("token_last_eight = ? AND status = ?", lastEight, StatusRunning).Find(&tasks)
+	if err != nil {
+		return nil, err
+	} else if len(tasks) == 0 {
+		return nil, errNotExist
+	}
+
+	for _, t := range tasks {
+		tempHash := auth_model.HashToken(token, t.TokenSalt)
+		if subtle.ConstantTimeCompare([]byte(t.TokenHash), []byte(tempHash)) == 1 {
+			if successfulTokenTaskCache != nil {
+				successfulTokenTaskCache.Add(token, t.ID)
+			}
+			return t, nil
+		}
+	}
+	return nil, errNotExist
+}
+
+func CreateTaskForRunner(ctx context.Context, runner *ActionRunner) (*ActionTask, bool, error) {
+	ctx, commiter, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, false, err
+	}
+	defer commiter.Close()
+
+	e := db.GetEngine(ctx)
+
+	jobCond := builder.NewCond()
+	if runner.RepoID != 0 {
+		jobCond = builder.Eq{"repo_id": runner.RepoID}
+	} else if runner.OwnerID != 0 {
+		jobCond = builder.In("repo_id", builder.Select("`repository`.id").From("repository").
+			Join("INNER", "repo_unit", "`repository`.id = `repo_unit`.repo_id").
+			Where(builder.Eq{"`repository`.owner_id": runner.OwnerID, "`repo_unit`.type": unit.TypeActions}))
+	}
+	if jobCond.IsValid() {
+		jobCond = builder.In("run_id", builder.Select("id").From("action_run").Where(jobCond))
+	}
+
+	var jobs []*ActionRunJob
+	if err := e.Where("task_id=? AND status=?", 0, StatusWaiting).And(jobCond).Asc("updated", "id").Find(&jobs); err != nil {
+		return nil, false, err
+	}
+
+	// TODO: a more efficient way to filter labels
+	var job *ActionRunJob
+	log.Trace("runner labels: %v", runner.AgentLabels)
+	for _, v := range jobs {
+		if isSubset(runner.AgentLabels, v.RunsOn) {
+			job = v
+			break
+		}
+	}
+	if job == nil {
+		return nil, false, nil
+	}
+	if err := job.LoadAttributes(ctx); err != nil {
+		return nil, false, err
+	}
+
+	now := timeutil.TimeStampNow()
+	job.Attempt++
+	job.Started = now
+	job.Status = StatusRunning
+
+	task := &ActionTask{
+		JobID:             job.ID,
+		Attempt:           job.Attempt,
+		RunnerID:          runner.ID,
+		Started:           now,
+		Status:            StatusRunning,
+		RepoID:            job.RepoID,
+		OwnerID:           job.OwnerID,
+		CommitSHA:         job.CommitSHA,
+		IsForkPullRequest: job.IsForkPullRequest,
+	}
+	if err := task.GenerateToken(); err != nil {
+		return nil, false, err
+	}
+
+	var workflowJob *jobparser.Job
+	if gots, err := jobparser.Parse(job.WorkflowPayload); err != nil {
+		return nil, false, fmt.Errorf("parse workflow of job %d: %w", job.ID, err)
+	} else if len(gots) != 1 {
+		return nil, false, fmt.Errorf("workflow of job %d: not single workflow", job.ID)
+	} else { //nolint:revive
+		_, workflowJob = gots[0].Job()
+	}
+
+	if _, err := e.Insert(task); err != nil {
+		return nil, false, err
+	}
+
+	task.LogFilename = logFileName(job.Run.Repo.FullName(), task.ID)
+	if err := UpdateTask(ctx, task, "log_filename"); err != nil {
+		return nil, false, err
+	}
+
+	if len(workflowJob.Steps) > 0 {
+		steps := make([]*ActionTaskStep, len(workflowJob.Steps))
+		for i, v := range workflowJob.Steps {
+			name, _ := util.SplitStringAtByteN(v.String(), 255)
+			steps[i] = &ActionTaskStep{
+				Name:   name,
+				TaskID: task.ID,
+				Index:  int64(i),
+				RepoID: task.RepoID,
+				Status: StatusWaiting,
+			}
+		}
+		if _, err := e.Insert(steps); err != nil {
+			return nil, false, err
+		}
+		task.Steps = steps
+	}
+
+	job.TaskID = task.ID
+	if n, err := UpdateRunJob(ctx, job, builder.Eq{"task_id": 0}); err != nil {
+		return nil, false, err
+	} else if n != 1 {
+		return nil, false, nil
+	}
+
+	task.Job = job
+
+	if err := commiter.Commit(); err != nil {
+		return nil, false, err
+	}
+
+	return task, true, nil
+}
+
+func UpdateTask(ctx context.Context, task *ActionTask, cols ...string) error {
+	sess := db.GetEngine(ctx).ID(task.ID)
+	if len(cols) > 0 {
+		sess.Cols(cols...)
+	}
+	_, err := sess.Update(task)
+	return err
+}
+
+// UpdateTaskByState updates the task by the state.
+// It will always update the task if the state is not final, even there is no change.
+// So it will update ActionTask.Updated to avoid the task being judged as a zombie task.
+func UpdateTaskByState(ctx context.Context, state *runnerv1.TaskState) (*ActionTask, error) {
+	stepStates := map[int64]*runnerv1.StepState{}
+	for _, v := range state.Steps {
+		stepStates[v.Id] = v
+	}
+
+	ctx, commiter, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer commiter.Close()
+
+	e := db.GetEngine(ctx)
+
+	task := &ActionTask{}
+	if has, err := e.ID(state.Id).Get(task); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, util.ErrNotExist
+	}
+
+	if task.Status.IsDone() {
+		// the state is final, do nothing
+		return task, nil
+	}
+
+	// state.Result is not unspecified means the task is finished
+	if state.Result != runnerv1.Result_RESULT_UNSPECIFIED {
+		task.Status = Status(state.Result)
+		task.Stopped = timeutil.TimeStamp(state.StoppedAt.AsTime().Unix())
+		if err := UpdateTask(ctx, task, "status", "stopped"); err != nil {
+			return nil, err
+		}
+		if _, err := UpdateRunJob(ctx, &ActionRunJob{
+			ID:      task.JobID,
+			Status:  task.Status,
+			Stopped: task.Stopped,
+		}, nil); err != nil {
+			return nil, err
+		}
+	} else {
+		// Force update ActionTask.Updated to avoid the task being judged as a zombie task
+		task.Updated = timeutil.TimeStampNow()
+		if err := UpdateTask(ctx, task, "updated"); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := task.LoadAttributes(ctx); err != nil {
+		return nil, err
+	}
+
+	for _, step := range task.Steps {
+		var result runnerv1.Result
+		if v, ok := stepStates[step.Index]; ok {
+			result = v.Result
+			step.LogIndex = v.LogIndex
+			step.LogLength = v.LogLength
+			step.Started = convertTimestamp(v.StartedAt)
+			step.Stopped = convertTimestamp(v.StoppedAt)
+		}
+		if result != runnerv1.Result_RESULT_UNSPECIFIED {
+			step.Status = Status(result)
+		} else if step.Started != 0 {
+			step.Status = StatusRunning
+		}
+		if _, err := e.ID(step.ID).Update(step); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := commiter.Commit(); err != nil {
+		return nil, err
+	}
+
+	return task, nil
+}
+
+func StopTask(ctx context.Context, taskID int64, status Status) error {
+	if !status.IsDone() {
+		return fmt.Errorf("cannot stop task with status %v", status)
+	}
+	e := db.GetEngine(ctx)
+
+	task := &ActionTask{}
+	if has, err := e.ID(taskID).Get(task); err != nil {
+		return err
+	} else if !has {
+		return util.ErrNotExist
+	}
+	if task.Status.IsDone() {
+		return nil
+	}
+
+	now := timeutil.TimeStampNow()
+	task.Status = status
+	task.Stopped = now
+	if _, err := UpdateRunJob(ctx, &ActionRunJob{
+		ID:      task.JobID,
+		Status:  task.Status,
+		Stopped: task.Stopped,
+	}, nil); err != nil {
+		return err
+	}
+
+	if err := UpdateTask(ctx, task, "status", "stopped"); err != nil {
+		return err
+	}
+
+	if err := task.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	for _, step := range task.Steps {
+		if !step.Status.IsDone() {
+			step.Status = status
+			if step.Started == 0 {
+				step.Started = now
+			}
+			step.Stopped = now
+		}
+		if _, err := e.ID(step.ID).Update(step); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func FindOldTasksToExpire(ctx context.Context, olderThan timeutil.TimeStamp, limit int) ([]*ActionTask, error) {
+	e := db.GetEngine(ctx)
+
+	tasks := make([]*ActionTask, 0, limit)
+	// Check "stopped > 0" to avoid deleting tasks that are still running
+	return tasks, e.Where("stopped > 0 AND stopped < ? AND log_expired = ?", olderThan, false).
+		Limit(limit).
+		Find(&tasks)
+}
+
+func isSubset(set, subset []string) bool {
+	m := make(container.Set[string], len(set))
+	for _, v := range set {
+		m.Add(v)
+	}
+
+	for _, v := range subset {
+		if !m.Contains(v) {
+			return false
+		}
+	}
+	return true
+}
+
+func convertTimestamp(timestamp *timestamppb.Timestamp) timeutil.TimeStamp {
+	if timestamp.GetSeconds() == 0 && timestamp.GetNanos() == 0 {
+		return timeutil.TimeStamp(0)
+	}
+	return timeutil.TimeStamp(timestamp.AsTime().Unix())
+}
+
+func logFileName(repoFullName string, taskID int64) string {
+	ret := fmt.Sprintf("%s/%02x/%d.log", repoFullName, taskID%256, taskID)
+
+	if setting.Actions.LogCompression.IsZstd() {
+		ret += ".zst"
+	}
+
+	return ret
+}
+
+func getTaskIDFromCache(token string) int64 {
+	if successfulTokenTaskCache == nil {
+		return 0
+	}
+	tInterface, ok := successfulTokenTaskCache.Get(token)
+	if !ok {
+		return 0
+	}
+	t, ok := tInterface.(int64)
+	if !ok {
+		return 0
+	}
+	return t
+}
diff --git a/models/actions/task_list.go b/models/actions/task_list.go
new file mode 100644
index 0000000..df4b43c
--- /dev/null
+++ b/models/actions/task_list.go
@@ -0,0 +1,87 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+type TaskList []*ActionTask
+
+func (tasks TaskList) GetJobIDs() []int64 {
+	return container.FilterSlice(tasks, func(t *ActionTask) (int64, bool) {
+		return t.JobID, t.JobID != 0
+	})
+}
+
+func (tasks TaskList) LoadJobs(ctx context.Context) error {
+	jobIDs := tasks.GetJobIDs()
+	jobs := make(map[int64]*ActionRunJob, len(jobIDs))
+	if err := db.GetEngine(ctx).In("id", jobIDs).Find(&jobs); err != nil {
+		return err
+	}
+	for _, t := range tasks {
+		if t.JobID > 0 && t.Job == nil {
+			t.Job = jobs[t.JobID]
+		}
+	}
+
+	// TODO: Replace with "ActionJobList(maps.Values(jobs))" once available
+	var jobsList ActionJobList = make([]*ActionRunJob, 0, len(jobs))
+	for _, j := range jobs {
+		jobsList = append(jobsList, j)
+	}
+	return jobsList.LoadAttributes(ctx, true)
+}
+
+func (tasks TaskList) LoadAttributes(ctx context.Context) error {
+	return tasks.LoadJobs(ctx)
+}
+
+type FindTaskOptions struct {
+	db.ListOptions
+	RepoID        int64
+	OwnerID       int64
+	CommitSHA     string
+	Status        Status
+	UpdatedBefore timeutil.TimeStamp
+	StartedBefore timeutil.TimeStamp
+	RunnerID      int64
+}
+
+func (opts FindTaskOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+	if opts.CommitSHA != "" {
+		cond = cond.And(builder.Eq{"commit_sha": opts.CommitSHA})
+	}
+	if opts.Status > StatusUnknown {
+		cond = cond.And(builder.Eq{"status": opts.Status})
+	}
+	if opts.UpdatedBefore > 0 {
+		cond = cond.And(builder.Lt{"updated": opts.UpdatedBefore})
+	}
+	if opts.StartedBefore > 0 {
+		cond = cond.And(builder.Lt{"started": opts.StartedBefore})
+	}
+	if opts.RunnerID > 0 {
+		cond = cond.And(builder.Eq{"runner_id": opts.RunnerID})
+	}
+	return cond
+}
+
+func (opts FindTaskOptions) ToOrders() string {
+	return "`id` DESC"
+}
diff --git a/models/actions/task_output.go b/models/actions/task_output.go
new file mode 100644
index 0000000..eab5b93
--- /dev/null
+++ b/models/actions/task_output.go
@@ -0,0 +1,55 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+// ActionTaskOutput represents an output of ActionTask.
+// So the outputs are bound to a task, that means when a completed job has been rerun,
+// the outputs of the job will be reset because the task is new.
+// It's by design, to avoid the outputs of the old task to be mixed with the new task.
+type ActionTaskOutput struct {
+	ID          int64
+	TaskID      int64  `xorm:"INDEX UNIQUE(task_id_output_key)"`
+	OutputKey   string `xorm:"VARCHAR(255) UNIQUE(task_id_output_key)"`
+	OutputValue string `xorm:"MEDIUMTEXT"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionTaskOutput))
+}
+
+// FindTaskOutputByTaskID returns the outputs of the task.
+func FindTaskOutputByTaskID(ctx context.Context, taskID int64) ([]*ActionTaskOutput, error) {
+	var outputs []*ActionTaskOutput
+	return outputs, db.GetEngine(ctx).Where("task_id=?", taskID).Find(&outputs)
+}
+
+// FindTaskOutputKeyByTaskID returns the keys of the outputs of the task.
+func FindTaskOutputKeyByTaskID(ctx context.Context, taskID int64) ([]string, error) {
+	var keys []string
+	return keys, db.GetEngine(ctx).Table(ActionTaskOutput{}).Where("task_id=?", taskID).Cols("output_key").Find(&keys)
+}
+
+// InsertTaskOutputIfNotExist inserts a new task output if it does not exist.
+func InsertTaskOutputIfNotExist(ctx context.Context, taskID int64, key, value string) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		sess := db.GetEngine(ctx)
+		if exist, err := sess.Exist(&ActionTaskOutput{TaskID: taskID, OutputKey: key}); err != nil {
+			return err
+		} else if exist {
+			return nil
+		}
+		_, err := sess.Insert(&ActionTaskOutput{
+			TaskID:      taskID,
+			OutputKey:   key,
+			OutputValue: value,
+		})
+		return err
+	})
+}
diff --git a/models/actions/task_step.go b/models/actions/task_step.go
new file mode 100644
index 0000000..3af1fe3
--- /dev/null
+++ b/models/actions/task_step.go
@@ -0,0 +1,41 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// ActionTaskStep represents a step of ActionTask
+type ActionTaskStep struct {
+	ID        int64
+	Name      string `xorm:"VARCHAR(255)"`
+	TaskID    int64  `xorm:"index unique(task_index)"`
+	Index     int64  `xorm:"index unique(task_index)"`
+	RepoID    int64  `xorm:"index"`
+	Status    Status `xorm:"index"`
+	LogIndex  int64
+	LogLength int64
+	Started   timeutil.TimeStamp
+	Stopped   timeutil.TimeStamp
+	Created   timeutil.TimeStamp `xorm:"created"`
+	Updated   timeutil.TimeStamp `xorm:"updated"`
+}
+
+func (step *ActionTaskStep) Duration() time.Duration {
+	return calculateDuration(step.Started, step.Stopped, step.Status)
+}
+
+func init() {
+	db.RegisterModel(new(ActionTaskStep))
+}
+
+func GetTaskStepsByTaskID(ctx context.Context, taskID int64) ([]*ActionTaskStep, error) {
+	var steps []*ActionTaskStep
+	return steps, db.GetEngine(ctx).Where("task_id=?", taskID).OrderBy("`index` ASC").Find(&steps)
+}
diff --git a/models/actions/tasks_version.go b/models/actions/tasks_version.go
new file mode 100644
index 0000000..d8df353
--- /dev/null
+++ b/models/actions/tasks_version.go
@@ -0,0 +1,105 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// ActionTasksVersion
+// If both ownerID and repoID is zero, its scope is global.
+// If ownerID is not zero and repoID is zero, its scope is org (there is no user-level runner currently).
+// If ownerID is zero and repoID is not zero, its scope is repo.
+type ActionTasksVersion struct {
+	ID          int64 `xorm:"pk autoincr"`
+	OwnerID     int64 `xorm:"UNIQUE(owner_repo)"`
+	RepoID      int64 `xorm:"INDEX UNIQUE(owner_repo)"`
+	Version     int64
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionTasksVersion))
+}
+
+func GetTasksVersionByScope(ctx context.Context, ownerID, repoID int64) (int64, error) {
+	var tasksVersion ActionTasksVersion
+	has, err := db.GetEngine(ctx).Where("owner_id = ? AND repo_id = ?", ownerID, repoID).Get(&tasksVersion)
+	if err != nil {
+		return 0, err
+	} else if !has {
+		return 0, nil
+	}
+	return tasksVersion.Version, err
+}
+
+func insertTasksVersion(ctx context.Context, ownerID, repoID int64) (*ActionTasksVersion, error) {
+	tasksVersion := &ActionTasksVersion{
+		OwnerID: ownerID,
+		RepoID:  repoID,
+		Version: 1,
+	}
+	if _, err := db.GetEngine(ctx).Insert(tasksVersion); err != nil {
+		return nil, err
+	}
+	return tasksVersion, nil
+}
+
+func increaseTasksVersionByScope(ctx context.Context, ownerID, repoID int64) error {
+	result, err := db.GetEngine(ctx).Exec("UPDATE action_tasks_version SET version = version + 1 WHERE owner_id = ? AND repo_id = ?", ownerID, repoID)
+	if err != nil {
+		return err
+	}
+	affected, err := result.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if affected == 0 {
+		// if update sql does not affect any rows, the database may be broken,
+		// so re-insert the row of version data here.
+		if _, err := insertTasksVersion(ctx, ownerID, repoID); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func IncreaseTaskVersion(ctx context.Context, ownerID, repoID int64) error {
+	ctx, commiter, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer commiter.Close()
+
+	// 1. increase global
+	if err := increaseTasksVersionByScope(ctx, 0, 0); err != nil {
+		log.Error("IncreaseTasksVersionByScope(Global): %v", err)
+		return err
+	}
+
+	// 2. increase owner
+	if ownerID > 0 {
+		if err := increaseTasksVersionByScope(ctx, ownerID, 0); err != nil {
+			log.Error("IncreaseTasksVersionByScope(Owner): %v", err)
+			return err
+		}
+	}
+
+	// 3. increase repo
+	if repoID > 0 {
+		if err := increaseTasksVersionByScope(ctx, 0, repoID); err != nil {
+			log.Error("IncreaseTasksVersionByScope(Repo): %v", err)
+			return err
+		}
+	}
+
+	return commiter.Commit()
+}
diff --git a/models/actions/utils.go b/models/actions/utils.go
new file mode 100644
index 0000000..1265794
--- /dev/null
+++ b/models/actions/utils.go
@@ -0,0 +1,84 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"bytes"
+	"encoding/binary"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"time"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+func generateSaltedToken() (string, string, string, string, error) {
+	salt, err := util.CryptoRandomString(10)
+	if err != nil {
+		return "", "", "", "", err
+	}
+	buf, err := util.CryptoRandomBytes(20)
+	if err != nil {
+		return "", "", "", "", err
+	}
+	token := hex.EncodeToString(buf)
+	hash := auth_model.HashToken(token, salt)
+	return token, salt, hash, token[len(token)-8:], nil
+}
+
+/*
+LogIndexes is the index for mapping log line number to buffer offset.
+Because it uses varint encoding, it is impossible to predict its size.
+But we can make a simple estimate with an assumption that each log line has 200 byte, then:
+| lines     | file size           | index size         |
+|-----------|---------------------|--------------------|
+| 100       | 20 KiB(20000)       | 258 B(258)         |
+| 1000      | 195 KiB(200000)     | 2.9 KiB(2958)      |
+| 10000     | 1.9 MiB(2000000)    | 34 KiB(34715)      |
+| 100000    | 19 MiB(20000000)    | 386 KiB(394715)    |
+| 1000000   | 191 MiB(200000000)  | 4.1 MiB(4323626)   |
+| 10000000  | 1.9 GiB(2000000000) | 47 MiB(49323626)   |
+| 100000000 | 19 GiB(20000000000) | 490 MiB(513424280) |
+*/
+type LogIndexes []int64
+
+func (indexes *LogIndexes) FromDB(b []byte) error {
+	reader := bytes.NewReader(b)
+	for {
+		v, err := binary.ReadVarint(reader)
+		if err != nil {
+			if errors.Is(err, io.EOF) {
+				return nil
+			}
+			return fmt.Errorf("binary ReadVarint: %w", err)
+		}
+		*indexes = append(*indexes, v)
+	}
+}
+
+func (indexes *LogIndexes) ToDB() ([]byte, error) {
+	buf, i := make([]byte, binary.MaxVarintLen64*len(*indexes)), 0
+	for _, v := range *indexes {
+		n := binary.PutVarint(buf[i:], v)
+		i += n
+	}
+	return buf[:i], nil
+}
+
+var timeSince = time.Since
+
+func calculateDuration(started, stopped timeutil.TimeStamp, status Status) time.Duration {
+	if started == 0 {
+		return 0
+	}
+	s := started.AsTime()
+	if status.IsDone() {
+		return stopped.AsTime().Sub(s)
+	}
+	return timeSince(s).Truncate(time.Second)
+}
diff --git a/models/actions/utils_test.go b/models/actions/utils_test.go
new file mode 100644
index 0000000..98c048d
--- /dev/null
+++ b/models/actions/utils_test.go
@@ -0,0 +1,90 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"math"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLogIndexes_ToDB(t *testing.T) {
+	tests := []struct {
+		indexes LogIndexes
+	}{
+		{
+			indexes: []int64{1, 2, 0, -1, -2, math.MaxInt64, math.MinInt64},
+		},
+	}
+	for _, tt := range tests {
+		t.Run("", func(t *testing.T) {
+			got, err := tt.indexes.ToDB()
+			require.NoError(t, err)
+
+			indexes := LogIndexes{}
+			require.NoError(t, indexes.FromDB(got))
+
+			assert.Equal(t, tt.indexes, indexes)
+		})
+	}
+}
+
+func Test_calculateDuration(t *testing.T) {
+	oldTimeSince := timeSince
+	defer func() {
+		timeSince = oldTimeSince
+	}()
+
+	timeSince = func(t time.Time) time.Duration {
+		return timeutil.TimeStamp(1000).AsTime().Sub(t)
+	}
+	type args struct {
+		started timeutil.TimeStamp
+		stopped timeutil.TimeStamp
+		status  Status
+	}
+	tests := []struct {
+		name string
+		args args
+		want time.Duration
+	}{
+		{
+			name: "unknown",
+			args: args{
+				started: 0,
+				stopped: 0,
+				status:  StatusUnknown,
+			},
+			want: 0,
+		},
+		{
+			name: "running",
+			args: args{
+				started: 500,
+				stopped: 0,
+				status:  StatusRunning,
+			},
+			want: 500 * time.Second,
+		},
+		{
+			name: "done",
+			args: args{
+				started: 500,
+				stopped: 600,
+				status:  StatusSuccess,
+			},
+			want: 100 * time.Second,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equalf(t, tt.want, calculateDuration(tt.args.started, tt.args.stopped, tt.args.status), "calculateDuration(%v, %v, %v)", tt.args.started, tt.args.stopped, tt.args.status)
+		})
+	}
+}
diff --git a/models/actions/variable.go b/models/actions/variable.go
new file mode 100644
index 0000000..d0f917d
--- /dev/null
+++ b/models/actions/variable.go
@@ -0,0 +1,139 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+// ActionVariable represents a variable that can be used in actions
+//
+// It can be:
+//  1. global variable, OwnerID is 0 and RepoID is 0
+//  2. org/user level variable, OwnerID is org/user ID and RepoID is 0
+//  3. repo level variable, OwnerID is 0 and RepoID is repo ID
+//
+// Please note that it's not acceptable to have both OwnerID and RepoID to be non-zero,
+// or it will be complicated to find variables belonging to a specific owner.
+// For example, conditions like `OwnerID = 1` will also return variable {OwnerID: 1, RepoID: 1},
+// but it's a repo level variable, not an org/user level variable.
+// To avoid this, make it clear with {OwnerID: 0, RepoID: 1} for repo level variables.
+type ActionVariable struct {
+	ID          int64              `xorm:"pk autoincr"`
+	OwnerID     int64              `xorm:"UNIQUE(owner_repo_name)"`
+	RepoID      int64              `xorm:"INDEX UNIQUE(owner_repo_name)"`
+	Name        string             `xorm:"UNIQUE(owner_repo_name) NOT NULL"`
+	Data        string             `xorm:"LONGTEXT NOT NULL"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created NOT NULL"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ActionVariable))
+}
+
+func InsertVariable(ctx context.Context, ownerID, repoID int64, name, data string) (*ActionVariable, error) {
+	if ownerID != 0 && repoID != 0 {
+		// It's trying to create a variable that belongs to a repository, but OwnerID has been set accidentally.
+		// Remove OwnerID to avoid confusion; it's not worth returning an error here.
+		ownerID = 0
+	}
+
+	variable := &ActionVariable{
+		OwnerID: ownerID,
+		RepoID:  repoID,
+		Name:    strings.ToUpper(name),
+		Data:    data,
+	}
+	return variable, db.Insert(ctx, variable)
+}
+
+type FindVariablesOpts struct {
+	db.ListOptions
+	RepoID  int64
+	OwnerID int64 // it will be ignored if RepoID is set
+	Name    string
+}
+
+func (opts FindVariablesOpts) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	// Since we now support instance-level variables,
+	// there is no need to check for null values for `owner_id` and `repo_id`
+	cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	if opts.RepoID != 0 { // if RepoID is set
+		// ignore OwnerID and treat it as 0
+		cond = cond.And(builder.Eq{"owner_id": 0})
+	} else {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+
+	if opts.Name != "" {
+		cond = cond.And(builder.Eq{"name": strings.ToUpper(opts.Name)})
+	}
+	return cond
+}
+
+func FindVariables(ctx context.Context, opts FindVariablesOpts) ([]*ActionVariable, error) {
+	return db.Find[ActionVariable](ctx, opts)
+}
+
+func UpdateVariable(ctx context.Context, variable *ActionVariable) (bool, error) {
+	count, err := db.GetEngine(ctx).ID(variable.ID).Cols("name", "data").
+		Update(&ActionVariable{
+			Name: variable.Name,
+			Data: variable.Data,
+		})
+	return count != 0, err
+}
+
+func DeleteVariable(ctx context.Context, id int64) error {
+	if _, err := db.DeleteByID[ActionVariable](ctx, id); err != nil {
+		return err
+	}
+	return nil
+}
+
+func GetVariablesOfRun(ctx context.Context, run *ActionRun) (map[string]string, error) {
+	variables := map[string]string{}
+
+	if err := run.LoadRepo(ctx); err != nil {
+		log.Error("LoadRepo: %v", err)
+		return nil, err
+	}
+
+	// Global
+	globalVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{})
+	if err != nil {
+		log.Error("find global variables: %v", err)
+		return nil, err
+	}
+
+	// Org / User level
+	ownerVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{OwnerID: run.Repo.OwnerID})
+	if err != nil {
+		log.Error("find variables of org: %d, error: %v", run.Repo.OwnerID, err)
+		return nil, err
+	}
+
+	// Repo level
+	repoVariables, err := db.Find[ActionVariable](ctx, FindVariablesOpts{RepoID: run.RepoID})
+	if err != nil {
+		log.Error("find variables of repo: %d, error: %v", run.RepoID, err)
+		return nil, err
+	}
+
+	// Level precedence: Repo > Org / User > Global
+	for _, v := range append(globalVariables, append(ownerVariables, repoVariables...)...) {
+		variables[v.Name] = v.Data
+	}
+
+	return variables, nil
+}
diff --git a/models/activities/action.go b/models/activities/action.go
new file mode 100644
index 0000000..dd67b98
--- /dev/null
+++ b/models/activities/action.go
@@ -0,0 +1,777 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"path"
+	"slices"
+	"strconv"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/organization"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+	"xorm.io/xorm/schemas"
+)
+
+// ActionType represents the type of an action.
+type ActionType int
+
+// Possible action types.
+const (
+	ActionCreateRepo                ActionType = iota + 1 // 1
+	ActionRenameRepo                                      // 2
+	ActionStarRepo                                        // 3
+	ActionWatchRepo                                       // 4
+	ActionCommitRepo                                      // 5
+	ActionCreateIssue                                     // 6
+	ActionCreatePullRequest                               // 7
+	ActionTransferRepo                                    // 8
+	ActionPushTag                                         // 9
+	ActionCommentIssue                                    // 10
+	ActionMergePullRequest                                // 11
+	ActionCloseIssue                                      // 12
+	ActionReopenIssue                                     // 13
+	ActionClosePullRequest                                // 14
+	ActionReopenPullRequest                               // 15
+	ActionDeleteTag                                       // 16
+	ActionDeleteBranch                                    // 17
+	ActionMirrorSyncPush                                  // 18
+	ActionMirrorSyncCreate                                // 19
+	ActionMirrorSyncDelete                                // 20
+	ActionApprovePullRequest                              // 21
+	ActionRejectPullRequest                               // 22
+	ActionCommentPull                                     // 23
+	ActionPublishRelease                                  // 24
+	ActionPullReviewDismissed                             // 25
+	ActionPullRequestReadyForReview                       // 26
+	ActionAutoMergePullRequest                            // 27
+)
+
+func (at ActionType) String() string {
+	switch at {
+	case ActionCreateRepo:
+		return "create_repo"
+	case ActionRenameRepo:
+		return "rename_repo"
+	case ActionStarRepo:
+		return "star_repo"
+	case ActionWatchRepo:
+		return "watch_repo"
+	case ActionCommitRepo:
+		return "commit_repo"
+	case ActionCreateIssue:
+		return "create_issue"
+	case ActionCreatePullRequest:
+		return "create_pull_request"
+	case ActionTransferRepo:
+		return "transfer_repo"
+	case ActionPushTag:
+		return "push_tag"
+	case ActionCommentIssue:
+		return "comment_issue"
+	case ActionMergePullRequest:
+		return "merge_pull_request"
+	case ActionCloseIssue:
+		return "close_issue"
+	case ActionReopenIssue:
+		return "reopen_issue"
+	case ActionClosePullRequest:
+		return "close_pull_request"
+	case ActionReopenPullRequest:
+		return "reopen_pull_request"
+	case ActionDeleteTag:
+		return "delete_tag"
+	case ActionDeleteBranch:
+		return "delete_branch"
+	case ActionMirrorSyncPush:
+		return "mirror_sync_push"
+	case ActionMirrorSyncCreate:
+		return "mirror_sync_create"
+	case ActionMirrorSyncDelete:
+		return "mirror_sync_delete"
+	case ActionApprovePullRequest:
+		return "approve_pull_request"
+	case ActionRejectPullRequest:
+		return "reject_pull_request"
+	case ActionCommentPull:
+		return "comment_pull"
+	case ActionPublishRelease:
+		return "publish_release"
+	case ActionPullReviewDismissed:
+		return "pull_review_dismissed"
+	case ActionPullRequestReadyForReview:
+		return "pull_request_ready_for_review"
+	case ActionAutoMergePullRequest:
+		return "auto_merge_pull_request"
+	default:
+		return "action-" + strconv.Itoa(int(at))
+	}
+}
+
+func (at ActionType) InActions(actions ...string) bool {
+	for _, action := range actions {
+		if action == at.String() {
+			return true
+		}
+	}
+	return false
+}
+
+// Action represents user operation type and other information to
+// repository. It implemented interface base.Actioner so that can be
+// used in template render.
+type Action struct {
+	ID          int64 `xorm:"pk autoincr"`
+	UserID      int64 `xorm:"INDEX"` // Receiver user id.
+	OpType      ActionType
+	ActUserID   int64            // Action user id.
+	ActUser     *user_model.User `xorm:"-"`
+	RepoID      int64
+	Repo        *repo_model.Repository `xorm:"-"`
+	CommentID   int64                  `xorm:"INDEX"`
+	Comment     *issues_model.Comment  `xorm:"-"`
+	Issue       *issues_model.Issue    `xorm:"-"` // get the issue id from content
+	IsDeleted   bool                   `xorm:"NOT NULL DEFAULT false"`
+	RefName     string
+	IsPrivate   bool               `xorm:"NOT NULL DEFAULT false"`
+	Content     string             `xorm:"TEXT"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+func init() {
+	db.RegisterModel(new(Action))
+}
+
+// TableIndices implements xorm's TableIndices interface
+func (a *Action) TableIndices() []*schemas.Index {
+	repoIndex := schemas.NewIndex("r_u_d", schemas.IndexType)
+	repoIndex.AddColumn("repo_id", "user_id", "is_deleted")
+
+	actUserIndex := schemas.NewIndex("au_r_c_u_d", schemas.IndexType)
+	actUserIndex.AddColumn("act_user_id", "repo_id", "created_unix", "user_id", "is_deleted")
+
+	cudIndex := schemas.NewIndex("c_u_d", schemas.IndexType)
+	cudIndex.AddColumn("created_unix", "user_id", "is_deleted")
+
+	indices := []*schemas.Index{actUserIndex, repoIndex, cudIndex}
+
+	return indices
+}
+
+// GetOpType gets the ActionType of this action.
+func (a *Action) GetOpType() ActionType {
+	return a.OpType
+}
+
+// LoadActUser loads a.ActUser
+func (a *Action) LoadActUser(ctx context.Context) {
+	if a.ActUser != nil {
+		return
+	}
+	var err error
+	a.ActUser, err = user_model.GetUserByID(ctx, a.ActUserID)
+	if err == nil {
+		return
+	} else if user_model.IsErrUserNotExist(err) {
+		a.ActUser = user_model.NewGhostUser()
+	} else {
+		log.Error("GetUserByID(%d): %v", a.ActUserID, err)
+	}
+}
+
+func (a *Action) loadRepo(ctx context.Context) {
+	if a.Repo != nil {
+		return
+	}
+	var err error
+	a.Repo, err = repo_model.GetRepositoryByID(ctx, a.RepoID)
+	if err != nil {
+		log.Error("repo_model.GetRepositoryByID(%d): %v", a.RepoID, err)
+	}
+}
+
+// GetActFullName gets the action's user full name.
+func (a *Action) GetActFullName(ctx context.Context) string {
+	a.LoadActUser(ctx)
+	return a.ActUser.FullName
+}
+
+// GetActUserName gets the action's user name.
+func (a *Action) GetActUserName(ctx context.Context) string {
+	a.LoadActUser(ctx)
+	return a.ActUser.Name
+}
+
+// ShortActUserName gets the action's user name trimmed to max 20
+// chars.
+func (a *Action) ShortActUserName(ctx context.Context) string {
+	return base.EllipsisString(a.GetActUserName(ctx), 20)
+}
+
+// GetActDisplayName gets the action's display name based on DEFAULT_SHOW_FULL_NAME, or falls back to the username if it is blank.
+func (a *Action) GetActDisplayName(ctx context.Context) string {
+	if setting.UI.DefaultShowFullName {
+		trimmedFullName := strings.TrimSpace(a.GetActFullName(ctx))
+		if len(trimmedFullName) > 0 {
+			return trimmedFullName
+		}
+	}
+	return a.ShortActUserName(ctx)
+}
+
+// GetActDisplayNameTitle gets the action's display name used for the title (tooltip) based on DEFAULT_SHOW_FULL_NAME
+func (a *Action) GetActDisplayNameTitle(ctx context.Context) string {
+	if setting.UI.DefaultShowFullName {
+		return a.ShortActUserName(ctx)
+	}
+	return a.GetActFullName(ctx)
+}
+
+// GetRepoUserName returns the name of the action repository owner.
+func (a *Action) GetRepoUserName(ctx context.Context) string {
+	a.loadRepo(ctx)
+	if a.Repo == nil {
+		return "(non-existing-repo)"
+	}
+	return a.Repo.OwnerName
+}
+
+// ShortRepoUserName returns the name of the action repository owner
+// trimmed to max 20 chars.
+func (a *Action) ShortRepoUserName(ctx context.Context) string {
+	return base.EllipsisString(a.GetRepoUserName(ctx), 20)
+}
+
+// GetRepoName returns the name of the action repository.
+func (a *Action) GetRepoName(ctx context.Context) string {
+	a.loadRepo(ctx)
+	if a.Repo == nil {
+		return "(non-existing-repo)"
+	}
+	return a.Repo.Name
+}
+
+// ShortRepoName returns the name of the action repository
+// trimmed to max 33 chars.
+func (a *Action) ShortRepoName(ctx context.Context) string {
+	return base.EllipsisString(a.GetRepoName(ctx), 33)
+}
+
+// GetRepoPath returns the virtual path to the action repository.
+func (a *Action) GetRepoPath(ctx context.Context) string {
+	return path.Join(a.GetRepoUserName(ctx), a.GetRepoName(ctx))
+}
+
+// ShortRepoPath returns the virtual path to the action repository
+// trimmed to max 20 + 1 + 33 chars.
+func (a *Action) ShortRepoPath(ctx context.Context) string {
+	return path.Join(a.ShortRepoUserName(ctx), a.ShortRepoName(ctx))
+}
+
+// GetRepoLink returns relative link to action repository.
+func (a *Action) GetRepoLink(ctx context.Context) string {
+	// path.Join will skip empty strings
+	return path.Join(setting.AppSubURL, "/", url.PathEscape(a.GetRepoUserName(ctx)), url.PathEscape(a.GetRepoName(ctx)))
+}
+
+// GetRepoAbsoluteLink returns the absolute link to action repository.
+func (a *Action) GetRepoAbsoluteLink(ctx context.Context) string {
+	return setting.AppURL + url.PathEscape(a.GetRepoUserName(ctx)) + "/" + url.PathEscape(a.GetRepoName(ctx))
+}
+
+func (a *Action) loadComment(ctx context.Context) (err error) {
+	if a.CommentID == 0 || a.Comment != nil {
+		return nil
+	}
+	a.Comment, err = issues_model.GetCommentByID(ctx, a.CommentID)
+	return err
+}
+
+// GetCommentHTMLURL returns link to action comment.
+func (a *Action) GetCommentHTMLURL(ctx context.Context) string {
+	if a == nil {
+		return "#"
+	}
+	_ = a.loadComment(ctx)
+	if a.Comment != nil {
+		return a.Comment.HTMLURL(ctx)
+	}
+
+	if err := a.LoadIssue(ctx); err != nil || a.Issue == nil {
+		return "#"
+	}
+	if err := a.Issue.LoadRepo(ctx); err != nil {
+		return "#"
+	}
+
+	return a.Issue.HTMLURL()
+}
+
+// GetCommentLink returns link to action comment.
+func (a *Action) GetCommentLink(ctx context.Context) string {
+	if a == nil {
+		return "#"
+	}
+	_ = a.loadComment(ctx)
+	if a.Comment != nil {
+		return a.Comment.Link(ctx)
+	}
+
+	if err := a.LoadIssue(ctx); err != nil || a.Issue == nil {
+		return "#"
+	}
+	if err := a.Issue.LoadRepo(ctx); err != nil {
+		return "#"
+	}
+
+	return a.Issue.Link()
+}
+
+// GetBranch returns the action's repository branch.
+func (a *Action) GetBranch() string {
+	return strings.TrimPrefix(a.RefName, git.BranchPrefix)
+}
+
+// GetRefLink returns the action's ref link.
+func (a *Action) GetRefLink(ctx context.Context) string {
+	return git.RefURL(a.GetRepoLink(ctx), a.RefName)
+}
+
+// GetTag returns the action's repository tag.
+func (a *Action) GetTag() string {
+	return strings.TrimPrefix(a.RefName, git.TagPrefix)
+}
+
+// GetContent returns the action's content.
+func (a *Action) GetContent() string {
+	return a.Content
+}
+
+// GetCreate returns the action creation time.
+func (a *Action) GetCreate() time.Time {
+	return a.CreatedUnix.AsTime()
+}
+
+func (a *Action) IsIssueEvent() bool {
+	return a.OpType.InActions("comment_issue", "approve_pull_request", "reject_pull_request", "comment_pull", "merge_pull_request")
+}
+
+// GetIssueInfos returns a list of associated information with the action.
+func (a *Action) GetIssueInfos() []string {
+	// make sure it always returns 3 elements, because there are some access to the a[1] and a[2] without checking the length
+	ret := strings.SplitN(a.Content, "|", 3)
+	for len(ret) < 3 {
+		ret = append(ret, "")
+	}
+	return ret
+}
+
+func (a *Action) getIssueIndex() int64 {
+	infos := a.GetIssueInfos()
+	if len(infos) == 0 {
+		return 0
+	}
+	index, _ := strconv.ParseInt(infos[0], 10, 64)
+	return index
+}
+
+func (a *Action) LoadIssue(ctx context.Context) error {
+	if a.Issue != nil {
+		return nil
+	}
+	if index := a.getIssueIndex(); index > 0 {
+		issue, err := issues_model.GetIssueByIndex(ctx, a.RepoID, index)
+		if err != nil {
+			return err
+		}
+		a.Issue = issue
+		a.Issue.Repo = a.Repo
+	}
+	return nil
+}
+
+// GetIssueTitle returns the title of first issue associated with the action.
+func (a *Action) GetIssueTitle(ctx context.Context) string {
+	if err := a.LoadIssue(ctx); err != nil {
+		log.Error("LoadIssue: %v", err)
+		return "<500 when get issue>"
+	}
+	if a.Issue == nil {
+		return "<Issue not found>"
+	}
+	return a.Issue.Title
+}
+
+// GetIssueContent returns the content of first issue associated with this action.
+func (a *Action) GetIssueContent(ctx context.Context) string {
+	if err := a.LoadIssue(ctx); err != nil {
+		log.Error("LoadIssue: %v", err)
+		return "<500 when get issue>"
+	}
+	if a.Issue == nil {
+		return "<Content not found>"
+	}
+	return a.Issue.Content
+}
+
+// GetFeedsOptions options for retrieving feeds
+type GetFeedsOptions struct {
+	db.ListOptions
+	RequestedUser        *user_model.User       // the user we want activity for
+	RequestedTeam        *organization.Team     // the team we want activity for
+	RequestedRepo        *repo_model.Repository // the repo we want activity for
+	Actor                *user_model.User       // the user viewing the activity
+	IncludePrivate       bool                   // include private actions
+	OnlyPerformedBy      bool                   // only actions performed by requested user
+	OnlyPerformedByActor bool                   // only actions performed by the original actor
+	IncludeDeleted       bool                   // include deleted actions
+	Date                 string                 // the day we want activity for: YYYY-MM-DD
+}
+
+// GetFeeds returns actions according to the provided options
+func GetFeeds(ctx context.Context, opts GetFeedsOptions) (ActionList, int64, error) {
+	if opts.RequestedUser == nil && opts.RequestedTeam == nil && opts.RequestedRepo == nil {
+		return nil, 0, fmt.Errorf("need at least one of these filters: RequestedUser, RequestedTeam, RequestedRepo")
+	}
+
+	cond, err := activityQueryCondition(ctx, opts)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	sess := db.GetEngine(ctx).Where(cond).
+		Select("`action`.*"). // this line will avoid select other joined table's columns
+		Join("INNER", "repository", "`repository`.id = `action`.repo_id")
+
+	opts.SetDefaultValues()
+	sess = db.SetSessionPagination(sess, &opts)
+
+	actions := make([]*Action, 0, opts.PageSize)
+	count, err := sess.Desc("`action`.created_unix").FindAndCount(&actions)
+	if err != nil {
+		return nil, 0, fmt.Errorf("FindAndCount: %w", err)
+	}
+
+	if err := ActionList(actions).LoadAttributes(ctx); err != nil {
+		return nil, 0, fmt.Errorf("LoadAttributes: %w", err)
+	}
+
+	return actions, count, nil
+}
+
+// ActivityReadable return whether doer can read activities of user
+func ActivityReadable(user, doer *user_model.User) bool {
+	return !user.KeepActivityPrivate ||
+		doer != nil && (doer.IsAdmin || user.ID == doer.ID)
+}
+
+func activityQueryCondition(ctx context.Context, opts GetFeedsOptions) (builder.Cond, error) {
+	cond := builder.NewCond()
+
+	if opts.OnlyPerformedByActor {
+		cond = cond.And(builder.Expr("`action`.user_id = `action`.act_user_id"))
+	}
+
+	if opts.RequestedTeam != nil && opts.RequestedUser == nil {
+		org, err := user_model.GetUserByID(ctx, opts.RequestedTeam.OrgID)
+		if err != nil {
+			return nil, err
+		}
+		opts.RequestedUser = org
+	}
+
+	// check activity visibility for actor ( similar to activityReadable() )
+	if opts.Actor == nil {
+		cond = cond.And(builder.In("act_user_id",
+			builder.Select("`user`.id").Where(
+				builder.Eq{"keep_activity_private": false, "visibility": structs.VisibleTypePublic},
+			).From("`user`"),
+		))
+	} else if !opts.Actor.IsAdmin {
+		uidCond := builder.Select("`user`.id").From("`user`").Where(
+			builder.Eq{"keep_activity_private": false}.
+				And(builder.In("visibility", structs.VisibleTypePublic, structs.VisibleTypeLimited))).
+			Or(builder.Eq{"id": opts.Actor.ID})
+
+		if opts.RequestedUser != nil {
+			if opts.RequestedUser.IsOrganization() {
+				// An organization can always see the activities whose `act_user_id` is the same as its id.
+				uidCond = uidCond.Or(builder.Eq{"id": opts.RequestedUser.ID})
+			} else {
+				// A user can always see the activities of the organizations to which the user belongs.
+				uidCond = uidCond.Or(
+					builder.Eq{"type": user_model.UserTypeOrganization}.
+						And(builder.In("`user`.id", builder.Select("org_id").
+							Where(builder.Eq{"uid": opts.RequestedUser.ID}).
+							From("team_user"))),
+				)
+			}
+		}
+
+		cond = cond.And(builder.In("act_user_id", uidCond))
+	}
+
+	// check readable repositories by doer/actor
+	if opts.Actor == nil || !opts.Actor.IsAdmin {
+		cond = cond.And(builder.In("repo_id", repo_model.AccessibleRepoIDsQuery(opts.Actor)))
+	}
+
+	if opts.RequestedRepo != nil {
+		cond = cond.And(builder.Eq{"repo_id": opts.RequestedRepo.ID})
+	}
+
+	if opts.RequestedTeam != nil {
+		env := organization.OrgFromUser(opts.RequestedUser).AccessibleTeamReposEnv(ctx, opts.RequestedTeam)
+		teamRepoIDs, err := env.RepoIDs(1, opts.RequestedUser.NumRepos)
+		if err != nil {
+			return nil, fmt.Errorf("GetTeamRepositories: %w", err)
+		}
+		cond = cond.And(builder.In("repo_id", teamRepoIDs))
+	}
+
+	if opts.RequestedUser != nil {
+		cond = cond.And(builder.Eq{"user_id": opts.RequestedUser.ID})
+
+		if opts.OnlyPerformedBy {
+			cond = cond.And(builder.Eq{"act_user_id": opts.RequestedUser.ID})
+		}
+	}
+
+	if !opts.IncludePrivate {
+		cond = cond.And(builder.Eq{"`action`.is_private": false})
+	}
+	if !opts.IncludeDeleted {
+		cond = cond.And(builder.Eq{"is_deleted": false})
+	}
+
+	if opts.Date != "" {
+		dateLow, err := time.ParseInLocation("2006-01-02", opts.Date, setting.DefaultUILocation)
+		if err != nil {
+			log.Warn("Unable to parse %s, filter not applied: %v", opts.Date, err)
+		} else {
+			dateHigh := dateLow.Add(86399000000000) // 23h59m59s
+
+			cond = cond.And(builder.Gte{"`action`.created_unix": dateLow.Unix()})
+			cond = cond.And(builder.Lte{"`action`.created_unix": dateHigh.Unix()})
+		}
+	}
+
+	return cond, nil
+}
+
+// DeleteOldActions deletes all old actions from database.
+func DeleteOldActions(ctx context.Context, olderThan time.Duration) (err error) {
+	if olderThan <= 0 {
+		return nil
+	}
+
+	_, err = db.GetEngine(ctx).Where("created_unix < ?", time.Now().Add(-olderThan).Unix()).Delete(&Action{})
+	return err
+}
+
+// NotifyWatchers creates batch of actions for every watcher.
+func NotifyWatchers(ctx context.Context, actions ...*Action) error {
+	var watchers []*repo_model.Watch
+	var repo *repo_model.Repository
+	var err error
+	var permCode []bool
+	var permIssue []bool
+	var permPR []bool
+
+	e := db.GetEngine(ctx)
+
+	for _, act := range actions {
+		repoChanged := repo == nil || repo.ID != act.RepoID
+
+		if repoChanged {
+			// Add feeds for user self and all watchers.
+			watchers, err = repo_model.GetWatchers(ctx, act.RepoID)
+			if err != nil {
+				return fmt.Errorf("get watchers: %w", err)
+			}
+
+			// Be aware that optimizing this correctly into the `GetWatchers` SQL
+			// query is for most cases less performant than doing this.
+			blockedDoerUserIDs, err := user_model.ListBlockedByUsersID(ctx, act.ActUserID)
+			if err != nil {
+				return fmt.Errorf("user_model.ListBlockedByUsersID: %w", err)
+			}
+
+			if len(blockedDoerUserIDs) > 0 {
+				excludeWatcherIDs := make(container.Set[int64], len(blockedDoerUserIDs))
+				excludeWatcherIDs.AddMultiple(blockedDoerUserIDs...)
+				watchers = slices.DeleteFunc(watchers, func(v *repo_model.Watch) bool {
+					return excludeWatcherIDs.Contains(v.UserID)
+				})
+			}
+		}
+
+		// Add feed for actioner.
+		act.UserID = act.ActUserID
+		if _, err = e.Insert(act); err != nil {
+			return fmt.Errorf("insert new actioner: %w", err)
+		}
+
+		if repoChanged {
+			act.loadRepo(ctx)
+			repo = act.Repo
+
+			// check repo owner exist.
+			if err := act.Repo.LoadOwner(ctx); err != nil {
+				return fmt.Errorf("can't get repo owner: %w", err)
+			}
+		} else if act.Repo == nil {
+			act.Repo = repo
+		}
+
+		// Add feed for organization
+		if act.Repo.Owner.IsOrganization() && act.ActUserID != act.Repo.Owner.ID {
+			act.ID = 0
+			act.UserID = act.Repo.Owner.ID
+			if err = db.Insert(ctx, act); err != nil {
+				return fmt.Errorf("insert new actioner: %w", err)
+			}
+		}
+
+		if repoChanged {
+			permCode = make([]bool, len(watchers))
+			permIssue = make([]bool, len(watchers))
+			permPR = make([]bool, len(watchers))
+			for i, watcher := range watchers {
+				user, err := user_model.GetUserByID(ctx, watcher.UserID)
+				if err != nil {
+					permCode[i] = false
+					permIssue[i] = false
+					permPR[i] = false
+					continue
+				}
+				perm, err := access_model.GetUserRepoPermission(ctx, repo, user)
+				if err != nil {
+					permCode[i] = false
+					permIssue[i] = false
+					permPR[i] = false
+					continue
+				}
+				permCode[i] = perm.CanRead(unit.TypeCode)
+				permIssue[i] = perm.CanRead(unit.TypeIssues)
+				permPR[i] = perm.CanRead(unit.TypePullRequests)
+			}
+		}
+
+		for i, watcher := range watchers {
+			if act.ActUserID == watcher.UserID {
+				continue
+			}
+			act.ID = 0
+			act.UserID = watcher.UserID
+			act.Repo.Units = nil
+
+			switch act.OpType {
+			case ActionCommitRepo, ActionPushTag, ActionDeleteTag, ActionPublishRelease, ActionDeleteBranch:
+				if !permCode[i] {
+					continue
+				}
+			case ActionCreateIssue, ActionCommentIssue, ActionCloseIssue, ActionReopenIssue:
+				if !permIssue[i] {
+					continue
+				}
+			case ActionCreatePullRequest, ActionCommentPull, ActionMergePullRequest, ActionClosePullRequest, ActionReopenPullRequest, ActionAutoMergePullRequest:
+				if !permPR[i] {
+					continue
+				}
+			}
+
+			if err = db.Insert(ctx, act); err != nil {
+				return fmt.Errorf("insert new action: %w", err)
+			}
+		}
+	}
+	return nil
+}
+
+// NotifyWatchersActions creates batch of actions for every watcher.
+func NotifyWatchersActions(ctx context.Context, acts []*Action) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	for _, act := range acts {
+		if err := NotifyWatchers(ctx, act); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
+
+// DeleteIssueActions delete all actions related with issueID
+func DeleteIssueActions(ctx context.Context, repoID, issueID, issueIndex int64) error {
+	// delete actions assigned to this issue
+	e := db.GetEngine(ctx)
+
+	// MariaDB has a performance bug: https://jira.mariadb.org/browse/MDEV-16289
+	// so here it uses "DELETE ... WHERE IN" with pre-queried IDs.
+	var lastCommentID int64
+	commentIDs := make([]int64, 0, db.DefaultMaxInSize)
+	for {
+		commentIDs = commentIDs[:0]
+		err := e.Select("`id`").Table(&issues_model.Comment{}).
+			Where(builder.Eq{"issue_id": issueID}).And("`id` > ?", lastCommentID).
+			OrderBy("`id`").Limit(db.DefaultMaxInSize).
+			Find(&commentIDs)
+		if err != nil {
+			return err
+		} else if len(commentIDs) == 0 {
+			break
+		} else if _, err = db.GetEngine(ctx).In("comment_id", commentIDs).Delete(&Action{}); err != nil {
+			return err
+		}
+		lastCommentID = commentIDs[len(commentIDs)-1]
+	}
+
+	_, err := e.Where("repo_id = ?", repoID).
+		In("op_type", ActionCreateIssue, ActionCreatePullRequest).
+		Where("content LIKE ?", strconv.FormatInt(issueIndex, 10)+"|%"). // "IssueIndex|content..."
+		Delete(&Action{})
+	return err
+}
+
+// CountActionCreatedUnixString count actions where created_unix is an empty string
+func CountActionCreatedUnixString(ctx context.Context) (int64, error) {
+	if setting.Database.Type.IsSQLite3() {
+		return db.GetEngine(ctx).Where(`created_unix = ""`).Count(new(Action))
+	}
+	return 0, nil
+}
+
+// FixActionCreatedUnixString set created_unix to zero if it is an empty string
+func FixActionCreatedUnixString(ctx context.Context) (int64, error) {
+	if setting.Database.Type.IsSQLite3() {
+		res, err := db.GetEngine(ctx).Exec(`UPDATE action SET created_unix = 0 WHERE created_unix = ""`)
+		if err != nil {
+			return 0, err
+		}
+		return res.RowsAffected()
+	}
+	return 0, nil
+}
diff --git a/models/activities/action_list.go b/models/activities/action_list.go
new file mode 100644
index 0000000..aafb7f8
--- /dev/null
+++ b/models/activities/action_list.go
@@ -0,0 +1,203 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ActionList defines a list of actions
+type ActionList []*Action
+
+func (actions ActionList) getUserIDs() []int64 {
+	return container.FilterSlice(actions, func(action *Action) (int64, bool) {
+		return action.ActUserID, true
+	})
+}
+
+func (actions ActionList) LoadActUsers(ctx context.Context) (map[int64]*user_model.User, error) {
+	if len(actions) == 0 {
+		return nil, nil
+	}
+
+	userIDs := actions.getUserIDs()
+	userMaps := make(map[int64]*user_model.User, len(userIDs))
+	err := db.GetEngine(ctx).
+		In("id", userIDs).
+		Find(&userMaps)
+	if err != nil {
+		return nil, fmt.Errorf("find user: %w", err)
+	}
+
+	for _, action := range actions {
+		action.ActUser = userMaps[action.ActUserID]
+	}
+	return userMaps, nil
+}
+
+func (actions ActionList) getRepoIDs() []int64 {
+	return container.FilterSlice(actions, func(action *Action) (int64, bool) {
+		return action.RepoID, true
+	})
+}
+
+func (actions ActionList) LoadRepositories(ctx context.Context) error {
+	if len(actions) == 0 {
+		return nil
+	}
+
+	repoIDs := actions.getRepoIDs()
+	repoMaps := make(map[int64]*repo_model.Repository, len(repoIDs))
+	err := db.GetEngine(ctx).In("id", repoIDs).Find(&repoMaps)
+	if err != nil {
+		return fmt.Errorf("find repository: %w", err)
+	}
+	for _, action := range actions {
+		action.Repo = repoMaps[action.RepoID]
+	}
+	repos := repo_model.RepositoryList(util.ValuesOfMap(repoMaps))
+	return repos.LoadUnits(ctx)
+}
+
+func (actions ActionList) loadRepoOwner(ctx context.Context, userMap map[int64]*user_model.User) (err error) {
+	if userMap == nil {
+		userMap = make(map[int64]*user_model.User)
+	}
+
+	missingUserIDs := container.FilterSlice(actions, func(action *Action) (int64, bool) {
+		if action.Repo == nil {
+			return 0, false
+		}
+		_, alreadyLoaded := userMap[action.Repo.OwnerID]
+		return action.Repo.OwnerID, !alreadyLoaded
+	})
+	if len(missingUserIDs) == 0 {
+		return nil
+	}
+
+	if err := db.GetEngine(ctx).
+		In("id", missingUserIDs).
+		Find(&userMap); err != nil {
+		return fmt.Errorf("find user: %w", err)
+	}
+
+	for _, action := range actions {
+		if action.Repo != nil {
+			action.Repo.Owner = userMap[action.Repo.OwnerID]
+		}
+	}
+
+	return nil
+}
+
+// LoadAttributes loads all attributes
+func (actions ActionList) LoadAttributes(ctx context.Context) error {
+	// the load sequence cannot be changed because of the dependencies
+	userMap, err := actions.LoadActUsers(ctx)
+	if err != nil {
+		return err
+	}
+	if err := actions.LoadRepositories(ctx); err != nil {
+		return err
+	}
+	if err := actions.loadRepoOwner(ctx, userMap); err != nil {
+		return err
+	}
+	if err := actions.LoadIssues(ctx); err != nil {
+		return err
+	}
+	return actions.LoadComments(ctx)
+}
+
+func (actions ActionList) LoadComments(ctx context.Context) error {
+	if len(actions) == 0 {
+		return nil
+	}
+
+	commentIDs := make([]int64, 0, len(actions))
+	for _, action := range actions {
+		if action.CommentID > 0 {
+			commentIDs = append(commentIDs, action.CommentID)
+		}
+	}
+	if len(commentIDs) == 0 {
+		return nil
+	}
+
+	commentsMap := make(map[int64]*issues_model.Comment, len(commentIDs))
+	if err := db.GetEngine(ctx).In("id", commentIDs).Find(&commentsMap); err != nil {
+		return fmt.Errorf("find comment: %w", err)
+	}
+
+	for _, action := range actions {
+		if action.CommentID > 0 {
+			action.Comment = commentsMap[action.CommentID]
+			if action.Comment != nil {
+				action.Comment.Issue = action.Issue
+			}
+		}
+	}
+	return nil
+}
+
+func (actions ActionList) LoadIssues(ctx context.Context) error {
+	if len(actions) == 0 {
+		return nil
+	}
+
+	conditions := builder.NewCond()
+	issueNum := 0
+	for _, action := range actions {
+		if action.IsIssueEvent() {
+			infos := action.GetIssueInfos()
+			if len(infos) == 0 {
+				continue
+			}
+			index, _ := strconv.ParseInt(infos[0], 10, 64)
+			if index > 0 {
+				conditions = conditions.Or(builder.Eq{
+					"repo_id": action.RepoID,
+					"`index`": index,
+				})
+				issueNum++
+			}
+		}
+	}
+	if !conditions.IsValid() {
+		return nil
+	}
+
+	issuesMap := make(map[string]*issues_model.Issue, issueNum)
+	issues := make([]*issues_model.Issue, 0, issueNum)
+	if err := db.GetEngine(ctx).Where(conditions).Find(&issues); err != nil {
+		return fmt.Errorf("find issue: %w", err)
+	}
+	for _, issue := range issues {
+		issuesMap[fmt.Sprintf("%d-%d", issue.RepoID, issue.Index)] = issue
+	}
+
+	for _, action := range actions {
+		if !action.IsIssueEvent() {
+			continue
+		}
+		if index := action.getIssueIndex(); index > 0 {
+			if issue, ok := issuesMap[fmt.Sprintf("%d-%d", action.RepoID, index)]; ok {
+				action.Issue = issue
+				action.Issue.Repo = action.Repo
+			}
+		}
+	}
+	return nil
+}
diff --git a/models/activities/action_test.go b/models/activities/action_test.go
new file mode 100644
index 0000000..4ce030d
--- /dev/null
+++ b/models/activities/action_test.go
@@ -0,0 +1,320 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities_test
+
+import (
+	"fmt"
+	"path"
+	"testing"
+
+	activities_model "code.gitea.io/gitea/models/activities"
+	"code.gitea.io/gitea/models/db"
+	issue_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAction_GetRepoPath(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+	action := &activities_model.Action{RepoID: repo.ID}
+	assert.Equal(t, path.Join(owner.Name, repo.Name), action.GetRepoPath(db.DefaultContext))
+}
+
+func TestAction_GetRepoLink(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+	comment := unittest.AssertExistsAndLoadBean(t, &issue_model.Comment{ID: 2})
+	action := &activities_model.Action{RepoID: repo.ID, CommentID: comment.ID}
+	setting.AppSubURL = "/suburl"
+	expected := path.Join(setting.AppSubURL, owner.Name, repo.Name)
+	assert.Equal(t, expected, action.GetRepoLink(db.DefaultContext))
+	assert.Equal(t, repo.HTMLURL(), action.GetRepoAbsoluteLink(db.DefaultContext))
+	assert.Equal(t, comment.HTMLURL(db.DefaultContext), action.GetCommentHTMLURL(db.DefaultContext))
+}
+
+func TestGetFeeds(t *testing.T) {
+	// test with an individual user
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	actions, count, err := activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedUser:   user,
+		Actor:           user,
+		IncludePrivate:  true,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
+	})
+	require.NoError(t, err)
+	if assert.Len(t, actions, 1) {
+		assert.EqualValues(t, 1, actions[0].ID)
+		assert.EqualValues(t, user.ID, actions[0].UserID)
+	}
+	assert.Equal(t, int64(1), count)
+
+	actions, count, err = activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedUser:   user,
+		Actor:           user,
+		IncludePrivate:  false,
+		OnlyPerformedBy: false,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, actions)
+	assert.Equal(t, int64(0), count)
+}
+
+func TestGetFeedsForRepos(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	privRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	pubRepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 8})
+
+	// private repo & no login
+	actions, count, err := activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedRepo:  privRepo,
+		IncludePrivate: true,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, actions)
+	assert.Equal(t, int64(0), count)
+
+	// public repo & no login
+	actions, count, err = activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedRepo:  pubRepo,
+		IncludePrivate: true,
+	})
+	require.NoError(t, err)
+	assert.Len(t, actions, 1)
+	assert.Equal(t, int64(1), count)
+
+	// private repo and login
+	actions, count, err = activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedRepo:  privRepo,
+		IncludePrivate: true,
+		Actor:          user,
+	})
+	require.NoError(t, err)
+	assert.Len(t, actions, 1)
+	assert.Equal(t, int64(1), count)
+
+	// public repo & login
+	actions, count, err = activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedRepo:  pubRepo,
+		IncludePrivate: true,
+		Actor:          user,
+	})
+	require.NoError(t, err)
+	assert.Len(t, actions, 1)
+	assert.Equal(t, int64(1), count)
+}
+
+func TestGetFeeds2(t *testing.T) {
+	// test with an organization user
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	actions, count, err := activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedUser:   org,
+		Actor:           user,
+		IncludePrivate:  true,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
+	})
+	require.NoError(t, err)
+	assert.Len(t, actions, 1)
+	if assert.Len(t, actions, 1) {
+		assert.EqualValues(t, 2, actions[0].ID)
+		assert.EqualValues(t, org.ID, actions[0].UserID)
+	}
+	assert.Equal(t, int64(1), count)
+
+	actions, count, err = activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedUser:   org,
+		Actor:           user,
+		IncludePrivate:  false,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, actions)
+	assert.Equal(t, int64(0), count)
+}
+
+func TestActivityReadable(t *testing.T) {
+	tt := []struct {
+		desc   string
+		user   *user_model.User
+		doer   *user_model.User
+		result bool
+	}{{
+		desc:   "user should see own activity",
+		user:   &user_model.User{ID: 1},
+		doer:   &user_model.User{ID: 1},
+		result: true,
+	}, {
+		desc:   "anon should see activity if public",
+		user:   &user_model.User{ID: 1},
+		result: true,
+	}, {
+		desc:   "anon should NOT see activity",
+		user:   &user_model.User{ID: 1, KeepActivityPrivate: true},
+		result: false,
+	}, {
+		desc:   "user should see own activity if private too",
+		user:   &user_model.User{ID: 1, KeepActivityPrivate: true},
+		doer:   &user_model.User{ID: 1},
+		result: true,
+	}, {
+		desc:   "other user should NOT see activity",
+		user:   &user_model.User{ID: 1, KeepActivityPrivate: true},
+		doer:   &user_model.User{ID: 2},
+		result: false,
+	}, {
+		desc:   "admin should see activity",
+		user:   &user_model.User{ID: 1, KeepActivityPrivate: true},
+		doer:   &user_model.User{ID: 2, IsAdmin: true},
+		result: true,
+	}}
+	for _, test := range tt {
+		assert.Equal(t, test.result, activities_model.ActivityReadable(test.user, test.doer), test.desc)
+	}
+}
+
+func TestNotifyWatchers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	action := &activities_model.Action{
+		ActUserID: 8,
+		RepoID:    1,
+		OpType:    activities_model.ActionStarRepo,
+	}
+	require.NoError(t, activities_model.NotifyWatchers(db.DefaultContext, action))
+
+	// One watchers are inactive, thus action is only created for user 8, 1, 4, 11
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ActUserID: action.ActUserID,
+		UserID:    8,
+		RepoID:    action.RepoID,
+		OpType:    action.OpType,
+	})
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ActUserID: action.ActUserID,
+		UserID:    1,
+		RepoID:    action.RepoID,
+		OpType:    action.OpType,
+	})
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ActUserID: action.ActUserID,
+		UserID:    4,
+		RepoID:    action.RepoID,
+		OpType:    action.OpType,
+	})
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ActUserID: action.ActUserID,
+		UserID:    11,
+		RepoID:    action.RepoID,
+		OpType:    action.OpType,
+	})
+}
+
+func TestGetFeedsCorrupted(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ID:     8,
+		RepoID: 1700,
+	})
+
+	actions, count, err := activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+		RequestedUser:  user,
+		Actor:          user,
+		IncludePrivate: true,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, actions)
+	assert.Equal(t, int64(0), count)
+}
+
+func TestConsistencyUpdateAction(t *testing.T) {
+	if !setting.Database.Type.IsSQLite3() {
+		t.Skip("Test is only for SQLite database.")
+	}
+	require.NoError(t, unittest.PrepareTestDatabase())
+	id := 8
+	unittest.AssertExistsAndLoadBean(t, &activities_model.Action{
+		ID: int64(id),
+	})
+	_, err := db.GetEngine(db.DefaultContext).Exec(`UPDATE action SET created_unix = "" WHERE id = ?`, id)
+	require.NoError(t, err)
+	actions := make([]*activities_model.Action, 0, 1)
+	//
+	// XORM returns an error when created_unix is a string
+	//
+	err = db.GetEngine(db.DefaultContext).Where("id = ?", id).Find(&actions)
+	require.ErrorContains(t, err, "type string to a int64: invalid syntax")
+
+	//
+	// Get rid of incorrectly set created_unix
+	//
+	count, err := activities_model.CountActionCreatedUnixString(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, count)
+	count, err = activities_model.FixActionCreatedUnixString(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, count)
+
+	count, err = activities_model.CountActionCreatedUnixString(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+	count, err = activities_model.FixActionCreatedUnixString(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+
+	//
+	// XORM must be happy now
+	//
+	require.NoError(t, db.GetEngine(db.DefaultContext).Where("id = ?", id).Find(&actions))
+	unittest.CheckConsistencyFor(t, &activities_model.Action{})
+}
+
+func TestDeleteIssueActions(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// load an issue
+	issue := unittest.AssertExistsAndLoadBean(t, &issue_model.Issue{ID: 4})
+	assert.NotEqualValues(t, issue.ID, issue.Index) // it needs to use different ID/Index to test the DeleteIssueActions to delete some actions by IssueIndex
+
+	// insert a comment
+	err := db.Insert(db.DefaultContext, &issue_model.Comment{Type: issue_model.CommentTypeComment, IssueID: issue.ID})
+	require.NoError(t, err)
+	comment := unittest.AssertExistsAndLoadBean(t, &issue_model.Comment{Type: issue_model.CommentTypeComment, IssueID: issue.ID})
+
+	// truncate action table and insert some actions
+	err = db.TruncateBeans(db.DefaultContext, &activities_model.Action{})
+	require.NoError(t, err)
+	err = db.Insert(db.DefaultContext, &activities_model.Action{
+		OpType:    activities_model.ActionCommentIssue,
+		CommentID: comment.ID,
+	})
+	require.NoError(t, err)
+	err = db.Insert(db.DefaultContext, &activities_model.Action{
+		OpType:  activities_model.ActionCreateIssue,
+		RepoID:  issue.RepoID,
+		Content: fmt.Sprintf("%d|content...", issue.Index),
+	})
+	require.NoError(t, err)
+
+	// assert that the actions exist, then delete them
+	unittest.AssertCount(t, &activities_model.Action{}, 2)
+	require.NoError(t, activities_model.DeleteIssueActions(db.DefaultContext, issue.RepoID, issue.ID, issue.Index))
+	unittest.AssertCount(t, &activities_model.Action{}, 0)
+}
diff --git a/models/activities/main_test.go b/models/activities/main_test.go
new file mode 100644
index 0000000..43afb84
--- /dev/null
+++ b/models/activities/main_test.go
@@ -0,0 +1,17 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/activities/notification.go b/models/activities/notification.go
new file mode 100644
index 0000000..09cc640
--- /dev/null
+++ b/models/activities/notification.go
@@ -0,0 +1,407 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"strconv"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/organization"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+type (
+	// NotificationStatus is the status of the notification (read or unread)
+	NotificationStatus uint8
+	// NotificationSource is the source of the notification (issue, PR, commit, etc)
+	NotificationSource uint8
+)
+
+const (
+	// NotificationStatusUnread represents an unread notification
+	NotificationStatusUnread NotificationStatus = iota + 1
+	// NotificationStatusRead represents a read notification
+	NotificationStatusRead
+	// NotificationStatusPinned represents a pinned notification
+	NotificationStatusPinned
+)
+
+const (
+	// NotificationSourceIssue is a notification of an issue
+	NotificationSourceIssue NotificationSource = iota + 1
+	// NotificationSourcePullRequest is a notification of a pull request
+	NotificationSourcePullRequest
+	// NotificationSourceCommit is a notification of a commit
+	NotificationSourceCommit
+	// NotificationSourceRepository is a notification for a repository
+	NotificationSourceRepository
+)
+
+// Notification represents a notification
+type Notification struct {
+	ID     int64 `xorm:"pk autoincr"`
+	UserID int64 `xorm:"INDEX NOT NULL"`
+	RepoID int64 `xorm:"INDEX NOT NULL"`
+
+	Status NotificationStatus `xorm:"SMALLINT INDEX NOT NULL"`
+	Source NotificationSource `xorm:"SMALLINT INDEX NOT NULL"`
+
+	IssueID   int64  `xorm:"INDEX NOT NULL"`
+	CommitID  string `xorm:"INDEX"`
+	CommentID int64
+
+	UpdatedBy int64 `xorm:"INDEX NOT NULL"`
+
+	Issue      *issues_model.Issue    `xorm:"-"`
+	Repository *repo_model.Repository `xorm:"-"`
+	Comment    *issues_model.Comment  `xorm:"-"`
+	User       *user_model.User       `xorm:"-"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated INDEX NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(Notification))
+}
+
+// CreateRepoTransferNotification creates  notification for the user a repository was transferred to
+func CreateRepoTransferNotification(ctx context.Context, doer, newOwner *user_model.User, repo *repo_model.Repository) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		var notify []*Notification
+
+		if newOwner.IsOrganization() {
+			users, err := organization.GetUsersWhoCanCreateOrgRepo(ctx, newOwner.ID)
+			if err != nil || len(users) == 0 {
+				return err
+			}
+			for i := range users {
+				notify = append(notify, &Notification{
+					UserID:    i,
+					RepoID:    repo.ID,
+					Status:    NotificationStatusUnread,
+					UpdatedBy: doer.ID,
+					Source:    NotificationSourceRepository,
+				})
+			}
+		} else {
+			notify = []*Notification{{
+				UserID:    newOwner.ID,
+				RepoID:    repo.ID,
+				Status:    NotificationStatusUnread,
+				UpdatedBy: doer.ID,
+				Source:    NotificationSourceRepository,
+			}}
+		}
+
+		return db.Insert(ctx, notify)
+	})
+}
+
+func createIssueNotification(ctx context.Context, userID int64, issue *issues_model.Issue, commentID, updatedByID int64) error {
+	notification := &Notification{
+		UserID:    userID,
+		RepoID:    issue.RepoID,
+		Status:    NotificationStatusUnread,
+		IssueID:   issue.ID,
+		CommentID: commentID,
+		UpdatedBy: updatedByID,
+	}
+
+	if issue.IsPull {
+		notification.Source = NotificationSourcePullRequest
+	} else {
+		notification.Source = NotificationSourceIssue
+	}
+
+	return db.Insert(ctx, notification)
+}
+
+func updateIssueNotification(ctx context.Context, userID, issueID, commentID, updatedByID int64) error {
+	notification, err := GetIssueNotification(ctx, userID, issueID)
+	if err != nil {
+		return err
+	}
+
+	// NOTICE: Only update comment id when the before notification on this issue is read, otherwise you may miss some old comments.
+	// But we need update update_by so that the notification will be reorder
+	var cols []string
+	if notification.Status == NotificationStatusRead {
+		notification.Status = NotificationStatusUnread
+		notification.CommentID = commentID
+		cols = []string{"status", "update_by", "comment_id"}
+	} else {
+		notification.UpdatedBy = updatedByID
+		cols = []string{"update_by"}
+	}
+
+	_, err = db.GetEngine(ctx).ID(notification.ID).Cols(cols...).Update(notification)
+	return err
+}
+
+// GetIssueNotification return the notification about an issue
+func GetIssueNotification(ctx context.Context, userID, issueID int64) (*Notification, error) {
+	notification := new(Notification)
+	_, err := db.GetEngine(ctx).
+		Where("user_id = ?", userID).
+		And("issue_id = ?", issueID).
+		Get(notification)
+	return notification, err
+}
+
+// LoadAttributes load Repo Issue User and Comment if not loaded
+func (n *Notification) LoadAttributes(ctx context.Context) (err error) {
+	if err = n.loadRepo(ctx); err != nil {
+		return err
+	}
+	if err = n.loadIssue(ctx); err != nil {
+		return err
+	}
+	if err = n.loadUser(ctx); err != nil {
+		return err
+	}
+	if err = n.loadComment(ctx); err != nil {
+		return err
+	}
+	return err
+}
+
+func (n *Notification) loadRepo(ctx context.Context) (err error) {
+	if n.Repository == nil {
+		n.Repository, err = repo_model.GetRepositoryByID(ctx, n.RepoID)
+		if err != nil {
+			return fmt.Errorf("getRepositoryByID [%d]: %w", n.RepoID, err)
+		}
+	}
+	return nil
+}
+
+func (n *Notification) loadIssue(ctx context.Context) (err error) {
+	if n.Issue == nil && n.IssueID != 0 {
+		n.Issue, err = issues_model.GetIssueByID(ctx, n.IssueID)
+		if err != nil {
+			return fmt.Errorf("getIssueByID [%d]: %w", n.IssueID, err)
+		}
+		return n.Issue.LoadAttributes(ctx)
+	}
+	return nil
+}
+
+func (n *Notification) loadComment(ctx context.Context) (err error) {
+	if n.Comment == nil && n.CommentID != 0 {
+		n.Comment, err = issues_model.GetCommentByID(ctx, n.CommentID)
+		if err != nil {
+			if issues_model.IsErrCommentNotExist(err) {
+				return issues_model.ErrCommentNotExist{
+					ID:      n.CommentID,
+					IssueID: n.IssueID,
+				}
+			}
+			return err
+		}
+	}
+	return nil
+}
+
+func (n *Notification) loadUser(ctx context.Context) (err error) {
+	if n.User == nil {
+		n.User, err = user_model.GetUserByID(ctx, n.UserID)
+		if err != nil {
+			return fmt.Errorf("getUserByID [%d]: %w", n.UserID, err)
+		}
+	}
+	return nil
+}
+
+// GetRepo returns the repo of the notification
+func (n *Notification) GetRepo(ctx context.Context) (*repo_model.Repository, error) {
+	return n.Repository, n.loadRepo(ctx)
+}
+
+// GetIssue returns the issue of the notification
+func (n *Notification) GetIssue(ctx context.Context) (*issues_model.Issue, error) {
+	return n.Issue, n.loadIssue(ctx)
+}
+
+// HTMLURL formats a URL-string to the notification
+func (n *Notification) HTMLURL(ctx context.Context) string {
+	switch n.Source {
+	case NotificationSourceIssue, NotificationSourcePullRequest:
+		if n.Comment != nil {
+			return n.Comment.HTMLURL(ctx)
+		}
+		return n.Issue.HTMLURL()
+	case NotificationSourceCommit:
+		return n.Repository.HTMLURL() + "/commit/" + url.PathEscape(n.CommitID)
+	case NotificationSourceRepository:
+		return n.Repository.HTMLURL()
+	}
+	return ""
+}
+
+// Link formats a relative URL-string to the notification
+func (n *Notification) Link(ctx context.Context) string {
+	switch n.Source {
+	case NotificationSourceIssue, NotificationSourcePullRequest:
+		if n.Comment != nil {
+			return n.Comment.Link(ctx)
+		}
+		return n.Issue.Link()
+	case NotificationSourceCommit:
+		return n.Repository.Link() + "/commit/" + url.PathEscape(n.CommitID)
+	case NotificationSourceRepository:
+		return n.Repository.Link()
+	}
+	return ""
+}
+
+// APIURL formats a URL-string to the notification
+func (n *Notification) APIURL() string {
+	return setting.AppURL + "api/v1/notifications/threads/" + strconv.FormatInt(n.ID, 10)
+}
+
+func notificationExists(notifications []*Notification, issueID, userID int64) bool {
+	for _, notification := range notifications {
+		if notification.IssueID == issueID && notification.UserID == userID {
+			return true
+		}
+	}
+
+	return false
+}
+
+// UserIDCount is a simple coalition of UserID and Count
+type UserIDCount struct {
+	UserID int64
+	Count  int64
+}
+
+// GetUIDsAndNotificationCounts returns the unread counts for every user between the two provided times.
+// It must return all user IDs which appear during the period, including count=0 for users who have read all.
+func GetUIDsAndNotificationCounts(ctx context.Context, since, until timeutil.TimeStamp) ([]UserIDCount, error) {
+	sql := `SELECT user_id, sum(case when status= ? then 1 else 0 end) AS count FROM notification ` +
+		`WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND ` +
+		`updated_unix < ?) GROUP BY user_id`
+	var res []UserIDCount
+	return res, db.GetEngine(ctx).SQL(sql, NotificationStatusUnread, since, until).Find(&res)
+}
+
+// SetIssueReadBy sets issue to be read by given user.
+func SetIssueReadBy(ctx context.Context, issueID, userID int64) error {
+	if err := issues_model.UpdateIssueUserByRead(ctx, userID, issueID); err != nil {
+		return err
+	}
+
+	return setIssueNotificationStatusReadIfUnread(ctx, userID, issueID)
+}
+
+func setIssueNotificationStatusReadIfUnread(ctx context.Context, userID, issueID int64) error {
+	notification, err := GetIssueNotification(ctx, userID, issueID)
+	// ignore if not exists
+	if err != nil {
+		return nil
+	}
+
+	if notification.Status != NotificationStatusUnread {
+		return nil
+	}
+
+	notification.Status = NotificationStatusRead
+
+	_, err = db.GetEngine(ctx).ID(notification.ID).Cols("status").Update(notification)
+	return err
+}
+
+// SetRepoReadBy sets repo to be visited by given user.
+func SetRepoReadBy(ctx context.Context, userID, repoID int64) error {
+	_, err := db.GetEngine(ctx).Where(builder.Eq{
+		"user_id": userID,
+		"status":  NotificationStatusUnread,
+		"source":  NotificationSourceRepository,
+		"repo_id": repoID,
+	}).Cols("status").Update(&Notification{Status: NotificationStatusRead})
+	return err
+}
+
+// SetNotificationStatus change the notification status
+func SetNotificationStatus(ctx context.Context, notificationID int64, user *user_model.User, status NotificationStatus) (*Notification, error) {
+	notification, err := GetNotificationByID(ctx, notificationID)
+	if err != nil {
+		return notification, err
+	}
+
+	if notification.UserID != user.ID {
+		return nil, fmt.Errorf("Can't change notification of another user: %d, %d", notification.UserID, user.ID)
+	}
+
+	notification.Status = status
+
+	_, err = db.GetEngine(ctx).ID(notificationID).Update(notification)
+	return notification, err
+}
+
+// GetNotificationByID return notification by ID
+func GetNotificationByID(ctx context.Context, notificationID int64) (*Notification, error) {
+	notification := new(Notification)
+	ok, err := db.GetEngine(ctx).
+		Where("id = ?", notificationID).
+		Get(notification)
+	if err != nil {
+		return nil, err
+	}
+
+	if !ok {
+		return nil, db.ErrNotExist{Resource: "notification", ID: notificationID}
+	}
+
+	return notification, nil
+}
+
+// UpdateNotificationStatuses updates the statuses of all of a user's notifications that are of the currentStatus type to the desiredStatus
+func UpdateNotificationStatuses(ctx context.Context, user *user_model.User, currentStatus, desiredStatus NotificationStatus) error {
+	n := &Notification{Status: desiredStatus, UpdatedBy: user.ID}
+	_, err := db.GetEngine(ctx).
+		Where("user_id = ? AND status = ?", user.ID, currentStatus).
+		Cols("status", "updated_by", "updated_unix").
+		Update(n)
+	return err
+}
+
+// LoadIssuePullRequests loads all issues' pull requests if possible
+func (nl NotificationList) LoadIssuePullRequests(ctx context.Context) error {
+	issues := make(map[int64]*issues_model.Issue, len(nl))
+	for _, notification := range nl {
+		if notification.Issue != nil && notification.Issue.IsPull && notification.Issue.PullRequest == nil {
+			issues[notification.Issue.ID] = notification.Issue
+		}
+	}
+
+	if len(issues) == 0 {
+		return nil
+	}
+
+	pulls, err := issues_model.GetPullRequestByIssueIDs(ctx, util.KeysOfMap(issues))
+	if err != nil {
+		return err
+	}
+
+	for _, pull := range pulls {
+		if issue := issues[pull.IssueID]; issue != nil {
+			issue.PullRequest = pull
+			issue.PullRequest.Issue = issue
+		}
+	}
+
+	return nil
+}
diff --git a/models/activities/notification_list.go b/models/activities/notification_list.go
new file mode 100644
index 0000000..32d2a5c
--- /dev/null
+++ b/models/activities/notification_list.go
@@ -0,0 +1,476 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/builder"
+)
+
+// FindNotificationOptions represent the filters for notifications. If an ID is 0 it will be ignored.
+type FindNotificationOptions struct {
+	db.ListOptions
+	UserID            int64
+	RepoID            int64
+	IssueID           int64
+	Status            []NotificationStatus
+	Source            []NotificationSource
+	UpdatedAfterUnix  int64
+	UpdatedBeforeUnix int64
+}
+
+// ToCond will convert each condition into a xorm-Cond
+func (opts FindNotificationOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.UserID != 0 {
+		cond = cond.And(builder.Eq{"notification.user_id": opts.UserID})
+	}
+	if opts.RepoID != 0 {
+		cond = cond.And(builder.Eq{"notification.repo_id": opts.RepoID})
+	}
+	if opts.IssueID != 0 {
+		cond = cond.And(builder.Eq{"notification.issue_id": opts.IssueID})
+	}
+	if len(opts.Status) > 0 {
+		if len(opts.Status) == 1 {
+			cond = cond.And(builder.Eq{"notification.status": opts.Status[0]})
+		} else {
+			cond = cond.And(builder.In("notification.status", opts.Status))
+		}
+	}
+	if len(opts.Source) > 0 {
+		cond = cond.And(builder.In("notification.source", opts.Source))
+	}
+	if opts.UpdatedAfterUnix != 0 {
+		cond = cond.And(builder.Gte{"notification.updated_unix": opts.UpdatedAfterUnix})
+	}
+	if opts.UpdatedBeforeUnix != 0 {
+		cond = cond.And(builder.Lte{"notification.updated_unix": opts.UpdatedBeforeUnix})
+	}
+	return cond
+}
+
+func (opts FindNotificationOptions) ToOrders() string {
+	return "notification.updated_unix DESC"
+}
+
+// CreateOrUpdateIssueNotifications creates an issue notification
+// for each watcher, or updates it if already exists
+// receiverID > 0 just send to receiver, else send to all watcher
+func CreateOrUpdateIssueNotifications(ctx context.Context, issueID, commentID, notificationAuthorID, receiverID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := createOrUpdateIssueNotifications(ctx, issueID, commentID, notificationAuthorID, receiverID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func createOrUpdateIssueNotifications(ctx context.Context, issueID, commentID, notificationAuthorID, receiverID int64) error {
+	// init
+	var toNotify container.Set[int64]
+	notifications, err := db.Find[Notification](ctx, FindNotificationOptions{
+		IssueID: issueID,
+	})
+	if err != nil {
+		return err
+	}
+
+	issue, err := issues_model.GetIssueByID(ctx, issueID)
+	if err != nil {
+		return err
+	}
+
+	if receiverID > 0 {
+		toNotify = make(container.Set[int64], 1)
+		toNotify.Add(receiverID)
+	} else {
+		toNotify = make(container.Set[int64], 32)
+		issueWatches, err := issues_model.GetIssueWatchersIDs(ctx, issueID, true)
+		if err != nil {
+			return err
+		}
+		toNotify.AddMultiple(issueWatches...)
+		if !(issue.IsPull && issues_model.HasWorkInProgressPrefix(issue.Title)) {
+			repoWatches, err := repo_model.GetRepoWatchersIDs(ctx, issue.RepoID)
+			if err != nil {
+				return err
+			}
+			toNotify.AddMultiple(repoWatches...)
+		}
+		issueParticipants, err := issue.GetParticipantIDsByIssue(ctx)
+		if err != nil {
+			return err
+		}
+		toNotify.AddMultiple(issueParticipants...)
+
+		// dont notify user who cause notification
+		delete(toNotify, notificationAuthorID)
+		// explicit unwatch on issue
+		issueUnWatches, err := issues_model.GetIssueWatchersIDs(ctx, issueID, false)
+		if err != nil {
+			return err
+		}
+		for _, id := range issueUnWatches {
+			toNotify.Remove(id)
+		}
+		// Remove users who have the notification author blocked.
+		blockedAuthorIDs, err := user_model.ListBlockedByUsersID(ctx, notificationAuthorID)
+		if err != nil {
+			return err
+		}
+		for _, id := range blockedAuthorIDs {
+			toNotify.Remove(id)
+		}
+	}
+
+	err = issue.LoadRepo(ctx)
+	if err != nil {
+		return err
+	}
+
+	// notify
+	for userID := range toNotify {
+		issue.Repo.Units = nil
+		user, err := user_model.GetUserByID(ctx, userID)
+		if err != nil {
+			if user_model.IsErrUserNotExist(err) {
+				continue
+			}
+
+			return err
+		}
+		if issue.IsPull && !access_model.CheckRepoUnitUser(ctx, issue.Repo, user, unit.TypePullRequests) {
+			continue
+		}
+		if !issue.IsPull && !access_model.CheckRepoUnitUser(ctx, issue.Repo, user, unit.TypeIssues) {
+			continue
+		}
+
+		if notificationExists(notifications, issue.ID, userID) {
+			if err = updateIssueNotification(ctx, userID, issue.ID, commentID, notificationAuthorID); err != nil {
+				return err
+			}
+			continue
+		}
+		if err = createIssueNotification(ctx, userID, issue, commentID, notificationAuthorID); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// NotificationList contains a list of notifications
+type NotificationList []*Notification
+
+// LoadAttributes load Repo Issue User and Comment if not loaded
+func (nl NotificationList) LoadAttributes(ctx context.Context) error {
+	if _, _, err := nl.LoadRepos(ctx); err != nil {
+		return err
+	}
+	if _, err := nl.LoadIssues(ctx); err != nil {
+		return err
+	}
+	if _, err := nl.LoadUsers(ctx); err != nil {
+		return err
+	}
+	if _, err := nl.LoadComments(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+// getPendingRepoIDs returns all the repositoty ids which haven't been loaded
+func (nl NotificationList) getPendingRepoIDs() []int64 {
+	return container.FilterSlice(nl, func(n *Notification) (int64, bool) {
+		return n.RepoID, n.Repository == nil
+	})
+}
+
+// LoadRepos loads repositories from database
+func (nl NotificationList) LoadRepos(ctx context.Context) (repo_model.RepositoryList, []int, error) {
+	if len(nl) == 0 {
+		return repo_model.RepositoryList{}, []int{}, nil
+	}
+
+	repoIDs := nl.getPendingRepoIDs()
+	repos := make(map[int64]*repo_model.Repository, len(repoIDs))
+	left := len(repoIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", repoIDs[:limit]).
+			Rows(new(repo_model.Repository))
+		if err != nil {
+			return nil, nil, err
+		}
+
+		for rows.Next() {
+			var repo repo_model.Repository
+			err = rows.Scan(&repo)
+			if err != nil {
+				rows.Close()
+				return nil, nil, err
+			}
+
+			repos[repo.ID] = &repo
+		}
+		_ = rows.Close()
+
+		left -= limit
+		repoIDs = repoIDs[limit:]
+	}
+
+	failed := []int{}
+
+	reposList := make(repo_model.RepositoryList, 0, len(repoIDs))
+	for i, notification := range nl {
+		if notification.Repository == nil {
+			notification.Repository = repos[notification.RepoID]
+		}
+		if notification.Repository == nil {
+			log.Error("Notification[%d]: RepoID: %d not found", notification.ID, notification.RepoID)
+			failed = append(failed, i)
+			continue
+		}
+		var found bool
+		for _, r := range reposList {
+			if r.ID == notification.RepoID {
+				found = true
+				break
+			}
+		}
+		if !found {
+			reposList = append(reposList, notification.Repository)
+		}
+	}
+	return reposList, failed, nil
+}
+
+func (nl NotificationList) getPendingIssueIDs() []int64 {
+	ids := make(container.Set[int64], len(nl))
+	for _, notification := range nl {
+		if notification.Issue != nil {
+			continue
+		}
+		ids.Add(notification.IssueID)
+	}
+	return ids.Values()
+}
+
+// LoadIssues loads issues from database
+func (nl NotificationList) LoadIssues(ctx context.Context) ([]int, error) {
+	if len(nl) == 0 {
+		return []int{}, nil
+	}
+
+	issueIDs := nl.getPendingIssueIDs()
+	issues := make(map[int64]*issues_model.Issue, len(issueIDs))
+	left := len(issueIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", issueIDs[:limit]).
+			Rows(new(issues_model.Issue))
+		if err != nil {
+			return nil, err
+		}
+
+		for rows.Next() {
+			var issue issues_model.Issue
+			err = rows.Scan(&issue)
+			if err != nil {
+				rows.Close()
+				return nil, err
+			}
+
+			issues[issue.ID] = &issue
+		}
+		_ = rows.Close()
+
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	failures := []int{}
+
+	for i, notification := range nl {
+		if notification.Issue == nil {
+			notification.Issue = issues[notification.IssueID]
+			if notification.Issue == nil {
+				if notification.IssueID != 0 {
+					log.Error("Notification[%d]: IssueID: %d Not Found", notification.ID, notification.IssueID)
+					failures = append(failures, i)
+				}
+				continue
+			}
+			notification.Issue.Repo = notification.Repository
+		}
+	}
+	return failures, nil
+}
+
+// Without returns the notification list without the failures
+func (nl NotificationList) Without(failures []int) NotificationList {
+	if len(failures) == 0 {
+		return nl
+	}
+	remaining := make([]*Notification, 0, len(nl))
+	last := -1
+	var i int
+	for _, i = range failures {
+		remaining = append(remaining, nl[last+1:i]...)
+		last = i
+	}
+	if len(nl) > i {
+		remaining = append(remaining, nl[i+1:]...)
+	}
+	return remaining
+}
+
+func (nl NotificationList) getPendingCommentIDs() []int64 {
+	ids := make(container.Set[int64], len(nl))
+	for _, notification := range nl {
+		if notification.CommentID == 0 || notification.Comment != nil {
+			continue
+		}
+		ids.Add(notification.CommentID)
+	}
+	return ids.Values()
+}
+
+func (nl NotificationList) getUserIDs() []int64 {
+	ids := make(container.Set[int64], len(nl))
+	for _, notification := range nl {
+		if notification.UserID == 0 || notification.User != nil {
+			continue
+		}
+		ids.Add(notification.UserID)
+	}
+	return ids.Values()
+}
+
+// LoadUsers loads users from database
+func (nl NotificationList) LoadUsers(ctx context.Context) ([]int, error) {
+	if len(nl) == 0 {
+		return []int{}, nil
+	}
+
+	userIDs := nl.getUserIDs()
+	users := make(map[int64]*user_model.User, len(userIDs))
+	left := len(userIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", userIDs[:limit]).
+			Rows(new(user_model.User))
+		if err != nil {
+			return nil, err
+		}
+
+		for rows.Next() {
+			var user user_model.User
+			err = rows.Scan(&user)
+			if err != nil {
+				rows.Close()
+				return nil, err
+			}
+
+			users[user.ID] = &user
+		}
+		_ = rows.Close()
+
+		left -= limit
+		userIDs = userIDs[limit:]
+	}
+
+	failures := []int{}
+	for i, notification := range nl {
+		if notification.UserID > 0 && notification.User == nil && users[notification.UserID] != nil {
+			notification.User = users[notification.UserID]
+			if notification.User == nil {
+				log.Error("Notification[%d]: UserID[%d] failed to load", notification.ID, notification.UserID)
+				failures = append(failures, i)
+				continue
+			}
+		}
+	}
+	return failures, nil
+}
+
+// LoadComments loads comments from database
+func (nl NotificationList) LoadComments(ctx context.Context) ([]int, error) {
+	if len(nl) == 0 {
+		return []int{}, nil
+	}
+
+	commentIDs := nl.getPendingCommentIDs()
+	comments := make(map[int64]*issues_model.Comment, len(commentIDs))
+	left := len(commentIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", commentIDs[:limit]).
+			Rows(new(issues_model.Comment))
+		if err != nil {
+			return nil, err
+		}
+
+		for rows.Next() {
+			var comment issues_model.Comment
+			err = rows.Scan(&comment)
+			if err != nil {
+				rows.Close()
+				return nil, err
+			}
+
+			comments[comment.ID] = &comment
+		}
+		_ = rows.Close()
+
+		left -= limit
+		commentIDs = commentIDs[limit:]
+	}
+
+	failures := []int{}
+	for i, notification := range nl {
+		if notification.CommentID > 0 && notification.Comment == nil && comments[notification.CommentID] != nil {
+			notification.Comment = comments[notification.CommentID]
+			if notification.Comment == nil {
+				log.Error("Notification[%d]: CommentID[%d] failed to load", notification.ID, notification.CommentID)
+				failures = append(failures, i)
+				continue
+			}
+			notification.Comment.Issue = notification.Issue
+		}
+	}
+	return failures, nil
+}
diff --git a/models/activities/notification_test.go b/models/activities/notification_test.go
new file mode 100644
index 0000000..3ff223d
--- /dev/null
+++ b/models/activities/notification_test.go
@@ -0,0 +1,141 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities_test
+
+import (
+	"context"
+	"testing"
+
+	activities_model "code.gitea.io/gitea/models/activities"
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateOrUpdateIssueNotifications(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+
+	require.NoError(t, activities_model.CreateOrUpdateIssueNotifications(db.DefaultContext, issue.ID, 0, 2, 0))
+
+	// User 9 is inactive, thus notifications for user 1 and 4 are created
+	notf := unittest.AssertExistsAndLoadBean(t, &activities_model.Notification{UserID: 1, IssueID: issue.ID})
+	assert.Equal(t, activities_model.NotificationStatusUnread, notf.Status)
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{ID: issue.ID})
+
+	notf = unittest.AssertExistsAndLoadBean(t, &activities_model.Notification{UserID: 4, IssueID: issue.ID})
+	assert.Equal(t, activities_model.NotificationStatusUnread, notf.Status)
+}
+
+func TestNotificationsForUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	notfs, err := db.Find[activities_model.Notification](db.DefaultContext, activities_model.FindNotificationOptions{
+		UserID: user.ID,
+		Status: []activities_model.NotificationStatus{
+			activities_model.NotificationStatusRead,
+			activities_model.NotificationStatusUnread,
+		},
+	})
+	require.NoError(t, err)
+	if assert.Len(t, notfs, 3) {
+		assert.EqualValues(t, 5, notfs[0].ID)
+		assert.EqualValues(t, user.ID, notfs[0].UserID)
+		assert.EqualValues(t, 4, notfs[1].ID)
+		assert.EqualValues(t, user.ID, notfs[1].UserID)
+		assert.EqualValues(t, 2, notfs[2].ID)
+		assert.EqualValues(t, user.ID, notfs[2].UserID)
+	}
+}
+
+func TestNotification_GetRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	notf := unittest.AssertExistsAndLoadBean(t, &activities_model.Notification{RepoID: 1})
+	repo, err := notf.GetRepo(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, repo, notf.Repository)
+	assert.EqualValues(t, notf.RepoID, repo.ID)
+}
+
+func TestNotification_GetIssue(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	notf := unittest.AssertExistsAndLoadBean(t, &activities_model.Notification{RepoID: 1})
+	issue, err := notf.GetIssue(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, issue, notf.Issue)
+	assert.EqualValues(t, notf.IssueID, issue.ID)
+}
+
+func TestGetNotificationCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	cnt, err := db.Count[activities_model.Notification](db.DefaultContext, activities_model.FindNotificationOptions{
+		UserID: user.ID,
+		Status: []activities_model.NotificationStatus{
+			activities_model.NotificationStatusRead,
+		},
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, cnt)
+
+	cnt, err = db.Count[activities_model.Notification](db.DefaultContext, activities_model.FindNotificationOptions{
+		UserID: user.ID,
+		Status: []activities_model.NotificationStatus{
+			activities_model.NotificationStatusUnread,
+		},
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, cnt)
+}
+
+func TestSetNotificationStatus(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	notf := unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{UserID: user.ID, Status: activities_model.NotificationStatusRead})
+	_, err := activities_model.SetNotificationStatus(db.DefaultContext, notf.ID, user, activities_model.NotificationStatusPinned)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{ID: notf.ID, Status: activities_model.NotificationStatusPinned})
+
+	_, err = activities_model.SetNotificationStatus(db.DefaultContext, 1, user, activities_model.NotificationStatusRead)
+	require.Error(t, err)
+	_, err = activities_model.SetNotificationStatus(db.DefaultContext, unittest.NonexistentID, user, activities_model.NotificationStatusRead)
+	require.Error(t, err)
+}
+
+func TestUpdateNotificationStatuses(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	notfUnread := unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{UserID: user.ID, Status: activities_model.NotificationStatusUnread})
+	notfRead := unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{UserID: user.ID, Status: activities_model.NotificationStatusRead})
+	notfPinned := unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{UserID: user.ID, Status: activities_model.NotificationStatusPinned})
+	require.NoError(t, activities_model.UpdateNotificationStatuses(db.DefaultContext, user, activities_model.NotificationStatusUnread, activities_model.NotificationStatusRead))
+	unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{ID: notfUnread.ID, Status: activities_model.NotificationStatusRead})
+	unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{ID: notfRead.ID, Status: activities_model.NotificationStatusRead})
+	unittest.AssertExistsAndLoadBean(t,
+		&activities_model.Notification{ID: notfPinned.ID, Status: activities_model.NotificationStatusPinned})
+}
+
+func TestSetIssueReadBy(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	require.NoError(t, db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		return activities_model.SetIssueReadBy(ctx, issue.ID, user.ID)
+	}))
+
+	nt, err := activities_model.GetIssueNotification(db.DefaultContext, user.ID, issue.ID)
+	require.NoError(t, err)
+	assert.EqualValues(t, activities_model.NotificationStatusRead, nt.Status)
+}
diff --git a/models/activities/repo_activity.go b/models/activities/repo_activity.go
new file mode 100644
index 0000000..ffa709a
--- /dev/null
+++ b/models/activities/repo_activity.go
@@ -0,0 +1,391 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/gitrepo"
+
+	"xorm.io/xorm"
+)
+
+// ActivityAuthorData represents statistical git commit count data
+type ActivityAuthorData struct {
+	Name       string `json:"name"`
+	Login      string `json:"login"`
+	AvatarLink string `json:"avatar_link"`
+	HomeLink   string `json:"home_link"`
+	Commits    int64  `json:"commits"`
+}
+
+// ActivityStats represents issue and pull request information.
+type ActivityStats struct {
+	OpenedPRs                   issues_model.PullRequestList
+	OpenedPRAuthorCount         int64
+	MergedPRs                   issues_model.PullRequestList
+	MergedPRAuthorCount         int64
+	ActiveIssues                issues_model.IssueList
+	OpenedIssues                issues_model.IssueList
+	OpenedIssueAuthorCount      int64
+	ClosedIssues                issues_model.IssueList
+	ClosedIssueAuthorCount      int64
+	UnresolvedIssues            issues_model.IssueList
+	PublishedReleases           []*repo_model.Release
+	PublishedReleaseAuthorCount int64
+	Code                        *git.CodeActivityStats
+}
+
+// GetActivityStats return stats for repository at given time range
+func GetActivityStats(ctx context.Context, repo *repo_model.Repository, timeFrom time.Time, releases, issues, prs, code bool) (*ActivityStats, error) {
+	stats := &ActivityStats{Code: &git.CodeActivityStats{}}
+	if releases {
+		if err := stats.FillReleases(ctx, repo.ID, timeFrom); err != nil {
+			return nil, fmt.Errorf("FillReleases: %w", err)
+		}
+	}
+	if prs {
+		if err := stats.FillPullRequests(ctx, repo.ID, timeFrom); err != nil {
+			return nil, fmt.Errorf("FillPullRequests: %w", err)
+		}
+	}
+	if issues {
+		if err := stats.FillIssues(ctx, repo.ID, timeFrom); err != nil {
+			return nil, fmt.Errorf("FillIssues: %w", err)
+		}
+	}
+	if err := stats.FillUnresolvedIssues(ctx, repo.ID, timeFrom, issues, prs); err != nil {
+		return nil, fmt.Errorf("FillUnresolvedIssues: %w", err)
+	}
+	if code {
+		gitRepo, closer, err := gitrepo.RepositoryFromContextOrOpen(ctx, repo)
+		if err != nil {
+			return nil, fmt.Errorf("OpenRepository: %w", err)
+		}
+		defer closer.Close()
+
+		code, err := gitRepo.GetCodeActivityStats(timeFrom, repo.DefaultBranch)
+		if err != nil {
+			return nil, fmt.Errorf("FillFromGit: %w", err)
+		}
+		stats.Code = code
+	}
+	return stats, nil
+}
+
+// GetActivityStatsTopAuthors returns top author stats for git commits for all branches
+func GetActivityStatsTopAuthors(ctx context.Context, repo *repo_model.Repository, timeFrom time.Time, count int) ([]*ActivityAuthorData, error) {
+	gitRepo, closer, err := gitrepo.RepositoryFromContextOrOpen(ctx, repo)
+	if err != nil {
+		return nil, fmt.Errorf("OpenRepository: %w", err)
+	}
+	defer closer.Close()
+
+	code, err := gitRepo.GetCodeActivityStats(timeFrom, "")
+	if err != nil {
+		return nil, fmt.Errorf("FillFromGit: %w", err)
+	}
+	if code.Authors == nil {
+		return nil, nil
+	}
+	users := make(map[int64]*ActivityAuthorData)
+	var unknownUserID int64
+	unknownUserAvatarLink := user_model.NewGhostUser().AvatarLink(ctx)
+	for _, v := range code.Authors {
+		if len(v.Email) == 0 {
+			continue
+		}
+		u, err := user_model.GetUserByEmail(ctx, v.Email)
+		if u == nil || user_model.IsErrUserNotExist(err) {
+			unknownUserID--
+			users[unknownUserID] = &ActivityAuthorData{
+				Name:       v.Name,
+				AvatarLink: unknownUserAvatarLink,
+				Commits:    v.Commits,
+			}
+			continue
+		}
+		if err != nil {
+			return nil, err
+		}
+		if user, ok := users[u.ID]; !ok {
+			users[u.ID] = &ActivityAuthorData{
+				Name:       u.DisplayName(),
+				Login:      u.LowerName,
+				AvatarLink: u.AvatarLink(ctx),
+				HomeLink:   u.HomeLink(),
+				Commits:    v.Commits,
+			}
+		} else {
+			user.Commits += v.Commits
+		}
+	}
+	v := make([]*ActivityAuthorData, 0, len(users))
+	for _, u := range users {
+		v = append(v, u)
+	}
+
+	sort.Slice(v, func(i, j int) bool {
+		return v[i].Commits > v[j].Commits
+	})
+
+	cnt := count
+	if cnt > len(v) {
+		cnt = len(v)
+	}
+
+	return v[:cnt], nil
+}
+
+// ActivePRCount returns total active pull request count
+func (stats *ActivityStats) ActivePRCount() int {
+	return stats.OpenedPRCount() + stats.MergedPRCount()
+}
+
+// OpenedPRCount returns opened pull request count
+func (stats *ActivityStats) OpenedPRCount() int {
+	return len(stats.OpenedPRs)
+}
+
+// OpenedPRPerc returns opened pull request percents from total active
+func (stats *ActivityStats) OpenedPRPerc() int {
+	return int(float32(stats.OpenedPRCount()) / float32(stats.ActivePRCount()) * 100.0)
+}
+
+// MergedPRCount returns merged pull request count
+func (stats *ActivityStats) MergedPRCount() int {
+	return len(stats.MergedPRs)
+}
+
+// MergedPRPerc returns merged pull request percent from total active
+func (stats *ActivityStats) MergedPRPerc() int {
+	return int(float32(stats.MergedPRCount()) / float32(stats.ActivePRCount()) * 100.0)
+}
+
+// ActiveIssueCount returns total active issue count
+func (stats *ActivityStats) ActiveIssueCount() int {
+	return len(stats.ActiveIssues)
+}
+
+// OpenedIssueCount returns open issue count
+func (stats *ActivityStats) OpenedIssueCount() int {
+	return len(stats.OpenedIssues)
+}
+
+// OpenedIssuePerc returns open issue count percent from total active
+func (stats *ActivityStats) OpenedIssuePerc() int {
+	return int(float32(stats.OpenedIssueCount()) / float32(stats.ActiveIssueCount()) * 100.0)
+}
+
+// ClosedIssueCount returns closed issue count
+func (stats *ActivityStats) ClosedIssueCount() int {
+	return len(stats.ClosedIssues)
+}
+
+// ClosedIssuePerc returns closed issue count percent from total active
+func (stats *ActivityStats) ClosedIssuePerc() int {
+	return int(float32(stats.ClosedIssueCount()) / float32(stats.ActiveIssueCount()) * 100.0)
+}
+
+// UnresolvedIssueCount returns unresolved issue and pull request count
+func (stats *ActivityStats) UnresolvedIssueCount() int {
+	return len(stats.UnresolvedIssues)
+}
+
+// PublishedReleaseCount returns published release count
+func (stats *ActivityStats) PublishedReleaseCount() int {
+	return len(stats.PublishedReleases)
+}
+
+// FillPullRequests returns pull request information for activity page
+func (stats *ActivityStats) FillPullRequests(ctx context.Context, repoID int64, fromTime time.Time) error {
+	var err error
+	var count int64
+
+	// Merged pull requests
+	sess := pullRequestsForActivityStatement(ctx, repoID, fromTime, true)
+	sess.OrderBy("pull_request.merged_unix DESC")
+	stats.MergedPRs = make(issues_model.PullRequestList, 0)
+	if err = sess.Find(&stats.MergedPRs); err != nil {
+		return err
+	}
+	if err = stats.MergedPRs.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	// Merged pull request authors
+	sess = pullRequestsForActivityStatement(ctx, repoID, fromTime, true)
+	if _, err = sess.Select("count(distinct issue.poster_id) as `count`").Table("pull_request").Get(&count); err != nil {
+		return err
+	}
+	stats.MergedPRAuthorCount = count
+
+	// Opened pull requests
+	sess = pullRequestsForActivityStatement(ctx, repoID, fromTime, false)
+	sess.OrderBy("issue.created_unix ASC")
+	stats.OpenedPRs = make(issues_model.PullRequestList, 0)
+	if err = sess.Find(&stats.OpenedPRs); err != nil {
+		return err
+	}
+	if err = stats.OpenedPRs.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	// Opened pull request authors
+	sess = pullRequestsForActivityStatement(ctx, repoID, fromTime, false)
+	if _, err = sess.Select("count(distinct issue.poster_id) as `count`").Table("pull_request").Get(&count); err != nil {
+		return err
+	}
+	stats.OpenedPRAuthorCount = count
+
+	return nil
+}
+
+func pullRequestsForActivityStatement(ctx context.Context, repoID int64, fromTime time.Time, merged bool) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("pull_request.base_repo_id=?", repoID).
+		Join("INNER", "issue", "pull_request.issue_id = issue.id")
+
+	if merged {
+		sess.And("pull_request.has_merged = ?", true)
+		sess.And("pull_request.merged_unix >= ?", fromTime.Unix())
+	} else {
+		sess.And("issue.is_closed = ?", false)
+		sess.And("issue.created_unix >= ?", fromTime.Unix())
+	}
+
+	return sess
+}
+
+// FillIssues returns issue information for activity page
+func (stats *ActivityStats) FillIssues(ctx context.Context, repoID int64, fromTime time.Time) error {
+	var err error
+	var count int64
+
+	// Closed issues
+	sess := issuesForActivityStatement(ctx, repoID, fromTime, true, false)
+	sess.OrderBy("issue.closed_unix DESC")
+	stats.ClosedIssues = make(issues_model.IssueList, 0)
+	if err = sess.Find(&stats.ClosedIssues); err != nil {
+		return err
+	}
+
+	// Closed issue authors
+	sess = issuesForActivityStatement(ctx, repoID, fromTime, true, false)
+	if _, err = sess.Select("count(distinct issue.poster_id) as `count`").Table("issue").Get(&count); err != nil {
+		return err
+	}
+	stats.ClosedIssueAuthorCount = count
+
+	// New issues
+	sess = newlyCreatedIssues(ctx, repoID, fromTime)
+	sess.OrderBy("issue.created_unix ASC")
+	stats.OpenedIssues = make(issues_model.IssueList, 0)
+	if err = sess.Find(&stats.OpenedIssues); err != nil {
+		return err
+	}
+
+	// Active issues
+	sess = activeIssues(ctx, repoID, fromTime)
+	sess.OrderBy("issue.created_unix ASC")
+	stats.ActiveIssues = make(issues_model.IssueList, 0)
+	if err = sess.Find(&stats.ActiveIssues); err != nil {
+		return err
+	}
+
+	// Opened issue authors
+	sess = issuesForActivityStatement(ctx, repoID, fromTime, false, false)
+	if _, err = sess.Select("count(distinct issue.poster_id) as `count`").Table("issue").Get(&count); err != nil {
+		return err
+	}
+	stats.OpenedIssueAuthorCount = count
+
+	return nil
+}
+
+// FillUnresolvedIssues returns unresolved issue and pull request information for activity page
+func (stats *ActivityStats) FillUnresolvedIssues(ctx context.Context, repoID int64, fromTime time.Time, issues, prs bool) error {
+	// Check if we need to select anything
+	if !issues && !prs {
+		return nil
+	}
+	sess := issuesForActivityStatement(ctx, repoID, fromTime, false, true)
+	if !issues || !prs {
+		sess.And("issue.is_pull = ?", prs)
+	}
+	sess.OrderBy("issue.updated_unix DESC")
+	stats.UnresolvedIssues = make(issues_model.IssueList, 0)
+	return sess.Find(&stats.UnresolvedIssues)
+}
+
+func newlyCreatedIssues(ctx context.Context, repoID int64, fromTime time.Time) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
+		And("issue.is_pull = ?", false).                // Retain the is_pull check to exclude pull requests
+		And("issue.created_unix >= ?", fromTime.Unix()) // Include all issues created after fromTime
+
+	return sess
+}
+
+func activeIssues(ctx context.Context, repoID int64, fromTime time.Time) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
+		And("issue.is_pull = ?", false).
+		And("issue.created_unix >= ? OR issue.closed_unix >= ?", fromTime.Unix(), fromTime.Unix())
+
+	return sess
+}
+
+func issuesForActivityStatement(ctx context.Context, repoID int64, fromTime time.Time, closed, unresolved bool) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("issue.repo_id = ?", repoID).
+		And("issue.is_closed = ?", closed)
+
+	if !unresolved {
+		sess.And("issue.is_pull = ?", false)
+		if closed {
+			sess.And("issue.closed_unix >= ?", fromTime.Unix())
+		} else {
+			sess.And("issue.created_unix >= ?", fromTime.Unix())
+		}
+	} else {
+		sess.And("issue.created_unix < ?", fromTime.Unix())
+		sess.And("issue.updated_unix >= ?", fromTime.Unix())
+	}
+
+	return sess
+}
+
+// FillReleases returns release information for activity page
+func (stats *ActivityStats) FillReleases(ctx context.Context, repoID int64, fromTime time.Time) error {
+	var err error
+	var count int64
+
+	// Published releases list
+	sess := releasesForActivityStatement(ctx, repoID, fromTime)
+	sess.OrderBy("`release`.created_unix DESC")
+	stats.PublishedReleases = make([]*repo_model.Release, 0)
+	if err = sess.Find(&stats.PublishedReleases); err != nil {
+		return err
+	}
+
+	// Published releases authors
+	sess = releasesForActivityStatement(ctx, repoID, fromTime)
+	if _, err = sess.Select("count(distinct `release`.publisher_id) as `count`").Table("release").Get(&count); err != nil {
+		return err
+	}
+	stats.PublishedReleaseAuthorCount = count
+
+	return nil
+}
+
+func releasesForActivityStatement(ctx context.Context, repoID int64, fromTime time.Time) *xorm.Session {
+	return db.GetEngine(ctx).Where("`release`.repo_id = ?", repoID).
+		And("`release`.is_draft = ?", false).
+		And("`release`.created_unix >= ?", fromTime.Unix())
+}
diff --git a/models/activities/repo_activity_test.go b/models/activities/repo_activity_test.go
new file mode 100644
index 0000000..06cd0e1
--- /dev/null
+++ b/models/activities/repo_activity_test.go
@@ -0,0 +1,30 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetActivityStats(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	stats, err := GetActivityStats(db.DefaultContext, repo, time.Unix(0, 0), true, true, true, true)
+	require.NoError(t, err)
+
+	assert.EqualValues(t, 2, stats.ActiveIssueCount())
+	assert.EqualValues(t, 2, stats.OpenedIssueCount())
+	assert.EqualValues(t, 0, stats.ClosedIssueCount())
+	assert.EqualValues(t, 3, stats.ActivePRCount())
+}
diff --git a/models/activities/statistic.go b/models/activities/statistic.go
new file mode 100644
index 0000000..ff81ad7
--- /dev/null
+++ b/models/activities/statistic.go
@@ -0,0 +1,120 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+
+	asymkey_model "code.gitea.io/gitea/models/asymkey"
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/organization"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	project_model "code.gitea.io/gitea/models/project"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/models/webhook"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// Statistic contains the database statistics
+type Statistic struct {
+	Counter struct {
+		User, Org, PublicKey,
+		Repo, Watch, Star, Access,
+		Issue, IssueClosed, IssueOpen,
+		Comment, Oauth, Follow,
+		Mirror, Release, AuthSource, Webhook,
+		Milestone, Label, HookTask,
+		Team, UpdateTask, Project,
+		ProjectColumn, Attachment,
+		Branches, Tags, CommitStatus int64
+		IssueByLabel      []IssueByLabelCount
+		IssueByRepository []IssueByRepositoryCount
+	}
+}
+
+// IssueByLabelCount contains the number of issue group by label
+type IssueByLabelCount struct {
+	Count int64
+	Label string
+}
+
+// IssueByRepositoryCount contains the number of issue group by repository
+type IssueByRepositoryCount struct {
+	Count      int64
+	OwnerName  string
+	Repository string
+}
+
+// GetStatistic returns the database statistics
+func GetStatistic(ctx context.Context) (stats Statistic) {
+	e := db.GetEngine(ctx)
+	stats.Counter.User = user_model.CountUsers(ctx, nil)
+	stats.Counter.Org, _ = db.Count[organization.Organization](ctx, organization.FindOrgOptions{IncludePrivate: true})
+	stats.Counter.PublicKey, _ = e.Count(new(asymkey_model.PublicKey))
+	stats.Counter.Repo, _ = repo_model.CountRepositories(ctx, repo_model.CountRepositoryOptions{})
+	stats.Counter.Watch, _ = e.Count(new(repo_model.Watch))
+	stats.Counter.Star, _ = e.Count(new(repo_model.Star))
+	stats.Counter.Access, _ = e.Count(new(access_model.Access))
+	stats.Counter.Branches, _ = e.Count(new(git_model.Branch))
+	stats.Counter.Tags, _ = e.Where("is_draft=?", false).Count(new(repo_model.Release))
+	stats.Counter.CommitStatus, _ = e.Count(new(git_model.CommitStatus))
+
+	type IssueCount struct {
+		Count    int64
+		IsClosed bool
+	}
+
+	if setting.Metrics.EnabledIssueByLabel {
+		stats.Counter.IssueByLabel = []IssueByLabelCount{}
+
+		_ = e.Select("COUNT(*) AS count, l.name AS label").
+			Join("LEFT", "label l", "l.id=il.label_id").
+			Table("issue_label il").
+			GroupBy("l.name").
+			Find(&stats.Counter.IssueByLabel)
+	}
+
+	if setting.Metrics.EnabledIssueByRepository {
+		stats.Counter.IssueByRepository = []IssueByRepositoryCount{}
+
+		_ = e.Select("COUNT(*) AS count, r.owner_name, r.name AS repository").
+			Join("LEFT", "repository r", "r.id=i.repo_id").
+			Table("issue i").
+			GroupBy("r.owner_name, r.name").
+			Find(&stats.Counter.IssueByRepository)
+	}
+
+	var issueCounts []IssueCount
+
+	_ = e.Select("COUNT(*) AS count, is_closed").Table("issue").GroupBy("is_closed").Find(&issueCounts)
+	for _, c := range issueCounts {
+		if c.IsClosed {
+			stats.Counter.IssueClosed = c.Count
+		} else {
+			stats.Counter.IssueOpen = c.Count
+		}
+	}
+
+	stats.Counter.Issue = stats.Counter.IssueClosed + stats.Counter.IssueOpen
+
+	stats.Counter.Comment, _ = e.Count(new(issues_model.Comment))
+	stats.Counter.Oauth = 0
+	stats.Counter.Follow, _ = e.Count(new(user_model.Follow))
+	stats.Counter.Mirror, _ = e.Count(new(repo_model.Mirror))
+	stats.Counter.Release, _ = e.Count(new(repo_model.Release))
+	stats.Counter.AuthSource, _ = db.Count[auth.Source](ctx, auth.FindSourcesOptions{})
+	stats.Counter.Webhook, _ = e.Count(new(webhook.Webhook))
+	stats.Counter.Milestone, _ = e.Count(new(issues_model.Milestone))
+	stats.Counter.Label, _ = e.Count(new(issues_model.Label))
+	stats.Counter.HookTask, _ = e.Count(new(webhook.HookTask))
+	stats.Counter.Team, _ = e.Count(new(organization.Team))
+	stats.Counter.Attachment, _ = e.Count(new(repo_model.Attachment))
+	stats.Counter.Project, _ = e.Count(new(project_model.Project))
+	stats.Counter.ProjectColumn, _ = e.Count(new(project_model.Column))
+	return stats
+}
diff --git a/models/activities/user_heatmap.go b/models/activities/user_heatmap.go
new file mode 100644
index 0000000..080075d
--- /dev/null
+++ b/models/activities/user_heatmap.go
@@ -0,0 +1,78 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// UserHeatmapData represents the data needed to create a heatmap
+type UserHeatmapData struct {
+	Timestamp     timeutil.TimeStamp `json:"timestamp"`
+	Contributions int64              `json:"contributions"`
+}
+
+// GetUserHeatmapDataByUser returns an array of UserHeatmapData
+func GetUserHeatmapDataByUser(ctx context.Context, user, doer *user_model.User) ([]*UserHeatmapData, error) {
+	return getUserHeatmapData(ctx, user, nil, doer)
+}
+
+// GetUserHeatmapDataByUserTeam returns an array of UserHeatmapData
+func GetUserHeatmapDataByUserTeam(ctx context.Context, user *user_model.User, team *organization.Team, doer *user_model.User) ([]*UserHeatmapData, error) {
+	return getUserHeatmapData(ctx, user, team, doer)
+}
+
+func getUserHeatmapData(ctx context.Context, user *user_model.User, team *organization.Team, doer *user_model.User) ([]*UserHeatmapData, error) {
+	hdata := make([]*UserHeatmapData, 0)
+
+	if !ActivityReadable(user, doer) {
+		return hdata, nil
+	}
+
+	// Group by 15 minute intervals which will allow the client to accurately shift the timestamp to their timezone.
+	// The interval is based on the fact that there are timezones such as UTC +5:30 and UTC +12:45.
+	groupBy := "created_unix / 900 * 900"
+	if setting.Database.Type.IsMySQL() {
+		groupBy = "created_unix DIV 900 * 900"
+	}
+
+	cond, err := activityQueryCondition(ctx, GetFeedsOptions{
+		RequestedUser:  user,
+		RequestedTeam:  team,
+		Actor:          doer,
+		IncludePrivate: true, // don't filter by private, as we already filter by repo access
+		IncludeDeleted: true,
+		// * Heatmaps for individual users only include actions that the user themself did.
+		// * For organizations actions by all users that were made in owned
+		//   repositories are counted.
+		OnlyPerformedBy: !user.IsOrganization(),
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return hdata, db.GetEngine(ctx).
+		Select(groupBy+" AS timestamp, count(user_id) as contributions").
+		Table("action").
+		Where(cond).
+		And("created_unix > ?", timeutil.TimeStampNow()-31536000).
+		GroupBy("timestamp").
+		OrderBy("timestamp").
+		Find(&hdata)
+}
+
+// GetTotalContributionsInHeatmap returns the total number of contributions in a heatmap
+func GetTotalContributionsInHeatmap(hdata []*UserHeatmapData) int64 {
+	var total int64
+	for _, v := range hdata {
+		total += v.Contributions
+	}
+	return total
+}
diff --git a/models/activities/user_heatmap_test.go b/models/activities/user_heatmap_test.go
new file mode 100644
index 0000000..316ea7d
--- /dev/null
+++ b/models/activities/user_heatmap_test.go
@@ -0,0 +1,101 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package activities_test
+
+import (
+	"testing"
+	"time"
+
+	activities_model "code.gitea.io/gitea/models/activities"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetUserHeatmapDataByUser(t *testing.T) {
+	testCases := []struct {
+		desc        string
+		userID      int64
+		doerID      int64
+		CountResult int
+		JSONResult  string
+	}{
+		{
+			"self looks at action in private repo",
+			2, 2, 1, `[{"timestamp":1603227600,"contributions":1}]`,
+		},
+		{
+			"admin looks at action in private repo",
+			2, 1, 1, `[{"timestamp":1603227600,"contributions":1}]`,
+		},
+		{
+			"other user looks at action in private repo",
+			2, 3, 0, `[]`,
+		},
+		{
+			"nobody looks at action in private repo",
+			2, 0, 0, `[]`,
+		},
+		{
+			"collaborator looks at action in private repo",
+			16, 15, 1, `[{"timestamp":1603267200,"contributions":1}]`,
+		},
+		{
+			"no action action not performed by target user",
+			3, 3, 0, `[]`,
+		},
+		{
+			"multiple actions performed with two grouped together",
+			10, 10, 3, `[{"timestamp":1603009800,"contributions":1},{"timestamp":1603010700,"contributions":2}]`,
+		},
+	}
+	// Prepare
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Mock time
+	timeutil.MockSet(time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC))
+	defer timeutil.MockUnset()
+
+	for _, tc := range testCases {
+		user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: tc.userID})
+
+		doer := &user_model.User{ID: tc.doerID}
+		_, err := unittest.LoadBeanIfExists(doer)
+		require.NoError(t, err)
+		if tc.doerID == 0 {
+			doer = nil
+		}
+
+		// get the action for comparison
+		actions, count, err := activities_model.GetFeeds(db.DefaultContext, activities_model.GetFeedsOptions{
+			RequestedUser:   user,
+			Actor:           doer,
+			IncludePrivate:  true,
+			OnlyPerformedBy: true,
+			IncludeDeleted:  true,
+		})
+		require.NoError(t, err)
+
+		// Get the heatmap and compare
+		heatmap, err := activities_model.GetUserHeatmapDataByUser(db.DefaultContext, user, doer)
+		var contributions int
+		for _, hm := range heatmap {
+			contributions += int(hm.Contributions)
+		}
+		require.NoError(t, err)
+		assert.Len(t, actions, contributions, "invalid action count: did the test data became too old?")
+		assert.Equal(t, count, int64(contributions))
+		assert.Equal(t, tc.CountResult, contributions, tc.desc)
+
+		// Test JSON rendering
+		jsonData, err := json.Marshal(heatmap)
+		require.NoError(t, err)
+		assert.Equal(t, tc.JSONResult, string(jsonData))
+	}
+}
diff --git a/models/admin/task.go b/models/admin/task.go
new file mode 100644
index 0000000..c8bc95f
--- /dev/null
+++ b/models/admin/task.go
@@ -0,0 +1,232 @@
+// Copyright 2019 Gitea. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package admin
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/migration"
+	"code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// Task represents a task
+type Task struct {
+	ID             int64
+	DoerID         int64                  `xorm:"index"` // operator
+	Doer           *user_model.User       `xorm:"-"`
+	OwnerID        int64                  `xorm:"index"` // repo owner id, when creating, the repoID maybe zero
+	Owner          *user_model.User       `xorm:"-"`
+	RepoID         int64                  `xorm:"index"`
+	Repo           *repo_model.Repository `xorm:"-"`
+	Type           structs.TaskType
+	Status         structs.TaskStatus `xorm:"index"`
+	StartTime      timeutil.TimeStamp
+	EndTime        timeutil.TimeStamp
+	PayloadContent string             `xorm:"TEXT"`
+	Message        string             `xorm:"TEXT"` // if task failed, saved the error reason, it could be a JSON string of TranslatableMessage or a plain message
+	Created        timeutil.TimeStamp `xorm:"created"`
+}
+
+func init() {
+	db.RegisterModel(new(Task))
+}
+
+// TranslatableMessage represents JSON struct that can be translated with a Locale
+type TranslatableMessage struct {
+	Format string
+	Args   []any `json:"omitempty"`
+}
+
+// LoadRepo loads repository of the task
+func (task *Task) LoadRepo(ctx context.Context) error {
+	if task.Repo != nil {
+		return nil
+	}
+	var repo repo_model.Repository
+	has, err := db.GetEngine(ctx).ID(task.RepoID).Get(&repo)
+	if err != nil {
+		return err
+	} else if !has {
+		return repo_model.ErrRepoNotExist{
+			ID: task.RepoID,
+		}
+	}
+	task.Repo = &repo
+	return nil
+}
+
+// LoadDoer loads do user
+func (task *Task) LoadDoer(ctx context.Context) error {
+	if task.Doer != nil {
+		return nil
+	}
+
+	var doer user_model.User
+	has, err := db.GetEngine(ctx).ID(task.DoerID).Get(&doer)
+	if err != nil {
+		return err
+	} else if !has {
+		return user_model.ErrUserNotExist{
+			UID: task.DoerID,
+		}
+	}
+	task.Doer = &doer
+
+	return nil
+}
+
+// LoadOwner loads owner user
+func (task *Task) LoadOwner(ctx context.Context) error {
+	if task.Owner != nil {
+		return nil
+	}
+
+	var owner user_model.User
+	has, err := db.GetEngine(ctx).ID(task.OwnerID).Get(&owner)
+	if err != nil {
+		return err
+	} else if !has {
+		return user_model.ErrUserNotExist{
+			UID: task.OwnerID,
+		}
+	}
+	task.Owner = &owner
+
+	return nil
+}
+
+// UpdateCols updates some columns
+func (task *Task) UpdateCols(ctx context.Context, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(task.ID).Cols(cols...).Update(task)
+	return err
+}
+
+// MigrateConfig returns task config when migrate repository
+func (task *Task) MigrateConfig() (*migration.MigrateOptions, error) {
+	if task.Type == structs.TaskTypeMigrateRepo {
+		var opts migration.MigrateOptions
+		err := json.Unmarshal([]byte(task.PayloadContent), &opts)
+		if err != nil {
+			return nil, err
+		}
+
+		// decrypt credentials
+		if opts.CloneAddrEncrypted != "" {
+			if opts.CloneAddr, err = secret.DecryptSecret(setting.SecretKey, opts.CloneAddrEncrypted); err != nil {
+				return nil, err
+			}
+		}
+		if opts.AuthPasswordEncrypted != "" {
+			if opts.AuthPassword, err = secret.DecryptSecret(setting.SecretKey, opts.AuthPasswordEncrypted); err != nil {
+				return nil, err
+			}
+		}
+		if opts.AuthTokenEncrypted != "" {
+			if opts.AuthToken, err = secret.DecryptSecret(setting.SecretKey, opts.AuthTokenEncrypted); err != nil {
+				return nil, err
+			}
+		}
+
+		return &opts, nil
+	}
+	return nil, fmt.Errorf("Task type is %s, not Migrate Repo", task.Type.Name())
+}
+
+// ErrTaskDoesNotExist represents a "TaskDoesNotExist" kind of error.
+type ErrTaskDoesNotExist struct {
+	ID     int64
+	RepoID int64
+	Type   structs.TaskType
+}
+
+// IsErrTaskDoesNotExist checks if an error is a ErrTaskDoesNotExist.
+func IsErrTaskDoesNotExist(err error) bool {
+	_, ok := err.(ErrTaskDoesNotExist)
+	return ok
+}
+
+func (err ErrTaskDoesNotExist) Error() string {
+	return fmt.Sprintf("task does not exist [id: %d, repo_id: %d, type: %d]",
+		err.ID, err.RepoID, err.Type)
+}
+
+func (err ErrTaskDoesNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// GetMigratingTask returns the migrating task by repo's id
+func GetMigratingTask(ctx context.Context, repoID int64) (*Task, error) {
+	task := Task{
+		RepoID: repoID,
+		Type:   structs.TaskTypeMigrateRepo,
+	}
+	has, err := db.GetEngine(ctx).Get(&task)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrTaskDoesNotExist{0, repoID, task.Type}
+	}
+	return &task, nil
+}
+
+// GetMigratingTaskByID returns the migrating task by repo's id
+func GetMigratingTaskByID(ctx context.Context, id, doerID int64) (*Task, *migration.MigrateOptions, error) {
+	task := Task{
+		ID:     id,
+		DoerID: doerID,
+		Type:   structs.TaskTypeMigrateRepo,
+	}
+	has, err := db.GetEngine(ctx).Get(&task)
+	if err != nil {
+		return nil, nil, err
+	} else if !has {
+		return nil, nil, ErrTaskDoesNotExist{id, 0, task.Type}
+	}
+
+	var opts migration.MigrateOptions
+	if err := json.Unmarshal([]byte(task.PayloadContent), &opts); err != nil {
+		return nil, nil, err
+	}
+	return &task, &opts, nil
+}
+
+// CreateTask creates a task on database
+func CreateTask(ctx context.Context, task *Task) error {
+	return db.Insert(ctx, task)
+}
+
+// FinishMigrateTask updates database when migrate task finished
+func FinishMigrateTask(ctx context.Context, task *Task) error {
+	task.Status = structs.TaskStatusFinished
+	task.EndTime = timeutil.TimeStampNow()
+
+	// delete credentials when we're done, they're a liability.
+	conf, err := task.MigrateConfig()
+	if err != nil {
+		return err
+	}
+	conf.AuthPassword = ""
+	conf.AuthToken = ""
+	conf.CloneAddr = util.SanitizeCredentialURLs(conf.CloneAddr)
+	conf.AuthPasswordEncrypted = ""
+	conf.AuthTokenEncrypted = ""
+	conf.CloneAddrEncrypted = ""
+	confBytes, err := json.Marshal(conf)
+	if err != nil {
+		return err
+	}
+	task.PayloadContent = string(confBytes)
+
+	_, err = db.GetEngine(ctx).ID(task.ID).Cols("status", "end_time", "payload_content").Update(task)
+	return err
+}
diff --git a/models/asymkey/error.go b/models/asymkey/error.go
new file mode 100644
index 0000000..03bc823
--- /dev/null
+++ b/models/asymkey/error.go
@@ -0,0 +1,318 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrKeyUnableVerify represents a "KeyUnableVerify" kind of error.
+type ErrKeyUnableVerify struct {
+	Result string
+}
+
+// IsErrKeyUnableVerify checks if an error is a ErrKeyUnableVerify.
+func IsErrKeyUnableVerify(err error) bool {
+	_, ok := err.(ErrKeyUnableVerify)
+	return ok
+}
+
+func (err ErrKeyUnableVerify) Error() string {
+	return fmt.Sprintf("Unable to verify key content [result: %s]", err.Result)
+}
+
+// ErrKeyIsPrivate is returned when the provided key is a private key not a public key
+var ErrKeyIsPrivate = util.NewSilentWrapErrorf(util.ErrInvalidArgument, "the provided key is a private key")
+
+// ErrKeyNotExist represents a "KeyNotExist" kind of error.
+type ErrKeyNotExist struct {
+	ID int64
+}
+
+// IsErrKeyNotExist checks if an error is a ErrKeyNotExist.
+func IsErrKeyNotExist(err error) bool {
+	_, ok := err.(ErrKeyNotExist)
+	return ok
+}
+
+func (err ErrKeyNotExist) Error() string {
+	return fmt.Sprintf("public key does not exist [id: %d]", err.ID)
+}
+
+func (err ErrKeyNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrKeyAlreadyExist represents a "KeyAlreadyExist" kind of error.
+type ErrKeyAlreadyExist struct {
+	OwnerID     int64
+	Fingerprint string
+	Content     string
+}
+
+// IsErrKeyAlreadyExist checks if an error is a ErrKeyAlreadyExist.
+func IsErrKeyAlreadyExist(err error) bool {
+	_, ok := err.(ErrKeyAlreadyExist)
+	return ok
+}
+
+func (err ErrKeyAlreadyExist) Error() string {
+	return fmt.Sprintf("public key already exists [owner_id: %d, finger_print: %s, content: %s]",
+		err.OwnerID, err.Fingerprint, err.Content)
+}
+
+func (err ErrKeyAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrKeyNameAlreadyUsed represents a "KeyNameAlreadyUsed" kind of error.
+type ErrKeyNameAlreadyUsed struct {
+	OwnerID int64
+	Name    string
+}
+
+// IsErrKeyNameAlreadyUsed checks if an error is a ErrKeyNameAlreadyUsed.
+func IsErrKeyNameAlreadyUsed(err error) bool {
+	_, ok := err.(ErrKeyNameAlreadyUsed)
+	return ok
+}
+
+func (err ErrKeyNameAlreadyUsed) Error() string {
+	return fmt.Sprintf("public key already exists [owner_id: %d, name: %s]", err.OwnerID, err.Name)
+}
+
+func (err ErrKeyNameAlreadyUsed) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrGPGNoEmailFound represents a "ErrGPGNoEmailFound" kind of error.
+type ErrGPGNoEmailFound struct {
+	FailedEmails []string
+	ID           string
+}
+
+// IsErrGPGNoEmailFound checks if an error is a ErrGPGNoEmailFound.
+func IsErrGPGNoEmailFound(err error) bool {
+	_, ok := err.(ErrGPGNoEmailFound)
+	return ok
+}
+
+func (err ErrGPGNoEmailFound) Error() string {
+	return fmt.Sprintf("none of the emails attached to the GPG key could be found: %v", err.FailedEmails)
+}
+
+// ErrGPGInvalidTokenSignature represents a "ErrGPGInvalidTokenSignature" kind of error.
+type ErrGPGInvalidTokenSignature struct {
+	Wrapped error
+	ID      string
+}
+
+// IsErrGPGInvalidTokenSignature checks if an error is a ErrGPGInvalidTokenSignature.
+func IsErrGPGInvalidTokenSignature(err error) bool {
+	_, ok := err.(ErrGPGInvalidTokenSignature)
+	return ok
+}
+
+func (err ErrGPGInvalidTokenSignature) Error() string {
+	return "the provided signature does not sign the token with the provided key"
+}
+
+// ErrGPGKeyParsing represents a "ErrGPGKeyParsing" kind of error.
+type ErrGPGKeyParsing struct {
+	ParseError error
+}
+
+// IsErrGPGKeyParsing checks if an error is a ErrGPGKeyParsing.
+func IsErrGPGKeyParsing(err error) bool {
+	_, ok := err.(ErrGPGKeyParsing)
+	return ok
+}
+
+func (err ErrGPGKeyParsing) Error() string {
+	return fmt.Sprintf("failed to parse gpg key %s", err.ParseError.Error())
+}
+
+// ErrGPGKeyNotExist represents a "GPGKeyNotExist" kind of error.
+type ErrGPGKeyNotExist struct {
+	ID int64
+}
+
+// IsErrGPGKeyNotExist checks if an error is a ErrGPGKeyNotExist.
+func IsErrGPGKeyNotExist(err error) bool {
+	_, ok := err.(ErrGPGKeyNotExist)
+	return ok
+}
+
+func (err ErrGPGKeyNotExist) Error() string {
+	return fmt.Sprintf("public gpg key does not exist [id: %d]", err.ID)
+}
+
+func (err ErrGPGKeyNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrGPGKeyImportNotExist represents a "GPGKeyImportNotExist" kind of error.
+type ErrGPGKeyImportNotExist struct {
+	ID string
+}
+
+// IsErrGPGKeyImportNotExist checks if an error is a ErrGPGKeyImportNotExist.
+func IsErrGPGKeyImportNotExist(err error) bool {
+	_, ok := err.(ErrGPGKeyImportNotExist)
+	return ok
+}
+
+func (err ErrGPGKeyImportNotExist) Error() string {
+	return fmt.Sprintf("public gpg key import does not exist [id: %s]", err.ID)
+}
+
+func (err ErrGPGKeyImportNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrGPGKeyIDAlreadyUsed represents a "GPGKeyIDAlreadyUsed" kind of error.
+type ErrGPGKeyIDAlreadyUsed struct {
+	KeyID string
+}
+
+// IsErrGPGKeyIDAlreadyUsed checks if an error is a ErrKeyNameAlreadyUsed.
+func IsErrGPGKeyIDAlreadyUsed(err error) bool {
+	_, ok := err.(ErrGPGKeyIDAlreadyUsed)
+	return ok
+}
+
+func (err ErrGPGKeyIDAlreadyUsed) Error() string {
+	return fmt.Sprintf("public key already exists [key_id: %s]", err.KeyID)
+}
+
+func (err ErrGPGKeyIDAlreadyUsed) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrGPGKeyAccessDenied represents a "GPGKeyAccessDenied" kind of Error.
+type ErrGPGKeyAccessDenied struct {
+	UserID int64
+	KeyID  int64
+}
+
+// IsErrGPGKeyAccessDenied checks if an error is a ErrGPGKeyAccessDenied.
+func IsErrGPGKeyAccessDenied(err error) bool {
+	_, ok := err.(ErrGPGKeyAccessDenied)
+	return ok
+}
+
+// Error pretty-prints an error of type ErrGPGKeyAccessDenied.
+func (err ErrGPGKeyAccessDenied) Error() string {
+	return fmt.Sprintf("user does not have access to the key [user_id: %d, key_id: %d]",
+		err.UserID, err.KeyID)
+}
+
+func (err ErrGPGKeyAccessDenied) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrKeyAccessDenied represents a "KeyAccessDenied" kind of error.
+type ErrKeyAccessDenied struct {
+	UserID int64
+	KeyID  int64
+	Note   string
+}
+
+// IsErrKeyAccessDenied checks if an error is a ErrKeyAccessDenied.
+func IsErrKeyAccessDenied(err error) bool {
+	_, ok := err.(ErrKeyAccessDenied)
+	return ok
+}
+
+func (err ErrKeyAccessDenied) Error() string {
+	return fmt.Sprintf("user does not have access to the key [user_id: %d, key_id: %d, note: %s]",
+		err.UserID, err.KeyID, err.Note)
+}
+
+func (err ErrKeyAccessDenied) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrDeployKeyNotExist represents a "DeployKeyNotExist" kind of error.
+type ErrDeployKeyNotExist struct {
+	ID     int64
+	KeyID  int64
+	RepoID int64
+}
+
+// IsErrDeployKeyNotExist checks if an error is a ErrDeployKeyNotExist.
+func IsErrDeployKeyNotExist(err error) bool {
+	_, ok := err.(ErrDeployKeyNotExist)
+	return ok
+}
+
+func (err ErrDeployKeyNotExist) Error() string {
+	return fmt.Sprintf("Deploy key does not exist [id: %d, key_id: %d, repo_id: %d]", err.ID, err.KeyID, err.RepoID)
+}
+
+func (err ErrDeployKeyNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrDeployKeyAlreadyExist represents a "DeployKeyAlreadyExist" kind of error.
+type ErrDeployKeyAlreadyExist struct {
+	KeyID  int64
+	RepoID int64
+}
+
+// IsErrDeployKeyAlreadyExist checks if an error is a ErrDeployKeyAlreadyExist.
+func IsErrDeployKeyAlreadyExist(err error) bool {
+	_, ok := err.(ErrDeployKeyAlreadyExist)
+	return ok
+}
+
+func (err ErrDeployKeyAlreadyExist) Error() string {
+	return fmt.Sprintf("public key already exists [key_id: %d, repo_id: %d]", err.KeyID, err.RepoID)
+}
+
+func (err ErrDeployKeyAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrDeployKeyNameAlreadyUsed represents a "DeployKeyNameAlreadyUsed" kind of error.
+type ErrDeployKeyNameAlreadyUsed struct {
+	RepoID int64
+	Name   string
+}
+
+// IsErrDeployKeyNameAlreadyUsed checks if an error is a ErrDeployKeyNameAlreadyUsed.
+func IsErrDeployKeyNameAlreadyUsed(err error) bool {
+	_, ok := err.(ErrDeployKeyNameAlreadyUsed)
+	return ok
+}
+
+func (err ErrDeployKeyNameAlreadyUsed) Error() string {
+	return fmt.Sprintf("public key with name already exists [repo_id: %d, name: %s]", err.RepoID, err.Name)
+}
+
+func (err ErrDeployKeyNameAlreadyUsed) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrSSHInvalidTokenSignature represents a "ErrSSHInvalidTokenSignature" kind of error.
+type ErrSSHInvalidTokenSignature struct {
+	Wrapped     error
+	Fingerprint string
+}
+
+// IsErrSSHInvalidTokenSignature checks if an error is a ErrSSHInvalidTokenSignature.
+func IsErrSSHInvalidTokenSignature(err error) bool {
+	_, ok := err.(ErrSSHInvalidTokenSignature)
+	return ok
+}
+
+func (err ErrSSHInvalidTokenSignature) Error() string {
+	return "the provided signature does not sign the token with the provided key"
+}
+
+func (err ErrSSHInvalidTokenSignature) Unwrap() error {
+	return util.ErrInvalidArgument
+}
diff --git a/models/asymkey/gpg_key.go b/models/asymkey/gpg_key.go
new file mode 100644
index 0000000..6e2914e
--- /dev/null
+++ b/models/asymkey/gpg_key.go
@@ -0,0 +1,273 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/ProtonMail/go-crypto/openpgp"
+	"github.com/ProtonMail/go-crypto/openpgp/packet"
+	"xorm.io/builder"
+)
+
+// GPGKey represents a GPG key.
+type GPGKey struct {
+	ID                int64              `xorm:"pk autoincr"`
+	OwnerID           int64              `xorm:"INDEX NOT NULL"`
+	KeyID             string             `xorm:"INDEX CHAR(16) NOT NULL"`
+	PrimaryKeyID      string             `xorm:"CHAR(16)"`
+	Content           string             `xorm:"MEDIUMTEXT NOT NULL"`
+	CreatedUnix       timeutil.TimeStamp `xorm:"created"`
+	ExpiredUnix       timeutil.TimeStamp
+	AddedUnix         timeutil.TimeStamp
+	SubsKey           []*GPGKey `xorm:"-"`
+	Emails            []*user_model.EmailAddress
+	Verified          bool `xorm:"NOT NULL DEFAULT false"`
+	CanSign           bool
+	CanEncryptComms   bool
+	CanEncryptStorage bool
+	CanCertify        bool
+}
+
+func init() {
+	db.RegisterModel(new(GPGKey))
+}
+
+// BeforeInsert will be invoked by XORM before inserting a record
+func (key *GPGKey) BeforeInsert() {
+	key.AddedUnix = timeutil.TimeStampNow()
+}
+
+func (key *GPGKey) LoadSubKeys(ctx context.Context) error {
+	if err := db.GetEngine(ctx).Where("primary_key_id=?", key.KeyID).Find(&key.SubsKey); err != nil {
+		return fmt.Errorf("find Sub GPGkeys[%s]: %v", key.KeyID, err)
+	}
+	return nil
+}
+
+// PaddedKeyID show KeyID padded to 16 characters
+func (key *GPGKey) PaddedKeyID() string {
+	return PaddedKeyID(key.KeyID)
+}
+
+// PaddedKeyID show KeyID padded to 16 characters
+func PaddedKeyID(keyID string) string {
+	if len(keyID) > 15 {
+		return keyID
+	}
+	zeros := "0000000000000000"
+	return zeros[0:16-len(keyID)] + keyID
+}
+
+type FindGPGKeyOptions struct {
+	db.ListOptions
+	OwnerID        int64
+	KeyID          string
+	IncludeSubKeys bool
+}
+
+func (opts FindGPGKeyOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if !opts.IncludeSubKeys {
+		cond = cond.And(builder.Eq{"primary_key_id": ""})
+	}
+
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+	if opts.KeyID != "" {
+		cond = cond.And(builder.Eq{"key_id": opts.KeyID})
+	}
+	return cond
+}
+
+func GetGPGKeyForUserByID(ctx context.Context, ownerID, keyID int64) (*GPGKey, error) {
+	key := new(GPGKey)
+	has, err := db.GetEngine(ctx).Where("id=? AND owner_id=?", keyID, ownerID).Get(key)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrGPGKeyNotExist{keyID}
+	}
+	return key, nil
+}
+
+// GPGKeyToEntity retrieve the imported key and the traducted entity
+func GPGKeyToEntity(ctx context.Context, k *GPGKey) (*openpgp.Entity, error) {
+	impKey, err := GetGPGImportByKeyID(ctx, k.KeyID)
+	if err != nil {
+		return nil, err
+	}
+	keys, err := checkArmoredGPGKeyString(impKey.Content)
+	if err != nil {
+		return nil, err
+	}
+	return keys[0], err
+}
+
+// parseSubGPGKey parse a sub Key
+func parseSubGPGKey(ownerID int64, primaryID string, pubkey *packet.PublicKey, expiry time.Time) (*GPGKey, error) {
+	content, err := base64EncPubKey(pubkey)
+	if err != nil {
+		return nil, err
+	}
+	return &GPGKey{
+		OwnerID:           ownerID,
+		KeyID:             pubkey.KeyIdString(),
+		PrimaryKeyID:      primaryID,
+		Content:           content,
+		CreatedUnix:       timeutil.TimeStamp(pubkey.CreationTime.Unix()),
+		ExpiredUnix:       timeutil.TimeStamp(expiry.Unix()),
+		CanSign:           pubkey.CanSign(),
+		CanEncryptComms:   pubkey.PubKeyAlgo.CanEncrypt(),
+		CanEncryptStorage: pubkey.PubKeyAlgo.CanEncrypt(),
+		CanCertify:        pubkey.PubKeyAlgo.CanSign(),
+	}, nil
+}
+
+// parseGPGKey parse a PrimaryKey entity (primary key + subs keys + self-signature)
+func parseGPGKey(ctx context.Context, ownerID int64, e *openpgp.Entity, verified bool) (*GPGKey, error) {
+	pubkey := e.PrimaryKey
+	expiry := getExpiryTime(e)
+
+	// Parse Subkeys
+	subkeys := make([]*GPGKey, len(e.Subkeys))
+	for i, k := range e.Subkeys {
+		subKeyExpiry := expiry
+		if k.Sig.KeyLifetimeSecs != nil {
+			subKeyExpiry = k.PublicKey.CreationTime.Add(time.Duration(*k.Sig.KeyLifetimeSecs) * time.Second)
+		}
+
+		subs, err := parseSubGPGKey(ownerID, pubkey.KeyIdString(), k.PublicKey, subKeyExpiry)
+		if err != nil {
+			return nil, ErrGPGKeyParsing{ParseError: err}
+		}
+		subkeys[i] = subs
+	}
+
+	// Check emails
+	userEmails, err := user_model.GetEmailAddresses(ctx, ownerID)
+	if err != nil {
+		return nil, err
+	}
+
+	emails := make([]*user_model.EmailAddress, 0, len(e.Identities))
+	for _, ident := range e.Identities {
+		// Check if the identity is revoked.
+		if ident.Revoked(time.Now()) {
+			continue
+		}
+		email := strings.ToLower(strings.TrimSpace(ident.UserId.Email))
+		for _, e := range userEmails {
+			if e.IsActivated && e.LowerEmail == email {
+				emails = append(emails, e)
+				break
+			}
+		}
+	}
+
+	if !verified {
+		// In the case no email as been found
+		if len(emails) == 0 {
+			failedEmails := make([]string, 0, len(e.Identities))
+			for _, ident := range e.Identities {
+				failedEmails = append(failedEmails, ident.UserId.Email)
+			}
+			return nil, ErrGPGNoEmailFound{failedEmails, e.PrimaryKey.KeyIdString()}
+		}
+	}
+
+	content, err := base64EncPubKey(pubkey)
+	if err != nil {
+		return nil, err
+	}
+	return &GPGKey{
+		OwnerID:           ownerID,
+		KeyID:             pubkey.KeyIdString(),
+		PrimaryKeyID:      "",
+		Content:           content,
+		CreatedUnix:       timeutil.TimeStamp(pubkey.CreationTime.Unix()),
+		ExpiredUnix:       timeutil.TimeStamp(expiry.Unix()),
+		Emails:            emails,
+		SubsKey:           subkeys,
+		Verified:          verified,
+		CanSign:           pubkey.CanSign(),
+		CanEncryptComms:   pubkey.PubKeyAlgo.CanEncrypt(),
+		CanEncryptStorage: pubkey.PubKeyAlgo.CanEncrypt(),
+		CanCertify:        pubkey.PubKeyAlgo.CanSign(),
+	}, nil
+}
+
+// deleteGPGKey does the actual key deletion
+func deleteGPGKey(ctx context.Context, keyID string) (int64, error) {
+	if keyID == "" {
+		return 0, fmt.Errorf("empty KeyId forbidden") // Should never happen but just to be sure
+	}
+	// Delete imported key
+	n, err := db.GetEngine(ctx).Where("key_id=?", keyID).Delete(new(GPGKeyImport))
+	if err != nil {
+		return n, err
+	}
+	return db.GetEngine(ctx).Where("key_id=?", keyID).Or("primary_key_id=?", keyID).Delete(new(GPGKey))
+}
+
+// DeleteGPGKey deletes GPG key information in database.
+func DeleteGPGKey(ctx context.Context, doer *user_model.User, id int64) (err error) {
+	key, err := GetGPGKeyForUserByID(ctx, doer.ID, id)
+	if err != nil {
+		if IsErrGPGKeyNotExist(err) {
+			return nil
+		}
+		return fmt.Errorf("GetPublicKeyByID: %w", err)
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err = deleteGPGKey(ctx, key.KeyID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func checkKeyEmails(ctx context.Context, email string, keys ...*GPGKey) (bool, string) {
+	uid := int64(0)
+	var userEmails []*user_model.EmailAddress
+	var user *user_model.User
+	for _, key := range keys {
+		for _, e := range key.Emails {
+			if e.IsActivated && (email == "" || strings.EqualFold(e.Email, email)) {
+				return true, e.Email
+			}
+		}
+		if key.Verified && key.OwnerID != 0 {
+			if uid != key.OwnerID {
+				userEmails, _ = user_model.GetEmailAddresses(ctx, key.OwnerID)
+				uid = key.OwnerID
+				user = &user_model.User{ID: uid}
+				_, _ = user_model.GetUser(ctx, user)
+			}
+			for _, e := range userEmails {
+				if e.IsActivated && (email == "" || strings.EqualFold(e.Email, email)) {
+					return true, e.Email
+				}
+			}
+			if user.KeepEmailPrivate && strings.EqualFold(email, user.GetEmail()) {
+				return true, user.GetEmail()
+			}
+		}
+	}
+	return false, email
+}
diff --git a/models/asymkey/gpg_key_add.go b/models/asymkey/gpg_key_add.go
new file mode 100644
index 0000000..6c0f6e0
--- /dev/null
+++ b/models/asymkey/gpg_key_add.go
@@ -0,0 +1,167 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/ProtonMail/go-crypto/openpgp"
+)
+
+//   __________________  ________   ____  __.
+//  /  _____/\______   \/  _____/  |    |/ _|____ ___.__.
+// /   \  ___ |     ___/   \  ___  |      <_/ __ <   |  |
+// \    \_\  \|    |   \    \_\  \ |    |  \  ___/\___  |
+//  \______  /|____|    \______  / |____|__ \___  > ____|
+//         \/                  \/          \/   \/\/
+//    _____       .___  .___
+//   /  _  \    __| _/__| _/
+//	/  /_\  \  / __ |/ __ |
+// /    |    \/ /_/ / /_/ |
+// \____|__  /\____ \____ |
+//         \/      \/    \/
+
+// This file contains functions relating to adding GPG Keys
+
+// addGPGKey add key, import and subkeys to database
+func addGPGKey(ctx context.Context, key *GPGKey, content string) (err error) {
+	// Add GPGKeyImport
+	if err = db.Insert(ctx, &GPGKeyImport{
+		KeyID:   key.KeyID,
+		Content: content,
+	}); err != nil {
+		return err
+	}
+	// Save GPG primary key.
+	if err = db.Insert(ctx, key); err != nil {
+		return err
+	}
+	// Save GPG subs key.
+	for _, subkey := range key.SubsKey {
+		if err := addGPGSubKey(ctx, subkey); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// addGPGSubKey add subkeys to database
+func addGPGSubKey(ctx context.Context, key *GPGKey) (err error) {
+	// Save GPG primary key.
+	if err = db.Insert(ctx, key); err != nil {
+		return err
+	}
+	// Save GPG subs key.
+	for _, subkey := range key.SubsKey {
+		if err := addGPGSubKey(ctx, subkey); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// AddGPGKey adds new public key to database.
+func AddGPGKey(ctx context.Context, ownerID int64, content, token, signature string) ([]*GPGKey, error) {
+	ekeys, err := checkArmoredGPGKeyString(content)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	keys := make([]*GPGKey, 0, len(ekeys))
+
+	verified := false
+	// Handle provided signature
+	if signature != "" {
+		signer, err := openpgp.CheckArmoredDetachedSignature(ekeys, strings.NewReader(token), strings.NewReader(signature), nil)
+		if err != nil {
+			signer, err = openpgp.CheckArmoredDetachedSignature(ekeys, strings.NewReader(token+"\n"), strings.NewReader(signature), nil)
+		}
+		if err != nil {
+			signer, err = openpgp.CheckArmoredDetachedSignature(ekeys, strings.NewReader(token+"\r\n"), strings.NewReader(signature), nil)
+		}
+		if err != nil {
+			log.Error("Unable to validate token signature. Error: %v", err)
+			return nil, ErrGPGInvalidTokenSignature{
+				ID:      ekeys[0].PrimaryKey.KeyIdString(),
+				Wrapped: err,
+			}
+		}
+		ekeys = []*openpgp.Entity{signer}
+		verified = true
+	}
+
+	if len(ekeys) > 1 {
+		id2key := map[string]*openpgp.Entity{}
+		newEKeys := make([]*openpgp.Entity, 0, len(ekeys))
+		for _, ekey := range ekeys {
+			id := ekey.PrimaryKey.KeyIdString()
+			if original, has := id2key[id]; has {
+				// Coalesce this with the other one
+				for _, subkey := range ekey.Subkeys {
+					if subkey.PublicKey == nil {
+						continue
+					}
+					found := false
+
+					for _, originalSubkey := range original.Subkeys {
+						if originalSubkey.PublicKey == nil {
+							continue
+						}
+						if originalSubkey.PublicKey.KeyId == subkey.PublicKey.KeyId {
+							found = true
+							break
+						}
+					}
+					if !found {
+						original.Subkeys = append(original.Subkeys, subkey)
+					}
+				}
+				for name, identity := range ekey.Identities {
+					if _, has := original.Identities[name]; has {
+						continue
+					}
+					original.Identities[name] = identity
+				}
+				continue
+			}
+			id2key[id] = ekey
+			newEKeys = append(newEKeys, ekey)
+		}
+		ekeys = newEKeys
+	}
+
+	for _, ekey := range ekeys {
+		// Key ID cannot be duplicated.
+		has, err := db.GetEngine(ctx).Where("key_id=?", ekey.PrimaryKey.KeyIdString()).
+			Get(new(GPGKey))
+		if err != nil {
+			return nil, err
+		} else if has {
+			return nil, ErrGPGKeyIDAlreadyUsed{ekey.PrimaryKey.KeyIdString()}
+		}
+
+		// Get DB session
+
+		key, err := parseGPGKey(ctx, ownerID, ekey, verified)
+		if err != nil {
+			return nil, err
+		}
+
+		if err = addGPGKey(ctx, key, content); err != nil {
+			return nil, err
+		}
+		keys = append(keys, key)
+	}
+	return keys, committer.Commit()
+}
diff --git a/models/asymkey/gpg_key_commit_verification.go b/models/asymkey/gpg_key_commit_verification.go
new file mode 100644
index 0000000..9aa6064
--- /dev/null
+++ b/models/asymkey/gpg_key_commit_verification.go
@@ -0,0 +1,63 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+)
+
+//   __________________  ________   ____  __.
+//  /  _____/\______   \/  _____/  |    |/ _|____ ___.__.
+// /   \  ___ |     ___/   \  ___  |      <_/ __ <   |  |
+// \    \_\  \|    |   \    \_\  \ |    |  \  ___/\___  |
+//  \______  /|____|    \______  / |____|__ \___  > ____|
+//         \/                  \/          \/   \/\/
+// _________                        .__  __
+// \_   ___ \  ____   _____   _____ |__|/  |_
+// /    \  \/ /  _ \ /     \ /     \|  \   __\
+// \     \___(  <_> )  Y Y  \  Y Y  \  ||  |
+//  \______  /\____/|__|_|  /__|_|  /__||__|
+//         \/             \/      \/
+// ____   ____           .__  _____.__               __  .__
+// \   \ /   /___________|__|/ ____\__| ____ _____ _/  |_|__| ____   ____
+//  \   Y   // __ \_  __ \  \   __\|  |/ ___\\__  \\   __\  |/  _ \ /    \
+//   \     /\  ___/|  | \/  ||  |  |  \  \___ / __ \|  | |  (  <_> )   |  \
+//    \___/  \___  >__|  |__||__|  |__|\___  >____  /__| |__|\____/|___|  /
+//               \/                        \/     \/                    \/
+
+// This file provides functions relating commit verification
+
+// SignCommit represents a commit with validation of signature.
+type SignCommit struct {
+	Verification *ObjectVerification
+	*user_model.UserCommit
+}
+
+// ParseCommitsWithSignature checks if signaute of commits are corresponding to users gpg keys.
+func ParseCommitsWithSignature(ctx context.Context, oldCommits []*user_model.UserCommit, repoTrustModel repo_model.TrustModelType, isOwnerMemberCollaborator func(*user_model.User) (bool, error)) []*SignCommit {
+	newCommits := make([]*SignCommit, 0, len(oldCommits))
+	keyMap := map[string]bool{}
+
+	for _, c := range oldCommits {
+		o := commitToGitObject(c.Commit)
+		signCommit := &SignCommit{
+			UserCommit:   c,
+			Verification: ParseObjectWithSignature(ctx, &o),
+		}
+
+		_ = CalculateTrustStatus(signCommit.Verification, repoTrustModel, isOwnerMemberCollaborator, &keyMap)
+
+		newCommits = append(newCommits, signCommit)
+	}
+	return newCommits
+}
+
+func ParseCommitWithSignature(ctx context.Context, c *git.Commit) *ObjectVerification {
+	o := commitToGitObject(c)
+	return ParseObjectWithSignature(ctx, &o)
+}
diff --git a/models/asymkey/gpg_key_common.go b/models/asymkey/gpg_key_common.go
new file mode 100644
index 0000000..db1912c
--- /dev/null
+++ b/models/asymkey/gpg_key_common.go
@@ -0,0 +1,146 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bytes"
+	"crypto"
+	"encoding/base64"
+	"fmt"
+	"hash"
+	"io"
+	"strings"
+	"time"
+
+	"github.com/ProtonMail/go-crypto/openpgp"
+	"github.com/ProtonMail/go-crypto/openpgp/armor"
+	"github.com/ProtonMail/go-crypto/openpgp/packet"
+)
+
+//   __________________  ________   ____  __.
+//  /  _____/\______   \/  _____/  |    |/ _|____ ___.__.
+// /   \  ___ |     ___/   \  ___  |      <_/ __ <   |  |
+// \    \_\  \|    |   \    \_\  \ |    |  \  ___/\___  |
+//  \______  /|____|    \______  / |____|__ \___  > ____|
+//         \/                  \/          \/   \/\/
+// _________
+// \_   ___ \  ____   _____   _____   ____   ____
+// /    \  \/ /  _ \ /     \ /     \ /  _ \ /    \
+// \     \___(  <_> )  Y Y  \  Y Y  (  <_> )   |  \
+//  \______  /\____/|__|_|  /__|_|  /\____/|___|  /
+//         \/             \/      \/            \/
+
+// This file provides common functions relating to GPG Keys
+
+// checkArmoredGPGKeyString checks if the given key string is a valid GPG armored key.
+// The function returns the actual public key on success
+func checkArmoredGPGKeyString(content string) (openpgp.EntityList, error) {
+	list, err := openpgp.ReadArmoredKeyRing(strings.NewReader(content))
+	if err != nil {
+		return nil, ErrGPGKeyParsing{err}
+	}
+	return list, nil
+}
+
+// base64EncPubKey encode public key content to base 64
+func base64EncPubKey(pubkey *packet.PublicKey) (string, error) {
+	var w bytes.Buffer
+	err := pubkey.Serialize(&w)
+	if err != nil {
+		return "", err
+	}
+	return base64.StdEncoding.EncodeToString(w.Bytes()), nil
+}
+
+func readerFromBase64(s string) (io.Reader, error) {
+	bs, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+	return bytes.NewBuffer(bs), nil
+}
+
+// base64DecPubKey decode public key content from base 64
+func base64DecPubKey(content string) (*packet.PublicKey, error) {
+	b, err := readerFromBase64(content)
+	if err != nil {
+		return nil, err
+	}
+	// Read key
+	p, err := packet.Read(b)
+	if err != nil {
+		return nil, err
+	}
+	// Check type
+	pkey, ok := p.(*packet.PublicKey)
+	if !ok {
+		return nil, fmt.Errorf("key is not a public key")
+	}
+	return pkey, nil
+}
+
+// getExpiryTime extract the expire time of primary key based on sig
+func getExpiryTime(e *openpgp.Entity) time.Time {
+	expiry := time.Time{}
+	// Extract self-sign for expire date based on : https://github.com/golang/crypto/blob/master/openpgp/keys.go#L165
+	var selfSig *packet.Signature
+	for _, ident := range e.Identities {
+		if selfSig == nil {
+			selfSig = ident.SelfSignature
+		} else if ident.SelfSignature != nil && ident.SelfSignature.IsPrimaryId != nil && *ident.SelfSignature.IsPrimaryId {
+			selfSig = ident.SelfSignature
+			break
+		}
+	}
+	if selfSig.KeyLifetimeSecs != nil {
+		expiry = e.PrimaryKey.CreationTime.Add(time.Duration(*selfSig.KeyLifetimeSecs) * time.Second)
+	}
+	return expiry
+}
+
+func populateHash(hashFunc crypto.Hash, msg []byte) (hash.Hash, error) {
+	h := hashFunc.New()
+	if _, err := h.Write(msg); err != nil {
+		return nil, err
+	}
+	return h, nil
+}
+
+// readArmoredSign read an armored signature block with the given type. https://sourcegraph.com/github.com/golang/crypto/-/blob/openpgp/read.go#L24:6-24:17
+func readArmoredSign(r io.Reader) (body io.Reader, err error) {
+	block, err := armor.Decode(r)
+	if err != nil {
+		return nil, err
+	}
+	if block.Type != openpgp.SignatureType {
+		return nil, fmt.Errorf("expected %q, got: %s", openpgp.SignatureType, block.Type)
+	}
+	return block.Body, nil
+}
+
+func extractSignature(s string) (*packet.Signature, error) {
+	r, err := readArmoredSign(strings.NewReader(s))
+	if err != nil {
+		return nil, fmt.Errorf("Failed to read signature armor")
+	}
+	p, err := packet.Read(r)
+	if err != nil {
+		return nil, fmt.Errorf("Failed to read signature packet")
+	}
+	sig, ok := p.(*packet.Signature)
+	if !ok {
+		return nil, fmt.Errorf("Packet is not a signature")
+	}
+	return sig, nil
+}
+
+func tryGetKeyIDFromSignature(sig *packet.Signature) string {
+	if sig.IssuerKeyId != nil && (*sig.IssuerKeyId) != 0 {
+		return fmt.Sprintf("%016X", *sig.IssuerKeyId)
+	}
+	if len(sig.IssuerFingerprint) > 0 {
+		return fmt.Sprintf("%016X", sig.IssuerFingerprint[12:20])
+	}
+	return ""
+}
diff --git a/models/asymkey/gpg_key_import.go b/models/asymkey/gpg_key_import.go
new file mode 100644
index 0000000..c9d46d2
--- /dev/null
+++ b/models/asymkey/gpg_key_import.go
@@ -0,0 +1,47 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+//    __________________  ________   ____  __.
+//   /  _____/\______   \/  _____/  |    |/ _|____ ___.__.
+//  /   \  ___ |     ___/   \  ___  |      <_/ __ <   |  |
+//  \    \_\  \|    |   \    \_\  \ |    |  \  ___/\___  |
+//   \______  /|____|    \______  / |____|__ \___  > ____|
+//          \/                  \/          \/   \/\/
+//  .___                              __
+//  |   | _____ ______   ____________/  |_
+//  |   |/     \\____ \ /  _ \_  __ \   __\
+//  |   |  Y Y  \  |_> >  <_> )  | \/|  |
+//  |___|__|_|  /   __/ \____/|__|   |__|
+//            \/|__|
+
+// This file contains functions related to the original import of a key
+
+// GPGKeyImport the original import of key
+type GPGKeyImport struct {
+	KeyID   string `xorm:"pk CHAR(16) NOT NULL"`
+	Content string `xorm:"MEDIUMTEXT NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(GPGKeyImport))
+}
+
+// GetGPGImportByKeyID returns the import public armored key by given KeyID.
+func GetGPGImportByKeyID(ctx context.Context, keyID string) (*GPGKeyImport, error) {
+	key := new(GPGKeyImport)
+	has, err := db.GetEngine(ctx).ID(keyID).Get(key)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrGPGKeyImportNotExist{keyID}
+	}
+	return key, nil
+}
diff --git a/models/asymkey/gpg_key_list.go b/models/asymkey/gpg_key_list.go
new file mode 100644
index 0000000..89548e4
--- /dev/null
+++ b/models/asymkey/gpg_key_list.go
@@ -0,0 +1,38 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+type GPGKeyList []*GPGKey
+
+func (keys GPGKeyList) keyIDs() []string {
+	ids := make([]string, len(keys))
+	for i, key := range keys {
+		ids[i] = key.KeyID
+	}
+	return ids
+}
+
+func (keys GPGKeyList) LoadSubKeys(ctx context.Context) error {
+	subKeys := make([]*GPGKey, 0, len(keys))
+	if err := db.GetEngine(ctx).In("primary_key_id", keys.keyIDs()).Find(&subKeys); err != nil {
+		return err
+	}
+	subKeysMap := make(map[string][]*GPGKey, len(subKeys))
+	for _, key := range subKeys {
+		subKeysMap[key.PrimaryKeyID] = append(subKeysMap[key.PrimaryKeyID], key)
+	}
+
+	for _, key := range keys {
+		if subKeys, ok := subKeysMap[key.KeyID]; ok {
+			key.SubsKey = subKeys
+		}
+	}
+	return nil
+}
diff --git a/models/asymkey/gpg_key_object_verification.go b/models/asymkey/gpg_key_object_verification.go
new file mode 100644
index 0000000..24d72a5
--- /dev/null
+++ b/models/asymkey/gpg_key_object_verification.go
@@ -0,0 +1,520 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"hash"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/ProtonMail/go-crypto/openpgp/packet"
+)
+
+// This file provides functions related to object (commit, tag) verification
+
+// ObjectVerification represents a commit validation of signature
+type ObjectVerification struct {
+	Verified       bool
+	Warning        bool
+	Reason         string
+	SigningUser    *user_model.User
+	CommittingUser *user_model.User
+	SigningEmail   string
+	SigningKey     *GPGKey
+	SigningSSHKey  *PublicKey
+	TrustStatus    string
+}
+
+const (
+	// BadSignature is used as the reason when the signature has a KeyID that is in the db
+	// but no key that has that ID verifies the signature. This is a suspicious failure.
+	BadSignature = "gpg.error.probable_bad_signature"
+	// BadDefaultSignature is used as the reason when the signature has a KeyID that matches the
+	// default Key but is not verified by the default key. This is a suspicious failure.
+	BadDefaultSignature = "gpg.error.probable_bad_default_signature"
+	// NoKeyFound is used as the reason when no key can be found to verify the signature.
+	NoKeyFound = "gpg.error.no_gpg_keys_found"
+)
+
+type GitObject struct {
+	ID        git.ObjectID
+	Committer *git.Signature
+	Signature *git.ObjectSignature
+	Commit    *git.Commit
+}
+
+func commitToGitObject(c *git.Commit) GitObject {
+	return GitObject{
+		ID:        c.ID,
+		Committer: c.Committer,
+		Signature: c.Signature,
+		Commit:    c,
+	}
+}
+
+func tagToGitObject(t *git.Tag, gitRepo *git.Repository) GitObject {
+	commit, _ := t.Commit(gitRepo)
+	return GitObject{
+		ID:        t.ID,
+		Committer: t.Tagger,
+		Signature: t.Signature,
+		Commit:    commit,
+	}
+}
+
+// ParseObjectWithSignature check if signature is good against keystore.
+func ParseObjectWithSignature(ctx context.Context, c *GitObject) *ObjectVerification {
+	var committer *user_model.User
+	if c.Committer != nil {
+		var err error
+		// Find Committer account
+		committer, err = user_model.GetUserByEmail(ctx, c.Committer.Email) // This finds the user by primary email or activated email so commit will not be valid if email is not
+		if err != nil {                                                    // Skipping not user for committer
+			committer = &user_model.User{
+				Name:  c.Committer.Name,
+				Email: c.Committer.Email,
+			}
+			// We can expect this to often be an ErrUserNotExist. in the case
+			// it is not, however, it is important to log it.
+			if !user_model.IsErrUserNotExist(err) {
+				log.Error("GetUserByEmail: %v", err)
+				return &ObjectVerification{
+					CommittingUser: committer,
+					Verified:       false,
+					Reason:         "gpg.error.no_committer_account",
+				}
+			}
+		}
+	}
+
+	// If no signature just report the committer
+	if c.Signature == nil {
+		return &ObjectVerification{
+			CommittingUser: committer,
+			Verified:       false,                         // Default value
+			Reason:         "gpg.error.not_signed_commit", // Default value
+		}
+	}
+
+	// If this a SSH signature handle it differently
+	if strings.HasPrefix(c.Signature.Signature, "-----BEGIN SSH SIGNATURE-----") {
+		return ParseObjectWithSSHSignature(ctx, c, committer)
+	}
+
+	// Parsing signature
+	sig, err := extractSignature(c.Signature.Signature)
+	if err != nil { // Skipping failed to extract sign
+		log.Error("SignatureRead err: %v", err)
+		return &ObjectVerification{
+			CommittingUser: committer,
+			Verified:       false,
+			Reason:         "gpg.error.extract_sign",
+		}
+	}
+
+	keyID := tryGetKeyIDFromSignature(sig)
+	defaultReason := NoKeyFound
+
+	// First check if the sig has a keyID and if so just look at that
+	if commitVerification := hashAndVerifyForKeyID(
+		ctx,
+		sig,
+		c.Signature.Payload,
+		committer,
+		keyID,
+		setting.AppName,
+		""); commitVerification != nil {
+		if commitVerification.Reason == BadSignature {
+			defaultReason = BadSignature
+		} else {
+			return commitVerification
+		}
+	}
+
+	// Now try to associate the signature with the committer, if present
+	if committer.ID != 0 {
+		keys, err := db.Find[GPGKey](ctx, FindGPGKeyOptions{
+			OwnerID: committer.ID,
+		})
+		if err != nil { // Skipping failed to get gpg keys of user
+			log.Error("ListGPGKeys: %v", err)
+			return &ObjectVerification{
+				CommittingUser: committer,
+				Verified:       false,
+				Reason:         "gpg.error.failed_retrieval_gpg_keys",
+			}
+		}
+
+		if err := GPGKeyList(keys).LoadSubKeys(ctx); err != nil {
+			log.Error("LoadSubKeys: %v", err)
+			return &ObjectVerification{
+				CommittingUser: committer,
+				Verified:       false,
+				Reason:         "gpg.error.failed_retrieval_gpg_keys",
+			}
+		}
+
+		committerEmailAddresses, _ := user_model.GetEmailAddresses(ctx, committer.ID)
+		activated := false
+		for _, e := range committerEmailAddresses {
+			if e.IsActivated && strings.EqualFold(e.Email, c.Committer.Email) {
+				activated = true
+				break
+			}
+		}
+
+		for _, k := range keys {
+			// Pre-check (& optimization) that emails attached to key can be attached to the committer email and can validate
+			canValidate := false
+			email := ""
+			if k.Verified && activated {
+				canValidate = true
+				email = c.Committer.Email
+			}
+			if !canValidate {
+				for _, e := range k.Emails {
+					if e.IsActivated && strings.EqualFold(e.Email, c.Committer.Email) {
+						canValidate = true
+						email = e.Email
+						break
+					}
+				}
+			}
+			if !canValidate {
+				continue // Skip this key
+			}
+
+			commitVerification := hashAndVerifyWithSubKeysObjectVerification(sig, c.Signature.Payload, k, committer, committer, email)
+			if commitVerification != nil {
+				return commitVerification
+			}
+		}
+	}
+
+	if setting.Repository.Signing.SigningKey != "" && setting.Repository.Signing.SigningKey != "default" && setting.Repository.Signing.SigningKey != "none" {
+		// OK we should try the default key
+		gpgSettings := git.GPGSettings{
+			Sign:  true,
+			KeyID: setting.Repository.Signing.SigningKey,
+			Name:  setting.Repository.Signing.SigningName,
+			Email: setting.Repository.Signing.SigningEmail,
+		}
+		if err := gpgSettings.LoadPublicKeyContent(); err != nil {
+			log.Error("Error getting default signing key: %s %v", gpgSettings.KeyID, err)
+		} else if commitVerification := verifyWithGPGSettings(ctx, &gpgSettings, sig, c.Signature.Payload, committer, keyID); commitVerification != nil {
+			if commitVerification.Reason == BadSignature {
+				defaultReason = BadSignature
+			} else {
+				return commitVerification
+			}
+		}
+	}
+
+	defaultGPGSettings, err := c.Commit.GetRepositoryDefaultPublicGPGKey(false)
+	if err != nil {
+		log.Error("Error getting default public gpg key: %v", err)
+	} else if defaultGPGSettings == nil {
+		log.Warn("Unable to get defaultGPGSettings for unattached commit: %s", c.Commit.ID.String())
+	} else if defaultGPGSettings.Sign {
+		if commitVerification := verifyWithGPGSettings(ctx, defaultGPGSettings, sig, c.Signature.Payload, committer, keyID); commitVerification != nil {
+			if commitVerification.Reason == BadSignature {
+				defaultReason = BadSignature
+			} else {
+				return commitVerification
+			}
+		}
+	}
+
+	return &ObjectVerification{ // Default at this stage
+		CommittingUser: committer,
+		Verified:       false,
+		Warning:        defaultReason != NoKeyFound,
+		Reason:         defaultReason,
+		SigningKey: &GPGKey{
+			KeyID: keyID,
+		},
+	}
+}
+
+func verifyWithGPGSettings(ctx context.Context, gpgSettings *git.GPGSettings, sig *packet.Signature, payload string, committer *user_model.User, keyID string) *ObjectVerification {
+	// First try to find the key in the db
+	if commitVerification := hashAndVerifyForKeyID(ctx, sig, payload, committer, gpgSettings.KeyID, gpgSettings.Name, gpgSettings.Email); commitVerification != nil {
+		return commitVerification
+	}
+
+	// Otherwise we have to parse the key
+	ekeys, err := checkArmoredGPGKeyString(gpgSettings.PublicKeyContent)
+	if err != nil {
+		log.Error("Unable to get default signing key: %v", err)
+		return &ObjectVerification{
+			CommittingUser: committer,
+			Verified:       false,
+			Reason:         "gpg.error.generate_hash",
+		}
+	}
+	for _, ekey := range ekeys {
+		pubkey := ekey.PrimaryKey
+		content, err := base64EncPubKey(pubkey)
+		if err != nil {
+			return &ObjectVerification{
+				CommittingUser: committer,
+				Verified:       false,
+				Reason:         "gpg.error.generate_hash",
+			}
+		}
+		k := &GPGKey{
+			Content: content,
+			CanSign: pubkey.CanSign(),
+			KeyID:   pubkey.KeyIdString(),
+		}
+		for _, subKey := range ekey.Subkeys {
+			content, err := base64EncPubKey(subKey.PublicKey)
+			if err != nil {
+				return &ObjectVerification{
+					CommittingUser: committer,
+					Verified:       false,
+					Reason:         "gpg.error.generate_hash",
+				}
+			}
+			k.SubsKey = append(k.SubsKey, &GPGKey{
+				Content: content,
+				CanSign: subKey.PublicKey.CanSign(),
+				KeyID:   subKey.PublicKey.KeyIdString(),
+			})
+		}
+		if commitVerification := hashAndVerifyWithSubKeysObjectVerification(sig, payload, k, committer, &user_model.User{
+			Name:  gpgSettings.Name,
+			Email: gpgSettings.Email,
+		}, gpgSettings.Email); commitVerification != nil {
+			return commitVerification
+		}
+		if keyID == k.KeyID {
+			// This is a bad situation ... We have a key id that matches our default key but the signature doesn't match.
+			return &ObjectVerification{
+				CommittingUser: committer,
+				Verified:       false,
+				Warning:        true,
+				Reason:         BadSignature,
+			}
+		}
+	}
+	return nil
+}
+
+func verifySign(s *packet.Signature, h hash.Hash, k *GPGKey) error {
+	// Check if key can sign
+	if !k.CanSign {
+		return fmt.Errorf("key can not sign")
+	}
+	// Decode key
+	pkey, err := base64DecPubKey(k.Content)
+	if err != nil {
+		return err
+	}
+	return pkey.VerifySignature(h, s)
+}
+
+func hashAndVerify(sig *packet.Signature, payload string, k *GPGKey) (*GPGKey, error) {
+	// Generating hash of commit
+	hash, err := populateHash(sig.Hash, []byte(payload))
+	if err != nil { // Skipping as failed to generate hash
+		log.Error("PopulateHash: %v", err)
+		return nil, err
+	}
+	// We will ignore errors in verification as they don't need to be propagated up
+	err = verifySign(sig, hash, k)
+	if err != nil {
+		return nil, nil
+	}
+	return k, nil
+}
+
+func hashAndVerifyWithSubKeys(sig *packet.Signature, payload string, k *GPGKey) (*GPGKey, error) {
+	verified, err := hashAndVerify(sig, payload, k)
+	if err != nil || verified != nil {
+		return verified, err
+	}
+	for _, sk := range k.SubsKey {
+		verified, err := hashAndVerify(sig, payload, sk)
+		if err != nil || verified != nil {
+			return verified, err
+		}
+	}
+	return nil, nil
+}
+
+func hashAndVerifyWithSubKeysObjectVerification(sig *packet.Signature, payload string, k *GPGKey, committer, signer *user_model.User, email string) *ObjectVerification {
+	key, err := hashAndVerifyWithSubKeys(sig, payload, k)
+	if err != nil { // Skipping failed to generate hash
+		return &ObjectVerification{
+			CommittingUser: committer,
+			Verified:       false,
+			Reason:         "gpg.error.generate_hash",
+		}
+	}
+
+	if key != nil {
+		return &ObjectVerification{ // Everything is ok
+			CommittingUser: committer,
+			Verified:       true,
+			Reason:         fmt.Sprintf("%s / %s", signer.Name, key.KeyID),
+			SigningUser:    signer,
+			SigningKey:     key,
+			SigningEmail:   email,
+		}
+	}
+	return nil
+}
+
+func hashAndVerifyForKeyID(ctx context.Context, sig *packet.Signature, payload string, committer *user_model.User, keyID, name, email string) *ObjectVerification {
+	if keyID == "" {
+		return nil
+	}
+	keys, err := db.Find[GPGKey](ctx, FindGPGKeyOptions{
+		KeyID:          keyID,
+		IncludeSubKeys: true,
+	})
+	if err != nil {
+		log.Error("GetGPGKeysByKeyID: %v", err)
+		return &ObjectVerification{
+			CommittingUser: committer,
+			Verified:       false,
+			Reason:         "gpg.error.failed_retrieval_gpg_keys",
+		}
+	}
+	if len(keys) == 0 {
+		return nil
+	}
+	for _, key := range keys {
+		var primaryKeys []*GPGKey
+		if key.PrimaryKeyID != "" {
+			primaryKeys, err = db.Find[GPGKey](ctx, FindGPGKeyOptions{
+				KeyID:          key.PrimaryKeyID,
+				IncludeSubKeys: true,
+			})
+			if err != nil {
+				log.Error("GetGPGKeysByKeyID: %v", err)
+				return &ObjectVerification{
+					CommittingUser: committer,
+					Verified:       false,
+					Reason:         "gpg.error.failed_retrieval_gpg_keys",
+				}
+			}
+		}
+
+		activated, email := checkKeyEmails(ctx, email, append([]*GPGKey{key}, primaryKeys...)...)
+		if !activated {
+			continue
+		}
+
+		signer := &user_model.User{
+			Name:  name,
+			Email: email,
+		}
+		if key.OwnerID != 0 {
+			owner, err := user_model.GetUserByID(ctx, key.OwnerID)
+			if err == nil {
+				signer = owner
+			} else if !user_model.IsErrUserNotExist(err) {
+				log.Error("Failed to user_model.GetUserByID: %d for key ID: %d (%s) %v", key.OwnerID, key.ID, key.KeyID, err)
+				return &ObjectVerification{
+					CommittingUser: committer,
+					Verified:       false,
+					Reason:         "gpg.error.no_committer_account",
+				}
+			}
+		}
+		commitVerification := hashAndVerifyWithSubKeysObjectVerification(sig, payload, key, committer, signer, email)
+		if commitVerification != nil {
+			return commitVerification
+		}
+	}
+	// This is a bad situation ... We have a key id that is in our database but the signature doesn't match.
+	return &ObjectVerification{
+		CommittingUser: committer,
+		Verified:       false,
+		Warning:        true,
+		Reason:         BadSignature,
+	}
+}
+
+// CalculateTrustStatus will calculate the TrustStatus for a commit verification within a repository
+// There are several trust models in Gitea
+func CalculateTrustStatus(verification *ObjectVerification, repoTrustModel repo_model.TrustModelType, isOwnerMemberCollaborator func(*user_model.User) (bool, error), keyMap *map[string]bool) error {
+	if !verification.Verified {
+		return nil
+	}
+
+	// In the Committer trust model a signature is trusted if it matches the committer
+	// - it doesn't matter if they're a collaborator, the owner, Gitea or Github
+	// NB: This model is commit verification only
+	if repoTrustModel == repo_model.CommitterTrustModel {
+		// default to "unmatched"
+		verification.TrustStatus = "unmatched"
+
+		// We can only verify against users in our database but the default key will match
+		// against by email if it is not in the db.
+		if (verification.SigningUser.ID != 0 &&
+			verification.CommittingUser.ID == verification.SigningUser.ID) ||
+			(verification.SigningUser.ID == 0 && verification.CommittingUser.ID == 0 &&
+				verification.SigningUser.Email == verification.CommittingUser.Email) {
+			verification.TrustStatus = "trusted"
+		}
+		return nil
+	}
+
+	// Now we drop to the more nuanced trust models...
+	verification.TrustStatus = "trusted"
+
+	if verification.SigningUser.ID == 0 {
+		// This commit is signed by the default key - but this key is not assigned to a user in the DB.
+
+		// However in the repo_model.CollaboratorCommitterTrustModel we cannot mark this as trusted
+		// unless the default key matches the email of a non-user.
+		if repoTrustModel == repo_model.CollaboratorCommitterTrustModel && (verification.CommittingUser.ID != 0 ||
+			verification.SigningUser.Email != verification.CommittingUser.Email) {
+			verification.TrustStatus = "untrusted"
+		}
+		return nil
+	}
+
+	// Check we actually have a GPG SigningKey
+	var err error
+	if verification.SigningKey != nil {
+		var isMember bool
+		if keyMap != nil {
+			var has bool
+			isMember, has = (*keyMap)[verification.SigningKey.KeyID]
+			if !has {
+				isMember, err = isOwnerMemberCollaborator(verification.SigningUser)
+				(*keyMap)[verification.SigningKey.KeyID] = isMember
+			}
+		} else {
+			isMember, err = isOwnerMemberCollaborator(verification.SigningUser)
+		}
+
+		if !isMember {
+			verification.TrustStatus = "untrusted"
+			if verification.CommittingUser.ID != verification.SigningUser.ID {
+				// The committing user and the signing user are not the same
+				// This should be marked as questionable unless the signing user is a collaborator/team member etc.
+				verification.TrustStatus = "unmatched"
+			}
+		} else if repoTrustModel == repo_model.CollaboratorCommitterTrustModel && verification.CommittingUser.ID != verification.SigningUser.ID {
+			// The committing user and the signing user are not the same and our trustmodel states that they must match
+			verification.TrustStatus = "unmatched"
+		}
+	}
+
+	return err
+}
diff --git a/models/asymkey/gpg_key_tag_verification.go b/models/asymkey/gpg_key_tag_verification.go
new file mode 100644
index 0000000..5fd3983
--- /dev/null
+++ b/models/asymkey/gpg_key_tag_verification.go
@@ -0,0 +1,15 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/git"
+)
+
+func ParseTagWithSignature(ctx context.Context, gitRepo *git.Repository, t *git.Tag) *ObjectVerification {
+	o := tagToGitObject(t, gitRepo)
+	return ParseObjectWithSignature(ctx, &o)
+}
diff --git a/models/asymkey/gpg_key_test.go b/models/asymkey/gpg_key_test.go
new file mode 100644
index 0000000..e9aa9cf
--- /dev/null
+++ b/models/asymkey/gpg_key_test.go
@@ -0,0 +1,466 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/ProtonMail/go-crypto/openpgp/packet"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCheckArmoredGPGKeyString(t *testing.T) {
+	testGPGArmor := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=i9b7
+-----END PGP PUBLIC KEY BLOCK-----`
+
+	key, err := checkArmoredGPGKeyString(testGPGArmor)
+	require.NoError(t, err, "Could not parse a valid GPG public armored rsa key", key)
+	// TODO verify value of key
+}
+
+func TestCheckArmoredbrainpoolP256r1GPGKeyString(t *testing.T) {
+	testGPGArmor := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v2
+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ZiSe
+-----END PGP PUBLIC KEY BLOCK-----`
+
+	key, err := checkArmoredGPGKeyString(testGPGArmor)
+	require.NoError(t, err, "Could not parse a valid GPG public armored brainpoolP256r1 key", key)
+	// TODO verify value of key
+}
+
+func TestExtractSignature(t *testing.T) {
+	testGPGArmor := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=i9b7
+-----END PGP PUBLIC KEY BLOCK-----`
+	keys, err := checkArmoredGPGKeyString(testGPGArmor)
+	if !assert.NotEmpty(t, keys) {
+		return
+	}
+	ekey := keys[0]
+	require.NoError(t, err, "Could not parse a valid GPG armored key", ekey)
+
+	pubkey := ekey.PrimaryKey
+	content, err := base64EncPubKey(pubkey)
+	require.NoError(t, err, "Could not base64 encode a valid PublicKey content", ekey)
+
+	key := &GPGKey{
+		KeyID:             pubkey.KeyIdString(),
+		Content:           content,
+		CreatedUnix:       timeutil.TimeStamp(pubkey.CreationTime.Unix()),
+		CanSign:           pubkey.CanSign(),
+		CanEncryptComms:   pubkey.PubKeyAlgo.CanEncrypt(),
+		CanEncryptStorage: pubkey.PubKeyAlgo.CanEncrypt(),
+		CanCertify:        pubkey.PubKeyAlgo.CanSign(),
+	}
+
+	cannotsignkey := &GPGKey{
+		KeyID:             pubkey.KeyIdString(),
+		Content:           content,
+		CreatedUnix:       timeutil.TimeStamp(pubkey.CreationTime.Unix()),
+		CanSign:           false,
+		CanEncryptComms:   false,
+		CanEncryptStorage: false,
+		CanCertify:        false,
+	}
+
+	testGoodSigArmor := `-----BEGIN PGP SIGNATURE-----
+
+iQEzBAABCAAdFiEEEIOwJg/1vpF1itJ4roJVuKDYKOQFAljAiQIACgkQroJVuKDY
+KORvCgf6A/Ehh0r7QbO2tFEghT+/Ab+bN7jRN3zP9ed6/q/ophYmkrU0NibtbJH9
+AwFVdHxCmj78SdiRjaTKyevklXw34nvMftmvnOI4lBNUdw6KWl25/n/7wN0l2oZW
+rW3UawYpZgodXiLTYarfEimkDQmT67ArScjRA6lLbkEYKO0VdwDu+Z6yBUH3GWtm
+45RkXpnsF6AXUfuD7YxnfyyDE1A7g7zj4vVYUAfWukJjqow/LsCUgETETJOqj9q3
+52/oQDs04fVkIEtCDulcY+K/fKlukBPJf9WceNDEqiENUzN/Z1y0E+tJ07cSy4bk
+yIJb+d0OAaG8bxloO7nJq4Res1Qa8Q==
+=puvG
+-----END PGP SIGNATURE-----`
+	testGoodPayload := `tree 56ae8d2799882b20381fc11659db06c16c68c61a
+parent c7870c39e4e6b247235ca005797703ec4254613f
+author Antoine GIRARD <sapk@sapk.fr> 1489012989 +0100
+committer Antoine GIRARD <sapk@sapk.fr> 1489012989 +0100
+
+Goog GPG
+`
+
+	testBadSigArmor := `-----BEGIN PGP SIGNATURE-----
+
+iQEzBAABCAAdFiEE5yr4rn9ulbdMxJFiPYI/ySNrtNkFAljAiYkACgkQPYI/ySNr
+tNmDdQf+NXhVRiOGt0GucpjJCGrOnK/qqVUmQyRUfrqzVUdb/1/Ws84V5/wE547I
+6z3oxeBKFsJa1CtIlxYaUyVhYnDzQtphJzub+Aw3UG0E2ywiE+N7RCa1Ufl7pPxJ
+U0SD6gvNaeTDQV/Wctu8v8DkCtEd3N8cMCDWhvy/FQEDztVtzm8hMe0Vdm0ozEH6
+P0W93sDNkLC5/qpWDN44sFlYDstW5VhMrnF0r/ohfaK2kpYHhkPk7WtOoHSUwQSg
+c4gfhjvXIQrWFnII1Kr5jFGlmgNSR02qpb31VGkMzSnBhWVf2OaHS/kI49QHJakq
+AhVDEnoYLCgoDGg9c3p1Ll2452/c6Q==
+=uoGV
+-----END PGP SIGNATURE-----`
+	testBadPayload := `tree 3074ff04951956a974e8b02d57733b0766f7cf6c
+parent fd3577542f7ad1554c7c7c0eb86bb57a1324ad91
+author Antoine GIRARD <sapk@sapk.fr> 1489013107 +0100
+committer Antoine GIRARD <sapk@sapk.fr> 1489013107 +0100
+
+Unknown GPG key with good email
+`
+	// Reading Sign
+	goodSig, err := extractSignature(testGoodSigArmor)
+	require.NoError(t, err, "Could not parse a valid GPG armored signature", testGoodSigArmor)
+	badSig, err := extractSignature(testBadSigArmor)
+	require.NoError(t, err, "Could not parse a valid GPG armored signature", testBadSigArmor)
+
+	// Generating hash of commit
+	goodHash, err := populateHash(goodSig.Hash, []byte(testGoodPayload))
+	require.NoError(t, err, "Could not generate a valid hash of payload", testGoodPayload)
+	badHash, err := populateHash(badSig.Hash, []byte(testBadPayload))
+	require.NoError(t, err, "Could not generate a valid hash of payload", testBadPayload)
+
+	// Verify
+	err = verifySign(goodSig, goodHash, key)
+	require.NoError(t, err, "Could not validate a good signature")
+	err = verifySign(badSig, badHash, key)
+	require.Error(t, err, "Validate a bad signature")
+	err = verifySign(goodSig, goodHash, cannotsignkey)
+	require.Error(t, err, "Validate a bad signature with a kay that can not sign")
+}
+
+func TestCheckGPGUserEmail(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	_ = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	testEmailWithUpperCaseLetters := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1
+
+mQENBFlEBvMBCADe+EQcfv/aKbMFy7YB8e/DE+hY39sfjvdvSgeXtNhfmYvIOUjT
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+zwGhqkfITjPI7hyNN52PLANwoS0o4dLzIE65ewigx6cnRlrT2IENObxG/tlxaYg1
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+Q0KHb+QcycSgbDx0ZAvdIacuKvBBcbxrsmFUI4LR+oIup0G9gUc0roPvr014jYQL
+7f8r/8fpcN8t+I/41QHCs6L/BEIdTHW3rTQ6
+=zHo9
+-----END PGP PUBLIC KEY BLOCK-----`
+
+	keys, err := AddGPGKey(db.DefaultContext, 1, testEmailWithUpperCaseLetters, "", "")
+	require.NoError(t, err)
+	if assert.NotEmpty(t, keys) {
+		key := keys[0]
+		if assert.Len(t, key.Emails, 1) {
+			assert.Equal(t, "user1@example.com", key.Emails[0].Email)
+		}
+	}
+}
+
+func TestCheckGPGRevokedIdentity(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	require.NoError(t, db.Insert(db.DefaultContext, &user_model.EmailAddress{UID: 1, Email: "no-reply@golang.com", IsActivated: true}))
+	require.NoError(t, db.Insert(db.DefaultContext, &user_model.EmailAddress{UID: 1, Email: "revoked@golang.com", IsActivated: true}))
+	_ = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	revokedUserKey := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQENBFsgO5EBCADhREPmcjsPkXe1z7ctvyWL0S7oa9JaoGZ9oPDHFDlQxd0qlX2e
+DZJZDg0qYvVixmaULIulApq1puEsaJCn3lHUbHlb4PYKwLEywYXM28JN91KtLsz/
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+K71/ShtsZUXSQn9jlRaYR0EbojMAEQEAAYkBPAQYAQoAJhYhBOSJOSS3Dcepeq2X
+8NaBcvSOnFKDBQJbIDuRAhsMBQkDwmcAAAoJENaBcvSOnFKDkFMIAIt64bVZ8x7+
+TitH1bR4pgcNkaKmgKoZz6FXu80+SnbuEt2NnDyf1cLOSimSTILpwLIuv9Uft5Pb
+OraQbYt3xi9yrqdKqGLv80bxqK0NuryNkvh9yyx5WoG1iKqMj9/FjGghuPrRaT4l
+QinNAghGVkEy1+aXGFrG2DsOC1FFI51CC2WVTzZ5RwR2GpiNRfESsU1rZAUqf/2V
+yJl9bD5R4SUNy8oQmhOxi+gbhD4Ao34e4W0ilibslI/uawvCiOwlu5NGd8zv5n+U
+heiQvzkApQup5c+BhH5zFDFdKJ2CBByxw9+7QjMFI/wgLixKuE0Ob2kAokXf7RlB
+7qTZOahrETw=
+=IKnw
+-----END PGP PUBLIC KEY BLOCK-----
+`
+
+	keys, err := AddGPGKey(db.DefaultContext, 1, revokedUserKey, "", "")
+	require.NoError(t, err)
+	assert.Len(t, keys, 1)
+	assert.Len(t, keys[0].Emails, 1)
+	assert.EqualValues(t, "no-reply@golang.com", keys[0].Emails[0].Email)
+
+	primaryKeyID := "D68172F48E9C5283"
+	// Assert primary key
+	unittest.AssertExistsAndLoadBean(t, &GPGKey{OwnerID: 1, KeyID: primaryKeyID, Content: "xsBNBFsgO5EBCADhREPmcjsPkXe1z7ctvyWL0S7oa9JaoGZ9oPDHFDlQxd0qlX2eDZJZDg0qYvVixmaULIulApq1puEsaJCn3lHUbHlb4PYKwLEywYXM28JN91KtLsz/uaEX2KC5WqeP40utmzkNLq+oRX/xnRMgwbO7yUNVG2UlEa6eI+xOXO3YtLdmJMBWClQ066ZnOIzEo1JxnIwha1CDBMWLLfOLrg6l8InUqaXbtEBbnaIYO6fXVXELUjkxnmk7t/QOk0tXCy8muH9UDqJkwDUESY2l79XwBAcx9riX8vY7vwC34pm22fAUVLCJx1SJx0J8bkeNp38jKM2Zd9SUQqSbfBopQ4pPABEBAAE="})
+	// Assert subkey
+	unittest.AssertExistsAndLoadBean(t, &GPGKey{OwnerID: 1, KeyID: "2C56900BE5486AF8", PrimaryKeyID: primaryKeyID, Content: "zsBNBFsgO5EBCAC5INOERA2aNSYHWFeMfByShUuMQGFmyL2tWT6rwzZmUVG0GUdvoKSRhMJ+81aHxr5zmIhluegEuY99UhX+ZK6NftW2UOYjjjQZ4NPDjqOfP5dYUbHiCFRgeUxkmjwnQoSih63iSOoUt5kocR+oXXxbYmbgeOa8KGgKzDLGHI2nsy8Cni3N/enKVMMHGbJy1DXdV7uRFhBdjnRZGdmtamHcQbwGHUH+PtTa/jUSMdbtTUvXPI6dz7jDpK0BImzbXNb+r9CcudpiixuMu5gv3qyJL5EAWCXcT2j+y2VWj2HN/8bJHMoo6yf+bn6A/Cu9f0obbGVF0kJ/Y5UWmEdBG6IzABEBAAE="})
+}
+
+func TestCheckGParseGPGExpire(t *testing.T) {
+	testIssue6599 := `-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+epiDVQ==
+=VSKJ
+-----END PGP PUBLIC KEY BLOCK-----
+`
+	keys, err := checkArmoredGPGKeyString(testIssue6599)
+	require.NoError(t, err)
+	if assert.NotEmpty(t, keys) {
+		ekey := keys[0]
+		expire := getExpiryTime(ekey)
+		assert.Equal(t, time.Unix(1586105389, 0), expire)
+	}
+}
+
+func TestTryGetKeyIDFromSignature(t *testing.T) {
+	assert.Empty(t, tryGetKeyIDFromSignature(&packet.Signature{}))
+	assert.Equal(t, "038D1A3EADDBEA9C", tryGetKeyIDFromSignature(&packet.Signature{
+		IssuerKeyId: util.ToPointer(uint64(0x38D1A3EADDBEA9C)),
+	}))
+	assert.Equal(t, "038D1A3EADDBEA9C", tryGetKeyIDFromSignature(&packet.Signature{
+		IssuerFingerprint: []uint8{0xb, 0x23, 0x24, 0xc7, 0xe6, 0xfe, 0x4f, 0x3a, 0x6, 0x26, 0xc1, 0x21, 0x3, 0x8d, 0x1a, 0x3e, 0xad, 0xdb, 0xea, 0x9c},
+	}))
+}
diff --git a/models/asymkey/gpg_key_verify.go b/models/asymkey/gpg_key_verify.go
new file mode 100644
index 0000000..01812a2
--- /dev/null
+++ b/models/asymkey/gpg_key_verify.go
@@ -0,0 +1,119 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"strconv"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/log"
+)
+
+//   __________________  ________   ____  __.
+//  /  _____/\______   \/  _____/  |    |/ _|____ ___.__.
+// /   \  ___ |     ___/   \  ___  |      <_/ __ <   |  |
+// \    \_\  \|    |   \    \_\  \ |    |  \  ___/\___  |
+//  \______  /|____|    \______  / |____|__ \___  > ____|
+//         \/                  \/          \/   \/\/
+// ____   ____           .__  _____
+// \   \ /   /___________|__|/ ____\__.__.
+//  \   Y   // __ \_  __ \  \   __<   |  |
+//   \     /\  ___/|  | \/  ||  |  \___  |
+//    \___/  \___  >__|  |__||__|  / ____|
+//               \/                \/
+
+// This file provides functions relating verifying gpg keys
+
+// VerifyGPGKey marks a GPG key as verified
+func VerifyGPGKey(ctx context.Context, ownerID int64, keyID, token, signature string) (string, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return "", err
+	}
+	defer committer.Close()
+
+	key := new(GPGKey)
+
+	has, err := db.GetEngine(ctx).Where("owner_id = ? AND key_id = ?", ownerID, keyID).Get(key)
+	if err != nil {
+		return "", err
+	} else if !has {
+		return "", ErrGPGKeyNotExist{}
+	}
+
+	if err := key.LoadSubKeys(ctx); err != nil {
+		return "", err
+	}
+
+	sig, err := extractSignature(signature)
+	if err != nil {
+		return "", ErrGPGInvalidTokenSignature{
+			ID:      key.KeyID,
+			Wrapped: err,
+		}
+	}
+
+	signer, err := hashAndVerifyWithSubKeys(sig, token, key)
+	if err != nil {
+		return "", ErrGPGInvalidTokenSignature{
+			ID:      key.KeyID,
+			Wrapped: err,
+		}
+	}
+	if signer == nil {
+		signer, err = hashAndVerifyWithSubKeys(sig, token+"\n", key)
+		if err != nil {
+			return "", ErrGPGInvalidTokenSignature{
+				ID:      key.KeyID,
+				Wrapped: err,
+			}
+		}
+	}
+	if signer == nil {
+		signer, err = hashAndVerifyWithSubKeys(sig, token+"\n\n", key)
+		if err != nil {
+			return "", ErrGPGInvalidTokenSignature{
+				ID:      key.KeyID,
+				Wrapped: err,
+			}
+		}
+	}
+
+	if signer == nil {
+		log.Error("Unable to validate token signature. Error: %v", err)
+		return "", ErrGPGInvalidTokenSignature{
+			ID: key.KeyID,
+		}
+	}
+
+	if signer.PrimaryKeyID != key.KeyID && signer.KeyID != key.KeyID {
+		return "", ErrGPGKeyNotExist{}
+	}
+
+	key.Verified = true
+	if _, err := db.GetEngine(ctx).ID(key.ID).SetExpr("verified", true).Update(new(GPGKey)); err != nil {
+		return "", err
+	}
+
+	if err := committer.Commit(); err != nil {
+		return "", err
+	}
+
+	return key.KeyID, nil
+}
+
+// VerificationToken returns token for the user that will be valid in minutes (time)
+func VerificationToken(user *user_model.User, minutes int) string {
+	return base.EncodeSha256(
+		time.Now().Truncate(1*time.Minute).Add(time.Duration(minutes)*time.Minute).Format(
+			time.RFC1123Z) + ":" +
+			user.CreatedUnix.Format(time.RFC1123Z) + ":" +
+			user.Name + ":" +
+			user.Email + ":" +
+			strconv.FormatInt(user.ID, 10))
+}
diff --git a/models/asymkey/main_test.go b/models/asymkey/main_test.go
new file mode 100644
index 0000000..87b5c22
--- /dev/null
+++ b/models/asymkey/main_test.go
@@ -0,0 +1,24 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{
+			"gpg_key.yml",
+			"public_key.yml",
+			"TestParseCommitWithSSHSignature/public_key.yml",
+			"deploy_key.yml",
+			"gpg_key_import.yml",
+			"user.yml",
+			"email_address.yml",
+		},
+	})
+}
diff --git a/models/asymkey/ssh_key.go b/models/asymkey/ssh_key.go
new file mode 100644
index 0000000..7a18732
--- /dev/null
+++ b/models/asymkey/ssh_key.go
@@ -0,0 +1,427 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"golang.org/x/crypto/ssh"
+	"xorm.io/builder"
+)
+
+// KeyType specifies the key type
+type KeyType int
+
+const (
+	// KeyTypeUser specifies the user key
+	KeyTypeUser = iota + 1
+	// KeyTypeDeploy specifies the deploy key
+	KeyTypeDeploy
+	// KeyTypePrincipal specifies the authorized principal key
+	KeyTypePrincipal
+)
+
+// PublicKey represents a user or deploy SSH public key.
+type PublicKey struct {
+	ID            int64           `xorm:"pk autoincr"`
+	OwnerID       int64           `xorm:"INDEX NOT NULL"`
+	Name          string          `xorm:"NOT NULL"`
+	Fingerprint   string          `xorm:"INDEX NOT NULL"`
+	Content       string          `xorm:"MEDIUMTEXT NOT NULL"`
+	Mode          perm.AccessMode `xorm:"NOT NULL DEFAULT 2"`
+	Type          KeyType         `xorm:"NOT NULL DEFAULT 1"`
+	LoginSourceID int64           `xorm:"NOT NULL DEFAULT 0"`
+
+	CreatedUnix       timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix       timeutil.TimeStamp `xorm:"updated"`
+	HasRecentActivity bool               `xorm:"-"`
+	HasUsed           bool               `xorm:"-"`
+	Verified          bool               `xorm:"NOT NULL DEFAULT false"`
+}
+
+func init() {
+	db.RegisterModel(new(PublicKey))
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (key *PublicKey) AfterLoad() {
+	key.HasUsed = key.UpdatedUnix > key.CreatedUnix
+	key.HasRecentActivity = key.UpdatedUnix.AddDuration(7*24*time.Hour) > timeutil.TimeStampNow()
+}
+
+// OmitEmail returns content of public key without email address.
+func (key *PublicKey) OmitEmail() string {
+	return strings.Join(strings.Split(key.Content, " ")[:2], " ")
+}
+
+// AuthorizedString returns formatted public key string for authorized_keys file.
+//
+// TODO: Consider dropping this function
+func (key *PublicKey) AuthorizedString() string {
+	return AuthorizedStringForKey(key)
+}
+
+func addKey(ctx context.Context, key *PublicKey) (err error) {
+	if len(key.Fingerprint) == 0 {
+		key.Fingerprint, err = CalcFingerprint(key.Content)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Save SSH key.
+	if err = db.Insert(ctx, key); err != nil {
+		return err
+	}
+
+	return appendAuthorizedKeysToFile(key)
+}
+
+// AddPublicKey adds new public key to database and authorized_keys file.
+func AddPublicKey(ctx context.Context, ownerID int64, name, content string, authSourceID int64) (*PublicKey, error) {
+	log.Trace(content)
+
+	fingerprint, err := CalcFingerprint(content)
+	if err != nil {
+		return nil, err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	if err := checkKeyFingerprint(ctx, fingerprint); err != nil {
+		return nil, err
+	}
+
+	// Key name of same user cannot be duplicated.
+	has, err := db.GetEngine(ctx).
+		Where("owner_id = ? AND name = ?", ownerID, name).
+		Get(new(PublicKey))
+	if err != nil {
+		return nil, err
+	} else if has {
+		return nil, ErrKeyNameAlreadyUsed{ownerID, name}
+	}
+
+	key := &PublicKey{
+		OwnerID:       ownerID,
+		Name:          name,
+		Fingerprint:   fingerprint,
+		Content:       content,
+		Mode:          perm.AccessModeWrite,
+		Type:          KeyTypeUser,
+		LoginSourceID: authSourceID,
+	}
+	if err = addKey(ctx, key); err != nil {
+		return nil, fmt.Errorf("addKey: %w", err)
+	}
+
+	return key, committer.Commit()
+}
+
+// GetPublicKeyByID returns public key by given ID.
+func GetPublicKeyByID(ctx context.Context, keyID int64) (*PublicKey, error) {
+	key := new(PublicKey)
+	has, err := db.GetEngine(ctx).
+		ID(keyID).
+		Get(key)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrKeyNotExist{keyID}
+	}
+	return key, nil
+}
+
+// SearchPublicKeyByContent searches content as prefix (leak e-mail part)
+// and returns public key found.
+func SearchPublicKeyByContent(ctx context.Context, content string) (*PublicKey, error) {
+	key := new(PublicKey)
+	has, err := db.GetEngine(ctx).
+		Where("content like ?", content+"%").
+		Get(key)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrKeyNotExist{}
+	}
+	return key, nil
+}
+
+// SearchPublicKeyByContentExact searches content
+// and returns public key found.
+func SearchPublicKeyByContentExact(ctx context.Context, content string) (*PublicKey, error) {
+	key := new(PublicKey)
+	has, err := db.GetEngine(ctx).
+		Where("content = ?", content).
+		Get(key)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrKeyNotExist{}
+	}
+	return key, nil
+}
+
+type FindPublicKeyOptions struct {
+	db.ListOptions
+	OwnerID       int64
+	Fingerprint   string
+	KeyTypes      []KeyType
+	NotKeytype    KeyType
+	LoginSourceID int64
+}
+
+func (opts FindPublicKeyOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+	if opts.Fingerprint != "" {
+		cond = cond.And(builder.Eq{"fingerprint": opts.Fingerprint})
+	}
+	if len(opts.KeyTypes) > 0 {
+		cond = cond.And(builder.In("`type`", opts.KeyTypes))
+	}
+	if opts.NotKeytype > 0 {
+		cond = cond.And(builder.Neq{"`type`": opts.NotKeytype})
+	}
+	if opts.LoginSourceID > 0 {
+		cond = cond.And(builder.Eq{"login_source_id": opts.LoginSourceID})
+	}
+	return cond
+}
+
+// UpdatePublicKeyUpdated updates public key use time.
+func UpdatePublicKeyUpdated(ctx context.Context, id int64) error {
+	// Check if key exists before update as affected rows count is unreliable
+	//    and will return 0 affected rows if two updates are made at the same time
+	if cnt, err := db.GetEngine(ctx).ID(id).Count(&PublicKey{}); err != nil {
+		return err
+	} else if cnt != 1 {
+		return ErrKeyNotExist{id}
+	}
+
+	_, err := db.GetEngine(ctx).ID(id).Cols("updated_unix").Update(&PublicKey{
+		UpdatedUnix: timeutil.TimeStampNow(),
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// PublicKeysAreExternallyManaged returns whether the provided KeyID represents an externally managed Key
+func PublicKeysAreExternallyManaged(ctx context.Context, keys []*PublicKey) ([]bool, error) {
+	sourceCache := make(map[int64]*auth.Source, len(keys))
+	externals := make([]bool, len(keys))
+
+	for i, key := range keys {
+		if key.LoginSourceID == 0 {
+			externals[i] = false
+			continue
+		}
+
+		source, ok := sourceCache[key.LoginSourceID]
+		if !ok {
+			var err error
+			source, err = auth.GetSourceByID(ctx, key.LoginSourceID)
+			if err != nil {
+				if auth.IsErrSourceNotExist(err) {
+					externals[i] = false
+					sourceCache[key.LoginSourceID] = &auth.Source{
+						ID: key.LoginSourceID,
+					}
+					continue
+				}
+				return nil, err
+			}
+		}
+
+		if sshKeyProvider, ok := source.Cfg.(auth.SSHKeyProvider); ok && sshKeyProvider.ProvidesSSHKeys() {
+			// Disable setting SSH keys for this user
+			externals[i] = true
+		}
+	}
+
+	return externals, nil
+}
+
+// PublicKeyIsExternallyManaged returns whether the provided KeyID represents an externally managed Key
+func PublicKeyIsExternallyManaged(ctx context.Context, id int64) (bool, error) {
+	key, err := GetPublicKeyByID(ctx, id)
+	if err != nil {
+		return false, err
+	}
+	if key.LoginSourceID == 0 {
+		return false, nil
+	}
+	source, err := auth.GetSourceByID(ctx, key.LoginSourceID)
+	if err != nil {
+		if auth.IsErrSourceNotExist(err) {
+			return false, nil
+		}
+		return false, err
+	}
+	if sshKeyProvider, ok := source.Cfg.(auth.SSHKeyProvider); ok && sshKeyProvider.ProvidesSSHKeys() {
+		// Disable setting SSH keys for this user
+		return true, nil
+	}
+	return false, nil
+}
+
+// deleteKeysMarkedForDeletion returns true if ssh keys needs update
+func deleteKeysMarkedForDeletion(ctx context.Context, keys []string) (bool, error) {
+	// Start session
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return false, err
+	}
+	defer committer.Close()
+
+	// Delete keys marked for deletion
+	var sshKeysNeedUpdate bool
+	for _, KeyToDelete := range keys {
+		key, err := SearchPublicKeyByContent(ctx, KeyToDelete)
+		if err != nil {
+			log.Error("SearchPublicKeyByContent: %v", err)
+			continue
+		}
+		if _, err = db.DeleteByID[PublicKey](ctx, key.ID); err != nil {
+			log.Error("DeleteByID[PublicKey]: %v", err)
+			continue
+		}
+		sshKeysNeedUpdate = true
+	}
+
+	if err := committer.Commit(); err != nil {
+		return false, err
+	}
+
+	return sshKeysNeedUpdate, nil
+}
+
+// AddPublicKeysBySource add a users public keys. Returns true if there are changes.
+func AddPublicKeysBySource(ctx context.Context, usr *user_model.User, s *auth.Source, sshPublicKeys []string) bool {
+	var sshKeysNeedUpdate bool
+	for _, sshKey := range sshPublicKeys {
+		var err error
+		found := false
+		keys := []byte(sshKey)
+	loop:
+		for len(keys) > 0 && err == nil {
+			var out ssh.PublicKey
+			// We ignore options as they are not relevant to Gitea
+			out, _, _, keys, err = ssh.ParseAuthorizedKey(keys)
+			if err != nil {
+				break loop
+			}
+			found = true
+			marshalled := string(ssh.MarshalAuthorizedKey(out))
+			marshalled = marshalled[:len(marshalled)-1]
+			sshKeyName := fmt.Sprintf("%s-%s", s.Name, ssh.FingerprintSHA256(out))
+
+			if _, err := AddPublicKey(ctx, usr.ID, sshKeyName, marshalled, s.ID); err != nil {
+				if IsErrKeyAlreadyExist(err) {
+					log.Trace("AddPublicKeysBySource[%s]: Public SSH Key %s already exists for user", sshKeyName, usr.Name)
+				} else {
+					log.Error("AddPublicKeysBySource[%s]: Error adding Public SSH Key for user %s: %v", sshKeyName, usr.Name, err)
+				}
+			} else {
+				log.Trace("AddPublicKeysBySource[%s]: Added Public SSH Key for user %s", sshKeyName, usr.Name)
+				sshKeysNeedUpdate = true
+			}
+		}
+		if !found && err != nil {
+			log.Warn("AddPublicKeysBySource[%s]: Skipping invalid Public SSH Key for user %s: %v", s.Name, usr.Name, sshKey)
+		}
+	}
+	return sshKeysNeedUpdate
+}
+
+// SynchronizePublicKeys updates a users public keys. Returns true if there are changes.
+func SynchronizePublicKeys(ctx context.Context, usr *user_model.User, s *auth.Source, sshPublicKeys []string) bool {
+	var sshKeysNeedUpdate bool
+
+	log.Trace("synchronizePublicKeys[%s]: Handling Public SSH Key synchronization for user %s", s.Name, usr.Name)
+
+	// Get Public Keys from DB with current LDAP source
+	var giteaKeys []string
+	keys, err := db.Find[PublicKey](ctx, FindPublicKeyOptions{
+		OwnerID:       usr.ID,
+		LoginSourceID: s.ID,
+	})
+	if err != nil {
+		log.Error("synchronizePublicKeys[%s]: Error listing Public SSH Keys for user %s: %v", s.Name, usr.Name, err)
+	}
+
+	for _, v := range keys {
+		giteaKeys = append(giteaKeys, v.OmitEmail())
+	}
+
+	// Process the provided keys to remove duplicates and name part
+	var providedKeys []string
+	for _, v := range sshPublicKeys {
+		sshKeySplit := strings.Split(v, " ")
+		if len(sshKeySplit) > 1 {
+			key := strings.Join(sshKeySplit[:2], " ")
+			if !util.SliceContainsString(providedKeys, key) {
+				providedKeys = append(providedKeys, key)
+			}
+		}
+	}
+
+	// Check if Public Key sync is needed
+	if util.SliceSortedEqual(giteaKeys, providedKeys) {
+		log.Trace("synchronizePublicKeys[%s]: Public Keys are already in sync for %s (Source:%v/DB:%v)", s.Name, usr.Name, len(providedKeys), len(giteaKeys))
+		return false
+	}
+	log.Trace("synchronizePublicKeys[%s]: Public Key needs update for user %s (Source:%v/DB:%v)", s.Name, usr.Name, len(providedKeys), len(giteaKeys))
+
+	// Add new Public SSH Keys that doesn't already exist in DB
+	var newKeys []string
+	for _, key := range providedKeys {
+		if !util.SliceContainsString(giteaKeys, key) {
+			newKeys = append(newKeys, key)
+		}
+	}
+	if AddPublicKeysBySource(ctx, usr, s, newKeys) {
+		sshKeysNeedUpdate = true
+	}
+
+	// Mark keys from DB that no longer exist in the source for deletion
+	var giteaKeysToDelete []string
+	for _, giteaKey := range giteaKeys {
+		if !util.SliceContainsString(providedKeys, giteaKey) {
+			log.Trace("synchronizePublicKeys[%s]: Marking Public SSH Key for deletion for user %s: %v", s.Name, usr.Name, giteaKey)
+			giteaKeysToDelete = append(giteaKeysToDelete, giteaKey)
+		}
+	}
+
+	// Delete keys from DB that no longer exist in the source
+	needUpd, err := deleteKeysMarkedForDeletion(ctx, giteaKeysToDelete)
+	if err != nil {
+		log.Error("synchronizePublicKeys[%s]: Error deleting Public Keys marked for deletion for user %s: %v", s.Name, usr.Name, err)
+	}
+	if needUpd {
+		sshKeysNeedUpdate = true
+	}
+
+	return sshKeysNeedUpdate
+}
diff --git a/models/asymkey/ssh_key_authorized_keys.go b/models/asymkey/ssh_key_authorized_keys.go
new file mode 100644
index 0000000..d3f9f3f
--- /dev/null
+++ b/models/asymkey/ssh_key_authorized_keys.go
@@ -0,0 +1,220 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+//  _____          __  .__                 .__                  .___
+// /  _  \  __ ___/  |_|  |__   ___________|__|_______ ____   __| _/
+// /  /_\  \|  |  \   __\  |  \ /  _ \_  __ \  \___   // __ \ / __ |
+// /    |    \  |  /|  | |   Y  (  <_> )  | \/  |/    /\  ___// /_/ |
+// \____|__  /____/ |__| |___|  /\____/|__|  |__/_____ \\___  >____ |
+//         \/                 \/                      \/    \/     \/
+// ____  __.
+// |    |/ _|____ ___.__. ______
+// |      <_/ __ <   |  |/  ___/
+// |    |  \  ___/\___  |\___ \
+// |____|__ \___  > ____/____  >
+//         \/   \/\/         \/
+//
+// This file contains functions for creating authorized_keys files
+//
+// There is a dependence on the database within RegeneratePublicKeys however most of these functions probably belong in a module
+
+const (
+	tplCommentPrefix = `# gitea public key`
+	tplPublicKey     = tplCommentPrefix + "\n" + `command=%s,no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,no-user-rc,restrict %s` + "\n"
+)
+
+var sshOpLocker sync.Mutex
+
+// AuthorizedStringForKey creates the authorized keys string appropriate for the provided key
+func AuthorizedStringForKey(key *PublicKey) string {
+	sb := &strings.Builder{}
+	_ = setting.SSH.AuthorizedKeysCommandTemplateTemplate.Execute(sb, map[string]any{
+		"AppPath":     util.ShellEscape(setting.AppPath),
+		"AppWorkPath": util.ShellEscape(setting.AppWorkPath),
+		"CustomConf":  util.ShellEscape(setting.CustomConf),
+		"CustomPath":  util.ShellEscape(setting.CustomPath),
+		"Key":         key,
+	})
+
+	return fmt.Sprintf(tplPublicKey, util.ShellEscape(sb.String()), key.Content)
+}
+
+// appendAuthorizedKeysToFile appends new SSH keys' content to authorized_keys file.
+func appendAuthorizedKeysToFile(keys ...*PublicKey) error {
+	// Don't need to rewrite this file if builtin SSH server is enabled.
+	if setting.SSH.StartBuiltinServer || !setting.SSH.CreateAuthorizedKeysFile {
+		return nil
+	}
+
+	sshOpLocker.Lock()
+	defer sshOpLocker.Unlock()
+
+	if setting.SSH.RootPath != "" {
+		// First of ensure that the RootPath is present, and if not make it with 0700 permissions
+		// This of course doesn't guarantee that this is the right directory for authorized_keys
+		// but at least if it's supposed to be this directory and it doesn't exist and we're the
+		// right user it will at least be created properly.
+		err := os.MkdirAll(setting.SSH.RootPath, 0o700)
+		if err != nil {
+			log.Error("Unable to MkdirAll(%s): %v", setting.SSH.RootPath, err)
+			return err
+		}
+	}
+
+	fPath := filepath.Join(setting.SSH.RootPath, "authorized_keys")
+	f, err := os.OpenFile(fPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0o600)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	// Note: chmod command does not support in Windows.
+	if !setting.IsWindows {
+		fi, err := f.Stat()
+		if err != nil {
+			return err
+		}
+
+		// .ssh directory should have mode 700, and authorized_keys file should have mode 600.
+		if fi.Mode().Perm() > 0o600 {
+			log.Error("authorized_keys file has unusual permission flags: %s - setting to -rw-------", fi.Mode().Perm().String())
+			if err = f.Chmod(0o600); err != nil {
+				return err
+			}
+		}
+	}
+
+	for _, key := range keys {
+		if key.Type == KeyTypePrincipal {
+			continue
+		}
+		if _, err = f.WriteString(key.AuthorizedString()); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// RewriteAllPublicKeys removes any authorized key and rewrite all keys from database again.
+// Note: db.GetEngine(ctx).Iterate does not get latest data after insert/delete, so we have to call this function
+// outside any session scope independently.
+func RewriteAllPublicKeys(ctx context.Context) error {
+	// Don't rewrite key if internal server
+	if setting.SSH.StartBuiltinServer || !setting.SSH.CreateAuthorizedKeysFile {
+		return nil
+	}
+
+	sshOpLocker.Lock()
+	defer sshOpLocker.Unlock()
+
+	if setting.SSH.RootPath != "" {
+		// First of ensure that the RootPath is present, and if not make it with 0700 permissions
+		// This of course doesn't guarantee that this is the right directory for authorized_keys
+		// but at least if it's supposed to be this directory and it doesn't exist and we're the
+		// right user it will at least be created properly.
+		err := os.MkdirAll(setting.SSH.RootPath, 0o700)
+		if err != nil {
+			log.Error("Unable to MkdirAll(%s): %v", setting.SSH.RootPath, err)
+			return err
+		}
+	}
+
+	fPath := filepath.Join(setting.SSH.RootPath, "authorized_keys")
+	tmpPath := fPath + ".tmp"
+	t, err := os.OpenFile(tmpPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o600)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		t.Close()
+		if err := util.Remove(tmpPath); err != nil {
+			log.Warn("Unable to remove temporary authorized keys file: %s: Error: %v", tmpPath, err)
+		}
+	}()
+
+	if setting.SSH.AuthorizedKeysBackup {
+		isExist, err := util.IsExist(fPath)
+		if err != nil {
+			log.Error("Unable to check if %s exists. Error: %v", fPath, err)
+			return err
+		}
+		if isExist {
+			bakPath := fmt.Sprintf("%s_%d.gitea_bak", fPath, time.Now().Unix())
+			if err = util.CopyFile(fPath, bakPath); err != nil {
+				return err
+			}
+		}
+	}
+
+	if err := RegeneratePublicKeys(ctx, t); err != nil {
+		return err
+	}
+
+	if err := t.Sync(); err != nil {
+		return err
+	}
+	if err := t.Close(); err != nil {
+		return err
+	}
+	return util.Rename(tmpPath, fPath)
+}
+
+// RegeneratePublicKeys regenerates the authorized_keys file
+func RegeneratePublicKeys(ctx context.Context, t io.StringWriter) error {
+	if err := db.GetEngine(ctx).Where("type != ?", KeyTypePrincipal).Iterate(new(PublicKey), func(idx int, bean any) (err error) {
+		_, err = t.WriteString((bean.(*PublicKey)).AuthorizedString())
+		return err
+	}); err != nil {
+		return err
+	}
+
+	fPath := filepath.Join(setting.SSH.RootPath, "authorized_keys")
+	isExist, err := util.IsExist(fPath)
+	if err != nil {
+		log.Error("Unable to check if %s exists. Error: %v", fPath, err)
+		return err
+	}
+	if isExist {
+		f, err := os.Open(fPath)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		scanner := bufio.NewScanner(f)
+		for scanner.Scan() {
+			line := scanner.Text()
+			if strings.HasPrefix(line, tplCommentPrefix) {
+				scanner.Scan()
+				continue
+			}
+			_, err = t.WriteString(line + "\n")
+			if err != nil {
+				return err
+			}
+		}
+		if err = scanner.Err(); err != nil {
+			return fmt.Errorf("RegeneratePublicKeys scan: %w", err)
+		}
+	}
+	return nil
+}
diff --git a/models/asymkey/ssh_key_authorized_principals.go b/models/asymkey/ssh_key_authorized_principals.go
new file mode 100644
index 0000000..f85de12
--- /dev/null
+++ b/models/asymkey/ssh_key_authorized_principals.go
@@ -0,0 +1,142 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+//  _____          __  .__                 .__                  .___
+// /  _  \  __ ___/  |_|  |__   ___________|__|_______ ____   __| _/
+// /  /_\  \|  |  \   __\  |  \ /  _ \_  __ \  \___   // __ \ / __ |
+// /    |    \  |  /|  | |   Y  (  <_> )  | \/  |/    /\  ___// /_/ |
+// \____|__  /____/ |__| |___|  /\____/|__|  |__/_____ \\___  >____ |
+//         \/                 \/                      \/    \/     \/
+// __________       .__              .__             .__
+// \______   _______|__| ____   ____ |_____________  |  |   ______
+//  |     ___\_  __ |  |/    \_/ ___\|  \____ \__  \ |  |  /  ___/
+//  |    |    |  | \|  |   |  \  \___|  |  |_> / __ \|  |__\___ \
+//  |____|    |__|  |__|___|  /\___  |__|   __(____  |____/____  >
+//                          \/     \/   |__|       \/          \/
+//
+// This file contains functions for creating authorized_principals files
+//
+// There is a dependence on the database within RewriteAllPrincipalKeys & RegeneratePrincipalKeys
+// The sshOpLocker is used from ssh_key_authorized_keys.go
+
+const authorizedPrincipalsFile = "authorized_principals"
+
+// RewriteAllPrincipalKeys removes any authorized principal and rewrite all keys from database again.
+// Note: db.GetEngine(ctx).Iterate does not get latest data after insert/delete, so we have to call this function
+// outside any session scope independently.
+func RewriteAllPrincipalKeys(ctx context.Context) error {
+	// Don't rewrite key if internal server
+	if setting.SSH.StartBuiltinServer || !setting.SSH.CreateAuthorizedPrincipalsFile {
+		return nil
+	}
+
+	sshOpLocker.Lock()
+	defer sshOpLocker.Unlock()
+
+	if setting.SSH.RootPath != "" {
+		// First of ensure that the RootPath is present, and if not make it with 0700 permissions
+		// This of course doesn't guarantee that this is the right directory for authorized_keys
+		// but at least if it's supposed to be this directory and it doesn't exist and we're the
+		// right user it will at least be created properly.
+		err := os.MkdirAll(setting.SSH.RootPath, 0o700)
+		if err != nil {
+			log.Error("Unable to MkdirAll(%s): %v", setting.SSH.RootPath, err)
+			return err
+		}
+	}
+
+	fPath := filepath.Join(setting.SSH.RootPath, authorizedPrincipalsFile)
+	tmpPath := fPath + ".tmp"
+	t, err := os.OpenFile(tmpPath, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0o600)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		t.Close()
+		os.Remove(tmpPath)
+	}()
+
+	if setting.SSH.AuthorizedPrincipalsBackup {
+		isExist, err := util.IsExist(fPath)
+		if err != nil {
+			log.Error("Unable to check if %s exists. Error: %v", fPath, err)
+			return err
+		}
+		if isExist {
+			bakPath := fmt.Sprintf("%s_%d.gitea_bak", fPath, time.Now().Unix())
+			if err = util.CopyFile(fPath, bakPath); err != nil {
+				return err
+			}
+		}
+	}
+
+	if err := regeneratePrincipalKeys(ctx, t); err != nil {
+		return err
+	}
+
+	if err := t.Sync(); err != nil {
+		return err
+	}
+	if err := t.Close(); err != nil {
+		return err
+	}
+	return util.Rename(tmpPath, fPath)
+}
+
+func regeneratePrincipalKeys(ctx context.Context, t io.StringWriter) error {
+	if err := db.GetEngine(ctx).Where("type = ?", KeyTypePrincipal).Iterate(new(PublicKey), func(idx int, bean any) (err error) {
+		_, err = t.WriteString((bean.(*PublicKey)).AuthorizedString())
+		return err
+	}); err != nil {
+		return err
+	}
+
+	fPath := filepath.Join(setting.SSH.RootPath, authorizedPrincipalsFile)
+	isExist, err := util.IsExist(fPath)
+	if err != nil {
+		log.Error("Unable to check if %s exists. Error: %v", fPath, err)
+		return err
+	}
+	if isExist {
+		f, err := os.Open(fPath)
+		if err != nil {
+			return err
+		}
+		defer f.Close()
+
+		scanner := bufio.NewScanner(f)
+		for scanner.Scan() {
+			line := scanner.Text()
+			if strings.HasPrefix(line, tplCommentPrefix) {
+				scanner.Scan()
+				continue
+			}
+			_, err = t.WriteString(line + "\n")
+			if err != nil {
+				return err
+			}
+		}
+		if err = scanner.Err(); err != nil {
+			return fmt.Errorf("regeneratePrincipalKeys scan: %w", err)
+		}
+	}
+	return nil
+}
diff --git a/models/asymkey/ssh_key_deploy.go b/models/asymkey/ssh_key_deploy.go
new file mode 100644
index 0000000..923c502
--- /dev/null
+++ b/models/asymkey/ssh_key_deploy.go
@@ -0,0 +1,218 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+// ________                .__                 ____  __.
+// \______ \   ____ ______ |  |   ____ ___.__.|    |/ _|____ ___.__.
+//  |    |  \_/ __ \\____ \|  |  /  _ <   |  ||      <_/ __ <   |  |
+//  |    `   \  ___/|  |_> >  |_(  <_> )___  ||    |  \  ___/\___  |
+// /_______  /\___  >   __/|____/\____// ____||____|__ \___  > ____|
+//         \/     \/|__|               \/             \/   \/\/
+//
+// This file contains functions specific to DeployKeys
+
+// DeployKey represents deploy key information and its relation with repository.
+type DeployKey struct {
+	ID          int64 `xorm:"pk autoincr"`
+	KeyID       int64 `xorm:"UNIQUE(s) INDEX"`
+	RepoID      int64 `xorm:"UNIQUE(s) INDEX"`
+	Name        string
+	Fingerprint string
+	Content     string `xorm:"-"`
+
+	Mode perm.AccessMode `xorm:"NOT NULL DEFAULT 1"`
+
+	CreatedUnix       timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix       timeutil.TimeStamp `xorm:"updated"`
+	HasRecentActivity bool               `xorm:"-"`
+	HasUsed           bool               `xorm:"-"`
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (key *DeployKey) AfterLoad() {
+	key.HasUsed = key.UpdatedUnix > key.CreatedUnix
+	key.HasRecentActivity = key.UpdatedUnix.AddDuration(7*24*time.Hour) > timeutil.TimeStampNow()
+}
+
+// GetContent gets associated public key content.
+func (key *DeployKey) GetContent(ctx context.Context) error {
+	pkey, err := GetPublicKeyByID(ctx, key.KeyID)
+	if err != nil {
+		return err
+	}
+	key.Content = pkey.Content
+	return nil
+}
+
+// IsReadOnly checks if the key can only be used for read operations, used by template
+func (key *DeployKey) IsReadOnly() bool {
+	return key.Mode == perm.AccessModeRead
+}
+
+func init() {
+	db.RegisterModel(new(DeployKey))
+}
+
+func checkDeployKey(ctx context.Context, keyID, repoID int64, name string) error {
+	// Note: We want error detail, not just true or false here.
+	has, err := db.GetEngine(ctx).
+		Where("key_id = ? AND repo_id = ?", keyID, repoID).
+		Get(new(DeployKey))
+	if err != nil {
+		return err
+	} else if has {
+		return ErrDeployKeyAlreadyExist{keyID, repoID}
+	}
+
+	has, err = db.GetEngine(ctx).
+		Where("repo_id = ? AND name = ?", repoID, name).
+		Get(new(DeployKey))
+	if err != nil {
+		return err
+	} else if has {
+		return ErrDeployKeyNameAlreadyUsed{repoID, name}
+	}
+
+	return nil
+}
+
+// addDeployKey adds new key-repo relation.
+func addDeployKey(ctx context.Context, keyID, repoID int64, name, fingerprint string, mode perm.AccessMode) (*DeployKey, error) {
+	if err := checkDeployKey(ctx, keyID, repoID, name); err != nil {
+		return nil, err
+	}
+
+	key := &DeployKey{
+		KeyID:       keyID,
+		RepoID:      repoID,
+		Name:        name,
+		Fingerprint: fingerprint,
+		Mode:        mode,
+	}
+	return key, db.Insert(ctx, key)
+}
+
+// HasDeployKey returns true if public key is a deploy key of given repository.
+func HasDeployKey(ctx context.Context, keyID, repoID int64) bool {
+	has, _ := db.GetEngine(ctx).
+		Where("key_id = ? AND repo_id = ?", keyID, repoID).
+		Get(new(DeployKey))
+	return has
+}
+
+// AddDeployKey add new deploy key to database and authorized_keys file.
+func AddDeployKey(ctx context.Context, repoID int64, name, content string, readOnly bool) (*DeployKey, error) {
+	fingerprint, err := CalcFingerprint(content)
+	if err != nil {
+		return nil, err
+	}
+
+	accessMode := perm.AccessModeRead
+	if !readOnly {
+		accessMode = perm.AccessModeWrite
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	pkey, exist, err := db.Get[PublicKey](ctx, builder.Eq{"fingerprint": fingerprint})
+	if err != nil {
+		return nil, err
+	} else if exist {
+		if pkey.Type != KeyTypeDeploy {
+			return nil, ErrKeyAlreadyExist{0, fingerprint, ""}
+		}
+	} else {
+		// First time use this deploy key.
+		pkey = &PublicKey{
+			Fingerprint: fingerprint,
+			Mode:        accessMode,
+			Type:        KeyTypeDeploy,
+			Content:     content,
+			Name:        name,
+		}
+		if err = addKey(ctx, pkey); err != nil {
+			return nil, fmt.Errorf("addKey: %w", err)
+		}
+	}
+
+	key, err := addDeployKey(ctx, pkey.ID, repoID, name, pkey.Fingerprint, accessMode)
+	if err != nil {
+		return nil, err
+	}
+
+	return key, committer.Commit()
+}
+
+// GetDeployKeyByID returns deploy key by given ID.
+func GetDeployKeyByID(ctx context.Context, id int64) (*DeployKey, error) {
+	key, exist, err := db.GetByID[DeployKey](ctx, id)
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrDeployKeyNotExist{id, 0, 0}
+	}
+	return key, nil
+}
+
+// GetDeployKeyByRepo returns deploy key by given public key ID and repository ID.
+func GetDeployKeyByRepo(ctx context.Context, keyID, repoID int64) (*DeployKey, error) {
+	key, exist, err := db.Get[DeployKey](ctx, builder.Eq{"key_id": keyID, "repo_id": repoID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrDeployKeyNotExist{0, keyID, repoID}
+	}
+	return key, nil
+}
+
+// IsDeployKeyExistByKeyID return true if there is at least one deploykey with the key id
+func IsDeployKeyExistByKeyID(ctx context.Context, keyID int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("key_id = ?", keyID).
+		Get(new(DeployKey))
+}
+
+// UpdateDeployKeyCols updates deploy key information in the specified columns.
+func UpdateDeployKeyCols(ctx context.Context, key *DeployKey, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(key.ID).Cols(cols...).Update(key)
+	return err
+}
+
+// ListDeployKeysOptions are options for ListDeployKeys
+type ListDeployKeysOptions struct {
+	db.ListOptions
+	RepoID      int64
+	KeyID       int64
+	Fingerprint string
+}
+
+func (opt ListDeployKeysOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opt.RepoID != 0 {
+		cond = cond.And(builder.Eq{"repo_id": opt.RepoID})
+	}
+	if opt.KeyID != 0 {
+		cond = cond.And(builder.Eq{"key_id": opt.KeyID})
+	}
+	if opt.Fingerprint != "" {
+		cond = cond.And(builder.Eq{"fingerprint": opt.Fingerprint})
+	}
+	return cond
+}
diff --git a/models/asymkey/ssh_key_fingerprint.go b/models/asymkey/ssh_key_fingerprint.go
new file mode 100644
index 0000000..1ed3b5d
--- /dev/null
+++ b/models/asymkey/ssh_key_fingerprint.go
@@ -0,0 +1,89 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"golang.org/x/crypto/ssh"
+	"xorm.io/builder"
+)
+
+// ___________.__                                         .__        __
+// \_   _____/|__| ____    ____   ________________________|__| _____/  |_
+//  |    __)  |  |/    \  / ___\_/ __ \_  __ \____ \_  __ \  |/    \   __\
+//  |     \   |  |   |  \/ /_/  >  ___/|  | \/  |_> >  | \/  |   |  \  |
+//  \___  /   |__|___|  /\___  / \___  >__|  |   __/|__|  |__|___|  /__|
+//      \/            \//_____/      \/      |__|                 \/
+//
+// This file contains functions for fingerprinting SSH keys
+//
+// The database is used in checkKeyFingerprint however most of these functions probably belong in a module
+
+// checkKeyFingerprint only checks if key fingerprint has been used as public key,
+// it is OK to use same key as deploy key for multiple repositories/users.
+func checkKeyFingerprint(ctx context.Context, fingerprint string) error {
+	has, err := db.Exist[PublicKey](ctx, builder.Eq{"fingerprint": fingerprint})
+	if err != nil {
+		return err
+	} else if has {
+		return ErrKeyAlreadyExist{0, fingerprint, ""}
+	}
+	return nil
+}
+
+func calcFingerprintSSHKeygen(publicKeyContent string) (string, error) {
+	// Calculate fingerprint.
+	tmpPath, err := writeTmpKeyFile(publicKeyContent)
+	if err != nil {
+		return "", err
+	}
+	defer func() {
+		if err := util.Remove(tmpPath); err != nil {
+			log.Warn("Unable to remove temporary key file: %s: Error: %v", tmpPath, err)
+		}
+	}()
+	stdout, stderr, err := process.GetManager().Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
+	if err != nil {
+		if strings.Contains(stderr, "is not a public key file") {
+			return "", ErrKeyUnableVerify{stderr}
+		}
+		return "", util.NewInvalidArgumentErrorf("'ssh-keygen -lf %s' failed with error '%s': %s", tmpPath, err, stderr)
+	} else if len(stdout) < 2 {
+		return "", util.NewInvalidArgumentErrorf("not enough output for calculating fingerprint: %s", stdout)
+	}
+	return strings.Split(stdout, " ")[1], nil
+}
+
+func calcFingerprintNative(publicKeyContent string) (string, error) {
+	// Calculate fingerprint.
+	pk, _, _, _, err := ssh.ParseAuthorizedKey([]byte(publicKeyContent))
+	if err != nil {
+		return "", err
+	}
+	return ssh.FingerprintSHA256(pk), nil
+}
+
+// CalcFingerprint calculate public key's fingerprint
+func CalcFingerprint(publicKeyContent string) (string, error) {
+	// Call the method based on configuration
+	useNative := setting.SSH.KeygenPath == ""
+	calcFn := util.Iif(useNative, calcFingerprintNative, calcFingerprintSSHKeygen)
+	fp, err := calcFn(publicKeyContent)
+	if err != nil {
+		if IsErrKeyUnableVerify(err) {
+			return "", err
+		}
+		return "", fmt.Errorf("CalcFingerprint(%s): %w", util.Iif(useNative, "native", "ssh-keygen"), err)
+	}
+	return fp, nil
+}
diff --git a/models/asymkey/ssh_key_object_verification.go b/models/asymkey/ssh_key_object_verification.go
new file mode 100644
index 0000000..5ad6fdb
--- /dev/null
+++ b/models/asymkey/ssh_key_object_verification.go
@@ -0,0 +1,85 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/42wim/sshsig"
+)
+
+// ParseObjectWithSSHSignature check if signature is good against keystore.
+func ParseObjectWithSSHSignature(ctx context.Context, c *GitObject, committer *user_model.User) *ObjectVerification {
+	// Now try to associate the signature with the committer, if present
+	if committer.ID != 0 {
+		keys, err := db.Find[PublicKey](ctx, FindPublicKeyOptions{
+			OwnerID:    committer.ID,
+			NotKeytype: KeyTypePrincipal,
+		})
+		if err != nil { // Skipping failed to get ssh keys of user
+			log.Error("ListPublicKeys: %v", err)
+			return &ObjectVerification{
+				CommittingUser: committer,
+				Verified:       false,
+				Reason:         "gpg.error.failed_retrieval_gpg_keys",
+			}
+		}
+
+		committerEmailAddresses, err := user_model.GetEmailAddresses(ctx, committer.ID)
+		if err != nil {
+			log.Error("GetEmailAddresses: %v", err)
+		}
+
+		// Add the noreply email address as verified address.
+		committerEmailAddresses = append(committerEmailAddresses, &user_model.EmailAddress{
+			IsActivated: true,
+			Email:       committer.GetPlaceholderEmail(),
+		})
+
+		activated := false
+		for _, e := range committerEmailAddresses {
+			if e.IsActivated && strings.EqualFold(e.Email, c.Committer.Email) {
+				activated = true
+				break
+			}
+		}
+
+		for _, k := range keys {
+			if k.Verified && activated {
+				commitVerification := verifySSHObjectVerification(c.Signature.Signature, c.Signature.Payload, k, committer, committer, c.Committer.Email)
+				if commitVerification != nil {
+					return commitVerification
+				}
+			}
+		}
+	}
+
+	return &ObjectVerification{
+		CommittingUser: committer,
+		Verified:       false,
+		Reason:         NoKeyFound,
+	}
+}
+
+func verifySSHObjectVerification(sig, payload string, k *PublicKey, committer, signer *user_model.User, email string) *ObjectVerification {
+	if err := sshsig.Verify(bytes.NewBuffer([]byte(payload)), []byte(sig), []byte(k.Content), "git"); err != nil {
+		return nil
+	}
+
+	return &ObjectVerification{ // Everything is ok
+		CommittingUser: committer,
+		Verified:       true,
+		Reason:         fmt.Sprintf("%s / %s", signer.Name, k.Fingerprint),
+		SigningUser:    signer,
+		SigningSSHKey:  k,
+		SigningEmail:   email,
+	}
+}
diff --git a/models/asymkey/ssh_key_object_verification_test.go b/models/asymkey/ssh_key_object_verification_test.go
new file mode 100644
index 0000000..0d5ebab
--- /dev/null
+++ b/models/asymkey/ssh_key_object_verification_test.go
@@ -0,0 +1,153 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseCommitWithSSHSignature(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	sshKey := unittest.AssertExistsAndLoadBean(t, &PublicKey{ID: 1000, OwnerID: 2})
+
+	t.Run("No commiter", func(t *testing.T) {
+		o := commitToGitObject(&git.Commit{})
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, &user_model.User{})
+		assert.False(t, commitVerification.Verified)
+		assert.Equal(t, NoKeyFound, commitVerification.Reason)
+	})
+
+	t.Run("Commiter without keys", func(t *testing.T) {
+		user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+		o := commitToGitObject(&git.Commit{Committer: &git.Signature{Email: user.Email}})
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, user)
+		assert.False(t, commitVerification.Verified)
+		assert.Equal(t, NoKeyFound, commitVerification.Reason)
+	})
+
+	t.Run("Correct signature with wrong email", func(t *testing.T) {
+		gitCommit := &git.Commit{
+			Committer: &git.Signature{
+				Email: "non-existent",
+			},
+			Signature: &git.ObjectSignature{
+				Payload: `tree 2d491b2985a7ff848d5c02748e7ea9f9f7619f9f
+parent 45b03601635a1f463b81963a4022c7f87ce96ef9
+author user2 <non-existent> 1699710556 +0100
+committer user2 <non-existent> 1699710556 +0100
+
+Using email that isn't known to Forgejo
+`,
+				Signature: `-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgoGSe9Zy7Ez9bSJcaTNjh/Y7p95
+f5DujjqkpzFRtw6CEAAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
+AAAAQIMufOuSjZeDUujrkVK4sl7ICa0WwEftas8UAYxx0Thdkiw2qWjR1U1PKfTLm16/w8
+/bS1LX1lZNuzm2LR2qEgw=
+-----END SSH SIGNATURE-----
+`,
+			},
+		}
+		o := commitToGitObject(gitCommit)
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, user2)
+		assert.False(t, commitVerification.Verified)
+		assert.Equal(t, NoKeyFound, commitVerification.Reason)
+	})
+
+	t.Run("Incorrect signature with correct email", func(t *testing.T) {
+		gitCommit := &git.Commit{
+			Committer: &git.Signature{
+				Email: "user2@example.com",
+			},
+			Signature: &git.ObjectSignature{
+				Payload: `tree 853694aae8816094a0d875fee7ea26278dbf5d0f
+parent c2780d5c313da2a947eae22efd7dacf4213f4e7f
+author user2 <user2@example.com> 1699707877 +0100
+committer user2 <user2@example.com> 1699707877 +0100
+
+Add content
+`,
+				Signature: `-----BEGIN SSH SIGNATURE-----`,
+			},
+		}
+
+		o := commitToGitObject(gitCommit)
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, user2)
+		assert.False(t, commitVerification.Verified)
+		assert.Equal(t, NoKeyFound, commitVerification.Reason)
+	})
+
+	t.Run("Valid signature with correct email", func(t *testing.T) {
+		gitCommit := &git.Commit{
+			Committer: &git.Signature{
+				Email: "user2@example.com",
+			},
+			Signature: &git.ObjectSignature{
+				Payload: `tree 853694aae8816094a0d875fee7ea26278dbf5d0f
+parent c2780d5c313da2a947eae22efd7dacf4213f4e7f
+author user2 <user2@example.com> 1699707877 +0100
+committer user2 <user2@example.com> 1699707877 +0100
+
+Add content
+`,
+				Signature: `-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgoGSe9Zy7Ez9bSJcaTNjh/Y7p95
+f5DujjqkpzFRtw6CEAAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
+AAAAQBe2Fwk/FKY3SBCnG6jSYcO6ucyahp2SpQ/0P+otslzIHpWNW8cQ0fGLdhhaFynJXQ
+fs9cMpZVM9BfIKNUSO8QY=
+-----END SSH SIGNATURE-----
+`,
+			},
+		}
+
+		o := commitToGitObject(gitCommit)
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, user2)
+		assert.True(t, commitVerification.Verified)
+		assert.Equal(t, "user2 / SHA256:TKfwbZMR7e9OnlV2l1prfah1TXH8CmqR0PvFEXVCXA4", commitVerification.Reason)
+		assert.Equal(t, sshKey, commitVerification.SigningSSHKey)
+	})
+
+	t.Run("Valid signature with noreply email", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Service.NoReplyAddress, "noreply.example.com")()
+
+		gitCommit := &git.Commit{
+			Committer: &git.Signature{
+				Email: "user2@noreply.example.com",
+			},
+			Signature: &git.ObjectSignature{
+				Payload: `tree 4836c7f639f37388bab4050ef5c97bbbd54272fc
+parent 795be1b0117ea5c65456050bb9fd84744d4fd9c6
+author user2 <user2@noreply.example.com> 1699709594 +0100
+committer user2 <user2@noreply.example.com> 1699709594 +0100
+
+Commit with noreply
+`,
+				Signature: `-----BEGIN SSH SIGNATURE-----
+U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgoGSe9Zy7Ez9bSJcaTNjh/Y7p95
+f5DujjqkpzFRtw6CEAAAADZ2l0AAAAAAAAAAZzaGE1MTIAAABTAAAAC3NzaC1lZDI1NTE5
+AAAAQJz83KKxD6Bz/ZvNpqkA3RPOSQ4LQ5FfEItbtoONkbwV9wAWMnmBqgggo/lnXCJ3oq
+muPLbvEduU+Ze/1Ol1pgk=
+-----END SSH SIGNATURE-----
+`,
+			},
+		}
+
+		o := commitToGitObject(gitCommit)
+		commitVerification := ParseObjectWithSSHSignature(db.DefaultContext, &o, user2)
+		assert.True(t, commitVerification.Verified)
+		assert.Equal(t, "user2 / SHA256:TKfwbZMR7e9OnlV2l1prfah1TXH8CmqR0PvFEXVCXA4", commitVerification.Reason)
+		assert.Equal(t, sshKey, commitVerification.SigningSSHKey)
+	})
+}
diff --git a/models/asymkey/ssh_key_parse.go b/models/asymkey/ssh_key_parse.go
new file mode 100644
index 0000000..94b1cf1
--- /dev/null
+++ b/models/asymkey/ssh_key_parse.go
@@ -0,0 +1,312 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/asn1"
+	"encoding/base64"
+	"encoding/binary"
+	"encoding/pem"
+	"fmt"
+	"math/big"
+	"os"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"golang.org/x/crypto/ssh"
+)
+
+//  ____  __.             __________
+// |    |/ _|____ ___.__. \______   \_____ _______  ______ ___________
+// |      <_/ __ <   |  |  |     ___/\__  \\_  __ \/  ___// __ \_  __ \
+// |    |  \  ___/\___  |  |    |     / __ \|  | \/\___ \\  ___/|  | \/
+// |____|__ \___  > ____|  |____|    (____  /__|  /____  >\___  >__|
+//         \/   \/\/                      \/           \/     \/
+//
+// This file contains functions for parsing ssh-keys
+//
+// TODO: Consider if these functions belong in models - no other models function call them or are called by them
+// They may belong in a service or a module
+
+const ssh2keyStart = "---- BEGIN SSH2 PUBLIC KEY ----"
+
+func extractTypeFromBase64Key(key string) (string, error) {
+	b, err := base64.StdEncoding.DecodeString(key)
+	if err != nil || len(b) < 4 {
+		return "", fmt.Errorf("invalid key format: %w", err)
+	}
+
+	keyLength := int(binary.BigEndian.Uint32(b))
+	if len(b) < 4+keyLength {
+		return "", fmt.Errorf("invalid key format: not enough length %d", keyLength)
+	}
+
+	return string(b[4 : 4+keyLength]), nil
+}
+
+// parseKeyString parses any key string in OpenSSH or SSH2 format to clean OpenSSH string (RFC4253).
+func parseKeyString(content string) (string, error) {
+	// remove whitespace at start and end
+	content = strings.TrimSpace(content)
+
+	var keyType, keyContent, keyComment string
+
+	if strings.HasPrefix(content, ssh2keyStart) {
+		// Parse SSH2 file format.
+
+		// Transform all legal line endings to a single "\n".
+		content = strings.NewReplacer("\r\n", "\n", "\r", "\n").Replace(content)
+
+		lines := strings.Split(content, "\n")
+		continuationLine := false
+
+		for _, line := range lines {
+			// Skip lines that:
+			// 1) are a continuation of the previous line,
+			// 2) contain ":" as that are comment lines
+			// 3) contain "-" as that are begin and end tags
+			if continuationLine || strings.ContainsAny(line, ":-") {
+				continuationLine = strings.HasSuffix(line, "\\")
+			} else {
+				keyContent += line
+			}
+		}
+
+		t, err := extractTypeFromBase64Key(keyContent)
+		if err != nil {
+			return "", fmt.Errorf("extractTypeFromBase64Key: %w", err)
+		}
+		keyType = t
+	} else {
+		if strings.Contains(content, "-----BEGIN") {
+			// Convert PEM Keys to OpenSSH format
+			// Transform all legal line endings to a single "\n".
+			content = strings.NewReplacer("\r\n", "\n", "\r", "\n").Replace(content)
+
+			block, _ := pem.Decode([]byte(content))
+			if block == nil {
+				return "", fmt.Errorf("failed to parse PEM block containing the public key")
+			}
+			if strings.Contains(block.Type, "PRIVATE") {
+				return "", ErrKeyIsPrivate
+			}
+
+			pub, err := x509.ParsePKIXPublicKey(block.Bytes)
+			if err != nil {
+				var pk rsa.PublicKey
+				_, err2 := asn1.Unmarshal(block.Bytes, &pk)
+				if err2 != nil {
+					return "", fmt.Errorf("failed to parse DER encoded public key as either PKIX or PEM RSA Key: %v %w", err, err2)
+				}
+				pub = &pk
+			}
+
+			sshKey, err := ssh.NewPublicKey(pub)
+			if err != nil {
+				return "", fmt.Errorf("unable to convert to ssh public key: %w", err)
+			}
+			content = string(ssh.MarshalAuthorizedKey(sshKey))
+		}
+		// Parse OpenSSH format.
+
+		// Remove all newlines
+		content = strings.NewReplacer("\r\n", "", "\n", "").Replace(content)
+
+		parts := strings.SplitN(content, " ", 3)
+		switch len(parts) {
+		case 0:
+			return "", util.NewInvalidArgumentErrorf("empty key")
+		case 1:
+			keyContent = parts[0]
+		case 2:
+			keyType = parts[0]
+			keyContent = parts[1]
+		default:
+			keyType = parts[0]
+			keyContent = parts[1]
+			keyComment = parts[2]
+		}
+
+		// If keyType is not given, extract it from content. If given, validate it.
+		t, err := extractTypeFromBase64Key(keyContent)
+		if err != nil {
+			return "", fmt.Errorf("extractTypeFromBase64Key: %w", err)
+		}
+		if len(keyType) == 0 {
+			keyType = t
+		} else if keyType != t {
+			return "", fmt.Errorf("key type and content does not match: %s - %s", keyType, t)
+		}
+	}
+	// Finally we need to check whether we can actually read the proposed key:
+	_, _, _, _, err := ssh.ParseAuthorizedKey([]byte(keyType + " " + keyContent + " " + keyComment))
+	if err != nil {
+		return "", fmt.Errorf("invalid ssh public key: %w", err)
+	}
+	return keyType + " " + keyContent + " " + keyComment, nil
+}
+
+// CheckPublicKeyString checks if the given public key string is recognized by SSH.
+// It returns the actual public key line on success.
+func CheckPublicKeyString(content string) (_ string, err error) {
+	content, err = parseKeyString(content)
+	if err != nil {
+		return "", err
+	}
+
+	content = strings.TrimRight(content, "\n\r")
+	if strings.ContainsAny(content, "\n\r") {
+		return "", util.NewInvalidArgumentErrorf("only a single line with a single key please")
+	}
+
+	// remove any unnecessary whitespace now
+	content = strings.TrimSpace(content)
+
+	if !setting.SSH.MinimumKeySizeCheck {
+		return content, nil
+	}
+
+	var (
+		fnName  string
+		keyType string
+		length  int
+	)
+	if len(setting.SSH.KeygenPath) == 0 {
+		fnName = "SSHNativeParsePublicKey"
+		keyType, length, err = SSHNativeParsePublicKey(content)
+	} else {
+		fnName = "SSHKeyGenParsePublicKey"
+		keyType, length, err = SSHKeyGenParsePublicKey(content)
+	}
+	if err != nil {
+		return "", fmt.Errorf("%s: %w", fnName, err)
+	}
+	log.Trace("Key info [native: %v]: %s-%d", setting.SSH.StartBuiltinServer, keyType, length)
+
+	if minLen, found := setting.SSH.MinimumKeySizes[keyType]; found && length >= minLen {
+		return content, nil
+	} else if found && length < minLen {
+		return "", fmt.Errorf("key length is not enough: got %d, needs %d", length, minLen)
+	}
+	return "", fmt.Errorf("key type is not allowed: %s", keyType)
+}
+
+// SSHNativeParsePublicKey extracts the key type and length using the golang SSH library.
+func SSHNativeParsePublicKey(keyLine string) (string, int, error) {
+	fields := strings.Fields(keyLine)
+	if len(fields) < 2 {
+		return "", 0, fmt.Errorf("not enough fields in public key line: %s", keyLine)
+	}
+
+	raw, err := base64.StdEncoding.DecodeString(fields[1])
+	if err != nil {
+		return "", 0, err
+	}
+
+	pkey, err := ssh.ParsePublicKey(raw)
+	if err != nil {
+		if strings.Contains(err.Error(), "ssh: unknown key algorithm") {
+			return "", 0, ErrKeyUnableVerify{err.Error()}
+		}
+		return "", 0, fmt.Errorf("ParsePublicKey: %w", err)
+	}
+
+	// The ssh library can parse the key, so next we find out what key exactly we have.
+	switch pkey.Type() {
+	case ssh.KeyAlgoDSA:
+		rawPub := struct {
+			Name       string
+			P, Q, G, Y *big.Int
+		}{}
+		if err := ssh.Unmarshal(pkey.Marshal(), &rawPub); err != nil {
+			return "", 0, err
+		}
+		// as per https://bugzilla.mindrot.org/show_bug.cgi?id=1647 we should never
+		// see dsa keys != 1024 bit, but as it seems to work, we will not check here
+		return "dsa", rawPub.P.BitLen(), nil // use P as per crypto/dsa/dsa.go (is L)
+	case ssh.KeyAlgoRSA:
+		rawPub := struct {
+			Name string
+			E    *big.Int
+			N    *big.Int
+		}{}
+		if err := ssh.Unmarshal(pkey.Marshal(), &rawPub); err != nil {
+			return "", 0, err
+		}
+		return "rsa", rawPub.N.BitLen(), nil // use N as per crypto/rsa/rsa.go (is bits)
+	case ssh.KeyAlgoECDSA256:
+		return "ecdsa", 256, nil
+	case ssh.KeyAlgoECDSA384:
+		return "ecdsa", 384, nil
+	case ssh.KeyAlgoECDSA521:
+		return "ecdsa", 521, nil
+	case ssh.KeyAlgoED25519:
+		return "ed25519", 256, nil
+	case ssh.KeyAlgoSKECDSA256:
+		return "ecdsa-sk", 256, nil
+	case ssh.KeyAlgoSKED25519:
+		return "ed25519-sk", 256, nil
+	}
+	return "", 0, fmt.Errorf("unsupported key length detection for type: %s", pkey.Type())
+}
+
+// writeTmpKeyFile writes key content to a temporary file
+// and returns the name of that file, along with any possible errors.
+func writeTmpKeyFile(content string) (string, error) {
+	tmpFile, err := os.CreateTemp(setting.SSH.KeyTestPath, "gitea_keytest")
+	if err != nil {
+		return "", fmt.Errorf("TempFile: %w", err)
+	}
+	defer tmpFile.Close()
+
+	if _, err = tmpFile.WriteString(content); err != nil {
+		return "", fmt.Errorf("WriteString: %w", err)
+	}
+	return tmpFile.Name(), nil
+}
+
+// SSHKeyGenParsePublicKey extracts key type and length using ssh-keygen.
+func SSHKeyGenParsePublicKey(key string) (string, int, error) {
+	tmpName, err := writeTmpKeyFile(key)
+	if err != nil {
+		return "", 0, fmt.Errorf("writeTmpKeyFile: %w", err)
+	}
+	defer func() {
+		if err := util.Remove(tmpName); err != nil {
+			log.Warn("Unable to remove temporary key file: %s: Error: %v", tmpName, err)
+		}
+	}()
+
+	keygenPath := setting.SSH.KeygenPath
+	if len(keygenPath) == 0 {
+		keygenPath = "ssh-keygen"
+	}
+
+	stdout, stderr, err := process.GetManager().Exec("SSHKeyGenParsePublicKey", keygenPath, "-lf", tmpName)
+	if err != nil {
+		return "", 0, fmt.Errorf("fail to parse public key: %s - %s", err, stderr)
+	}
+	if strings.Contains(stdout, "is not a public key file") {
+		return "", 0, ErrKeyUnableVerify{stdout}
+	}
+
+	fields := strings.Split(stdout, " ")
+	if len(fields) < 4 {
+		return "", 0, fmt.Errorf("invalid public key line: %s", stdout)
+	}
+
+	keyType := strings.Trim(fields[len(fields)-1], "()\r\n")
+	length, err := strconv.ParseInt(fields[0], 10, 32)
+	if err != nil {
+		return "", 0, err
+	}
+	return strings.ToLower(keyType), int(length), nil
+}
diff --git a/models/asymkey/ssh_key_principals.go b/models/asymkey/ssh_key_principals.go
new file mode 100644
index 0000000..4e7dee2
--- /dev/null
+++ b/models/asymkey/ssh_key_principals.go
@@ -0,0 +1,96 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// AddPrincipalKey adds new principal to database and authorized_principals file.
+func AddPrincipalKey(ctx context.Context, ownerID int64, content string, authSourceID int64) (*PublicKey, error) {
+	dbCtx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	// Principals cannot be duplicated.
+	has, err := db.GetEngine(dbCtx).
+		Where("content = ? AND type = ?", content, KeyTypePrincipal).
+		Get(new(PublicKey))
+	if err != nil {
+		return nil, err
+	} else if has {
+		return nil, ErrKeyAlreadyExist{0, "", content}
+	}
+
+	key := &PublicKey{
+		OwnerID:       ownerID,
+		Name:          content,
+		Content:       content,
+		Mode:          perm.AccessModeWrite,
+		Type:          KeyTypePrincipal,
+		LoginSourceID: authSourceID,
+	}
+	if err = db.Insert(dbCtx, key); err != nil {
+		return nil, fmt.Errorf("addKey: %w", err)
+	}
+
+	if err = committer.Commit(); err != nil {
+		return nil, err
+	}
+
+	committer.Close()
+
+	return key, RewriteAllPrincipalKeys(ctx)
+}
+
+// CheckPrincipalKeyString strips spaces and returns an error if the given principal contains newlines
+func CheckPrincipalKeyString(ctx context.Context, user *user_model.User, content string) (_ string, err error) {
+	if setting.SSH.Disabled {
+		return "", db.ErrSSHDisabled{}
+	}
+
+	content = strings.TrimSpace(content)
+	if strings.ContainsAny(content, "\r\n") {
+		return "", util.NewInvalidArgumentErrorf("only a single line with a single principal please")
+	}
+
+	// check all the allowed principals, email, username or anything
+	// if any matches, return ok
+	for _, v := range setting.SSH.AuthorizedPrincipalsAllow {
+		switch v {
+		case "anything":
+			return content, nil
+		case "email":
+			emails, err := user_model.GetEmailAddresses(ctx, user.ID)
+			if err != nil {
+				return "", err
+			}
+			for _, email := range emails {
+				if !email.IsActivated {
+					continue
+				}
+				if content == email.Email {
+					return content, nil
+				}
+			}
+
+		case "username":
+			if content == user.Name {
+				return content, nil
+			}
+		}
+	}
+
+	return "", fmt.Errorf("didn't match allowed principals: %s", setting.SSH.AuthorizedPrincipalsAllow)
+}
diff --git a/models/asymkey/ssh_key_test.go b/models/asymkey/ssh_key_test.go
new file mode 100644
index 0000000..2625d6a
--- /dev/null
+++ b/models/asymkey/ssh_key_test.go
@@ -0,0 +1,513 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bytes"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/42wim/sshsig"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_SSHParsePublicKey(t *testing.T) {
+	testCases := []struct {
+		name          string
+		skipSSHKeygen bool
+		keyType       string
+		length        int
+		content       string
+	}{
+		{"rsa-1024", false, "rsa", 1024, "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDAu7tvIvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+BZ5WpKZp1jBeSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNxfEq7C9CeiX9pQEbEqJfkKCQ== nocomment\n"},
+		{"rsa-2048", false, "rsa", 2048, "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDMZXh+1OBUwSH9D45wTaxErQIN9IoC9xl7MKJkqvTvv6O5RR9YW/IK9FbfjXgXsppYGhsCZo1hFOOsXHMnfOORqu/xMDx4yPuyvKpw4LePEcg4TDipaDFuxbWOqc/BUZRZcXu41QAWfDLrInwsltWZHSeG7hjhpacl4FrVv9V1pS6Oc5Q1NxxEzTzuNLS/8diZrTm/YAQQ/+B+mzWI3zEtF4miZjjAljWd1LTBPvU23d29DcBmmFahcZ441XZsTeAwGxG/Q6j8NgNXj9WxMeWwxXV2jeAX/EBSpZrCVlCQ1yJswT6xCp8TuBnTiGWYMBNTbOZvPC4e0WI2/yZW/s5F nocomment"},
+		{"ecdsa-256", false, "ecdsa", 256, "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFQacN3PrOll7PXmN5B/ZNVahiUIqI05nbBlZk1KXsO3d06ktAWqbNflv2vEmA38bTFTfJ2sbn2B5ksT52cDDbA= nocomment"},
+		{"ecdsa-384", false, "ecdsa", 384, "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBINmioV+XRX1Fm9Qk2ehHXJ2tfVxW30ypUWZw670Zyq5GQfBAH6xjygRsJ5wWsHXBsGYgFUXIHvMKVAG1tpw7s6ax9oA+dJOJ7tj+vhn8joFqT+sg3LYHgZkHrfqryRasQ== nocomment"},
+		{"ecdsa-sk", true, "ecdsa-sk", 256, "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBGXEEzWmm1dxb+57RoK5KVCL0w2eNv9cqJX2AGGVlkFsVDhOXHzsadS3LTK4VlEbbrDMJdoti9yM8vclA8IeRacAAAAEc3NoOg== nocomment"},
+		{"ed25519-sk", true, "ed25519-sk", 256, "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIE7kM1R02+4ertDKGKEDcKG0s+2vyDDcIvceJ0Gqv5f1AAAABHNzaDo= nocomment"},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Run("Native", func(t *testing.T) {
+				keyTypeN, lengthN, err := SSHNativeParsePublicKey(tc.content)
+				require.NoError(t, err)
+				assert.Equal(t, tc.keyType, keyTypeN)
+				assert.EqualValues(t, tc.length, lengthN)
+			})
+			if tc.skipSSHKeygen {
+				return
+			}
+			t.Run("SSHKeygen", func(t *testing.T) {
+				keyTypeK, lengthK, err := SSHKeyGenParsePublicKey(tc.content)
+				if err != nil {
+					// Some servers do not support ecdsa format.
+					if !strings.Contains(err.Error(), "line 1 too long:") {
+						assert.FailNow(t, "%v", err)
+					}
+				}
+				assert.Equal(t, tc.keyType, keyTypeK)
+				assert.EqualValues(t, tc.length, lengthK)
+			})
+			t.Run("SSHParseKeyNative", func(t *testing.T) {
+				keyTypeK, lengthK, err := SSHNativeParsePublicKey(tc.content)
+				if err != nil {
+					assert.FailNow(t, "%v", err)
+				}
+				assert.Equal(t, tc.keyType, keyTypeK)
+				assert.EqualValues(t, tc.length, lengthK)
+			})
+		})
+	}
+}
+
+func Test_CheckPublicKeyString(t *testing.T) {
+	oldValue := setting.SSH.MinimumKeySizeCheck
+	setting.SSH.MinimumKeySizeCheck = false
+	for _, test := range []struct {
+		content string
+	}{
+		{"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDAu7tvIvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+BZ5WpKZp1jBeSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNxfEq7C9CeiX9pQEbEqJfkKCQ== nocomment\n"},
+		{"ssh-rsa AAAAB3NzaC1yc2EA\r\nAAADAQABAAAAgQDAu7tvIvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+\r\nBZ5WpKZp1jBeSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNx\r\nfEq7C9CeiX9pQEbEqJfkKCQ== nocomment\r\n\r\n"},
+		{"ssh-rsa AAAAB3NzaC1yc2EA\r\nAAADAQABAAAAgQDAu7tvI\nvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+\r\nBZ5WpKZp1jBeSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvW\nqIwC4prx/WVk2wLTJjzBAhyNx\r\nfEq7C9CeiX9pQEbEqJfkKCQ== nocomment\r\n\r\n"},
+		{"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICV0MGX/W9IvLA4FXpIuUcdDcbj5KX4syHgsTy7soVgf"},
+		{"\r\nssh-ed25519 \r\nAAAAC3NzaC1lZDI1NTE5AAAAICV0MGX/W9IvLA4FXpIuUcdDcbj5KX4syHgsTy7soVgf\r\n\r\n"},
+		{"sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBGXEEzWmm1dxb+57RoK5KVCL0w2eNv9cqJX2AGGVlkFsVDhOXHzsadS3LTK4VlEbbrDMJdoti9yM8vclA8IeRacAAAAEc3NoOg== nocomment"},
+		{"sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIE7kM1R02+4ertDKGKEDcKG0s+2vyDDcIvceJ0Gqv5f1AAAABHNzaDo= nocomment"},
+		{`---- BEGIN SSH2 PUBLIC KEY ----
+Comment: "1024-bit DSA, converted by andrew@phaedra from OpenSSH"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+---- END SSH2 PUBLIC KEY ----
+`},
+		{`---- BEGIN SSH2 PUBLIC KEY ----
+Comment: "1024-bit RSA, converted by andrew@phaedra from OpenSSH"
+AAAAB3NzaC1yc2EAAAADAQABAAAAgQDAu7tvIvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxB
+cQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+BZ5WpKZp1jBeSjH2G7lxet9kbcH+kIV
+j0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNxfEq7C9CeiX9pQEbEqJfkKCQ==
+---- END SSH2 PUBLIC KEY ----
+`},
+		{`-----BEGIN RSA PUBLIC KEY-----
+MIGJAoGBAMC7u28i9fpketFe5k1+RHdcsdKy4Ir1mfdfnyXEFxDO6jnFmAHq9HDC
+b9C0m4X7Nk+1jmGxAgsEuYX4FnlakpmnWMF5KMfYbuXF632Rtwf6QhWPS08USjIo
+j3C9aojALimvH9ZWTbAtMmPMECHI3F8SrsL0J6Jf2lARsSol+QoJAgMBAAE=
+-----END RSA PUBLIC KEY-----
+`},
+		{`-----BEGIN PUBLIC KEY-----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+-----END PUBLIC KEY-----
+`},
+		{`-----BEGIN PUBLIC KEY-----
+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAu7tvIvX6ZHrRXuZNfkR3XLHS
+suCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+BZ5WpKZp1jB
+eSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNxfEq7C
+9CeiX9pQEbEqJfkKCQIDAQAB
+-----END PUBLIC KEY-----
+`},
+		{`-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzGV4ftTgVMEh/Q+OcE2s
+RK0CDfSKAvcZezCiZKr077+juUUfWFvyCvRW3414F7KaWBobAmaNYRTjrFxzJ3zj
+karv8TA8eMj7sryqcOC3jxHIOEw4qWgxbsW1jqnPwVGUWXF7uNUAFnwy6yJ8LJbV
+mR0nhu4Y4aWnJeBa1b/VdaUujnOUNTccRM087jS0v/HYma05v2AEEP/gfps1iN8x
+LReJomY4wJY1ndS0wT71Nt3dvQ3AZphWoXGeONV2bE3gMBsRv0Oo/DYDV4/VsTHl
+sMV1do3gF/xAUqWawlZQkNcibME+sQqfE7gZ04hlmDATU2zmbzwuHtFiNv8mVv7O
+RQIDAQAB
+-----END PUBLIC KEY-----
+`},
+		{`---- BEGIN SSH2 PUBLIC KEY ----
+Comment: "256-bit ED25519, converted by andrew@phaedra from OpenSSH"
+AAAAC3NzaC1lZDI1NTE5AAAAICV0MGX/W9IvLA4FXpIuUcdDcbj5KX4syHgsTy7soVgf
+---- END SSH2 PUBLIC KEY ----
+`},
+	} {
+		_, err := CheckPublicKeyString(test.content)
+		require.NoError(t, err)
+	}
+	setting.SSH.MinimumKeySizeCheck = oldValue
+	for _, invalidKeys := range []struct {
+		content string
+	}{
+		{"test"},
+		{"---- NOT A REAL KEY ----"},
+		{"bad\nkey"},
+		{"\t\t:)\t\r\n"},
+		{"\r\ntest \r\ngitea\r\n\r\n"},
+	} {
+		_, err := CheckPublicKeyString(invalidKeys.content)
+		require.Error(t, err)
+	}
+}
+
+func Test_calcFingerprint(t *testing.T) {
+	testCases := []struct {
+		name          string
+		skipSSHKeygen bool
+		fp            string
+		content       string
+	}{
+		{"rsa-1024", false, "SHA256:vSnDkvRh/xM6kMxPidLgrUhq3mCN7CDaronCEm2joyQ", "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQDAu7tvIvX6ZHrRXuZNfkR3XLHSsuCK9Zn3X58lxBcQzuo5xZgB6vRwwm/QtJuF+zZPtY5hsQILBLmF+BZ5WpKZp1jBeSjH2G7lxet9kbcH+kIVj0tPFEoyKI9wvWqIwC4prx/WVk2wLTJjzBAhyNxfEq7C9CeiX9pQEbEqJfkKCQ== nocomment\n"},
+		{"rsa-2048", false, "SHA256:ZHD//a1b9VuTq9XSunAeYjKeU1xDa2tBFZYrFr2Okkg", "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDMZXh+1OBUwSH9D45wTaxErQIN9IoC9xl7MKJkqvTvv6O5RR9YW/IK9FbfjXgXsppYGhsCZo1hFOOsXHMnfOORqu/xMDx4yPuyvKpw4LePEcg4TDipaDFuxbWOqc/BUZRZcXu41QAWfDLrInwsltWZHSeG7hjhpacl4FrVv9V1pS6Oc5Q1NxxEzTzuNLS/8diZrTm/YAQQ/+B+mzWI3zEtF4miZjjAljWd1LTBPvU23d29DcBmmFahcZ441XZsTeAwGxG/Q6j8NgNXj9WxMeWwxXV2jeAX/EBSpZrCVlCQ1yJswT6xCp8TuBnTiGWYMBNTbOZvPC4e0WI2/yZW/s5F nocomment"},
+		{"ecdsa-256", false, "SHA256:Bqx/xgWqRKLtkZ0Lr4iZpgb+5lYsFpSwXwVZbPwuTRw", "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBFQacN3PrOll7PXmN5B/ZNVahiUIqI05nbBlZk1KXsO3d06ktAWqbNflv2vEmA38bTFTfJ2sbn2B5ksT52cDDbA= nocomment"},
+		{"ecdsa-384", false, "SHA256:4qfJOgJDtUd8BrEjyVNdI8IgjiZKouztVde43aDhe1E", "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBINmioV+XRX1Fm9Qk2ehHXJ2tfVxW30ypUWZw670Zyq5GQfBAH6xjygRsJ5wWsHXBsGYgFUXIHvMKVAG1tpw7s6ax9oA+dJOJ7tj+vhn8joFqT+sg3LYHgZkHrfqryRasQ== nocomment"},
+		{"ecdsa-sk", true, "SHA256:4wcIu4z+53gHc+db85OPfy8IydyNzPLCr6kHIs625LQ", "sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBGXEEzWmm1dxb+57RoK5KVCL0w2eNv9cqJX2AGGVlkFsVDhOXHzsadS3LTK4VlEbbrDMJdoti9yM8vclA8IeRacAAAAEc3NoOg== nocomment"},
+		{"ed25519-sk", true, "SHA256:RB4ku1OeWKN7fLMrjxz38DK0mp1BnOPBx4BItjTvJ0g", "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIE7kM1R02+4ertDKGKEDcKG0s+2vyDDcIvceJ0Gqv5f1AAAABHNzaDo= nocomment"},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Run("Native", func(t *testing.T) {
+				fpN, err := calcFingerprintNative(tc.content)
+				require.NoError(t, err)
+				assert.Equal(t, tc.fp, fpN)
+			})
+			if tc.skipSSHKeygen {
+				return
+			}
+			t.Run("SSHKeygen", func(t *testing.T) {
+				fpK, err := calcFingerprintSSHKeygen(tc.content)
+				require.NoError(t, err)
+				assert.Equal(t, tc.fp, fpK)
+			})
+		})
+	}
+}
+
+var (
+	// Generated with "ssh-keygen -C test@rekor.dev -f id_rsa"
+	sshPrivateKey = `-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----
+`
+	sshPublicKey = `ssh-rsa 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 test@rekor.dev
+`
+	// Generated with "ssh-keygen -C other-test@rekor.dev -f id_rsa"
+	otherSSHPrivateKey = `-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----
+`
+	otherSSHPublicKey = `ssh-rsa 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 other-test@rekor.dev
+`
+
+	// Generated with ssh-keygen -C test@rekor.dev -t ed25519 -f id_ed25519
+	ed25519PrivateKey = `-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACBB45zRHxPPFtabwS3Vd6Lb9vMe+tIHZj2qN5VQ+bgLfQAAAJgyRa3cMkWt
+3AAAAAtzc2gtZWQyNTUxOQAAACBB45zRHxPPFtabwS3Vd6Lb9vMe+tIHZj2qN5VQ+bgLfQ
+AAAED7y4N/DsVnRQiBZNxEWdsJ9RmbranvtQ3X9jnb6gFed0HjnNEfE88W1pvBLdV3otv2
+8x760gdmPao3lVD5uAt9AAAADnRlc3RAcmVrb3IuZGV2AQIDBAUGBw==
+-----END OPENSSH PRIVATE KEY-----
+`
+	ed25519PublicKey = `ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEHjnNEfE88W1pvBLdV3otv28x760gdmPao3lVD5uAt9 test@rekor.dev
+`
+)
+
+func TestFromOpenSSH(t *testing.T) {
+	for _, tt := range []struct {
+		name string
+		pub  string
+		priv string
+	}{
+		{
+			name: "rsa",
+			pub:  sshPublicKey,
+			priv: sshPrivateKey,
+		},
+		{
+			name: "ed25519",
+			pub:  ed25519PublicKey,
+			priv: ed25519PrivateKey,
+		},
+	} {
+		if _, err := exec.LookPath("ssh-keygen"); err != nil {
+			t.Skip("skip TestFromOpenSSH: missing ssh-keygen in PATH")
+		}
+		t.Run(tt.name, func(t *testing.T) {
+			tt := tt
+
+			// Test that a signature from the cli can validate here.
+			td := t.TempDir()
+
+			data := []byte("hello, ssh world")
+			dataPath := write(t, data, td, "data")
+
+			privPath := write(t, []byte(tt.priv), td, "id")
+			write(t, []byte(tt.pub), td, "id.pub")
+
+			sigPath := dataPath + ".sig"
+			run(t, nil, "ssh-keygen", "-Y", "sign", "-n", "file", "-f", privPath, dataPath)
+
+			sigBytes, err := os.ReadFile(sigPath)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if err := sshsig.Verify(bytes.NewReader(data), sigBytes, []byte(tt.pub), "file"); err != nil {
+				t.Error(err)
+			}
+
+			// It should not verify if we check against another public key
+			if err := sshsig.Verify(bytes.NewReader(data), sigBytes, []byte(otherSSHPublicKey), "file"); err == nil {
+				t.Error("expected error with incorrect key")
+			}
+
+			// It should not verify if the data is tampered
+			if err := sshsig.Verify(strings.NewReader("bad data"), sigBytes, []byte(sshPublicKey), "file"); err == nil {
+				t.Error("expected error with incorrect data")
+			}
+		})
+	}
+}
+
+func TestToOpenSSH(t *testing.T) {
+	for _, tt := range []struct {
+		name string
+		pub  string
+		priv string
+	}{
+		{
+			name: "rsa",
+			pub:  sshPublicKey,
+			priv: sshPrivateKey,
+		},
+		{
+			name: "ed25519",
+			pub:  ed25519PublicKey,
+			priv: ed25519PrivateKey,
+		},
+	} {
+		if _, err := exec.LookPath("ssh-keygen"); err != nil {
+			t.Skip("skip TestToOpenSSH: missing ssh-keygen in PATH")
+		}
+		t.Run(tt.name, func(t *testing.T) {
+			tt := tt
+			// Test that a signature from here can validate in the CLI.
+			td := t.TempDir()
+
+			data := []byte("hello, ssh world")
+			write(t, data, td, "data")
+
+			armored, err := sshsig.Sign([]byte(tt.priv), bytes.NewReader(data), "file")
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			sigPath := write(t, armored, td, "oursig")
+
+			// Create an allowed_signers file with two keys to check against.
+			allowedSigner := "test@rekor.dev " + tt.pub + "\n"
+			allowedSigner += "othertest@rekor.dev " + otherSSHPublicKey + "\n"
+			allowedSigners := write(t, []byte(allowedSigner), td, "allowed_signer")
+
+			// We use the correct principal here so it should work.
+			run(t, data, "ssh-keygen", "-Y", "verify", "-f", allowedSigners,
+				"-I", "test@rekor.dev", "-n", "file", "-s", sigPath)
+
+			// Just to be sure, check against the other public key as well.
+			runErr(t, data, "ssh-keygen", "-Y", "verify", "-f", allowedSigners,
+				"-I", "othertest@rekor.dev", "-n", "file", "-s", sigPath)
+
+			// It should error if we run it against other data
+			data = []byte("other data!")
+			runErr(t, data, "ssh-keygen", "-Y", "check-novalidate", "-n", "file", "-s", sigPath)
+		})
+	}
+}
+
+func TestRoundTrip(t *testing.T) {
+	data := []byte("my good data to be signed!")
+
+	// Create one extra signature for all the tests.
+	otherSig, err := sshsig.Sign([]byte(otherSSHPrivateKey), bytes.NewReader(data), "file")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, tt := range []struct {
+		name string
+		pub  string
+		priv string
+	}{
+		{
+			name: "rsa",
+			pub:  sshPublicKey,
+			priv: sshPrivateKey,
+		},
+		{
+			name: "ed25519",
+			pub:  ed25519PublicKey,
+			priv: ed25519PrivateKey,
+		},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			tt := tt
+			sig, err := sshsig.Sign([]byte(tt.priv), bytes.NewReader(data), "file")
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			// Check the signature against that data and public key
+			if err := sshsig.Verify(bytes.NewReader(data), sig, []byte(tt.pub), "file"); err != nil {
+				t.Error(err)
+			}
+
+			// Now check it against invalid data.
+			if err := sshsig.Verify(strings.NewReader("invalid data!"), sig, []byte(tt.pub), "file"); err == nil {
+				t.Error("expected error!")
+			}
+
+			// Now check it against the wrong key.
+			if err := sshsig.Verify(bytes.NewReader(data), sig, []byte(otherSSHPublicKey), "file"); err == nil {
+				t.Error("expected error!")
+			}
+
+			// Now check it against an invalid signature data.
+			if err := sshsig.Verify(bytes.NewReader(data), []byte("invalid signature!"), []byte(tt.pub), "file"); err == nil {
+				t.Error("expected error!")
+			}
+
+			// Once more, use the wrong signature and check it against the original (wrong public key)
+			if err := sshsig.Verify(bytes.NewReader(data), otherSig, []byte(tt.pub), "file"); err == nil {
+				t.Error("expected error!")
+			}
+			// It should work against the correct public key.
+			if err := sshsig.Verify(bytes.NewReader(data), otherSig, []byte(otherSSHPublicKey), "file"); err != nil {
+				t.Error(err)
+			}
+		})
+	}
+}
+
+func write(t *testing.T, d []byte, fp ...string) string {
+	p := filepath.Join(fp...)
+	if err := os.WriteFile(p, d, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	return p
+}
+
+func run(t *testing.T, stdin []byte, args ...string) {
+	t.Helper()
+	/* #nosec */
+	cmd := exec.Command(args[0], args[1:]...)
+	cmd.Stdin = bytes.NewReader(stdin)
+	out, err := cmd.CombinedOutput()
+	t.Logf("cmd %v: %s", cmd, string(out))
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func runErr(t *testing.T, stdin []byte, args ...string) {
+	t.Helper()
+	/* #nosec */
+	cmd := exec.Command(args[0], args[1:]...)
+	cmd.Stdin = bytes.NewReader(stdin)
+	out, err := cmd.CombinedOutput()
+	t.Logf("cmd %v: %s", cmd, string(out))
+	if err == nil {
+		t.Fatal("expected error")
+	}
+}
+
+func Test_PublicKeysAreExternallyManaged(t *testing.T) {
+	key1 := unittest.AssertExistsAndLoadBean(t, &PublicKey{ID: 1})
+	externals, err := PublicKeysAreExternallyManaged(db.DefaultContext, []*PublicKey{key1})
+	require.NoError(t, err)
+	assert.Len(t, externals, 1)
+	assert.False(t, externals[0])
+}
diff --git a/models/asymkey/ssh_key_verify.go b/models/asymkey/ssh_key_verify.go
new file mode 100644
index 0000000..208288c
--- /dev/null
+++ b/models/asymkey/ssh_key_verify.go
@@ -0,0 +1,55 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package asymkey
+
+import (
+	"bytes"
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/42wim/sshsig"
+)
+
+// VerifySSHKey marks a SSH key as verified
+func VerifySSHKey(ctx context.Context, ownerID int64, fingerprint, token, signature string) (string, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return "", err
+	}
+	defer committer.Close()
+
+	key := new(PublicKey)
+
+	has, err := db.GetEngine(ctx).Where("owner_id = ? AND fingerprint = ?", ownerID, fingerprint).Get(key)
+	if err != nil {
+		return "", err
+	} else if !has {
+		return "", ErrKeyNotExist{}
+	}
+
+	err = sshsig.Verify(bytes.NewBuffer([]byte(token)), []byte(signature), []byte(key.Content), "gitea")
+	if err != nil {
+		// edge case for Windows based shells that will add CR LF if piped to ssh-keygen command
+		// see https://github.com/PowerShell/PowerShell/issues/5974
+		if sshsig.Verify(bytes.NewBuffer([]byte(token+"\r\n")), []byte(signature), []byte(key.Content), "gitea") != nil {
+			log.Error("Unable to validate token signature. Error: %v", err)
+			return "", ErrSSHInvalidTokenSignature{
+				Fingerprint: key.Fingerprint,
+			}
+		}
+	}
+
+	key.Verified = true
+	if _, err := db.GetEngine(ctx).ID(key.ID).Cols("verified").Update(key); err != nil {
+		return "", err
+	}
+
+	if err := committer.Commit(); err != nil {
+		return "", err
+	}
+
+	return key.Fingerprint, nil
+}
diff --git a/models/auth/TestOrphanedOAuth2Applications/oauth2_application.yaml b/models/auth/TestOrphanedOAuth2Applications/oauth2_application.yaml
new file mode 100644
index 0000000..cccb404
--- /dev/null
+++ b/models/auth/TestOrphanedOAuth2Applications/oauth2_application.yaml
@@ -0,0 +1,33 @@
+-
+  id: 1000
+  uid: 0
+  name: "Git Credential Manager"
+  client_id: "e90ee53c-94e2-48ac-9358-a874fb9e0662"
+  redirect_uris: '["http://127.0.0.1", "https://127.0.0.1"]'
+  created_unix: 1712358091
+  updated_unix: 1712358091
+-
+  id: 1001
+  uid: 0
+  name: "git-credential-oauth"
+  client_id: "a4792ccc-144e-407e-86c9-5e7d8d9c3269"
+  redirect_uris: '["http://127.0.0.1", "https://127.0.0.1"]'
+  created_unix: 1712358091
+  updated_unix: 1712358091
+
+-
+  id: 1002
+  uid: 1234567890
+  name: "Should be removed"
+  client_id: "deadc0de-badd-dd11-fee1-deaddecafbad"
+  redirect_uris: '["http://127.0.0.1", "https://127.0.0.1"]'
+  created_unix: 1712358091
+  updated_unix: 1712358091
+-
+  id: 1003
+  uid: 0
+  name: "Global Auth source that should be kept"
+  client_id: "2f3467c1-7b3b-463d-ab04-2ae2b2712826"
+  redirect_uris: '["http://example.com/globalapp", "https://example.com/globalapp"]'
+  created_unix: 1732387292
+  updated_unix: 1732387292
diff --git a/models/auth/access_token.go b/models/auth/access_token.go
new file mode 100644
index 0000000..63331b4
--- /dev/null
+++ b/models/auth/access_token.go
@@ -0,0 +1,236 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"crypto/subtle"
+	"encoding/hex"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	lru "github.com/hashicorp/golang-lru/v2"
+	"xorm.io/builder"
+)
+
+// ErrAccessTokenNotExist represents a "AccessTokenNotExist" kind of error.
+type ErrAccessTokenNotExist struct {
+	Token string
+}
+
+// IsErrAccessTokenNotExist checks if an error is a ErrAccessTokenNotExist.
+func IsErrAccessTokenNotExist(err error) bool {
+	_, ok := err.(ErrAccessTokenNotExist)
+	return ok
+}
+
+func (err ErrAccessTokenNotExist) Error() string {
+	return fmt.Sprintf("access token does not exist [sha: %s]", err.Token)
+}
+
+func (err ErrAccessTokenNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrAccessTokenEmpty represents a "AccessTokenEmpty" kind of error.
+type ErrAccessTokenEmpty struct{}
+
+// IsErrAccessTokenEmpty checks if an error is a ErrAccessTokenEmpty.
+func IsErrAccessTokenEmpty(err error) bool {
+	_, ok := err.(ErrAccessTokenEmpty)
+	return ok
+}
+
+func (err ErrAccessTokenEmpty) Error() string {
+	return "access token is empty"
+}
+
+func (err ErrAccessTokenEmpty) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+var successfulAccessTokenCache *lru.Cache[string, any]
+
+// AccessToken represents a personal access token.
+type AccessToken struct {
+	ID             int64 `xorm:"pk autoincr"`
+	UID            int64 `xorm:"INDEX"`
+	Name           string
+	Token          string `xorm:"-"`
+	TokenHash      string `xorm:"UNIQUE"` // sha256 of token
+	TokenSalt      string
+	TokenLastEight string `xorm:"INDEX token_last_eight"`
+	Scope          AccessTokenScope
+
+	CreatedUnix       timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix       timeutil.TimeStamp `xorm:"INDEX updated"`
+	HasRecentActivity bool               `xorm:"-"`
+	HasUsed           bool               `xorm:"-"`
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (t *AccessToken) AfterLoad() {
+	t.HasUsed = t.UpdatedUnix > t.CreatedUnix
+	t.HasRecentActivity = t.UpdatedUnix.AddDuration(7*24*time.Hour) > timeutil.TimeStampNow()
+}
+
+func init() {
+	db.RegisterModel(new(AccessToken), func() error {
+		if setting.SuccessfulTokensCacheSize > 0 {
+			var err error
+			successfulAccessTokenCache, err = lru.New[string, any](setting.SuccessfulTokensCacheSize)
+			if err != nil {
+				return fmt.Errorf("unable to allocate AccessToken cache: %w", err)
+			}
+		} else {
+			successfulAccessTokenCache = nil
+		}
+		return nil
+	})
+}
+
+// NewAccessToken creates new access token.
+func NewAccessToken(ctx context.Context, t *AccessToken) error {
+	salt, err := util.CryptoRandomString(10)
+	if err != nil {
+		return err
+	}
+	token, err := util.CryptoRandomBytes(20)
+	if err != nil {
+		return err
+	}
+	t.TokenSalt = salt
+	t.Token = hex.EncodeToString(token)
+	t.TokenHash = HashToken(t.Token, t.TokenSalt)
+	t.TokenLastEight = t.Token[len(t.Token)-8:]
+	_, err = db.GetEngine(ctx).Insert(t)
+	return err
+}
+
+// DisplayPublicOnly whether to display this as a public-only token.
+func (t *AccessToken) DisplayPublicOnly() bool {
+	publicOnly, err := t.Scope.PublicOnly()
+	if err != nil {
+		return false
+	}
+	return publicOnly
+}
+
+func getAccessTokenIDFromCache(token string) int64 {
+	if successfulAccessTokenCache == nil {
+		return 0
+	}
+	tInterface, ok := successfulAccessTokenCache.Get(token)
+	if !ok {
+		return 0
+	}
+	t, ok := tInterface.(int64)
+	if !ok {
+		return 0
+	}
+	return t
+}
+
+// GetAccessTokenBySHA returns access token by given token value
+func GetAccessTokenBySHA(ctx context.Context, token string) (*AccessToken, error) {
+	if token == "" {
+		return nil, ErrAccessTokenEmpty{}
+	}
+	// A token is defined as being SHA1 sum these are 40 hexadecimal bytes long
+	if len(token) != 40 {
+		return nil, ErrAccessTokenNotExist{token}
+	}
+	for _, x := range []byte(token) {
+		if x < '0' || (x > '9' && x < 'a') || x > 'f' {
+			return nil, ErrAccessTokenNotExist{token}
+		}
+	}
+
+	lastEight := token[len(token)-8:]
+
+	if id := getAccessTokenIDFromCache(token); id > 0 {
+		accessToken := &AccessToken{
+			TokenLastEight: lastEight,
+		}
+		// Re-get the token from the db in case it has been deleted in the intervening period
+		has, err := db.GetEngine(ctx).ID(id).Get(accessToken)
+		if err != nil {
+			return nil, err
+		}
+		if has {
+			return accessToken, nil
+		}
+		successfulAccessTokenCache.Remove(token)
+	}
+
+	var tokens []AccessToken
+	err := db.GetEngine(ctx).Table(&AccessToken{}).Where("token_last_eight = ?", lastEight).Find(&tokens)
+	if err != nil {
+		return nil, err
+	} else if len(tokens) == 0 {
+		return nil, ErrAccessTokenNotExist{token}
+	}
+
+	for _, t := range tokens {
+		tempHash := HashToken(token, t.TokenSalt)
+		if subtle.ConstantTimeCompare([]byte(t.TokenHash), []byte(tempHash)) == 1 {
+			if successfulAccessTokenCache != nil {
+				successfulAccessTokenCache.Add(token, t.ID)
+			}
+			return &t, nil
+		}
+	}
+	return nil, ErrAccessTokenNotExist{token}
+}
+
+// AccessTokenByNameExists checks if a token name has been used already by a user.
+func AccessTokenByNameExists(ctx context.Context, token *AccessToken) (bool, error) {
+	return db.GetEngine(ctx).Table("access_token").Where("name = ?", token.Name).And("uid = ?", token.UID).Exist()
+}
+
+// ListAccessTokensOptions contain filter options
+type ListAccessTokensOptions struct {
+	db.ListOptions
+	Name   string
+	UserID int64
+}
+
+func (opts ListAccessTokensOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	// user id is required, otherwise it will return all result which maybe a possible bug
+	cond = cond.And(builder.Eq{"uid": opts.UserID})
+	if len(opts.Name) > 0 {
+		cond = cond.And(builder.Eq{"name": opts.Name})
+	}
+	return cond
+}
+
+func (opts ListAccessTokensOptions) ToOrders() string {
+	return "created_unix DESC"
+}
+
+// UpdateAccessToken updates information of access token.
+func UpdateAccessToken(ctx context.Context, t *AccessToken) error {
+	_, err := db.GetEngine(ctx).ID(t.ID).AllCols().Update(t)
+	return err
+}
+
+// DeleteAccessTokenByID deletes access token by given ID.
+func DeleteAccessTokenByID(ctx context.Context, id, userID int64) error {
+	cnt, err := db.GetEngine(ctx).ID(id).Delete(&AccessToken{
+		UID: userID,
+	})
+	if err != nil {
+		return err
+	} else if cnt != 1 {
+		return ErrAccessTokenNotExist{}
+	}
+	return nil
+}
diff --git a/models/auth/access_token_scope.go b/models/auth/access_token_scope.go
new file mode 100644
index 0000000..003ca5c
--- /dev/null
+++ b/models/auth/access_token_scope.go
@@ -0,0 +1,350 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/perm"
+)
+
+// AccessTokenScopeCategory represents the scope category for an access token
+type AccessTokenScopeCategory int
+
+const (
+	AccessTokenScopeCategoryActivityPub = iota
+	AccessTokenScopeCategoryAdmin
+	AccessTokenScopeCategoryMisc // WARN: this is now just a placeholder, don't remove it which will change the following values
+	AccessTokenScopeCategoryNotification
+	AccessTokenScopeCategoryOrganization
+	AccessTokenScopeCategoryPackage
+	AccessTokenScopeCategoryIssue
+	AccessTokenScopeCategoryRepository
+	AccessTokenScopeCategoryUser
+)
+
+// AllAccessTokenScopeCategories contains all access token scope categories
+var AllAccessTokenScopeCategories = []AccessTokenScopeCategory{
+	AccessTokenScopeCategoryActivityPub,
+	AccessTokenScopeCategoryAdmin,
+	AccessTokenScopeCategoryMisc,
+	AccessTokenScopeCategoryNotification,
+	AccessTokenScopeCategoryOrganization,
+	AccessTokenScopeCategoryPackage,
+	AccessTokenScopeCategoryIssue,
+	AccessTokenScopeCategoryRepository,
+	AccessTokenScopeCategoryUser,
+}
+
+// AccessTokenScopeLevel represents the access levels without a given scope category
+type AccessTokenScopeLevel int
+
+const (
+	NoAccess AccessTokenScopeLevel = iota
+	Read
+	Write
+)
+
+// AccessTokenScope represents the scope for an access token.
+type AccessTokenScope string
+
+// for all categories, write implies read
+const (
+	AccessTokenScopeAll        AccessTokenScope = "all"
+	AccessTokenScopePublicOnly AccessTokenScope = "public-only" // limited to public orgs/repos
+
+	AccessTokenScopeReadActivityPub  AccessTokenScope = "read:activitypub"
+	AccessTokenScopeWriteActivityPub AccessTokenScope = "write:activitypub"
+
+	AccessTokenScopeReadAdmin  AccessTokenScope = "read:admin"
+	AccessTokenScopeWriteAdmin AccessTokenScope = "write:admin"
+
+	AccessTokenScopeReadMisc  AccessTokenScope = "read:misc"
+	AccessTokenScopeWriteMisc AccessTokenScope = "write:misc"
+
+	AccessTokenScopeReadNotification  AccessTokenScope = "read:notification"
+	AccessTokenScopeWriteNotification AccessTokenScope = "write:notification"
+
+	AccessTokenScopeReadOrganization  AccessTokenScope = "read:organization"
+	AccessTokenScopeWriteOrganization AccessTokenScope = "write:organization"
+
+	AccessTokenScopeReadPackage  AccessTokenScope = "read:package"
+	AccessTokenScopeWritePackage AccessTokenScope = "write:package"
+
+	AccessTokenScopeReadIssue  AccessTokenScope = "read:issue"
+	AccessTokenScopeWriteIssue AccessTokenScope = "write:issue"
+
+	AccessTokenScopeReadRepository  AccessTokenScope = "read:repository"
+	AccessTokenScopeWriteRepository AccessTokenScope = "write:repository"
+
+	AccessTokenScopeReadUser  AccessTokenScope = "read:user"
+	AccessTokenScopeWriteUser AccessTokenScope = "write:user"
+)
+
+// accessTokenScopeBitmap represents a bitmap of access token scopes.
+type accessTokenScopeBitmap uint64
+
+// Bitmap of each scope, including the child scopes.
+const (
+	// AccessTokenScopeAllBits is the bitmap of all access token scopes
+	accessTokenScopeAllBits accessTokenScopeBitmap = accessTokenScopeWriteActivityPubBits |
+		accessTokenScopeWriteAdminBits | accessTokenScopeWriteMiscBits | accessTokenScopeWriteNotificationBits |
+		accessTokenScopeWriteOrganizationBits | accessTokenScopeWritePackageBits | accessTokenScopeWriteIssueBits |
+		accessTokenScopeWriteRepositoryBits | accessTokenScopeWriteUserBits
+
+	accessTokenScopePublicOnlyBits accessTokenScopeBitmap = 1 << iota
+
+	accessTokenScopeReadActivityPubBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteActivityPubBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadActivityPubBits
+
+	accessTokenScopeReadAdminBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteAdminBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadAdminBits
+
+	accessTokenScopeReadMiscBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteMiscBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadMiscBits
+
+	accessTokenScopeReadNotificationBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteNotificationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadNotificationBits
+
+	accessTokenScopeReadOrganizationBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteOrganizationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadOrganizationBits
+
+	accessTokenScopeReadPackageBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWritePackageBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadPackageBits
+
+	accessTokenScopeReadIssueBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteIssueBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadIssueBits
+
+	accessTokenScopeReadRepositoryBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteRepositoryBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadRepositoryBits
+
+	accessTokenScopeReadUserBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteUserBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadUserBits
+
+	// The current implementation only supports up to 64 token scopes.
+	// If we need to support > 64 scopes,
+	// refactoring the whole implementation in this file (and only this file) is needed.
+)
+
+// allAccessTokenScopes contains all access token scopes.
+// The order is important: parent scope must precede child scopes.
+var allAccessTokenScopes = []AccessTokenScope{
+	AccessTokenScopePublicOnly,
+	AccessTokenScopeWriteActivityPub, AccessTokenScopeReadActivityPub,
+	AccessTokenScopeWriteAdmin, AccessTokenScopeReadAdmin,
+	AccessTokenScopeWriteMisc, AccessTokenScopeReadMisc,
+	AccessTokenScopeWriteNotification, AccessTokenScopeReadNotification,
+	AccessTokenScopeWriteOrganization, AccessTokenScopeReadOrganization,
+	AccessTokenScopeWritePackage, AccessTokenScopeReadPackage,
+	AccessTokenScopeWriteIssue, AccessTokenScopeReadIssue,
+	AccessTokenScopeWriteRepository, AccessTokenScopeReadRepository,
+	AccessTokenScopeWriteUser, AccessTokenScopeReadUser,
+}
+
+// allAccessTokenScopeBits contains all access token scopes.
+var allAccessTokenScopeBits = map[AccessTokenScope]accessTokenScopeBitmap{
+	AccessTokenScopeAll:               accessTokenScopeAllBits,
+	AccessTokenScopePublicOnly:        accessTokenScopePublicOnlyBits,
+	AccessTokenScopeReadActivityPub:   accessTokenScopeReadActivityPubBits,
+	AccessTokenScopeWriteActivityPub:  accessTokenScopeWriteActivityPubBits,
+	AccessTokenScopeReadAdmin:         accessTokenScopeReadAdminBits,
+	AccessTokenScopeWriteAdmin:        accessTokenScopeWriteAdminBits,
+	AccessTokenScopeReadMisc:          accessTokenScopeReadMiscBits,
+	AccessTokenScopeWriteMisc:         accessTokenScopeWriteMiscBits,
+	AccessTokenScopeReadNotification:  accessTokenScopeReadNotificationBits,
+	AccessTokenScopeWriteNotification: accessTokenScopeWriteNotificationBits,
+	AccessTokenScopeReadOrganization:  accessTokenScopeReadOrganizationBits,
+	AccessTokenScopeWriteOrganization: accessTokenScopeWriteOrganizationBits,
+	AccessTokenScopeReadPackage:       accessTokenScopeReadPackageBits,
+	AccessTokenScopeWritePackage:      accessTokenScopeWritePackageBits,
+	AccessTokenScopeReadIssue:         accessTokenScopeReadIssueBits,
+	AccessTokenScopeWriteIssue:        accessTokenScopeWriteIssueBits,
+	AccessTokenScopeReadRepository:    accessTokenScopeReadRepositoryBits,
+	AccessTokenScopeWriteRepository:   accessTokenScopeWriteRepositoryBits,
+	AccessTokenScopeReadUser:          accessTokenScopeReadUserBits,
+	AccessTokenScopeWriteUser:         accessTokenScopeWriteUserBits,
+}
+
+// readAccessTokenScopes maps a scope category to the read permission scope
+var accessTokenScopes = map[AccessTokenScopeLevel]map[AccessTokenScopeCategory]AccessTokenScope{
+	Read: {
+		AccessTokenScopeCategoryActivityPub:  AccessTokenScopeReadActivityPub,
+		AccessTokenScopeCategoryAdmin:        AccessTokenScopeReadAdmin,
+		AccessTokenScopeCategoryMisc:         AccessTokenScopeReadMisc,
+		AccessTokenScopeCategoryNotification: AccessTokenScopeReadNotification,
+		AccessTokenScopeCategoryOrganization: AccessTokenScopeReadOrganization,
+		AccessTokenScopeCategoryPackage:      AccessTokenScopeReadPackage,
+		AccessTokenScopeCategoryIssue:        AccessTokenScopeReadIssue,
+		AccessTokenScopeCategoryRepository:   AccessTokenScopeReadRepository,
+		AccessTokenScopeCategoryUser:         AccessTokenScopeReadUser,
+	},
+	Write: {
+		AccessTokenScopeCategoryActivityPub:  AccessTokenScopeWriteActivityPub,
+		AccessTokenScopeCategoryAdmin:        AccessTokenScopeWriteAdmin,
+		AccessTokenScopeCategoryMisc:         AccessTokenScopeWriteMisc,
+		AccessTokenScopeCategoryNotification: AccessTokenScopeWriteNotification,
+		AccessTokenScopeCategoryOrganization: AccessTokenScopeWriteOrganization,
+		AccessTokenScopeCategoryPackage:      AccessTokenScopeWritePackage,
+		AccessTokenScopeCategoryIssue:        AccessTokenScopeWriteIssue,
+		AccessTokenScopeCategoryRepository:   AccessTokenScopeWriteRepository,
+		AccessTokenScopeCategoryUser:         AccessTokenScopeWriteUser,
+	},
+}
+
+// GetRequiredScopes gets the specific scopes for a given level and categories
+func GetRequiredScopes(level AccessTokenScopeLevel, scopeCategories ...AccessTokenScopeCategory) []AccessTokenScope {
+	scopes := make([]AccessTokenScope, 0, len(scopeCategories))
+	for _, cat := range scopeCategories {
+		scopes = append(scopes, accessTokenScopes[level][cat])
+	}
+	return scopes
+}
+
+// ContainsCategory checks if a list of categories contains a specific category
+func ContainsCategory(categories []AccessTokenScopeCategory, category AccessTokenScopeCategory) bool {
+	for _, c := range categories {
+		if c == category {
+			return true
+		}
+	}
+	return false
+}
+
+// GetScopeLevelFromAccessMode converts permission access mode to scope level
+func GetScopeLevelFromAccessMode(mode perm.AccessMode) AccessTokenScopeLevel {
+	switch mode {
+	case perm.AccessModeNone:
+		return NoAccess
+	case perm.AccessModeRead:
+		return Read
+	case perm.AccessModeWrite:
+		return Write
+	case perm.AccessModeAdmin:
+		return Write
+	case perm.AccessModeOwner:
+		return Write
+	default:
+		return NoAccess
+	}
+}
+
+// parse the scope string into a bitmap, thus removing possible duplicates.
+func (s AccessTokenScope) parse() (accessTokenScopeBitmap, error) {
+	var bitmap accessTokenScopeBitmap
+
+	// The following is the more performant equivalent of 'for _, v := range strings.Split(remainingScope, ",")' as this is hot code
+	remainingScopes := string(s)
+	for len(remainingScopes) > 0 {
+		i := strings.IndexByte(remainingScopes, ',')
+		var v string
+		if i < 0 {
+			v = remainingScopes
+			remainingScopes = ""
+		} else if i+1 >= len(remainingScopes) {
+			v = remainingScopes[:i]
+			remainingScopes = ""
+		} else {
+			v = remainingScopes[:i]
+			remainingScopes = remainingScopes[i+1:]
+		}
+		singleScope := AccessTokenScope(v)
+		if singleScope == "" || singleScope == "sudo" {
+			continue
+		}
+		if singleScope == AccessTokenScopeAll {
+			bitmap |= accessTokenScopeAllBits
+			continue
+		}
+
+		bits, ok := allAccessTokenScopeBits[singleScope]
+		if !ok {
+			return 0, fmt.Errorf("invalid access token scope: %s", singleScope)
+		}
+		bitmap |= bits
+	}
+
+	return bitmap, nil
+}
+
+// StringSlice returns the AccessTokenScope as a []string
+func (s AccessTokenScope) StringSlice() []string {
+	return strings.Split(string(s), ",")
+}
+
+// Normalize returns a normalized scope string without any duplicates.
+func (s AccessTokenScope) Normalize() (AccessTokenScope, error) {
+	bitmap, err := s.parse()
+	if err != nil {
+		return "", err
+	}
+
+	return bitmap.toScope(), nil
+}
+
+// PublicOnly checks if this token scope is limited to public resources
+func (s AccessTokenScope) PublicOnly() (bool, error) {
+	bitmap, err := s.parse()
+	if err != nil {
+		return false, err
+	}
+
+	return bitmap.hasScope(AccessTokenScopePublicOnly)
+}
+
+// HasScope returns true if the string has the given scope
+func (s AccessTokenScope) HasScope(scopes ...AccessTokenScope) (bool, error) {
+	bitmap, err := s.parse()
+	if err != nil {
+		return false, err
+	}
+
+	for _, s := range scopes {
+		if has, err := bitmap.hasScope(s); !has || err != nil {
+			return has, err
+		}
+	}
+
+	return true, nil
+}
+
+// hasScope returns true if the string has the given scope
+func (bitmap accessTokenScopeBitmap) hasScope(scope AccessTokenScope) (bool, error) {
+	expectedBits, ok := allAccessTokenScopeBits[scope]
+	if !ok {
+		return false, fmt.Errorf("invalid access token scope: %s", scope)
+	}
+
+	return bitmap&expectedBits == expectedBits, nil
+}
+
+// toScope returns a normalized scope string without any duplicates.
+func (bitmap accessTokenScopeBitmap) toScope() AccessTokenScope {
+	var scopes []string
+
+	// iterate over all scopes, and reconstruct the bitmap
+	// if the reconstructed bitmap doesn't change, then the scope is already included
+	var reconstruct accessTokenScopeBitmap
+
+	for _, singleScope := range allAccessTokenScopes {
+		// no need for error checking here, since we know the scope is valid
+		if ok, _ := bitmap.hasScope(singleScope); ok {
+			current := reconstruct | allAccessTokenScopeBits[singleScope]
+			if current == reconstruct {
+				continue
+			}
+
+			reconstruct = current
+			scopes = append(scopes, string(singleScope))
+		}
+	}
+
+	scope := AccessTokenScope(strings.Join(scopes, ","))
+	scope = AccessTokenScope(strings.ReplaceAll(
+		string(scope),
+		"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user",
+		"all",
+	))
+	return scope
+}
diff --git a/models/auth/access_token_scope_test.go b/models/auth/access_token_scope_test.go
new file mode 100644
index 0000000..d11c5e6
--- /dev/null
+++ b/models/auth/access_token_scope_test.go
@@ -0,0 +1,90 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type scopeTestNormalize struct {
+	in  AccessTokenScope
+	out AccessTokenScope
+	err error
+}
+
+func TestAccessTokenScope_Normalize(t *testing.T) {
+	tests := []scopeTestNormalize{
+		{"", "", nil},
+		{"write:misc,write:notification,read:package,write:notification,public-only", "public-only,write:misc,write:notification,read:package", nil},
+		{"all,sudo", "all", nil},
+		{"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user", "all", nil},
+		{"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user,public-only", "public-only,all", nil},
+	}
+
+	for _, scope := range []string{"activitypub", "admin", "misc", "notification", "organization", "package", "issue", "repository", "user"} {
+		tests = append(tests,
+			scopeTestNormalize{AccessTokenScope(fmt.Sprintf("read:%s", scope)), AccessTokenScope(fmt.Sprintf("read:%s", scope)), nil},
+			scopeTestNormalize{AccessTokenScope(fmt.Sprintf("write:%s", scope)), AccessTokenScope(fmt.Sprintf("write:%s", scope)), nil},
+			scopeTestNormalize{AccessTokenScope(fmt.Sprintf("write:%[1]s,read:%[1]s", scope)), AccessTokenScope(fmt.Sprintf("write:%s", scope)), nil},
+			scopeTestNormalize{AccessTokenScope(fmt.Sprintf("read:%[1]s,write:%[1]s", scope)), AccessTokenScope(fmt.Sprintf("write:%s", scope)), nil},
+			scopeTestNormalize{AccessTokenScope(fmt.Sprintf("read:%[1]s,write:%[1]s,write:%[1]s", scope)), AccessTokenScope(fmt.Sprintf("write:%s", scope)), nil},
+		)
+	}
+
+	for _, test := range tests {
+		t.Run(string(test.in), func(t *testing.T) {
+			scope, err := test.in.Normalize()
+			assert.Equal(t, test.out, scope)
+			assert.Equal(t, test.err, err)
+		})
+	}
+}
+
+type scopeTestHasScope struct {
+	in    AccessTokenScope
+	scope AccessTokenScope
+	out   bool
+	err   error
+}
+
+func TestAccessTokenScope_HasScope(t *testing.T) {
+	tests := []scopeTestHasScope{
+		{"read:admin", "write:package", false, nil},
+		{"all", "write:package", true, nil},
+		{"write:package", "all", false, nil},
+		{"public-only", "read:issue", false, nil},
+	}
+
+	for _, scope := range []string{"activitypub", "admin", "misc", "notification", "organization", "package", "issue", "repository", "user"} {
+		tests = append(tests,
+			scopeTestHasScope{
+				AccessTokenScope(fmt.Sprintf("read:%s", scope)),
+				AccessTokenScope(fmt.Sprintf("read:%s", scope)), true, nil,
+			},
+			scopeTestHasScope{
+				AccessTokenScope(fmt.Sprintf("write:%s", scope)),
+				AccessTokenScope(fmt.Sprintf("write:%s", scope)), true, nil,
+			},
+			scopeTestHasScope{
+				AccessTokenScope(fmt.Sprintf("write:%s", scope)),
+				AccessTokenScope(fmt.Sprintf("read:%s", scope)), true, nil,
+			},
+			scopeTestHasScope{
+				AccessTokenScope(fmt.Sprintf("read:%s", scope)),
+				AccessTokenScope(fmt.Sprintf("write:%s", scope)), false, nil,
+			},
+		)
+	}
+
+	for _, test := range tests {
+		t.Run(string(test.in), func(t *testing.T) {
+			hasScope, err := test.in.HasScope(test.scope)
+			assert.Equal(t, test.out, hasScope)
+			assert.Equal(t, test.err, err)
+		})
+	}
+}
diff --git a/models/auth/access_token_test.go b/models/auth/access_token_test.go
new file mode 100644
index 0000000..e6ea487
--- /dev/null
+++ b/models/auth/access_token_test.go
@@ -0,0 +1,133 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewAccessToken(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token := &auth_model.AccessToken{
+		UID:  3,
+		Name: "Token C",
+	}
+	require.NoError(t, auth_model.NewAccessToken(db.DefaultContext, token))
+	unittest.AssertExistsAndLoadBean(t, token)
+
+	invalidToken := &auth_model.AccessToken{
+		ID:   token.ID, // duplicate
+		UID:  2,
+		Name: "Token F",
+	}
+	require.Error(t, auth_model.NewAccessToken(db.DefaultContext, invalidToken))
+}
+
+func TestAccessTokenByNameExists(t *testing.T) {
+	name := "Token Gitea"
+
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token := &auth_model.AccessToken{
+		UID:  3,
+		Name: name,
+	}
+
+	// Check to make sure it doesn't exists already
+	exist, err := auth_model.AccessTokenByNameExists(db.DefaultContext, token)
+	require.NoError(t, err)
+	assert.False(t, exist)
+
+	// Save it to the database
+	require.NoError(t, auth_model.NewAccessToken(db.DefaultContext, token))
+	unittest.AssertExistsAndLoadBean(t, token)
+
+	// This token must be found by name in the DB now
+	exist, err = auth_model.AccessTokenByNameExists(db.DefaultContext, token)
+	require.NoError(t, err)
+	assert.True(t, exist)
+
+	user4Token := &auth_model.AccessToken{
+		UID:  4,
+		Name: name,
+	}
+
+	// Name matches but different user ID, this shouldn't exists in the
+	// database
+	exist, err = auth_model.AccessTokenByNameExists(db.DefaultContext, user4Token)
+	require.NoError(t, err)
+	assert.False(t, exist)
+}
+
+func TestGetAccessTokenBySHA(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token, err := auth_model.GetAccessTokenBySHA(db.DefaultContext, "d2c6c1ba3890b309189a8e618c72a162e4efbf36")
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), token.UID)
+	assert.Equal(t, "Token A", token.Name)
+	assert.Equal(t, "2b3668e11cb82d3af8c6e4524fc7841297668f5008d1626f0ad3417e9fa39af84c268248b78c481daa7e5dc437784003494f", token.TokenHash)
+	assert.Equal(t, "e4efbf36", token.TokenLastEight)
+
+	_, err = auth_model.GetAccessTokenBySHA(db.DefaultContext, "notahash")
+	require.Error(t, err)
+	assert.True(t, auth_model.IsErrAccessTokenNotExist(err))
+
+	_, err = auth_model.GetAccessTokenBySHA(db.DefaultContext, "")
+	require.Error(t, err)
+	assert.True(t, auth_model.IsErrAccessTokenEmpty(err))
+}
+
+func TestListAccessTokens(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	tokens, err := db.Find[auth_model.AccessToken](db.DefaultContext, auth_model.ListAccessTokensOptions{UserID: 1})
+	require.NoError(t, err)
+	if assert.Len(t, tokens, 2) {
+		assert.Equal(t, int64(1), tokens[0].UID)
+		assert.Equal(t, int64(1), tokens[1].UID)
+		assert.Contains(t, []string{tokens[0].Name, tokens[1].Name}, "Token A")
+		assert.Contains(t, []string{tokens[0].Name, tokens[1].Name}, "Token B")
+	}
+
+	tokens, err = db.Find[auth_model.AccessToken](db.DefaultContext, auth_model.ListAccessTokensOptions{UserID: 2})
+	require.NoError(t, err)
+	if assert.Len(t, tokens, 1) {
+		assert.Equal(t, int64(2), tokens[0].UID)
+		assert.Equal(t, "Token A", tokens[0].Name)
+	}
+
+	tokens, err = db.Find[auth_model.AccessToken](db.DefaultContext, auth_model.ListAccessTokensOptions{UserID: 100})
+	require.NoError(t, err)
+	assert.Empty(t, tokens)
+}
+
+func TestUpdateAccessToken(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	token, err := auth_model.GetAccessTokenBySHA(db.DefaultContext, "4c6f36e6cf498e2a448662f915d932c09c5a146c")
+	require.NoError(t, err)
+	token.Name = "Token Z"
+
+	require.NoError(t, auth_model.UpdateAccessToken(db.DefaultContext, token))
+	unittest.AssertExistsAndLoadBean(t, token)
+}
+
+func TestDeleteAccessTokenByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	token, err := auth_model.GetAccessTokenBySHA(db.DefaultContext, "4c6f36e6cf498e2a448662f915d932c09c5a146c")
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), token.UID)
+
+	require.NoError(t, auth_model.DeleteAccessTokenByID(db.DefaultContext, token.ID, 1))
+	unittest.AssertNotExistsBean(t, token)
+
+	err = auth_model.DeleteAccessTokenByID(db.DefaultContext, 100, 100)
+	require.Error(t, err)
+	assert.True(t, auth_model.IsErrAccessTokenNotExist(err))
+}
diff --git a/models/auth/auth_token.go b/models/auth/auth_token.go
new file mode 100644
index 0000000..c64af3e
--- /dev/null
+++ b/models/auth/auth_token.go
@@ -0,0 +1,116 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+type AuthorizationPurpose string
+
+var (
+	// Used to store long term authorization tokens.
+	LongTermAuthorization AuthorizationPurpose = "long_term_authorization"
+
+	// Used to activate a user account.
+	UserActivation AuthorizationPurpose = "user_activation"
+
+	// Used to reset the password.
+	PasswordReset AuthorizationPurpose = "password_reset"
+)
+
+// Used to activate the specified email address for a user.
+func EmailActivation(email string) AuthorizationPurpose {
+	return AuthorizationPurpose("email_activation:" + email)
+}
+
+// AuthorizationToken represents a authorization token to a user.
+type AuthorizationToken struct {
+	ID              int64  `xorm:"pk autoincr"`
+	UID             int64  `xorm:"INDEX"`
+	LookupKey       string `xorm:"INDEX UNIQUE"`
+	HashedValidator string
+	Purpose         AuthorizationPurpose `xorm:"NOT NULL DEFAULT 'long_term_authorization'"`
+	Expiry          timeutil.TimeStamp
+}
+
+// TableName provides the real table name.
+func (AuthorizationToken) TableName() string {
+	return "forgejo_auth_token"
+}
+
+func init() {
+	db.RegisterModel(new(AuthorizationToken))
+}
+
+// IsExpired returns if the authorization token is expired.
+func (authToken *AuthorizationToken) IsExpired() bool {
+	return authToken.Expiry.AsLocalTime().Before(time.Now())
+}
+
+// GenerateAuthToken generates a new authentication token for the given user.
+// It returns the lookup key and validator values that should be passed to the
+// user via a long-term cookie.
+func GenerateAuthToken(ctx context.Context, userID int64, expiry timeutil.TimeStamp, purpose AuthorizationPurpose) (lookupKey, validator string, err error) {
+	// Request 64 random bytes. The first 32 bytes will be used for the lookupKey
+	// and the other 32 bytes will be used for the validator.
+	rBytes, err := util.CryptoRandomBytes(64)
+	if err != nil {
+		return "", "", err
+	}
+	hexEncoded := hex.EncodeToString(rBytes)
+	validator, lookupKey = hexEncoded[64:], hexEncoded[:64]
+
+	_, err = db.GetEngine(ctx).Insert(&AuthorizationToken{
+		UID:             userID,
+		Expiry:          expiry,
+		LookupKey:       lookupKey,
+		HashedValidator: HashValidator(rBytes[32:]),
+		Purpose:         purpose,
+	})
+	return lookupKey, validator, err
+}
+
+// FindAuthToken will find a authorization token via the lookup key.
+func FindAuthToken(ctx context.Context, lookupKey string, purpose AuthorizationPurpose) (*AuthorizationToken, error) {
+	var authToken AuthorizationToken
+	has, err := db.GetEngine(ctx).Where("lookup_key = ? AND purpose = ?", lookupKey, purpose).Get(&authToken)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("lookup key %q: %w", lookupKey, util.ErrNotExist)
+	}
+	return &authToken, nil
+}
+
+// DeleteAuthToken will delete the authorization token.
+func DeleteAuthToken(ctx context.Context, authToken *AuthorizationToken) error {
+	_, err := db.DeleteByBean(ctx, authToken)
+	return err
+}
+
+// DeleteAuthTokenByUser will delete all authorization tokens for the user.
+func DeleteAuthTokenByUser(ctx context.Context, userID int64) error {
+	if userID == 0 {
+		return nil
+	}
+
+	_, err := db.DeleteByBean(ctx, &AuthorizationToken{UID: userID})
+	return err
+}
+
+// HashValidator will return a hexified hashed version of the validator.
+func HashValidator(validator []byte) string {
+	h := sha256.New()
+	h.Write(validator)
+	return hex.EncodeToString(h.Sum(nil))
+}
diff --git a/models/auth/main_test.go b/models/auth/main_test.go
new file mode 100644
index 0000000..d772ea6
--- /dev/null
+++ b/models/auth/main_test.go
@@ -0,0 +1,20 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/auth"
+	_ "code.gitea.io/gitea/models/perm/access"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/auth/oauth2.go b/models/auth/oauth2.go
new file mode 100644
index 0000000..9a78544
--- /dev/null
+++ b/models/auth/oauth2.go
@@ -0,0 +1,678 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/base32"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"net"
+	"net/url"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	uuid "github.com/google/uuid"
+	"golang.org/x/crypto/bcrypt"
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// OAuth2Application represents an OAuth2 client (RFC 6749)
+type OAuth2Application struct {
+	ID           int64 `xorm:"pk autoincr"`
+	UID          int64 `xorm:"INDEX"`
+	Name         string
+	ClientID     string `xorm:"unique"`
+	ClientSecret string
+	// OAuth defines both Confidential and Public client types
+	// https://datatracker.ietf.org/doc/html/rfc6749#section-2.1
+	// "Authorization servers MUST record the client type in the client registration details"
+	// https://datatracker.ietf.org/doc/html/rfc8252#section-8.4
+	ConfidentialClient bool               `xorm:"NOT NULL DEFAULT TRUE"`
+	RedirectURIs       []string           `xorm:"redirect_uris JSON TEXT"`
+	CreatedUnix        timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix        timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(OAuth2Application))
+	db.RegisterModel(new(OAuth2AuthorizationCode))
+	db.RegisterModel(new(OAuth2Grant))
+}
+
+type BuiltinOAuth2Application struct {
+	ConfigName   string
+	DisplayName  string
+	RedirectURIs []string
+}
+
+func BuiltinApplications() map[string]*BuiltinOAuth2Application {
+	m := make(map[string]*BuiltinOAuth2Application)
+	m["a4792ccc-144e-407e-86c9-5e7d8d9c3269"] = &BuiltinOAuth2Application{
+		ConfigName:   "git-credential-oauth",
+		DisplayName:  "git-credential-oauth",
+		RedirectURIs: []string{"http://127.0.0.1", "https://127.0.0.1"},
+	}
+	m["e90ee53c-94e2-48ac-9358-a874fb9e0662"] = &BuiltinOAuth2Application{
+		ConfigName:   "git-credential-manager",
+		DisplayName:  "Git Credential Manager",
+		RedirectURIs: []string{"http://127.0.0.1", "https://127.0.0.1"},
+	}
+	m["d57cb8c4-630c-4168-8324-ec79935e18d4"] = &BuiltinOAuth2Application{
+		ConfigName:   "tea",
+		DisplayName:  "tea",
+		RedirectURIs: []string{"http://127.0.0.1", "https://127.0.0.1"},
+	}
+	return m
+}
+
+func BuiltinApplicationsClientIDs() (clientIDs []string) {
+	for clientID := range BuiltinApplications() {
+		clientIDs = append(clientIDs, clientID)
+	}
+	return clientIDs
+}
+
+func Init(ctx context.Context) error {
+	builtinApps := BuiltinApplications()
+	var builtinAllClientIDs []string
+	for clientID := range builtinApps {
+		builtinAllClientIDs = append(builtinAllClientIDs, clientID)
+	}
+
+	var registeredApps []*OAuth2Application
+	if err := db.GetEngine(ctx).In("client_id", builtinAllClientIDs).Find(&registeredApps); err != nil {
+		return err
+	}
+
+	clientIDsToAdd := container.Set[string]{}
+	for _, configName := range setting.OAuth2.DefaultApplications {
+		found := false
+		for clientID, builtinApp := range builtinApps {
+			if builtinApp.ConfigName == configName {
+				clientIDsToAdd.Add(clientID) // add all user-configured apps to the "add" list
+				found = true
+			}
+		}
+		if !found {
+			return fmt.Errorf("unknown oauth2 application: %q", configName)
+		}
+	}
+	clientIDsToDelete := container.Set[string]{}
+	for _, app := range registeredApps {
+		if !clientIDsToAdd.Contains(app.ClientID) {
+			clientIDsToDelete.Add(app.ClientID) // if a registered app is not in the "add" list, it should be deleted
+		}
+	}
+	for _, app := range registeredApps {
+		clientIDsToAdd.Remove(app.ClientID) // no need to re-add existing (registered) apps, so remove them from the set
+	}
+
+	for _, app := range registeredApps {
+		if clientIDsToDelete.Contains(app.ClientID) {
+			if err := deleteOAuth2Application(ctx, app.ID, 0); err != nil {
+				return err
+			}
+		}
+	}
+	for clientID := range clientIDsToAdd {
+		builtinApp := builtinApps[clientID]
+		if err := db.Insert(ctx, &OAuth2Application{
+			Name:         builtinApp.DisplayName,
+			ClientID:     clientID,
+			RedirectURIs: builtinApp.RedirectURIs,
+		}); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// TableName sets the table name to `oauth2_application`
+func (app *OAuth2Application) TableName() string {
+	return "oauth2_application"
+}
+
+// ContainsRedirectURI checks if redirectURI is allowed for app
+func (app *OAuth2Application) ContainsRedirectURI(redirectURI string) bool {
+	// OAuth2 requires the redirect URI to be an exact match, no dynamic parts are allowed.
+	// https://stackoverflow.com/questions/55524480/should-dynamic-query-parameters-be-present-in-the-redirection-uri-for-an-oauth2
+	// https://www.rfc-editor.org/rfc/rfc6819#section-5.2.3.3
+	// https://openid.net/specs/openid-connect-core-1_0.html#AuthRequest
+	// https://datatracker.ietf.org/doc/html/draft-ietf-oauth-security-topics-12#section-3.1
+	contains := func(s string) bool {
+		s = strings.TrimSuffix(strings.ToLower(s), "/")
+		for _, u := range app.RedirectURIs {
+			if strings.TrimSuffix(strings.ToLower(u), "/") == s {
+				return true
+			}
+		}
+		return false
+	}
+	if !app.ConfidentialClient {
+		uri, err := url.Parse(redirectURI)
+		// ignore port for http loopback uris following https://datatracker.ietf.org/doc/html/rfc8252#section-7.3
+		if err == nil && uri.Scheme == "http" && uri.Port() != "" {
+			ip := net.ParseIP(uri.Hostname())
+			if ip != nil && ip.IsLoopback() {
+				// strip port
+				uri.Host = uri.Hostname()
+				if contains(uri.String()) {
+					return true
+				}
+			}
+		}
+	}
+	return contains(redirectURI)
+}
+
+// Base32 characters, but lowercased.
+const lowerBase32Chars = "abcdefghijklmnopqrstuvwxyz234567"
+
+// base32 encoder that uses lowered characters without padding.
+var base32Lower = base32.NewEncoding(lowerBase32Chars).WithPadding(base32.NoPadding)
+
+// GenerateClientSecret will generate the client secret and returns the plaintext and saves the hash at the database
+func (app *OAuth2Application) GenerateClientSecret(ctx context.Context) (string, error) {
+	rBytes, err := util.CryptoRandomBytes(32)
+	if err != nil {
+		return "", err
+	}
+	// Add a prefix to the base32, this is in order to make it easier
+	// for code scanners to grab sensitive tokens.
+	clientSecret := "gto_" + base32Lower.EncodeToString(rBytes)
+
+	hashedSecret, err := bcrypt.GenerateFromPassword([]byte(clientSecret), bcrypt.DefaultCost)
+	if err != nil {
+		return "", err
+	}
+	app.ClientSecret = string(hashedSecret)
+	if _, err := db.GetEngine(ctx).ID(app.ID).Cols("client_secret").Update(app); err != nil {
+		return "", err
+	}
+	return clientSecret, nil
+}
+
+// ValidateClientSecret validates the given secret by the hash saved in database
+func (app *OAuth2Application) ValidateClientSecret(secret []byte) bool {
+	return bcrypt.CompareHashAndPassword([]byte(app.ClientSecret), secret) == nil
+}
+
+// GetGrantByUserID returns a OAuth2Grant by its user and application ID
+func (app *OAuth2Application) GetGrantByUserID(ctx context.Context, userID int64) (grant *OAuth2Grant, err error) {
+	grant = new(OAuth2Grant)
+	if has, err := db.GetEngine(ctx).Where("user_id = ? AND application_id = ?", userID, app.ID).Get(grant); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	return grant, nil
+}
+
+// CreateGrant generates a grant for an user
+func (app *OAuth2Application) CreateGrant(ctx context.Context, userID int64, scope string) (*OAuth2Grant, error) {
+	grant := &OAuth2Grant{
+		ApplicationID: app.ID,
+		UserID:        userID,
+		Scope:         scope,
+	}
+	err := db.Insert(ctx, grant)
+	if err != nil {
+		return nil, err
+	}
+	return grant, nil
+}
+
+// GetOAuth2ApplicationByClientID returns the oauth2 application with the given client_id. Returns an error if not found.
+func GetOAuth2ApplicationByClientID(ctx context.Context, clientID string) (app *OAuth2Application, err error) {
+	app = new(OAuth2Application)
+	has, err := db.GetEngine(ctx).Where("client_id = ?", clientID).Get(app)
+	if !has {
+		return nil, ErrOAuthClientIDInvalid{ClientID: clientID}
+	}
+	return app, err
+}
+
+// GetOAuth2ApplicationByID returns the oauth2 application with the given id. Returns an error if not found.
+func GetOAuth2ApplicationByID(ctx context.Context, id int64) (app *OAuth2Application, err error) {
+	app = new(OAuth2Application)
+	has, err := db.GetEngine(ctx).ID(id).Get(app)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrOAuthApplicationNotFound{ID: id}
+	}
+	return app, nil
+}
+
+// CreateOAuth2ApplicationOptions holds options to create an oauth2 application
+type CreateOAuth2ApplicationOptions struct {
+	Name               string
+	UserID             int64
+	ConfidentialClient bool
+	RedirectURIs       []string
+}
+
+// CreateOAuth2Application inserts a new oauth2 application
+func CreateOAuth2Application(ctx context.Context, opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) {
+	clientID := uuid.New().String()
+	app := &OAuth2Application{
+		UID:                opts.UserID,
+		Name:               opts.Name,
+		ClientID:           clientID,
+		RedirectURIs:       opts.RedirectURIs,
+		ConfidentialClient: opts.ConfidentialClient,
+	}
+	if err := db.Insert(ctx, app); err != nil {
+		return nil, err
+	}
+	return app, nil
+}
+
+// UpdateOAuth2ApplicationOptions holds options to update an oauth2 application
+type UpdateOAuth2ApplicationOptions struct {
+	ID                 int64
+	Name               string
+	UserID             int64
+	ConfidentialClient bool
+	RedirectURIs       []string
+}
+
+// UpdateOAuth2Application updates an oauth2 application
+func UpdateOAuth2Application(ctx context.Context, opts UpdateOAuth2ApplicationOptions) (*OAuth2Application, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	app, err := GetOAuth2ApplicationByID(ctx, opts.ID)
+	if err != nil {
+		return nil, err
+	}
+	if app.UID != opts.UserID {
+		return nil, errors.New("UID mismatch")
+	}
+	builtinApps := BuiltinApplications()
+	if _, builtin := builtinApps[app.ClientID]; builtin {
+		return nil, fmt.Errorf("failed to edit OAuth2 application: application is locked: %s", app.ClientID)
+	}
+
+	app.Name = opts.Name
+	app.RedirectURIs = opts.RedirectURIs
+	app.ConfidentialClient = opts.ConfidentialClient
+
+	if err = updateOAuth2Application(ctx, app); err != nil {
+		return nil, err
+	}
+	app.ClientSecret = ""
+
+	return app, committer.Commit()
+}
+
+func updateOAuth2Application(ctx context.Context, app *OAuth2Application) error {
+	if _, err := db.GetEngine(ctx).ID(app.ID).UseBool("confidential_client").Update(app); err != nil {
+		return err
+	}
+	return nil
+}
+
+func deleteOAuth2Application(ctx context.Context, id, userid int64) error {
+	sess := db.GetEngine(ctx)
+	// the userid could be 0 if the app is instance-wide
+	if deleted, err := sess.Where(builder.Eq{"id": id, "uid": userid}).Delete(&OAuth2Application{}); err != nil {
+		return err
+	} else if deleted == 0 {
+		return ErrOAuthApplicationNotFound{ID: id}
+	}
+	codes := make([]*OAuth2AuthorizationCode, 0)
+	// delete correlating auth codes
+	if err := sess.Join("INNER", "oauth2_grant",
+		"oauth2_authorization_code.grant_id = oauth2_grant.id AND oauth2_grant.application_id = ?", id).Find(&codes); err != nil {
+		return err
+	}
+	codeIDs := make([]int64, 0, len(codes))
+	for _, grant := range codes {
+		codeIDs = append(codeIDs, grant.ID)
+	}
+
+	if _, err := sess.In("id", codeIDs).Delete(new(OAuth2AuthorizationCode)); err != nil {
+		return err
+	}
+
+	if _, err := sess.Where("application_id = ?", id).Delete(new(OAuth2Grant)); err != nil {
+		return err
+	}
+	return nil
+}
+
+// DeleteOAuth2Application deletes the application with the given id and the grants and auth codes related to it. It checks if the userid was the creator of the app.
+func DeleteOAuth2Application(ctx context.Context, id, userid int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	app, err := GetOAuth2ApplicationByID(ctx, id)
+	if err != nil {
+		return err
+	}
+	builtinApps := BuiltinApplications()
+	if _, builtin := builtinApps[app.ClientID]; builtin {
+		return fmt.Errorf("failed to delete OAuth2 application: application is locked: %s", app.ClientID)
+	}
+	if err := deleteOAuth2Application(ctx, id, userid); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+//////////////////////////////////////////////////////
+
+// OAuth2AuthorizationCode is a code to obtain an access token in combination with the client secret once. It has a limited lifetime.
+type OAuth2AuthorizationCode struct {
+	ID                  int64        `xorm:"pk autoincr"`
+	Grant               *OAuth2Grant `xorm:"-"`
+	GrantID             int64
+	Code                string `xorm:"INDEX unique"`
+	CodeChallenge       string
+	CodeChallengeMethod string
+	RedirectURI         string
+	ValidUntil          timeutil.TimeStamp `xorm:"index"`
+}
+
+// TableName sets the table name to `oauth2_authorization_code`
+func (code *OAuth2AuthorizationCode) TableName() string {
+	return "oauth2_authorization_code"
+}
+
+// GenerateRedirectURI generates a redirect URI for a successful authorization request. State will be used if not empty.
+func (code *OAuth2AuthorizationCode) GenerateRedirectURI(state string) (*url.URL, error) {
+	redirect, err := url.Parse(code.RedirectURI)
+	if err != nil {
+		return nil, err
+	}
+	q := redirect.Query()
+	if state != "" {
+		q.Set("state", state)
+	}
+	q.Set("code", code.Code)
+	redirect.RawQuery = q.Encode()
+	return redirect, err
+}
+
+// Invalidate deletes the auth code from the database to invalidate this code
+func (code *OAuth2AuthorizationCode) Invalidate(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).ID(code.ID).NoAutoCondition().Delete(code)
+	return err
+}
+
+// ValidateCodeChallenge validates the given verifier against the saved code challenge. This is part of the PKCE implementation.
+func (code *OAuth2AuthorizationCode) ValidateCodeChallenge(verifier string) bool {
+	switch code.CodeChallengeMethod {
+	case "S256":
+		// base64url(SHA256(verifier)) see https://tools.ietf.org/html/rfc7636#section-4.6
+		h := sha256.Sum256([]byte(verifier))
+		hashedVerifier := base64.RawURLEncoding.EncodeToString(h[:])
+		return hashedVerifier == code.CodeChallenge
+	case "plain":
+		return verifier == code.CodeChallenge
+	case "":
+		return true
+	default:
+		// unsupported method -> return false
+		return false
+	}
+}
+
+// GetOAuth2AuthorizationByCode returns an authorization by its code
+func GetOAuth2AuthorizationByCode(ctx context.Context, code string) (auth *OAuth2AuthorizationCode, err error) {
+	auth = new(OAuth2AuthorizationCode)
+	if has, err := db.GetEngine(ctx).Where("code = ?", code).Get(auth); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	auth.Grant = new(OAuth2Grant)
+	if has, err := db.GetEngine(ctx).ID(auth.GrantID).Get(auth.Grant); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	return auth, nil
+}
+
+//////////////////////////////////////////////////////
+
+// OAuth2Grant represents the permission of an user for a specific application to access resources
+type OAuth2Grant struct {
+	ID            int64              `xorm:"pk autoincr"`
+	UserID        int64              `xorm:"INDEX unique(user_application)"`
+	Application   *OAuth2Application `xorm:"-"`
+	ApplicationID int64              `xorm:"INDEX unique(user_application)"`
+	Counter       int64              `xorm:"NOT NULL DEFAULT 1"`
+	Scope         string             `xorm:"TEXT"`
+	Nonce         string             `xorm:"TEXT"`
+	CreatedUnix   timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix   timeutil.TimeStamp `xorm:"updated"`
+}
+
+// TableName sets the table name to `oauth2_grant`
+func (grant *OAuth2Grant) TableName() string {
+	return "oauth2_grant"
+}
+
+// GenerateNewAuthorizationCode generates a new authorization code for a grant and saves it to the database
+func (grant *OAuth2Grant) GenerateNewAuthorizationCode(ctx context.Context, redirectURI, codeChallenge, codeChallengeMethod string) (code *OAuth2AuthorizationCode, err error) {
+	rBytes, err := util.CryptoRandomBytes(32)
+	if err != nil {
+		return &OAuth2AuthorizationCode{}, err
+	}
+	// Add a prefix to the base32, this is in order to make it easier
+	// for code scanners to grab sensitive tokens.
+	codeSecret := "gta_" + base32Lower.EncodeToString(rBytes)
+
+	code = &OAuth2AuthorizationCode{
+		Grant:               grant,
+		GrantID:             grant.ID,
+		RedirectURI:         redirectURI,
+		Code:                codeSecret,
+		CodeChallenge:       codeChallenge,
+		CodeChallengeMethod: codeChallengeMethod,
+	}
+	if err := db.Insert(ctx, code); err != nil {
+		return nil, err
+	}
+	return code, nil
+}
+
+// IncreaseCounter increases the counter and updates the grant
+func (grant *OAuth2Grant) IncreaseCounter(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).ID(grant.ID).Incr("counter").Update(new(OAuth2Grant))
+	if err != nil {
+		return err
+	}
+	updatedGrant, err := GetOAuth2GrantByID(ctx, grant.ID)
+	if err != nil {
+		return err
+	}
+	grant.Counter = updatedGrant.Counter
+	return nil
+}
+
+// ScopeContains returns true if the grant scope contains the specified scope
+func (grant *OAuth2Grant) ScopeContains(scope string) bool {
+	for _, currentScope := range strings.Split(grant.Scope, " ") {
+		if scope == currentScope {
+			return true
+		}
+	}
+	return false
+}
+
+// SetNonce updates the current nonce value of a grant
+func (grant *OAuth2Grant) SetNonce(ctx context.Context, nonce string) error {
+	grant.Nonce = nonce
+	_, err := db.GetEngine(ctx).ID(grant.ID).Cols("nonce").Update(grant)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// GetOAuth2GrantByID returns the grant with the given ID
+func GetOAuth2GrantByID(ctx context.Context, id int64) (grant *OAuth2Grant, err error) {
+	grant = new(OAuth2Grant)
+	if has, err := db.GetEngine(ctx).ID(id).Get(grant); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	return grant, err
+}
+
+// GetOAuth2GrantsByUserID lists all grants of a certain user
+func GetOAuth2GrantsByUserID(ctx context.Context, uid int64) ([]*OAuth2Grant, error) {
+	type joinedOAuth2Grant struct {
+		Grant       *OAuth2Grant       `xorm:"extends"`
+		Application *OAuth2Application `xorm:"extends"`
+	}
+	var results *xorm.Rows
+	var err error
+	if results, err = db.GetEngine(ctx).
+		Table("oauth2_grant").
+		Where("user_id = ?", uid).
+		Join("INNER", "oauth2_application", "application_id = oauth2_application.id").
+		Rows(new(joinedOAuth2Grant)); err != nil {
+		return nil, err
+	}
+	defer results.Close()
+	grants := make([]*OAuth2Grant, 0)
+	for results.Next() {
+		joinedGrant := new(joinedOAuth2Grant)
+		if err := results.Scan(joinedGrant); err != nil {
+			return nil, err
+		}
+		joinedGrant.Grant.Application = joinedGrant.Application
+		grants = append(grants, joinedGrant.Grant)
+	}
+	return grants, nil
+}
+
+// RevokeOAuth2Grant deletes the grant with grantID and userID
+func RevokeOAuth2Grant(ctx context.Context, grantID, userID int64) error {
+	_, err := db.GetEngine(ctx).Where(builder.Eq{"id": grantID, "user_id": userID}).Delete(&OAuth2Grant{})
+	return err
+}
+
+// ErrOAuthClientIDInvalid will be thrown if client id cannot be found
+type ErrOAuthClientIDInvalid struct {
+	ClientID string
+}
+
+// IsErrOauthClientIDInvalid checks if an error is a ErrOAuthClientIDInvalid.
+func IsErrOauthClientIDInvalid(err error) bool {
+	_, ok := err.(ErrOAuthClientIDInvalid)
+	return ok
+}
+
+// Error returns the error message
+func (err ErrOAuthClientIDInvalid) Error() string {
+	return fmt.Sprintf("Client ID invalid [Client ID: %s]", err.ClientID)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrOAuthClientIDInvalid) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrOAuthApplicationNotFound will be thrown if id cannot be found
+type ErrOAuthApplicationNotFound struct {
+	ID int64
+}
+
+// IsErrOAuthApplicationNotFound checks if an error is a ErrReviewNotExist.
+func IsErrOAuthApplicationNotFound(err error) bool {
+	_, ok := err.(ErrOAuthApplicationNotFound)
+	return ok
+}
+
+// Error returns the error message
+func (err ErrOAuthApplicationNotFound) Error() string {
+	return fmt.Sprintf("OAuth application not found [ID: %d]", err.ID)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrOAuthApplicationNotFound) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// GetActiveOAuth2SourceByName returns a OAuth2 AuthSource based on the given name
+func GetActiveOAuth2SourceByName(ctx context.Context, name string) (*Source, error) {
+	authSource := new(Source)
+	has, err := db.GetEngine(ctx).Where("name = ? and type = ? and is_active = ?", name, OAuth2, true).Get(authSource)
+	if err != nil {
+		return nil, err
+	}
+
+	if !has {
+		return nil, fmt.Errorf("oauth2 source not found, name: %q", name)
+	}
+
+	return authSource, nil
+}
+
+func DeleteOAuth2RelictsByUserID(ctx context.Context, userID int64) error {
+	deleteCond := builder.Select("id").From("oauth2_grant").Where(builder.Eq{"oauth2_grant.user_id": userID})
+
+	if _, err := db.GetEngine(ctx).In("grant_id", deleteCond).
+		Delete(&OAuth2AuthorizationCode{}); err != nil {
+		return err
+	}
+
+	if err := db.DeleteBeans(ctx,
+		&OAuth2Application{UID: userID},
+		&OAuth2Grant{UserID: userID},
+	); err != nil {
+		return fmt.Errorf("DeleteBeans: %w", err)
+	}
+
+	return nil
+}
+
+// CountOrphanedOAuth2Applications returns the amount of orphaned OAuth2 applications.
+func CountOrphanedOAuth2Applications(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).
+		Table("`oauth2_application`").
+		Join("LEFT", "`user`", "`oauth2_application`.`uid` = `user`.`id`").
+		Where(builder.IsNull{"`user`.id"}).
+		Where(builder.Neq{"uid": 0}). // exclude instance-wide admin applications
+		Where(builder.NotIn("`oauth2_application`.`client_id`", BuiltinApplicationsClientIDs())).
+		Select("COUNT(`oauth2_application`.`id`)").
+		Count()
+}
+
+// DeleteOrphanedOAuth2Applications deletes orphaned OAuth2 applications.
+func DeleteOrphanedOAuth2Applications(ctx context.Context) (int64, error) {
+	subQuery := builder.Select("`oauth2_application`.id").
+		From("`oauth2_application`").
+		Join("LEFT", "`user`", "`oauth2_application`.`uid` = `user`.`id`").
+		Where(builder.IsNull{"`user`.id"}).
+		Where(builder.Neq{"uid": 0}). // exclude instance-wide admin applications
+		Where(builder.NotIn("`oauth2_application`.`client_id`", BuiltinApplicationsClientIDs()))
+
+	b := builder.Delete(builder.In("id", subQuery)).From("`oauth2_application`")
+	_, err := db.GetEngine(ctx).Exec(b)
+	return -1, err
+}
diff --git a/models/auth/oauth2_list.go b/models/auth/oauth2_list.go
new file mode 100644
index 0000000..c55f10b
--- /dev/null
+++ b/models/auth/oauth2_list.go
@@ -0,0 +1,32 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+)
+
+type FindOAuth2ApplicationsOptions struct {
+	db.ListOptions
+	// OwnerID is the user id or org id of the owner of the application
+	OwnerID int64
+	// find global applications, if true, then OwnerID will be igonred
+	IsGlobal bool
+}
+
+func (opts FindOAuth2ApplicationsOptions) ToConds() builder.Cond {
+	conds := builder.NewCond()
+	if opts.IsGlobal {
+		conds = conds.And(builder.Eq{"uid": 0})
+	} else if opts.OwnerID != 0 {
+		conds = conds.And(builder.Eq{"uid": opts.OwnerID})
+	}
+	return conds
+}
+
+func (opts FindOAuth2ApplicationsOptions) ToOrders() string {
+	return "id DESC"
+}
diff --git a/models/auth/oauth2_test.go b/models/auth/oauth2_test.go
new file mode 100644
index 0000000..9b562c8
--- /dev/null
+++ b/models/auth/oauth2_test.go
@@ -0,0 +1,300 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"path/filepath"
+	"slices"
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOAuth2Application_GenerateClientSecret(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{ID: 1})
+	secret, err := app.GenerateClientSecret(db.DefaultContext)
+	require.NoError(t, err)
+	assert.NotEmpty(t, secret)
+	unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{ID: 1, ClientSecret: app.ClientSecret})
+}
+
+func BenchmarkOAuth2Application_GenerateClientSecret(b *testing.B) {
+	require.NoError(b, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(b, &auth_model.OAuth2Application{ID: 1})
+	for i := 0; i < b.N; i++ {
+		_, _ = app.GenerateClientSecret(db.DefaultContext)
+	}
+}
+
+func TestOAuth2Application_ContainsRedirectURI(t *testing.T) {
+	app := &auth_model.OAuth2Application{
+		RedirectURIs: []string{"a", "b", "c"},
+	}
+	assert.True(t, app.ContainsRedirectURI("a"))
+	assert.True(t, app.ContainsRedirectURI("b"))
+	assert.True(t, app.ContainsRedirectURI("c"))
+	assert.False(t, app.ContainsRedirectURI("d"))
+}
+
+func TestOAuth2Application_ContainsRedirectURI_WithPort(t *testing.T) {
+	app := &auth_model.OAuth2Application{
+		RedirectURIs:       []string{"http://127.0.0.1/", "http://::1/", "http://192.168.0.1/", "http://intranet/", "https://127.0.0.1/"},
+		ConfidentialClient: false,
+	}
+
+	// http loopback uris should ignore port
+	// https://datatracker.ietf.org/doc/html/rfc8252#section-7.3
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1:3456/"))
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1/"))
+	assert.True(t, app.ContainsRedirectURI("http://[::1]:3456/"))
+
+	// not http
+	assert.False(t, app.ContainsRedirectURI("https://127.0.0.1:3456/"))
+	// not loopback
+	assert.False(t, app.ContainsRedirectURI("http://192.168.0.1:9954/"))
+	assert.False(t, app.ContainsRedirectURI("http://intranet:3456/"))
+	// unparsable
+	assert.False(t, app.ContainsRedirectURI(":"))
+}
+
+func TestOAuth2Application_ContainsRedirect_Slash(t *testing.T) {
+	app := &auth_model.OAuth2Application{RedirectURIs: []string{"http://127.0.0.1"}}
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1"))
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1/"))
+	assert.False(t, app.ContainsRedirectURI("http://127.0.0.1/other"))
+
+	app = &auth_model.OAuth2Application{RedirectURIs: []string{"http://127.0.0.1/"}}
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1"))
+	assert.True(t, app.ContainsRedirectURI("http://127.0.0.1/"))
+	assert.False(t, app.ContainsRedirectURI("http://127.0.0.1/other"))
+}
+
+func TestOAuth2Application_ValidateClientSecret(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{ID: 1})
+	secret, err := app.GenerateClientSecret(db.DefaultContext)
+	require.NoError(t, err)
+	assert.True(t, app.ValidateClientSecret([]byte(secret)))
+	assert.False(t, app.ValidateClientSecret([]byte("fewijfowejgfiowjeoifew")))
+}
+
+func TestGetOAuth2ApplicationByClientID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app, err := auth_model.GetOAuth2ApplicationByClientID(db.DefaultContext, "da7da3ba-9a13-4167-856f-3899de0b0138")
+	require.NoError(t, err)
+	assert.Equal(t, "da7da3ba-9a13-4167-856f-3899de0b0138", app.ClientID)
+
+	app, err = auth_model.GetOAuth2ApplicationByClientID(db.DefaultContext, "invalid client id")
+	require.Error(t, err)
+	assert.Nil(t, app)
+}
+
+func TestCreateOAuth2Application(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app, err := auth_model.CreateOAuth2Application(db.DefaultContext, auth_model.CreateOAuth2ApplicationOptions{Name: "newapp", UserID: 1})
+	require.NoError(t, err)
+	assert.Equal(t, "newapp", app.Name)
+	assert.Len(t, app.ClientID, 36)
+	unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{Name: "newapp"})
+}
+
+func TestOAuth2Application_TableName(t *testing.T) {
+	assert.Equal(t, "oauth2_application", new(auth_model.OAuth2Application).TableName())
+}
+
+func TestOAuth2Application_GetGrantByUserID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{ID: 1})
+	grant, err := app.GetGrantByUserID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), grant.UserID)
+
+	grant, err = app.GetGrantByUserID(db.DefaultContext, 34923458)
+	require.NoError(t, err)
+	assert.Nil(t, grant)
+}
+
+func TestOAuth2Application_CreateGrant(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Application{ID: 1})
+	grant, err := app.CreateGrant(db.DefaultContext, 2, "")
+	require.NoError(t, err)
+	assert.NotNil(t, grant)
+	assert.Equal(t, int64(2), grant.UserID)
+	assert.Equal(t, int64(1), grant.ApplicationID)
+	assert.Equal(t, "", grant.Scope)
+}
+
+//////////////////// Grant
+
+func TestGetOAuth2GrantByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	grant, err := auth_model.GetOAuth2GrantByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), grant.ID)
+
+	grant, err = auth_model.GetOAuth2GrantByID(db.DefaultContext, 34923458)
+	require.NoError(t, err)
+	assert.Nil(t, grant)
+}
+
+func TestOAuth2Grant_IncreaseCounter(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	grant := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Grant{ID: 1, Counter: 1})
+	require.NoError(t, grant.IncreaseCounter(db.DefaultContext))
+	assert.Equal(t, int64(2), grant.Counter)
+	unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Grant{ID: 1, Counter: 2})
+}
+
+func TestOAuth2Grant_ScopeContains(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	grant := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Grant{ID: 1, Scope: "openid profile"})
+	assert.True(t, grant.ScopeContains("openid"))
+	assert.True(t, grant.ScopeContains("profile"))
+	assert.False(t, grant.ScopeContains("profil"))
+	assert.False(t, grant.ScopeContains("profile2"))
+}
+
+func TestOAuth2Grant_GenerateNewAuthorizationCode(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	grant := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2Grant{ID: 1})
+	code, err := grant.GenerateNewAuthorizationCode(db.DefaultContext, "https://example2.com/callback", "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg", "S256")
+	require.NoError(t, err)
+	assert.NotNil(t, code)
+	assert.Greater(t, len(code.Code), 32) // secret length > 32
+}
+
+func TestOAuth2Grant_TableName(t *testing.T) {
+	assert.Equal(t, "oauth2_grant", new(auth_model.OAuth2Grant).TableName())
+}
+
+func TestGetOAuth2GrantsByUserID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	result, err := auth_model.GetOAuth2GrantsByUserID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Len(t, result, 1)
+	assert.Equal(t, int64(1), result[0].ID)
+	assert.Equal(t, result[0].ApplicationID, result[0].Application.ID)
+
+	result, err = auth_model.GetOAuth2GrantsByUserID(db.DefaultContext, 34134)
+	require.NoError(t, err)
+	assert.Empty(t, result)
+}
+
+func TestRevokeOAuth2Grant(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	require.NoError(t, auth_model.RevokeOAuth2Grant(db.DefaultContext, 1, 1))
+	unittest.AssertNotExistsBean(t, &auth_model.OAuth2Grant{ID: 1, UserID: 1})
+}
+
+//////////////////// Authorization Code
+
+func TestGetOAuth2AuthorizationByCode(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	code, err := auth_model.GetOAuth2AuthorizationByCode(db.DefaultContext, "authcode")
+	require.NoError(t, err)
+	assert.NotNil(t, code)
+	assert.Equal(t, "authcode", code.Code)
+	assert.Equal(t, int64(1), code.ID)
+
+	code, err = auth_model.GetOAuth2AuthorizationByCode(db.DefaultContext, "does not exist")
+	require.NoError(t, err)
+	assert.Nil(t, code)
+}
+
+func TestOAuth2AuthorizationCode_ValidateCodeChallenge(t *testing.T) {
+	// test plain
+	code := &auth_model.OAuth2AuthorizationCode{
+		CodeChallengeMethod: "plain",
+		CodeChallenge:       "test123",
+	}
+	assert.True(t, code.ValidateCodeChallenge("test123"))
+	assert.False(t, code.ValidateCodeChallenge("ierwgjoergjio"))
+
+	// test S256
+	code = &auth_model.OAuth2AuthorizationCode{
+		CodeChallengeMethod: "S256",
+		CodeChallenge:       "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg",
+	}
+	assert.True(t, code.ValidateCodeChallenge("N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt"))
+	assert.False(t, code.ValidateCodeChallenge("wiogjerogorewngoenrgoiuenorg"))
+
+	// test unknown
+	code = &auth_model.OAuth2AuthorizationCode{
+		CodeChallengeMethod: "monkey",
+		CodeChallenge:       "foiwgjioriogeiogjerger",
+	}
+	assert.False(t, code.ValidateCodeChallenge("foiwgjioriogeiogjerger"))
+
+	// test no code challenge
+	code = &auth_model.OAuth2AuthorizationCode{
+		CodeChallengeMethod: "",
+		CodeChallenge:       "foierjiogerogerg",
+	}
+	assert.True(t, code.ValidateCodeChallenge(""))
+}
+
+func TestOAuth2AuthorizationCode_GenerateRedirectURI(t *testing.T) {
+	code := &auth_model.OAuth2AuthorizationCode{
+		RedirectURI: "https://example.com/callback",
+		Code:        "thecode",
+	}
+
+	redirect, err := code.GenerateRedirectURI("thestate")
+	require.NoError(t, err)
+	assert.Equal(t, "https://example.com/callback?code=thecode&state=thestate", redirect.String())
+
+	redirect, err = code.GenerateRedirectURI("")
+	require.NoError(t, err)
+	assert.Equal(t, "https://example.com/callback?code=thecode", redirect.String())
+}
+
+func TestOAuth2AuthorizationCode_Invalidate(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	code := unittest.AssertExistsAndLoadBean(t, &auth_model.OAuth2AuthorizationCode{Code: "authcode"})
+	require.NoError(t, code.Invalidate(db.DefaultContext))
+	unittest.AssertNotExistsBean(t, &auth_model.OAuth2AuthorizationCode{Code: "authcode"})
+}
+
+func TestOAuth2AuthorizationCode_TableName(t *testing.T) {
+	assert.Equal(t, "oauth2_authorization_code", new(auth_model.OAuth2AuthorizationCode).TableName())
+}
+
+func TestBuiltinApplicationsClientIDs(t *testing.T) {
+	clientIDs := auth_model.BuiltinApplicationsClientIDs()
+	slices.Sort(clientIDs)
+	assert.EqualValues(t, []string{"a4792ccc-144e-407e-86c9-5e7d8d9c3269", "d57cb8c4-630c-4168-8324-ec79935e18d4", "e90ee53c-94e2-48ac-9358-a874fb9e0662"}, clientIDs)
+}
+
+func TestOrphanedOAuth2Applications(t *testing.T) {
+	defer unittest.OverrideFixtures(
+		unittest.FixturesOptions{
+			Dir:  filepath.Join(setting.AppWorkPath, "models/fixtures/"),
+			Base: setting.AppWorkPath,
+			Dirs: []string{"models/auth/TestOrphanedOAuth2Applications/"},
+		},
+	)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := auth_model.CountOrphanedOAuth2Applications(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, count)
+	unittest.AssertExistsIf(t, true, &auth_model.OAuth2Application{ID: 1002})
+
+	_, err = auth_model.DeleteOrphanedOAuth2Applications(db.DefaultContext)
+	require.NoError(t, err)
+
+	count, err = auth_model.CountOrphanedOAuth2Applications(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+	unittest.AssertExistsIf(t, false, &auth_model.OAuth2Application{ID: 1002})
+	unittest.AssertExistsIf(t, true, &auth_model.OAuth2Application{ID: 1003})
+}
diff --git a/models/auth/session.go b/models/auth/session.go
new file mode 100644
index 0000000..75a205f
--- /dev/null
+++ b/models/auth/session.go
@@ -0,0 +1,120 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+// Session represents a session compatible for go-chi session
+type Session struct {
+	Key    string             `xorm:"pk CHAR(16)"` // has to be Key to match with go-chi/session
+	Data   []byte             `xorm:"BLOB"`        // on MySQL this has a maximum size of 64Kb - this may need to be increased
+	Expiry timeutil.TimeStamp // has to be Expiry to match with go-chi/session
+}
+
+func init() {
+	db.RegisterModel(new(Session))
+}
+
+// UpdateSession updates the session with provided id
+func UpdateSession(ctx context.Context, key string, data []byte) error {
+	_, err := db.GetEngine(ctx).ID(key).Update(&Session{
+		Data:   data,
+		Expiry: timeutil.TimeStampNow(),
+	})
+	return err
+}
+
+// ReadSession reads the data for the provided session
+func ReadSession(ctx context.Context, key string) (*Session, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	session, exist, err := db.Get[Session](ctx, builder.Eq{"`key`": key})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		session = &Session{
+			Key:    key,
+			Expiry: timeutil.TimeStampNow(),
+		}
+		if err := db.Insert(ctx, session); err != nil {
+			return nil, err
+		}
+	}
+
+	return session, committer.Commit()
+}
+
+// ExistSession checks if a session exists
+func ExistSession(ctx context.Context, key string) (bool, error) {
+	return db.Exist[Session](ctx, builder.Eq{"`key`": key})
+}
+
+// DestroySession destroys a session
+func DestroySession(ctx context.Context, key string) error {
+	_, err := db.GetEngine(ctx).Delete(&Session{
+		Key: key,
+	})
+	return err
+}
+
+// RegenerateSession regenerates a session from the old id
+func RegenerateSession(ctx context.Context, oldKey, newKey string) (*Session, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	if has, err := db.Exist[Session](ctx, builder.Eq{"`key`": newKey}); err != nil {
+		return nil, err
+	} else if has {
+		return nil, fmt.Errorf("session Key: %s already exists", newKey)
+	}
+
+	if has, err := db.Exist[Session](ctx, builder.Eq{"`key`": oldKey}); err != nil {
+		return nil, err
+	} else if !has {
+		if err := db.Insert(ctx, &Session{
+			Key:    oldKey,
+			Expiry: timeutil.TimeStampNow(),
+		}); err != nil {
+			return nil, err
+		}
+	}
+
+	if _, err := db.Exec(ctx, "UPDATE "+db.TableName(&Session{})+" SET `key` = ? WHERE `key`=?", newKey, oldKey); err != nil {
+		return nil, err
+	}
+
+	s, _, err := db.Get[Session](ctx, builder.Eq{"`key`": newKey})
+	if err != nil {
+		// is not exist, it should be impossible
+		return nil, err
+	}
+
+	return s, committer.Commit()
+}
+
+// CountSessions returns the number of sessions
+func CountSessions(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Count(&Session{})
+}
+
+// CleanupSessions cleans up expired sessions
+func CleanupSessions(ctx context.Context, maxLifetime int64) error {
+	_, err := db.GetEngine(ctx).Where("expiry <= ?", timeutil.TimeStampNow().Add(-maxLifetime)).Delete(&Session{})
+	return err
+}
diff --git a/models/auth/session_test.go b/models/auth/session_test.go
new file mode 100644
index 0000000..3b57239
--- /dev/null
+++ b/models/auth/session_test.go
@@ -0,0 +1,143 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAuthSession(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	defer timeutil.MockUnset()
+
+	key := "I-Like-Free-Software"
+
+	t.Run("Create Session", func(t *testing.T) {
+		// Ensure it doesn't exist.
+		ok, err := auth.ExistSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.False(t, ok)
+
+		preCount, err := auth.CountSessions(db.DefaultContext)
+		require.NoError(t, err)
+
+		now := time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC)
+		timeutil.MockSet(now)
+
+		// New session is created.
+		sess, err := auth.ReadSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.EqualValues(t, key, sess.Key)
+		assert.Empty(t, sess.Data)
+		assert.EqualValues(t, now.Unix(), sess.Expiry)
+
+		// Ensure it exists.
+		ok, err = auth.ExistSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.True(t, ok)
+
+		// Ensure the session is taken into account for count..
+		postCount, err := auth.CountSessions(db.DefaultContext)
+		require.NoError(t, err)
+		assert.Greater(t, postCount, preCount)
+	})
+
+	t.Run("Update session", func(t *testing.T) {
+		data := []byte{0xba, 0xdd, 0xc0, 0xde}
+		now := time.Date(2022, 1, 1, 0, 0, 0, 0, time.UTC)
+		timeutil.MockSet(now)
+
+		// Update session.
+		err := auth.UpdateSession(db.DefaultContext, key, data)
+		require.NoError(t, err)
+
+		timeutil.MockSet(time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC))
+
+		// Read updated session.
+		// Ensure data is updated and expiry is set from the update session call.
+		sess, err := auth.ReadSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.EqualValues(t, key, sess.Key)
+		assert.EqualValues(t, data, sess.Data)
+		assert.EqualValues(t, now.Unix(), sess.Expiry)
+
+		timeutil.MockSet(now)
+	})
+
+	t.Run("Delete session", func(t *testing.T) {
+		// Ensure it't exist.
+		ok, err := auth.ExistSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.True(t, ok)
+
+		preCount, err := auth.CountSessions(db.DefaultContext)
+		require.NoError(t, err)
+
+		err = auth.DestroySession(db.DefaultContext, key)
+		require.NoError(t, err)
+
+		// Ensure it doesn't exists.
+		ok, err = auth.ExistSession(db.DefaultContext, key)
+		require.NoError(t, err)
+		assert.False(t, ok)
+
+		// Ensure the session is taken into account for count..
+		postCount, err := auth.CountSessions(db.DefaultContext)
+		require.NoError(t, err)
+		assert.Less(t, postCount, preCount)
+	})
+
+	t.Run("Cleanup sessions", func(t *testing.T) {
+		timeutil.MockSet(time.Date(2023, 1, 1, 0, 0, 0, 0, time.UTC))
+
+		_, err := auth.ReadSession(db.DefaultContext, "sess-1")
+		require.NoError(t, err)
+
+		// One minute later.
+		timeutil.MockSet(time.Date(2023, 1, 1, 0, 1, 0, 0, time.UTC))
+		_, err = auth.ReadSession(db.DefaultContext, "sess-2")
+		require.NoError(t, err)
+
+		// 5 minutes, shouldn't clean up anything.
+		err = auth.CleanupSessions(db.DefaultContext, 5*60)
+		require.NoError(t, err)
+
+		ok, err := auth.ExistSession(db.DefaultContext, "sess-1")
+		require.NoError(t, err)
+		assert.True(t, ok)
+
+		ok, err = auth.ExistSession(db.DefaultContext, "sess-2")
+		require.NoError(t, err)
+		assert.True(t, ok)
+
+		// 1 minute, should clean up sess-1.
+		err = auth.CleanupSessions(db.DefaultContext, 60)
+		require.NoError(t, err)
+
+		ok, err = auth.ExistSession(db.DefaultContext, "sess-1")
+		require.NoError(t, err)
+		assert.False(t, ok)
+
+		ok, err = auth.ExistSession(db.DefaultContext, "sess-2")
+		require.NoError(t, err)
+		assert.True(t, ok)
+
+		// Now, should clean up sess-2.
+		err = auth.CleanupSessions(db.DefaultContext, 0)
+		require.NoError(t, err)
+
+		ok, err = auth.ExistSession(db.DefaultContext, "sess-2")
+		require.NoError(t, err)
+		assert.False(t, ok)
+	})
+}
diff --git a/models/auth/source.go b/models/auth/source.go
new file mode 100644
index 0000000..d03d497
--- /dev/null
+++ b/models/auth/source.go
@@ -0,0 +1,412 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+	"xorm.io/xorm/convert"
+)
+
+// Type represents an login type.
+type Type int
+
+// Note: new type must append to the end of list to maintain compatibility.
+const (
+	NoType Type = iota
+	Plain       // 1
+	LDAP        // 2
+	SMTP        // 3
+	PAM         // 4
+	DLDAP       // 5
+	OAuth2      // 6
+	SSPI        // 7
+	Remote      // 8
+)
+
+// String returns the string name of the LoginType
+func (typ Type) String() string {
+	return Names[typ]
+}
+
+// Int returns the int value of the LoginType
+func (typ Type) Int() int {
+	return int(typ)
+}
+
+// Names contains the name of LoginType values.
+var Names = map[Type]string{
+	LDAP:   "LDAP (via BindDN)",
+	DLDAP:  "LDAP (simple auth)", // Via direct bind
+	SMTP:   "SMTP",
+	PAM:    "PAM",
+	OAuth2: "OAuth2",
+	SSPI:   "SPNEGO with SSPI",
+	Remote: "Remote",
+}
+
+// Config represents login config as far as the db is concerned
+type Config interface {
+	convert.Conversion
+}
+
+// SkipVerifiable configurations provide a IsSkipVerify to check if SkipVerify is set
+type SkipVerifiable interface {
+	IsSkipVerify() bool
+}
+
+// HasTLSer configurations provide a HasTLS to check if TLS can be enabled
+type HasTLSer interface {
+	HasTLS() bool
+}
+
+// UseTLSer configurations provide a HasTLS to check if TLS is enabled
+type UseTLSer interface {
+	UseTLS() bool
+}
+
+// SSHKeyProvider configurations provide ProvidesSSHKeys to check if they provide SSHKeys
+type SSHKeyProvider interface {
+	ProvidesSSHKeys() bool
+}
+
+// RegisterableSource configurations provide RegisterSource which needs to be run on creation
+type RegisterableSource interface {
+	RegisterSource() error
+	UnregisterSource() error
+}
+
+var registeredConfigs = map[Type]func() Config{}
+
+// RegisterTypeConfig register a config for a provided type
+func RegisterTypeConfig(typ Type, exemplar Config) {
+	if reflect.TypeOf(exemplar).Kind() == reflect.Ptr {
+		// Pointer:
+		registeredConfigs[typ] = func() Config {
+			return reflect.New(reflect.ValueOf(exemplar).Elem().Type()).Interface().(Config)
+		}
+		return
+	}
+
+	// Not a Pointer
+	registeredConfigs[typ] = func() Config {
+		return reflect.New(reflect.TypeOf(exemplar)).Elem().Interface().(Config)
+	}
+}
+
+// SourceSettable configurations can have their authSource set on them
+type SourceSettable interface {
+	SetAuthSource(*Source)
+}
+
+// Source represents an external way for authorizing users.
+type Source struct {
+	ID            int64 `xorm:"pk autoincr"`
+	Type          Type
+	Name          string             `xorm:"UNIQUE"`
+	IsActive      bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	IsSyncEnabled bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	Cfg           convert.Conversion `xorm:"TEXT"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+// TableName xorm will read the table name from this method
+func (Source) TableName() string {
+	return "login_source"
+}
+
+func init() {
+	db.RegisterModel(new(Source))
+}
+
+// BeforeSet is invoked from XORM before setting the value of a field of this object.
+func (source *Source) BeforeSet(colName string, val xorm.Cell) {
+	if colName == "type" {
+		typ := Type(db.Cell2Int64(val))
+		constructor, ok := registeredConfigs[typ]
+		if !ok {
+			return
+		}
+		source.Cfg = constructor()
+		if settable, ok := source.Cfg.(SourceSettable); ok {
+			settable.SetAuthSource(source)
+		}
+	}
+}
+
+// TypeName return name of this login source type.
+func (source *Source) TypeName() string {
+	return Names[source.Type]
+}
+
+// IsLDAP returns true of this source is of the LDAP type.
+func (source *Source) IsLDAP() bool {
+	return source.Type == LDAP
+}
+
+// IsDLDAP returns true of this source is of the DLDAP type.
+func (source *Source) IsDLDAP() bool {
+	return source.Type == DLDAP
+}
+
+// IsSMTP returns true of this source is of the SMTP type.
+func (source *Source) IsSMTP() bool {
+	return source.Type == SMTP
+}
+
+// IsPAM returns true of this source is of the PAM type.
+func (source *Source) IsPAM() bool {
+	return source.Type == PAM
+}
+
+// IsOAuth2 returns true of this source is of the OAuth2 type.
+func (source *Source) IsOAuth2() bool {
+	return source.Type == OAuth2
+}
+
+// IsSSPI returns true of this source is of the SSPI type.
+func (source *Source) IsSSPI() bool {
+	return source.Type == SSPI
+}
+
+func (source *Source) IsRemote() bool {
+	return source.Type == Remote
+}
+
+// HasTLS returns true of this source supports TLS.
+func (source *Source) HasTLS() bool {
+	hasTLSer, ok := source.Cfg.(HasTLSer)
+	return ok && hasTLSer.HasTLS()
+}
+
+// UseTLS returns true of this source is configured to use TLS.
+func (source *Source) UseTLS() bool {
+	useTLSer, ok := source.Cfg.(UseTLSer)
+	return ok && useTLSer.UseTLS()
+}
+
+// SkipVerify returns true if this source is configured to skip SSL
+// verification.
+func (source *Source) SkipVerify() bool {
+	skipVerifiable, ok := source.Cfg.(SkipVerifiable)
+	return ok && skipVerifiable.IsSkipVerify()
+}
+
+// CreateSource inserts a AuthSource in the DB if not already
+// existing with the given name.
+func CreateSource(ctx context.Context, source *Source) error {
+	has, err := db.GetEngine(ctx).Where("name=?", source.Name).Exist(new(Source))
+	if err != nil {
+		return err
+	} else if has {
+		return ErrSourceAlreadyExist{source.Name}
+	}
+	// Synchronization is only available with LDAP for now
+	if !source.IsLDAP() {
+		source.IsSyncEnabled = false
+	}
+
+	_, err = db.GetEngine(ctx).Insert(source)
+	if err != nil {
+		return err
+	}
+
+	if !source.IsActive {
+		return nil
+	}
+
+	if settable, ok := source.Cfg.(SourceSettable); ok {
+		settable.SetAuthSource(source)
+	}
+
+	registerableSource, ok := source.Cfg.(RegisterableSource)
+	if !ok {
+		return nil
+	}
+
+	err = registerableSource.RegisterSource()
+	if err != nil {
+		// remove the AuthSource in case of errors while registering configuration
+		if _, err := db.GetEngine(ctx).ID(source.ID).Delete(new(Source)); err != nil {
+			log.Error("CreateSource: Error while wrapOpenIDConnectInitializeError: %v", err)
+		}
+	}
+	return err
+}
+
+type FindSourcesOptions struct {
+	db.ListOptions
+	IsActive  optional.Option[bool]
+	LoginType Type
+}
+
+func (opts FindSourcesOptions) ToConds() builder.Cond {
+	conds := builder.NewCond()
+	if opts.IsActive.Has() {
+		conds = conds.And(builder.Eq{"is_active": opts.IsActive.Value()})
+	}
+	if opts.LoginType != NoType {
+		conds = conds.And(builder.Eq{"`type`": opts.LoginType})
+	}
+	return conds
+}
+
+// IsSSPIEnabled returns true if there is at least one activated login
+// source of type LoginSSPI
+func IsSSPIEnabled(ctx context.Context) bool {
+	exist, err := db.Exist[Source](ctx, FindSourcesOptions{
+		IsActive:  optional.Some(true),
+		LoginType: SSPI,
+	}.ToConds())
+	if err != nil {
+		log.Error("IsSSPIEnabled: failed to query active SSPI sources: %v", err)
+		return false
+	}
+	return exist
+}
+
+// GetSourceByID returns login source by given ID.
+func GetSourceByID(ctx context.Context, id int64) (*Source, error) {
+	source := new(Source)
+	if id == 0 {
+		source.Cfg = registeredConfigs[NoType]()
+		// Set this source to active
+		// FIXME: allow disabling of db based password authentication in future
+		source.IsActive = true
+		return source, nil
+	}
+
+	has, err := db.GetEngine(ctx).ID(id).Get(source)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrSourceNotExist{id}
+	}
+	return source, nil
+}
+
+func GetSourceByName(ctx context.Context, name string) (*Source, error) {
+	source := &Source{}
+	has, err := db.GetEngine(ctx).Where("name = ?", name).Get(source)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrSourceNotExist{}
+	}
+	return source, nil
+}
+
+// UpdateSource updates a Source record in DB.
+func UpdateSource(ctx context.Context, source *Source) error {
+	var originalSource *Source
+	if source.IsOAuth2() {
+		// keep track of the original values so we can restore in case of errors while registering OAuth2 providers
+		var err error
+		if originalSource, err = GetSourceByID(ctx, source.ID); err != nil {
+			return err
+		}
+	}
+
+	has, err := db.GetEngine(ctx).Where("name=? AND id!=?", source.Name, source.ID).Exist(new(Source))
+	if err != nil {
+		return err
+	} else if has {
+		return ErrSourceAlreadyExist{source.Name}
+	}
+
+	_, err = db.GetEngine(ctx).ID(source.ID).AllCols().Update(source)
+	if err != nil {
+		return err
+	}
+
+	if !source.IsActive {
+		return nil
+	}
+
+	if settable, ok := source.Cfg.(SourceSettable); ok {
+		settable.SetAuthSource(source)
+	}
+
+	registerableSource, ok := source.Cfg.(RegisterableSource)
+	if !ok {
+		return nil
+	}
+
+	err = registerableSource.RegisterSource()
+	if err != nil {
+		// restore original values since we cannot update the provider it self
+		if _, err := db.GetEngine(ctx).ID(source.ID).AllCols().Update(originalSource); err != nil {
+			log.Error("UpdateSource: Error while wrapOpenIDConnectInitializeError: %v", err)
+		}
+	}
+	return err
+}
+
+// ErrSourceNotExist represents a "SourceNotExist" kind of error.
+type ErrSourceNotExist struct {
+	ID int64
+}
+
+// IsErrSourceNotExist checks if an error is a ErrSourceNotExist.
+func IsErrSourceNotExist(err error) bool {
+	_, ok := err.(ErrSourceNotExist)
+	return ok
+}
+
+func (err ErrSourceNotExist) Error() string {
+	return fmt.Sprintf("login source does not exist [id: %d]", err.ID)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrSourceNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrSourceAlreadyExist represents a "SourceAlreadyExist" kind of error.
+type ErrSourceAlreadyExist struct {
+	Name string
+}
+
+// IsErrSourceAlreadyExist checks if an error is a ErrSourceAlreadyExist.
+func IsErrSourceAlreadyExist(err error) bool {
+	_, ok := err.(ErrSourceAlreadyExist)
+	return ok
+}
+
+func (err ErrSourceAlreadyExist) Error() string {
+	return fmt.Sprintf("login source already exists [name: %s]", err.Name)
+}
+
+// Unwrap unwraps this as a ErrExist err
+func (err ErrSourceAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrSourceInUse represents a "SourceInUse" kind of error.
+type ErrSourceInUse struct {
+	ID int64
+}
+
+// IsErrSourceInUse checks if an error is a ErrSourceInUse.
+func IsErrSourceInUse(err error) bool {
+	_, ok := err.(ErrSourceInUse)
+	return ok
+}
+
+func (err ErrSourceInUse) Error() string {
+	return fmt.Sprintf("login source is still used by some users [id: %d]", err.ID)
+}
diff --git a/models/auth/source_test.go b/models/auth/source_test.go
new file mode 100644
index 0000000..522fecc
--- /dev/null
+++ b/models/auth/source_test.go
@@ -0,0 +1,61 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"strings"
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/json"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm/schemas"
+)
+
+type TestSource struct {
+	Provider                      string
+	ClientID                      string
+	ClientSecret                  string
+	OpenIDConnectAutoDiscoveryURL string
+	IconURL                       string
+}
+
+// FromDB fills up a LDAPConfig from serialized format.
+func (source *TestSource) FromDB(bs []byte) error {
+	return json.Unmarshal(bs, &source)
+}
+
+// ToDB exports a LDAPConfig to a serialized format.
+func (source *TestSource) ToDB() ([]byte, error) {
+	return json.Marshal(source)
+}
+
+func TestDumpAuthSource(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	authSourceSchema, err := db.TableInfo(new(auth_model.Source))
+	require.NoError(t, err)
+
+	auth_model.RegisterTypeConfig(auth_model.OAuth2, new(TestSource))
+
+	auth_model.CreateSource(db.DefaultContext, &auth_model.Source{
+		Type:     auth_model.OAuth2,
+		Name:     "TestSource",
+		IsActive: false,
+		Cfg: &TestSource{
+			Provider: "ConvertibleSourceName",
+			ClientID: "42",
+		},
+	})
+
+	sb := new(strings.Builder)
+
+	db.DumpTables([]*schemas.Table{authSourceSchema}, sb)
+
+	assert.Contains(t, sb.String(), `"Provider":"ConvertibleSourceName"`)
+}
diff --git a/models/auth/twofactor.go b/models/auth/twofactor.go
new file mode 100644
index 0000000..d0c341a
--- /dev/null
+++ b/models/auth/twofactor.go
@@ -0,0 +1,166 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"crypto/md5"
+	"crypto/sha256"
+	"crypto/subtle"
+	"encoding/base32"
+	"encoding/base64"
+	"encoding/hex"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/pquerna/otp/totp"
+	"golang.org/x/crypto/pbkdf2"
+)
+
+//
+// Two-factor authentication
+//
+
+// ErrTwoFactorNotEnrolled indicates that a user is not enrolled in two-factor authentication.
+type ErrTwoFactorNotEnrolled struct {
+	UID int64
+}
+
+// IsErrTwoFactorNotEnrolled checks if an error is a ErrTwoFactorNotEnrolled.
+func IsErrTwoFactorNotEnrolled(err error) bool {
+	_, ok := err.(ErrTwoFactorNotEnrolled)
+	return ok
+}
+
+func (err ErrTwoFactorNotEnrolled) Error() string {
+	return fmt.Sprintf("user not enrolled in 2FA [uid: %d]", err.UID)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrTwoFactorNotEnrolled) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// TwoFactor represents a two-factor authentication token.
+type TwoFactor struct {
+	ID               int64 `xorm:"pk autoincr"`
+	UID              int64 `xorm:"UNIQUE"`
+	Secret           string
+	ScratchSalt      string
+	ScratchHash      string
+	LastUsedPasscode string             `xorm:"VARCHAR(10)"`
+	CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix      timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(TwoFactor))
+}
+
+// GenerateScratchToken recreates the scratch token the user is using.
+func (t *TwoFactor) GenerateScratchToken() (string, error) {
+	tokenBytes, err := util.CryptoRandomBytes(6)
+	if err != nil {
+		return "", err
+	}
+	// these chars are specially chosen, avoid ambiguous chars like `0`, `O`, `1`, `I`.
+	const base32Chars = "ABCDEFGHJKLMNPQRSTUVWXYZ23456789"
+	token := base32.NewEncoding(base32Chars).WithPadding(base32.NoPadding).EncodeToString(tokenBytes)
+	t.ScratchSalt, _ = util.CryptoRandomString(10)
+	t.ScratchHash = HashToken(token, t.ScratchSalt)
+	return token, nil
+}
+
+// HashToken return the hashable salt
+func HashToken(token, salt string) string {
+	tempHash := pbkdf2.Key([]byte(token), []byte(salt), 10000, 50, sha256.New)
+	return hex.EncodeToString(tempHash)
+}
+
+// VerifyScratchToken verifies if the specified scratch token is valid.
+func (t *TwoFactor) VerifyScratchToken(token string) bool {
+	if len(token) == 0 {
+		return false
+	}
+	tempHash := HashToken(token, t.ScratchSalt)
+	return subtle.ConstantTimeCompare([]byte(t.ScratchHash), []byte(tempHash)) == 1
+}
+
+func (t *TwoFactor) getEncryptionKey() []byte {
+	k := md5.Sum([]byte(setting.SecretKey))
+	return k[:]
+}
+
+// SetSecret sets the 2FA secret.
+func (t *TwoFactor) SetSecret(secretString string) error {
+	secretBytes, err := secret.AesEncrypt(t.getEncryptionKey(), []byte(secretString))
+	if err != nil {
+		return err
+	}
+	t.Secret = base64.StdEncoding.EncodeToString(secretBytes)
+	return nil
+}
+
+// ValidateTOTP validates the provided passcode.
+func (t *TwoFactor) ValidateTOTP(passcode string) (bool, error) {
+	decodedStoredSecret, err := base64.StdEncoding.DecodeString(t.Secret)
+	if err != nil {
+		return false, err
+	}
+	secretBytes, err := secret.AesDecrypt(t.getEncryptionKey(), decodedStoredSecret)
+	if err != nil {
+		return false, err
+	}
+	secretStr := string(secretBytes)
+	return totp.Validate(passcode, secretStr), nil
+}
+
+// NewTwoFactor creates a new two-factor authentication token.
+func NewTwoFactor(ctx context.Context, t *TwoFactor) error {
+	_, err := db.GetEngine(ctx).Insert(t)
+	return err
+}
+
+// UpdateTwoFactor updates a two-factor authentication token.
+func UpdateTwoFactor(ctx context.Context, t *TwoFactor) error {
+	_, err := db.GetEngine(ctx).ID(t.ID).AllCols().Update(t)
+	return err
+}
+
+// GetTwoFactorByUID returns the two-factor authentication token associated with
+// the user, if any.
+func GetTwoFactorByUID(ctx context.Context, uid int64) (*TwoFactor, error) {
+	twofa := &TwoFactor{}
+	has, err := db.GetEngine(ctx).Where("uid=?", uid).Get(twofa)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrTwoFactorNotEnrolled{uid}
+	}
+	return twofa, nil
+}
+
+// HasTwoFactorByUID returns the two-factor authentication token associated with
+// the user, if any.
+func HasTwoFactorByUID(ctx context.Context, uid int64) (bool, error) {
+	return db.GetEngine(ctx).Where("uid=?", uid).Exist(&TwoFactor{})
+}
+
+// DeleteTwoFactorByID deletes two-factor authentication token by given ID.
+func DeleteTwoFactorByID(ctx context.Context, id, userID int64) error {
+	cnt, err := db.GetEngine(ctx).ID(id).Delete(&TwoFactor{
+		UID: userID,
+	})
+	if err != nil {
+		return err
+	} else if cnt != 1 {
+		return ErrTwoFactorNotEnrolled{userID}
+	}
+	return nil
+}
diff --git a/models/auth/webauthn.go b/models/auth/webauthn.go
new file mode 100644
index 0000000..aa13cf6
--- /dev/null
+++ b/models/auth/webauthn.go
@@ -0,0 +1,209 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/go-webauthn/webauthn/webauthn"
+)
+
+// ErrWebAuthnCredentialNotExist represents a "ErrWebAuthnCRedentialNotExist" kind of error.
+type ErrWebAuthnCredentialNotExist struct {
+	ID           int64
+	CredentialID []byte
+}
+
+func (err ErrWebAuthnCredentialNotExist) Error() string {
+	if len(err.CredentialID) == 0 {
+		return fmt.Sprintf("WebAuthn credential does not exist [id: %d]", err.ID)
+	}
+	return fmt.Sprintf("WebAuthn credential does not exist [credential_id: %x]", err.CredentialID)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrWebAuthnCredentialNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// IsErrWebAuthnCredentialNotExist checks if an error is a ErrWebAuthnCredentialNotExist.
+func IsErrWebAuthnCredentialNotExist(err error) bool {
+	_, ok := err.(ErrWebAuthnCredentialNotExist)
+	return ok
+}
+
+// WebAuthnCredential represents the WebAuthn credential data for a public-key
+// credential conformant to WebAuthn Level 3
+type WebAuthnCredential struct {
+	ID              int64 `xorm:"pk autoincr"`
+	Name            string
+	LowerName       string `xorm:"unique(s)"`
+	UserID          int64  `xorm:"INDEX unique(s)"`
+	CredentialID    []byte `xorm:"INDEX VARBINARY(1024)"`
+	PublicKey       []byte
+	AttestationType string
+	AAGUID          []byte
+	SignCount       uint32 `xorm:"BIGINT"`
+	CloneWarning    bool
+	BackupEligible  bool `XORM:"NOT NULL DEFAULT false"`
+	BackupState     bool `XORM:"NOT NULL DEFAULT false"`
+	// If legacy is set to true, backup_eligible and backup_state isn't set.
+	Legacy      bool               `XORM:"NOT NULL DEFAULT true"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(WebAuthnCredential))
+}
+
+// TableName returns a better table name for WebAuthnCredential
+func (cred WebAuthnCredential) TableName() string {
+	return "webauthn_credential"
+}
+
+// UpdateSignCount will update the database value of SignCount
+func (cred *WebAuthnCredential) UpdateSignCount(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).ID(cred.ID).Cols("sign_count").Update(cred)
+	return err
+}
+
+// UpdateFromLegacy update the values that aren't present on legacy credentials.
+func (cred *WebAuthnCredential) UpdateFromLegacy(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).ID(cred.ID).Cols("legacy", "backup_eligible", "backup_state").Update(cred)
+	return err
+}
+
+// BeforeInsert will be invoked by XORM before updating a record
+func (cred *WebAuthnCredential) BeforeInsert() {
+	cred.LowerName = strings.ToLower(cred.Name)
+}
+
+// BeforeUpdate will be invoked by XORM before updating a record
+func (cred *WebAuthnCredential) BeforeUpdate() {
+	cred.LowerName = strings.ToLower(cred.Name)
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (cred *WebAuthnCredential) AfterLoad() {
+	cred.LowerName = strings.ToLower(cred.Name)
+}
+
+// WebAuthnCredentialList is a list of *WebAuthnCredential
+type WebAuthnCredentialList []*WebAuthnCredential
+
+// ToCredentials will convert all WebAuthnCredentials to webauthn.Credentials
+func (list WebAuthnCredentialList) ToCredentials() []webauthn.Credential {
+	creds := make([]webauthn.Credential, 0, len(list))
+	for _, cred := range list {
+		creds = append(creds, webauthn.Credential{
+			ID:              cred.CredentialID,
+			PublicKey:       cred.PublicKey,
+			AttestationType: cred.AttestationType,
+			Flags: webauthn.CredentialFlags{
+				BackupEligible: cred.BackupEligible,
+				BackupState:    cred.BackupState,
+			},
+			Authenticator: webauthn.Authenticator{
+				AAGUID:       cred.AAGUID,
+				SignCount:    cred.SignCount,
+				CloneWarning: cred.CloneWarning,
+			},
+		})
+	}
+	return creds
+}
+
+// GetWebAuthnCredentialsByUID returns all WebAuthn credentials of the given user
+func GetWebAuthnCredentialsByUID(ctx context.Context, uid int64) (WebAuthnCredentialList, error) {
+	creds := make(WebAuthnCredentialList, 0)
+	return creds, db.GetEngine(ctx).Where("user_id = ?", uid).Find(&creds)
+}
+
+// ExistsWebAuthnCredentialsForUID returns if the given user has credentials
+func ExistsWebAuthnCredentialsForUID(ctx context.Context, uid int64) (bool, error) {
+	return db.GetEngine(ctx).Where("user_id = ?", uid).Exist(&WebAuthnCredential{})
+}
+
+// GetWebAuthnCredentialByName returns WebAuthn credential by id
+func GetWebAuthnCredentialByName(ctx context.Context, uid int64, name string) (*WebAuthnCredential, error) {
+	cred := new(WebAuthnCredential)
+	if found, err := db.GetEngine(ctx).Where("user_id = ? AND lower_name = ?", uid, strings.ToLower(name)).Get(cred); err != nil {
+		return nil, err
+	} else if !found {
+		return nil, ErrWebAuthnCredentialNotExist{}
+	}
+	return cred, nil
+}
+
+// GetWebAuthnCredentialByID returns WebAuthn credential by id
+func GetWebAuthnCredentialByID(ctx context.Context, id int64) (*WebAuthnCredential, error) {
+	cred := new(WebAuthnCredential)
+	if found, err := db.GetEngine(ctx).ID(id).Get(cred); err != nil {
+		return nil, err
+	} else if !found {
+		return nil, ErrWebAuthnCredentialNotExist{ID: id}
+	}
+	return cred, nil
+}
+
+// HasWebAuthnRegistrationsByUID returns whether a given user has WebAuthn registrations
+func HasWebAuthnRegistrationsByUID(ctx context.Context, uid int64) (bool, error) {
+	return db.GetEngine(ctx).Where("user_id = ?", uid).Exist(&WebAuthnCredential{})
+}
+
+// GetWebAuthnCredentialByCredID returns WebAuthn credential by credential ID
+func GetWebAuthnCredentialByCredID(ctx context.Context, userID int64, credID []byte) (*WebAuthnCredential, error) {
+	cred := new(WebAuthnCredential)
+	if found, err := db.GetEngine(ctx).Where("user_id = ? AND credential_id = ?", userID, credID).Get(cred); err != nil {
+		return nil, err
+	} else if !found {
+		return nil, ErrWebAuthnCredentialNotExist{CredentialID: credID}
+	}
+	return cred, nil
+}
+
+// CreateCredential will create a new WebAuthnCredential from the given Credential
+func CreateCredential(ctx context.Context, userID int64, name string, cred *webauthn.Credential) (*WebAuthnCredential, error) {
+	c := &WebAuthnCredential{
+		UserID:          userID,
+		Name:            name,
+		CredentialID:    cred.ID,
+		PublicKey:       cred.PublicKey,
+		AttestationType: cred.AttestationType,
+		AAGUID:          cred.Authenticator.AAGUID,
+		SignCount:       cred.Authenticator.SignCount,
+		CloneWarning:    false,
+		BackupEligible:  cred.Flags.BackupEligible,
+		BackupState:     cred.Flags.BackupState,
+		Legacy:          false,
+	}
+
+	if err := db.Insert(ctx, c); err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
+// DeleteCredential will delete WebAuthnCredential
+func DeleteCredential(ctx context.Context, id, userID int64) (bool, error) {
+	had, err := db.GetEngine(ctx).ID(id).Where("user_id = ?", userID).Delete(&WebAuthnCredential{})
+	return had > 0, err
+}
+
+// WebAuthnCredentials implementns the webauthn.User interface
+func WebAuthnCredentials(ctx context.Context, userID int64) ([]webauthn.Credential, error) {
+	dbCreds, err := GetWebAuthnCredentialsByUID(ctx, userID)
+	if err != nil {
+		return nil, err
+	}
+
+	return dbCreds.ToCredentials(), nil
+}
diff --git a/models/auth/webauthn_test.go b/models/auth/webauthn_test.go
new file mode 100644
index 0000000..e1cd652
--- /dev/null
+++ b/models/auth/webauthn_test.go
@@ -0,0 +1,78 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package auth_test
+
+import (
+	"testing"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/go-webauthn/webauthn/webauthn"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetWebAuthnCredentialByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	res, err := auth_model.GetWebAuthnCredentialByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, "WebAuthn credential", res.Name)
+
+	_, err = auth_model.GetWebAuthnCredentialByID(db.DefaultContext, 342432)
+	require.Error(t, err)
+	assert.True(t, auth_model.IsErrWebAuthnCredentialNotExist(err))
+}
+
+func TestGetWebAuthnCredentialsByUID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	res, err := auth_model.GetWebAuthnCredentialsByUID(db.DefaultContext, 32)
+	require.NoError(t, err)
+	assert.Len(t, res, 1)
+	assert.Equal(t, "WebAuthn credential", res[0].Name)
+}
+
+func TestWebAuthnCredential_TableName(t *testing.T) {
+	assert.Equal(t, "webauthn_credential", auth_model.WebAuthnCredential{}.TableName())
+}
+
+func TestWebAuthnCredential_UpdateSignCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	cred := unittest.AssertExistsAndLoadBean(t, &auth_model.WebAuthnCredential{ID: 1})
+	cred.SignCount = 1
+	require.NoError(t, cred.UpdateSignCount(db.DefaultContext))
+	unittest.AssertExistsIf(t, true, &auth_model.WebAuthnCredential{ID: 1, SignCount: 1})
+}
+
+func TestWebAuthnCredential_UpdateLargeCounter(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	cred := unittest.AssertExistsAndLoadBean(t, &auth_model.WebAuthnCredential{ID: 1})
+	cred.SignCount = 0xffffffff
+	require.NoError(t, cred.UpdateSignCount(db.DefaultContext))
+	unittest.AssertExistsIf(t, true, &auth_model.WebAuthnCredential{ID: 1, SignCount: 0xffffffff})
+}
+
+func TestWebAuthenCredential_UpdateFromLegacy(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	cred := unittest.AssertExistsAndLoadBean(t, &auth_model.WebAuthnCredential{ID: 1, Legacy: true})
+	cred.Legacy = false
+	cred.BackupEligible = true
+	cred.BackupState = true
+	require.NoError(t, cred.UpdateFromLegacy(db.DefaultContext))
+	unittest.AssertExistsIf(t, true, &auth_model.WebAuthnCredential{ID: 1, BackupEligible: true, BackupState: true}, "legacy = false")
+}
+
+func TestCreateCredential(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	res, err := auth_model.CreateCredential(db.DefaultContext, 1, "WebAuthn Created Credential", &webauthn.Credential{ID: []byte("Test"), Flags: webauthn.CredentialFlags{BackupEligible: true, BackupState: true}})
+	require.NoError(t, err)
+	assert.Equal(t, "WebAuthn Created Credential", res.Name)
+	assert.Equal(t, []byte("Test"), res.CredentialID)
+
+	unittest.AssertExistsIf(t, true, &auth_model.WebAuthnCredential{Name: "WebAuthn Created Credential", UserID: 1, BackupEligible: true, BackupState: true}, "legacy = false")
+}
diff --git a/models/avatars/avatar.go b/models/avatars/avatar.go
new file mode 100644
index 0000000..9eb34dc
--- /dev/null
+++ b/models/avatars/avatar.go
@@ -0,0 +1,238 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package avatars
+
+import (
+	"context"
+	"crypto/md5"
+	"encoding/hex"
+	"fmt"
+	"net/url"
+	"path"
+	"strconv"
+	"strings"
+	"sync/atomic"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/cache"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"code.forgejo.org/forgejo-contrib/go-libravatar"
+)
+
+const (
+	// DefaultAvatarClass is the default class of a rendered avatar
+	DefaultAvatarClass = "ui avatar tw-align-middle"
+	// DefaultAvatarPixelSize is the default size in pixels of a rendered avatar
+	DefaultAvatarPixelSize = 28
+)
+
+// EmailHash represents a pre-generated hash map (mainly used by LibravatarURL, it queries email server's DNS records)
+type EmailHash struct {
+	Hash  string `xorm:"pk varchar(32)"`
+	Email string `xorm:"UNIQUE NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(EmailHash))
+}
+
+type avatarSettingStruct struct {
+	defaultAvatarLink string
+	gravatarSource    string
+	gravatarSourceURL *url.URL
+	libravatar        *libravatar.Libravatar
+}
+
+var avatarSettingAtomic atomic.Pointer[avatarSettingStruct]
+
+func loadAvatarSetting() (*avatarSettingStruct, error) {
+	s := avatarSettingAtomic.Load()
+	if s == nil || s.gravatarSource != setting.GravatarSource {
+		s = &avatarSettingStruct{}
+		u, err := url.Parse(setting.AppSubURL)
+		if err != nil {
+			return nil, fmt.Errorf("unable to parse AppSubURL: %w", err)
+		}
+
+		u.Path = path.Join(u.Path, "/assets/img/avatar_default.png")
+		s.defaultAvatarLink = u.String()
+
+		s.gravatarSourceURL, err = url.Parse(setting.GravatarSource)
+		if err != nil {
+			return nil, fmt.Errorf("unable to parse GravatarSource %q: %w", setting.GravatarSource, err)
+		}
+
+		s.libravatar = libravatar.New()
+		if s.gravatarSourceURL.Scheme == "https" {
+			s.libravatar.SetUseHTTPS(true)
+			s.libravatar.SetSecureFallbackHost(s.gravatarSourceURL.Host)
+		} else {
+			s.libravatar.SetUseHTTPS(false)
+			s.libravatar.SetFallbackHost(s.gravatarSourceURL.Host)
+		}
+
+		avatarSettingAtomic.Store(s)
+	}
+	return s, nil
+}
+
+// DefaultAvatarLink the default avatar link
+func DefaultAvatarLink() string {
+	a, err := loadAvatarSetting()
+	if err != nil {
+		log.Error("Failed to loadAvatarSetting: %v", err)
+		return ""
+	}
+	return a.defaultAvatarLink
+}
+
+// HashEmail hashes email address to MD5 string. https://en.gravatar.com/site/implement/hash/
+func HashEmail(email string) string {
+	m := md5.New()
+	_, _ = m.Write([]byte(strings.ToLower(strings.TrimSpace(email))))
+	return hex.EncodeToString(m.Sum(nil))
+}
+
+// GetEmailForHash converts a provided md5sum to the email
+func GetEmailForHash(ctx context.Context, md5Sum string) (string, error) {
+	return cache.GetString("Avatar:"+md5Sum, func() (string, error) {
+		emailHash := EmailHash{
+			Hash: strings.ToLower(strings.TrimSpace(md5Sum)),
+		}
+
+		_, err := db.GetEngine(ctx).Get(&emailHash)
+		return emailHash.Email, err
+	})
+}
+
+// LibravatarURL returns the URL for the given email. Slow due to the DNS lookup.
+// This function should only be called if a federated avatar service is enabled.
+func LibravatarURL(email string) (*url.URL, error) {
+	a, err := loadAvatarSetting()
+	if err != nil {
+		return nil, err
+	}
+	urlStr, err := a.libravatar.FromEmail(email)
+	if err != nil {
+		log.Error("LibravatarService.FromEmail(email=%s): error %v", email, err)
+		return nil, err
+	}
+	u, err := url.Parse(urlStr)
+	if err != nil {
+		log.Error("Failed to parse libravatar url(%s): error %v", urlStr, err)
+		return nil, err
+	}
+	return u, nil
+}
+
+// saveEmailHash returns an avatar link for a provided email,
+// the email and hash are saved into database, which will be used by GetEmailForHash later
+func saveEmailHash(ctx context.Context, email string) string {
+	lowerEmail := strings.ToLower(strings.TrimSpace(email))
+	emailHash := HashEmail(lowerEmail)
+	_, _ = cache.GetString("Avatar:"+emailHash, func() (string, error) {
+		emailHash := &EmailHash{
+			Email: lowerEmail,
+			Hash:  emailHash,
+		}
+		// OK we're going to open a session just because I think that that might hide away any problems with postgres reporting errors
+		if err := db.WithTx(ctx, func(ctx context.Context) error {
+			has, err := db.GetEngine(ctx).Where("email = ? AND hash = ?", emailHash.Email, emailHash.Hash).Get(new(EmailHash))
+			if has || err != nil {
+				// Seriously we don't care about any DB problems just return the lowerEmail - we expect the transaction to fail most of the time
+				return nil
+			}
+			_, _ = db.GetEngine(ctx).Insert(emailHash)
+			return nil
+		}); err != nil {
+			// Seriously we don't care about any DB problems just return the lowerEmail - we expect the transaction to fail most of the time
+			return lowerEmail, nil
+		}
+		return lowerEmail, nil
+	})
+	return emailHash
+}
+
+// GenerateUserAvatarFastLink returns a fast link (302) to the user's avatar: "/user/avatar/${User.Name}/${size}"
+func GenerateUserAvatarFastLink(userName string, size int) string {
+	if size < 0 {
+		size = 0
+	}
+	return setting.AppSubURL + "/user/avatar/" + url.PathEscape(userName) + "/" + strconv.Itoa(size)
+}
+
+// GenerateUserAvatarImageLink returns a link for `User.Avatar` image file: "/avatars/${User.Avatar}"
+func GenerateUserAvatarImageLink(userAvatar string, size int) string {
+	if size > 0 {
+		return setting.AppSubURL + "/avatars/" + url.PathEscape(userAvatar) + "?size=" + strconv.Itoa(size)
+	}
+	return setting.AppSubURL + "/avatars/" + url.PathEscape(userAvatar)
+}
+
+// generateRecognizedAvatarURL generate a recognized avatar (Gravatar/Libravatar) URL, it modifies the URL so the parameter is passed by a copy
+func generateRecognizedAvatarURL(u url.URL, size int) string {
+	urlQuery := u.Query()
+	urlQuery.Set("d", "identicon")
+	if size > 0 {
+		urlQuery.Set("s", strconv.Itoa(size))
+	}
+	u.RawQuery = urlQuery.Encode()
+	return u.String()
+}
+
+// generateEmailAvatarLink returns a email avatar link.
+// if final is true, it may use a slow path (eg: query DNS).
+// if final is false, it always uses a fast path.
+func generateEmailAvatarLink(ctx context.Context, email string, size int, final bool) string {
+	email = strings.TrimSpace(email)
+	if email == "" {
+		return DefaultAvatarLink()
+	}
+
+	avatarSetting, err := loadAvatarSetting()
+	if err != nil {
+		return DefaultAvatarLink()
+	}
+
+	enableFederatedAvatar := setting.Config().Picture.EnableFederatedAvatar.Value(ctx)
+	if enableFederatedAvatar {
+		emailHash := saveEmailHash(ctx, email)
+		if final {
+			// for final link, we can spend more time on slow external query
+			var avatarURL *url.URL
+			if avatarURL, err = LibravatarURL(email); err != nil {
+				return DefaultAvatarLink()
+			}
+			return generateRecognizedAvatarURL(*avatarURL, size)
+		}
+		// for non-final link, we should return fast (use a 302 redirection link)
+		urlStr := setting.AppSubURL + "/avatar/" + url.PathEscape(emailHash)
+		if size > 0 {
+			urlStr += "?size=" + strconv.Itoa(size)
+		}
+		return urlStr
+	}
+
+	disableGravatar := setting.Config().Picture.DisableGravatar.Value(ctx)
+	if !disableGravatar {
+		// copy GravatarSourceURL, because we will modify its Path.
+		avatarURLCopy := *avatarSetting.gravatarSourceURL
+		avatarURLCopy.Path = path.Join(avatarURLCopy.Path, HashEmail(email))
+		return generateRecognizedAvatarURL(avatarURLCopy, size)
+	}
+
+	return DefaultAvatarLink()
+}
+
+// GenerateEmailAvatarFastLink returns a avatar link (fast, the link may be a delegated one: "/avatar/${hash}")
+func GenerateEmailAvatarFastLink(ctx context.Context, email string, size int) string {
+	return generateEmailAvatarLink(ctx, email, size, false)
+}
+
+// GenerateEmailAvatarFinalLink returns a avatar final link (maybe slow)
+func GenerateEmailAvatarFinalLink(ctx context.Context, email string, size int) string {
+	return generateEmailAvatarLink(ctx, email, size, true)
+}
diff --git a/models/avatars/avatar_test.go b/models/avatars/avatar_test.go
new file mode 100644
index 0000000..85c40c3
--- /dev/null
+++ b/models/avatars/avatar_test.go
@@ -0,0 +1,59 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package avatars_test
+
+import (
+	"testing"
+
+	avatars_model "code.gitea.io/gitea/models/avatars"
+	"code.gitea.io/gitea/models/db"
+	system_model "code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/setting/config"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const gravatarSource = "https://secure.gravatar.com/avatar/"
+
+func disableGravatar(t *testing.T) {
+	err := system_model.SetSettings(db.DefaultContext, map[string]string{setting.Config().Picture.EnableFederatedAvatar.DynKey(): "false"})
+	require.NoError(t, err)
+	err = system_model.SetSettings(db.DefaultContext, map[string]string{setting.Config().Picture.DisableGravatar.DynKey(): "true"})
+	require.NoError(t, err)
+}
+
+func enableGravatar(t *testing.T) {
+	err := system_model.SetSettings(db.DefaultContext, map[string]string{setting.Config().Picture.DisableGravatar.DynKey(): "false"})
+	require.NoError(t, err)
+	setting.GravatarSource = gravatarSource
+}
+
+func TestHashEmail(t *testing.T) {
+	assert.Equal(t,
+		"d41d8cd98f00b204e9800998ecf8427e",
+		avatars_model.HashEmail(""),
+	)
+	assert.Equal(t,
+		"353cbad9b58e69c96154ad99f92bedc7",
+		avatars_model.HashEmail("gitea@example.com"),
+	)
+}
+
+func TestSizedAvatarLink(t *testing.T) {
+	setting.AppSubURL = "/testsuburl"
+
+	disableGravatar(t)
+	config.GetDynGetter().InvalidateCache()
+	assert.Equal(t, "/testsuburl/assets/img/avatar_default.png",
+		avatars_model.GenerateEmailAvatarFastLink(db.DefaultContext, "gitea@example.com", 100))
+
+	enableGravatar(t)
+	config.GetDynGetter().InvalidateCache()
+	assert.Equal(t,
+		"https://secure.gravatar.com/avatar/353cbad9b58e69c96154ad99f92bedc7?d=identicon&s=100",
+		avatars_model.GenerateEmailAvatarFastLink(db.DefaultContext, "gitea@example.com", 100),
+	)
+}
diff --git a/models/avatars/main_test.go b/models/avatars/main_test.go
new file mode 100644
index 0000000..c721a7d
--- /dev/null
+++ b/models/avatars/main_test.go
@@ -0,0 +1,18 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package avatars_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/perm/access"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/db/collation.go b/models/db/collation.go
new file mode 100644
index 0000000..39d28fa
--- /dev/null
+++ b/models/db/collation.go
@@ -0,0 +1,159 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+type CheckCollationsResult struct {
+	ExpectedCollation        string
+	AvailableCollation       container.Set[string]
+	DatabaseCollation        string
+	IsCollationCaseSensitive func(s string) bool
+	CollationEquals          func(a, b string) bool
+	ExistingTableNumber      int
+
+	InconsistentCollationColumns []string
+}
+
+func findAvailableCollationsMySQL(x *xorm.Engine) (ret container.Set[string], err error) {
+	var res []struct {
+		Collation string
+	}
+	if err = x.SQL("SHOW COLLATION WHERE (Collation = 'utf8mb4_bin') OR (Collation LIKE '%\\_as\\_cs%')").Find(&res); err != nil {
+		return nil, err
+	}
+	ret = make(container.Set[string], len(res))
+	for _, r := range res {
+		ret.Add(r.Collation)
+	}
+	return ret, nil
+}
+
+func CheckCollations(x *xorm.Engine) (*CheckCollationsResult, error) {
+	dbTables, err := x.DBMetas()
+	if err != nil {
+		return nil, err
+	}
+
+	res := &CheckCollationsResult{
+		ExistingTableNumber: len(dbTables),
+		CollationEquals:     func(a, b string) bool { return a == b },
+	}
+
+	var candidateCollations []string
+	if x.Dialect().URI().DBType == schemas.MYSQL {
+		if _, err = x.SQL("SELECT @@collation_database").Get(&res.DatabaseCollation); err != nil {
+			return nil, err
+		}
+		res.IsCollationCaseSensitive = func(s string) bool {
+			return s == "utf8mb4_bin" || strings.HasSuffix(s, "_as_cs")
+		}
+		candidateCollations = []string{"utf8mb4_0900_as_cs", "uca1400_as_cs", "utf8mb4_bin"}
+		res.AvailableCollation, err = findAvailableCollationsMySQL(x)
+		if err != nil {
+			return nil, err
+		}
+		res.CollationEquals = func(a, b string) bool {
+			// MariaDB adds the "utf8mb4_" prefix, eg: "utf8mb4_uca1400_as_cs", but not the name "uca1400_as_cs" in "SHOW COLLATION"
+			// At the moment, it's safe to ignore the database difference, just trim the prefix and compare. It could be fixed easily if there is any problem in the future.
+			return a == b || strings.TrimPrefix(a, "utf8mb4_") == strings.TrimPrefix(b, "utf8mb4_")
+		}
+	} else {
+		return nil, nil
+	}
+
+	if res.DatabaseCollation == "" {
+		return nil, errors.New("unable to get collation for current database")
+	}
+
+	res.ExpectedCollation = setting.Database.CharsetCollation
+	if res.ExpectedCollation == "" {
+		for _, collation := range candidateCollations {
+			if res.AvailableCollation.Contains(collation) {
+				res.ExpectedCollation = collation
+				break
+			}
+		}
+	}
+
+	if res.ExpectedCollation == "" {
+		return nil, errors.New("unable to find a suitable collation for current database")
+	}
+
+	allColumnsMatchExpected := true
+	allColumnsMatchDatabase := true
+	for _, table := range dbTables {
+		for _, col := range table.Columns() {
+			if col.Collation != "" {
+				allColumnsMatchExpected = allColumnsMatchExpected && res.CollationEquals(col.Collation, res.ExpectedCollation)
+				allColumnsMatchDatabase = allColumnsMatchDatabase && res.CollationEquals(col.Collation, res.DatabaseCollation)
+				if !res.IsCollationCaseSensitive(col.Collation) || !res.CollationEquals(col.Collation, res.DatabaseCollation) {
+					res.InconsistentCollationColumns = append(res.InconsistentCollationColumns, fmt.Sprintf("%s.%s", table.Name, col.Name))
+				}
+			}
+		}
+	}
+	// if all columns match expected collation or all match database collation, then it could also be considered as "consistent"
+	if allColumnsMatchExpected || allColumnsMatchDatabase {
+		res.InconsistentCollationColumns = nil
+	}
+	return res, nil
+}
+
+func CheckCollationsDefaultEngine() (*CheckCollationsResult, error) {
+	return CheckCollations(x)
+}
+
+func alterDatabaseCollation(x *xorm.Engine, collation string) error {
+	if x.Dialect().URI().DBType == schemas.MYSQL {
+		_, err := x.Exec("ALTER DATABASE CHARACTER SET utf8mb4 COLLATE " + collation)
+		return err
+	}
+	return errors.New("unsupported database type")
+}
+
+// preprocessDatabaseCollation checks database & table column collation, and alter the database collation if needed
+func preprocessDatabaseCollation(x *xorm.Engine) {
+	r, err := CheckCollations(x)
+	if err != nil {
+		log.Error("Failed to check database collation: %v", err)
+	}
+	if r == nil {
+		return // no check result means the database doesn't need to do such check/process (at the moment ....)
+	}
+
+	// try to alter database collation to expected if the database is empty, it might fail in some cases (and it isn't necessary to succeed)
+	// at the moment.
+	if !r.CollationEquals(r.DatabaseCollation, r.ExpectedCollation) && r.ExistingTableNumber == 0 {
+		if err = alterDatabaseCollation(x, r.ExpectedCollation); err != nil {
+			log.Error("Failed to change database collation to %q: %v", r.ExpectedCollation, err)
+		} else {
+			if r, err = CheckCollations(x); err != nil {
+				log.Error("Failed to check database collation again after altering: %v", err) // impossible case
+				return
+			}
+			log.Warn("Current database has been altered to use collation %q", r.DatabaseCollation)
+		}
+	}
+
+	// check column collation, and show warning/error to end users -- no need to fatal, do not block the startup
+	if !r.IsCollationCaseSensitive(r.DatabaseCollation) {
+		log.Warn("Current database is using a case-insensitive collation %q, although Forgejo could work with it, there might be some rare cases which don't work as expected.", r.DatabaseCollation)
+	}
+
+	if len(r.InconsistentCollationColumns) > 0 {
+		log.Error("There are %d table columns using inconsistent collation, they should use %q. Please go to admin panel Self Check page", len(r.InconsistentCollationColumns), r.DatabaseCollation)
+	}
+}
diff --git a/models/db/common.go b/models/db/common.go
new file mode 100644
index 0000000..f3fd3e7
--- /dev/null
+++ b/models/db/common.go
@@ -0,0 +1,53 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"strings"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// BuildCaseInsensitiveLike returns a condition to check if the given value is like the given key case-insensitively.
+// Handles especially SQLite correctly as UPPER there only transforms ASCII letters.
+func BuildCaseInsensitiveLike(key, value string) builder.Cond {
+	if setting.Database.Type.IsSQLite3() {
+		return builder.Like{"UPPER(" + key + ")", util.ToUpperASCII(value)}
+	}
+	return builder.Like{"UPPER(" + key + ")", strings.ToUpper(value)}
+}
+
+// BuildCaseInsensitiveIn returns a condition to check if the given value is in the given values case-insensitively.
+// Handles especially SQLite correctly as UPPER there only transforms ASCII letters.
+func BuildCaseInsensitiveIn(key string, values []string) builder.Cond {
+	uppers := make([]string, 0, len(values))
+	if setting.Database.Type.IsSQLite3() {
+		for _, value := range values {
+			uppers = append(uppers, util.ToUpperASCII(value))
+		}
+	} else {
+		for _, value := range values {
+			uppers = append(uppers, strings.ToUpper(value))
+		}
+	}
+
+	return builder.In("UPPER("+key+")", uppers)
+}
+
+// BuilderDialect returns the xorm.Builder dialect of the engine
+func BuilderDialect() string {
+	switch {
+	case setting.Database.Type.IsMySQL():
+		return builder.MYSQL
+	case setting.Database.Type.IsSQLite3():
+		return builder.SQLITE
+	case setting.Database.Type.IsPostgreSQL():
+		return builder.POSTGRES
+	default:
+		return ""
+	}
+}
diff --git a/models/db/consistency.go b/models/db/consistency.go
new file mode 100644
index 0000000..d19732c
--- /dev/null
+++ b/models/db/consistency.go
@@ -0,0 +1,31 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+
+	"xorm.io/builder"
+)
+
+// CountOrphanedObjects count subjects with have no existing refobject anymore
+func CountOrphanedObjects(ctx context.Context, subject, refobject, joinCond string) (int64, error) {
+	return GetEngine(ctx).
+		Table("`"+subject+"`").
+		Join("LEFT", "`"+refobject+"`", joinCond).
+		Where(builder.IsNull{"`" + refobject + "`.id"}).
+		Select("COUNT(`" + subject + "`.`id`)").
+		Count()
+}
+
+// DeleteOrphanedObjects delete subjects with have no existing refobject anymore
+func DeleteOrphanedObjects(ctx context.Context, subject, refobject, joinCond string) error {
+	subQuery := builder.Select("`"+subject+"`.id").
+		From("`"+subject+"`").
+		Join("LEFT", "`"+refobject+"`", joinCond).
+		Where(builder.IsNull{"`" + refobject + "`.id"})
+	b := builder.Delete(builder.In("id", subQuery)).From("`" + subject + "`")
+	_, err := GetEngine(ctx).Exec(b)
+	return err
+}
diff --git a/models/db/context.go b/models/db/context.go
new file mode 100644
index 0000000..43f6125
--- /dev/null
+++ b/models/db/context.go
@@ -0,0 +1,331 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+	"database/sql"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// DefaultContext is the default context to run xorm queries in
+// will be overwritten by Init with HammerContext
+var DefaultContext context.Context
+
+// contextKey is a value for use with context.WithValue.
+type contextKey struct {
+	name string
+}
+
+// enginedContextKey is a context key. It is used with context.Value() to get the current Engined for the context
+var (
+	enginedContextKey         = &contextKey{"engined"}
+	_                 Engined = &Context{}
+)
+
+// Context represents a db context
+type Context struct {
+	context.Context
+	e           Engine
+	transaction bool
+}
+
+func newContext(ctx context.Context, e Engine, transaction bool) *Context {
+	return &Context{
+		Context:     ctx,
+		e:           e,
+		transaction: transaction,
+	}
+}
+
+// InTransaction if context is in a transaction
+func (ctx *Context) InTransaction() bool {
+	return ctx.transaction
+}
+
+// Engine returns db engine
+func (ctx *Context) Engine() Engine {
+	return ctx.e
+}
+
+// Value shadows Value for context.Context but allows us to get ourselves and an Engined object
+func (ctx *Context) Value(key any) any {
+	if key == enginedContextKey {
+		return ctx
+	}
+	return ctx.Context.Value(key)
+}
+
+// WithContext returns this engine tied to this context
+func (ctx *Context) WithContext(other context.Context) *Context {
+	return newContext(ctx, ctx.e.Context(other), ctx.transaction)
+}
+
+// Engined structs provide an Engine
+type Engined interface {
+	Engine() Engine
+}
+
+// GetEngine will get a db Engine from this context or return an Engine restricted to this context
+func GetEngine(ctx context.Context) Engine {
+	if e := getEngine(ctx); e != nil {
+		return e
+	}
+	return x.Context(ctx)
+}
+
+// getEngine will get a db Engine from this context or return nil
+func getEngine(ctx context.Context) Engine {
+	if engined, ok := ctx.(Engined); ok {
+		return engined.Engine()
+	}
+	enginedInterface := ctx.Value(enginedContextKey)
+	if enginedInterface != nil {
+		return enginedInterface.(Engined).Engine()
+	}
+	return nil
+}
+
+// Committer represents an interface to Commit or Close the Context
+type Committer interface {
+	Commit() error
+	Close() error
+}
+
+// halfCommitter is a wrapper of Committer.
+// It can be closed early, but can't be committed early, it is useful for reusing a transaction.
+type halfCommitter struct {
+	committer Committer
+	committed bool
+}
+
+func (c *halfCommitter) Commit() error {
+	c.committed = true
+	// should do nothing, and the parent committer will commit later
+	return nil
+}
+
+func (c *halfCommitter) Close() error {
+	if c.committed {
+		// it's "commit and close", should do nothing, and the parent committer will commit later
+		return nil
+	}
+
+	// it's "rollback and close", let the parent committer rollback right now
+	return c.committer.Close()
+}
+
+// TxContext represents a transaction Context,
+// it will reuse the existing transaction in the parent context or create a new one.
+// Some tips to use:
+//
+//	1 It's always recommended to use `WithTx` in new code instead of `TxContext`, since `WithTx` will handle the transaction automatically.
+//	2. To maintain the old code which uses `TxContext`:
+//	  a. Always call `Close()` before returning regardless of whether `Commit()` has been called.
+//	  b. Always call `Commit()` before returning if there are no errors, even if the code did not change any data.
+//	  c. Remember the `Committer` will be a halfCommitter when a transaction is being reused.
+//	     So calling `Commit()` will do nothing, but calling `Close()` without calling `Commit()` will rollback the transaction.
+//	     And all operations submitted by the caller stack will be rollbacked as well, not only the operations in the current function.
+//	  d. It doesn't mean rollback is forbidden, but always do it only when there is an error, and you do want to rollback.
+func TxContext(parentCtx context.Context) (*Context, Committer, error) {
+	if sess, ok := inTransaction(parentCtx); ok {
+		return newContext(parentCtx, sess, true), &halfCommitter{committer: sess}, nil
+	}
+
+	sess := x.NewSession()
+	if err := sess.Begin(); err != nil {
+		sess.Close()
+		return nil, nil, err
+	}
+
+	return newContext(DefaultContext, sess, true), sess, nil
+}
+
+// WithTx represents executing database operations on a transaction, if the transaction exist,
+// this function will reuse it otherwise will create a new one and close it when finished.
+func WithTx(parentCtx context.Context, f func(ctx context.Context) error) error {
+	if sess, ok := inTransaction(parentCtx); ok {
+		err := f(newContext(parentCtx, sess, true))
+		if err != nil {
+			// rollback immediately, in case the caller ignores returned error and tries to commit the transaction.
+			_ = sess.Close()
+		}
+		return err
+	}
+	return txWithNoCheck(parentCtx, f)
+}
+
+func txWithNoCheck(parentCtx context.Context, f func(ctx context.Context) error) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := f(newContext(parentCtx, sess, true)); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
+
+// Insert inserts records into database
+func Insert(ctx context.Context, beans ...any) error {
+	_, err := GetEngine(ctx).Insert(beans...)
+	return err
+}
+
+// Exec executes a sql with args
+func Exec(ctx context.Context, sqlAndArgs ...any) (sql.Result, error) {
+	return GetEngine(ctx).Exec(sqlAndArgs...)
+}
+
+func Get[T any](ctx context.Context, cond builder.Cond) (object *T, exist bool, err error) {
+	if !cond.IsValid() {
+		panic("cond is invalid in db.Get(ctx, cond). This should not be possible.")
+	}
+
+	var bean T
+	has, err := GetEngine(ctx).Where(cond).NoAutoCondition().Get(&bean)
+	if err != nil {
+		return nil, false, err
+	} else if !has {
+		return nil, false, nil
+	}
+	return &bean, true, nil
+}
+
+func GetByID[T any](ctx context.Context, id int64) (object *T, exist bool, err error) {
+	var bean T
+	has, err := GetEngine(ctx).ID(id).NoAutoCondition().Get(&bean)
+	if err != nil {
+		return nil, false, err
+	} else if !has {
+		return nil, false, nil
+	}
+	return &bean, true, nil
+}
+
+func Exist[T any](ctx context.Context, cond builder.Cond) (bool, error) {
+	if !cond.IsValid() {
+		panic("cond is invalid in db.Exist(ctx, cond). This should not be possible.")
+	}
+
+	var bean T
+	return GetEngine(ctx).Where(cond).NoAutoCondition().Exist(&bean)
+}
+
+func ExistByID[T any](ctx context.Context, id int64) (bool, error) {
+	var bean T
+	return GetEngine(ctx).ID(id).NoAutoCondition().Exist(&bean)
+}
+
+// DeleteByID deletes the given bean with the given ID
+func DeleteByID[T any](ctx context.Context, id int64) (int64, error) {
+	var bean T
+	return GetEngine(ctx).ID(id).NoAutoCondition().NoAutoTime().Delete(&bean)
+}
+
+func DeleteByIDs[T any](ctx context.Context, ids ...int64) error {
+	if len(ids) == 0 {
+		return nil
+	}
+
+	var bean T
+	_, err := GetEngine(ctx).In("id", ids).NoAutoCondition().NoAutoTime().Delete(&bean)
+	return err
+}
+
+func Delete[T any](ctx context.Context, opts FindOptions) (int64, error) {
+	if opts == nil || !opts.ToConds().IsValid() {
+		panic("opts are empty or invalid in db.Delete(ctx, opts). This should not be possible.")
+	}
+
+	var bean T
+	return GetEngine(ctx).Where(opts.ToConds()).NoAutoCondition().NoAutoTime().Delete(&bean)
+}
+
+// DeleteByBean deletes all records according non-empty fields of the bean as conditions.
+func DeleteByBean(ctx context.Context, bean any) (int64, error) {
+	return GetEngine(ctx).Delete(bean)
+}
+
+// FindIDs finds the IDs for the given table name satisfying the given condition
+// By passing a different value than "id" for "idCol", you can query for foreign IDs, i.e. the repo IDs which satisfy the condition
+func FindIDs(ctx context.Context, tableName, idCol string, cond builder.Cond) ([]int64, error) {
+	ids := make([]int64, 0, 10)
+	if err := GetEngine(ctx).Table(tableName).
+		Cols(idCol).
+		Where(cond).
+		Find(&ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// DecrByIDs decreases the given column for entities of the "bean" type with one of the given ids by one
+// Timestamps of the entities won't be updated
+func DecrByIDs(ctx context.Context, ids []int64, decrCol string, bean any) error {
+	_, err := GetEngine(ctx).Decr(decrCol).In("id", ids).NoAutoCondition().NoAutoTime().Update(bean)
+	return err
+}
+
+// DeleteBeans deletes all given beans, beans must contain delete conditions.
+func DeleteBeans(ctx context.Context, beans ...any) (err error) {
+	e := GetEngine(ctx)
+	for i := range beans {
+		if _, err = e.Delete(beans[i]); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// TruncateBeans deletes all given beans, beans may contain delete conditions.
+func TruncateBeans(ctx context.Context, beans ...any) (err error) {
+	e := GetEngine(ctx)
+	for i := range beans {
+		if _, err = e.Truncate(beans[i]); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// CountByBean counts the number of database records according non-empty fields of the bean as conditions.
+func CountByBean(ctx context.Context, bean any) (int64, error) {
+	return GetEngine(ctx).Count(bean)
+}
+
+// TableName returns the table name according a bean object
+func TableName(bean any) string {
+	return x.TableName(bean)
+}
+
+// InTransaction returns true if the engine is in a transaction otherwise return false
+func InTransaction(ctx context.Context) bool {
+	_, ok := inTransaction(ctx)
+	return ok
+}
+
+func inTransaction(ctx context.Context) (*xorm.Session, bool) {
+	e := getEngine(ctx)
+	if e == nil {
+		return nil, false
+	}
+
+	switch t := e.(type) {
+	case *xorm.Engine:
+		return nil, false
+	case *xorm.Session:
+		if t.IsInTx() {
+			return t, true
+		}
+		return nil, false
+	default:
+		return nil, false
+	}
+}
diff --git a/models/db/context_committer_test.go b/models/db/context_committer_test.go
new file mode 100644
index 0000000..38e91f2
--- /dev/null
+++ b/models/db/context_committer_test.go
@@ -0,0 +1,102 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db // it's not db_test, because this file is for testing the private type halfCommitter
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type MockCommitter struct {
+	wants []string
+	gots  []string
+}
+
+func NewMockCommitter(wants ...string) *MockCommitter {
+	return &MockCommitter{
+		wants: wants,
+	}
+}
+
+func (c *MockCommitter) Commit() error {
+	c.gots = append(c.gots, "commit")
+	return nil
+}
+
+func (c *MockCommitter) Close() error {
+	c.gots = append(c.gots, "close")
+	return nil
+}
+
+func (c *MockCommitter) Assert(t *testing.T) {
+	assert.Equal(t, c.wants, c.gots, "want operations %v, but got %v", c.wants, c.gots)
+}
+
+func Test_halfCommitter(t *testing.T) {
+	/*
+		Do something like:
+
+		ctx, committer, err := db.TxContext(db.DefaultContext)
+		if err != nil {
+			return nil
+		}
+		defer committer.Close()
+
+		// ...
+
+		if err != nil {
+			return nil
+		}
+
+		// ...
+
+		return committer.Commit()
+	*/
+
+	testWithCommitter := func(committer Committer, f func(committer Committer) error) {
+		if err := f(&halfCommitter{committer: committer}); err == nil {
+			committer.Commit()
+		}
+		committer.Close()
+	}
+
+	t.Run("commit and close", func(t *testing.T) {
+		mockCommitter := NewMockCommitter("commit", "close")
+
+		testWithCommitter(mockCommitter, func(committer Committer) error {
+			defer committer.Close()
+			return committer.Commit()
+		})
+
+		mockCommitter.Assert(t)
+	})
+
+	t.Run("rollback and close", func(t *testing.T) {
+		mockCommitter := NewMockCommitter("close", "close")
+
+		testWithCommitter(mockCommitter, func(committer Committer) error {
+			defer committer.Close()
+			if true {
+				return fmt.Errorf("error")
+			}
+			return committer.Commit()
+		})
+
+		mockCommitter.Assert(t)
+	})
+
+	t.Run("close and commit", func(t *testing.T) {
+		mockCommitter := NewMockCommitter("close", "close")
+
+		testWithCommitter(mockCommitter, func(committer Committer) error {
+			committer.Close()
+			committer.Commit()
+			return fmt.Errorf("error")
+		})
+
+		mockCommitter.Assert(t)
+	})
+}
diff --git a/models/db/context_test.go b/models/db/context_test.go
new file mode 100644
index 0000000..855f360
--- /dev/null
+++ b/models/db/context_test.go
@@ -0,0 +1,87 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestInTransaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.False(t, db.InTransaction(db.DefaultContext))
+	require.NoError(t, db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		assert.True(t, db.InTransaction(ctx))
+		return nil
+	}))
+
+	ctx, committer, err := db.TxContext(db.DefaultContext)
+	require.NoError(t, err)
+	defer committer.Close()
+	assert.True(t, db.InTransaction(ctx))
+	require.NoError(t, db.WithTx(ctx, func(ctx context.Context) error {
+		assert.True(t, db.InTransaction(ctx))
+		return nil
+	}))
+}
+
+func TestTxContext(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	{ // create new transaction
+		ctx, committer, err := db.TxContext(db.DefaultContext)
+		require.NoError(t, err)
+		assert.True(t, db.InTransaction(ctx))
+		require.NoError(t, committer.Commit())
+	}
+
+	{ // reuse the transaction created by TxContext and commit it
+		ctx, committer, err := db.TxContext(db.DefaultContext)
+		engine := db.GetEngine(ctx)
+		require.NoError(t, err)
+		assert.True(t, db.InTransaction(ctx))
+		{
+			ctx, committer, err := db.TxContext(ctx)
+			require.NoError(t, err)
+			assert.True(t, db.InTransaction(ctx))
+			assert.Equal(t, engine, db.GetEngine(ctx))
+			require.NoError(t, committer.Commit())
+		}
+		require.NoError(t, committer.Commit())
+	}
+
+	{ // reuse the transaction created by TxContext and close it
+		ctx, committer, err := db.TxContext(db.DefaultContext)
+		engine := db.GetEngine(ctx)
+		require.NoError(t, err)
+		assert.True(t, db.InTransaction(ctx))
+		{
+			ctx, committer, err := db.TxContext(ctx)
+			require.NoError(t, err)
+			assert.True(t, db.InTransaction(ctx))
+			assert.Equal(t, engine, db.GetEngine(ctx))
+			require.NoError(t, committer.Close())
+		}
+		require.NoError(t, committer.Close())
+	}
+
+	{ // reuse the transaction created by WithTx
+		require.NoError(t, db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+			assert.True(t, db.InTransaction(ctx))
+			{
+				ctx, committer, err := db.TxContext(ctx)
+				require.NoError(t, err)
+				assert.True(t, db.InTransaction(ctx))
+				require.NoError(t, committer.Commit())
+			}
+			return nil
+		}))
+	}
+}
diff --git a/models/db/convert.go b/models/db/convert.go
new file mode 100644
index 0000000..956e17d
--- /dev/null
+++ b/models/db/convert.go
@@ -0,0 +1,64 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+// ConvertDatabaseTable converts database and tables from utf8 to utf8mb4 if it's mysql and set ROW_FORMAT=dynamic
+func ConvertDatabaseTable() error {
+	if x.Dialect().URI().DBType != schemas.MYSQL {
+		return nil
+	}
+
+	r, err := CheckCollations(x)
+	if err != nil {
+		return err
+	}
+
+	databaseName := strings.SplitN(setting.Database.Name, "?", 2)[0]
+	_, err = x.Exec(fmt.Sprintf("ALTER DATABASE `%s` CHARACTER SET utf8mb4 COLLATE %s", databaseName, r.ExpectedCollation))
+	if err != nil {
+		return err
+	}
+
+	tables, err := x.DBMetas()
+	if err != nil {
+		return err
+	}
+	for _, table := range tables {
+		if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` ROW_FORMAT=dynamic", table.Name)); err != nil {
+			return err
+		}
+
+		if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` CONVERT TO CHARACTER SET utf8mb4 COLLATE %s", table.Name, r.ExpectedCollation)); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// Cell2Int64 converts a xorm.Cell type to int64,
+// and handles possible irregular cases.
+func Cell2Int64(val xorm.Cell) int64 {
+	switch (*val).(type) {
+	case []uint8:
+		log.Trace("Cell2Int64 ([]uint8): %v", *val)
+
+		v, _ := strconv.ParseInt(string((*val).([]uint8)), 10, 64)
+		return v
+	default:
+		return (*val).(int64)
+	}
+}
diff --git a/models/db/engine.go b/models/db/engine.go
new file mode 100755
index 0000000..6164959
--- /dev/null
+++ b/models/db/engine.go
@@ -0,0 +1,354 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"io"
+	"reflect"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/contexts"
+	"xorm.io/xorm/names"
+	"xorm.io/xorm/schemas"
+
+	_ "github.com/go-sql-driver/mysql" // Needed for the MySQL driver
+	_ "github.com/lib/pq"              // Needed for the Postgresql driver
+)
+
+var (
+	x         *xorm.Engine
+	tables    []any
+	initFuncs []func() error
+)
+
+// Engine represents a xorm engine or session.
+type Engine interface {
+	Table(tableNameOrBean any) *xorm.Session
+	Count(...any) (int64, error)
+	Decr(column string, arg ...any) *xorm.Session
+	Delete(...any) (int64, error)
+	Truncate(...any) (int64, error)
+	Exec(...any) (sql.Result, error)
+	Find(any, ...any) error
+	Get(beans ...any) (bool, error)
+	ID(any) *xorm.Session
+	In(string, ...any) *xorm.Session
+	Incr(column string, arg ...any) *xorm.Session
+	Insert(...any) (int64, error)
+	Iterate(any, xorm.IterFunc) error
+	IsTableExist(any) (bool, error)
+	Join(joinOperator string, tablename, condition any, args ...any) *xorm.Session
+	SQL(any, ...any) *xorm.Session
+	Where(any, ...any) *xorm.Session
+	Asc(colNames ...string) *xorm.Session
+	Desc(colNames ...string) *xorm.Session
+	Limit(limit int, start ...int) *xorm.Session
+	NoAutoTime() *xorm.Session
+	SumInt(bean any, columnName string) (res int64, err error)
+	Sync(...any) error
+	Select(string) *xorm.Session
+	SetExpr(string, any) *xorm.Session
+	NotIn(string, ...any) *xorm.Session
+	OrderBy(any, ...any) *xorm.Session
+	Exist(...any) (bool, error)
+	Distinct(...string) *xorm.Session
+	Query(...any) ([]map[string][]byte, error)
+	Cols(...string) *xorm.Session
+	Context(ctx context.Context) *xorm.Session
+	Ping() error
+}
+
+// TableInfo returns table's information via an object
+func TableInfo(v any) (*schemas.Table, error) {
+	return x.TableInfo(v)
+}
+
+// DumpTables dump tables information
+func DumpTables(tables []*schemas.Table, w io.Writer, tp ...schemas.DBType) error {
+	return x.DumpTables(tables, w, tp...)
+}
+
+// RegisterModel registers model, if initfunc provided, it will be invoked after data model sync
+func RegisterModel(bean any, initFunc ...func() error) {
+	tables = append(tables, bean)
+	if len(initFuncs) > 0 && initFunc[0] != nil {
+		initFuncs = append(initFuncs, initFunc[0])
+	}
+}
+
+func init() {
+	gonicNames := []string{"SSL", "UID"}
+	for _, name := range gonicNames {
+		names.LintGonicMapper[name] = true
+	}
+}
+
+// newXORMEngine returns a new XORM engine from the configuration
+func newXORMEngine() (*xorm.Engine, error) {
+	connStr, err := setting.DBConnStr()
+	if err != nil {
+		return nil, err
+	}
+
+	var engine *xorm.Engine
+
+	if setting.Database.Type.IsPostgreSQL() && len(setting.Database.Schema) > 0 {
+		// OK whilst we sort out our schema issues - create a schema aware postgres
+		registerPostgresSchemaDriver()
+		engine, err = xorm.NewEngine("postgresschema", connStr)
+	} else {
+		engine, err = xorm.NewEngine(setting.Database.Type.String(), connStr)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+	if setting.Database.Type.IsMySQL() {
+		engine.Dialect().SetParams(map[string]string{"rowFormat": "DYNAMIC"})
+	}
+	engine.SetSchema(setting.Database.Schema)
+	return engine, nil
+}
+
+// SyncAllTables sync the schemas of all tables, is required by unit test code
+func SyncAllTables() error {
+	_, err := x.StoreEngine("InnoDB").SyncWithOptions(xorm.SyncOptions{
+		WarnIfDatabaseColumnMissed: true,
+	}, tables...)
+	return err
+}
+
+// InitEngine initializes the xorm.Engine and sets it as db.DefaultContext
+func InitEngine(ctx context.Context) error {
+	xormEngine, err := newXORMEngine()
+	if err != nil {
+		return fmt.Errorf("failed to connect to database: %w", err)
+	}
+
+	xormEngine.SetMapper(names.GonicMapper{})
+	// WARNING: for serv command, MUST remove the output to os.stdout,
+	// so use log file to instead print to stdout.
+	xormEngine.SetLogger(NewXORMLogger(setting.Database.LogSQL))
+	xormEngine.ShowSQL(setting.Database.LogSQL)
+	xormEngine.SetMaxOpenConns(setting.Database.MaxOpenConns)
+	xormEngine.SetMaxIdleConns(setting.Database.MaxIdleConns)
+	xormEngine.SetConnMaxLifetime(setting.Database.ConnMaxLifetime)
+	xormEngine.SetConnMaxIdleTime(setting.Database.ConnMaxIdleTime)
+	xormEngine.SetDefaultContext(ctx)
+
+	if setting.Database.SlowQueryThreshold > 0 {
+		xormEngine.AddHook(&SlowQueryHook{
+			Treshold: setting.Database.SlowQueryThreshold,
+			Logger:   log.GetLogger("xorm"),
+		})
+	}
+
+	errorLogger := log.GetLogger("xorm")
+	if setting.IsInTesting {
+		errorLogger = log.GetLogger(log.DEFAULT)
+	}
+
+	xormEngine.AddHook(&ErrorQueryHook{
+		Logger: errorLogger,
+	})
+
+	SetDefaultEngine(ctx, xormEngine)
+	return nil
+}
+
+// SetDefaultEngine sets the default engine for db
+func SetDefaultEngine(ctx context.Context, eng *xorm.Engine) {
+	x = eng
+	DefaultContext = &Context{
+		Context: ctx,
+		e:       x,
+	}
+}
+
+// UnsetDefaultEngine closes and unsets the default engine
+// We hope the SetDefaultEngine and UnsetDefaultEngine can be paired, but it's impossible now,
+// there are many calls to InitEngine -> SetDefaultEngine directly to overwrite the `x` and DefaultContext without close
+// Global database engine related functions are all racy and there is no graceful close right now.
+func UnsetDefaultEngine() {
+	if x != nil {
+		_ = x.Close()
+		x = nil
+	}
+	DefaultContext = nil
+}
+
+// InitEngineWithMigration initializes a new xorm.Engine and sets it as the db.DefaultContext
+// This function must never call .Sync() if the provided migration function fails.
+// When called from the "doctor" command, the migration function is a version check
+// that prevents the doctor from fixing anything in the database if the migration level
+// is different from the expected value.
+func InitEngineWithMigration(ctx context.Context, migrateFunc func(*xorm.Engine) error) (err error) {
+	if err = InitEngine(ctx); err != nil {
+		return err
+	}
+
+	if err = x.Ping(); err != nil {
+		return err
+	}
+
+	preprocessDatabaseCollation(x)
+
+	// We have to run migrateFunc here in case the user is re-running installation on a previously created DB.
+	// If we do not then table schemas will be changed and there will be conflicts when the migrations run properly.
+	//
+	// Installation should only be being re-run if users want to recover an old database.
+	// However, we should think carefully about should we support re-install on an installed instance,
+	// as there may be other problems due to secret reinitialization.
+	if err = migrateFunc(x); err != nil {
+		return fmt.Errorf("migrate: %w", err)
+	}
+
+	if err = SyncAllTables(); err != nil {
+		return fmt.Errorf("sync database struct error: %w", err)
+	}
+
+	for _, initFunc := range initFuncs {
+		if err := initFunc(); err != nil {
+			return fmt.Errorf("initFunc failed: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// NamesToBean return a list of beans or an error
+func NamesToBean(names ...string) ([]any, error) {
+	beans := []any{}
+	if len(names) == 0 {
+		beans = append(beans, tables...)
+		return beans, nil
+	}
+	// Need to map provided names to beans...
+	beanMap := make(map[string]any)
+	for _, bean := range tables {
+		beanMap[strings.ToLower(reflect.Indirect(reflect.ValueOf(bean)).Type().Name())] = bean
+		beanMap[strings.ToLower(x.TableName(bean))] = bean
+		beanMap[strings.ToLower(x.TableName(bean, true))] = bean
+	}
+
+	gotBean := make(map[any]bool)
+	for _, name := range names {
+		bean, ok := beanMap[strings.ToLower(strings.TrimSpace(name))]
+		if !ok {
+			return nil, fmt.Errorf("no table found that matches: %s", name)
+		}
+		if !gotBean[bean] {
+			beans = append(beans, bean)
+			gotBean[bean] = true
+		}
+	}
+	return beans, nil
+}
+
+// DumpDatabase dumps all data from database according the special database SQL syntax to file system.
+func DumpDatabase(filePath, dbType string) error {
+	var tbs []*schemas.Table
+	for _, t := range tables {
+		t, err := x.TableInfo(t)
+		if err != nil {
+			return err
+		}
+		tbs = append(tbs, t)
+	}
+
+	type Version struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Version int64
+	}
+	t, err := x.TableInfo(&Version{})
+	if err != nil {
+		return err
+	}
+	tbs = append(tbs, t)
+
+	if len(dbType) > 0 {
+		return x.DumpTablesToFile(tbs, filePath, schemas.DBType(dbType))
+	}
+	return x.DumpTablesToFile(tbs, filePath)
+}
+
+// MaxBatchInsertSize returns the table's max batch insert size
+func MaxBatchInsertSize(bean any) int {
+	t, err := x.TableInfo(bean)
+	if err != nil {
+		return 50
+	}
+	return 999 / len(t.ColumnsSeq())
+}
+
+// IsTableNotEmpty returns true if table has at least one record
+func IsTableNotEmpty(beanOrTableName any) (bool, error) {
+	return x.Table(beanOrTableName).Exist()
+}
+
+// DeleteAllRecords will delete all the records of this table
+func DeleteAllRecords(tableName string) error {
+	_, err := x.Exec(fmt.Sprintf("DELETE FROM %s", tableName))
+	return err
+}
+
+// GetMaxID will return max id of the table
+func GetMaxID(beanOrTableName any) (maxID int64, err error) {
+	_, err = x.Select("MAX(id)").Table(beanOrTableName).Get(&maxID)
+	return maxID, err
+}
+
+func SetLogSQL(ctx context.Context, on bool) {
+	e := GetEngine(ctx)
+	if x, ok := e.(*xorm.Engine); ok {
+		x.ShowSQL(on)
+	} else if sess, ok := e.(*xorm.Session); ok {
+		sess.Engine().ShowSQL(on)
+	}
+}
+
+type SlowQueryHook struct {
+	Treshold time.Duration
+	Logger   log.Logger
+}
+
+var _ contexts.Hook = &SlowQueryHook{}
+
+func (SlowQueryHook) BeforeProcess(c *contexts.ContextHook) (context.Context, error) {
+	return c.Ctx, nil
+}
+
+func (h *SlowQueryHook) AfterProcess(c *contexts.ContextHook) error {
+	if c.ExecuteTime >= h.Treshold {
+		h.Logger.Log(8, log.WARN, "[Slow SQL Query] %s %v - %v", c.SQL, c.Args, c.ExecuteTime)
+	}
+	return nil
+}
+
+type ErrorQueryHook struct {
+	Logger log.Logger
+}
+
+var _ contexts.Hook = &ErrorQueryHook{}
+
+func (ErrorQueryHook) BeforeProcess(c *contexts.ContextHook) (context.Context, error) {
+	return c.Ctx, nil
+}
+
+func (h *ErrorQueryHook) AfterProcess(c *contexts.ContextHook) error {
+	if c.Err != nil && !errors.Is(c.Err, context.Canceled) {
+		h.Logger.Log(8, log.ERROR, "[Error SQL Query] %s %v - %v", c.SQL, c.Args, c.Err)
+	}
+	return nil
+}
diff --git a/models/db/engine_test.go b/models/db/engine_test.go
new file mode 100644
index 0000000..230ee3f
--- /dev/null
+++ b/models/db/engine_test.go
@@ -0,0 +1,154 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"path/filepath"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	_ "code.gitea.io/gitea/cmd" // for TestPrimaryKeys
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm"
+)
+
+func TestDumpDatabase(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	dir := t.TempDir()
+
+	type Version struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Version int64
+	}
+	require.NoError(t, db.GetEngine(db.DefaultContext).Sync(new(Version)))
+
+	for _, dbType := range setting.SupportedDatabaseTypes {
+		require.NoError(t, db.DumpDatabase(filepath.Join(dir, dbType+".sql"), dbType))
+	}
+}
+
+func TestDeleteOrphanedObjects(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	countBefore, err := db.GetEngine(db.DefaultContext).Count(&issues_model.PullRequest{})
+	require.NoError(t, err)
+
+	_, err = db.GetEngine(db.DefaultContext).Insert(&issues_model.PullRequest{IssueID: 1000}, &issues_model.PullRequest{IssueID: 1001}, &issues_model.PullRequest{IssueID: 1003})
+	require.NoError(t, err)
+
+	orphaned, err := db.CountOrphanedObjects(db.DefaultContext, "pull_request", "issue", "pull_request.issue_id=issue.id")
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, orphaned)
+
+	err = db.DeleteOrphanedObjects(db.DefaultContext, "pull_request", "issue", "pull_request.issue_id=issue.id")
+	require.NoError(t, err)
+
+	countAfter, err := db.GetEngine(db.DefaultContext).Count(&issues_model.PullRequest{})
+	require.NoError(t, err)
+	assert.EqualValues(t, countBefore, countAfter)
+}
+
+func TestPrimaryKeys(t *testing.T) {
+	// Some dbs require that all tables have primary keys, see
+	//   https://github.com/go-gitea/gitea/issues/21086
+	//   https://github.com/go-gitea/gitea/issues/16802
+	// To avoid creating tables without primary key again, this test will check them.
+	// Import "code.gitea.io/gitea/cmd" to make sure each db.RegisterModel in init functions has been called.
+
+	beans, err := db.NamesToBean()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	whitelist := map[string]string{
+		"the_table_name_to_skip_checking": "Write a note here to explain why",
+		"forgejo_sem_ver":                 "seriously dude",
+	}
+
+	for _, bean := range beans {
+		table, err := db.TableInfo(bean)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if why, ok := whitelist[table.Name]; ok {
+			t.Logf("ignore %q because %q", table.Name, why)
+			continue
+		}
+		if len(table.PrimaryKeys) == 0 {
+			t.Errorf("table %q has no primary key", table.Name)
+		}
+	}
+}
+
+func TestSlowQuery(t *testing.T) {
+	lc, cleanup := test.NewLogChecker("slow-query", log.INFO)
+	lc.StopMark("[Slow SQL Query]")
+	defer cleanup()
+
+	e := db.GetEngine(db.DefaultContext)
+	engine, ok := e.(*xorm.Engine)
+	assert.True(t, ok)
+
+	// It's not possible to clean this up with XORM, but it's luckily not harmful
+	// to leave around.
+	engine.AddHook(&db.SlowQueryHook{
+		Treshold: time.Second * 10,
+		Logger:   log.GetLogger("slow-query"),
+	})
+
+	// NOOP query.
+	e.Exec("SELECT 1 WHERE false;")
+
+	_, stopped := lc.Check(100 * time.Millisecond)
+	assert.False(t, stopped)
+
+	engine.AddHook(&db.SlowQueryHook{
+		Treshold: 0, // Every query should be logged.
+		Logger:   log.GetLogger("slow-query"),
+	})
+
+	// NOOP query.
+	e.Exec("SELECT 1 WHERE false;")
+
+	_, stopped = lc.Check(100 * time.Millisecond)
+	assert.True(t, stopped)
+}
+
+func TestErrorQuery(t *testing.T) {
+	lc, cleanup := test.NewLogChecker("error-query", log.INFO)
+	lc.StopMark("[Error SQL Query]")
+	defer cleanup()
+
+	e := db.GetEngine(db.DefaultContext)
+	engine, ok := e.(*xorm.Engine)
+	assert.True(t, ok)
+
+	// It's not possible to clean this up with XORM, but it's luckily not harmful
+	// to leave around.
+	engine.AddHook(&db.ErrorQueryHook{
+		Logger: log.GetLogger("error-query"),
+	})
+
+	// Valid query.
+	e.Exec("SELECT 1 WHERE false;")
+
+	_, stopped := lc.Check(100 * time.Millisecond)
+	assert.False(t, stopped)
+
+	// Table doesn't exist.
+	e.Exec("SELECT column FROM table;")
+
+	_, stopped = lc.Check(100 * time.Millisecond)
+	assert.True(t, stopped)
+}
diff --git a/models/db/error.go b/models/db/error.go
new file mode 100644
index 0000000..665e970
--- /dev/null
+++ b/models/db/error.go
@@ -0,0 +1,74 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrCancelled represents an error due to context cancellation
+type ErrCancelled struct {
+	Message string
+}
+
+// IsErrCancelled checks if an error is a ErrCancelled.
+func IsErrCancelled(err error) bool {
+	_, ok := err.(ErrCancelled)
+	return ok
+}
+
+func (err ErrCancelled) Error() string {
+	return "Cancelled: " + err.Message
+}
+
+// ErrCancelledf returns an ErrCancelled for the provided format and args
+func ErrCancelledf(format string, args ...any) error {
+	return ErrCancelled{
+		fmt.Sprintf(format, args...),
+	}
+}
+
+// ErrSSHDisabled represents an "SSH disabled" error.
+type ErrSSHDisabled struct{}
+
+// IsErrSSHDisabled checks if an error is a ErrSSHDisabled.
+func IsErrSSHDisabled(err error) bool {
+	_, ok := err.(ErrSSHDisabled)
+	return ok
+}
+
+func (err ErrSSHDisabled) Error() string {
+	return "SSH is disabled"
+}
+
+// ErrNotExist represents a non-exist error.
+type ErrNotExist struct {
+	Resource string
+	ID       int64
+}
+
+// IsErrNotExist checks if an error is an ErrNotExist
+func IsErrNotExist(err error) bool {
+	_, ok := err.(ErrNotExist)
+	return ok
+}
+
+func (err ErrNotExist) Error() string {
+	name := "record"
+	if err.Resource != "" {
+		name = err.Resource
+	}
+
+	if err.ID != 0 {
+		return fmt.Sprintf("%s does not exist [id: %d]", name, err.ID)
+	}
+	return fmt.Sprintf("%s does not exist", name)
+}
+
+// Unwrap unwraps this as a ErrNotExist err
+func (err ErrNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
diff --git a/models/db/index.go b/models/db/index.go
new file mode 100644
index 0000000..259ddd6
--- /dev/null
+++ b/models/db/index.go
@@ -0,0 +1,148 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strconv"
+
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// ResourceIndex represents a resource index which could be used as issue/release and others
+// We can create different tables i.e. issue_index, release_index, etc.
+type ResourceIndex struct {
+	GroupID  int64 `xorm:"pk"`
+	MaxIndex int64 `xorm:"index"`
+}
+
+var (
+	// ErrResouceOutdated represents an error when request resource outdated
+	ErrResouceOutdated = errors.New("resource outdated")
+	// ErrGetResourceIndexFailed represents an error when resource index retries 3 times
+	ErrGetResourceIndexFailed = errors.New("get resource index failed")
+)
+
+// SyncMaxResourceIndex sync the max index with the resource
+func SyncMaxResourceIndex(ctx context.Context, tableName string, groupID, maxIndex int64) (err error) {
+	e := GetEngine(ctx)
+
+	// try to update the max_index and acquire the write-lock for the record
+	res, err := e.Exec(fmt.Sprintf("UPDATE %s SET max_index=? WHERE group_id=? AND max_index<?", tableName), maxIndex, groupID, maxIndex)
+	if err != nil {
+		return err
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		// if nothing is updated, the record might not exist or might be larger, it's safe to try to insert it again and then check whether the record exists
+		_, errIns := e.Exec(fmt.Sprintf("INSERT INTO %s (group_id, max_index) VALUES (?, ?)", tableName), groupID, maxIndex)
+		var savedIdx int64
+		has, err := e.SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id=?", tableName), groupID).Get(&savedIdx)
+		if err != nil {
+			return err
+		}
+		// if the record still doesn't exist, there must be some errors (insert error)
+		if !has {
+			if errIns == nil {
+				return errors.New("impossible error when SyncMaxResourceIndex, insert succeeded but no record is saved")
+			}
+			return errIns
+		}
+	}
+	return nil
+}
+
+func postgresGetNextResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
+	res, err := GetEngine(ctx).Query(fmt.Sprintf("INSERT INTO %s (group_id, max_index) "+
+		"VALUES (?,1) ON CONFLICT (group_id) DO UPDATE SET max_index = %s.max_index+1 RETURNING max_index",
+		tableName, tableName), groupID)
+	if err != nil {
+		return 0, err
+	}
+	if len(res) == 0 {
+		return 0, ErrGetResourceIndexFailed
+	}
+	return strconv.ParseInt(string(res[0]["max_index"]), 10, 64)
+}
+
+func mysqlGetNextResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
+	if _, err := GetEngine(ctx).Exec(fmt.Sprintf("INSERT INTO %s (group_id, max_index) "+
+		"VALUES (?,1) ON DUPLICATE KEY UPDATE max_index = max_index+1",
+		tableName), groupID); err != nil {
+		return 0, err
+	}
+
+	var idx int64
+	_, err := GetEngine(ctx).SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id = ?", tableName), groupID).Get(&idx)
+	if err != nil {
+		return 0, err
+	}
+	if idx == 0 {
+		return 0, errors.New("cannot get the correct index")
+	}
+	return idx, nil
+}
+
+// GetNextResourceIndex generates a resource index, it must run in the same transaction where the resource is created
+func GetNextResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
+	switch {
+	case setting.Database.Type.IsPostgreSQL():
+		return postgresGetNextResourceIndex(ctx, tableName, groupID)
+	case setting.Database.Type.IsMySQL():
+		return mysqlGetNextResourceIndex(ctx, tableName, groupID)
+	}
+
+	e := GetEngine(ctx)
+
+	// try to update the max_index to next value, and acquire the write-lock for the record
+	res, err := e.Exec(fmt.Sprintf("UPDATE %s SET max_index=max_index+1 WHERE group_id=?", tableName), groupID)
+	if err != nil {
+		return 0, err
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return 0, err
+	}
+	if affected == 0 {
+		// this slow path is only for the first time of creating a resource index
+		_, errIns := e.Exec(fmt.Sprintf("INSERT INTO %s (group_id, max_index) VALUES (?, 0)", tableName), groupID)
+		res, err = e.Exec(fmt.Sprintf("UPDATE %s SET max_index=max_index+1 WHERE group_id=?", tableName), groupID)
+		if err != nil {
+			return 0, err
+		}
+		affected, err = res.RowsAffected()
+		if err != nil {
+			return 0, err
+		}
+		// if the update still can not update any records, the record must not exist and there must be some errors (insert error)
+		if affected == 0 {
+			if errIns == nil {
+				return 0, errors.New("impossible error when GetNextResourceIndex, insert and update both succeeded but no record is updated")
+			}
+			return 0, errIns
+		}
+	}
+
+	// now, the new index is in database (protected by the transaction and write-lock)
+	var newIdx int64
+	has, err := e.SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id=?", tableName), groupID).Get(&newIdx)
+	if err != nil {
+		return 0, err
+	}
+	if !has {
+		return 0, errors.New("impossible error when GetNextResourceIndex, upsert succeeded but no record can be selected")
+	}
+	return newIdx, nil
+}
+
+// DeleteResourceIndex delete resource index
+func DeleteResourceIndex(ctx context.Context, tableName string, groupID int64) error {
+	_, err := Exec(ctx, fmt.Sprintf("DELETE FROM %s WHERE group_id=?", tableName), groupID)
+	return err
+}
diff --git a/models/db/index_test.go b/models/db/index_test.go
new file mode 100644
index 0000000..11fbc70
--- /dev/null
+++ b/models/db/index_test.go
@@ -0,0 +1,127 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+type TestIndex db.ResourceIndex
+
+func getCurrentResourceIndex(ctx context.Context, tableName string, groupID int64) (int64, error) {
+	e := db.GetEngine(ctx)
+	var idx int64
+	has, err := e.SQL(fmt.Sprintf("SELECT max_index FROM %s WHERE group_id=?", tableName), groupID).Get(&idx)
+	if err != nil {
+		return 0, err
+	}
+	if !has {
+		return 0, errors.New("no record")
+	}
+	return idx, nil
+}
+
+func TestSyncMaxResourceIndex(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	xe := unittest.GetXORMEngine()
+	require.NoError(t, xe.Sync(&TestIndex{}))
+
+	err := db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 51)
+	require.NoError(t, err)
+
+	// sync new max index
+	maxIndex, err := getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
+	require.NoError(t, err)
+	assert.EqualValues(t, 51, maxIndex)
+
+	// smaller index doesn't change
+	err = db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 30)
+	require.NoError(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
+	require.NoError(t, err)
+	assert.EqualValues(t, 51, maxIndex)
+
+	// larger index changes
+	err = db.SyncMaxResourceIndex(db.DefaultContext, "test_index", 10, 62)
+	require.NoError(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
+	require.NoError(t, err)
+	assert.EqualValues(t, 62, maxIndex)
+
+	// commit transaction
+	err = db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		err = db.SyncMaxResourceIndex(ctx, "test_index", 10, 73)
+		require.NoError(t, err)
+		maxIndex, err = getCurrentResourceIndex(ctx, "test_index", 10)
+		require.NoError(t, err)
+		assert.EqualValues(t, 73, maxIndex)
+		return nil
+	})
+	require.NoError(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
+	require.NoError(t, err)
+	assert.EqualValues(t, 73, maxIndex)
+
+	// rollback transaction
+	err = db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		err = db.SyncMaxResourceIndex(ctx, "test_index", 10, 84)
+		maxIndex, err = getCurrentResourceIndex(ctx, "test_index", 10)
+		require.NoError(t, err)
+		assert.EqualValues(t, 84, maxIndex)
+		return errors.New("test rollback")
+	})
+	require.Error(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 10)
+	require.NoError(t, err)
+	assert.EqualValues(t, 73, maxIndex) // the max index doesn't change because the transaction was rolled back
+}
+
+func TestGetNextResourceIndex(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	xe := unittest.GetXORMEngine()
+	require.NoError(t, xe.Sync(&TestIndex{}))
+
+	// create a new record
+	maxIndex, err := db.GetNextResourceIndex(db.DefaultContext, "test_index", 20)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, maxIndex)
+
+	// increase the existing record
+	maxIndex, err = db.GetNextResourceIndex(db.DefaultContext, "test_index", 20)
+	require.NoError(t, err)
+	assert.EqualValues(t, 2, maxIndex)
+
+	// commit transaction
+	err = db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		maxIndex, err = db.GetNextResourceIndex(ctx, "test_index", 20)
+		require.NoError(t, err)
+		assert.EqualValues(t, 3, maxIndex)
+		return nil
+	})
+	require.NoError(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 20)
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, maxIndex)
+
+	// rollback transaction
+	err = db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		maxIndex, err = db.GetNextResourceIndex(ctx, "test_index", 20)
+		require.NoError(t, err)
+		assert.EqualValues(t, 4, maxIndex)
+		return errors.New("test rollback")
+	})
+	require.Error(t, err)
+	maxIndex, err = getCurrentResourceIndex(db.DefaultContext, "test_index", 20)
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, maxIndex) // the max index doesn't change because the transaction was rolled back
+}
diff --git a/models/db/install/db.go b/models/db/install/db.go
new file mode 100644
index 0000000..d4c1139
--- /dev/null
+++ b/models/db/install/db.go
@@ -0,0 +1,64 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package install
+
+import (
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func getXORMEngine() *xorm.Engine {
+	return db.DefaultContext.(*db.Context).Engine().(*xorm.Engine)
+}
+
+// CheckDatabaseConnection checks the database connection
+func CheckDatabaseConnection() error {
+	e := db.GetEngine(db.DefaultContext)
+	_, err := e.Exec("SELECT 1")
+	return err
+}
+
+// GetMigrationVersion gets the database migration version
+func GetMigrationVersion() (int64, error) {
+	var installedDbVersion int64
+	x := getXORMEngine()
+	exist, err := x.IsTableExist("version")
+	if err != nil {
+		return 0, err
+	}
+	if !exist {
+		return 0, nil
+	}
+	_, err = x.Table("version").Cols("version").Get(&installedDbVersion)
+	if err != nil {
+		return 0, err
+	}
+	return installedDbVersion, nil
+}
+
+// HasPostInstallationUsers checks whether there are users after installation
+func HasPostInstallationUsers() (bool, error) {
+	x := getXORMEngine()
+	exist, err := x.IsTableExist("user")
+	if err != nil {
+		return false, err
+	}
+	if !exist {
+		return false, nil
+	}
+
+	// if there are 2 or more users in database, we consider there are users created after installation
+	threshold := 2
+	if !setting.IsProd {
+		// to debug easily, with non-prod RUN_MODE, we only check the count to 1
+		threshold = 1
+	}
+	res, err := x.Table("user").Cols("id").Limit(threshold).Query()
+	if err != nil {
+		return false, err
+	}
+	return len(res) >= threshold, nil
+}
diff --git a/models/db/iterate.go b/models/db/iterate.go
new file mode 100644
index 0000000..e1caefa
--- /dev/null
+++ b/models/db/iterate.go
@@ -0,0 +1,43 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/builder"
+)
+
+// Iterate iterate all the Bean object
+func Iterate[Bean any](ctx context.Context, cond builder.Cond, f func(ctx context.Context, bean *Bean) error) error {
+	var start int
+	batchSize := setting.Database.IterateBufferSize
+	sess := GetEngine(ctx)
+	for {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		default:
+			beans := make([]*Bean, 0, batchSize)
+			if cond != nil {
+				sess = sess.Where(cond)
+			}
+			if err := sess.Limit(batchSize, start).Find(&beans); err != nil {
+				return err
+			}
+			if len(beans) == 0 {
+				return nil
+			}
+			start += len(beans)
+
+			for _, bean := range beans {
+				if err := f(ctx, bean); err != nil {
+					return err
+				}
+			}
+		}
+	}
+}
diff --git a/models/db/iterate_test.go b/models/db/iterate_test.go
new file mode 100644
index 0000000..7535d01
--- /dev/null
+++ b/models/db/iterate_test.go
@@ -0,0 +1,45 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIterate(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	xe := unittest.GetXORMEngine()
+	require.NoError(t, xe.Sync(&repo_model.RepoUnit{}))
+
+	cnt, err := db.GetEngine(db.DefaultContext).Count(&repo_model.RepoUnit{})
+	require.NoError(t, err)
+
+	var repoUnitCnt int
+	err = db.Iterate(db.DefaultContext, nil, func(ctx context.Context, repo *repo_model.RepoUnit) error {
+		repoUnitCnt++
+		return nil
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, cnt, repoUnitCnt)
+
+	err = db.Iterate(db.DefaultContext, nil, func(ctx context.Context, repoUnit *repo_model.RepoUnit) error {
+		has, err := db.ExistByID[repo_model.RepoUnit](ctx, repoUnit.ID)
+		if err != nil {
+			return err
+		}
+		if !has {
+			return db.ErrNotExist{Resource: "repo_unit", ID: repoUnit.ID}
+		}
+		return nil
+	})
+	require.NoError(t, err)
+}
diff --git a/models/db/list.go b/models/db/list.go
new file mode 100644
index 0000000..5c005a0
--- /dev/null
+++ b/models/db/list.go
@@ -0,0 +1,215 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+const (
+	// DefaultMaxInSize represents default variables number on IN () in SQL
+	DefaultMaxInSize     = 50
+	defaultFindSliceSize = 10
+)
+
+// Paginator is the base for different ListOptions types
+type Paginator interface {
+	GetSkipTake() (skip, take int)
+	IsListAll() bool
+}
+
+// SetSessionPagination sets pagination for a database session
+func SetSessionPagination(sess Engine, p Paginator) *xorm.Session {
+	skip, take := p.GetSkipTake()
+
+	return sess.Limit(take, skip)
+}
+
+// ListOptions options to paginate results
+type ListOptions struct {
+	PageSize int
+	Page     int  // start from 1
+	ListAll  bool // if true, then PageSize and Page will not be taken
+}
+
+var ListOptionsAll = ListOptions{ListAll: true}
+
+var (
+	_ Paginator   = &ListOptions{}
+	_ FindOptions = ListOptions{}
+)
+
+// GetSkipTake returns the skip and take values
+func (opts *ListOptions) GetSkipTake() (skip, take int) {
+	opts.SetDefaultValues()
+	return (opts.Page - 1) * opts.PageSize, opts.PageSize
+}
+
+func (opts ListOptions) GetPage() int {
+	return opts.Page
+}
+
+func (opts ListOptions) GetPageSize() int {
+	return opts.PageSize
+}
+
+// IsListAll indicates PageSize and Page will be ignored
+func (opts ListOptions) IsListAll() bool {
+	return opts.ListAll
+}
+
+// SetDefaultValues sets default values
+func (opts *ListOptions) SetDefaultValues() {
+	if opts.PageSize <= 0 {
+		opts.PageSize = setting.API.DefaultPagingNum
+	}
+	if opts.PageSize > setting.API.MaxResponseItems {
+		opts.PageSize = setting.API.MaxResponseItems
+	}
+	if opts.Page <= 0 {
+		opts.Page = 1
+	}
+}
+
+func (opts ListOptions) ToConds() builder.Cond {
+	return builder.NewCond()
+}
+
+// AbsoluteListOptions absolute options to paginate results
+type AbsoluteListOptions struct {
+	skip int
+	take int
+}
+
+var _ Paginator = &AbsoluteListOptions{}
+
+// NewAbsoluteListOptions creates a list option with applied limits
+func NewAbsoluteListOptions(skip, take int) *AbsoluteListOptions {
+	if skip < 0 {
+		skip = 0
+	}
+	if take <= 0 {
+		take = setting.API.DefaultPagingNum
+	}
+	if take > setting.API.MaxResponseItems {
+		take = setting.API.MaxResponseItems
+	}
+	return &AbsoluteListOptions{skip, take}
+}
+
+// IsListAll will always return false
+func (opts *AbsoluteListOptions) IsListAll() bool {
+	return false
+}
+
+// GetSkipTake returns the skip and take values
+func (opts *AbsoluteListOptions) GetSkipTake() (skip, take int) {
+	return opts.skip, opts.take
+}
+
+// FindOptions represents a find options
+type FindOptions interface {
+	GetPage() int
+	GetPageSize() int
+	IsListAll() bool
+	ToConds() builder.Cond
+}
+
+type JoinFunc func(sess Engine) error
+
+type FindOptionsJoin interface {
+	ToJoins() []JoinFunc
+}
+
+type FindOptionsOrder interface {
+	ToOrders() string
+}
+
+// Find represents a common find function which accept an options interface
+func Find[T any](ctx context.Context, opts FindOptions) ([]*T, error) {
+	sess := GetEngine(ctx).Where(opts.ToConds())
+
+	if joinOpt, ok := opts.(FindOptionsJoin); ok {
+		for _, joinFunc := range joinOpt.ToJoins() {
+			if err := joinFunc(sess); err != nil {
+				return nil, err
+			}
+		}
+	}
+	if orderOpt, ok := opts.(FindOptionsOrder); ok {
+		if order := orderOpt.ToOrders(); order != "" {
+			sess.OrderBy(order)
+		}
+	}
+
+	page, pageSize := opts.GetPage(), opts.GetPageSize()
+	if !opts.IsListAll() && pageSize > 0 {
+		if page == 0 {
+			page = 1
+		}
+		sess.Limit(pageSize, (page-1)*pageSize)
+	}
+
+	findPageSize := defaultFindSliceSize
+	if pageSize > 0 {
+		findPageSize = pageSize
+	}
+	objects := make([]*T, 0, findPageSize)
+	if err := sess.Find(&objects); err != nil {
+		return nil, err
+	}
+	return objects, nil
+}
+
+// Count represents a common count function which accept an options interface
+func Count[T any](ctx context.Context, opts FindOptions) (int64, error) {
+	sess := GetEngine(ctx).Where(opts.ToConds())
+	if joinOpt, ok := opts.(FindOptionsJoin); ok {
+		for _, joinFunc := range joinOpt.ToJoins() {
+			if err := joinFunc(sess); err != nil {
+				return 0, err
+			}
+		}
+	}
+
+	var object T
+	return sess.Count(&object)
+}
+
+// FindAndCount represents a common findandcount function which accept an options interface
+func FindAndCount[T any](ctx context.Context, opts FindOptions) ([]*T, int64, error) {
+	sess := GetEngine(ctx).Where(opts.ToConds())
+	page, pageSize := opts.GetPage(), opts.GetPageSize()
+	if !opts.IsListAll() && pageSize > 0 && page >= 1 {
+		sess.Limit(pageSize, (page-1)*pageSize)
+	}
+	if joinOpt, ok := opts.(FindOptionsJoin); ok {
+		for _, joinFunc := range joinOpt.ToJoins() {
+			if err := joinFunc(sess); err != nil {
+				return nil, 0, err
+			}
+		}
+	}
+	if orderOpt, ok := opts.(FindOptionsOrder); ok {
+		if order := orderOpt.ToOrders(); order != "" {
+			sess.OrderBy(order)
+		}
+	}
+
+	findPageSize := defaultFindSliceSize
+	if pageSize > 0 {
+		findPageSize = pageSize
+	}
+	objects := make([]*T, 0, findPageSize)
+	cnt, err := sess.FindAndCount(&objects)
+	if err != nil {
+		return nil, 0, err
+	}
+	return objects, cnt, nil
+}
diff --git a/models/db/list_test.go b/models/db/list_test.go
new file mode 100644
index 0000000..82240d2
--- /dev/null
+++ b/models/db/list_test.go
@@ -0,0 +1,53 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/builder"
+)
+
+type mockListOptions struct {
+	db.ListOptions
+}
+
+func (opts mockListOptions) IsListAll() bool {
+	return true
+}
+
+func (opts mockListOptions) ToConds() builder.Cond {
+	return builder.NewCond()
+}
+
+func TestFind(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	xe := unittest.GetXORMEngine()
+	require.NoError(t, xe.Sync(&repo_model.RepoUnit{}))
+
+	var repoUnitCount int
+	_, err := db.GetEngine(db.DefaultContext).SQL("SELECT COUNT(*) FROM repo_unit").Get(&repoUnitCount)
+	require.NoError(t, err)
+	assert.NotEmpty(t, repoUnitCount)
+
+	opts := mockListOptions{}
+	repoUnits, err := db.Find[repo_model.RepoUnit](db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.Len(t, repoUnits, repoUnitCount)
+
+	cnt, err := db.Count[repo_model.RepoUnit](db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.EqualValues(t, repoUnitCount, cnt)
+
+	repoUnits, newCnt, err := db.FindAndCount[repo_model.RepoUnit](db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.EqualValues(t, cnt, newCnt)
+	assert.Len(t, repoUnits, repoUnitCount)
+}
diff --git a/models/db/log.go b/models/db/log.go
new file mode 100644
index 0000000..457ee80
--- /dev/null
+++ b/models/db/log.go
@@ -0,0 +1,107 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"fmt"
+	"sync/atomic"
+
+	"code.gitea.io/gitea/modules/log"
+
+	xormlog "xorm.io/xorm/log"
+)
+
+// XORMLogBridge a logger bridge from Logger to xorm
+type XORMLogBridge struct {
+	showSQL atomic.Bool
+	logger  log.Logger
+}
+
+// NewXORMLogger inits a log bridge for xorm
+func NewXORMLogger(showSQL bool) xormlog.Logger {
+	l := &XORMLogBridge{logger: log.GetLogger("xorm")}
+	l.showSQL.Store(showSQL)
+	return l
+}
+
+const stackLevel = 8
+
+// Log a message with defined skip and at logging level
+func (l *XORMLogBridge) Log(skip int, level log.Level, format string, v ...any) {
+	l.logger.Log(skip+1, level, format, v...)
+}
+
+// Debug show debug log
+func (l *XORMLogBridge) Debug(v ...any) {
+	l.Log(stackLevel, log.DEBUG, "%s", fmt.Sprint(v...))
+}
+
+// Debugf show debug log
+func (l *XORMLogBridge) Debugf(format string, v ...any) {
+	l.Log(stackLevel, log.DEBUG, format, v...)
+}
+
+// Error show error log
+func (l *XORMLogBridge) Error(v ...any) {
+	l.Log(stackLevel, log.ERROR, "%s", fmt.Sprint(v...))
+}
+
+// Errorf show error log
+func (l *XORMLogBridge) Errorf(format string, v ...any) {
+	l.Log(stackLevel, log.ERROR, format, v...)
+}
+
+// Info show information level log
+func (l *XORMLogBridge) Info(v ...any) {
+	l.Log(stackLevel, log.INFO, "%s", fmt.Sprint(v...))
+}
+
+// Infof show information level log
+func (l *XORMLogBridge) Infof(format string, v ...any) {
+	l.Log(stackLevel, log.INFO, format, v...)
+}
+
+// Warn show warning log
+func (l *XORMLogBridge) Warn(v ...any) {
+	l.Log(stackLevel, log.WARN, "%s", fmt.Sprint(v...))
+}
+
+// Warnf show warning log
+func (l *XORMLogBridge) Warnf(format string, v ...any) {
+	l.Log(stackLevel, log.WARN, format, v...)
+}
+
+// Level get logger level
+func (l *XORMLogBridge) Level() xormlog.LogLevel {
+	switch l.logger.GetLevel() {
+	case log.TRACE, log.DEBUG:
+		return xormlog.LOG_DEBUG
+	case log.INFO:
+		return xormlog.LOG_INFO
+	case log.WARN:
+		return xormlog.LOG_WARNING
+	case log.ERROR:
+		return xormlog.LOG_ERR
+	case log.NONE:
+		return xormlog.LOG_OFF
+	}
+	return xormlog.LOG_UNKNOWN
+}
+
+// SetLevel set the logger level
+func (l *XORMLogBridge) SetLevel(lvl xormlog.LogLevel) {
+}
+
+// ShowSQL set if record SQL
+func (l *XORMLogBridge) ShowSQL(show ...bool) {
+	if len(show) == 0 {
+		show = []bool{true}
+	}
+	l.showSQL.Store(show[0])
+}
+
+// IsShowSQL if record SQL
+func (l *XORMLogBridge) IsShowSQL() bool {
+	return l.showSQL.Load()
+}
diff --git a/models/db/main_test.go b/models/db/main_test.go
new file mode 100644
index 0000000..7d80b40
--- /dev/null
+++ b/models/db/main_test.go
@@ -0,0 +1,17 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/repo"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/db/name.go b/models/db/name.go
new file mode 100644
index 0000000..51be33a
--- /dev/null
+++ b/models/db/name.go
@@ -0,0 +1,106 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+	"unicode/utf8"
+
+	"code.gitea.io/gitea/modules/util"
+)
+
+var (
+	// ErrNameEmpty name is empty error
+	ErrNameEmpty = util.SilentWrap{Message: "name is empty", Err: util.ErrInvalidArgument}
+
+	// AlphaDashDotPattern characters prohibited in a user name (anything except A-Za-z0-9_.-)
+	AlphaDashDotPattern = regexp.MustCompile(`[^\w-\.]`)
+)
+
+// ErrNameReserved represents a "reserved name" error.
+type ErrNameReserved struct {
+	Name string
+}
+
+// IsErrNameReserved checks if an error is a ErrNameReserved.
+func IsErrNameReserved(err error) bool {
+	_, ok := err.(ErrNameReserved)
+	return ok
+}
+
+func (err ErrNameReserved) Error() string {
+	return fmt.Sprintf("name is reserved [name: %s]", err.Name)
+}
+
+// Unwrap unwraps this as a ErrInvalid err
+func (err ErrNameReserved) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrNamePatternNotAllowed represents a "pattern not allowed" error.
+type ErrNamePatternNotAllowed struct {
+	Pattern string
+}
+
+// IsErrNamePatternNotAllowed checks if an error is an ErrNamePatternNotAllowed.
+func IsErrNamePatternNotAllowed(err error) bool {
+	_, ok := err.(ErrNamePatternNotAllowed)
+	return ok
+}
+
+func (err ErrNamePatternNotAllowed) Error() string {
+	return fmt.Sprintf("name pattern is not allowed [pattern: %s]", err.Pattern)
+}
+
+// Unwrap unwraps this as a ErrInvalid err
+func (err ErrNamePatternNotAllowed) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrNameCharsNotAllowed represents a "character not allowed in name" error.
+type ErrNameCharsNotAllowed struct {
+	Name string
+}
+
+// IsErrNameCharsNotAllowed checks if an error is an ErrNameCharsNotAllowed.
+func IsErrNameCharsNotAllowed(err error) bool {
+	_, ok := err.(ErrNameCharsNotAllowed)
+	return ok
+}
+
+func (err ErrNameCharsNotAllowed) Error() string {
+	return fmt.Sprintf("name is invalid [%s]: must be valid alpha or numeric or dash(-_) or dot characters", err.Name)
+}
+
+// Unwrap unwraps this as a ErrInvalid err
+func (err ErrNameCharsNotAllowed) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// IsUsableName checks if name is reserved or pattern of name is not allowed
+// based on given reserved names and patterns.
+// Names are exact match, patterns can be prefix or suffix match with placeholder '*'.
+func IsUsableName(names, patterns []string, name string) error {
+	name = strings.TrimSpace(strings.ToLower(name))
+	if utf8.RuneCountInString(name) == 0 {
+		return ErrNameEmpty
+	}
+
+	for i := range names {
+		if name == names[i] {
+			return ErrNameReserved{name}
+		}
+	}
+
+	for _, pat := range patterns {
+		if pat[0] == '*' && strings.HasSuffix(name, pat[1:]) ||
+			(pat[len(pat)-1] == '*' && strings.HasPrefix(name, pat[:len(pat)-1])) {
+			return ErrNamePatternNotAllowed{pat}
+		}
+	}
+
+	return nil
+}
diff --git a/models/db/paginator/main_test.go b/models/db/paginator/main_test.go
new file mode 100644
index 0000000..47993ae
--- /dev/null
+++ b/models/db/paginator/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package paginator
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/db/paginator/paginator.go b/models/db/paginator/paginator.go
new file mode 100644
index 0000000..bcda47d
--- /dev/null
+++ b/models/db/paginator/paginator.go
@@ -0,0 +1,7 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package paginator
+
+// dummy only. in the future, the models/db/list_options.go should be moved here to decouple from db package
+// otherwise the unit test will cause cycle import
diff --git a/models/db/paginator/paginator_test.go b/models/db/paginator/paginator_test.go
new file mode 100644
index 0000000..2060221
--- /dev/null
+++ b/models/db/paginator/paginator_test.go
@@ -0,0 +1,59 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package paginator
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPaginator(t *testing.T) {
+	cases := []struct {
+		db.Paginator
+		Skip  int
+		Take  int
+		Start int
+		End   int
+	}{
+		{
+			Paginator: &db.ListOptions{Page: -1, PageSize: -1},
+			Skip:      0,
+			Take:      setting.API.DefaultPagingNum,
+			Start:     0,
+			End:       setting.API.DefaultPagingNum,
+		},
+		{
+			Paginator: &db.ListOptions{Page: 2, PageSize: 10},
+			Skip:      10,
+			Take:      10,
+			Start:     10,
+			End:       20,
+		},
+		{
+			Paginator: db.NewAbsoluteListOptions(-1, -1),
+			Skip:      0,
+			Take:      setting.API.DefaultPagingNum,
+			Start:     0,
+			End:       setting.API.DefaultPagingNum,
+		},
+		{
+			Paginator: db.NewAbsoluteListOptions(2, 10),
+			Skip:      2,
+			Take:      10,
+			Start:     2,
+			End:       12,
+		},
+	}
+
+	for _, c := range cases {
+		skip, take := c.Paginator.GetSkipTake()
+
+		assert.Equal(t, c.Skip, skip)
+		assert.Equal(t, c.Take, take)
+	}
+}
diff --git a/models/db/search.go b/models/db/search.go
new file mode 100644
index 0000000..37565f4
--- /dev/null
+++ b/models/db/search.go
@@ -0,0 +1,33 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+// SearchOrderBy is used to sort the result
+type SearchOrderBy string
+
+func (s SearchOrderBy) String() string {
+	return string(s)
+}
+
+// Strings for sorting result
+const (
+	SearchOrderByAlphabetically        SearchOrderBy = "name ASC"
+	SearchOrderByAlphabeticallyReverse SearchOrderBy = "name DESC"
+	SearchOrderByLeastUpdated          SearchOrderBy = "updated_unix ASC"
+	SearchOrderByRecentUpdated         SearchOrderBy = "updated_unix DESC"
+	SearchOrderByOldest                SearchOrderBy = "created_unix ASC"
+	SearchOrderByNewest                SearchOrderBy = "created_unix DESC"
+	SearchOrderByID                    SearchOrderBy = "id ASC"
+	SearchOrderByIDReverse             SearchOrderBy = "id DESC"
+	SearchOrderByStars                 SearchOrderBy = "num_stars ASC"
+	SearchOrderByStarsReverse          SearchOrderBy = "num_stars DESC"
+	SearchOrderByForks                 SearchOrderBy = "num_forks ASC"
+	SearchOrderByForksReverse          SearchOrderBy = "num_forks DESC"
+)
+
+const (
+	// Which means a condition to filter the records which don't match any id.
+	// It's different from zero which means the condition could be ignored.
+	NoConditionID = -1
+)
diff --git a/models/db/sequence.go b/models/db/sequence.go
new file mode 100644
index 0000000..f49ad93
--- /dev/null
+++ b/models/db/sequence.go
@@ -0,0 +1,70 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"context"
+	"fmt"
+	"regexp"
+
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// CountBadSequences looks for broken sequences from recreate-table mistakes
+func CountBadSequences(_ context.Context) (int64, error) {
+	if !setting.Database.Type.IsPostgreSQL() {
+		return 0, nil
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	var sequences []string
+	schema := x.Dialect().URI().Schema
+
+	sess.Engine().SetSchema("")
+	if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
+		return 0, err
+	}
+	sess.Engine().SetSchema(schema)
+
+	return int64(len(sequences)), nil
+}
+
+// FixBadSequences fixes for broken sequences from recreate-table mistakes
+func FixBadSequences(_ context.Context) error {
+	if !setting.Database.Type.IsPostgreSQL() {
+		return nil
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	var sequences []string
+	schema := sess.Engine().Dialect().URI().Schema
+
+	sess.Engine().SetSchema("")
+	if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
+		return err
+	}
+	sess.Engine().SetSchema(schema)
+
+	sequenceRegexp := regexp.MustCompile(`tmp_recreate__(\w+)_id_seq.*`)
+
+	for _, sequence := range sequences {
+		tableName := sequenceRegexp.FindStringSubmatch(sequence)[1]
+		newSequenceName := tableName + "_id_seq"
+		if _, err := sess.Exec(fmt.Sprintf("ALTER SEQUENCE `%s` RENAME TO `%s`", sequence, newSequenceName)); err != nil {
+			return err
+		}
+		if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', COALESCE((SELECT MAX(id)+1 FROM `%s`), 1), false)", newSequenceName, tableName)); err != nil {
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/db/sql_postgres_with_schema.go b/models/db/sql_postgres_with_schema.go
new file mode 100644
index 0000000..ec63447
--- /dev/null
+++ b/models/db/sql_postgres_with_schema.go
@@ -0,0 +1,74 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package db
+
+import (
+	"database/sql"
+	"database/sql/driver"
+	"sync"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/lib/pq"
+	"xorm.io/xorm/dialects"
+)
+
+var registerOnce sync.Once
+
+func registerPostgresSchemaDriver() {
+	registerOnce.Do(func() {
+		sql.Register("postgresschema", &postgresSchemaDriver{})
+		dialects.RegisterDriver("postgresschema", dialects.QueryDriver("postgres"))
+	})
+}
+
+type postgresSchemaDriver struct {
+	pq.Driver
+}
+
+// Open opens a new connection to the database. name is a connection string.
+// This function opens the postgres connection in the default manner but immediately
+// runs set_config to set the search_path appropriately
+func (d *postgresSchemaDriver) Open(name string) (driver.Conn, error) {
+	conn, err := d.Driver.Open(name)
+	if err != nil {
+		return conn, err
+	}
+	schemaValue, _ := driver.String.ConvertValue(setting.Database.Schema)
+
+	// golangci lint is incorrect here - there is no benefit to using driver.ExecerContext here
+	// and in any case pq does not implement it
+	if execer, ok := conn.(driver.Execer); ok { //nolint
+		_, err := execer.Exec(`SELECT set_config(
+			'search_path',
+			$1 || ',' || current_setting('search_path'),
+			false)`, []driver.Value{schemaValue})
+		if err != nil {
+			_ = conn.Close()
+			return nil, err
+		}
+		return conn, nil
+	}
+
+	stmt, err := conn.Prepare(`SELECT set_config(
+		'search_path',
+		$1 || ',' || current_setting('search_path'),
+		false)`)
+	if err != nil {
+		_ = conn.Close()
+		return nil, err
+	}
+	defer stmt.Close()
+
+	// driver.String.ConvertValue will never return err for string
+
+	// golangci lint is incorrect here - there is no benefit to using stmt.ExecWithContext here
+	_, err = stmt.Exec([]driver.Value{schemaValue}) //nolint
+	if err != nil {
+		_ = conn.Close()
+		return nil, err
+	}
+
+	return conn, nil
+}
diff --git a/models/dbfs/dbfile.go b/models/dbfs/dbfile.go
new file mode 100644
index 0000000..dd27b5c
--- /dev/null
+++ b/models/dbfs/dbfile.go
@@ -0,0 +1,368 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package dbfs
+
+import (
+	"context"
+	"errors"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+var defaultFileBlockSize int64 = 32 * 1024
+
+type File interface {
+	io.ReadWriteCloser
+	io.Seeker
+	fs.File
+}
+
+type file struct {
+	ctx       context.Context
+	metaID    int64
+	fullPath  string
+	blockSize int64
+
+	allowRead  bool
+	allowWrite bool
+	offset     int64
+}
+
+var _ File = (*file)(nil)
+
+func (f *file) readAt(fileMeta *dbfsMeta, offset int64, p []byte) (n int, err error) {
+	if offset >= fileMeta.FileSize {
+		return 0, io.EOF
+	}
+
+	blobPos := int(offset % f.blockSize)
+	blobOffset := offset - int64(blobPos)
+	blobRemaining := int(f.blockSize) - blobPos
+	needRead := len(p)
+	if needRead > blobRemaining {
+		needRead = blobRemaining
+	}
+	if blobOffset+int64(blobPos)+int64(needRead) > fileMeta.FileSize {
+		needRead = int(fileMeta.FileSize - blobOffset - int64(blobPos))
+	}
+	if needRead <= 0 {
+		return 0, io.EOF
+	}
+	var fileData dbfsData
+	ok, err := db.GetEngine(f.ctx).Where("meta_id = ? AND blob_offset = ?", f.metaID, blobOffset).Get(&fileData)
+	if err != nil {
+		return 0, err
+	}
+	blobData := fileData.BlobData
+	if !ok {
+		blobData = nil
+	}
+
+	canCopy := len(blobData) - blobPos
+	if canCopy <= 0 {
+		canCopy = 0
+	}
+	realRead := needRead
+	if realRead > canCopy {
+		realRead = canCopy
+	}
+	if realRead > 0 {
+		copy(p[:realRead], fileData.BlobData[blobPos:blobPos+realRead])
+	}
+	for i := realRead; i < needRead; i++ {
+		p[i] = 0
+	}
+	return needRead, nil
+}
+
+func (f *file) Read(p []byte) (n int, err error) {
+	if f.metaID == 0 || !f.allowRead {
+		return 0, os.ErrInvalid
+	}
+
+	fileMeta, err := findFileMetaByID(f.ctx, f.metaID)
+	if err != nil {
+		return 0, err
+	}
+	n, err = f.readAt(fileMeta, f.offset, p)
+	f.offset += int64(n)
+	return n, err
+}
+
+func (f *file) Write(p []byte) (n int, err error) {
+	if f.metaID == 0 || !f.allowWrite {
+		return 0, os.ErrInvalid
+	}
+
+	fileMeta, err := findFileMetaByID(f.ctx, f.metaID)
+	if err != nil {
+		return 0, err
+	}
+
+	needUpdateSize := false
+	written := 0
+	for len(p) > 0 {
+		blobPos := int(f.offset % f.blockSize)
+		blobOffset := f.offset - int64(blobPos)
+		blobRemaining := int(f.blockSize) - blobPos
+		needWrite := len(p)
+		if needWrite > blobRemaining {
+			needWrite = blobRemaining
+		}
+		buf := make([]byte, f.blockSize)
+		readBytes, err := f.readAt(fileMeta, blobOffset, buf)
+		if err != nil && !errors.Is(err, io.EOF) {
+			return written, err
+		}
+		copy(buf[blobPos:blobPos+needWrite], p[:needWrite])
+		if blobPos+needWrite > readBytes {
+			buf = buf[:blobPos+needWrite]
+		} else {
+			buf = buf[:readBytes]
+		}
+
+		fileData := dbfsData{
+			MetaID:     fileMeta.ID,
+			BlobOffset: blobOffset,
+			BlobData:   buf,
+		}
+		if res, err := db.GetEngine(f.ctx).Exec("UPDATE dbfs_data SET revision=revision+1, blob_data=? WHERE meta_id=? AND blob_offset=?", buf, fileMeta.ID, blobOffset); err != nil {
+			return written, err
+		} else if updated, err := res.RowsAffected(); err != nil {
+			return written, err
+		} else if updated == 0 {
+			if _, err = db.GetEngine(f.ctx).Insert(&fileData); err != nil {
+				return written, err
+			}
+		}
+		written += needWrite
+		f.offset += int64(needWrite)
+		if f.offset > fileMeta.FileSize {
+			fileMeta.FileSize = f.offset
+			needUpdateSize = true
+		}
+		p = p[needWrite:]
+	}
+
+	fileMetaUpdate := dbfsMeta{
+		ModifyTimestamp: timeToFileTimestamp(time.Now()),
+	}
+	if needUpdateSize {
+		fileMetaUpdate.FileSize = f.offset
+	}
+	if _, err := db.GetEngine(f.ctx).ID(fileMeta.ID).Update(fileMetaUpdate); err != nil {
+		return written, err
+	}
+	return written, nil
+}
+
+func (f *file) Seek(n int64, whence int) (int64, error) {
+	if f.metaID == 0 {
+		return 0, os.ErrInvalid
+	}
+
+	newOffset := f.offset
+	switch whence {
+	case io.SeekStart:
+		newOffset = n
+	case io.SeekCurrent:
+		newOffset += n
+	case io.SeekEnd:
+		size, err := f.size()
+		if err != nil {
+			return f.offset, err
+		}
+		newOffset = size + n
+	default:
+		return f.offset, os.ErrInvalid
+	}
+	if newOffset < 0 {
+		return f.offset, os.ErrInvalid
+	}
+	f.offset = newOffset
+	return newOffset, nil
+}
+
+func (f *file) Close() error {
+	return nil
+}
+
+func (f *file) Stat() (os.FileInfo, error) {
+	if f.metaID == 0 {
+		return nil, os.ErrInvalid
+	}
+
+	fileMeta, err := findFileMetaByID(f.ctx, f.metaID)
+	if err != nil {
+		return nil, err
+	}
+	return fileMeta, nil
+}
+
+func timeToFileTimestamp(t time.Time) int64 {
+	return t.UnixMicro()
+}
+
+func fileTimestampToTime(timestamp int64) time.Time {
+	return time.UnixMicro(timestamp)
+}
+
+func (f *file) loadMetaByPath() error {
+	var fileMeta dbfsMeta
+	if ok, err := db.GetEngine(f.ctx).Where("full_path = ?", f.fullPath).Get(&fileMeta); err != nil {
+		return err
+	} else if ok {
+		f.metaID = fileMeta.ID
+		f.blockSize = fileMeta.BlockSize
+	}
+	return nil
+}
+
+func (f *file) open(flag int) (err error) {
+	// see os.OpenFile for flag values
+	if flag&os.O_WRONLY != 0 {
+		f.allowWrite = true
+	} else if flag&os.O_RDWR != 0 {
+		f.allowRead = true
+		f.allowWrite = true
+	} else /* O_RDONLY */ {
+		f.allowRead = true
+	}
+
+	if f.allowWrite {
+		if flag&os.O_CREATE != 0 {
+			if flag&os.O_EXCL != 0 {
+				// file must not exist.
+				if f.metaID != 0 {
+					return os.ErrExist
+				}
+			} else {
+				// create a new file if none exists.
+				if f.metaID == 0 {
+					if err = f.createEmpty(); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		if flag&os.O_TRUNC != 0 {
+			if err = f.truncate(); err != nil {
+				return err
+			}
+		}
+		if flag&os.O_APPEND != 0 {
+			if _, err = f.Seek(0, io.SeekEnd); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+
+	// read only mode
+	if f.metaID == 0 {
+		return os.ErrNotExist
+	}
+	return nil
+}
+
+func (f *file) createEmpty() error {
+	if f.metaID != 0 {
+		return os.ErrExist
+	}
+	now := time.Now()
+	_, err := db.GetEngine(f.ctx).Insert(&dbfsMeta{
+		FullPath:        f.fullPath,
+		BlockSize:       f.blockSize,
+		CreateTimestamp: timeToFileTimestamp(now),
+		ModifyTimestamp: timeToFileTimestamp(now),
+	})
+	if err != nil {
+		return err
+	}
+	return f.loadMetaByPath()
+}
+
+func (f *file) truncate() error {
+	if f.metaID == 0 {
+		return os.ErrNotExist
+	}
+	return db.WithTx(f.ctx, func(ctx context.Context) error {
+		if _, err := db.GetEngine(ctx).Exec("UPDATE dbfs_meta SET file_size = 0 WHERE id = ?", f.metaID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Delete(&dbfsData{MetaID: f.metaID}); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func (f *file) renameTo(newPath string) error {
+	if f.metaID == 0 {
+		return os.ErrNotExist
+	}
+	newPath = buildPath(newPath)
+	return db.WithTx(f.ctx, func(ctx context.Context) error {
+		if _, err := db.GetEngine(ctx).Exec("UPDATE dbfs_meta SET full_path = ? WHERE id = ?", newPath, f.metaID); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func (f *file) delete() error {
+	if f.metaID == 0 {
+		return os.ErrNotExist
+	}
+	return db.WithTx(f.ctx, func(ctx context.Context) error {
+		if _, err := db.GetEngine(ctx).Delete(&dbfsMeta{ID: f.metaID}); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Delete(&dbfsData{MetaID: f.metaID}); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
+func (f *file) size() (int64, error) {
+	if f.metaID == 0 {
+		return 0, os.ErrNotExist
+	}
+	fileMeta, err := findFileMetaByID(f.ctx, f.metaID)
+	if err != nil {
+		return 0, err
+	}
+	return fileMeta.FileSize, nil
+}
+
+func findFileMetaByID(ctx context.Context, metaID int64) (*dbfsMeta, error) {
+	var fileMeta dbfsMeta
+	if ok, err := db.GetEngine(ctx).Where("id = ?", metaID).Get(&fileMeta); err != nil {
+		return nil, err
+	} else if ok {
+		return &fileMeta, nil
+	}
+	return nil, nil
+}
+
+func buildPath(path string) string {
+	path = filepath.Clean(path)
+	path = strings.ReplaceAll(path, "\\", "/")
+	path = strings.TrimPrefix(path, "/")
+	return strconv.Itoa(strings.Count(path, "/")) + ":" + path
+}
+
+func newDbFile(ctx context.Context, path string) (*file, error) {
+	path = buildPath(path)
+	f := &file{ctx: ctx, fullPath: path, blockSize: defaultFileBlockSize}
+	return f, f.loadMetaByPath()
+}
diff --git a/models/dbfs/dbfs.go b/models/dbfs/dbfs.go
new file mode 100644
index 0000000..f68b4a2
--- /dev/null
+++ b/models/dbfs/dbfs.go
@@ -0,0 +1,131 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package dbfs
+
+import (
+	"context"
+	"io/fs"
+	"os"
+	"path"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+/*
+The reasons behind the DBFS (database-filesystem) package:
+When a Gitea action is running, the Gitea action server should collect and store all the logs.
+
+The requirements are:
+* The running logs must be stored across the cluster if the Gitea servers are deployed as a cluster.
+* The logs will be archived to Object Storage (S3/MinIO, etc.) after a period of time.
+* The Gitea action UI should be able to render the running logs and the archived logs.
+
+Some possible solutions for the running logs:
+* [Not ideal] Using local temp file: it can not be shared across the cluster.
+* [Not ideal] Using shared file in the filesystem of git repository: although at the moment, the Gitea cluster's
+	git repositories must be stored in a shared filesystem, in the future, Gitea may need a dedicated Git Service Server
+	to decouple the shared filesystem. Then the action logs will become a blocker.
+* [Not ideal] Record the logs in a database table line by line: it has a couple of problems:
+	- It's difficult to make multiple increasing sequence (log line number) for different databases.
+	- The database table will have a lot of rows and be affected by the big-table performance problem.
+	- It's difficult to load logs by using the same interface as other storages.
+  - It's difficult to calculate the size of the logs.
+
+The DBFS solution:
+* It can be used in a cluster.
+* It can share the same interface (Read/Write/Seek) as other storages.
+* It's very friendly to database because it only needs to store much fewer rows than the log-line solution.
+* In the future, when Gitea action needs to limit the log size (other CI/CD services also do so), it's easier to calculate the log file size.
+* Even sometimes the UI needs to render the tailing lines, the tailing lines can be found be counting the "\n" from the end of the file by seek.
+  The seeking and finding is not the fastest way, but it's still acceptable and won't affect the performance too much.
+*/
+
+type dbfsMeta struct {
+	ID              int64  `xorm:"pk autoincr"`
+	FullPath        string `xorm:"VARCHAR(500) UNIQUE NOT NULL"`
+	BlockSize       int64  `xorm:"BIGINT NOT NULL"`
+	FileSize        int64  `xorm:"BIGINT NOT NULL"`
+	CreateTimestamp int64  `xorm:"BIGINT NOT NULL"`
+	ModifyTimestamp int64  `xorm:"BIGINT NOT NULL"`
+}
+
+type dbfsData struct {
+	ID         int64  `xorm:"pk autoincr"`
+	Revision   int64  `xorm:"BIGINT NOT NULL"`
+	MetaID     int64  `xorm:"BIGINT index(meta_offset) NOT NULL"`
+	BlobOffset int64  `xorm:"BIGINT index(meta_offset) NOT NULL"`
+	BlobSize   int64  `xorm:"BIGINT NOT NULL"`
+	BlobData   []byte `xorm:"BLOB NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(dbfsMeta))
+	db.RegisterModel(new(dbfsData))
+}
+
+func OpenFile(ctx context.Context, name string, flag int) (File, error) {
+	f, err := newDbFile(ctx, name)
+	if err != nil {
+		return nil, err
+	}
+	err = f.open(flag)
+	if err != nil {
+		_ = f.Close()
+		return nil, err
+	}
+	return f, nil
+}
+
+func Open(ctx context.Context, name string) (File, error) {
+	return OpenFile(ctx, name, os.O_RDONLY)
+}
+
+func Create(ctx context.Context, name string) (File, error) {
+	return OpenFile(ctx, name, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
+}
+
+func Rename(ctx context.Context, oldPath, newPath string) error {
+	f, err := newDbFile(ctx, oldPath)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	return f.renameTo(newPath)
+}
+
+func Remove(ctx context.Context, name string) error {
+	f, err := newDbFile(ctx, name)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	return f.delete()
+}
+
+var _ fs.FileInfo = (*dbfsMeta)(nil)
+
+func (m *dbfsMeta) Name() string {
+	return path.Base(m.FullPath)
+}
+
+func (m *dbfsMeta) Size() int64 {
+	return m.FileSize
+}
+
+func (m *dbfsMeta) Mode() fs.FileMode {
+	return os.ModePerm
+}
+
+func (m *dbfsMeta) ModTime() time.Time {
+	return fileTimestampToTime(m.ModifyTimestamp)
+}
+
+func (m *dbfsMeta) IsDir() bool {
+	return false
+}
+
+func (m *dbfsMeta) Sys() any {
+	return nil
+}
diff --git a/models/dbfs/dbfs_test.go b/models/dbfs/dbfs_test.go
new file mode 100644
index 0000000..3ad273a
--- /dev/null
+++ b/models/dbfs/dbfs_test.go
@@ -0,0 +1,191 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package dbfs
+
+import (
+	"bufio"
+	"io"
+	"os"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func changeDefaultFileBlockSize(n int64) (restore func()) {
+	old := defaultFileBlockSize
+	defaultFileBlockSize = n
+	return func() {
+		defaultFileBlockSize = old
+	}
+}
+
+func TestDbfsBasic(t *testing.T) {
+	defer changeDefaultFileBlockSize(4)()
+
+	// test basic write/read
+	f, err := OpenFile(db.DefaultContext, "test.txt", os.O_RDWR|os.O_CREATE)
+	require.NoError(t, err)
+
+	n, err := f.Write([]byte("0123456789")) // blocks: 0123 4567 89
+	require.NoError(t, err)
+	assert.EqualValues(t, 10, n)
+
+	_, err = f.Seek(0, io.SeekStart)
+	require.NoError(t, err)
+
+	buf, err := io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, 10, n)
+	assert.EqualValues(t, "0123456789", string(buf))
+
+	// write some new data
+	_, err = f.Seek(1, io.SeekStart)
+	require.NoError(t, err)
+	_, err = f.Write([]byte("bcdefghi")) // blocks: 0bcd efgh i9
+	require.NoError(t, err)
+
+	// read from offset
+	buf, err = io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, "9", string(buf))
+
+	// read all
+	_, err = f.Seek(0, io.SeekStart)
+	require.NoError(t, err)
+	buf, err = io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, "0bcdefghi9", string(buf))
+
+	// write to new size
+	_, err = f.Seek(-1, io.SeekEnd)
+	require.NoError(t, err)
+	_, err = f.Write([]byte("JKLMNOP")) // blocks: 0bcd efgh iJKL MNOP
+	require.NoError(t, err)
+	_, err = f.Seek(0, io.SeekStart)
+	require.NoError(t, err)
+	buf, err = io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, "0bcdefghiJKLMNOP", string(buf))
+
+	// write beyond EOF and fill with zero
+	_, err = f.Seek(5, io.SeekCurrent)
+	require.NoError(t, err)
+	_, err = f.Write([]byte("xyzu")) // blocks: 0bcd efgh iJKL MNOP 0000 0xyz u
+	require.NoError(t, err)
+	_, err = f.Seek(0, io.SeekStart)
+	require.NoError(t, err)
+	buf, err = io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, "0bcdefghiJKLMNOP\x00\x00\x00\x00\x00xyzu", string(buf))
+
+	// write to the block with zeros
+	_, err = f.Seek(-6, io.SeekCurrent)
+	require.NoError(t, err)
+	_, err = f.Write([]byte("ABCD")) // blocks: 0bcd efgh iJKL MNOP 000A BCDz u
+	require.NoError(t, err)
+	_, err = f.Seek(0, io.SeekStart)
+	require.NoError(t, err)
+	buf, err = io.ReadAll(f)
+	require.NoError(t, err)
+	assert.EqualValues(t, "0bcdefghiJKLMNOP\x00\x00\x00ABCDzu", string(buf))
+
+	require.NoError(t, f.Close())
+
+	// test rename
+	err = Rename(db.DefaultContext, "test.txt", "test2.txt")
+	require.NoError(t, err)
+
+	_, err = OpenFile(db.DefaultContext, "test.txt", os.O_RDONLY)
+	require.Error(t, err)
+
+	f, err = OpenFile(db.DefaultContext, "test2.txt", os.O_RDONLY)
+	require.NoError(t, err)
+	require.NoError(t, f.Close())
+
+	// test remove
+	err = Remove(db.DefaultContext, "test2.txt")
+	require.NoError(t, err)
+
+	_, err = OpenFile(db.DefaultContext, "test2.txt", os.O_RDONLY)
+	require.Error(t, err)
+
+	// test stat
+	f, err = OpenFile(db.DefaultContext, "test/test.txt", os.O_RDWR|os.O_CREATE)
+	require.NoError(t, err)
+	stat, err := f.Stat()
+	require.NoError(t, err)
+	assert.EqualValues(t, "test.txt", stat.Name())
+	assert.EqualValues(t, 0, stat.Size())
+	_, err = f.Write([]byte("0123456789"))
+	require.NoError(t, err)
+	stat, err = f.Stat()
+	require.NoError(t, err)
+	assert.EqualValues(t, 10, stat.Size())
+}
+
+func TestDbfsReadWrite(t *testing.T) {
+	defer changeDefaultFileBlockSize(4)()
+
+	f1, err := OpenFile(db.DefaultContext, "test.log", os.O_RDWR|os.O_CREATE)
+	require.NoError(t, err)
+	defer f1.Close()
+
+	f2, err := OpenFile(db.DefaultContext, "test.log", os.O_RDONLY)
+	require.NoError(t, err)
+	defer f2.Close()
+
+	_, err = f1.Write([]byte("line 1\n"))
+	require.NoError(t, err)
+
+	f2r := bufio.NewReader(f2)
+
+	line, err := f2r.ReadString('\n')
+	require.NoError(t, err)
+	assert.EqualValues(t, "line 1\n", line)
+	_, err = f2r.ReadString('\n')
+	require.ErrorIs(t, err, io.EOF)
+
+	_, err = f1.Write([]byte("line 2\n"))
+	require.NoError(t, err)
+
+	line, err = f2r.ReadString('\n')
+	require.NoError(t, err)
+	assert.EqualValues(t, "line 2\n", line)
+	_, err = f2r.ReadString('\n')
+	require.ErrorIs(t, err, io.EOF)
+}
+
+func TestDbfsSeekWrite(t *testing.T) {
+	defer changeDefaultFileBlockSize(4)()
+
+	f, err := OpenFile(db.DefaultContext, "test2.log", os.O_RDWR|os.O_CREATE)
+	require.NoError(t, err)
+	defer f.Close()
+
+	n, err := f.Write([]byte("111"))
+	require.NoError(t, err)
+
+	_, err = f.Seek(int64(n), io.SeekStart)
+	require.NoError(t, err)
+
+	_, err = f.Write([]byte("222"))
+	require.NoError(t, err)
+
+	_, err = f.Seek(int64(n), io.SeekStart)
+	require.NoError(t, err)
+
+	_, err = f.Write([]byte("333"))
+	require.NoError(t, err)
+
+	fr, err := OpenFile(db.DefaultContext, "test2.log", os.O_RDONLY)
+	require.NoError(t, err)
+	defer f.Close()
+
+	buf, err := io.ReadAll(fr)
+	require.NoError(t, err)
+	assert.EqualValues(t, "111333", string(buf))
+}
diff --git a/models/dbfs/main_test.go b/models/dbfs/main_test.go
new file mode 100644
index 0000000..537ba09
--- /dev/null
+++ b/models/dbfs/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package dbfs
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/error.go b/models/error.go
new file mode 100644
index 0000000..75c5324
--- /dev/null
+++ b/models/error.go
@@ -0,0 +1,552 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"fmt"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrUserOwnRepos represents a "UserOwnRepos" kind of error.
+type ErrUserOwnRepos struct {
+	UID int64
+}
+
+// IsErrUserOwnRepos checks if an error is a ErrUserOwnRepos.
+func IsErrUserOwnRepos(err error) bool {
+	_, ok := err.(ErrUserOwnRepos)
+	return ok
+}
+
+func (err ErrUserOwnRepos) Error() string {
+	return fmt.Sprintf("user still has ownership of repositories [uid: %d]", err.UID)
+}
+
+// ErrUserHasOrgs represents a "UserHasOrgs" kind of error.
+type ErrUserHasOrgs struct {
+	UID int64
+}
+
+// IsErrUserHasOrgs checks if an error is a ErrUserHasOrgs.
+func IsErrUserHasOrgs(err error) bool {
+	_, ok := err.(ErrUserHasOrgs)
+	return ok
+}
+
+func (err ErrUserHasOrgs) Error() string {
+	return fmt.Sprintf("user still has membership of organizations [uid: %d]", err.UID)
+}
+
+// ErrUserOwnPackages notifies that the user (still) owns the packages.
+type ErrUserOwnPackages struct {
+	UID int64
+}
+
+// IsErrUserOwnPackages checks if an error is an ErrUserOwnPackages.
+func IsErrUserOwnPackages(err error) bool {
+	_, ok := err.(ErrUserOwnPackages)
+	return ok
+}
+
+func (err ErrUserOwnPackages) Error() string {
+	return fmt.Sprintf("user still has ownership of packages [uid: %d]", err.UID)
+}
+
+// ErrDeleteLastAdminUser represents a "DeleteLastAdminUser" kind of error.
+type ErrDeleteLastAdminUser struct {
+	UID int64
+}
+
+// IsErrDeleteLastAdminUser checks if an error is a ErrDeleteLastAdminUser.
+func IsErrDeleteLastAdminUser(err error) bool {
+	_, ok := err.(ErrDeleteLastAdminUser)
+	return ok
+}
+
+func (err ErrDeleteLastAdminUser) Error() string {
+	return fmt.Sprintf("can not delete the last admin user [uid: %d]", err.UID)
+}
+
+// ErrNoPendingRepoTransfer is an error type for repositories without a pending
+// transfer request
+type ErrNoPendingRepoTransfer struct {
+	RepoID int64
+}
+
+func (err ErrNoPendingRepoTransfer) Error() string {
+	return fmt.Sprintf("repository doesn't have a pending transfer [repo_id: %d]", err.RepoID)
+}
+
+// IsErrNoPendingTransfer is an error type when a repository has no pending
+// transfers
+func IsErrNoPendingTransfer(err error) bool {
+	_, ok := err.(ErrNoPendingRepoTransfer)
+	return ok
+}
+
+func (err ErrNoPendingRepoTransfer) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrRepoTransferInProgress represents the state of a repository that has an
+// ongoing transfer
+type ErrRepoTransferInProgress struct {
+	Uname string
+	Name  string
+}
+
+// IsErrRepoTransferInProgress checks if an error is a ErrRepoTransferInProgress.
+func IsErrRepoTransferInProgress(err error) bool {
+	_, ok := err.(ErrRepoTransferInProgress)
+	return ok
+}
+
+func (err ErrRepoTransferInProgress) Error() string {
+	return fmt.Sprintf("repository is already being transferred [uname: %s, name: %s]", err.Uname, err.Name)
+}
+
+func (err ErrRepoTransferInProgress) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrInvalidCloneAddr represents a "InvalidCloneAddr" kind of error.
+type ErrInvalidCloneAddr struct {
+	Host               string
+	IsURLError         bool
+	IsInvalidPath      bool
+	IsProtocolInvalid  bool
+	IsPermissionDenied bool
+	LocalPath          bool
+}
+
+// IsErrInvalidCloneAddr checks if an error is a ErrInvalidCloneAddr.
+func IsErrInvalidCloneAddr(err error) bool {
+	_, ok := err.(*ErrInvalidCloneAddr)
+	return ok
+}
+
+func (err *ErrInvalidCloneAddr) Error() string {
+	if err.IsInvalidPath {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided path is invalid", err.Host)
+	}
+	if err.IsProtocolInvalid {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided url protocol is not allowed", err.Host)
+	}
+	if err.IsPermissionDenied {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed.", err.Host)
+	}
+	if err.IsURLError {
+		return fmt.Sprintf("migration/cloning from '%s' is not allowed: the provided url is invalid", err.Host)
+	}
+
+	return fmt.Sprintf("migration/cloning from '%s' is not allowed", err.Host)
+}
+
+func (err *ErrInvalidCloneAddr) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrUpdateTaskNotExist represents a "UpdateTaskNotExist" kind of error.
+type ErrUpdateTaskNotExist struct {
+	UUID string
+}
+
+// IsErrUpdateTaskNotExist checks if an error is a ErrUpdateTaskNotExist.
+func IsErrUpdateTaskNotExist(err error) bool {
+	_, ok := err.(ErrUpdateTaskNotExist)
+	return ok
+}
+
+func (err ErrUpdateTaskNotExist) Error() string {
+	return fmt.Sprintf("update task does not exist [uuid: %s]", err.UUID)
+}
+
+func (err ErrUpdateTaskNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrInvalidTagName represents a "InvalidTagName" kind of error.
+type ErrInvalidTagName struct {
+	TagName string
+}
+
+// IsErrInvalidTagName checks if an error is a ErrInvalidTagName.
+func IsErrInvalidTagName(err error) bool {
+	_, ok := err.(ErrInvalidTagName)
+	return ok
+}
+
+func (err ErrInvalidTagName) Error() string {
+	return fmt.Sprintf("release tag name is not valid [tag_name: %s]", err.TagName)
+}
+
+func (err ErrInvalidTagName) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrProtectedTagName represents a "ProtectedTagName" kind of error.
+type ErrProtectedTagName struct {
+	TagName string
+}
+
+// IsErrProtectedTagName checks if an error is a ErrProtectedTagName.
+func IsErrProtectedTagName(err error) bool {
+	_, ok := err.(ErrProtectedTagName)
+	return ok
+}
+
+func (err ErrProtectedTagName) Error() string {
+	return fmt.Sprintf("release tag name is protected [tag_name: %s]", err.TagName)
+}
+
+func (err ErrProtectedTagName) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrRepoFileAlreadyExists represents a "RepoFileAlreadyExist" kind of error.
+type ErrRepoFileAlreadyExists struct {
+	Path string
+}
+
+// IsErrRepoFileAlreadyExists checks if an error is a ErrRepoFileAlreadyExists.
+func IsErrRepoFileAlreadyExists(err error) bool {
+	_, ok := err.(ErrRepoFileAlreadyExists)
+	return ok
+}
+
+func (err ErrRepoFileAlreadyExists) Error() string {
+	return fmt.Sprintf("repository file already exists [path: %s]", err.Path)
+}
+
+func (err ErrRepoFileAlreadyExists) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrRepoFileDoesNotExist represents a "RepoFileDoesNotExist" kind of error.
+type ErrRepoFileDoesNotExist struct {
+	Path string
+	Name string
+}
+
+// IsErrRepoFileDoesNotExist checks if an error is a ErrRepoDoesNotExist.
+func IsErrRepoFileDoesNotExist(err error) bool {
+	_, ok := err.(ErrRepoFileDoesNotExist)
+	return ok
+}
+
+func (err ErrRepoFileDoesNotExist) Error() string {
+	return fmt.Sprintf("repository file does not exist [path: %s]", err.Path)
+}
+
+func (err ErrRepoFileDoesNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrFilenameInvalid represents a "FilenameInvalid" kind of error.
+type ErrFilenameInvalid struct {
+	Path string
+}
+
+// IsErrFilenameInvalid checks if an error is an ErrFilenameInvalid.
+func IsErrFilenameInvalid(err error) bool {
+	_, ok := err.(ErrFilenameInvalid)
+	return ok
+}
+
+func (err ErrFilenameInvalid) Error() string {
+	return fmt.Sprintf("path contains a malformed path component [path: %s]", err.Path)
+}
+
+func (err ErrFilenameInvalid) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrUserCannotCommit represents "UserCannotCommit" kind of error.
+type ErrUserCannotCommit struct {
+	UserName string
+}
+
+// IsErrUserCannotCommit checks if an error is an ErrUserCannotCommit.
+func IsErrUserCannotCommit(err error) bool {
+	_, ok := err.(ErrUserCannotCommit)
+	return ok
+}
+
+func (err ErrUserCannotCommit) Error() string {
+	return fmt.Sprintf("user cannot commit to repo [user: %s]", err.UserName)
+}
+
+func (err ErrUserCannotCommit) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrFilePathInvalid represents a "FilePathInvalid" kind of error.
+type ErrFilePathInvalid struct {
+	Message string
+	Path    string
+	Name    string
+	Type    git.EntryMode
+}
+
+// IsErrFilePathInvalid checks if an error is an ErrFilePathInvalid.
+func IsErrFilePathInvalid(err error) bool {
+	_, ok := err.(ErrFilePathInvalid)
+	return ok
+}
+
+func (err ErrFilePathInvalid) Error() string {
+	if err.Message != "" {
+		return err.Message
+	}
+	return fmt.Sprintf("path is invalid [path: %s]", err.Path)
+}
+
+func (err ErrFilePathInvalid) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrFilePathProtected represents a "FilePathProtected" kind of error.
+type ErrFilePathProtected struct {
+	Message string
+	Path    string
+}
+
+// IsErrFilePathProtected checks if an error is an ErrFilePathProtected.
+func IsErrFilePathProtected(err error) bool {
+	_, ok := err.(ErrFilePathProtected)
+	return ok
+}
+
+func (err ErrFilePathProtected) Error() string {
+	if err.Message != "" {
+		return err.Message
+	}
+	return fmt.Sprintf("path is protected and can not be changed [path: %s]", err.Path)
+}
+
+func (err ErrFilePathProtected) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrDisallowedToMerge represents an error that a branch is protected and the current user is not allowed to modify it.
+type ErrDisallowedToMerge struct {
+	Reason string
+}
+
+// IsErrDisallowedToMerge checks if an error is an ErrDisallowedToMerge.
+func IsErrDisallowedToMerge(err error) bool {
+	_, ok := err.(ErrDisallowedToMerge)
+	return ok
+}
+
+func (err ErrDisallowedToMerge) Error() string {
+	return fmt.Sprintf("not allowed to merge [reason: %s]", err.Reason)
+}
+
+func (err ErrDisallowedToMerge) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrTagAlreadyExists represents an error that tag with such name already exists.
+type ErrTagAlreadyExists struct {
+	TagName string
+}
+
+// IsErrTagAlreadyExists checks if an error is an ErrTagAlreadyExists.
+func IsErrTagAlreadyExists(err error) bool {
+	_, ok := err.(ErrTagAlreadyExists)
+	return ok
+}
+
+func (err ErrTagAlreadyExists) Error() string {
+	return fmt.Sprintf("tag already exists [name: %s]", err.TagName)
+}
+
+func (err ErrTagAlreadyExists) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrSHADoesNotMatch represents a "SHADoesNotMatch" kind of error.
+type ErrSHADoesNotMatch struct {
+	Path       string
+	GivenSHA   string
+	CurrentSHA string
+}
+
+// IsErrSHADoesNotMatch checks if an error is a ErrSHADoesNotMatch.
+func IsErrSHADoesNotMatch(err error) bool {
+	_, ok := err.(ErrSHADoesNotMatch)
+	return ok
+}
+
+func (err ErrSHADoesNotMatch) Error() string {
+	return fmt.Sprintf("sha does not match [given: %s, expected: %s]", err.GivenSHA, err.CurrentSHA)
+}
+
+// ErrSHANotFound represents a "SHADoesNotMatch" kind of error.
+type ErrSHANotFound struct {
+	SHA string
+}
+
+// IsErrSHANotFound checks if an error is a ErrSHANotFound.
+func IsErrSHANotFound(err error) bool {
+	_, ok := err.(ErrSHANotFound)
+	return ok
+}
+
+func (err ErrSHANotFound) Error() string {
+	return fmt.Sprintf("sha not found [%s]", err.SHA)
+}
+
+func (err ErrSHANotFound) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrCommitIDDoesNotMatch represents a "CommitIDDoesNotMatch" kind of error.
+type ErrCommitIDDoesNotMatch struct {
+	GivenCommitID   string
+	CurrentCommitID string
+}
+
+// IsErrCommitIDDoesNotMatch checks if an error is a ErrCommitIDDoesNotMatch.
+func IsErrCommitIDDoesNotMatch(err error) bool {
+	_, ok := err.(ErrCommitIDDoesNotMatch)
+	return ok
+}
+
+func (err ErrCommitIDDoesNotMatch) Error() string {
+	return fmt.Sprintf("file CommitID does not match [given: %s, expected: %s]", err.GivenCommitID, err.CurrentCommitID)
+}
+
+// ErrSHAOrCommitIDNotProvided represents a "SHAOrCommitIDNotProvided" kind of error.
+type ErrSHAOrCommitIDNotProvided struct{}
+
+// IsErrSHAOrCommitIDNotProvided checks if an error is a ErrSHAOrCommitIDNotProvided.
+func IsErrSHAOrCommitIDNotProvided(err error) bool {
+	_, ok := err.(ErrSHAOrCommitIDNotProvided)
+	return ok
+}
+
+func (err ErrSHAOrCommitIDNotProvided) Error() string {
+	return "a SHA or commit ID must be proved when updating a file"
+}
+
+// ErrInvalidMergeStyle represents an error if merging with disabled merge strategy
+type ErrInvalidMergeStyle struct {
+	ID    int64
+	Style repo_model.MergeStyle
+}
+
+// IsErrInvalidMergeStyle checks if an error is a ErrInvalidMergeStyle.
+func IsErrInvalidMergeStyle(err error) bool {
+	_, ok := err.(ErrInvalidMergeStyle)
+	return ok
+}
+
+func (err ErrInvalidMergeStyle) Error() string {
+	return fmt.Sprintf("merge strategy is not allowed or is invalid [repo_id: %d, strategy: %s]",
+		err.ID, err.Style)
+}
+
+func (err ErrInvalidMergeStyle) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrMergeConflicts represents an error if merging fails with a conflict
+type ErrMergeConflicts struct {
+	Style  repo_model.MergeStyle
+	StdOut string
+	StdErr string
+	Err    error
+}
+
+// IsErrMergeConflicts checks if an error is a ErrMergeConflicts.
+func IsErrMergeConflicts(err error) bool {
+	_, ok := err.(ErrMergeConflicts)
+	return ok
+}
+
+func (err ErrMergeConflicts) Error() string {
+	return fmt.Sprintf("Merge Conflict Error: %v: %s\n%s", err.Err, err.StdErr, err.StdOut)
+}
+
+// ErrMergeUnrelatedHistories represents an error if merging fails due to unrelated histories
+type ErrMergeUnrelatedHistories struct {
+	Style  repo_model.MergeStyle
+	StdOut string
+	StdErr string
+	Err    error
+}
+
+// IsErrMergeUnrelatedHistories checks if an error is a ErrMergeUnrelatedHistories.
+func IsErrMergeUnrelatedHistories(err error) bool {
+	_, ok := err.(ErrMergeUnrelatedHistories)
+	return ok
+}
+
+func (err ErrMergeUnrelatedHistories) Error() string {
+	return fmt.Sprintf("Merge UnrelatedHistories Error: %v: %s\n%s", err.Err, err.StdErr, err.StdOut)
+}
+
+// ErrMergeDivergingFastForwardOnly represents an error if a fast-forward-only merge fails because the branches diverge
+type ErrMergeDivergingFastForwardOnly struct {
+	StdOut string
+	StdErr string
+	Err    error
+}
+
+// IsErrMergeDivergingFastForwardOnly checks if an error is a ErrMergeDivergingFastForwardOnly.
+func IsErrMergeDivergingFastForwardOnly(err error) bool {
+	_, ok := err.(ErrMergeDivergingFastForwardOnly)
+	return ok
+}
+
+func (err ErrMergeDivergingFastForwardOnly) Error() string {
+	return fmt.Sprintf("Merge DivergingFastForwardOnly Error: %v: %s\n%s", err.Err, err.StdErr, err.StdOut)
+}
+
+// ErrRebaseConflicts represents an error if rebase fails with a conflict
+type ErrRebaseConflicts struct {
+	Style     repo_model.MergeStyle
+	CommitSHA string
+	StdOut    string
+	StdErr    string
+	Err       error
+}
+
+// IsErrRebaseConflicts checks if an error is a ErrRebaseConflicts.
+func IsErrRebaseConflicts(err error) bool {
+	_, ok := err.(ErrRebaseConflicts)
+	return ok
+}
+
+func (err ErrRebaseConflicts) Error() string {
+	return fmt.Sprintf("Rebase Error: %v: Whilst Rebasing: %s\n%s\n%s", err.Err, err.CommitSHA, err.StdErr, err.StdOut)
+}
+
+// ErrPullRequestHasMerged represents a "PullRequestHasMerged"-error
+type ErrPullRequestHasMerged struct {
+	ID         int64
+	IssueID    int64
+	HeadRepoID int64
+	BaseRepoID int64
+	HeadBranch string
+	BaseBranch string
+}
+
+// IsErrPullRequestHasMerged checks if an error is a ErrPullRequestHasMerged.
+func IsErrPullRequestHasMerged(err error) bool {
+	_, ok := err.(ErrPullRequestHasMerged)
+	return ok
+}
+
+// Error does pretty-printing :D
+func (err ErrPullRequestHasMerged) Error() string {
+	return fmt.Sprintf("pull request has merged [id: %d, issue_id: %d, head_repo_id: %d, base_repo_id: %d, head_branch: %s, base_branch: %s]",
+		err.ID, err.IssueID, err.HeadRepoID, err.BaseRepoID, err.HeadBranch, err.BaseBranch)
+}
diff --git a/models/fixture_generation.go b/models/fixture_generation.go
new file mode 100644
index 0000000..6234cae
--- /dev/null
+++ b/models/fixture_generation.go
@@ -0,0 +1,50 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+)
+
+// GetYamlFixturesAccess returns a string containing the contents
+// for the access table, as recalculated using repo.RecalculateAccesses()
+func GetYamlFixturesAccess(ctx context.Context) (string, error) {
+	repos := make([]*repo_model.Repository, 0, 50)
+	if err := db.GetEngine(ctx).Find(&repos); err != nil {
+		return "", err
+	}
+
+	for _, repo := range repos {
+		repo.MustOwner(ctx)
+		if err := access_model.RecalculateAccesses(ctx, repo); err != nil {
+			return "", err
+		}
+	}
+
+	var b strings.Builder
+
+	accesses := make([]*access_model.Access, 0, 200)
+	if err := db.GetEngine(ctx).OrderBy("user_id, repo_id").Find(&accesses); err != nil {
+		return "", err
+	}
+
+	for i, a := range accesses {
+		fmt.Fprintf(&b, "-\n")
+		fmt.Fprintf(&b, "  id: %d\n", i+1)
+		fmt.Fprintf(&b, "  user_id: %d\n", a.UserID)
+		fmt.Fprintf(&b, "  repo_id: %d\n", a.RepoID)
+		fmt.Fprintf(&b, "  mode: %d\n", a.Mode)
+		if i < len(accesses)-1 {
+			fmt.Fprintf(&b, "\n")
+		}
+	}
+
+	return b.String(), nil
+}
diff --git a/models/fixture_test.go b/models/fixture_test.go
new file mode 100644
index 0000000..33429c8
--- /dev/null
+++ b/models/fixture_test.go
@@ -0,0 +1,36 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestFixtureGeneration(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(ctx context.Context, gen func(ctx context.Context) (string, error), name string) {
+		expected, err := gen(ctx)
+		require.NoError(t, err)
+
+		p := filepath.Join(unittest.FixturesDir(), name+".yml")
+		bytes, err := os.ReadFile(p)
+		require.NoError(t, err)
+
+		data := string(util.NormalizeEOL(bytes))
+		assert.EqualValues(t, expected, data, "Differences detected for %s", p)
+	}
+
+	test(db.DefaultContext, GetYamlFixturesAccess, "access")
+}
diff --git a/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/issue.yml b/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/issue.yml
new file mode 100644
index 0000000..7fe592e
--- /dev/null
+++ b/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/issue.yml
@@ -0,0 +1,12 @@
+-
+  id: 1001
+  repo_id: 1
+  index: 1001
+  poster_id: 1
+  name: issue1
+  content: content for the first issue
+  is_pull: true
+  created: 111111111
+  created_unix: 946684800
+  updated_unix: 978307200
+  is_closed: false
diff --git a/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/pull_request.yml b/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/pull_request.yml
new file mode 100644
index 0000000..7e7c0d1
--- /dev/null
+++ b/models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/pull_request.yml
@@ -0,0 +1,13 @@
+-
+  id: 1001
+  type: 0 # pull request
+  status: 2 # mergeable
+  issue_id: 1001
+  index: 1001
+  head_repo_id: 1
+  base_repo_id: 1
+  head_branch: branchmax
+  base_branch: master
+  merge_base: 4a357436d925b5c974181ff12a994538ddc5a269
+  has_merged: false
+  flow: 0
diff --git a/models/fixtures/TestParseCommitWithSSHSignature/public_key.yml b/models/fixtures/TestParseCommitWithSSHSignature/public_key.yml
new file mode 100644
index 0000000..f76dabb
--- /dev/null
+++ b/models/fixtures/TestParseCommitWithSSHSignature/public_key.yml
@@ -0,0 +1,13 @@
+-
+  id: 1000
+  owner_id: 2
+  name: user2@localhost
+  fingerprint: "SHA256:TKfwbZMR7e9OnlV2l1prfah1TXH8CmqR0PvFEXVCXA4"
+  content: "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKBknvWcuxM/W0iXGkzY4f2O6feX+Q7o46pKcxUbcOgh user2@localhost"
+  # private key (base64-ed) 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
+  mode: 2
+  type: 1
+  verified: true
+  created_unix: 1559593109
+  updated_unix: 1565224552
+  login_source_id: 0
diff --git a/models/fixtures/access.yml b/models/fixtures/access.yml
new file mode 100644
index 0000000..641c453
--- /dev/null
+++ b/models/fixtures/access.yml
@@ -0,0 +1,161 @@
+-
+  id: 1
+  user_id: 2
+  repo_id: 3
+  mode: 4
+
+-
+  id: 2
+  user_id: 2
+  repo_id: 5
+  mode: 4
+
+-
+  id: 3
+  user_id: 2
+  repo_id: 24
+  mode: 2
+
+-
+  id: 4
+  user_id: 2
+  repo_id: 32
+  mode: 4
+
+-
+  id: 5
+  user_id: 4
+  repo_id: 3
+  mode: 2
+
+-
+  id: 6
+  user_id: 4
+  repo_id: 4
+  mode: 2
+
+-
+  id: 7
+  user_id: 4
+  repo_id: 40
+  mode: 2
+
+-
+  id: 8
+  user_id: 15
+  repo_id: 21
+  mode: 2
+
+-
+  id: 9
+  user_id: 15
+  repo_id: 22
+  mode: 2
+
+-
+  id: 10
+  user_id: 15
+  repo_id: 23
+  mode: 4
+
+-
+  id: 11
+  user_id: 15
+  repo_id: 24
+  mode: 4
+
+-
+  id: 12
+  user_id: 15
+  repo_id: 32
+  mode: 2
+
+-
+  id: 13
+  user_id: 18
+  repo_id: 21
+  mode: 2
+
+-
+  id: 14
+  user_id: 18
+  repo_id: 22
+  mode: 2
+
+-
+  id: 15
+  user_id: 18
+  repo_id: 23
+  mode: 4
+
+-
+  id: 16
+  user_id: 18
+  repo_id: 24
+  mode: 4
+
+-
+  id: 17
+  user_id: 20
+  repo_id: 24
+  mode: 1
+
+-
+  id: 18
+  user_id: 20
+  repo_id: 27
+  mode: 4
+
+-
+  id: 19
+  user_id: 20
+  repo_id: 28
+  mode: 4
+
+-
+  id: 20
+  user_id: 29
+  repo_id: 4
+  mode: 2
+
+-
+  id: 21
+  user_id: 29
+  repo_id: 24
+  mode: 1
+
+-
+  id: 22
+  user_id: 31
+  repo_id: 27
+  mode: 4
+
+-
+  id: 23
+  user_id: 31
+  repo_id: 28
+  mode: 4
+
+-
+  id: 24
+  user_id: 38
+  repo_id: 60
+  mode: 2
+
+-
+  id: 25
+  user_id: 38
+  repo_id: 61
+  mode: 1
+
+-
+  id: 26
+  user_id: 39
+  repo_id: 61
+  mode: 1
+
+-
+  id: 27
+  user_id: 40
+  repo_id: 61
+  mode: 4
diff --git a/models/fixtures/access_token.yml b/models/fixtures/access_token.yml
new file mode 100644
index 0000000..0744255
--- /dev/null
+++ b/models/fixtures/access_token.yml
@@ -0,0 +1,33 @@
+-
+  id: 1
+  uid: 1
+  name: Token A
+  # token: d2c6c1ba3890b309189a8e618c72a162e4efbf36
+  token_hash: 2b3668e11cb82d3af8c6e4524fc7841297668f5008d1626f0ad3417e9fa39af84c268248b78c481daa7e5dc437784003494f
+  token_salt: QuSiZr1byZ
+  token_last_eight: e4efbf36
+  created_unix: 946687980
+  updated_unix: 946687980
+
+-
+  id: 2
+  uid: 1
+  name: Token B
+  # token: 4c6f36e6cf498e2a448662f915d932c09c5a146c
+  token_hash: 1a0e32a231ebbd582dc626c1543a42d3c63d4fa76c07c72862721467c55e8f81c923d60700f0528b5f5f443f055559d3a279
+  token_salt: Lfwopukrq5
+  token_last_eight: 9c5a146c
+  created_unix: 946687980
+  updated_unix: 946687980
+
+-
+  id: 3
+  uid: 2
+  name: Token A
+  # token: 90a18faa671dc43924b795806ffe4fd169d28c91
+  token_hash: d6d404048048812d9e911d93aefbe94fc768d4876fdf75e3bef0bdc67828e0af422846d3056f2f25ec35c51dc92075685ec5
+  token_salt: 99ArgXKlQQ
+  token_last_eight: 69d28c91
+  created_unix: 946687980
+  updated_unix: 946687980
+  # commented out tokens so you can see what they are in plaintext
diff --git a/models/fixtures/action.yml b/models/fixtures/action.yml
new file mode 100644
index 0000000..b2febb4
--- /dev/null
+++ b/models/fixtures/action.yml
@@ -0,0 +1,76 @@
+-
+  id: 1
+  user_id: 2
+  op_type: 12 # close issue
+  act_user_id: 2
+  repo_id: 2 # private
+  is_private: true
+  created_unix: 1603228283
+  content: '1|' # issueId 4
+
+-
+  id: 2
+  user_id: 3
+  op_type: 2 # rename repo
+  act_user_id: 2
+  repo_id: 3 # private
+  is_private: true
+  content: oldRepoName
+
+-
+  id: 3
+  user_id: 11
+  op_type: 1 # create repo
+  act_user_id: 11
+  repo_id: 9 # public
+  is_private: false
+
+-
+  id: 4
+  user_id: 16
+  op_type: 12 # close issue
+  act_user_id: 16
+  repo_id: 22 # private
+  is_private: true
+  created_unix: 1603267920
+
+- id: 5
+  user_id: 10
+  op_type: 1 # create repo
+  act_user_id: 10
+  repo_id: 6 # private
+  is_private: true
+  created_unix: 1603010100
+
+- id: 6
+  user_id: 10
+  op_type: 1 # create repo
+  act_user_id: 10
+  repo_id: 7 # private
+  is_private: true
+  created_unix: 1603011300
+
+- id: 7
+  user_id: 10
+  op_type: 1 # create repo
+  act_user_id: 10
+  repo_id: 8 # public
+  is_private: false
+  created_unix: 1603011540 # grouped with id:7
+
+- id: 8
+  user_id: 1
+  op_type: 12 # close issue
+  act_user_id: 1
+  repo_id: 1700 # dangling intentional
+  is_private: false
+  created_unix: 1603011541
+
+- id: 9
+  user_id: 34
+  op_type: 12 # close issue
+  act_user_id: 34
+  repo_id: 1 # public
+  is_private: false
+  created_unix: 1680454039
+  content: '4|' # issueId 5
diff --git a/models/fixtures/action_run.yml b/models/fixtures/action_run.yml
new file mode 100644
index 0000000..9c60b35
--- /dev/null
+++ b/models/fixtures/action_run.yml
@@ -0,0 +1,435 @@
+-
+  id: 791
+  title: "update actions"
+  repo_id: 4
+  owner_id: 1
+  workflow_id: "artifact.yaml"
+  index: 187
+  trigger_user_id: 1
+  ref: "refs/heads/master"
+  commit_sha: "c2d72f548424103f01ee1dc02889c1e2bff816b0"
+  event: "push"
+  is_fork_pull_request: 0
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+  created: 1683636108
+  updated: 1683636626
+  need_approval: 0
+  approved_by: 0
+  event_payload: |
+    {
+      "after": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+      "before": "0000000000000000000000000000000000000000",
+      "commits": [
+        {
+          "added": [
+            ".forgejo/workflows/test.yml"
+          ],
+          "author": {
+            "email": "root@example.com",
+            "name": "username",
+            "username": "root"
+          },
+          "committer": {
+            "email": "root@example.com",
+            "name": "username",
+            "username": "root"
+          },
+          "id": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+          "message": "initial commit\n",
+          "modified": [],
+          "removed": [],
+          "timestamp": "2024-01-24T18:59:25Z",
+          "url": "http://10.201.14.40:3000/root/example-push/commit/7a3858dc7f059543a8807a8b551304b7e362a7ef",
+          "verification": null
+        }
+      ],
+      "compare_url": "http://10.201.14.40:3000/",
+      "head_commit": {
+        "added": [
+          ".forgejo/workflows/test.yml"
+        ],
+        "author": {
+          "email": "root@example.com",
+          "name": "username",
+          "username": "root"
+        },
+        "committer": {
+          "email": "root@example.com",
+          "name": "username",
+          "username": "root"
+        },
+        "id": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+        "message": "initial commit\n",
+        "modified": [],
+        "removed": [],
+        "timestamp": "2024-01-24T18:59:25Z",
+        "url": "http://10.201.14.40:3000/root/example-push/commit/7a3858dc7f059543a8807a8b551304b7e362a7ef",
+        "verification": null
+      },
+      "pusher": {
+        "active": false,
+        "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+        "created": "2024-01-24T18:57:32Z",
+        "description": "",
+        "email": "root@noreply.10.201.14.40",
+        "followers_count": 0,
+        "following_count": 0,
+        "full_name": "",
+        "id": 1,
+        "is_admin": false,
+        "language": "",
+        "last_login": "0001-01-01T00:00:00Z",
+        "location": "",
+        "login": "root",
+        "login_name": "",
+        "prohibit_login": false,
+        "restricted": false,
+        "starred_repos_count": 0,
+        "username": "root",
+        "visibility": "public",
+        "website": ""
+      },
+      "ref": "refs/heads/main",
+      "repository": {
+        "allow_merge_commits": true,
+        "allow_rebase": true,
+        "allow_rebase_explicit": true,
+        "allow_rebase_update": true,
+        "allow_squash_merge": true,
+        "archived": false,
+        "archived_at": "1970-01-01T00:00:00Z",
+        "avatar_url": "",
+        "clone_url": "http://10.201.14.40:3000/root/example-push.git",
+        "created_at": "2024-01-24T18:59:25Z",
+        "default_allow_maintainer_edit": false,
+        "default_branch": "main",
+        "default_delete_branch_after_merge": false,
+        "default_merge_style": "merge",
+        "description": "",
+        "empty": false,
+        "fork": false,
+        "forks_count": 0,
+        "full_name": "root/example-push",
+        "has_actions": true,
+        "has_issues": true,
+        "has_packages": true,
+        "has_projects": true,
+        "has_pull_requests": true,
+        "has_releases": true,
+        "has_wiki": true,
+        "html_url": "http://10.201.14.40:3000/root/example-push",
+        "id": 2,
+        "ignore_whitespace_conflicts": false,
+        "internal": false,
+        "internal_tracker": {
+          "allow_only_contributors_to_track_time": true,
+          "enable_issue_dependencies": true,
+          "enable_time_tracker": true
+        },
+        "language": "",
+        "languages_url": "http://10.201.14.40:3000/api/v1/repos/root/example-push/languages",
+        "link": "",
+        "mirror": false,
+        "mirror_interval": "",
+        "mirror_updated": "0001-01-01T00:00:00Z",
+        "name": "example-push",
+        "object_format_name": "",
+        "open_issues_count": 0,
+        "open_pr_counter": 0,
+        "original_url": "",
+        "owner": {
+          "active": false,
+          "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+          "created": "2024-01-24T18:57:32Z",
+          "description": "",
+          "email": "root@example.com",
+          "followers_count": 0,
+          "following_count": 0,
+          "full_name": "",
+          "id": 1,
+          "is_admin": false,
+          "language": "",
+          "last_login": "0001-01-01T00:00:00Z",
+          "location": "",
+          "login": "root",
+          "login_name": "",
+          "prohibit_login": false,
+          "restricted": false,
+          "starred_repos_count": 0,
+          "username": "root",
+          "visibility": "public",
+          "website": ""
+        },
+        "parent": null,
+        "permissions": {
+          "admin": true,
+          "pull": true,
+          "push": true
+        },
+        "private": false,
+        "release_counter": 0,
+        "repo_transfer": null,
+        "size": 25,
+        "ssh_url": "forgejo@10.201.14.40:root/example-push.git",
+        "stars_count": 0,
+        "template": false,
+        "updated_at": "2024-01-24T18:59:25Z",
+        "url": "http://10.201.14.40:3000/api/v1/repos/root/example-push",
+        "watchers_count": 1,
+        "website": ""
+      },
+      "sender": {
+        "active": false,
+        "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+        "created": "2024-01-24T18:57:32Z",
+        "description": "",
+        "email": "root@noreply.10.201.14.40",
+        "followers_count": 0,
+        "following_count": 0,
+        "full_name": "",
+        "id": 1,
+        "is_admin": false,
+        "language": "",
+        "last_login": "0001-01-01T00:00:00Z",
+        "location": "",
+        "login": "root",
+        "login_name": "",
+        "prohibit_login": false,
+        "restricted": false,
+        "starred_repos_count": 0,
+        "username": "root",
+        "visibility": "public",
+        "website": ""
+      },
+      "total_commits": 0
+    }
+
+-
+  id: 792
+  title: "update actions"
+  repo_id: 4
+  owner_id: 1
+  workflow_id: "artifact.yaml"
+  index: 188
+  trigger_user_id: 1
+  ref: "refs/heads/master"
+  commit_sha: "c2d72f548424103f01ee1dc02889c1e2bff816b0"
+  event: "push"
+  is_fork_pull_request: 0
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+  created: 1683636108
+  updated: 1683636626
+  need_approval: 0
+  approved_by: 0
+  event_payload: |
+    {
+      "after": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+      "before": "0000000000000000000000000000000000000000",
+      "commits": [
+        {
+          "added": [
+            ".forgejo/workflows/test.yml"
+          ],
+          "author": {
+            "email": "root@example.com",
+            "name": "username",
+            "username": "root"
+          },
+          "committer": {
+            "email": "root@example.com",
+            "name": "username",
+            "username": "root"
+          },
+          "id": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+          "message": "initial commit\n",
+          "modified": [],
+          "removed": [],
+          "timestamp": "2024-01-24T18:59:25Z",
+          "url": "http://10.201.14.40:3000/root/example-push/commit/7a3858dc7f059543a8807a8b551304b7e362a7ef",
+          "verification": null
+        }
+      ],
+      "compare_url": "http://10.201.14.40:3000/",
+      "head_commit": {
+        "added": [
+          ".forgejo/workflows/test.yml"
+        ],
+        "author": {
+          "email": "root@example.com",
+          "name": "username",
+          "username": "root"
+        },
+        "committer": {
+          "email": "root@example.com",
+          "name": "username",
+          "username": "root"
+        },
+        "id": "7a3858dc7f059543a8807a8b551304b7e362a7ef",
+        "message": "initial commit\n",
+        "modified": [],
+        "removed": [],
+        "timestamp": "2024-01-24T18:59:25Z",
+        "url": "http://10.201.14.40:3000/root/example-push/commit/7a3858dc7f059543a8807a8b551304b7e362a7ef",
+        "verification": null
+      },
+      "pusher": {
+        "active": false,
+        "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+        "created": "2024-01-24T18:57:32Z",
+        "description": "",
+        "email": "root@noreply.10.201.14.40",
+        "followers_count": 0,
+        "following_count": 0,
+        "full_name": "",
+        "id": 1,
+        "is_admin": false,
+        "language": "",
+        "last_login": "0001-01-01T00:00:00Z",
+        "location": "",
+        "login": "root",
+        "login_name": "",
+        "prohibit_login": false,
+        "restricted": false,
+        "starred_repos_count": 0,
+        "username": "root",
+        "visibility": "public",
+        "website": ""
+      },
+      "ref": "refs/heads/main",
+      "repository": {
+        "allow_merge_commits": true,
+        "allow_rebase": true,
+        "allow_rebase_explicit": true,
+        "allow_rebase_update": true,
+        "allow_squash_merge": true,
+        "archived": false,
+        "archived_at": "1970-01-01T00:00:00Z",
+        "avatar_url": "",
+        "clone_url": "http://10.201.14.40:3000/root/example-push.git",
+        "created_at": "2024-01-24T18:59:25Z",
+        "default_allow_maintainer_edit": false,
+        "default_branch": "main",
+        "default_delete_branch_after_merge": false,
+        "default_merge_style": "merge",
+        "description": "",
+        "empty": false,
+        "fork": false,
+        "forks_count": 0,
+        "full_name": "root/example-push",
+        "has_actions": true,
+        "has_issues": true,
+        "has_packages": true,
+        "has_projects": true,
+        "has_pull_requests": true,
+        "has_releases": true,
+        "has_wiki": true,
+        "html_url": "http://10.201.14.40:3000/root/example-push",
+        "id": 2,
+        "ignore_whitespace_conflicts": false,
+        "internal": false,
+        "internal_tracker": {
+          "allow_only_contributors_to_track_time": true,
+          "enable_issue_dependencies": true,
+          "enable_time_tracker": true
+        },
+        "language": "",
+        "languages_url": "http://10.201.14.40:3000/api/v1/repos/root/example-push/languages",
+        "link": "",
+        "mirror": false,
+        "mirror_interval": "",
+        "mirror_updated": "0001-01-01T00:00:00Z",
+        "name": "example-push",
+        "object_format_name": "",
+        "open_issues_count": 0,
+        "open_pr_counter": 0,
+        "original_url": "",
+        "owner": {
+          "active": false,
+          "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+          "created": "2024-01-24T18:57:32Z",
+          "description": "",
+          "email": "root@example.com",
+          "followers_count": 0,
+          "following_count": 0,
+          "full_name": "",
+          "id": 1,
+          "is_admin": false,
+          "language": "",
+          "last_login": "0001-01-01T00:00:00Z",
+          "location": "",
+          "login": "root",
+          "login_name": "",
+          "prohibit_login": false,
+          "restricted": false,
+          "starred_repos_count": 0,
+          "username": "root",
+          "visibility": "public",
+          "website": ""
+        },
+        "parent": null,
+        "permissions": {
+          "admin": true,
+          "pull": true,
+          "push": true
+        },
+        "private": false,
+        "release_counter": 0,
+        "repo_transfer": null,
+        "size": 25,
+        "ssh_url": "forgejo@10.201.14.40:root/example-push.git",
+        "stars_count": 0,
+        "template": false,
+        "updated_at": "2024-01-24T18:59:25Z",
+        "url": "http://10.201.14.40:3000/api/v1/repos/root/example-push",
+        "watchers_count": 1,
+        "website": ""
+      },
+      "sender": {
+        "active": false,
+        "avatar_url": "http://10.201.14.40:3000/avatars/04edfc0ef6c6cf6d6b88fbc69f9f9071",
+        "created": "2024-01-24T18:57:32Z",
+        "description": "",
+        "email": "root@noreply.10.201.14.40",
+        "followers_count": 0,
+        "following_count": 0,
+        "full_name": "",
+        "id": 1,
+        "is_admin": false,
+        "language": "",
+        "last_login": "0001-01-01T00:00:00Z",
+        "location": "",
+        "login": "root",
+        "login_name": "",
+        "prohibit_login": false,
+        "restricted": false,
+        "starred_repos_count": 0,
+        "username": "root",
+        "visibility": "public",
+        "website": ""
+      },
+      "total_commits": 0
+    }
+-
+  id: 891
+  title: "update actions"
+  repo_id: 1
+  owner_id: 1
+  workflow_id: "artifact.yaml"
+  index: 187
+  trigger_user_id: 1
+  ref: "refs/heads/branch2"
+  commit_sha: "985f0301dba5e7b34be866819cd15ad3d8f508ee"
+  event: "push"
+  is_fork_pull_request: 0
+  status: 1 # success
+  started: 1683636528
+  stopped: 1683636626
+  created: 1683636108
+  updated: 1683636626
+  need_approval: 0
+  approved_by: 0
+  event_payload: '{"head_commit":{"id":"5f22f7d0d95d614d25a5b68592adb345a4b5c7fd"}}'
diff --git a/models/fixtures/action_run_job.yml b/models/fixtures/action_run_job.yml
new file mode 100644
index 0000000..0b02d0e
--- /dev/null
+++ b/models/fixtures/action_run_job.yml
@@ -0,0 +1,42 @@
+-
+  id: 192
+  run_id: 791
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  name: job_2
+  attempt: 1
+  job_id: job_2
+  task_id: 47
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+-
+  id: 193
+  run_id: 792
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  name: job_2
+  attempt: 1
+  job_id: job_2
+  task_id: 48
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+-
+  id: 292
+  run_id: 891
+  repo_id: 1
+  owner_id: 1
+  commit_sha: 985f0301dba5e7b34be866819cd15ad3d8f508ee
+  is_fork_pull_request: 0
+  name: job_2
+  attempt: 1
+  job_id: job_2
+  task_id: 47
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
diff --git a/models/fixtures/action_runner.yml b/models/fixtures/action_runner.yml
new file mode 100644
index 0000000..94deac9
--- /dev/null
+++ b/models/fixtures/action_runner.yml
@@ -0,0 +1,20 @@
+-
+  # A global runner
+  # Secret is 7e577e577e577e57feedfacefeedfacefeedface
+  id: 12345678
+  uuid: "37653537-3765-3537-3765-353737653537"
+  name: "test"
+  version: ""
+  owner_id: 0
+  repo_id: 0
+  description: ""
+  base: 0
+  repo_range: ""
+  token_hash: "3af8a56b850dba8848044385fedcfa4d9432e17de9f9803e4d279991394ac2945066ceb9a5e7cbe60a087d90d4bad03a8f9b"
+  token_salt: "832f8529db6151a1c3c605dd7570b58f"
+  last_online: 0
+  last_active: 0
+  agent_labels: '["woop", "doop"]'
+  created: 1716104432
+  updated: 1716104432
+  deleted: ~
diff --git a/models/fixtures/action_runner_token.yml b/models/fixtures/action_runner_token.yml
new file mode 100644
index 0000000..6520b7f
--- /dev/null
+++ b/models/fixtures/action_runner_token.yml
@@ -0,0 +1,35 @@
+-
+  id: 1 # instance scope
+  token: xeiWBL5kuTYxGPynHCqQdoeYmJAeG3IzGXCYTrDX
+  owner_id: 0
+  repo_id: 0
+  is_active: 1
+  created: 1695617748
+  updated: 1695617748
+
+-
+  id: 2 # user scope and can't be used
+  token: vohJB9QcZuSv1gAXESTk2uqpSjHhsKT9j4zYF84x
+  owner_id: 1
+  repo_id: 0
+  is_active: 0
+  created: 1695617749
+  updated: 1695617749
+
+-
+  id: 3 # user scope and can be used
+  token: gjItAeJ3CA74hNPmPPo0Zco8I1eMaNcP1jVifjOE
+  owner_id: 1
+  repo_id: 0
+  is_active: 1
+  created: 1695617750
+  updated: 1695617750
+
+-
+  id: 4 # repo scope
+  token: NOjLubxzFxPGhPXflZknys0gjVvQNhomFbAYuhbH
+  owner_id: 0
+  repo_id: 1
+  is_active: 1
+  created: 1695617751
+  updated: 1695617751
diff --git a/models/fixtures/action_task.yml b/models/fixtures/action_task.yml
new file mode 100644
index 0000000..d88a8ed
--- /dev/null
+++ b/models/fixtures/action_task.yml
@@ -0,0 +1,59 @@
+-
+  id: 46
+  attempt: 3
+  runner_id: 1
+  status: 3 # 3 is the status code for "cancelled"
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: 6d8ef48297195edcc8e22c70b3020eaa06c52976db67d39b4260c64a69a2cc1508825121b7b8394e48e00b1bf8718b2aaaaa
+  token_salt: eeeeeeee
+  token_last_eight: eeeeeeee
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0
+-
+  id: 47
+  job_id: 192
+  attempt: 3
+  runner_id: 1
+  status: 6 # 6 is the status code for "running", running task can upload artifacts
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: 6d8ef48297195edcc8e22c70b3020eaa06c52976db67d39b4260c64a69a2cc1508825121b7b8394e48e00b1bf8718b2a867e
+  token_salt: jVuKnSPGgy
+  token_last_eight: eeb1a71a
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0
+-
+  id: 48
+  job_id: 193
+  attempt: 1
+  runner_id: 1
+  status: 6 # 6 is the status code for "running", running task can upload artifacts
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: ffffcfffffffbffffffffffffffffefffffffafffffffffffffffffffffffffffffdffffffffffffffffffffffffffffffff
+  token_salt: ffffffffff
+  token_last_eight: ffffffff
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0
diff --git a/models/fixtures/attachment.yml b/models/fixtures/attachment.yml
new file mode 100644
index 0000000..7882d8b
--- /dev/null
+++ b/models/fixtures/attachment.yml
@@ -0,0 +1,155 @@
+-
+  id: 1
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11
+  repo_id: 1
+  issue_id: 1
+  release_id: 0
+  uploader_id: 0
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 2
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a12
+  repo_id: 2
+  issue_id: 4
+  release_id: 0
+  uploader_id: 0
+  comment_id: 0
+  name: attach2
+  download_count: 1
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 3
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a13
+  repo_id: 1
+  issue_id: 2
+  release_id: 0
+  uploader_id: 0
+  comment_id: 1
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 4
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a14
+  repo_id: 1
+  issue_id: 3
+  release_id: 0
+  uploader_id: 0
+  comment_id: 1
+  name: attach2
+  download_count: 1
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 5
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a15
+  repo_id: 2
+  issue_id: 4
+  release_id: 0
+  uploader_id: 0
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 6
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a16
+  repo_id: 1
+  issue_id: 5
+  release_id: 0
+  uploader_id: 0
+  comment_id: 2
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 7
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a17
+  repo_id: 1
+  issue_id: 5
+  release_id: 0
+  uploader_id: 0
+  comment_id: 2
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 8
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a18
+  repo_id: 3
+  issue_id: 6
+  release_id: 0
+  uploader_id: 0
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 9
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a19
+  repo_id: 1
+  issue_id: 0
+  release_id: 1
+  uploader_id: 0
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 10
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a20
+  repo_id: 0 # TestGetAttachment/NotLinked
+  issue_id: 0
+  release_id: 0
+  uploader_id: 8
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 11
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a21
+  repo_id: 40
+  issue_id: 0
+  release_id: 2
+  uploader_id: 0
+  comment_id: 0
+  name: attach1
+  download_count: 0
+  size: 0
+  created_unix: 946684800
+
+-
+  id: 12
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a22
+  repo_id: 2
+  issue_id: 0
+  release_id: 11
+  uploader_id: 2
+  comment_id: 0
+  name: README.md
+  download_count: 0
+  size: 0
+  created_unix: 946684800
diff --git a/models/fixtures/branch.yml b/models/fixtures/branch.yml
new file mode 100644
index 0000000..9300304
--- /dev/null
+++ b/models/fixtures/branch.yml
@@ -0,0 +1,47 @@
+-
+  id: 1
+  repo_id: 1
+  name: 'foo'
+  commit_id: '65f1bf27bc3bf70f64657658635e66094edbcb4d'
+  commit_message: 'first commit'
+  commit_time: 978307100
+  pusher_id: 1
+  is_deleted: true
+  deleted_by_id: 1
+  deleted_unix: 978307200
+
+-
+  id: 2
+  repo_id: 1
+  name: 'bar'
+  commit_id: '62fb502a7172d4453f0322a2cc85bddffa57f07a'
+  commit_message: 'second commit'
+  commit_time: 978307100
+  pusher_id: 1
+  is_deleted: true
+  deleted_by_id: 99
+  deleted_unix: 978307200
+
+-
+  id: 3
+  repo_id: 1
+  name: 'branch2'
+  commit_id: '985f0301dba5e7b34be866819cd15ad3d8f508ee'
+  commit_message: 'make pull5 outdated'
+  commit_time: 1579166279
+  pusher_id: 1
+  is_deleted: false
+  deleted_by_id: 0
+  deleted_unix: 0
+
+-
+  id: 4
+  repo_id: 1
+  name: 'master'
+  commit_id: '65f1bf27bc3bf70f64657658635e66094edbcb4d'
+  commit_message: 'Initial commit'
+  commit_time: 1489927679
+  pusher_id: 1
+  is_deleted: false
+  deleted_by_id: 0
+  deleted_unix: 0
diff --git a/models/fixtures/collaboration.yml b/models/fixtures/collaboration.yml
new file mode 100644
index 0000000..7603bda
--- /dev/null
+++ b/models/fixtures/collaboration.yml
@@ -0,0 +1,53 @@
+-
+  id: 1
+  repo_id: 3
+  user_id: 2
+  mode: 2 # write
+
+-
+  id: 2
+  repo_id: 4
+  user_id: 4
+  mode: 2 # write
+
+-
+  id: 3
+  repo_id: 40
+  user_id: 4
+  mode: 2 # write
+
+-
+  id: 4
+  repo_id: 4
+  user_id: 29
+  mode: 2 # write
+
+-
+  id: 5
+  repo_id: 21
+  user_id: 15
+  mode: 2 # write
+
+-
+  id: 6
+  repo_id: 21
+  user_id: 18
+  mode: 2 # write
+
+-
+  id: 7
+  repo_id: 22
+  user_id: 15
+  mode: 2 # write
+
+-
+  id: 8
+  repo_id: 22
+  user_id: 18
+  mode: 2 # write
+
+-
+  id: 9
+  repo_id: 60
+  user_id: 38
+  mode: 2 # write
diff --git a/models/fixtures/comment.yml b/models/fixtures/comment.yml
new file mode 100644
index 0000000..f412128
--- /dev/null
+++ b/models/fixtures/comment.yml
@@ -0,0 +1,115 @@
+-
+  id: 1
+  type: 7 # label
+  poster_id: 2
+  issue_id: 1 # in repo_id 1
+  label_id: 1
+  content: "1"
+  created_unix: 946684810
+-
+  id: 2
+  type: 0 # comment
+  poster_id: 3 # user not watching (see watch.yml)
+  issue_id: 1 # in repo_id 1
+  content: "good work!"
+  created_unix: 946684811
+  updated_unix: 946684811
+  content_version: 1
+-
+  id: 3
+  type: 0 # comment
+  poster_id: 5 # user not watching (see watch.yml)
+  issue_id: 1 # in repo_id 1
+  content: "meh..."
+  created_unix: 946684812
+  updated_unix: 946684812
+-
+  id: 4
+  type: 21 # code comment
+  poster_id: 1
+  issue_id: 2
+  content: "meh..."
+  review_id: 4
+  line: 4
+  tree_path: "README.md"
+  created_unix: 946684812
+  invalidated: false
+  content_version: 1
+-
+  id: 5
+  type: 21 # code comment
+  poster_id: 1
+  issue_id: 2
+  content: "meh..."
+  line: -4
+  tree_path: "README.md"
+  created_unix: 946684812
+  invalidated: false
+
+-
+  id: 6
+  type: 21 # code comment
+  poster_id: 1
+  issue_id: 2
+  content: "it's already invalidated. boring..."
+  line: -4
+  tree_path: "README.md"
+  created_unix: 946684812
+  invalidated: true
+
+-
+  id: 7
+  type: 21 # code comment
+  poster_id: 100
+  issue_id: 3
+  content: "a review from a deleted user"
+  line: -4
+  review_id: 10
+  tree_path: "README.md"
+  created_unix: 946684812
+  invalidated: true
+
+-
+  id: 8
+  type: 0 # comment
+  poster_id: 2
+  issue_id: 4 # in repo_id 2
+  content: "comment in private pository"
+  created_unix: 946684811
+  updated_unix: 946684811
+
+-
+  id: 9
+  type: 22 # review
+  poster_id: 2
+  issue_id: 2 # in repo_id 1
+  review_id: 20
+  created_unix: 946684810
+
+-
+  id: 10
+  type: 0
+  poster_id: 1
+  issue_id: 1 # in repo_id 1
+  content: "test markup light/dark-mode-only ![GitHub-Mark-Light](https://user-images.githubusercontent.com/3369400/139447912-e0f43f33-6d9f-45f8-be46-2df5bbc91289.png#gh-dark-mode-only)![GitHub-Mark-Dark](https://user-images.githubusercontent.com/3369400/139448065-39a229ba-4b06-434b-bc67-616e2ed80c8f.png#gh-light-mode-only)"
+  created_unix: 946684813
+  updated_unix: 946684813
+
+-
+  id: 11
+  type: 22 # review
+  poster_id: 5
+  issue_id: 3 # in repo_id 1
+  content: "reviewed by user5"
+  review_id: 21
+  created_unix: 946684816
+
+-
+  id: 12
+  type: 27 # review request
+  poster_id: 2
+  issue_id: 3 # in repo_id 1
+  content: "review request for user5"
+  review_id: 22
+  assignee_id: 5
+  created_unix: 946684817
diff --git a/models/fixtures/commit_status.yml b/models/fixtures/commit_status.yml
new file mode 100644
index 0000000..0ba6caa
--- /dev/null
+++ b/models/fixtures/commit_status.yml
@@ -0,0 +1,65 @@
+-
+  id: 1
+  index: 1
+  repo_id: 1
+  state: "pending"
+  sha: "1234123412341234123412341234123412341234"
+  target_url: https://example.com/builds/
+  description: My awesome CI-service
+  context: ci/awesomeness
+  creator_id: 2
+
+-
+  id: 2
+  index: 2
+  repo_id: 1
+  state: "warning"
+  sha: "1234123412341234123412341234123412341234"
+  target_url: https://example.com/coverage/
+  description: My awesome Coverage service
+  context: cov/awesomeness
+  creator_id: 2
+
+-
+  id: 3
+  index: 3
+  repo_id: 1
+  state: "success"
+  sha: "1234123412341234123412341234123412341234"
+  target_url: https://example.com/coverage/
+  description: My awesome Coverage service
+  context: cov/awesomeness
+  creator_id: 2
+
+-
+  id: 4
+  index: 4
+  repo_id: 1
+  state: "failure"
+  sha: "1234123412341234123412341234123412341234"
+  target_url: https://example.com/builds/
+  description: My awesome CI-service
+  context: ci/awesomeness
+  creator_id: 2
+
+-
+  id: 5
+  index: 5
+  repo_id: 1
+  state: "error"
+  sha: "1234123412341234123412341234123412341234"
+  target_url: https://example.com/builds/
+  description: My awesome deploy service
+  context: deploy/awesomeness
+  creator_id: 2
+
+-
+  id: 6
+  index: 6
+  repo_id: 62
+  state: "failure"
+  sha: "774f93df12d14931ea93259ae93418da4482fcc1"
+  target_url: "/user2/test_workflows/actions"
+  description: My awesome deploy service
+  context: deploy/awesomeness
+  creator_id: 2
diff --git a/models/fixtures/commit_status_index.yml b/models/fixtures/commit_status_index.yml
new file mode 100644
index 0000000..f63343b
--- /dev/null
+++ b/models/fixtures/commit_status_index.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  repo_id: 1
+  sha: "1234123412341234123412341234123412341234"
+  max_index: 5
diff --git a/models/fixtures/deploy_key.yml b/models/fixtures/deploy_key.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/deploy_key.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/email_address.yml b/models/fixtures/email_address.yml
new file mode 100644
index 0000000..b2a0432
--- /dev/null
+++ b/models/fixtures/email_address.yml
@@ -0,0 +1,319 @@
+-
+  id: 1
+  uid: 11
+  email: user11@example.com
+  lower_email: user11@example.com
+  is_activated: false
+  is_primary: true
+
+-
+  id: 2
+  uid: 12
+  email: user12@example.com
+  lower_email: user12@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 3
+  uid: 2
+  email: user2@example.com
+  lower_email: user2@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 4
+  uid: 21
+  email: user21@example.com
+  lower_email: user21@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 5
+  uid: 9999999
+  email: user9999999@example.com
+  lower_email: user9999999@example.com
+  is_activated: true
+  is_primary: false
+
+-
+  id: 6
+  uid: 10
+  email: user10@example.com
+  lower_email: user10@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 7
+  uid: 10
+  email: user101@example.com
+  lower_email: user101@example.com
+  is_activated: true
+  is_primary: false
+
+-
+  id: 8
+  uid: 9
+  email: user9@example.com
+  lower_email: user9@example.com
+  is_activated: false
+  is_primary: true
+
+-
+  id: 9
+  uid: 1
+  email: user1@example.com
+  lower_email: user1@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 10
+  uid: 3
+  email: org3@example.com
+  lower_email: org3@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 11
+  uid: 4
+  email: user4@example.com
+  lower_email: user4@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 12
+  uid: 5
+  email: user5@example.com
+  lower_email: user5@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 13
+  uid: 6
+  email: org6@example.com
+  lower_email: org6@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 14
+  uid: 7
+  email: org7@example.com
+  lower_email: org7@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 15
+  uid: 8
+  email: user8@example.com
+  lower_email: user8@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 16
+  uid: 13
+  email: user13@example.com
+  lower_email: user13@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 17
+  uid: 14
+  email: user14@example.com
+  lower_email: user14@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 18
+  uid: 15
+  email: user15@example.com
+  lower_email: user15@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 19
+  uid: 16
+  email: user16@example.com
+  lower_email: user16@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 20
+  uid: 17
+  email: org17@example.com
+  lower_email: org17@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 21
+  uid: 18
+  email: user18@example.com
+  lower_email: user18@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 22
+  uid: 19
+  email: org19@example.com
+  lower_email: org19@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 23
+  uid: 20
+  email: user20@example.com
+  lower_email: user20@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 24
+  uid: 22
+  email: limited_org@example.com
+  lower_email: limited_org@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 25
+  uid: 23
+  email: privated_org@example.com
+  lower_email: privated_org@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 26
+  uid: 24
+  email: user24@example.com
+  lower_email: user24@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 27
+  uid: 25
+  email: org25@example.com
+  lower_email: org25@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 28
+  uid: 26
+  email: org26@example.com
+  lower_email: org26@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 29
+  uid: 27
+  email: user27@example.com
+  lower_email: user27@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 30
+  uid: 28
+  email: user28@example.com
+  lower_email: user28@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 31
+  uid: 29
+  email: user29@example.com
+  lower_email: user29@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 32
+  uid: 30
+  email: user30@example.com
+  lower_email: user30@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 33
+  uid: 1
+  email: user1-2@example.com
+  lower_email: user1-2@example.com
+  is_activated: true
+  is_primary: false
+
+-
+  id: 34
+  uid: 1
+  email: user1-3@example.com
+  lower_email: user1-3@example.com
+  is_activated: true
+  is_primary: false
+
+-
+  id: 35
+  uid: 2
+  email: user2-2@example.com
+  lower_email: user2-2@example.com
+  is_activated: false
+  is_primary: false
+
+-
+  id: 36
+  uid: 36
+  email: abcde@gitea.com
+  lower_email: abcde@gitea.com
+  is_activated: true
+  is_primary: false
+
+-
+  id: 37
+  uid: 37
+  email: user37@example.com
+  lower_email: user37@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 38
+  uid: 38
+  email: user38@example.com
+  lower_email: user38@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 39
+  uid: 39
+  email: user39@example.com
+  lower_email: user39@example.com
+  is_activated: true
+  is_primary: true
+
+-
+  id: 40
+  uid: 40
+  email: user40@example.com
+  lower_email: user40@example.com
+  is_activated: true
+  is_primary: true
diff --git a/models/fixtures/external_login_user.yml b/models/fixtures/external_login_user.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/external_login_user.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/follow.yml b/models/fixtures/follow.yml
new file mode 100644
index 0000000..b8d3582
--- /dev/null
+++ b/models/fixtures/follow.yml
@@ -0,0 +1,19 @@
+-
+  id: 1
+  user_id: 4
+  follow_id: 2
+
+-
+  id: 2
+  user_id: 8
+  follow_id: 2
+
+-
+  id: 3
+  user_id: 2
+  follow_id: 8
+
+-
+  id: 4
+  user_id: 31
+  follow_id: 33
diff --git a/models/fixtures/forgejo_blocked_user.yml b/models/fixtures/forgejo_blocked_user.yml
new file mode 100644
index 0000000..88c378a
--- /dev/null
+++ b/models/fixtures/forgejo_blocked_user.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  user_id: 4
+  block_id: 1
+  created_unix: 1671607299
diff --git a/models/fixtures/gpg_key.yml b/models/fixtures/gpg_key.yml
new file mode 100644
index 0000000..2d54313
--- /dev/null
+++ b/models/fixtures/gpg_key.yml
@@ -0,0 +1,23 @@
+-
+  id: 5
+  owner_id: 36
+  key_id: B15431642629B826
+  primary_key_id:
+  content: 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
+  verified: true
+  can_sign: true
+  can_encrypt_comms: true
+  can_encrypt_storage: true
+  can_certify: true
+
+-
+  id: 6
+  owner_id: 36
+  key_id: EE3AF48454AFD619
+  primary_key_id: B15431642629B826
+  content: 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
+  verified: true
+  can_sign: true
+  can_encrypt_comms: true
+  can_encrypt_storage: true
+  can_certify: true
diff --git a/models/fixtures/gpg_key_import.yml b/models/fixtures/gpg_key_import.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/gpg_key_import.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/hook_task.yml b/models/fixtures/hook_task.yml
new file mode 100644
index 0000000..fc0e03b
--- /dev/null
+++ b/models/fixtures/hook_task.yml
@@ -0,0 +1,43 @@
+-
+  id: 1
+  hook_id: 1
+  uuid: uuid1
+  is_delivered: true
+  is_succeed: false
+  request_content: >
+    {
+      "url": "/matrix-delivered",
+      "http_method":"PUT",
+      "headers": {
+        "X-Head": "42"
+      },
+      "body": "{}"
+    }
+
+-
+  id: 2
+  hook_id: 1
+  uuid: uuid2
+  is_delivered: false
+
+-
+  id: 3
+  hook_id: 1
+  uuid: uuid3
+  is_delivered: true
+  is_succeed: true
+  payload_content: '{"key":"value"}' # legacy task, payload saved in payload_content (and not in request_content)
+  request_content: >
+    {
+      "url": "/matrix-success",
+      "http_method":"PUT",
+      "headers": {
+        "X-Head": "42"
+      }
+    }
+
+-
+  id: 4
+  hook_id: 3
+  uuid: uuid4
+  is_delivered: false
diff --git a/models/fixtures/issue.yml b/models/fixtures/issue.yml
new file mode 100644
index 0000000..adb407f
--- /dev/null
+++ b/models/fixtures/issue.yml
@@ -0,0 +1,374 @@
+-
+  id: 1
+  repo_id: 1
+  index: 1
+  poster_id: 1
+  original_author_id: 0
+  name: issue1
+  content: content for the first issue
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 3
+  created_unix: 946684800
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 2
+  repo_id: 1
+  index: 2
+  poster_id: 1
+  original_author_id: 0
+  name: issue2
+  content: content for the second issue
+  milestone_id: 1
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 946684810
+  updated_unix: 978307190
+  is_locked: false
+
+-
+  id: 3
+  repo_id: 1
+  index: 3
+  poster_id: 1
+  original_author_id: 0
+  name: issue3
+  content: content for the third issue
+  milestone_id: 3
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 946684820
+  updated_unix: 978307180
+  is_locked: false
+
+-
+  id: 4
+  repo_id: 2
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue4
+  content: content for the fourth issue
+  milestone_id: 0
+  priority: 0
+  is_closed: true
+  is_pull: false
+  num_comments: 1
+  created_unix: 946684830
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 5
+  repo_id: 1
+  index: 4
+  poster_id: 2
+  original_author_id: 0
+  name: issue5
+  content: content for the fifth issue
+  milestone_id: 0
+  priority: 0
+  is_closed: true
+  is_pull: false
+  num_comments: 0
+  created_unix: 946684840
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 6
+  repo_id: 3
+  index: 1
+  poster_id: 1
+  original_author_id: 0
+  name: issue6
+  content: content6
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 946684850
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 7
+  repo_id: 2
+  index: 2
+  poster_id: 2
+  original_author_id: 0
+  name: issue7
+  content: content for the seventh issue
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 946684830
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 8
+  repo_id: 10
+  index: 1
+  poster_id: 11
+  original_author_id: 0
+  name: pr2
+  content: a pull request
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 946684820
+  updated_unix: 978307180
+  is_locked: false
+
+-
+  id: 9
+  repo_id: 48
+  index: 1
+  poster_id: 11
+  original_author_id: 0
+  name: pr1
+  content: a pull request
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 946684820
+  updated_unix: 978307180
+  is_locked: false
+
+-
+  id: 10
+  repo_id: 42
+  index: 1
+  poster_id: 500
+  original_author_id: 0
+  name: issue from deleted account
+  content: content from deleted account
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  deadline_unix: 1019307200
+  created_unix: 946684830
+  updated_unix: 999307200
+  is_locked: false
+
+-
+  id: 11
+  repo_id: 1
+  index: 5
+  poster_id: 1
+  original_author_id: 0
+  name: pull5
+  content: content for the a pull request
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 1579194806
+  updated_unix: 1579194806
+  is_locked: false
+
+-
+  id: 12
+  repo_id: 3
+  index: 2
+  poster_id: 2
+  original_author_id: 0
+  name: pull6
+  content: content for the a pull request
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 13
+  repo_id: 50
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue in active repo
+  content: we'll be testing github issue 13171 with this.
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 14
+  repo_id: 51
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue in archived repo
+  content: we'll be testing github issue 13171 with this.
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 15
+  repo_id: 5
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue in repo not linked to team1
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 16
+  repo_id: 32
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: just a normal issue
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 17
+  repo_id: 32
+  index: 2
+  poster_id: 15
+  original_author_id: 0
+  name: a issue with a assignment
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 1602935696
+  updated_unix: 1602935696
+  is_locked: false
+
+-
+  id: 18
+  repo_id: 55
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue for scoped labels
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: false
+  num_comments: 0
+  created_unix: 946684830
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 19
+  repo_id: 58
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue for pr
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 946684830
+  updated_unix: 978307200
+  is_locked: false
+
+-
+  id: 20
+  repo_id: 23
+  index: 1
+  poster_id: 2
+  original_author_id: 0
+  name: issue for pr
+  content: content
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 978307210
+  updated_unix: 978307210
+  is_locked: false
+
+-
+  id: 21
+  repo_id: 60
+  index: 1
+  poster_id: 39
+  original_author_id: 0
+  name: repo60 pull1
+  content: content for the 1st issue
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 1707270422
+  updated_unix: 1707270422
+  is_locked: false
+
+-
+  id: 22
+  repo_id: 61
+  index: 1
+  poster_id: 40
+  original_author_id: 0
+  name: repo61 pull1
+  content: content for the 1st issue
+  milestone_id: 0
+  priority: 0
+  is_closed: false
+  is_pull: true
+  num_comments: 0
+  created_unix: 1707270422
+  updated_unix: 1707270422
+  is_locked: false
diff --git a/models/fixtures/issue_assignees.yml b/models/fixtures/issue_assignees.yml
new file mode 100644
index 0000000..e5d36f9
--- /dev/null
+++ b/models/fixtures/issue_assignees.yml
@@ -0,0 +1,16 @@
+-
+  id: 1
+  assignee_id: 1
+  issue_id: 1
+-
+  id: 2
+  assignee_id: 1
+  issue_id: 6
+-
+  id: 3
+  assignee_id: 2
+  issue_id: 6
+-
+  id: 4
+  assignee_id: 2
+  issue_id: 17
diff --git a/models/fixtures/issue_index.yml b/models/fixtures/issue_index.yml
new file mode 100644
index 0000000..de6e955
--- /dev/null
+++ b/models/fixtures/issue_index.yml
@@ -0,0 +1,27 @@
+-
+  group_id: 1
+  max_index: 5
+-
+  group_id: 2
+  max_index: 2
+-
+  group_id: 3
+  max_index: 2
+-
+  group_id: 10
+  max_index: 1
+-
+  group_id: 32
+  max_index: 2
+-
+  group_id: 48
+  max_index: 1
+-
+  group_id: 42
+  max_index: 1
+-
+  group_id: 50
+  max_index: 1
+-
+  group_id: 51
+  max_index: 1
diff --git a/models/fixtures/issue_label.yml b/models/fixtures/issue_label.yml
new file mode 100644
index 0000000..f4ecb1f
--- /dev/null
+++ b/models/fixtures/issue_label.yml
@@ -0,0 +1,19 @@
+-
+  id: 1
+  issue_id: 1
+  label_id: 1
+
+-
+  id: 2
+  issue_id: 5
+  label_id: 2
+
+-
+  id: 3
+  issue_id: 2
+  label_id: 1
+
+-
+  id: 4
+  issue_id: 2
+  label_id: 4
diff --git a/models/fixtures/issue_user.yml b/models/fixtures/issue_user.yml
new file mode 100644
index 0000000..6482431
--- /dev/null
+++ b/models/fixtures/issue_user.yml
@@ -0,0 +1,20 @@
+-
+  id: 1
+  uid: 1
+  issue_id: 1
+  is_read: true
+  is_mentioned: false
+
+-
+  id: 2
+  uid: 2
+  issue_id: 1
+  is_read: true
+  is_mentioned: false
+
+-
+  id: 3
+  uid: 4
+  issue_id: 1
+  is_read: false
+  is_mentioned: true
diff --git a/models/fixtures/issue_watch.yml b/models/fixtures/issue_watch.yml
new file mode 100644
index 0000000..4bc3ff1
--- /dev/null
+++ b/models/fixtures/issue_watch.yml
@@ -0,0 +1,31 @@
+-
+  id: 1
+  user_id: 9
+  issue_id: 1
+  is_watching: true
+  created_unix: 946684800
+  updated_unix: 946684800
+
+-
+  id: 2
+  user_id: 2
+  issue_id: 2
+  is_watching: false
+  created_unix: 946684800
+  updated_unix: 946684800
+
+-
+  id: 3
+  user_id: 2
+  issue_id: 7
+  is_watching: true
+  created_unix: 946684800
+  updated_unix: 946684800
+
+-
+  id: 4
+  user_id: 1
+  issue_id: 7
+  is_watching: false
+  created_unix: 946684800
+  updated_unix: 946684800
diff --git a/models/fixtures/label.yml b/models/fixtures/label.yml
new file mode 100644
index 0000000..2242b90
--- /dev/null
+++ b/models/fixtures/label.yml
@@ -0,0 +1,98 @@
+-
+  id: 1
+  repo_id: 1
+  org_id: 0
+  name: label1
+  color: '#abcdef'
+  exclusive: false
+  num_issues: 2
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 2
+  repo_id: 1
+  org_id: 0
+  name: label2
+  color: '#000000'
+  exclusive: false
+  num_issues: 1
+  num_closed_issues: 1
+  archived_unix: 0
+
+-
+  id: 3
+  repo_id: 0
+  org_id: 3
+  name: orglabel3
+  color: '#abcdef'
+  exclusive: false
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 4
+  repo_id: 0
+  org_id: 3
+  name: orglabel4
+  color: '#000000'
+  exclusive: false
+  num_issues: 1
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 5
+  repo_id: 10
+  org_id: 0
+  name: pull-test-label
+  color: '#000000'
+  exclusive: false
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 6
+  repo_id: 55
+  org_id: 0
+  name: unscoped_label
+  color: '#000000'
+  exclusive: false
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 7
+  repo_id: 55
+  org_id: 0
+  name: scope/label1
+  color: '#000000'
+  exclusive: true
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 8
+  repo_id: 55
+  org_id: 0
+  name: scope/label2
+  color: '#000000'
+  exclusive: true
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
+
+-
+  id: 9
+  repo_id: 55
+  org_id: 0
+  name: scope/subscope/label2
+  color: '#000000'
+  exclusive: true
+  num_issues: 0
+  num_closed_issues: 0
+  archived_unix: 0
diff --git a/models/fixtures/lfs_meta_object.yml b/models/fixtures/lfs_meta_object.yml
new file mode 100644
index 0000000..cef4824
--- /dev/null
+++ b/models/fixtures/lfs_meta_object.yml
@@ -0,0 +1,32 @@
+# These are the LFS objects in user2/lfs.git
+-
+
+  id: 1
+  oid: 0b8d8b5f15046343fd32f451df93acc2bdd9e6373be478b968e4cad6b6647351
+  size: 107
+  repository_id: 54
+  created_unix: 1671607299
+
+-
+
+  id: 2 # this is an LFS orphan object
+  oid: 2eccdb43825d2a49d99d542daa20075cff1d97d9d2349a8977efe9c03661737c
+  size: 107
+  repository_id: 54
+  created_unix: 1671607299
+
+-
+
+  id: 3
+  oid: 7b6b2c88dba9f760a1a58469b67fee2b698ef7e9399c4ca4f34a14ccbe39f623
+  size: 27
+  repository_id: 54
+  created_unix: 1671607299
+
+-
+
+  id: 4
+  oid: 9d172e5c64b4f0024b9901ec6afe9ea052f3c9b6ff9f4b07956d8c48c86fca82
+  size: 25
+  repository_id: 54
+  created_unix: 1671607299
diff --git a/models/fixtures/login_source.yml b/models/fixtures/login_source.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/login_source.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/milestone.yml b/models/fixtures/milestone.yml
new file mode 100644
index 0000000..87c30cc
--- /dev/null
+++ b/models/fixtures/milestone.yml
@@ -0,0 +1,54 @@
+-
+  id: 1
+  repo_id: 1
+  name: milestone1
+  content: content1
+  is_closed: false
+  num_issues: 1
+  num_closed_issues: 0
+  completeness: 0
+  deadline_unix: 253370764800
+
+-
+  id: 2
+  repo_id: 1
+  name: milestone2
+  content: content2
+  is_closed: false
+  num_issues: 0
+  num_closed_issues: 0
+  completeness: 0
+  deadline_unix: 253370764800
+
+-
+  id: 3
+  repo_id: 1
+  name: milestone3
+  content: content3
+  is_closed: true
+  num_issues: 1
+  num_closed_issues: 0
+  completeness: 0
+  deadline_unix: 253370764800
+
+-
+  id: 4
+  repo_id: 42
+  name: milestone of repo42
+  content: content random
+  is_closed: false
+  num_issues: 0
+  num_closed_issues: 0
+  completeness: 0
+  deadline_unix: 253370764800
+
+-
+  id: 5
+  repo_id: 10
+  name: milestone of repo 10
+  content: for testing with PRs
+  is_closed: false
+  num_issues: 0
+  num_closed_issues: 0
+  completeness: 0
+  deadline_unix: 253370764800
diff --git a/models/fixtures/mirror.yml b/models/fixtures/mirror.yml
new file mode 100644
index 0000000..97bc4ae
--- /dev/null
+++ b/models/fixtures/mirror.yml
@@ -0,0 +1,49 @@
+-
+  id: 1
+  repo_id: 5
+  interval: 3600
+  enable_prune: false
+  updated_unix: 0
+  next_update_unix: 0
+  lfs_enabled: false
+  lfs_endpoint: ""
+
+-
+  id: 2
+  repo_id: 25
+  interval: 3600
+  enable_prune: false
+  updated_unix: 0
+  next_update_unix: 0
+  lfs_enabled: false
+  lfs_endpoint: ""
+
+-
+  id: 3
+  repo_id: 26
+  interval: 3600
+  enable_prune: false
+  updated_unix: 0
+  next_update_unix: 0
+  lfs_enabled: false
+  lfs_endpoint: ""
+
+-
+  id: 4
+  repo_id: 27
+  interval: 3600
+  enable_prune: false
+  updated_unix: 0
+  next_update_unix: 0
+  lfs_enabled: false
+  lfs_endpoint: ""
+
+-
+  id: 5
+  repo_id: 28
+  interval: 3600
+  enable_prune: false
+  updated_unix: 0
+  next_update_unix: 0
+  lfs_enabled: false
+  lfs_endpoint: ""
diff --git a/models/fixtures/notice.yml b/models/fixtures/notice.yml
new file mode 100644
index 0000000..af08f07
--- /dev/null
+++ b/models/fixtures/notice.yml
@@ -0,0 +1,14 @@
+-
+  id: 1
+  type: 1 # NoticeRepository
+  description: description1
+
+-
+  id: 2
+  type: 1 # NoticeRepository
+  description: description2
+
+-
+  id: 3
+  type: 1 # NoticeRepository
+  description: description3
diff --git a/models/fixtures/notification.yml b/models/fixtures/notification.yml
new file mode 100644
index 0000000..bd279d4
--- /dev/null
+++ b/models/fixtures/notification.yml
@@ -0,0 +1,54 @@
+-
+  id: 1
+  user_id: 1
+  repo_id: 1
+  status: 1 # unread
+  source: 1 # issue
+  updated_by: 2
+  issue_id: 1
+  created_unix: 946684800
+  updated_unix: 946684820
+
+-
+  id: 2
+  user_id: 2
+  repo_id: 1
+  status: 2 # read
+  source: 1 # issue
+  updated_by: 1
+  issue_id: 2
+  created_unix: 946685800
+  updated_unix: 946685820
+
+-
+  id: 3
+  user_id: 2
+  repo_id: 1
+  status: 3 # pinned
+  source: 1 # issue
+  updated_by: 1
+  issue_id: 3
+  created_unix: 946686800
+  updated_unix: 946686800
+
+-
+  id: 4
+  user_id: 2
+  repo_id: 1
+  status: 1 # unread
+  source: 1 # issue
+  updated_by: 1
+  issue_id: 5
+  created_unix: 946687800
+  updated_unix: 946687800
+
+-
+  id: 5
+  user_id: 2
+  repo_id: 2
+  status: 1 # unread
+  source: 1 # issue
+  updated_by: 5
+  issue_id: 4
+  created_unix: 946688800
+  updated_unix: 946688820
diff --git a/models/fixtures/oauth2_application.yml b/models/fixtures/oauth2_application.yml
new file mode 100644
index 0000000..beae913
--- /dev/null
+++ b/models/fixtures/oauth2_application.yml
@@ -0,0 +1,20 @@
+-
+  id: 1
+  uid: 1
+  name: "Test"
+  client_id: "da7da3ba-9a13-4167-856f-3899de0b0138"
+  client_secret: "$2a$10$UYRgUSgekzBp6hYe8pAdc.cgB4Gn06QRKsORUnIYTYQADs.YR/uvi" # bcrypt of "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=
+  redirect_uris: '["a", "https://example.com/xyzzy"]'
+  created_unix: 1546869730
+  updated_unix: 1546869730
+  confidential_client: true
+-
+  id: 2
+  uid: 2
+  name: "Test native app"
+  client_id: "ce5a1322-42a7-11ed-b878-0242ac120002"
+  client_secret: "$2a$10$UYRgUSgekzBp6hYe8pAdc.cgB4Gn06QRKsORUnIYTYQADs.YR/uvi" # bcrypt of "4MK8Na6R55smdCY0WuCCumZ6hjRPnGY5saWVRHHjJiA=
+  redirect_uris: '["b", "http://127.0.0.1"]'
+  created_unix: 1546869730
+  updated_unix: 1546869730
+  confidential_client: false
diff --git a/models/fixtures/oauth2_authorization_code.yml b/models/fixtures/oauth2_authorization_code.yml
new file mode 100644
index 0000000..d295021
--- /dev/null
+++ b/models/fixtures/oauth2_authorization_code.yml
@@ -0,0 +1,15 @@
+- id: 1
+  grant_id: 1
+  code: "authcode"
+  code_challenge: "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg" # Code Verifier: N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt
+  code_challenge_method: "S256"
+  redirect_uri: "a"
+  valid_until: 3546869730
+
+- id: 2
+  grant_id: 4
+  code: "authcodepublic"
+  code_challenge: "CjvyTLSdR47G5zYenDA-eDWW4lRrO8yvjcWwbD_deOg" # Code Verifier: N1Zo9-8Rfwhkt68r1r29ty8YwIraXR8eh_1Qwxg7yQXsonBt
+  code_challenge_method: "S256"
+  redirect_uri: "http://127.0.0.1/"
+  valid_until: 3546869730
diff --git a/models/fixtures/oauth2_grant.yml b/models/fixtures/oauth2_grant.yml
new file mode 100644
index 0000000..e632868
--- /dev/null
+++ b/models/fixtures/oauth2_grant.yml
@@ -0,0 +1,31 @@
+- id: 1
+  user_id: 1
+  application_id: 1
+  counter: 1
+  scope: "openid profile"
+  created_unix: 1546869730
+  updated_unix: 1546869730
+
+- id: 2
+  user_id: 3
+  application_id: 1
+  counter: 1
+  scope: "openid"
+  created_unix: 1546869730
+  updated_unix: 1546869730
+
+- id: 3
+  user_id: 5
+  application_id: 1
+  counter: 1
+  scope: "openid profile email"
+  created_unix: 1546869730
+  updated_unix: 1546869730
+
+- id: 4
+  user_id: 99
+  application_id: 2
+  counter: 1
+  scope: "whatever"
+  created_unix: 1546869730
+  updated_unix: 1546869730
diff --git a/models/fixtures/org_user.yml b/models/fixtures/org_user.yml
new file mode 100644
index 0000000..a7fbcb2
--- /dev/null
+++ b/models/fixtures/org_user.yml
@@ -0,0 +1,119 @@
+-
+  id: 1
+  uid: 2
+  org_id: 3
+  is_public: true
+
+-
+  id: 2
+  uid: 4
+  org_id: 3
+  is_public: false
+
+-
+  id: 3
+  uid: 5
+  org_id: 6
+  is_public: true
+
+-
+  id: 4
+  uid: 5
+  org_id: 7
+  is_public: false
+
+-
+  id: 5
+  uid: 15
+  org_id: 17
+  is_public: true
+
+-
+  id: 6
+  uid: 18
+  org_id: 17
+  is_public: false
+
+-
+  id: 7
+  uid: 20
+  org_id: 19
+  is_public: true
+
+-
+  id: 8
+  uid: 24
+  org_id: 25
+  is_public: true
+
+-
+  id: 9
+  uid: 28
+  org_id: 3
+  is_public: true
+
+-
+  id: 10
+  uid: 28
+  org_id: 6
+  is_public: true
+
+-
+  id: 11
+  uid: 29
+  org_id: 17
+  is_public: true
+
+-
+  id: 12
+  uid: 2
+  org_id: 17
+  is_public: true
+
+-
+  id: 13
+  uid: 31
+  org_id: 19
+  is_public: true
+
+-
+  id: 14
+  uid: 5
+  org_id: 23
+  is_public: false
+
+-
+  id: 15
+  uid: 1
+  org_id: 35
+  is_public: true
+
+-
+  id: 16
+  uid: 1
+  org_id: 36
+  is_public: true
+
+-
+  id: 17
+  uid: 5
+  org_id: 36
+  is_public: true
+
+-
+  id: 18
+  uid: 38
+  org_id: 41
+  is_public: true
+
+-
+  id: 19
+  uid: 39
+  org_id: 41
+  is_public: true
+
+-
+  id: 20
+  uid: 40
+  org_id: 41
+  is_public: true
diff --git a/models/fixtures/project.yml b/models/fixtures/project.yml
new file mode 100644
index 0000000..44d87bc
--- /dev/null
+++ b/models/fixtures/project.yml
@@ -0,0 +1,71 @@
+-
+  id: 1
+  title: First project
+  owner_id: 0
+  repo_id: 1
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973030
+  updated_unix: 1688973030
+
+-
+  id: 2
+  title: second project
+  owner_id: 0
+  repo_id: 3
+  is_closed: false
+  creator_id: 3
+  board_type: 1
+  type: 2
+  created_unix: 1688973010
+  updated_unix: 1688973010
+
+-
+  id: 3
+  title: project on repo with disabled project
+  owner_id: 0
+  repo_id: 4
+  is_closed: true
+  creator_id: 5
+  board_type: 1
+  type: 2
+  created_unix: 1688973020
+  updated_unix: 1688973020
+
+-
+  id: 4
+  title: project on user2
+  owner_id: 2
+  repo_id: 0
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973000
+  updated_unix: 1688973000
+
+-
+  id: 5
+  title: project without default column
+  owner_id: 2
+  repo_id: 0
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973000
+  updated_unix: 1688973000
+
+-
+  id: 6
+  title: project with multiple default columns
+  owner_id: 2
+  repo_id: 0
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973000
+  updated_unix: 1688973000
diff --git a/models/fixtures/project_board.yml b/models/fixtures/project_board.yml
new file mode 100644
index 0000000..3293dea
--- /dev/null
+++ b/models/fixtures/project_board.yml
@@ -0,0 +1,77 @@
+-
+  id: 1
+  project_id: 1
+  title: To Do
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 2
+  project_id: 1
+  title: In Progress
+  creator_id: 2
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 3
+  project_id: 1
+  title: Done
+  creator_id: 2
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 4
+  project_id: 4
+  title: Done
+  creator_id: 2
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 5
+  project_id: 2
+  title: Backlog
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 6
+  project_id: 4
+  title: Backlog
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 7
+  project_id: 5
+  title: Done
+  creator_id: 2
+  default: false
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 8
+  project_id: 6
+  title: Backlog
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 9
+  project_id: 6
+  title: Uncategorized
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
diff --git a/models/fixtures/project_issue.yml b/models/fixtures/project_issue.yml
new file mode 100644
index 0000000..b1af059
--- /dev/null
+++ b/models/fixtures/project_issue.yml
@@ -0,0 +1,23 @@
+-
+  id: 1
+  issue_id: 1
+  project_id: 1
+  project_board_id: 1
+
+-
+  id: 2
+  issue_id: 2
+  project_id: 1
+  project_board_id: 0 # no board assigned
+
+-
+  id: 3
+  issue_id: 3
+  project_id: 1
+  project_board_id: 2
+
+-
+  id: 4
+  issue_id: 5
+  project_id: 1
+  project_board_id: 3
diff --git a/models/fixtures/protected_branch.yml b/models/fixtures/protected_branch.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/protected_branch.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/protected_tag.yml b/models/fixtures/protected_tag.yml
new file mode 100644
index 0000000..dbec52c
--- /dev/null
+++ b/models/fixtures/protected_tag.yml
@@ -0,0 +1,24 @@
+-
+  id: 1
+  repo_id: 4
+  name_pattern: /v.+/
+  allowlist_user_i_ds: []
+  allowlist_team_i_ds: []
+  created_unix: 1715596037
+  updated_unix: 1715596037
+-
+  id: 2
+  repo_id: 1
+  name_pattern: v-*
+  allowlist_user_i_ds: []
+  allowlist_team_i_ds: []
+  created_unix: 1715596037
+  updated_unix: 1715596037
+-
+  id: 3
+  repo_id: 1
+  name_pattern: v-1.1
+  allowlist_user_i_ds: [2]
+  allowlist_team_i_ds: []
+  created_unix: 1715596037
+  updated_unix: 1715596037
diff --git a/models/fixtures/public_key.yml b/models/fixtures/public_key.yml
new file mode 100644
index 0000000..ae620ee
--- /dev/null
+++ b/models/fixtures/public_key.yml
@@ -0,0 +1,11 @@
+-
+  id: 1
+  owner_id: 2
+  name: user2@localhost
+  fingerprint: "SHA256:M3iiFbqQKgLxi+WAoRa38ZVQ9ktdfau2sOu9xuPb9ew"
+  content: "ssh-rsa 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 user2@localhost"
+  mode: 2
+  type: 1
+  created_unix: 1559593109
+  updated_unix: 1565224552
+  login_source_id: 0
diff --git a/models/fixtures/pull_request.yml b/models/fixtures/pull_request.yml
new file mode 100644
index 0000000..9a16316
--- /dev/null
+++ b/models/fixtures/pull_request.yml
@@ -0,0 +1,119 @@
+-
+  id: 1
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 2
+  index: 2
+  head_repo_id: 1
+  base_repo_id: 1
+  head_branch: branch1
+  base_branch: master
+  merge_base: 4a357436d925b5c974181ff12a994538ddc5a269
+  merged_commit_id: 1a8823cd1a9549fde083f992f6b9b87a7ab74fb3
+  has_merged: true
+  merger_id: 2
+
+-
+  id: 2
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 3
+  index: 3
+  head_repo_id: 1
+  base_repo_id: 1
+  head_branch: branch2
+  base_branch: master
+  merge_base: 4a357436d925b5c974181ff12a994538ddc5a269
+  has_merged: false
+
+-
+  id: 3
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 8
+  index: 1
+  head_repo_id: 11
+  base_repo_id: 10
+  head_branch: branch2
+  base_branch: master
+  merge_base: 0abcb056019adb83
+  has_merged: false
+
+-
+  id: 4
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 9
+  index: 1
+  head_repo_id: 48
+  base_repo_id: 48
+  head_branch: branch1
+  base_branch: master
+  merge_base: abcdef1234567890
+  has_merged: false
+
+-
+  id: 5 # this PR is outdated (one commit behind branch1 )
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 11
+  index: 5
+  head_repo_id: 1
+  base_repo_id: 1
+  head_branch: pr-to-update
+  base_branch: branch2
+  merge_base: 985f0301dba5e7b34be866819cd15ad3d8f508ee
+  has_merged: false
+
+-
+  id: 6
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 12
+  index: 2
+  head_repo_id: 3
+  base_repo_id: 3
+  head_branch: test_branch
+  base_branch: master
+  merge_base: 2a47ca4b614a9f5a
+  has_merged: false
+
+-
+  id: 7
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 19
+  index: 1
+  head_repo_id: 58
+  base_repo_id: 58
+  head_branch: branch1
+  base_branch: main
+  merge_base: cbff181af4c9c7fee3cf6c106699e07d9a3f54e6
+  has_merged: false
+
+-
+  id: 8
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 20
+  index: 1
+  head_repo_id: 23
+  base_repo_id: 23
+
+-
+  id: 9
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 21
+  index: 1
+  head_repo_id: 60
+  base_repo_id: 60
+
+-
+  id: 10
+  type: 0 # gitea pull request
+  status: 2 # mergeable
+  issue_id: 22
+  index: 1
+  head_repo_id: 61
+  base_repo_id: 61
diff --git a/models/fixtures/push_mirror.yml b/models/fixtures/push_mirror.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/push_mirror.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/reaction.yml b/models/fixtures/reaction.yml
new file mode 100644
index 0000000..ee571a7
--- /dev/null
+++ b/models/fixtures/reaction.yml
@@ -0,0 +1,39 @@
+-
+  id: 1 # issue reaction
+  type: zzz # not allowed reaction (added before allowed reaction list has changed)
+  issue_id: 1
+  comment_id: 0
+  user_id: 2
+  created_unix: 1573248001
+
+-
+  id: 2 # issue reaction
+  type: zzz # not allowed reaction (added before allowed reaction list has changed)
+  issue_id: 1
+  comment_id: 0
+  user_id: 1
+  created_unix: 1573248002
+
+-
+  id: 3 # issue reaction
+  type: eyes # allowed reaction
+  issue_id: 1
+  comment_id: 0
+  user_id: 2
+  created_unix: 1573248003
+
+-
+  id: 4 # comment reaction
+  type: laugh # allowed reaction
+  issue_id: 1
+  comment_id: 2
+  user_id: 2
+  created_unix: 1573248004
+
+-
+  id: 5 # comment reaction
+  type: laugh # allowed reaction
+  issue_id: 1
+  comment_id: 2
+  user_id: 1
+  created_unix: 1573248005
diff --git a/models/fixtures/release.yml b/models/fixtures/release.yml
new file mode 100644
index 0000000..0163506
--- /dev/null
+++ b/models/fixtures/release.yml
@@ -0,0 +1,166 @@
+- id: 1
+  repo_id: 1
+  publisher_id: 2
+  tag_name: "v1.1"
+  lower_tag_name: "v1.1"
+  target: "master"
+  title: "testing-release"
+  sha1: "65f1bf27bc3bf70f64657658635e66094edbcb4d"
+  num_commits: 10
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684800
+
+- id: 2
+  repo_id: 40
+  publisher_id: 2
+  tag_name: "v1.1"
+  lower_tag_name: "v1.1"
+  target: "master"
+  title: "testing-release"
+  sha1: "65f1bf27bc3bf70f64657658635e66094edbcb4d"
+  num_commits: 10
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684800
+
+- id: 3
+  repo_id: 1
+  publisher_id: 2
+  tag_name: "delete-tag"
+  lower_tag_name: "delete-tag"
+  target: "master"
+  title: "delete-tag"
+  sha1: "65f1bf27bc3bf70f64657658635e66094edbcb4d"
+  num_commits: 10
+  is_draft: false
+  is_prerelease: false
+  is_tag: true
+  created_unix: 946684800
+
+- id: 4
+  repo_id: 1
+  publisher_id: 2
+  tag_name: "draft-release"
+  lower_tag_name: "draft-release"
+  target: "master"
+  title: "draft-release"
+  is_draft: true
+  is_prerelease: false
+  is_tag: false
+  created_unix: 1619524806
+
+- id: 5
+  repo_id: 1
+  publisher_id: 2
+  tag_name: "v1.0"
+  lower_tag_name: "v1.0"
+  target: "master"
+  title: "pre-release"
+  note: "some text for a pre release"
+  sha1: "65f1bf27bc3bf70f64657658635e66094edbcb4d"
+  num_commits: 1
+  is_draft: false
+  is_prerelease: true
+  is_tag: false
+  created_unix: 946684800
+
+- id: 6
+  repo_id: 57
+  publisher_id: 2
+  tag_name: "v1.0"
+  lower_tag_name: "v1.0"
+  target: "main"
+  title: "v1.0"
+  sha1: "a8a700e8c644c783ba2c6e742bb81bf91e244bff"
+  num_commits: 3
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684801
+
+- id: 7
+  repo_id: 57
+  publisher_id: 2
+  tag_name: "v1.1"
+  lower_tag_name: "v1.1"
+  target: "main"
+  title: "v1.1"
+  sha1: "cef06e48f2642cd0dc9597b4bea09f4b3f74aad6"
+  num_commits: 5
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684802
+
+- id: 8
+  repo_id: 57
+  publisher_id: 2
+  tag_name: "v2.0"
+  lower_tag_name: "v2.0"
+  target: "main"
+  title: "v2.0"
+  sha1: "7197b56fdc75b453f47c9110938cb46a303579fd"
+  num_commits: 6
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684803
+
+- id: 9
+  repo_id: 57
+  publisher_id: 2
+  tag_name: "non-existing-target-branch"
+  lower_tag_name: "non-existing-target-branch"
+  target: "non-existing"
+  title: "non-existing-target-branch"
+  sha1: "cef06e48f2642cd0dc9597b4bea09f4b3f74aad6"
+  num_commits: 5
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684803
+
+- id: 10
+  repo_id: 57
+  publisher_id: 2
+  tag_name: "empty-target-branch"
+  lower_tag_name: "empty-target-branch"
+  target: ""
+  title: "empty-target-branch"
+  sha1: "cef06e48f2642cd0dc9597b4bea09f4b3f74aad6"
+  num_commits: 5
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684803
+
+- id: 11
+  repo_id: 2
+  publisher_id: 2
+  tag_name: "v1.1"
+  lower_tag_name: "v1.1"
+  target: ""
+  title: "v1.1"
+  sha1: "205ac761f3326a7ebe416e8673760016450b5cec"
+  num_commits: 2
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684803
+
+- id: 12
+  repo_id: 1059
+  publisher_id: 2
+  tag_name: "v1.0"
+  lower_tag_name: "v1.0"
+  target: "main"
+  title: "v1.0"
+  sha1: "d8f53dfb33f6ccf4169c34970b5e747511c18beb"
+  num_commits: 1
+  is_draft: false
+  is_prerelease: false
+  is_tag: false
+  created_unix: 946684803
diff --git a/models/fixtures/renamed_branch.yml b/models/fixtures/renamed_branch.yml
new file mode 100644
index 0000000..efa5130
--- /dev/null
+++ b/models/fixtures/renamed_branch.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  repo_id: 1
+  from: dev
+  to: master
diff --git a/models/fixtures/repo_archiver.yml b/models/fixtures/repo_archiver.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/repo_archiver.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/repo_indexer_status.yml b/models/fixtures/repo_indexer_status.yml
new file mode 100644
index 0000000..ca780a7
--- /dev/null
+++ b/models/fixtures/repo_indexer_status.yml
@@ -0,0 +1 @@
+[] # empty
diff --git a/models/fixtures/repo_redirect.yml b/models/fixtures/repo_redirect.yml
new file mode 100644
index 0000000..8850c8d
--- /dev/null
+++ b/models/fixtures/repo_redirect.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  owner_id: 2
+  lower_name: oldrepo1
+  redirect_repo_id: 1
diff --git a/models/fixtures/repo_topic.yml b/models/fixtures/repo_topic.yml
new file mode 100644
index 0000000..f166fac
--- /dev/null
+++ b/models/fixtures/repo_topic.yml
@@ -0,0 +1,27 @@
+-
+  repo_id: 1
+  topic_id: 1
+
+-
+  repo_id: 1
+  topic_id: 2
+
+-
+  repo_id: 1
+  topic_id: 3
+
+-
+  repo_id: 33
+  topic_id: 1
+
+-
+  repo_id: 33
+  topic_id: 4
+
+-
+  repo_id: 2
+  topic_id: 5
+
+-
+  repo_id: 2
+  topic_id: 6
diff --git a/models/fixtures/repo_transfer.yml b/models/fixtures/repo_transfer.yml
new file mode 100644
index 0000000..b841b5e
--- /dev/null
+++ b/models/fixtures/repo_transfer.yml
@@ -0,0 +1,7 @@
+-
+  id: 1
+  doer_id: 3
+  recipient_id: 1
+  repo_id: 3
+  created_unix: 1553610671
+  updated_unix: 1553610671
diff --git a/models/fixtures/repo_unit.yml b/models/fixtures/repo_unit.yml
new file mode 100644
index 0000000..cd49a51
--- /dev/null
+++ b/models/fixtures/repo_unit.yml
@@ -0,0 +1,797 @@
+# See models/unit/unit.go for the meaning of the type
+-
+  id: 1
+  repo_id: 1
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 2
+  repo_id: 1
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 3
+  repo_id: 1
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 4
+  repo_id: 1
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 5
+  repo_id: 1
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 6
+  repo_id: 3
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 7
+  repo_id: 3
+  type: 2
+  config: "{\"EnableTimetracker\":false,\"AllowOnlyContributorsToTrackTime\":false}"
+  created_unix: 946684810
+
+-
+  id: 8
+  repo_id: 3
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":true,\"AllowMerge\":true,\"AllowRebase\":false,\"AllowRebaseMerge\":true,\"AllowSquash\":false}"
+  created_unix: 946684810
+
+-
+  id: 9
+  repo_id: 3
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 10
+  repo_id: 3
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 11
+  repo_id: 31
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 12
+  repo_id: 33
+  type: 1
+  config: "{}"
+  created_unix: 1535593231
+
+-
+  id: 13
+  repo_id: 33
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 1535593231
+
+-
+  id: 14
+  repo_id: 33
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowSquash\":true}"
+  created_unix: 1535593231
+
+-
+  id: 15
+  repo_id: 33
+  type: 4
+  config: "{}"
+  created_unix: 1535593231
+
+-
+  id: 16
+  repo_id: 33
+  type: 5
+  config: "{}"
+  created_unix: 1535593231
+
+-
+  id: 17
+  repo_id: 4
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 18
+  repo_id: 4
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 19
+  repo_id: 4
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 20
+  repo_id: 4
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 21
+  repo_id: 4
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 22
+  repo_id: 2
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 23
+  repo_id: 2
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 24
+  repo_id: 2
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 25
+  repo_id: 32
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 26
+  repo_id: 32
+  type: 2
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 27
+  repo_id: 24
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 28
+  repo_id: 24
+  type: 2
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 29
+  repo_id: 16
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 30
+  repo_id: 23
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 31
+  repo_id: 27
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 32
+  repo_id: 28
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 33
+  repo_id: 36
+  type: 4
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 34
+  repo_id: 36
+  type: 5
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 35
+  repo_id: 36
+  type: 1
+  config: "{}"
+  created_unix: 1524304355
+
+-
+  id: 36
+  repo_id: 36
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 1524304355
+
+-
+  id: 37
+  repo_id: 36
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 1524304355
+
+-
+  id: 38
+  repo_id: 37
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 39
+  repo_id: 37
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 40
+  repo_id: 37
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 41
+  repo_id: 37
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 42
+  repo_id: 37
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 43
+  repo_id: 38
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 44
+  repo_id: 38
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 45
+  repo_id: 38
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 46
+  repo_id: 39
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 47
+  repo_id: 39
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 48
+  repo_id: 39
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 49
+  repo_id: 40
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 50
+  repo_id: 40
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 51
+  repo_id: 40
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 52
+  repo_id: 41
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 53
+  repo_id: 41
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 54
+  repo_id: 41
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 55
+  repo_id: 10
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 56
+  repo_id: 10
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 57
+  repo_id: 10
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 58
+  repo_id: 11
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 59
+  repo_id: 42
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 60
+  repo_id: 42
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 61
+  repo_id: 42
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 62
+  repo_id: 42
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 63
+  repo_id: 42
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 64
+  repo_id: 44
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 65
+  repo_id: 45
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 66
+  repo_id: 46
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"\"}"
+  created_unix: 946684810
+
+-
+  id: 67
+  repo_id: 47
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"numeric\"}"
+  created_unix: 946684810
+
+-
+  id: 68
+  repo_id: 48
+  type: 7
+  config: "{\"ExternalTrackerURL\":\"https://tracker.com\",\"ExternalTrackerFormat\":\"https://tracker.com/{user}/{repo}/issues/{index}\",\"ExternalTrackerStyle\":\"alphanumeric\"}"
+  created_unix: 946684810
+-
+  id: 69
+  repo_id: 2
+  type: 2
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 70
+  repo_id: 5
+  type: 4
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 71
+  repo_id: 5
+  type: 5
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 72
+  repo_id: 5
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 73
+  repo_id: 5
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 74
+  repo_id: 5
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 75
+  repo_id: 1
+  type: 8
+  created_unix: 946684810
+
+-
+  id: 76
+  repo_id: 2
+  type: 8
+  created_unix: 946684810
+
+-
+  id: 77
+  repo_id: 3
+  type: 8
+  created_unix: 946684810
+
+-
+  id: 78
+  repo_id: 50
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 79
+  repo_id: 51
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 80
+  repo_id: 53
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 81
+  repo_id: 54
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 82
+  repo_id: 31
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 83
+  repo_id: 31
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 84
+  repo_id: 56
+  type: 1
+  created_unix: 946684810
+-
+  id: 85
+  repo_id: 57
+  type: 1
+  created_unix: 946684810
+-
+  id: 86
+  repo_id: 57
+  type: 2
+  created_unix: 946684810
+-
+  id: 87
+  repo_id: 57
+  type: 3
+  created_unix: 946684810
+-
+  id: 88
+  repo_id: 57
+  type: 4
+  created_unix: 946684810
+-
+  id: 89
+  repo_id: 57
+  type: 5
+  created_unix: 946684810
+
+-
+  id: 90
+  repo_id: 52
+  type: 1
+  created_unix: 946684810
+
+# BEGIN Forgejo [GITEA] Improve HTML title on repositories
+-
+  id: 1093
+  repo_id: 1059
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 1094
+  repo_id: 1059
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 1095
+  repo_id: 1059
+  type: 3
+  created_unix: 946684810
+
+-
+  id: 1096
+  repo_id: 1059
+  type: 4
+  created_unix: 946684810
+
+-
+  id: 1097
+  repo_id: 1059
+  type: 5
+  created_unix: 946684810
+# END Forgejo [GITEA] Improve HTML title on repositories
+
+-
+  id: 91
+  repo_id: 58
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 92
+  repo_id: 58
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 93
+  repo_id: 58
+  type: 3
+  created_unix: 946684810
+
+-
+  id: 94
+  repo_id: 58
+  type: 4
+  created_unix: 946684810
+
+-
+  id: 95
+  repo_id: 58
+  type: 5
+  created_unix: 946684810
+
+-
+  id: 96
+  repo_id: 49
+  type: 1
+  created_unix: 946684810
+
+-
+  id: 97
+  repo_id: 49
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 98
+  repo_id: 1
+  type: 8
+  created_unix: 946684810
+
+-
+  id: 99
+  repo_id: 1
+  type: 9
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 100
+  repo_id: 1
+  type: 10
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 101
+  repo_id: 59
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 102
+  repo_id: 60
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 103
+  repo_id: 60
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 104
+  repo_id: 60
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 105
+  repo_id: 61
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 106
+  repo_id: 61
+  type: 2
+  config: "{\"EnableTimetracker\":true,\"AllowOnlyContributorsToTrackTime\":true}"
+  created_unix: 946684810
+
+-
+  id: 107
+  repo_id: 61
+  type: 3
+  config: "{\"IgnoreWhitespaceConflicts\":false,\"AllowMerge\":true,\"AllowRebase\":true,\"AllowRebaseMerge\":true,\"AllowSquash\":true}"
+  created_unix: 946684810
+
+-
+  id: 108
+  repo_id: 62
+  type: 1
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 109
+  repo_id: 62
+  type: 2
+  created_unix: 946684810
+
+-
+  id: 110
+  repo_id: 62
+  type: 3
+  created_unix: 946684810
+
+-
+  id: 111
+  repo_id: 62
+  type: 4
+  created_unix: 946684810
+
+-
+  id: 112
+  repo_id: 62
+  type: 5
+  created_unix: 946684810
+
+-
+  id: 113
+  repo_id: 62
+  type: 10
+  config: "{}"
+  created_unix: 946684810
+
+-
+  id: 114
+  repo_id: 4
+  type: 10
+  config: "{}"
+  created_unix: 946684810
diff --git a/models/fixtures/repository.yml b/models/fixtures/repository.yml
new file mode 100644
index 0000000..51f526f
--- /dev/null
+++ b/models/fixtures/repository.yml
@@ -0,0 +1,1826 @@
+# don't forget to add fixtures in repo_unit.yml
+-
+  id: 1
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo1
+  name: repo1
+  default_branch: master
+  num_watches: 4
+  num_stars: 0
+  num_forks: 0
+  num_issues: 2
+  num_closed_issues: 1
+  num_pulls: 3
+  num_closed_pulls: 0
+  num_milestones: 3
+  num_closed_milestones: 1
+  num_projects: 1
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 7597
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 2
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo2
+  name: repo2
+  default_branch: master
+  num_watches: 1
+  num_stars: 1
+  num_forks: 0
+  num_issues: 2
+  num_closed_issues: 1
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: true
+
+-
+  id: 3
+  owner_id: 3
+  owner_name: org3
+  lower_name: repo3
+  name: repo3
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 1
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 1
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 2
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1700000001
+  updated_unix: 1700000001
+
+-
+  id: 4
+  owner_id: 5
+  owner_name: user5
+  lower_name: repo4
+  name: repo4
+  default_branch: master
+  num_watches: 0
+  num_stars: 1
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 1
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 5
+  owner_id: 3
+  owner_name: org3
+  lower_name: repo5
+  name: repo5
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 1
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: true
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1700000002
+  updated_unix: 1700000002
+
+-
+  id: 6
+  owner_id: 10
+  owner_name: user10
+  lower_name: repo6
+  name: repo6
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1710000001
+  updated_unix: 1710000001
+
+-
+  id: 7
+  owner_id: 10
+  owner_name: user10
+  lower_name: repo7
+  name: repo7
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1710000003
+  updated_unix: 1710000003
+
+-
+  id: 8
+  owner_id: 10
+  owner_name: user10
+  lower_name: repo8
+  name: repo8
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1710000002
+  updated_unix: 1710000002
+
+-
+  id: 9
+  owner_id: 11
+  owner_name: user11
+  lower_name: repo9
+  name: repo9
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 10
+  owner_id: 12
+  owner_name: user12
+  lower_name: repo10
+  name: repo10
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 1
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 1
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 11
+  owner_id: 13
+  owner_name: user13
+  lower_name: repo11
+  name: repo11
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 10
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 12
+  owner_id: 14
+  owner_name: user14
+  lower_name: test_repo_12
+  name: test_repo_12
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 13
+  owner_id: 14
+  owner_name: user14
+  lower_name: test_repo_13
+  name: test_repo_13
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 14
+  owner_id: 14
+  owner_name: user14
+  lower_name: test_repo_14
+  name: test_repo_14
+  description: test_description_14
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 15
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo15
+  name: repo15
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 16
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo16
+  name: repo16
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 17
+  owner_id: 15
+  owner_name: user15
+  lower_name: big_test_public_1
+  name: big_test_public_1
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 18
+  owner_id: 15
+  owner_name: user15
+  lower_name: big_test_public_2
+  name: big_test_public_2
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 19
+  owner_id: 15
+  owner_name: user15
+  lower_name: big_test_private_1
+  name: big_test_private_1
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 20
+  owner_id: 15
+  owner_name: user15
+  lower_name: big_test_private_2
+  name: big_test_private_2
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 21
+  owner_id: 16
+  owner_name: user16
+  lower_name: big_test_public_3
+  name: big_test_public_3
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 22
+  owner_id: 16
+  owner_name: user16
+  lower_name: big_test_private_3
+  name: big_test_private_3
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 23
+  owner_id: 17
+  owner_name: org17
+  lower_name: big_test_public_4
+  name: big_test_public_4
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 24
+  owner_id: 17
+  owner_name: org17
+  lower_name: big_test_private_4
+  name: big_test_private_4
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 25
+  owner_id: 20
+  owner_name: user20
+  lower_name: big_test_public_mirror_5
+  name: big_test_public_mirror_5
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: true
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 26
+  owner_id: 20
+  owner_name: user20
+  lower_name: big_test_private_mirror_5
+  name: big_test_private_mirror_5
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: true
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 27
+  owner_id: 19
+  owner_name: org19
+  lower_name: big_test_public_mirror_6
+  name: big_test_public_mirror_6
+  num_watches: 0
+  num_stars: 0
+  num_forks: 1
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: true
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 28
+  owner_id: 19
+  owner_name: org19
+  lower_name: big_test_private_mirror_6
+  name: big_test_private_mirror_6
+  num_watches: 0
+  num_stars: 0
+  num_forks: 1
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: true
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 29
+  owner_id: 20
+  owner_name: user20
+  lower_name: big_test_public_fork_7
+  name: big_test_public_fork_7
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: true
+  fork_id: 27
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 30
+  owner_id: 20
+  owner_name: user20
+  lower_name: big_test_private_fork_7
+  name: big_test_private_fork_7
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: true
+  fork_id: 28
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 31
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo20
+  name: repo20
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 32 # org public repo
+  owner_id: 3
+  owner_name: org3
+  lower_name: repo21
+  name: repo21
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 2
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+  created_unix: 1700000003
+  updated_unix: 1700000003
+
+-
+  id: 33
+  owner_id: 2
+  owner_name: user2
+  lower_name: utf8
+  name: utf8
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 34
+  owner_id: 21
+  owner_name: user21
+  lower_name: golang
+  name: golang
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 35
+  owner_id: 21
+  owner_name: user21
+  lower_name: graphql
+  name: graphql
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 36
+  owner_id: 2
+  owner_name: user2
+  lower_name: commits_search_test
+  name: commits_search_test
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 37
+  owner_id: 2
+  owner_name: user2
+  lower_name: git_hooks_test
+  name: git_hooks_test
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 38
+  owner_id: 22
+  owner_name: limited_org
+  lower_name: public_repo_on_limited_org
+  name: public_repo_on_limited_org
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 39
+  owner_id: 22
+  owner_name: limited_org
+  lower_name: private_repo_on_limited_org
+  name: private_repo_on_limited_org
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 40
+  owner_id: 23
+  owner_name: privated_org
+  lower_name: public_repo_on_private_org
+  name: public_repo_on_private_org
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 41
+  owner_id: 23
+  owner_name: privated_org
+  lower_name: private_repo_on_private_org
+  name: private_repo_on_private_org
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 42
+  owner_id: 2
+  owner_name: user2
+  lower_name: glob
+  name: glob
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 1
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 1
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 43
+  owner_id: 26
+  owner_name: org26
+  lower_name: repo26
+  name: repo26
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 44
+  owner_id: 27
+  owner_name: user27
+  lower_name: template1
+  name: template1
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: true
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 45
+  owner_id: 27
+  owner_name: user27
+  lower_name: template2
+  name: template2
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: true
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 46
+  owner_id: 26
+  owner_name: org26
+  lower_name: repo_external_tracker
+  name: repo_external_tracker
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 47
+  owner_id: 26
+  owner_name: org26
+  lower_name: repo_external_tracker_numeric
+  name: repo_external_tracker_numeric
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 48
+  owner_id: 26
+  owner_name: org26
+  lower_name: repo_external_tracker_alpha
+  name: repo_external_tracker_alpha
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 49
+  owner_id: 27
+  owner_name: user27
+  lower_name: repo49
+  name: repo49
+  description: A wonderful repository with more than just a README.md
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 50
+  owner_id: 30
+  owner_name: user30
+  lower_name: repo50
+  name: repo50
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 1
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 51
+  owner_id: 30
+  owner_name: user30
+  lower_name: repo51
+  name: repo51
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 1
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: true
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 52
+  owner_id: 30
+  owner_name: user30
+  lower_name: empty
+  name: empty
+  default_branch: master
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: true
+  is_empty: true
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 53
+  owner_id: 30
+  owner_name: user30
+  lower_name: renderer
+  name: renderer
+  default_branch: master
+  is_archived: false
+  is_empty: false
+  is_private: false
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_watches: 0
+  num_projects: 0
+  num_closed_projects: 0
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 54
+  owner_id: 2
+  owner_name: user2
+  lower_name: lfs
+  name: lfs
+  default_branch: master
+  is_empty: false
+  is_archived: false
+  is_private: true
+  status: 0
+
+-
+  id: 55
+  owner_id: 2
+  owner_name: user2
+  lower_name: scoped_label
+  name: scoped_label
+  is_empty: false
+  is_archived: false
+  is_private: true
+  num_issues: 1
+  status: 0
+
+-
+  id: 56
+  owner_id: 2
+  owner_name: user2
+  lower_name: readme-test
+  name: readme-test
+  default_branch: master
+  is_empty: false
+  is_archived: false
+  is_private: true
+  status: 0
+  num_issues: 0
+
+-
+  id: 57
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo-release
+  name: repo-release
+  default_branch: main
+  is_empty: false
+  is_archived: false
+  is_private: false
+  status: 0
+  num_issues: 0
+
+-
+  id: 58 # org public repo
+  owner_id: 2
+  owner_name: user2
+  lower_name: commitsonpr
+  name: commitsonpr
+  default_branch: main
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 1059
+  owner_id: 2
+  owner_name: user2
+  lower_name: repo59
+  name: repo59
+  default_branch: master
+  is_empty: false
+  is_archived: false
+  is_private: false
+  status: 0
+  num_issues: 0
+
+-
+  id: 59
+  owner_id: 2
+  owner_name: user2
+  lower_name: test_commit_revert
+  name: test_commit_revert
+  default_branch: main
+  is_empty: false
+  is_archived: false
+  is_private: true
+  status: 0
+  num_issues: 0
+
+-
+  id: 60
+  owner_id: 40
+  owner_name: user40
+  lower_name: repo60
+  name: repo60
+  default_branch: main
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+-
+  id: 61
+  owner_id: 41
+  owner_name: org41
+  lower_name: repo61
+  name: repo61
+  default_branch: main
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 1
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
+
+- id: 62
+  owner_id: 2
+  owner_name: user2
+  lower_name: test_workflows
+  name: test_workflows
+  default_branch: main
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
diff --git a/models/fixtures/review.yml b/models/fixtures/review.yml
new file mode 100644
index 0000000..0438cea
--- /dev/null
+++ b/models/fixtures/review.yml
@@ -0,0 +1,200 @@
+-
+  id: 1
+  type: 1
+  reviewer_id: 1
+  issue_id: 2
+  content: "Demo Review"
+  updated_unix: 946684810
+  created_unix: 946684810
+-
+  id: 2
+  type: 1
+  reviewer_id: 534543
+  issue_id: 534543
+  content: "Invalid Review #1"
+  updated_unix: 946684810
+  created_unix: 946684810
+-
+  id: 3
+  type: 1
+  reviewer_id: 1
+  issue_id: 343545
+  content: "Invalid Review #2"
+  updated_unix: 946684810
+  created_unix: 946684810
+-
+  id: 4
+  type: 0 # Pending review
+  reviewer_id: 1
+  issue_id: 2
+  content: "Pending Review"
+  updated_unix: 946684810
+  created_unix: 946684810
+-
+  id: 5
+  type: 2
+  reviewer_id: 1
+  issue_id: 3
+  content: "New review 1"
+  updated_unix: 946684810
+  created_unix: 946684810
+-
+  id: 6
+  type: 0
+  reviewer_id: 2
+  issue_id: 3
+  content: "New review 3"
+  original_author_id: 0
+  updated_unix: 946684811
+  created_unix: 946684811
+-
+  id: 7
+  type: 3
+  reviewer_id: 3
+  issue_id: 3
+  content: "New review 4"
+  original_author_id: 0
+  updated_unix: 946684812
+  created_unix: 946684812
+-
+  id: 8
+  type: 1
+  reviewer_id: 4
+  issue_id: 3
+  original_author_id: 0
+  content: "New review 5"
+  commit_id: 8091a55037cd59e47293aca02981b5a67076b364
+  stale: true
+  updated_unix: 946684813
+  created_unix: 946684813
+-
+  id: 9
+  type: 3
+  reviewer_id: 2
+  issue_id: 3
+  content: "New review 3 rejected"
+  updated_unix: 946684814
+  created_unix: 946684814
+  original_author_id: 0
+
+-
+  id: 10
+  type: 3
+  reviewer_id: 100
+  issue_id: 3
+  content: "a deleted user's review"
+  official: true
+  updated_unix: 946684815
+  created_unix: 946684815
+
+-
+  id: 11
+  type: 4
+  reviewer_id: 0
+  reviewer_team_id: 7
+  issue_id: 12
+  official: true
+  updated_unix: 1602936509
+  created_unix: 1602936509
+
+-
+  id: 12
+  type: 4
+  reviewer_id: 1
+  issue_id: 12
+  official: true
+  updated_unix: 1603196749
+  created_unix: 1603196749
+
+-
+  id: 13
+  type: 1
+  reviewer_id: 5
+  issue_id: 11
+  content: "old review from user5"
+  updated_unix: 946684820
+  created_unix: 946684820
+
+-
+  id: 14
+  type: 1
+  reviewer_id: 5
+  issue_id: 11
+  content: "duplicate review from user5 (latest)"
+  updated_unix: 946684830
+  created_unix: 946684830
+
+-
+  id: 15
+  type: 1
+  reviewer_id: 6
+  issue_id: 11
+  content: "singular review from org6 and final review for this pr"
+  updated_unix: 946684831
+  created_unix: 946684831
+
+-
+  id: 16
+  type: 4
+  reviewer_id: 20
+  issue_id: 20
+  content: "review request for user20"
+  updated_unix: 946684832
+  created_unix: 946684832
+
+-
+  id: 17
+  type: 1
+  reviewer_id: 20
+  issue_id: 20
+  content: "review approved by user20"
+  updated_unix: 946684833
+  created_unix: 946684833
+
+-
+  id: 18
+  type: 4
+  reviewer_id: 0
+  reviewer_team_id: 5
+  issue_id: 20
+  content: "review request for team5"
+  updated_unix: 946684834
+  created_unix: 946684834
+
+-
+  id: 19
+  type: 4
+  reviewer_id: 15
+  reviewer_team_id: 0
+  issue_id: 20
+  content: "review request for user15"
+  updated_unix: 946684835
+  created_unix: 946684835
+
+-
+  id: 20
+  type: 22
+  reviewer_id: 1
+  issue_id: 2
+  content: "Review Comment"
+  updated_unix: 946684810
+  created_unix: 946684810
+
+-
+  id: 21
+  type: 2
+  reviewer_id: 5
+  issue_id: 3
+  content: "reviewed by user5"
+  commit_id: 4a357436d925b5c974181ff12a994538ddc5a269
+  updated_unix: 946684816
+  created_unix: 946684816
+
+-
+  id: 22
+  type: 4
+  reviewer_id: 5
+  issue_id: 3
+  content: "review request for user5"
+  updated_unix: 946684817
+  created_unix: 946684817
diff --git a/models/fixtures/star.yml b/models/fixtures/star.yml
new file mode 100644
index 0000000..860f26b
--- /dev/null
+++ b/models/fixtures/star.yml
@@ -0,0 +1,9 @@
+-
+  id: 1
+  uid: 2
+  repo_id: 2
+
+-
+  id: 2
+  uid: 2
+  repo_id: 4
diff --git a/models/fixtures/stopwatch.yml b/models/fixtures/stopwatch.yml
new file mode 100644
index 0000000..b7919d6
--- /dev/null
+++ b/models/fixtures/stopwatch.yml
@@ -0,0 +1,11 @@
+-
+  id: 1
+  user_id: 1
+  issue_id: 1
+  created_unix: 1500988001
+
+-
+  id: 2
+  user_id: 2
+  issue_id: 2
+  created_unix: 1500988002
diff --git a/models/fixtures/system_setting.yml b/models/fixtures/system_setting.yml
new file mode 100644
index 0000000..30542bc
--- /dev/null
+++ b/models/fixtures/system_setting.yml
@@ -0,0 +1,15 @@
+-
+  id: 1
+  setting_key: 'picture.disable_gravatar'
+  setting_value: 'false'
+  version: 1
+  created: 1653533198
+  updated: 1653533198
+
+-
+  id: 2
+  setting_key: 'picture.enable_federated_avatar'
+  setting_value: 'false'
+  version: 1
+  created: 1653533198
+  updated: 1653533198
diff --git a/models/fixtures/team.yml b/models/fixtures/team.yml
new file mode 100644
index 0000000..149fe90
--- /dev/null
+++ b/models/fixtures/team.yml
@@ -0,0 +1,241 @@
+-
+  id: 1
+  org_id: 3
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 3
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 2
+  org_id: 3
+  lower_name: team1
+  name: team1
+  authorize: 2 # write
+  num_repos: 1
+  num_members: 2
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 3
+  org_id: 6
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 4
+  org_id: 7
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 5
+  org_id: 17
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 2
+  num_members: 2
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 6
+  org_id: 19
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 2
+  num_members: 2
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 7
+  org_id: 3
+  lower_name: test_team
+  name: test_team
+  authorize: 2 # write
+  num_repos: 1
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 8
+  org_id: 17
+  lower_name: test_team
+  name: test_team
+  authorize: 2 # write
+  num_repos: 1
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 9
+  org_id: 17
+  lower_name: review_team
+  name: review_team
+  authorize: 1 # read
+  num_repos: 1
+  num_members: 3
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 10
+  org_id: 25
+  lower_name: notowners
+  name: NotOwners
+  authorize: 1 # read
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 11
+  org_id: 26
+  lower_name: team11
+  name: team11
+  authorize: 1 # read
+  num_repos: 0
+  num_members: 0
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 12
+  org_id: 3
+  lower_name: team12creators
+  name: team12Creators
+  authorize: 3 # admin
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 13
+  org_id: 6
+  lower_name: team13notcreators
+  name: team13NotCreators
+  authorize: 3 # admin
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: false
+
+-
+  id: 14
+  org_id: 3
+  lower_name: teamcreaterepo
+  name: teamCreateRepo
+  authorize: 2 # write
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 15
+  org_id: 22
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 0
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 16
+  org_id: 23
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 0
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 17
+  org_id: 23
+  lower_name: team14writeauth
+  name: team14WriteAuth
+  authorize: 2 # write
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 18
+  org_id: 35
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 19
+  org_id: 36
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 20
+  org_id: 36
+  lower_name: team20writepackage
+  name: team20writepackage
+  authorize: 1
+  num_repos: 0
+  num_members: 1
+  includes_all_repositories: false
+  can_create_org_repo: true
+
+-
+  id: 21
+  org_id: 41
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 1
+  num_members: 1
+  includes_all_repositories: true
+  can_create_org_repo: true
+
+-
+  id: 22
+  org_id: 41
+  lower_name: team1
+  name: Team1
+  authorize: 1 # read
+  num_repos: 1
+  num_members: 2
+  includes_all_repositories: false
+  can_create_org_repo: false
diff --git a/models/fixtures/team_repo.yml b/models/fixtures/team_repo.yml
new file mode 100644
index 0000000..a290781
--- /dev/null
+++ b/models/fixtures/team_repo.yml
@@ -0,0 +1,77 @@
+-
+  id: 1
+  org_id: 3
+  team_id: 1
+  repo_id: 3
+
+-
+  id: 2
+  org_id: 3
+  team_id: 2
+  repo_id: 3
+
+-
+  id: 3
+  org_id: 3
+  team_id: 1
+  repo_id: 5
+
+-
+  id: 4
+  org_id: 17
+  team_id: 5
+  repo_id: 23
+
+-
+  id: 5
+  org_id: 17
+  team_id: 5
+  repo_id: 24
+
+-
+  id: 6
+  org_id: 19
+  team_id: 6
+  repo_id: 27
+
+-
+  id: 7
+  org_id: 19
+  team_id: 6
+  repo_id: 28
+
+-
+  id: 8
+  org_id: 3
+  team_id: 1
+  repo_id: 32
+
+-
+  id: 9
+  org_id: 3
+  team_id: 7
+  repo_id: 32
+
+-
+  id: 10
+  org_id: 17
+  team_id: 8
+  repo_id: 24
+
+-
+  id: 11
+  org_id: 17
+  team_id: 9
+  repo_id: 24
+
+-
+  id: 12
+  org_id: 41
+  team_id: 21
+  repo_id: 61
+
+-
+  id: 13
+  org_id: 41
+  team_id: 22
+  repo_id: 61
diff --git a/models/fixtures/team_unit.yml b/models/fixtures/team_unit.yml
new file mode 100644
index 0000000..de0e8d7
--- /dev/null
+++ b/models/fixtures/team_unit.yml
@@ -0,0 +1,324 @@
+-
+  id: 1
+  team_id: 1
+  type: 1
+  access_mode: 4
+
+-
+  id: 2
+  team_id: 1
+  type: 2
+  access_mode: 4
+
+-
+  id: 3
+  team_id: 1
+  type: 3
+  access_mode: 4
+
+-
+  id: 4
+  team_id: 1
+  type: 4
+  access_mode: 4
+
+-
+  id: 5
+  team_id: 1
+  type: 5
+  access_mode: 4
+
+-
+  id: 6
+  team_id: 1
+  type: 6
+  access_mode: 4
+
+-
+  id: 7
+  team_id: 1
+  type: 7
+  access_mode: 4
+
+-
+  id: 8
+  team_id: 2
+  type: 1
+  access_mode: 2
+
+-
+  id: 9
+  team_id: 2
+  type: 2
+  access_mode: 2
+
+-
+  id: 10
+  team_id: 2
+  type: 3
+  access_mode: 2
+
+-
+  id: 11
+  team_id: 2
+  type: 4
+  access_mode: 2
+
+-
+  id: 12
+  team_id: 2
+  type: 5
+  access_mode: 2
+
+-
+  id: 13
+  team_id: 2
+  type: 6
+  access_mode: 2
+
+-
+  id: 14
+  team_id: 2
+  type: 7
+  access_mode: 2
+
+-
+  id: 15
+  team_id: 3
+  type: 1
+  access_mode: 4
+
+-
+  id: 16
+  team_id: 3
+  type: 2
+  access_mode: 4
+
+-
+  id: 17
+  team_id: 3
+  type: 3
+  access_mode: 4
+
+-
+  id: 18
+  team_id: 3
+  type: 4
+  access_mode: 4
+
+-
+  id: 19
+  team_id: 3
+  type: 5
+  access_mode: 4
+
+-
+  id: 20
+  team_id: 3
+  type: 6
+  access_mode: 4
+
+-
+  id: 21
+  team_id: 3
+  type: 7
+  access_mode: 4
+
+-
+  id: 22
+  team_id: 4
+  type: 1
+  access_mode: 4
+
+-
+  id: 23
+  team_id: 4
+  type: 2
+  access_mode: 4
+
+-
+  id: 24
+  team_id: 4
+  type: 3
+  access_mode: 4
+
+-
+  id: 25
+  team_id: 4
+  type: 4
+  access_mode: 4
+
+-
+  id: 26
+  team_id: 4
+  type: 5
+  access_mode: 4
+
+-
+  id: 27
+  team_id: 4
+  type: 6
+  access_mode: 4
+
+-
+  id: 28
+  team_id: 4
+  type: 7
+  access_mode: 4
+
+-
+  id: 29
+  team_id: 5
+  type: 1
+  access_mode: 4
+
+-
+  id: 30
+  team_id: 5
+  type: 2
+  access_mode: 4
+
+-
+  id: 31
+  team_id: 5
+  type: 3
+  access_mode: 4
+
+-
+  id: 32
+  team_id: 5
+  type: 4
+  access_mode: 4
+
+-
+  id: 33
+  team_id: 5
+  type: 5
+  access_mode: 4
+
+-
+  id: 34
+  team_id: 5
+  type: 6
+  access_mode: 4
+
+-
+  id: 35
+  team_id: 5
+  type: 7
+  access_mode: 4
+
+-
+  id: 36
+  team_id: 6
+  type: 1
+  access_mode: 4
+
+-
+  id: 37
+  team_id: 6
+  type: 2
+  access_mode: 4
+
+-
+  id: 38
+  team_id: 6
+  type: 3
+  access_mode: 4
+
+-
+  id: 39
+  team_id: 6
+  type: 4
+  access_mode: 4
+
+-
+  id: 40
+  team_id: 6
+  type: 5
+  access_mode: 4
+
+-
+  id: 41
+  team_id: 6
+  type: 6
+  access_mode: 4
+
+-
+  id: 42
+  team_id: 6
+  type: 7
+  access_mode: 4
+
+-
+  id: 43
+  org_id: 3
+  team_id: 7
+  type: 2 # issues
+  access_mode: 2
+
+-
+  id: 44
+  team_id: 8
+  type: 2 # issues
+  access_mode: 2
+
+-
+  id: 45
+  team_id: 9
+  type: 1 # code
+  access_mode: 1
+
+-
+  id: 46
+  team_id: 17
+  type: 9 # package
+  access_mode: 2
+
+-
+  id: 47
+  team_id: 20
+  type: 9 # package
+  access_mode: 2
+
+-
+  id: 48
+  team_id: 2
+  type: 8
+  access_mode: 2
+
+-
+  id: 49
+  team_id: 21
+  type: 1
+  access_mode: 4
+
+-
+  id: 50
+  team_id: 21
+  type: 2
+  access_mode: 4
+
+-
+  id: 51
+  team_id: 21
+  type: 3
+  access_mode: 4
+
+-
+  id: 52
+  team_id: 22
+  type: 1
+  access_mode: 1
+
+-
+  id: 53
+  team_id: 22
+  type: 2
+  access_mode: 1
+
+-
+  id: 54
+  team_id: 22
+  type: 3
+  access_mode: 1
diff --git a/models/fixtures/team_user.yml b/models/fixtures/team_user.yml
new file mode 100644
index 0000000..02d57ae
--- /dev/null
+++ b/models/fixtures/team_user.yml
@@ -0,0 +1,149 @@
+-
+  id: 1
+  org_id: 3
+  team_id: 1
+  uid: 2
+
+-
+  id: 2
+  org_id: 3
+  team_id: 2
+  uid: 2
+
+-
+  id: 3
+  org_id: 3
+  team_id: 2
+  uid: 4
+
+-
+  id: 4
+  org_id: 6
+  team_id: 3
+  uid: 5
+
+-
+  id: 5
+  org_id: 7
+  team_id: 4
+  uid: 5
+
+-
+  id: 6
+  org_id: 17
+  team_id: 5
+  uid: 15
+
+-
+  id: 7
+  org_id: 17
+  team_id: 5
+  uid: 18
+
+-
+  id: 8
+  org_id: 19
+  team_id: 6
+  uid: 20
+
+-
+  id: 9
+  org_id: 3
+  team_id: 7
+  uid: 15
+
+-
+  id: 10
+  org_id: 17
+  team_id: 8
+  uid: 2
+
+-
+  id: 11
+  org_id: 17
+  team_id: 9
+  uid: 20
+
+-
+  id: 12
+  org_id: 25
+  team_id: 10
+  uid: 24
+
+-
+  id: 13
+  org_id: 3
+  team_id: 12
+  uid: 28
+
+-
+  id: 14
+  org_id: 6
+  team_id: 13
+  uid: 28
+
+-
+  id: 15
+  org_id: 17
+  team_id: 9
+  uid: 29
+
+-
+  id: 16
+  org_id: 19
+  team_id: 6
+  uid: 31
+
+-
+  id: 17
+  org_id: 3
+  team_id: 14
+  uid: 2
+
+-
+  id: 18
+  org_id: 23
+  team_id: 17
+  uid: 5
+
+-
+  id: 19
+  org_id: 35
+  team_id: 18
+  uid: 1
+
+-
+  id: 20
+  org_id: 36
+  team_id: 19
+  uid: 1
+
+-
+  id: 21
+  org_id: 36
+  team_id: 20
+  uid: 5
+
+-
+  id: 22
+  org_id: 17
+  team_id: 9
+  uid: 15
+
+-
+  id: 23
+  org_id: 41
+  team_id: 21
+  uid: 40
+
+-
+  id: 24
+  org_id: 41
+  team_id: 22
+  uid: 38
+
+-
+  id: 25
+  org_id: 41
+  team_id: 22
+  uid: 39
diff --git a/models/fixtures/topic.yml b/models/fixtures/topic.yml
new file mode 100644
index 0000000..055addf
--- /dev/null
+++ b/models/fixtures/topic.yml
@@ -0,0 +1,29 @@
+-
+  id: 1
+  name: golang
+  repo_count: 2
+
+-
+  id: 2
+  name: database
+  repo_count: 1
+
+-
+  id: 3
+  name: SQL
+  repo_count: 1
+
+-
+  id: 4
+  name: graphql
+  repo_count: 1
+
+-
+  id: 5
+  name: topicname1
+  repo_count: 1
+
+-
+  id: 6
+  name: topicname2
+  repo_count: 2
diff --git a/models/fixtures/tracked_time.yml b/models/fixtures/tracked_time.yml
new file mode 100644
index 0000000..768af38
--- /dev/null
+++ b/models/fixtures/tracked_time.yml
@@ -0,0 +1,71 @@
+-
+  id: 1
+  user_id: 1
+  issue_id: 1
+  time: 400
+  created_unix: 946684800
+  deleted: false
+
+-
+  id: 2
+  user_id: 2
+  issue_id: 2
+  time: 3661
+  created_unix: 946684801
+  deleted: false
+
+-
+  id: 3
+  user_id: 2
+  issue_id: 2
+  time: 1
+  created_unix: 946684802
+  deleted: false
+
+-
+  id: 4
+  user_id: -1
+  issue_id: 4
+  time: 1
+  created_unix: 946684803
+  deleted: false
+
+-
+  id: 5
+  user_id: 2
+  issue_id: 5
+  time: 1
+  created_unix: 946684804
+  deleted: false
+
+-
+  id: 6
+  user_id: 1
+  issue_id: 2
+  time: 20
+  created_unix: 946684812
+  deleted: false
+
+-
+  id: 7
+  user_id: 2
+  issue_id: 4
+  time: 3
+  created_unix: 946684813
+  deleted: false
+
+-
+  id: 8
+  user_id: 1
+  issue_id: 4
+  time: 71
+  created_unix: 947688814
+  deleted: false
+
+-
+  id: 9
+  user_id: 2
+  issue_id: 2
+  time: 100000
+  created_unix: 947688815
+  deleted: true
diff --git a/models/fixtures/two_factor.yml b/models/fixtures/two_factor.yml
new file mode 100644
index 0000000..d8cb852
--- /dev/null
+++ b/models/fixtures/two_factor.yml
@@ -0,0 +1,9 @@
+-
+  id: 1
+  uid: 24
+  secret: KlDporn6Ile4vFcKI8z7Z6sqK1Scj2Qp0ovtUzCZO6jVbRW2lAoT7UDxDPtrab8d2B9zKOocBRdBJnS8orsrUNrsyETY+jJHb79M82uZRioKbRUz15sfOpmJmEzkFeSg6S4LicUBQos=
+  scratch_salt: Qb5bq2DyR2
+  scratch_hash: 068eb9b8746e0bcfe332fac4457693df1bda55800eb0f6894d14ebb736ae6a24e0fc8fc5333c19f57f81599788f0b8e51ec1
+  last_used_passcode:
+  created_unix: 1564253724
+  updated_unix: 1564253724
diff --git a/models/fixtures/user.yml b/models/fixtures/user.yml
new file mode 100644
index 0000000..73b9a97
--- /dev/null
+++ b/models/fixtures/user.yml
@@ -0,0 +1,1520 @@
+# NOTE: all users should have a password of "password"
+
+- # NOTE: this user (id=1) is the admin
+  id: 1
+  lower_name: user1
+  name: user1
+  full_name: User One
+  email: user1@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user1
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: true
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar1
+  avatar_email: user1@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 2
+  lower_name: user2
+  name: user2
+  full_name: '   < U<se>r Tw<o > ><  '
+  email: user2@example.com
+  keep_email_private: true
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user2
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar2
+  avatar_email: user2@example.com
+  use_custom_avatar: false
+  num_followers: 2
+  num_following: 1
+  num_stars: 2
+  num_repos: 17
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 3
+  lower_name: org3
+  name: org3
+  full_name: ' <<<< >> >> > >> > >>> >> '
+  email: org3@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org3
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar3
+  avatar_email: org3@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 3
+  num_teams: 5
+  num_members: 3
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 4
+  lower_name: user4
+  name: user4
+  full_name: '          '
+  email: user4@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user4
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar4
+  avatar_email: user4@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 1
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 5
+  lower_name: user5
+  name: user5
+  full_name: User Five
+  email: user5@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user5
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: false
+  prohibit_login: false
+  avatar: avatar5
+  avatar_email: user5@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 6
+  lower_name: org6
+  name: org6
+  full_name: Org Six
+  email: org6@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org6
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar6
+  avatar_email: org6@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 2
+  num_members: 2
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 7
+  lower_name: org7
+  name: org7
+  full_name: Org Seven
+  email: org7@example.com
+  keep_email_private: false
+  email_notifications_preference: disabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org7
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar7
+  avatar_email: org7@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 1
+  num_members: 1
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 8
+  lower_name: user8
+  name: user8
+  full_name: User Eight
+  email: user8@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user8
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar8
+  avatar_email: user8@example.com
+  use_custom_avatar: false
+  num_followers: 1
+  num_following: 1
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 9
+  lower_name: user9
+  name: user9
+  full_name: User Nine
+  email: user9@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user9
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar9
+  avatar_email: user9@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+  created_unix: 1730468968
+
+-
+  id: 10
+  lower_name: user10
+  name: user10
+  full_name: User Ten
+  email: user10@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user10
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar10
+  avatar_email: user10@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 3
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 11
+  lower_name: user11
+  name: user11
+  full_name: User Eleven
+  email: user11@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user11
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar11
+  avatar_email: user11@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 12
+  lower_name: user12
+  name: user12
+  full_name: User 12
+  email: user12@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user12
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar12
+  avatar_email: user12@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 13
+  lower_name: user13
+  name: user13
+  full_name: User 13
+  email: user13@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user13
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar13
+  avatar_email: user13@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 14
+  lower_name: user14
+  name: user14
+  full_name: User 14
+  email: user14@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user14
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar14
+  avatar_email: user13@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 3
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 15
+  lower_name: user15
+  name: user15
+  full_name: User 15
+  email: user15@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user15
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar15
+  avatar_email: user15@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 4
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 16
+  lower_name: user16
+  name: user16
+  full_name: User 16
+  email: user16@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user16
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar16
+  avatar_email: user16@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 17
+  lower_name: org17
+  name: org17
+  full_name: org 17
+  email: org17@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org17
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar17
+  avatar_email: org17@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 3
+  num_members: 4
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 18
+  lower_name: user18
+  name: user18
+  full_name: User 18
+  email: user18@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user18
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar18
+  avatar_email: user18@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 19
+  lower_name: org19
+  name: org19
+  full_name: Org 19
+  email: org19@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org19
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar19
+  avatar_email: org19@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 1
+  num_members: 2
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 20
+  lower_name: user20
+  name: user20
+  full_name: User 20
+  email: user20@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user20
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar20
+  avatar_email: user20@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 4
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 21
+  lower_name: user21
+  name: user21
+  full_name: User 21
+  email: user21@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user21
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar21
+  avatar_email: user21@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 22
+  lower_name: limited_org
+  name: limited_org
+  full_name: Limited Org
+  email: limited_org@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: limited_org
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar22
+  avatar_email: limited_org@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 1
+  num_members: 0
+  visibility: 1
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 23
+  lower_name: privated_org
+  name: privated_org
+  full_name: Privated Org
+  email: privated_org@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: privated_org
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar23
+  avatar_email: privated_org@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 2
+  num_teams: 2
+  num_members: 1
+  visibility: 2
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 24
+  lower_name: user24
+  name: user24
+  full_name: user24
+  email: user24@example.com
+  keep_email_private: true
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user24
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar24
+  avatar_email: user24@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 25
+  lower_name: org25
+  name: org25
+  full_name: org25
+  email: org25@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org25
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar25
+  avatar_email: org25@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 1
+  num_members: 1
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 26
+  lower_name: org26
+  name: org26
+  full_name: Org26
+  email: org26@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org26
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar26
+  avatar_email: org26@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 4
+  num_teams: 1
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: true
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 27
+  lower_name: user27
+  name: user27
+  full_name: User Twenty-Seven
+  email: user27@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user27
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar27
+  avatar_email: user27@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 3
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 28
+  lower_name: user28
+  name: user28
+  full_name: user27
+  email: user28@example.com
+  keep_email_private: true
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user28
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar28
+  avatar_email: user28@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 29
+  lower_name: user29
+  name: user29
+  full_name: User 29
+  email: user29@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user29
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: true
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar29
+  avatar_email: user29@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 30
+  lower_name: user30
+  name: user30
+  full_name: User Thirty
+  email: user30@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user30
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar29
+  avatar_email: user30@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 4
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 31
+  lower_name: user31
+  name: user31
+  full_name: user31
+  email: user31@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user31
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar31
+  avatar_email: user31@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 1
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 2
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 32
+  lower_name: user32
+  name: user32
+  full_name: User 32 (U2F test)
+  email: user32@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:notpassword
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user32
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar32
+  avatar_email: user30@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 33
+  lower_name: user33
+  name: user33
+  full_name: User 33 (Limited Visibility)
+  email: user33@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user33
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar33
+  avatar_email: user33@example.com
+  use_custom_avatar: false
+  num_followers: 1
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 1
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 34
+  lower_name: the_34-user.with.all.allowedchars
+  name: the_34-user.with.all.allowedChars
+  full_name: the_1-user.with.all.allowedChars
+  description: 'some [commonmark](https://commonmark.org/)!'
+  email: user34@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: the_34-user.with.all.allowedchars
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: false
+  prohibit_login: false
+  avatar: avatar34
+  avatar_email: user34@example.com
+  use_custom_avatar: true
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 35
+  lower_name: private_org35
+  name: private_org35
+  full_name: Private Org 35
+  email: private_org35@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: private_org35
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar35
+  avatar_email: private_org35@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 1
+  num_members: 1
+  visibility: 2
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 36
+  lower_name: limited_org36
+  name: limited_org36
+  full_name: Limited Org 36
+  email: abcde@gitea.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: limited_org36
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar22
+  avatar_email: abcde@gitea.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 2
+  num_members: 2
+  visibility: 1
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 37
+  lower_name: user37
+  name: user37
+  full_name: User 37
+  email: user37@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user37
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: true
+  avatar: avatar29
+  avatar_email: user37@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 38
+  lower_name: user38
+  name: user38
+  full_name: User38
+  email: user38@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user38
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar38
+  avatar_email: user38@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 39
+  lower_name: user39
+  name: user39
+  full_name: User39
+  email: user39@example.com
+  keep_email_private: false
+  email_notifications_preference: enabled
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user39
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar39
+  avatar_email: user39@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 40
+  lower_name: user40
+  name: user40
+  full_name: User40
+  email: user40@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: user40
+  type: 0
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar40
+  avatar_email: user40@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
+
+-
+  id: 41
+  lower_name: org41
+  name: org41
+  full_name: Org41
+  email: org41@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 0
+  login_name: org41
+  type: 1
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: false
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: false
+  avatar: avatar41
+  avatar_email: org41@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 1
+  num_teams: 2
+  num_members: 3
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
diff --git a/models/fixtures/user_open_id.yml b/models/fixtures/user_open_id.yml
new file mode 100644
index 0000000..d3a367b
--- /dev/null
+++ b/models/fixtures/user_open_id.yml
@@ -0,0 +1,17 @@
+-
+  id: 1
+  uid: 1
+  uri: https://user1.domain1.tld/
+  show: false
+
+-
+  id: 2
+  uid: 1
+  uri: http://user1.domain2.tld/
+  show: true
+
+-
+  id: 3
+  uid: 2
+  uri: https://domain1.tld/user2/
+  show: true
diff --git a/models/fixtures/user_redirect.yml b/models/fixtures/user_redirect.yml
new file mode 100644
index 0000000..8ff7993
--- /dev/null
+++ b/models/fixtures/user_redirect.yml
@@ -0,0 +1,4 @@
+-
+  id: 1
+  lower_name: olduser1
+  redirect_user_id: 1
diff --git a/models/fixtures/watch.yml b/models/fixtures/watch.yml
new file mode 100644
index 0000000..c6c9726
--- /dev/null
+++ b/models/fixtures/watch.yml
@@ -0,0 +1,35 @@
+-
+  id: 1
+  user_id: 1
+  repo_id: 1
+  mode: 1 # normal
+
+-
+  id: 2
+  user_id: 4
+  repo_id: 1
+  mode: 1 # normal
+
+-
+  id: 3
+  user_id: 9
+  repo_id: 1
+  mode: 1 # normal
+
+-
+  id: 4
+  user_id: 8
+  repo_id: 1
+  mode: 2 # don't watch
+
+-
+  id: 5
+  user_id: 11
+  repo_id: 1
+  mode: 3 # auto
+
+-
+  id: 6
+  user_id: 4
+  repo_id: 2
+  mode: 1 # normal
diff --git a/models/fixtures/webauthn_credential.yml b/models/fixtures/webauthn_credential.yml
new file mode 100644
index 0000000..edf9935
--- /dev/null
+++ b/models/fixtures/webauthn_credential.yml
@@ -0,0 +1,10 @@
+-
+  id: 1
+  name: WebAuthn credential
+  user_id: 32
+  attestation_type: none
+  sign_count: 0
+  clone_warning: false
+  legacy: true
+  created_unix: 946684800
+  updated_unix: 946684800
diff --git a/models/fixtures/webhook.yml b/models/fixtures/webhook.yml
new file mode 100644
index 0000000..cab5c5a
--- /dev/null
+++ b/models/fixtures/webhook.yml
@@ -0,0 +1,37 @@
+-
+  id: 1
+  repo_id: 1
+  url: http://www.example.com/url1
+  http_method: POST
+  type: forgejo
+  content_type: 1 # json
+  events: '{"push_only":true,"send_everything":false,"choose_events":false,"events":{"create":false,"push":true,"pull_request":false}}'
+  is_active: false # disable to prevent sending hook task during unrelated tests
+
+-
+  id: 2
+  repo_id: 1
+  url: http://www.example.com/url2
+  http_method: POST
+  content_type: 1 # json
+  events: '{"push_only":false,"send_everything":false,"choose_events":false,"events":{"create":false,"push":true,"pull_request":true}}'
+  is_active: false
+
+-
+  id: 3
+  owner_id: 3
+  repo_id: 3
+  url: http://www.example.com/url3
+  http_method: POST
+  content_type: 1 # json
+  events: '{"push_only":false,"send_everything":false,"choose_events":false,"events":{"create":false,"push":true,"pull_request":true}}'
+  is_active: false
+-
+  id: 4
+  repo_id: 2
+  type: gitea
+  url: http://www.example.com/url4
+  http_method: POST
+  content_type: 1 # json
+  events: '{"send_everything":true,"branch_filter":"{master,feature*}"}'
+  is_active: false
diff --git a/models/forgefed/federationhost.go b/models/forgefed/federationhost.go
new file mode 100644
index 0000000..b60c0c3
--- /dev/null
+++ b/models/forgefed/federationhost.go
@@ -0,0 +1,52 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgefed
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+// FederationHost data type
+// swagger:model
+type FederationHost struct {
+	ID             int64              `xorm:"pk autoincr"`
+	HostFqdn       string             `xorm:"host_fqdn UNIQUE INDEX VARCHAR(255) NOT NULL"`
+	NodeInfo       NodeInfo           `xorm:"extends NOT NULL"`
+	LatestActivity time.Time          `xorm:"NOT NULL"`
+	Created        timeutil.TimeStamp `xorm:"created"`
+	Updated        timeutil.TimeStamp `xorm:"updated"`
+}
+
+// Factory function for FederationHost. Created struct is asserted to be valid.
+func NewFederationHost(nodeInfo NodeInfo, hostFqdn string) (FederationHost, error) {
+	result := FederationHost{
+		HostFqdn: strings.ToLower(hostFqdn),
+		NodeInfo: nodeInfo,
+	}
+	if valid, err := validation.IsValid(result); !valid {
+		return FederationHost{}, err
+	}
+	return result, nil
+}
+
+// Validate collects error strings in a slice and returns this
+func (host FederationHost) Validate() []string {
+	var result []string
+	result = append(result, validation.ValidateNotEmpty(host.HostFqdn, "HostFqdn")...)
+	result = append(result, validation.ValidateMaxLen(host.HostFqdn, 255, "HostFqdn")...)
+	result = append(result, host.NodeInfo.Validate()...)
+	if host.HostFqdn != strings.ToLower(host.HostFqdn) {
+		result = append(result, fmt.Sprintf("HostFqdn has to be lower case but was: %v", host.HostFqdn))
+	}
+	if !host.LatestActivity.IsZero() && host.LatestActivity.After(time.Now().Add(10*time.Minute)) {
+		result = append(result, fmt.Sprintf("Latest Activity cannot be in the far future: %v", host.LatestActivity))
+	}
+
+	return result
+}
diff --git a/models/forgefed/federationhost_repository.go b/models/forgefed/federationhost_repository.go
new file mode 100644
index 0000000..03d8741
--- /dev/null
+++ b/models/forgefed/federationhost_repository.go
@@ -0,0 +1,61 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgefed
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func init() {
+	db.RegisterModel(new(FederationHost))
+}
+
+func GetFederationHost(ctx context.Context, ID int64) (*FederationHost, error) {
+	host := new(FederationHost)
+	has, err := db.GetEngine(ctx).Where("id=?", ID).Get(host)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, fmt.Errorf("FederationInfo record %v does not exist", ID)
+	}
+	if res, err := validation.IsValid(host); !res {
+		return nil, err
+	}
+	return host, nil
+}
+
+func FindFederationHostByFqdn(ctx context.Context, fqdn string) (*FederationHost, error) {
+	host := new(FederationHost)
+	has, err := db.GetEngine(ctx).Where("host_fqdn=?", strings.ToLower(fqdn)).Get(host)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	if res, err := validation.IsValid(host); !res {
+		return nil, err
+	}
+	return host, nil
+}
+
+func CreateFederationHost(ctx context.Context, host *FederationHost) error {
+	if res, err := validation.IsValid(host); !res {
+		return err
+	}
+	_, err := db.GetEngine(ctx).Insert(host)
+	return err
+}
+
+func UpdateFederationHost(ctx context.Context, host *FederationHost) error {
+	if res, err := validation.IsValid(host); !res {
+		return err
+	}
+	_, err := db.GetEngine(ctx).ID(host.ID).Update(host)
+	return err
+}
diff --git a/models/forgefed/federationhost_test.go b/models/forgefed/federationhost_test.go
new file mode 100644
index 0000000..ea5494c
--- /dev/null
+++ b/models/forgefed/federationhost_test.go
@@ -0,0 +1,78 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgefed
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func Test_FederationHostValidation(t *testing.T) {
+	sut := FederationHost{
+		HostFqdn: "host.do.main",
+		NodeInfo: NodeInfo{
+			SoftwareName: "forgejo",
+		},
+		LatestActivity: time.Now(),
+	}
+	if res, err := validation.IsValid(sut); !res {
+		t.Errorf("sut should be valid but was %q", err)
+	}
+
+	sut = FederationHost{
+		HostFqdn: "",
+		NodeInfo: NodeInfo{
+			SoftwareName: "forgejo",
+		},
+		LatestActivity: time.Now(),
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid: HostFqdn empty")
+	}
+
+	sut = FederationHost{
+		HostFqdn: strings.Repeat("fill", 64),
+		NodeInfo: NodeInfo{
+			SoftwareName: "forgejo",
+		},
+		LatestActivity: time.Now(),
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid: HostFqdn too long (len=256)")
+	}
+
+	sut = FederationHost{
+		HostFqdn:       "host.do.main",
+		NodeInfo:       NodeInfo{},
+		LatestActivity: time.Now(),
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid: NodeInfo invalid")
+	}
+
+	sut = FederationHost{
+		HostFqdn: "host.do.main",
+		NodeInfo: NodeInfo{
+			SoftwareName: "forgejo",
+		},
+		LatestActivity: time.Now().Add(1 * time.Hour),
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid: Future timestamp")
+	}
+
+	sut = FederationHost{
+		HostFqdn: "hOst.do.main",
+		NodeInfo: NodeInfo{
+			SoftwareName: "forgejo",
+		},
+		LatestActivity: time.Now(),
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid: HostFqdn lower case")
+	}
+}
diff --git a/models/forgefed/nodeinfo.go b/models/forgefed/nodeinfo.go
new file mode 100644
index 0000000..66d2eca
--- /dev/null
+++ b/models/forgefed/nodeinfo.go
@@ -0,0 +1,123 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgefed
+
+import (
+	"net/url"
+
+	"code.gitea.io/gitea/modules/validation"
+
+	"github.com/valyala/fastjson"
+)
+
+// ToDo: Search for full text SourceType and Source, also in .md files
+type (
+	SoftwareNameType string
+)
+
+const (
+	ForgejoSourceType SoftwareNameType = "forgejo"
+	GiteaSourceType   SoftwareNameType = "gitea"
+)
+
+var KnownSourceTypes = []any{
+	ForgejoSourceType, GiteaSourceType,
+}
+
+// ------------------------------------------------ NodeInfoWellKnown ------------------------------------------------
+
+// NodeInfo data type
+// swagger:model
+type NodeInfoWellKnown struct {
+	Href string
+}
+
+// Factory function for NodeInfoWellKnown. Created struct is asserted to be valid.
+func NewNodeInfoWellKnown(body []byte) (NodeInfoWellKnown, error) {
+	result, err := NodeInfoWellKnownUnmarshalJSON(body)
+	if err != nil {
+		return NodeInfoWellKnown{}, err
+	}
+
+	if valid, err := validation.IsValid(result); !valid {
+		return NodeInfoWellKnown{}, err
+	}
+
+	return result, nil
+}
+
+func NodeInfoWellKnownUnmarshalJSON(data []byte) (NodeInfoWellKnown, error) {
+	p := fastjson.Parser{}
+	val, err := p.ParseBytes(data)
+	if err != nil {
+		return NodeInfoWellKnown{}, err
+	}
+	href := string(val.GetStringBytes("links", "0", "href"))
+	return NodeInfoWellKnown{Href: href}, nil
+}
+
+// Validate collects error strings in a slice and returns this
+func (node NodeInfoWellKnown) Validate() []string {
+	var result []string
+	result = append(result, validation.ValidateNotEmpty(node.Href, "Href")...)
+
+	parsedURL, err := url.Parse(node.Href)
+	if err != nil {
+		result = append(result, err.Error())
+		return result
+	}
+
+	if parsedURL.Host == "" {
+		result = append(result, "Href has to be absolute")
+	}
+
+	result = append(result, validation.ValidateOneOf(parsedURL.Scheme, []any{"http", "https"}, "parsedURL.Scheme")...)
+
+	if parsedURL.RawQuery != "" {
+		result = append(result, "Href may not contain query")
+	}
+
+	return result
+}
+
+// ------------------------------------------------ NodeInfo ------------------------------------------------
+
+// NodeInfo data type
+// swagger:model
+type NodeInfo struct {
+	SoftwareName SoftwareNameType
+}
+
+func NodeInfoUnmarshalJSON(data []byte) (NodeInfo, error) {
+	p := fastjson.Parser{}
+	val, err := p.ParseBytes(data)
+	if err != nil {
+		return NodeInfo{}, err
+	}
+	source := string(val.GetStringBytes("software", "name"))
+	result := NodeInfo{}
+	result.SoftwareName = SoftwareNameType(source)
+	return result, nil
+}
+
+func NewNodeInfo(body []byte) (NodeInfo, error) {
+	result, err := NodeInfoUnmarshalJSON(body)
+	if err != nil {
+		return NodeInfo{}, err
+	}
+
+	if valid, err := validation.IsValid(result); !valid {
+		return NodeInfo{}, err
+	}
+	return result, nil
+}
+
+// Validate collects error strings in a slice and returns this
+func (node NodeInfo) Validate() []string {
+	var result []string
+	result = append(result, validation.ValidateNotEmpty(string(node.SoftwareName), "node.SoftwareName")...)
+	result = append(result, validation.ValidateOneOf(node.SoftwareName, KnownSourceTypes, "node.SoftwareName")...)
+
+	return result
+}
diff --git a/models/forgefed/nodeinfo_test.go b/models/forgefed/nodeinfo_test.go
new file mode 100644
index 0000000..4c73bb4
--- /dev/null
+++ b/models/forgefed/nodeinfo_test.go
@@ -0,0 +1,92 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgefed
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func Test_NodeInfoWellKnownUnmarshalJSON(t *testing.T) {
+	type testPair struct {
+		item    []byte
+		want    NodeInfoWellKnown
+		wantErr error
+	}
+
+	tests := map[string]testPair{
+		"with href": {
+			item: []byte(`{"links":[{"href":"https://federated-repo.prod.meissa.de/api/v1/nodeinfo","rel":"http://nodeinfo.diaspora.software/ns/schema/2.1"}]}`),
+			want: NodeInfoWellKnown{
+				Href: "https://federated-repo.prod.meissa.de/api/v1/nodeinfo",
+			},
+		},
+		"empty": {
+			item:    []byte(``),
+			wantErr: fmt.Errorf("cannot parse JSON: cannot parse empty string; unparsed tail: \"\""),
+		},
+	}
+
+	for name, tt := range tests {
+		t.Run(name, func(t *testing.T) {
+			got, err := NodeInfoWellKnownUnmarshalJSON(tt.item)
+			if (err != nil || tt.wantErr != nil) && tt.wantErr.Error() != err.Error() {
+				t.Errorf("UnmarshalJSON() error = \"%v\", wantErr \"%v\"", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("UnmarshalJSON() got = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_NodeInfoWellKnownValidate(t *testing.T) {
+	sut := NodeInfoWellKnown{Href: "https://federated-repo.prod.meissa.de/api/v1/nodeinfo"}
+	if b, err := validation.IsValid(sut); !b {
+		t.Errorf("sut should be valid, %v, %v", sut, err)
+	}
+
+	sut = NodeInfoWellKnown{Href: "./federated-repo.prod.meissa.de/api/v1/nodeinfo"}
+	_, err := validation.IsValid(sut)
+	if !validation.IsErrNotValid(err) && strings.Contains(err.Error(), "Href has to be absolute\nValue  is not contained in allowed values [http https]") {
+		t.Errorf("validation error expected but was: %v\n", err)
+	}
+
+	sut = NodeInfoWellKnown{Href: "https://federated-repo.prod.meissa.de/api/v1/nodeinfo?alert=1"}
+	_, err = validation.IsValid(sut)
+	if !validation.IsErrNotValid(err) && strings.Contains(err.Error(), "Href has to be absolute\nValue  is not contained in allowed values [http https]") {
+		t.Errorf("sut should be valid, %v, %v", sut, err)
+	}
+}
+
+func Test_NewNodeInfoWellKnown(t *testing.T) {
+	sut, _ := NewNodeInfoWellKnown([]byte(`{"links":[{"href":"https://federated-repo.prod.meissa.de/api/v1/nodeinfo","rel":"http://nodeinfo.diaspora.software/ns/schema/2.1"}]}`))
+	expected := NodeInfoWellKnown{Href: "https://federated-repo.prod.meissa.de/api/v1/nodeinfo"}
+	if sut != expected {
+		t.Errorf("expected was: %v but was: %v", expected, sut)
+	}
+
+	_, err := NewNodeInfoWellKnown([]byte(`invalid`))
+	if err == nil {
+		t.Errorf("error was expected here")
+	}
+}
+
+func Test_NewNodeInfo(t *testing.T) {
+	sut, _ := NewNodeInfo([]byte(`{"version":"2.1","software":{"name":"gitea","version":"1.20.0+dev-2539-g5840cc6d3","repository":"https://github.com/go-gitea/gitea.git","homepage":"https://gitea.io/"},"protocols":["activitypub"],"services":{"inbound":[],"outbound":["rss2.0"]},"openRegistrations":true,"usage":{"users":{"total":13,"activeHalfyear":1,"activeMonth":1}},"metadata":{}}`))
+	expected := NodeInfo{SoftwareName: "gitea"}
+	if sut != expected {
+		t.Errorf("expected was: %v but was: %v", expected, sut)
+	}
+
+	_, err := NewNodeInfo([]byte(`invalid`))
+	if err == nil {
+		t.Errorf("error was expected here")
+	}
+}
diff --git a/models/forgejo/semver/main_test.go b/models/forgejo/semver/main_test.go
new file mode 100644
index 0000000..fa56182
--- /dev/null
+++ b/models/forgejo/semver/main_test.go
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+
+package semver
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/forgejo/semver/semver.go b/models/forgejo/semver/semver.go
new file mode 100644
index 0000000..7f122d2
--- /dev/null
+++ b/models/forgejo/semver/semver.go
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: MIT
+
+package semver
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+
+	"github.com/hashicorp/go-version"
+)
+
+func init() {
+	db.RegisterModel(new(ForgejoSemVer))
+}
+
+var DefaultVersionString = "1.0.0"
+
+type ForgejoSemVer struct {
+	Version string
+}
+
+func GetVersion(ctx context.Context) (*version.Version, error) {
+	return GetVersionWithEngine(db.GetEngine(ctx))
+}
+
+func GetVersionWithEngine(e db.Engine) (*version.Version, error) {
+	versionString := DefaultVersionString
+
+	exists, err := e.IsTableExist("forgejo_sem_ver")
+	if err != nil {
+		return nil, err
+	}
+	if exists {
+		var semver ForgejoSemVer
+		has, err := e.Get(&semver)
+		if err != nil {
+			return nil, err
+		} else if has {
+			versionString = semver.Version
+		}
+	}
+
+	v, err := version.NewVersion(versionString)
+	if err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+func SetVersionString(ctx context.Context, versionString string) error {
+	return SetVersionStringWithEngine(db.GetEngine(ctx), versionString)
+}
+
+func SetVersionStringWithEngine(e db.Engine, versionString string) error {
+	v, err := version.NewVersion(versionString)
+	if err != nil {
+		return err
+	}
+	return SetVersionWithEngine(e, v)
+}
+
+func SetVersion(ctx context.Context, v *version.Version) error {
+	return SetVersionWithEngine(db.GetEngine(ctx), v)
+}
+
+func SetVersionWithEngine(e db.Engine, v *version.Version) error {
+	var semver ForgejoSemVer
+	has, err := e.Get(&semver)
+	if err != nil {
+		return err
+	}
+
+	if !has {
+		_, err = e.Exec("insert into forgejo_sem_ver values (?)", v.String())
+	} else {
+		_, err = e.Exec("update forgejo_sem_ver set version = ?", v.String())
+	}
+	return err
+}
diff --git a/models/forgejo/semver/semver_test.go b/models/forgejo/semver/semver_test.go
new file mode 100644
index 0000000..a508c69
--- /dev/null
+++ b/models/forgejo/semver/semver_test.go
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: MIT
+
+package semver
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/hashicorp/go-version"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestForgejoSemVerSetGet(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ctx := db.DefaultContext
+
+	newVersion, err := version.NewVersion("v1.2.3")
+	require.NoError(t, err)
+	require.NoError(t, SetVersionString(ctx, newVersion.String()))
+	databaseVersion, err := GetVersion(ctx)
+	require.NoError(t, err)
+	assert.EqualValues(t, newVersion.String(), databaseVersion.String())
+	assert.True(t, newVersion.Equal(databaseVersion))
+}
+
+func TestForgejoSemVerMissing(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ctx := db.DefaultContext
+	e := db.GetEngine(ctx)
+
+	_, err := e.Exec("delete from forgejo_sem_ver")
+	require.NoError(t, err)
+
+	v, err := GetVersion(ctx)
+	require.NoError(t, err)
+	assert.EqualValues(t, "1.0.0", v.String())
+
+	_, err = e.Exec("drop table forgejo_sem_ver")
+	require.NoError(t, err)
+
+	v, err = GetVersion(ctx)
+	require.NoError(t, err)
+	assert.EqualValues(t, "1.0.0", v.String())
+}
diff --git a/models/forgejo_migrations/main_test.go b/models/forgejo_migrations/main_test.go
new file mode 100644
index 0000000..2297f74
--- /dev/null
+++ b/models/forgejo_migrations/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/forgejo_migrations/migrate.go b/models/forgejo_migrations/migrate.go
new file mode 100644
index 0000000..cca83d6
--- /dev/null
+++ b/models/forgejo_migrations/migrate.go
@@ -0,0 +1,192 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"code.gitea.io/gitea/models/forgejo/semver"
+	forgejo_v1_20 "code.gitea.io/gitea/models/forgejo_migrations/v1_20"
+	forgejo_v1_22 "code.gitea.io/gitea/models/forgejo_migrations/v1_22"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/names"
+)
+
+// ForgejoVersion describes the Forgejo version table. Should have only one row with id = 1.
+type ForgejoVersion struct {
+	ID      int64 `xorm:"pk autoincr"`
+	Version int64
+}
+
+type Migration struct {
+	description string
+	migrate     func(*xorm.Engine) error
+}
+
+// NewMigration creates a new migration.
+func NewMigration(desc string, fn func(*xorm.Engine) error) *Migration {
+	return &Migration{desc, fn}
+}
+
+// This is a sequence of additional Forgejo migrations.
+// Add new migrations to the bottom of the list.
+var migrations = []*Migration{
+	// v0 -> v1
+	NewMigration("Create the `forgejo_blocked_user` table", forgejo_v1_20.AddForgejoBlockedUser),
+	// v1 -> v2
+	NewMigration("Create the `forgejo_sem_ver` table", forgejo_v1_20.CreateSemVerTable),
+	// v2 -> v3
+	NewMigration("Create the `forgejo_auth_token` table", forgejo_v1_20.CreateAuthorizationTokenTable),
+	// v3 -> v4
+	NewMigration("Add the `default_permissions` column to the `repo_unit` table", forgejo_v1_22.AddDefaultPermissionsToRepoUnit),
+	// v4 -> v5
+	NewMigration("Create the `forgejo_repo_flag` table", forgejo_v1_22.CreateRepoFlagTable),
+	// v5 -> v6
+	NewMigration("Add the `wiki_branch` column to the `repository` table", forgejo_v1_22.AddWikiBranchToRepository),
+	// v6 -> v7
+	NewMigration("Add the `enable_repo_unit_hints` column to the `user` table", forgejo_v1_22.AddUserRepoUnitHintsSetting),
+	// v7 -> v8
+	NewMigration("Modify the `release`.`note` content to remove SSH signatures", forgejo_v1_22.RemoveSSHSignaturesFromReleaseNotes),
+	// v8 -> v9
+	NewMigration("Add the `apply_to_admins` column to the `protected_branch` table", forgejo_v1_22.AddApplyToAdminsSetting),
+	// v9 -> v10
+	NewMigration("Add pronouns to user", forgejo_v1_22.AddPronounsToUser),
+	// v11 -> v12
+	NewMigration("Add the `created` column to the `issue` table", forgejo_v1_22.AddCreatedToIssue),
+	// v12 -> v13
+	NewMigration("Add repo_archive_download_count table", forgejo_v1_22.AddRepoArchiveDownloadCount),
+	// v13 -> v14
+	NewMigration("Add `hide_archive_links` column to `release` table", AddHideArchiveLinksToRelease),
+	// v14 -> v15
+	NewMigration("Remove Gitea-specific columns from the repository and badge tables", RemoveGiteaSpecificColumnsFromRepositoryAndBadge),
+	// v15 -> v16
+	NewMigration("Create the `federation_host` table", CreateFederationHostTable),
+	// v16 -> v17
+	NewMigration("Create the `federated_user` table", CreateFederatedUserTable),
+	// v17 -> v18
+	NewMigration("Add `normalized_federated_uri` column to `user` table", AddNormalizedFederatedURIToUser),
+	// v18 -> v19
+	NewMigration("Create the `following_repo` table", CreateFollowingRepoTable),
+	// v19 -> v20
+	NewMigration("Add external_url to attachment table", AddExternalURLColumnToAttachmentTable),
+	// v20 -> v21
+	NewMigration("Creating Quota-related tables", CreateQuotaTables),
+	// v21 -> v22
+	NewMigration("Add SSH keypair to `pull_mirror` table", AddSSHKeypairToPushMirror),
+	// v22 -> v23
+	NewMigration("Add `legacy` to `web_authn_credential` table", AddLegacyToWebAuthnCredential),
+}
+
+// GetCurrentDBVersion returns the current Forgejo database version.
+func GetCurrentDBVersion(x *xorm.Engine) (int64, error) {
+	if err := x.Sync(new(ForgejoVersion)); err != nil {
+		return -1, fmt.Errorf("sync: %w", err)
+	}
+
+	currentVersion := &ForgejoVersion{ID: 1}
+	has, err := x.Get(currentVersion)
+	if err != nil {
+		return -1, fmt.Errorf("get: %w", err)
+	}
+	if !has {
+		return -1, nil
+	}
+	return currentVersion.Version, nil
+}
+
+// ExpectedVersion returns the expected Forgejo database version.
+func ExpectedVersion() int64 {
+	return int64(len(migrations))
+}
+
+// EnsureUpToDate will check if the Forgejo database is at the correct version.
+func EnsureUpToDate(x *xorm.Engine) error {
+	currentDB, err := GetCurrentDBVersion(x)
+	if err != nil {
+		return err
+	}
+
+	if currentDB < 0 {
+		return fmt.Errorf("database has not been initialized")
+	}
+
+	expected := ExpectedVersion()
+
+	if currentDB != expected {
+		return fmt.Errorf(`current Forgejo database version %d is not equal to the expected version %d. Please run "forgejo [--config /path/to/app.ini] migrate" to update the database version`, currentDB, expected)
+	}
+
+	return nil
+}
+
+// Migrate Forgejo database to current version.
+func Migrate(x *xorm.Engine) error {
+	// Set a new clean the default mapper to GonicMapper as that is the default for .
+	x.SetMapper(names.GonicMapper{})
+	if err := x.Sync(new(ForgejoVersion)); err != nil {
+		return fmt.Errorf("sync: %w", err)
+	}
+
+	currentVersion := &ForgejoVersion{ID: 1}
+	has, err := x.Get(currentVersion)
+	if err != nil {
+		return fmt.Errorf("get: %w", err)
+	} else if !has {
+		// If the version record does not exist we think
+		// it is a fresh installation and we can skip all migrations.
+		currentVersion.ID = 0
+		currentVersion.Version = ExpectedVersion()
+
+		if _, err = x.InsertOne(currentVersion); err != nil {
+			return fmt.Errorf("insert: %w", err)
+		}
+	}
+
+	v := currentVersion.Version
+
+	// Downgrading Forgejo's database version not supported
+	if v > ExpectedVersion() {
+		msg := fmt.Sprintf("Your Forgejo database (migration version: %d) is for a newer version of Forgejo, you cannot use the newer database for this old Forgejo release (%d).", v, ExpectedVersion())
+		msg += "\nForgejo will exit to keep your database safe and unchanged. Please use the correct Forgejo release, do not change the migration version manually (incorrect manual operation may cause data loss)."
+		if !setting.IsProd {
+			msg += fmt.Sprintf("\nIf you are in development and really know what you're doing, you can force changing the migration version by executing: UPDATE forgejo_version SET version=%d WHERE id=1;", ExpectedVersion())
+		}
+		_, _ = fmt.Fprintln(os.Stderr, msg)
+		log.Fatal(msg)
+		return nil
+	}
+
+	// Some migration tasks depend on the git command
+	if git.DefaultContext == nil {
+		if err = git.InitSimple(context.Background()); err != nil {
+			return err
+		}
+	}
+
+	// Migrate
+	for i, m := range migrations[v:] {
+		log.Info("Migration[%d]: %s", v+int64(i), m.description)
+		// Reset the mapper between each migration - migrations are not supposed to depend on each other
+		x.SetMapper(names.GonicMapper{})
+		if err = m.migrate(x); err != nil {
+			return fmt.Errorf("migration[%d]: %s failed: %w", v+int64(i), m.description, err)
+		}
+		currentVersion.Version = v + int64(i) + 1
+		if _, err = x.ID(1).Update(currentVersion); err != nil {
+			return err
+		}
+	}
+
+	if err := x.Sync(new(semver.ForgejoSemVer)); err != nil {
+		return fmt.Errorf("sync: %w", err)
+	}
+
+	return semver.SetVersionStringWithEngine(x, setting.ForgejoVersion)
+}
diff --git a/models/forgejo_migrations/migrate_test.go b/models/forgejo_migrations/migrate_test.go
new file mode 100644
index 0000000..48ee4f7
--- /dev/null
+++ b/models/forgejo_migrations/migrate_test.go
@@ -0,0 +1,39 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TestEnsureUpToDate tests the behavior of EnsureUpToDate.
+func TestEnsureUpToDate(t *testing.T) {
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(ForgejoVersion))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	// Ensure error if there's no row in Forgejo Version.
+	err := EnsureUpToDate(x)
+	require.Error(t, err)
+
+	// Insert 'good' Forgejo Version row.
+	_, err = x.InsertOne(&ForgejoVersion{ID: 1, Version: ExpectedVersion()})
+	require.NoError(t, err)
+
+	err = EnsureUpToDate(x)
+	require.NoError(t, err)
+
+	// Modify forgejo version to have a lower version.
+	_, err = x.Exec("UPDATE `forgejo_version` SET version = ? WHERE id = 1", ExpectedVersion()-1)
+	require.NoError(t, err)
+
+	err = EnsureUpToDate(x)
+	require.Error(t, err)
+}
diff --git a/models/forgejo_migrations/v13.go b/models/forgejo_migrations/v13.go
new file mode 100644
index 0000000..614f682
--- /dev/null
+++ b/models/forgejo_migrations/v13.go
@@ -0,0 +1,15 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddHideArchiveLinksToRelease(x *xorm.Engine) error {
+	type Release struct {
+		ID               int64 `xorm:"pk autoincr"`
+		HideArchiveLinks bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(&Release{})
+}
diff --git a/models/forgejo_migrations/v14.go b/models/forgejo_migrations/v14.go
new file mode 100644
index 0000000..f6dd35e
--- /dev/null
+++ b/models/forgejo_migrations/v14.go
@@ -0,0 +1,43 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func RemoveGiteaSpecificColumnsFromRepositoryAndBadge(x *xorm.Engine) error {
+	// Make sure the columns exist before dropping them
+	type Repository struct {
+		ID                int64
+		DefaultWikiBranch string
+	}
+	if err := x.Sync(&Repository{}); err != nil {
+		return err
+	}
+
+	type Badge struct {
+		ID   int64 `xorm:"pk autoincr"`
+		Slug string
+	}
+	err := x.Sync(new(Badge))
+	if err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "repository", "default_wiki_branch"); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "badge", "slug"); err != nil {
+		return err
+	}
+	return sess.Commit()
+}
diff --git a/models/forgejo_migrations/v15.go b/models/forgejo_migrations/v15.go
new file mode 100644
index 0000000..d7ed19c
--- /dev/null
+++ b/models/forgejo_migrations/v15.go
@@ -0,0 +1,33 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import (
+	"time"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+type (
+	SoftwareNameType string
+)
+
+type NodeInfo struct {
+	SoftwareName SoftwareNameType
+}
+
+type FederationHost struct {
+	ID             int64              `xorm:"pk autoincr"`
+	HostFqdn       string             `xorm:"host_fqdn UNIQUE INDEX VARCHAR(255) NOT NULL"`
+	NodeInfo       NodeInfo           `xorm:"extends NOT NULL"`
+	LatestActivity time.Time          `xorm:"NOT NULL"`
+	Created        timeutil.TimeStamp `xorm:"created"`
+	Updated        timeutil.TimeStamp `xorm:"updated"`
+}
+
+func CreateFederationHostTable(x *xorm.Engine) error {
+	return x.Sync(new(FederationHost))
+}
diff --git a/models/forgejo_migrations/v16.go b/models/forgejo_migrations/v16.go
new file mode 100644
index 0000000..f80bfc5
--- /dev/null
+++ b/models/forgejo_migrations/v16.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+type FederatedUser struct {
+	ID               int64  `xorm:"pk autoincr"`
+	UserID           int64  `xorm:"NOT NULL"`
+	ExternalID       string `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+	FederationHostID int64  `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+}
+
+func CreateFederatedUserTable(x *xorm.Engine) error {
+	return x.Sync(new(FederatedUser))
+}
diff --git a/models/forgejo_migrations/v17.go b/models/forgejo_migrations/v17.go
new file mode 100644
index 0000000..d6e2983
--- /dev/null
+++ b/models/forgejo_migrations/v17.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddNormalizedFederatedURIToUser(x *xorm.Engine) error {
+	type User struct {
+		ID                     int64 `xorm:"pk autoincr"`
+		NormalizedFederatedURI string
+	}
+	return x.Sync(&User{})
+}
diff --git a/models/forgejo_migrations/v18.go b/models/forgejo_migrations/v18.go
new file mode 100644
index 0000000..afccfbf
--- /dev/null
+++ b/models/forgejo_migrations/v18.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+type FollowingRepo struct {
+	ID               int64  `xorm:"pk autoincr"`
+	RepoID           int64  `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	ExternalID       string `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	FederationHostID int64  `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	URI              string
+}
+
+func CreateFollowingRepoTable(x *xorm.Engine) error {
+	return x.Sync(new(FederatedUser))
+}
diff --git a/models/forgejo_migrations/v19.go b/models/forgejo_migrations/v19.go
new file mode 100644
index 0000000..69b7746
--- /dev/null
+++ b/models/forgejo_migrations/v19.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddExternalURLColumnToAttachmentTable(x *xorm.Engine) error {
+	type Attachment struct {
+		ID          int64 `xorm:"pk autoincr"`
+		ExternalURL string
+	}
+	return x.Sync(new(Attachment))
+}
diff --git a/models/forgejo_migrations/v1_20/v1.go b/models/forgejo_migrations/v1_20/v1.go
new file mode 100644
index 0000000..1097613
--- /dev/null
+++ b/models/forgejo_migrations/v1_20/v1.go
@@ -0,0 +1,21 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_v1_20 //nolint:revive
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddForgejoBlockedUser(x *xorm.Engine) error {
+	type ForgejoBlockedUser struct {
+		ID          int64              `xorm:"pk autoincr"`
+		BlockID     int64              `xorm:"index"`
+		UserID      int64              `xorm:"index"`
+		CreatedUnix timeutil.TimeStamp `xorm:"created"`
+	}
+
+	return x.Sync(new(ForgejoBlockedUser))
+}
diff --git a/models/forgejo_migrations/v1_20/v2.go b/models/forgejo_migrations/v1_20/v2.go
new file mode 100644
index 0000000..39f3b58
--- /dev/null
+++ b/models/forgejo_migrations/v1_20/v2.go
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: MIT
+
+package forgejo_v1_20 //nolint:revive
+
+import (
+	"xorm.io/xorm"
+)
+
+func CreateSemVerTable(x *xorm.Engine) error {
+	type ForgejoSemVer struct {
+		Version string
+	}
+
+	return x.Sync(new(ForgejoSemVer))
+}
diff --git a/models/forgejo_migrations/v1_20/v3.go b/models/forgejo_migrations/v1_20/v3.go
new file mode 100644
index 0000000..caa4f1a
--- /dev/null
+++ b/models/forgejo_migrations/v1_20/v3.go
@@ -0,0 +1,26 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_v1_20 //nolint:revive
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+type AuthorizationToken struct {
+	ID              int64  `xorm:"pk autoincr"`
+	UID             int64  `xorm:"INDEX"`
+	LookupKey       string `xorm:"INDEX UNIQUE"`
+	HashedValidator string
+	Expiry          timeutil.TimeStamp
+}
+
+func (AuthorizationToken) TableName() string {
+	return "forgejo_auth_token"
+}
+
+func CreateAuthorizationTokenTable(x *xorm.Engine) error {
+	return x.Sync(new(AuthorizationToken))
+}
diff --git a/models/forgejo_migrations/v1_22/main_test.go b/models/forgejo_migrations/v1_22/main_test.go
new file mode 100644
index 0000000..0971108
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/forgejo_migrations/v1_22/v10.go b/models/forgejo_migrations/v1_22/v10.go
new file mode 100644
index 0000000..819800a
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v10.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddPronounsToUser(x *xorm.Engine) error {
+	type User struct {
+		ID       int64 `xorm:"pk autoincr"`
+		Pronouns string
+	}
+
+	return x.Sync(&User{})
+}
diff --git a/models/forgejo_migrations/v1_22/v11.go b/models/forgejo_migrations/v1_22/v11.go
new file mode 100644
index 0000000..c693993
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v11.go
@@ -0,0 +1,19 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddCreatedToIssue(x *xorm.Engine) error {
+	type Issue struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Created timeutil.TimeStampNano
+	}
+
+	return x.Sync(&Issue{})
+}
diff --git a/models/forgejo_migrations/v1_22/v12.go b/models/forgejo_migrations/v1_22/v12.go
new file mode 100644
index 0000000..6822524
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v12.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddRepoArchiveDownloadCount(x *xorm.Engine) error {
+	type RepoArchiveDownloadCount struct {
+		ID        int64 `xorm:"pk autoincr"`
+		RepoID    int64 `xorm:"index unique(s)"`
+		ReleaseID int64 `xorm:"index unique(s)"`
+		Type      int   `xorm:"unique(s)"`
+		Count     int64
+	}
+
+	return x.Sync(&RepoArchiveDownloadCount{})
+}
diff --git a/models/forgejo_migrations/v1_22/v4.go b/models/forgejo_migrations/v1_22/v4.go
new file mode 100644
index 0000000..f1195f5
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v4.go
@@ -0,0 +1,17 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddDefaultPermissionsToRepoUnit(x *xorm.Engine) error {
+	type RepoUnit struct {
+		ID                 int64
+		DefaultPermissions int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(&RepoUnit{})
+}
diff --git a/models/forgejo_migrations/v1_22/v5.go b/models/forgejo_migrations/v1_22/v5.go
new file mode 100644
index 0000000..55f9fe1
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v5.go
@@ -0,0 +1,22 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+type RepoFlag struct {
+	ID     int64  `xorm:"pk autoincr"`
+	RepoID int64  `xorm:"UNIQUE(s) INDEX"`
+	Name   string `xorm:"UNIQUE(s) INDEX"`
+}
+
+func (RepoFlag) TableName() string {
+	return "forgejo_repo_flag"
+}
+
+func CreateRepoFlagTable(x *xorm.Engine) error {
+	return x.Sync(new(RepoFlag))
+}
diff --git a/models/forgejo_migrations/v1_22/v6.go b/models/forgejo_migrations/v1_22/v6.go
new file mode 100644
index 0000000..1a48748
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v6.go
@@ -0,0 +1,24 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddWikiBranchToRepository(x *xorm.Engine) error {
+	type Repository struct {
+		ID         int64 `xorm:"pk autoincr"`
+		WikiBranch string
+	}
+
+	if err := x.Sync(&Repository{}); err != nil {
+		return err
+	}
+
+	// Update existing repositories to use `master` as the wiki branch, for
+	// compatilibty's sake.
+	_, err := x.Exec("UPDATE repository SET wiki_branch = 'master' WHERE wiki_branch = '' OR wiki_branch IS NULL")
+	return err
+}
diff --git a/models/forgejo_migrations/v1_22/v7.go b/models/forgejo_migrations/v1_22/v7.go
new file mode 100644
index 0000000..b42dd1a
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v7.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddUserRepoUnitHintsSetting(x *xorm.Engine) error {
+	type User struct {
+		ID                  int64 `xorm:"pk autoincr"`
+		EnableRepoUnitHints bool  `xorm:"NOT NULL DEFAULT true"`
+	}
+
+	return x.Sync(&User{})
+}
diff --git a/models/forgejo_migrations/v1_22/v8.go b/models/forgejo_migrations/v1_22/v8.go
new file mode 100644
index 0000000..2d3c0c5
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v8.go
@@ -0,0 +1,51 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"strings"
+
+	"xorm.io/xorm"
+)
+
+func RemoveSSHSignaturesFromReleaseNotes(x *xorm.Engine) error {
+	type Release struct {
+		ID   int64  `xorm:"pk autoincr"`
+		Note string `xorm:"TEXT"`
+	}
+
+	if err := x.Sync(&Release{}); err != nil {
+		return err
+	}
+
+	var releaseNotes []struct {
+		ID   int64
+		Note string
+	}
+
+	if err := x.Table("release").Where("note LIKE '%-----BEGIN SSH SIGNATURE-----%'").Find(&releaseNotes); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	for _, release := range releaseNotes {
+		idx := strings.LastIndex(release.Note, "-----BEGIN SSH SIGNATURE-----")
+		if idx == -1 {
+			continue
+		}
+		release.Note = release.Note[:idx]
+		_, err := sess.Exec("UPDATE `release` SET note = ? WHERE id = ?", release.Note, release.ID)
+		if err != nil {
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/forgejo_migrations/v1_22/v8_test.go b/models/forgejo_migrations/v1_22/v8_test.go
new file mode 100644
index 0000000..128fd08
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v8_test.go
@@ -0,0 +1,35 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_RemoveSSHSignaturesFromReleaseNotes(t *testing.T) {
+	// A reduced mock of the `repo_model.Release` struct.
+	type Release struct {
+		ID   int64  `xorm:"pk autoincr"`
+		Note string `xorm:"TEXT"`
+	}
+
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(Release))
+	defer deferable()
+
+	require.NoError(t, RemoveSSHSignaturesFromReleaseNotes(x))
+
+	var releases []Release
+	err := x.Table("release").OrderBy("id ASC").Find(&releases)
+	require.NoError(t, err)
+	assert.Len(t, releases, 3)
+
+	assert.Equal(t, "", releases[0].Note)
+	assert.Equal(t, "A message.\n", releases[1].Note)
+	assert.Equal(t, "no signature present here", releases[2].Note)
+}
diff --git a/models/forgejo_migrations/v1_22/v9.go b/models/forgejo_migrations/v1_22/v9.go
new file mode 100644
index 0000000..34c2844
--- /dev/null
+++ b/models/forgejo_migrations/v1_22/v9.go
@@ -0,0 +1,15 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddApplyToAdminsSetting(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		ID            int64 `xorm:"pk autoincr"`
+		ApplyToAdmins bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(&ProtectedBranch{})
+}
diff --git a/models/forgejo_migrations/v20.go b/models/forgejo_migrations/v20.go
new file mode 100644
index 0000000..8ca9e91
--- /dev/null
+++ b/models/forgejo_migrations/v20.go
@@ -0,0 +1,52 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+type (
+	QuotaLimitSubject  int
+	QuotaLimitSubjects []QuotaLimitSubject
+
+	QuotaKind int
+)
+
+type QuotaRule struct {
+	Name     string `xorm:"pk not null"`
+	Limit    int64  `xorm:"NOT NULL"`
+	Subjects QuotaLimitSubjects
+}
+
+type QuotaGroup struct {
+	Name string `xorm:"pk NOT NULL"`
+}
+
+type QuotaGroupRuleMapping struct {
+	ID        int64  `xorm:"pk autoincr"`
+	GroupName string `xorm:"index unique(qgrm_gr) not null"`
+	RuleName  string `xorm:"unique(qgrm_gr) not null"`
+}
+
+type QuotaGroupMapping struct {
+	ID        int64     `xorm:"pk autoincr"`
+	Kind      QuotaKind `xorm:"unique(qgm_kmg) not null"`
+	MappedID  int64     `xorm:"unique(qgm_kmg) not null"`
+	GroupName string    `xorm:"index unique(qgm_kmg) not null"`
+}
+
+func CreateQuotaTables(x *xorm.Engine) error {
+	if err := x.Sync(new(QuotaRule)); err != nil {
+		return err
+	}
+
+	if err := x.Sync(new(QuotaGroup)); err != nil {
+		return err
+	}
+
+	if err := x.Sync(new(QuotaGroupRuleMapping)); err != nil {
+		return err
+	}
+
+	return x.Sync(new(QuotaGroupMapping))
+}
diff --git a/models/forgejo_migrations/v21.go b/models/forgejo_migrations/v21.go
new file mode 100644
index 0000000..53f141b
--- /dev/null
+++ b/models/forgejo_migrations/v21.go
@@ -0,0 +1,16 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddSSHKeypairToPushMirror(x *xorm.Engine) error {
+	type PushMirror struct {
+		ID         int64  `xorm:"pk autoincr"`
+		PublicKey  string `xorm:"VARCHAR(100)"`
+		PrivateKey []byte `xorm:"BLOB"`
+	}
+
+	return x.Sync(&PushMirror{})
+}
diff --git a/models/forgejo_migrations/v22.go b/models/forgejo_migrations/v22.go
new file mode 100644
index 0000000..eeb7387
--- /dev/null
+++ b/models/forgejo_migrations/v22.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package forgejo_migrations //nolint:revive
+
+import "xorm.io/xorm"
+
+func AddLegacyToWebAuthnCredential(x *xorm.Engine) error {
+	type WebauthnCredential struct {
+		ID             int64 `xorm:"pk autoincr"`
+		BackupEligible bool  `xorm:"NOT NULL DEFAULT false"`
+		BackupState    bool  `xorm:"NOT NULL DEFAULT false"`
+		Legacy         bool  `xorm:"NOT NULL DEFAULT true"`
+	}
+
+	return x.Sync(&WebauthnCredential{})
+}
diff --git a/models/git/TestIterateRepositoryIDsWithLFSMetaObjects/lfs_meta_object.yaml b/models/git/TestIterateRepositoryIDsWithLFSMetaObjects/lfs_meta_object.yaml
new file mode 100644
index 0000000..fdfa66a
--- /dev/null
+++ b/models/git/TestIterateRepositoryIDsWithLFSMetaObjects/lfs_meta_object.yaml
@@ -0,0 +1,7 @@
+-
+
+  id: 1000
+  oid: 9d172e5c64b4f0024b9901ec6afe9ea052f3c9b6ff9f4b07956d8c48c86fca82
+  size: 25
+  repository_id: 1
+  created_unix: 1712309123
diff --git a/models/git/branch.go b/models/git/branch.go
new file mode 100644
index 0000000..f004d50
--- /dev/null
+++ b/models/git/branch.go
@@ -0,0 +1,434 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrBranchNotExist represents an error that branch with such name does not exist.
+type ErrBranchNotExist struct {
+	RepoID     int64
+	BranchName string
+}
+
+// IsErrBranchNotExist checks if an error is an ErrBranchDoesNotExist.
+func IsErrBranchNotExist(err error) bool {
+	_, ok := err.(ErrBranchNotExist)
+	return ok
+}
+
+func (err ErrBranchNotExist) Error() string {
+	return fmt.Sprintf("branch does not exist [repo_id: %d name: %s]", err.RepoID, err.BranchName)
+}
+
+func (err ErrBranchNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrBranchAlreadyExists represents an error that branch with such name already exists.
+type ErrBranchAlreadyExists struct {
+	BranchName string
+}
+
+// IsErrBranchAlreadyExists checks if an error is an ErrBranchAlreadyExists.
+func IsErrBranchAlreadyExists(err error) bool {
+	_, ok := err.(ErrBranchAlreadyExists)
+	return ok
+}
+
+func (err ErrBranchAlreadyExists) Error() string {
+	return fmt.Sprintf("branch already exists [name: %s]", err.BranchName)
+}
+
+func (err ErrBranchAlreadyExists) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrBranchNameConflict represents an error that branch name conflicts with other branch.
+type ErrBranchNameConflict struct {
+	BranchName string
+}
+
+// IsErrBranchNameConflict checks if an error is an ErrBranchNameConflict.
+func IsErrBranchNameConflict(err error) bool {
+	_, ok := err.(ErrBranchNameConflict)
+	return ok
+}
+
+func (err ErrBranchNameConflict) Error() string {
+	return fmt.Sprintf("branch conflicts with existing branch [name: %s]", err.BranchName)
+}
+
+func (err ErrBranchNameConflict) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrBranchesEqual represents an error that base branch is equal to the head branch.
+type ErrBranchesEqual struct {
+	BaseBranchName string
+	HeadBranchName string
+}
+
+// IsErrBranchesEqual checks if an error is an ErrBranchesEqual.
+func IsErrBranchesEqual(err error) bool {
+	_, ok := err.(ErrBranchesEqual)
+	return ok
+}
+
+func (err ErrBranchesEqual) Error() string {
+	return fmt.Sprintf("branches are equal [head: %sm base: %s]", err.HeadBranchName, err.BaseBranchName)
+}
+
+func (err ErrBranchesEqual) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// Branch represents a branch of a repository
+// For those repository who have many branches, stored into database is a good choice
+// for pagination, keyword search and filtering
+type Branch struct {
+	ID            int64
+	RepoID        int64  `xorm:"UNIQUE(s)"`
+	Name          string `xorm:"UNIQUE(s) NOT NULL"` // git's ref-name is case-sensitive internally, however, in some databases (mysql, by default), it's case-insensitive at the moment
+	CommitID      string
+	CommitMessage string `xorm:"TEXT"` // it only stores the message summary (the first line)
+	PusherID      int64
+	Pusher        *user_model.User `xorm:"-"`
+	IsDeleted     bool             `xorm:"index"`
+	DeletedByID   int64
+	DeletedBy     *user_model.User   `xorm:"-"`
+	DeletedUnix   timeutil.TimeStamp `xorm:"index"`
+	CommitTime    timeutil.TimeStamp // The commit
+	CreatedUnix   timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix   timeutil.TimeStamp `xorm:"updated"`
+}
+
+func (b *Branch) LoadDeletedBy(ctx context.Context) (err error) {
+	if b.DeletedBy == nil {
+		b.DeletedBy, err = user_model.GetUserByID(ctx, b.DeletedByID)
+		if user_model.IsErrUserNotExist(err) {
+			b.DeletedBy = user_model.NewGhostUser()
+			err = nil
+		}
+	}
+	return err
+}
+
+func (b *Branch) GetRepo(ctx context.Context) (*repo_model.Repository, error) {
+	return repo_model.GetRepositoryByID(ctx, b.RepoID)
+}
+
+func (b *Branch) LoadPusher(ctx context.Context) (err error) {
+	if b.Pusher == nil && b.PusherID > 0 {
+		b.Pusher, err = user_model.GetUserByID(ctx, b.PusherID)
+		if user_model.IsErrUserNotExist(err) {
+			b.Pusher = user_model.NewGhostUser()
+			err = nil
+		}
+	}
+	return err
+}
+
+func init() {
+	db.RegisterModel(new(Branch))
+	db.RegisterModel(new(RenamedBranch))
+}
+
+func GetBranch(ctx context.Context, repoID int64, branchName string) (*Branch, error) {
+	var branch Branch
+	has, err := db.GetEngine(ctx).Where("repo_id=?", repoID).And("name=?", branchName).Get(&branch)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrBranchNotExist{
+			RepoID:     repoID,
+			BranchName: branchName,
+		}
+	}
+	return &branch, nil
+}
+
+func GetBranches(ctx context.Context, repoID int64, branchNames []string) ([]*Branch, error) {
+	branches := make([]*Branch, 0, len(branchNames))
+	return branches, db.GetEngine(ctx).Where("repo_id=?", repoID).In("name", branchNames).Find(&branches)
+}
+
+func AddBranches(ctx context.Context, branches []*Branch) error {
+	for _, branch := range branches {
+		if _, err := db.GetEngine(ctx).Insert(branch); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func GetDeletedBranchByID(ctx context.Context, repoID, branchID int64) (*Branch, error) {
+	var branch Branch
+	has, err := db.GetEngine(ctx).ID(branchID).Get(&branch)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrBranchNotExist{
+			RepoID: repoID,
+		}
+	}
+	if branch.RepoID != repoID {
+		return nil, ErrBranchNotExist{
+			RepoID: repoID,
+		}
+	}
+	if !branch.IsDeleted {
+		return nil, ErrBranchNotExist{
+			RepoID: repoID,
+		}
+	}
+	return &branch, nil
+}
+
+func DeleteBranches(ctx context.Context, repoID, doerID int64, branchIDs []int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		branches := make([]*Branch, 0, len(branchIDs))
+		if err := db.GetEngine(ctx).In("id", branchIDs).Find(&branches); err != nil {
+			return err
+		}
+		for _, branch := range branches {
+			if err := AddDeletedBranch(ctx, repoID, branch.Name, doerID); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+// UpdateBranch updates the branch information in the database.
+func UpdateBranch(ctx context.Context, repoID, pusherID int64, branchName string, commit *git.Commit) (int64, error) {
+	return db.GetEngine(ctx).Where("repo_id=? AND name=?", repoID, branchName).
+		Cols("commit_id, commit_message, pusher_id, commit_time, is_deleted, updated_unix").
+		Update(&Branch{
+			CommitID:      commit.ID.String(),
+			CommitMessage: commit.Summary(),
+			PusherID:      pusherID,
+			CommitTime:    timeutil.TimeStamp(commit.Committer.When.Unix()),
+			IsDeleted:     false,
+		})
+}
+
+// AddDeletedBranch adds a deleted branch to the database
+func AddDeletedBranch(ctx context.Context, repoID int64, branchName string, deletedByID int64) error {
+	branch, err := GetBranch(ctx, repoID, branchName)
+	if err != nil {
+		return err
+	}
+	if branch.IsDeleted {
+		return nil
+	}
+
+	cnt, err := db.GetEngine(ctx).Where("repo_id=? AND name=? AND is_deleted=?", repoID, branchName, false).
+		Cols("is_deleted, deleted_by_id, deleted_unix").
+		Update(&Branch{
+			IsDeleted:   true,
+			DeletedByID: deletedByID,
+			DeletedUnix: timeutil.TimeStampNow(),
+		})
+	if err != nil {
+		return err
+	}
+	if cnt == 0 {
+		return fmt.Errorf("branch %s not found or has been deleted", branchName)
+	}
+	return err
+}
+
+func RemoveDeletedBranchByID(ctx context.Context, repoID, branchID int64) error {
+	_, err := db.GetEngine(ctx).Where("repo_id=? AND id=? AND is_deleted = ?", repoID, branchID, true).Delete(new(Branch))
+	return err
+}
+
+// RemoveOldDeletedBranches removes old deleted branches
+func RemoveOldDeletedBranches(ctx context.Context, olderThan time.Duration) {
+	// Nothing to do for shutdown or terminate
+	log.Trace("Doing: DeletedBranchesCleanup")
+
+	deleteBefore := time.Now().Add(-olderThan)
+	_, err := db.GetEngine(ctx).Where("is_deleted=? AND deleted_unix < ?", true, deleteBefore.Unix()).Delete(new(Branch))
+	if err != nil {
+		log.Error("DeletedBranchesCleanup: %v", err)
+	}
+}
+
+// RenamedBranch provide renamed branch log
+// will check it when a branch can't be found
+type RenamedBranch struct {
+	ID          int64 `xorm:"pk autoincr"`
+	RepoID      int64 `xorm:"INDEX NOT NULL"`
+	From        string
+	To          string
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+// FindRenamedBranch check if a branch was renamed
+func FindRenamedBranch(ctx context.Context, repoID int64, from string) (branch *RenamedBranch, exist bool, err error) {
+	branch = &RenamedBranch{
+		RepoID: repoID,
+		From:   from,
+	}
+	exist, err = db.GetEngine(ctx).Get(branch)
+
+	return branch, exist, err
+}
+
+// RenameBranch rename a branch
+func RenameBranch(ctx context.Context, repo *repo_model.Repository, from, to string, gitAction func(ctx context.Context, isDefault bool) error) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	sess := db.GetEngine(ctx)
+
+	// check whether from branch exist
+	var branch Branch
+	exist, err := db.GetEngine(ctx).Where("repo_id=? AND name=?", repo.ID, from).Get(&branch)
+	if err != nil {
+		return err
+	} else if !exist || branch.IsDeleted {
+		return ErrBranchNotExist{
+			RepoID:     repo.ID,
+			BranchName: from,
+		}
+	}
+
+	// check whether to branch exist or is_deleted
+	var dstBranch Branch
+	exist, err = db.GetEngine(ctx).Where("repo_id=? AND name=?", repo.ID, to).Get(&dstBranch)
+	if err != nil {
+		return err
+	}
+	if exist {
+		if !dstBranch.IsDeleted {
+			return ErrBranchAlreadyExists{
+				BranchName: to,
+			}
+		}
+
+		if _, err := db.GetEngine(ctx).ID(dstBranch.ID).NoAutoCondition().Delete(&dstBranch); err != nil {
+			return err
+		}
+	}
+
+	// 1. update branch in database
+	if n, err := sess.Where("repo_id=? AND name=?", repo.ID, from).Update(&Branch{
+		Name: to,
+	}); err != nil {
+		return err
+	} else if n <= 0 {
+		return ErrBranchNotExist{
+			RepoID:     repo.ID,
+			BranchName: from,
+		}
+	}
+
+	// 2. update default branch if needed
+	isDefault := repo.DefaultBranch == from
+	if isDefault {
+		repo.DefaultBranch = to
+		_, err = sess.ID(repo.ID).Cols("default_branch").Update(repo)
+		if err != nil {
+			return err
+		}
+	}
+
+	// 3. Update protected branch if needed
+	protectedBranch, err := GetProtectedBranchRuleByName(ctx, repo.ID, from)
+	if err != nil {
+		return err
+	}
+
+	if protectedBranch != nil {
+		// there is a protect rule for this branch
+		protectedBranch.RuleName = to
+		_, err = sess.ID(protectedBranch.ID).Cols("branch_name").Update(protectedBranch)
+		if err != nil {
+			return err
+		}
+	} else {
+		// some glob protect rules may match this branch
+		protected, err := IsBranchProtected(ctx, repo.ID, from)
+		if err != nil {
+			return err
+		}
+		if protected {
+			return ErrBranchIsProtected
+		}
+	}
+
+	// 4. Update all not merged pull request base branch name
+	_, err = sess.Table("pull_request").Where("base_repo_id=? AND base_branch=? AND has_merged=?",
+		repo.ID, from, false).
+		Update(map[string]any{"base_branch": to})
+	if err != nil {
+		return err
+	}
+
+	// 4.1 Update all not merged pull request head branch name
+	if _, err = sess.Table("pull_request").Where("head_repo_id=? AND head_branch=? AND has_merged=?",
+		repo.ID, from, false).
+		Update(map[string]any{"head_branch": to}); err != nil {
+		return err
+	}
+
+	// 5. insert renamed branch record
+	renamedBranch := &RenamedBranch{
+		RepoID: repo.ID,
+		From:   from,
+		To:     to,
+	}
+	err = db.Insert(ctx, renamedBranch)
+	if err != nil {
+		return err
+	}
+
+	// 6. do git action
+	if err = gitAction(ctx, isDefault); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// FindRecentlyPushedNewBranches return at most 2 new branches pushed by the user in 6 hours which has no opened PRs created
+// except the indicate branch
+func FindRecentlyPushedNewBranches(ctx context.Context, repoID, userID int64, excludeBranchName string) (BranchList, error) {
+	branches := make(BranchList, 0, 2)
+	subQuery := builder.Select("head_branch").From("pull_request").
+		InnerJoin("issue", "issue.id = pull_request.issue_id").
+		Where(builder.Eq{
+			"pull_request.head_repo_id": repoID,
+			"issue.is_closed":           false,
+		})
+	err := db.GetEngine(ctx).
+		Where("pusher_id=? AND is_deleted=?", userID, false).
+		And("name <> ?", excludeBranchName).
+		And("repo_id = ?", repoID).
+		And("commit_time >= ?", time.Now().Add(-time.Hour*6).Unix()).
+		NotIn("name", subQuery).
+		OrderBy("branch.commit_time DESC").
+		Limit(2).
+		Find(&branches)
+	return branches, err
+}
diff --git a/models/git/branch_list.go b/models/git/branch_list.go
new file mode 100644
index 0000000..81a43ea
--- /dev/null
+++ b/models/git/branch_list.go
@@ -0,0 +1,132 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+
+	"xorm.io/builder"
+)
+
+type BranchList []*Branch
+
+func (branches BranchList) LoadDeletedBy(ctx context.Context) error {
+	ids := container.FilterSlice(branches, func(branch *Branch) (int64, bool) {
+		return branch.DeletedByID, branch.IsDeleted
+	})
+
+	usersMap := make(map[int64]*user_model.User, len(ids))
+	if err := db.GetEngine(ctx).In("id", ids).Find(&usersMap); err != nil {
+		return err
+	}
+	for _, branch := range branches {
+		if !branch.IsDeleted {
+			continue
+		}
+		branch.DeletedBy = usersMap[branch.DeletedByID]
+		if branch.DeletedBy == nil {
+			branch.DeletedBy = user_model.NewGhostUser()
+		}
+	}
+	return nil
+}
+
+func (branches BranchList) LoadPusher(ctx context.Context) error {
+	ids := container.FilterSlice(branches, func(branch *Branch) (int64, bool) {
+		// pusher_id maybe zero because some branches are sync by backend with no pusher
+		return branch.PusherID, branch.PusherID > 0
+	})
+
+	usersMap := make(map[int64]*user_model.User, len(ids))
+	if err := db.GetEngine(ctx).In("id", ids).Find(&usersMap); err != nil {
+		return err
+	}
+	for _, branch := range branches {
+		if branch.PusherID <= 0 {
+			continue
+		}
+		branch.Pusher = usersMap[branch.PusherID]
+		if branch.Pusher == nil {
+			branch.Pusher = user_model.NewGhostUser()
+		}
+	}
+	return nil
+}
+
+type FindBranchOptions struct {
+	db.ListOptions
+	RepoID             int64
+	ExcludeBranchNames []string
+	IsDeletedBranch    optional.Option[bool]
+	OrderBy            string
+	Keyword            string
+}
+
+func (opts FindBranchOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+
+	if len(opts.ExcludeBranchNames) > 0 {
+		cond = cond.And(builder.NotIn("name", opts.ExcludeBranchNames))
+	}
+	if opts.IsDeletedBranch.Has() {
+		cond = cond.And(builder.Eq{"is_deleted": opts.IsDeletedBranch.Value()})
+	}
+	if opts.Keyword != "" {
+		cond = cond.And(builder.Like{"name", opts.Keyword})
+	}
+	return cond
+}
+
+func (opts FindBranchOptions) ToOrders() string {
+	orderBy := opts.OrderBy
+	if orderBy == "" {
+		// the commit_time might be the same, so add the "name" to make sure the order is stable
+		orderBy = "commit_time DESC, name ASC"
+	}
+	if opts.IsDeletedBranch.ValueOrDefault(true) { // if deleted branch included, put them at the beginning
+		orderBy = "is_deleted ASC, " + orderBy
+	}
+	return orderBy
+}
+
+func FindBranchNames(ctx context.Context, opts FindBranchOptions) ([]string, error) {
+	sess := db.GetEngine(ctx).Select("name").Where(opts.ToConds())
+	if opts.PageSize > 0 && !opts.IsListAll() {
+		sess = db.SetSessionPagination(sess, &opts.ListOptions)
+	}
+
+	var branches []string
+	if err := sess.Table("branch").OrderBy(opts.ToOrders()).Find(&branches); err != nil {
+		return nil, err
+	}
+	return branches, nil
+}
+
+func FindBranchesByRepoAndBranchName(ctx context.Context, repoBranches map[int64]string) (map[int64]string, error) {
+	if len(repoBranches) == 0 {
+		return nil, nil
+	}
+	cond := builder.NewCond()
+	for repoID, branchName := range repoBranches {
+		cond = cond.Or(builder.And(builder.Eq{"repo_id": repoID}, builder.Eq{"name": branchName}))
+	}
+	var branches []*Branch
+	if err := db.GetEngine(ctx).
+		Where(cond).Find(&branches); err != nil {
+		return nil, err
+	}
+	branchMap := make(map[int64]string, len(branches))
+	for _, branch := range branches {
+		branchMap[branch.RepoID] = branch.CommitID
+	}
+	return branchMap, nil
+}
diff --git a/models/git/branch_test.go b/models/git/branch_test.go
new file mode 100644
index 0000000..81839eb
--- /dev/null
+++ b/models/git/branch_test.go
@@ -0,0 +1,195 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git_test
+
+import (
+	"context"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/optional"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAddDeletedBranch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	assert.EqualValues(t, git.Sha1ObjectFormat.Name(), repo.ObjectFormatName)
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 1})
+
+	assert.True(t, firstBranch.IsDeleted)
+	require.NoError(t, git_model.AddDeletedBranch(db.DefaultContext, repo.ID, firstBranch.Name, firstBranch.DeletedByID))
+	require.NoError(t, git_model.AddDeletedBranch(db.DefaultContext, repo.ID, "branch2", int64(1)))
+
+	secondBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{RepoID: repo.ID, Name: "branch2"})
+	assert.True(t, secondBranch.IsDeleted)
+
+	commit := &git.Commit{
+		ID:            git.MustIDFromString(secondBranch.CommitID),
+		CommitMessage: secondBranch.CommitMessage,
+		Committer: &git.Signature{
+			When: secondBranch.CommitTime.AsLocalTime(),
+		},
+	}
+
+	_, err := git_model.UpdateBranch(db.DefaultContext, repo.ID, secondBranch.PusherID, secondBranch.Name, commit)
+	require.NoError(t, err)
+}
+
+func TestGetDeletedBranches(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	branches, err := db.Find[git_model.Branch](db.DefaultContext, git_model.FindBranchOptions{
+		ListOptions:     db.ListOptionsAll,
+		RepoID:          repo.ID,
+		IsDeletedBranch: optional.Some(true),
+	})
+	require.NoError(t, err)
+	assert.Len(t, branches, 2)
+}
+
+func TestGetDeletedBranch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 1})
+
+	assert.NotNil(t, getDeletedBranch(t, firstBranch))
+}
+
+func TestDeletedBranchLoadUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 1})
+	secondBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 2})
+
+	branch := getDeletedBranch(t, firstBranch)
+	assert.Nil(t, branch.DeletedBy)
+	branch.LoadDeletedBy(db.DefaultContext)
+	assert.NotNil(t, branch.DeletedBy)
+	assert.Equal(t, "user1", branch.DeletedBy.Name)
+
+	branch = getDeletedBranch(t, secondBranch)
+	assert.Nil(t, branch.DeletedBy)
+	branch.LoadDeletedBy(db.DefaultContext)
+	assert.NotNil(t, branch.DeletedBy)
+	assert.Equal(t, "Ghost", branch.DeletedBy.Name)
+}
+
+func TestRemoveDeletedBranch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	firstBranch := unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 1})
+
+	err := git_model.RemoveDeletedBranchByID(db.DefaultContext, repo.ID, 1)
+	require.NoError(t, err)
+	unittest.AssertNotExistsBean(t, firstBranch)
+	unittest.AssertExistsAndLoadBean(t, &git_model.Branch{ID: 2})
+}
+
+func getDeletedBranch(t *testing.T, branch *git_model.Branch) *git_model.Branch {
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	deletedBranch, err := git_model.GetDeletedBranchByID(db.DefaultContext, repo.ID, branch.ID)
+	require.NoError(t, err)
+	assert.Equal(t, branch.ID, deletedBranch.ID)
+	assert.Equal(t, branch.Name, deletedBranch.Name)
+	assert.Equal(t, branch.CommitID, deletedBranch.CommitID)
+	assert.Equal(t, branch.DeletedByID, deletedBranch.DeletedByID)
+
+	return deletedBranch
+}
+
+func TestFindRenamedBranch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	branch, exist, err := git_model.FindRenamedBranch(db.DefaultContext, 1, "dev")
+	require.NoError(t, err)
+	assert.True(t, exist)
+	assert.Equal(t, "master", branch.To)
+
+	_, exist, err = git_model.FindRenamedBranch(db.DefaultContext, 1, "unknow")
+	require.NoError(t, err)
+	assert.False(t, exist)
+}
+
+func TestRenameBranch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	_isDefault := false
+
+	ctx, committer, err := db.TxContext(db.DefaultContext)
+	defer committer.Close()
+	require.NoError(t, err)
+	require.NoError(t, git_model.UpdateProtectBranch(ctx, repo1, &git_model.ProtectedBranch{
+		RepoID:   repo1.ID,
+		RuleName: "master",
+	}, git_model.WhitelistOptions{}))
+	require.NoError(t, committer.Commit())
+
+	require.NoError(t, git_model.RenameBranch(db.DefaultContext, repo1, "master", "main", func(ctx context.Context, isDefault bool) error {
+		_isDefault = isDefault
+		return nil
+	}))
+
+	assert.True(t, _isDefault)
+	repo1 = unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	assert.Equal(t, "main", repo1.DefaultBranch)
+
+	pull := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1}) // merged
+	assert.Equal(t, "master", pull.BaseBranch)
+
+	pull = unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2}) // open
+	assert.Equal(t, "main", pull.BaseBranch)
+
+	renamedBranch := unittest.AssertExistsAndLoadBean(t, &git_model.RenamedBranch{ID: 2})
+	assert.Equal(t, "master", renamedBranch.From)
+	assert.Equal(t, "main", renamedBranch.To)
+	assert.Equal(t, int64(1), renamedBranch.RepoID)
+
+	unittest.AssertExistsAndLoadBean(t, &git_model.ProtectedBranch{
+		RepoID:   repo1.ID,
+		RuleName: "main",
+	})
+}
+
+func TestOnlyGetDeletedBranchOnCorrectRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Get deletedBranch with ID of 1 on repo with ID 2.
+	// This should return a nil branch as this deleted branch
+	// is actually on repo with ID 1.
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+
+	deletedBranch, err := git_model.GetDeletedBranchByID(db.DefaultContext, repo2.ID, 1)
+
+	// Expect error, and the returned branch is nil.
+	require.Error(t, err)
+	assert.Nil(t, deletedBranch)
+
+	// Now get the deletedBranch with ID of 1 on repo with ID 1.
+	// This should return the deletedBranch.
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	deletedBranch, err = git_model.GetDeletedBranchByID(db.DefaultContext, repo1.ID, 1)
+
+	// Expect no error, and the returned branch to be not nil.
+	require.NoError(t, err)
+	assert.NotNil(t, deletedBranch)
+}
+
+func TestFindBranchesByRepoAndBranchName(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// With no repos or branches given, we find no branches.
+	branches, err := git_model.FindBranchesByRepoAndBranchName(db.DefaultContext, map[int64]string{})
+	require.NoError(t, err)
+	assert.Empty(t, branches)
+}
diff --git a/models/git/commit_status.go b/models/git/commit_status.go
new file mode 100644
index 0000000..53d1ddc
--- /dev/null
+++ b/models/git/commit_status.go
@@ -0,0 +1,519 @@
+// Copyright 2017 Gitea. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"crypto/sha1"
+	"errors"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	asymkey_model "code.gitea.io/gitea/models/asymkey"
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/translation"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// CommitStatus holds a single Status of a single Commit
+type CommitStatus struct {
+	ID          int64                  `xorm:"pk autoincr"`
+	Index       int64                  `xorm:"INDEX UNIQUE(repo_sha_index)"`
+	RepoID      int64                  `xorm:"INDEX UNIQUE(repo_sha_index)"`
+	Repo        *repo_model.Repository `xorm:"-"`
+	State       api.CommitStatusState  `xorm:"VARCHAR(7) NOT NULL"`
+	SHA         string                 `xorm:"VARCHAR(64) NOT NULL INDEX UNIQUE(repo_sha_index)"`
+	TargetURL   string                 `xorm:"TEXT"`
+	Description string                 `xorm:"TEXT"`
+	ContextHash string                 `xorm:"VARCHAR(64) index"`
+	Context     string                 `xorm:"TEXT"`
+	Creator     *user_model.User       `xorm:"-"`
+	CreatorID   int64
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(CommitStatus))
+	db.RegisterModel(new(CommitStatusIndex))
+}
+
+func postgresGetCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
+	res, err := db.GetEngine(ctx).Query("INSERT INTO `commit_status_index` (repo_id, sha, max_index) "+
+		"VALUES (?,?,1) ON CONFLICT (repo_id, sha) DO UPDATE SET max_index = `commit_status_index`.max_index+1 RETURNING max_index",
+		repoID, sha)
+	if err != nil {
+		return 0, err
+	}
+	if len(res) == 0 {
+		return 0, db.ErrGetResourceIndexFailed
+	}
+	return strconv.ParseInt(string(res[0]["max_index"]), 10, 64)
+}
+
+func mysqlGetCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
+	if _, err := db.GetEngine(ctx).Exec("INSERT INTO `commit_status_index` (repo_id, sha, max_index) "+
+		"VALUES (?,?,1) ON DUPLICATE KEY UPDATE max_index = max_index+1",
+		repoID, sha); err != nil {
+		return 0, err
+	}
+
+	var idx int64
+	_, err := db.GetEngine(ctx).SQL("SELECT max_index FROM `commit_status_index` WHERE repo_id = ? AND sha = ?",
+		repoID, sha).Get(&idx)
+	if err != nil {
+		return 0, err
+	}
+	if idx == 0 {
+		return 0, errors.New("cannot get the correct index")
+	}
+	return idx, nil
+}
+
+// GetNextCommitStatusIndex retried 3 times to generate a resource index
+func GetNextCommitStatusIndex(ctx context.Context, repoID int64, sha string) (int64, error) {
+	_, err := git.NewIDFromString(sha)
+	if err != nil {
+		return 0, git.ErrInvalidSHA{SHA: sha}
+	}
+
+	switch {
+	case setting.Database.Type.IsPostgreSQL():
+		return postgresGetCommitStatusIndex(ctx, repoID, sha)
+	case setting.Database.Type.IsMySQL():
+		return mysqlGetCommitStatusIndex(ctx, repoID, sha)
+	}
+
+	e := db.GetEngine(ctx)
+
+	// try to update the max_index to next value, and acquire the write-lock for the record
+	res, err := e.Exec("UPDATE `commit_status_index` SET max_index=max_index+1 WHERE repo_id=? AND sha=?", repoID, sha)
+	if err != nil {
+		return 0, fmt.Errorf("update failed: %w", err)
+	}
+	affected, err := res.RowsAffected()
+	if err != nil {
+		return 0, err
+	}
+	if affected == 0 {
+		// this slow path is only for the first time of creating a resource index
+		_, errIns := e.Exec("INSERT INTO `commit_status_index` (repo_id, sha, max_index) VALUES (?, ?, 0)", repoID, sha)
+		res, err = e.Exec("UPDATE `commit_status_index` SET max_index=max_index+1 WHERE repo_id=? AND sha=?", repoID, sha)
+		if err != nil {
+			return 0, fmt.Errorf("update2 failed: %w", err)
+		}
+		affected, err = res.RowsAffected()
+		if err != nil {
+			return 0, fmt.Errorf("RowsAffected failed: %w", err)
+		}
+		// if the update still can not update any records, the record must not exist and there must be some errors (insert error)
+		if affected == 0 {
+			if errIns == nil {
+				return 0, errors.New("impossible error when GetNextCommitStatusIndex, insert and update both succeeded but no record is updated")
+			}
+			return 0, fmt.Errorf("insert failed: %w", errIns)
+		}
+	}
+
+	// now, the new index is in database (protected by the transaction and write-lock)
+	var newIdx int64
+	has, err := e.SQL("SELECT max_index FROM `commit_status_index` WHERE repo_id=? AND sha=?", repoID, sha).Get(&newIdx)
+	if err != nil {
+		return 0, fmt.Errorf("select failed: %w", err)
+	}
+	if !has {
+		return 0, errors.New("impossible error when GetNextCommitStatusIndex, upsert succeeded but no record can be selected")
+	}
+	return newIdx, nil
+}
+
+func (status *CommitStatus) loadRepository(ctx context.Context) (err error) {
+	if status.Repo == nil {
+		status.Repo, err = repo_model.GetRepositoryByID(ctx, status.RepoID)
+		if err != nil {
+			return fmt.Errorf("getRepositoryByID [%d]: %w", status.RepoID, err)
+		}
+	}
+	return nil
+}
+
+func (status *CommitStatus) loadCreator(ctx context.Context) (err error) {
+	if status.Creator == nil && status.CreatorID > 0 {
+		status.Creator, err = user_model.GetUserByID(ctx, status.CreatorID)
+		if err != nil {
+			return fmt.Errorf("getUserByID [%d]: %w", status.CreatorID, err)
+		}
+	}
+	return nil
+}
+
+func (status *CommitStatus) loadAttributes(ctx context.Context) (err error) {
+	if err := status.loadRepository(ctx); err != nil {
+		return err
+	}
+	return status.loadCreator(ctx)
+}
+
+// APIURL returns the absolute APIURL to this commit-status.
+func (status *CommitStatus) APIURL(ctx context.Context) string {
+	_ = status.loadAttributes(ctx)
+	return status.Repo.APIURL() + "/statuses/" + url.PathEscape(status.SHA)
+}
+
+// LocaleString returns the locale string name of the Status
+func (status *CommitStatus) LocaleString(lang translation.Locale) string {
+	return lang.TrString("repo.commitstatus." + status.State.String())
+}
+
+// HideActionsURL set `TargetURL` to an empty string if the status comes from Gitea Actions
+func (status *CommitStatus) HideActionsURL(ctx context.Context) {
+	if status.RepoID == 0 {
+		return
+	}
+
+	if status.Repo == nil {
+		if err := status.loadRepository(ctx); err != nil {
+			log.Error("loadRepository: %v", err)
+			return
+		}
+	}
+
+	prefix := fmt.Sprintf("%s/actions", status.Repo.Link())
+	if strings.HasPrefix(status.TargetURL, prefix) {
+		status.TargetURL = ""
+	}
+}
+
+// CalcCommitStatus returns commit status state via some status, the commit statues should order by id desc
+func CalcCommitStatus(statuses []*CommitStatus) *CommitStatus {
+	if len(statuses) == 0 {
+		return nil
+	}
+
+	latestWorstStatus := statuses[0]
+	for _, status := range statuses[1:] {
+		if status.State.NoBetterThan(latestWorstStatus.State) {
+			latestWorstStatus = status
+		}
+	}
+	return latestWorstStatus
+}
+
+// CommitStatusOptions holds the options for query commit statuses
+type CommitStatusOptions struct {
+	db.ListOptions
+	RepoID   int64
+	SHA      string
+	State    string
+	SortType string
+}
+
+func (opts *CommitStatusOptions) ToConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"repo_id": opts.RepoID,
+		"sha":     opts.SHA,
+	}
+
+	switch opts.State {
+	case "pending", "success", "error", "failure", "warning":
+		cond = cond.And(builder.Eq{
+			"state": opts.State,
+		})
+	}
+
+	return cond
+}
+
+func (opts *CommitStatusOptions) ToOrders() string {
+	switch opts.SortType {
+	case "oldest":
+		return "created_unix ASC"
+	case "recentupdate":
+		return "updated_unix DESC"
+	case "leastupdate":
+		return "updated_unix ASC"
+	case "leastindex":
+		return "`index` DESC"
+	case "highestindex":
+		return "`index` ASC"
+	default:
+		return "created_unix DESC"
+	}
+}
+
+// CommitStatusIndex represents a table for commit status index
+type CommitStatusIndex struct {
+	ID       int64
+	RepoID   int64  `xorm:"unique(repo_sha)"`
+	SHA      string `xorm:"unique(repo_sha)"`
+	MaxIndex int64  `xorm:"index"`
+}
+
+// GetLatestCommitStatus returns all statuses with a unique context for a given commit.
+func GetLatestCommitStatus(ctx context.Context, repoID int64, sha string, listOptions db.ListOptions) ([]*CommitStatus, int64, error) {
+	getBase := func() *xorm.Session {
+		return db.GetEngine(ctx).Table(&CommitStatus{}).
+			Where("repo_id = ?", repoID).And("sha = ?", sha)
+	}
+	indices := make([]int64, 0, 10)
+	sess := getBase().Select("max( `index` ) as `index`").
+		GroupBy("context_hash").OrderBy("max( `index` ) desc")
+	if !listOptions.IsListAll() {
+		sess = db.SetSessionPagination(sess, &listOptions)
+	}
+	count, err := sess.FindAndCount(&indices)
+	if err != nil {
+		return nil, count, err
+	}
+	statuses := make([]*CommitStatus, 0, len(indices))
+	if len(indices) == 0 {
+		return statuses, count, nil
+	}
+	return statuses, count, getBase().And(builder.In("`index`", indices)).Find(&statuses)
+}
+
+// GetLatestCommitStatusForPairs returns all statuses with a unique context for a given list of repo-sha pairs
+func GetLatestCommitStatusForPairs(ctx context.Context, repoSHAs []RepoSHA) (map[int64][]*CommitStatus, error) {
+	type result struct {
+		Index  int64
+		RepoID int64
+		SHA    string
+	}
+
+	results := make([]result, 0, len(repoSHAs))
+
+	getBase := func() *xorm.Session {
+		return db.GetEngine(ctx).Table(&CommitStatus{})
+	}
+
+	// Create a disjunction of conditions for each repoID and SHA pair
+	conds := make([]builder.Cond, 0, len(repoSHAs))
+	for _, repoSHA := range repoSHAs {
+		conds = append(conds, builder.Eq{"repo_id": repoSHA.RepoID, "sha": repoSHA.SHA})
+	}
+	sess := getBase().Where(builder.Or(conds...)).
+		Select("max( `index` ) as `index`, repo_id, sha").
+		GroupBy("context_hash, repo_id, sha").OrderBy("max( `index` ) desc")
+
+	err := sess.Find(&results)
+	if err != nil {
+		return nil, err
+	}
+
+	repoStatuses := make(map[int64][]*CommitStatus)
+
+	if len(results) > 0 {
+		statuses := make([]*CommitStatus, 0, len(results))
+
+		conds = make([]builder.Cond, 0, len(results))
+		for _, result := range results {
+			cond := builder.Eq{
+				"`index`": result.Index,
+				"repo_id": result.RepoID,
+				"sha":     result.SHA,
+			}
+			conds = append(conds, cond)
+		}
+		err = getBase().Where(builder.Or(conds...)).Find(&statuses)
+		if err != nil {
+			return nil, err
+		}
+
+		// Group the statuses by repo ID
+		for _, status := range statuses {
+			repoStatuses[status.RepoID] = append(repoStatuses[status.RepoID], status)
+		}
+	}
+
+	return repoStatuses, nil
+}
+
+// GetLatestCommitStatusForRepoCommitIDs returns all statuses with a unique context for a given list of repo-sha pairs
+func GetLatestCommitStatusForRepoCommitIDs(ctx context.Context, repoID int64, commitIDs []string) (map[string][]*CommitStatus, error) {
+	type result struct {
+		Index int64
+		SHA   string
+	}
+
+	getBase := func() *xorm.Session {
+		return db.GetEngine(ctx).Table(&CommitStatus{}).Where("repo_id = ?", repoID)
+	}
+	results := make([]result, 0, len(commitIDs))
+
+	conds := make([]builder.Cond, 0, len(commitIDs))
+	for _, sha := range commitIDs {
+		conds = append(conds, builder.Eq{"sha": sha})
+	}
+	sess := getBase().And(builder.Or(conds...)).
+		Select("max( `index` ) as `index`, sha").
+		GroupBy("context_hash, sha").OrderBy("max( `index` ) desc")
+
+	err := sess.Find(&results)
+	if err != nil {
+		return nil, err
+	}
+
+	repoStatuses := make(map[string][]*CommitStatus)
+
+	if len(results) > 0 {
+		statuses := make([]*CommitStatus, 0, len(results))
+
+		conds = make([]builder.Cond, 0, len(results))
+		for _, result := range results {
+			conds = append(conds, builder.Eq{"`index`": result.Index, "sha": result.SHA})
+		}
+		err = getBase().And(builder.Or(conds...)).Find(&statuses)
+		if err != nil {
+			return nil, err
+		}
+
+		// Group the statuses by commit
+		for _, status := range statuses {
+			repoStatuses[status.SHA] = append(repoStatuses[status.SHA], status)
+		}
+	}
+
+	return repoStatuses, nil
+}
+
+// FindRepoRecentCommitStatusContexts returns repository's recent commit status contexts
+func FindRepoRecentCommitStatusContexts(ctx context.Context, repoID int64, before time.Duration) ([]string, error) {
+	start := timeutil.TimeStampNow().AddDuration(-before)
+
+	var contexts []string
+	if err := db.GetEngine(ctx).Table("commit_status").
+		Where("repo_id = ?", repoID).And("updated_unix >= ?", start).
+		Cols("context").Distinct().Find(&contexts); err != nil {
+		return nil, err
+	}
+
+	return contexts, nil
+}
+
+// NewCommitStatusOptions holds options for creating a CommitStatus
+type NewCommitStatusOptions struct {
+	Repo         *repo_model.Repository
+	Creator      *user_model.User
+	SHA          git.ObjectID
+	CommitStatus *CommitStatus
+}
+
+// NewCommitStatus save commit statuses into database
+func NewCommitStatus(ctx context.Context, opts NewCommitStatusOptions) error {
+	if opts.Repo == nil {
+		return fmt.Errorf("NewCommitStatus[nil, %s]: no repository specified", opts.SHA)
+	}
+
+	repoPath := opts.Repo.RepoPath()
+	if opts.Creator == nil {
+		return fmt.Errorf("NewCommitStatus[%s, %s]: no user specified", repoPath, opts.SHA)
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return fmt.Errorf("NewCommitStatus[repo_id: %d, user_id: %d, sha: %s]: %w", opts.Repo.ID, opts.Creator.ID, opts.SHA, err)
+	}
+	defer committer.Close()
+
+	// Get the next Status Index
+	idx, err := GetNextCommitStatusIndex(ctx, opts.Repo.ID, opts.SHA.String())
+	if err != nil {
+		return fmt.Errorf("generate commit status index failed: %w", err)
+	}
+
+	opts.CommitStatus.Description = strings.TrimSpace(opts.CommitStatus.Description)
+	opts.CommitStatus.Context = strings.TrimSpace(opts.CommitStatus.Context)
+	opts.CommitStatus.TargetURL = strings.TrimSpace(opts.CommitStatus.TargetURL)
+	opts.CommitStatus.SHA = opts.SHA.String()
+	opts.CommitStatus.CreatorID = opts.Creator.ID
+	opts.CommitStatus.RepoID = opts.Repo.ID
+	opts.CommitStatus.Index = idx
+	log.Debug("NewCommitStatus[%s, %s]: %d", repoPath, opts.SHA, opts.CommitStatus.Index)
+
+	opts.CommitStatus.ContextHash = hashCommitStatusContext(opts.CommitStatus.Context)
+
+	// Insert new CommitStatus
+	if _, err = db.GetEngine(ctx).Insert(opts.CommitStatus); err != nil {
+		return fmt.Errorf("insert CommitStatus[%s, %s]: %w", repoPath, opts.SHA, err)
+	}
+
+	return committer.Commit()
+}
+
+// SignCommitWithStatuses represents a commit with validation of signature and status state.
+type SignCommitWithStatuses struct {
+	Status   *CommitStatus
+	Statuses []*CommitStatus
+	*asymkey_model.SignCommit
+}
+
+// ParseCommitsWithStatus checks commits latest statuses and calculates its worst status state
+func ParseCommitsWithStatus(ctx context.Context, oldCommits []*asymkey_model.SignCommit, repo *repo_model.Repository) []*SignCommitWithStatuses {
+	newCommits := make([]*SignCommitWithStatuses, 0, len(oldCommits))
+
+	for _, c := range oldCommits {
+		commit := &SignCommitWithStatuses{
+			SignCommit: c,
+		}
+		statuses, _, err := GetLatestCommitStatus(ctx, repo.ID, commit.ID.String(), db.ListOptions{})
+		if err != nil {
+			log.Error("GetLatestCommitStatus: %v", err)
+		} else {
+			commit.Statuses = statuses
+			commit.Status = CalcCommitStatus(statuses)
+		}
+
+		newCommits = append(newCommits, commit)
+	}
+	return newCommits
+}
+
+// hashCommitStatusContext hash context
+func hashCommitStatusContext(context string) string {
+	return fmt.Sprintf("%x", sha1.Sum([]byte(context)))
+}
+
+// ConvertFromGitCommit converts git commits into SignCommitWithStatuses
+func ConvertFromGitCommit(ctx context.Context, commits []*git.Commit, repo *repo_model.Repository) []*SignCommitWithStatuses {
+	return ParseCommitsWithStatus(ctx,
+		asymkey_model.ParseCommitsWithSignature(
+			ctx,
+			user_model.ValidateCommitsWithEmails(ctx, commits),
+			repo.GetTrustModel(),
+			func(user *user_model.User) (bool, error) {
+				return repo_model.IsOwnerMemberCollaborator(ctx, repo, user.ID)
+			},
+		),
+		repo,
+	)
+}
+
+// CommitStatusesHideActionsURL hide Gitea Actions urls
+func CommitStatusesHideActionsURL(ctx context.Context, statuses []*CommitStatus) {
+	idToRepos := make(map[int64]*repo_model.Repository)
+	for _, status := range statuses {
+		if status == nil {
+			continue
+		}
+
+		if status.Repo == nil {
+			status.Repo = idToRepos[status.RepoID]
+		}
+		status.HideActionsURL(ctx)
+		idToRepos[status.RepoID] = status.Repo
+	}
+}
diff --git a/models/git/commit_status_summary.go b/models/git/commit_status_summary.go
new file mode 100644
index 0000000..7603e7a
--- /dev/null
+++ b/models/git/commit_status_summary.go
@@ -0,0 +1,88 @@
+// Copyright 2024 Gitea. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+
+	"xorm.io/builder"
+)
+
+// CommitStatusSummary holds the latest commit Status of a single Commit
+type CommitStatusSummary struct {
+	ID        int64                 `xorm:"pk autoincr"`
+	RepoID    int64                 `xorm:"INDEX UNIQUE(repo_id_sha)"`
+	SHA       string                `xorm:"VARCHAR(64) NOT NULL INDEX UNIQUE(repo_id_sha)"`
+	State     api.CommitStatusState `xorm:"VARCHAR(7) NOT NULL"`
+	TargetURL string                `xorm:"TEXT"`
+}
+
+func init() {
+	db.RegisterModel(new(CommitStatusSummary))
+}
+
+type RepoSHA struct {
+	RepoID int64
+	SHA    string
+}
+
+func GetLatestCommitStatusForRepoAndSHAs(ctx context.Context, repoSHAs []RepoSHA) ([]*CommitStatus, error) {
+	cond := builder.NewCond()
+	for _, rs := range repoSHAs {
+		cond = cond.Or(builder.Eq{"repo_id": rs.RepoID, "sha": rs.SHA})
+	}
+
+	var summaries []CommitStatusSummary
+	if err := db.GetEngine(ctx).Where(cond).Find(&summaries); err != nil {
+		return nil, err
+	}
+
+	commitStatuses := make([]*CommitStatus, 0, len(repoSHAs))
+	for _, summary := range summaries {
+		commitStatuses = append(commitStatuses, &CommitStatus{
+			RepoID:    summary.RepoID,
+			SHA:       summary.SHA,
+			State:     summary.State,
+			TargetURL: summary.TargetURL,
+		})
+	}
+	return commitStatuses, nil
+}
+
+func UpdateCommitStatusSummary(ctx context.Context, repoID int64, sha string) error {
+	commitStatuses, _, err := GetLatestCommitStatus(ctx, repoID, sha, db.ListOptionsAll)
+	if err != nil {
+		return err
+	}
+	state := CalcCommitStatus(commitStatuses)
+	// mysql will return 0 when update a record which state hasn't been changed which behaviour is different from other database,
+	// so we need to use insert in on duplicate
+	if setting.Database.Type.IsMySQL() {
+		_, err := db.GetEngine(ctx).Exec("INSERT INTO commit_status_summary (repo_id,sha,state,target_url) VALUES (?,?,?,?) ON DUPLICATE KEY UPDATE state=?",
+			repoID, sha, state.State, state.TargetURL, state.State)
+		return err
+	}
+
+	if cnt, err := db.GetEngine(ctx).Where("repo_id=? AND sha=?", repoID, sha).
+		Cols("state, target_url").
+		Update(&CommitStatusSummary{
+			State:     state.State,
+			TargetURL: state.TargetURL,
+		}); err != nil {
+		return err
+	} else if cnt == 0 {
+		_, err = db.GetEngine(ctx).Insert(&CommitStatusSummary{
+			RepoID:    repoID,
+			SHA:       sha,
+			State:     state.State,
+			TargetURL: state.TargetURL,
+		})
+		return err
+	}
+	return nil
+}
diff --git a/models/git/commit_status_test.go b/models/git/commit_status_test.go
new file mode 100644
index 0000000..1014ee1
--- /dev/null
+++ b/models/git/commit_status_test.go
@@ -0,0 +1,267 @@
+// Copyright 2017 Gitea. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git_test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/structs"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetCommitStatuses(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	sha1 := "1234123412341234123412341234123412341234"
+
+	statuses, maxResults, err := db.FindAndCount[git_model.CommitStatus](db.DefaultContext, &git_model.CommitStatusOptions{
+		ListOptions: db.ListOptions{Page: 1, PageSize: 50},
+		RepoID:      repo1.ID,
+		SHA:         sha1,
+	})
+	require.NoError(t, err)
+	assert.Equal(t, 5, int(maxResults))
+	assert.Len(t, statuses, 5)
+
+	assert.Equal(t, "ci/awesomeness", statuses[0].Context)
+	assert.Equal(t, structs.CommitStatusPending, statuses[0].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[0].APIURL(db.DefaultContext))
+
+	assert.Equal(t, "cov/awesomeness", statuses[1].Context)
+	assert.Equal(t, structs.CommitStatusWarning, statuses[1].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[1].APIURL(db.DefaultContext))
+
+	assert.Equal(t, "cov/awesomeness", statuses[2].Context)
+	assert.Equal(t, structs.CommitStatusSuccess, statuses[2].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[2].APIURL(db.DefaultContext))
+
+	assert.Equal(t, "ci/awesomeness", statuses[3].Context)
+	assert.Equal(t, structs.CommitStatusFailure, statuses[3].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[3].APIURL(db.DefaultContext))
+
+	assert.Equal(t, "deploy/awesomeness", statuses[4].Context)
+	assert.Equal(t, structs.CommitStatusError, statuses[4].State)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/statuses/1234123412341234123412341234123412341234", statuses[4].APIURL(db.DefaultContext))
+
+	statuses, maxResults, err = db.FindAndCount[git_model.CommitStatus](db.DefaultContext, &git_model.CommitStatusOptions{
+		ListOptions: db.ListOptions{Page: 2, PageSize: 50},
+		RepoID:      repo1.ID,
+		SHA:         sha1,
+	})
+	require.NoError(t, err)
+	assert.Equal(t, 5, int(maxResults))
+	assert.Empty(t, statuses)
+}
+
+func Test_CalcCommitStatus(t *testing.T) {
+	kases := []struct {
+		statuses []*git_model.CommitStatus
+		expected *git_model.CommitStatus
+	}{
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusPending,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusPending,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusSuccess,
+				},
+				{
+					State: structs.CommitStatusPending,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusPending,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusSuccess,
+				},
+				{
+					State: structs.CommitStatusPending,
+				},
+				{
+					State: structs.CommitStatusSuccess,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusPending,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusError,
+				},
+				{
+					State: structs.CommitStatusPending,
+				},
+				{
+					State: structs.CommitStatusSuccess,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusError,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusWarning,
+				},
+				{
+					State: structs.CommitStatusPending,
+				},
+				{
+					State: structs.CommitStatusSuccess,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusWarning,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusSuccess,
+					ID:    1,
+				},
+				{
+					State: structs.CommitStatusSuccess,
+					ID:    2,
+				},
+				{
+					State: structs.CommitStatusSuccess,
+					ID:    3,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusSuccess,
+				ID:    3,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{
+				{
+					State: structs.CommitStatusFailure,
+				},
+				{
+					State: structs.CommitStatusError,
+				},
+				{
+					State: structs.CommitStatusWarning,
+				},
+			},
+			expected: &git_model.CommitStatus{
+				State: structs.CommitStatusError,
+			},
+		},
+		{
+			statuses: []*git_model.CommitStatus{},
+			expected: nil,
+		},
+	}
+
+	for _, kase := range kases {
+		assert.Equal(t, kase.expected, git_model.CalcCommitStatus(kase.statuses))
+	}
+}
+
+func TestFindRepoRecentCommitStatusContexts(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	gitRepo, err := gitrepo.OpenRepository(git.DefaultContext, repo2)
+	require.NoError(t, err)
+	defer gitRepo.Close()
+
+	commit, err := gitRepo.GetBranchCommit(repo2.DefaultBranch)
+	require.NoError(t, err)
+
+	defer func() {
+		_, err := db.DeleteByBean(db.DefaultContext, &git_model.CommitStatus{
+			RepoID:    repo2.ID,
+			CreatorID: user2.ID,
+			SHA:       commit.ID.String(),
+		})
+		require.NoError(t, err)
+	}()
+
+	err = git_model.NewCommitStatus(db.DefaultContext, git_model.NewCommitStatusOptions{
+		Repo:    repo2,
+		Creator: user2,
+		SHA:     commit.ID,
+		CommitStatus: &git_model.CommitStatus{
+			State:     structs.CommitStatusFailure,
+			TargetURL: "https://example.com/tests/",
+			Context:   "compliance/lint-backend",
+		},
+	})
+	require.NoError(t, err)
+
+	err = git_model.NewCommitStatus(db.DefaultContext, git_model.NewCommitStatusOptions{
+		Repo:    repo2,
+		Creator: user2,
+		SHA:     commit.ID,
+		CommitStatus: &git_model.CommitStatus{
+			State:     structs.CommitStatusSuccess,
+			TargetURL: "https://example.com/tests/",
+			Context:   "compliance/lint-backend",
+		},
+	})
+	require.NoError(t, err)
+
+	contexts, err := git_model.FindRepoRecentCommitStatusContexts(db.DefaultContext, repo2.ID, time.Hour)
+	require.NoError(t, err)
+	if assert.Len(t, contexts, 1) {
+		assert.Equal(t, "compliance/lint-backend", contexts[0])
+	}
+}
+
+func TestCommitStatusesHideActionsURL(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	run := unittest.AssertExistsAndLoadBean(t, &actions_model.ActionRun{ID: 791, RepoID: repo.ID})
+	require.NoError(t, run.LoadAttributes(db.DefaultContext))
+
+	statuses := []*git_model.CommitStatus{
+		{
+			RepoID:    repo.ID,
+			TargetURL: fmt.Sprintf("%s/jobs/%d", run.Link(), run.Index),
+		},
+		{
+			RepoID:    repo.ID,
+			TargetURL: "https://mycicd.org/1",
+		},
+	}
+
+	git_model.CommitStatusesHideActionsURL(db.DefaultContext, statuses)
+	assert.Empty(t, statuses[0].TargetURL)
+	assert.Equal(t, "https://mycicd.org/1", statuses[1].TargetURL)
+}
diff --git a/models/git/lfs.go b/models/git/lfs.go
new file mode 100644
index 0000000..44b741c
--- /dev/null
+++ b/models/git/lfs.go
@@ -0,0 +1,419 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/lfs"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrLFSLockNotExist represents a "LFSLockNotExist" kind of error.
+type ErrLFSLockNotExist struct {
+	ID     int64
+	RepoID int64
+	Path   string
+}
+
+// IsErrLFSLockNotExist checks if an error is a ErrLFSLockNotExist.
+func IsErrLFSLockNotExist(err error) bool {
+	_, ok := err.(ErrLFSLockNotExist)
+	return ok
+}
+
+func (err ErrLFSLockNotExist) Error() string {
+	return fmt.Sprintf("lfs lock does not exist [id: %d, rid: %d, path: %s]", err.ID, err.RepoID, err.Path)
+}
+
+func (err ErrLFSLockNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrLFSUnauthorizedAction represents a "LFSUnauthorizedAction" kind of error.
+type ErrLFSUnauthorizedAction struct {
+	RepoID   int64
+	UserName string
+	Mode     perm.AccessMode
+}
+
+// IsErrLFSUnauthorizedAction checks if an error is a ErrLFSUnauthorizedAction.
+func IsErrLFSUnauthorizedAction(err error) bool {
+	_, ok := err.(ErrLFSUnauthorizedAction)
+	return ok
+}
+
+func (err ErrLFSUnauthorizedAction) Error() string {
+	if err.Mode == perm.AccessModeWrite {
+		return fmt.Sprintf("User %s doesn't have write access for lfs lock [rid: %d]", err.UserName, err.RepoID)
+	}
+	return fmt.Sprintf("User %s doesn't have read access for lfs lock [rid: %d]", err.UserName, err.RepoID)
+}
+
+func (err ErrLFSUnauthorizedAction) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrLFSLockAlreadyExist represents a "LFSLockAlreadyExist" kind of error.
+type ErrLFSLockAlreadyExist struct {
+	RepoID int64
+	Path   string
+}
+
+// IsErrLFSLockAlreadyExist checks if an error is a ErrLFSLockAlreadyExist.
+func IsErrLFSLockAlreadyExist(err error) bool {
+	_, ok := err.(ErrLFSLockAlreadyExist)
+	return ok
+}
+
+func (err ErrLFSLockAlreadyExist) Error() string {
+	return fmt.Sprintf("lfs lock already exists [rid: %d, path: %s]", err.RepoID, err.Path)
+}
+
+func (err ErrLFSLockAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrLFSFileLocked represents a "LFSFileLocked" kind of error.
+type ErrLFSFileLocked struct {
+	RepoID   int64
+	Path     string
+	UserName string
+}
+
+// IsErrLFSFileLocked checks if an error is a ErrLFSFileLocked.
+func IsErrLFSFileLocked(err error) bool {
+	_, ok := err.(ErrLFSFileLocked)
+	return ok
+}
+
+func (err ErrLFSFileLocked) Error() string {
+	return fmt.Sprintf("File is lfs locked [repo: %d, locked by: %s, path: %s]", err.RepoID, err.UserName, err.Path)
+}
+
+func (err ErrLFSFileLocked) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// LFSMetaObject stores metadata for LFS tracked files.
+type LFSMetaObject struct {
+	ID           int64 `xorm:"pk autoincr"`
+	lfs.Pointer  `xorm:"extends"`
+	RepositoryID int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	Existing     bool               `xorm:"-"`
+	CreatedUnix  timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix  timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(LFSMetaObject))
+}
+
+// LFSTokenResponse defines the JSON structure in which the JWT token is stored.
+// This structure is fetched via SSH and passed by the Git LFS client to the server
+// endpoint for authorization.
+type LFSTokenResponse struct {
+	Header map[string]string `json:"header"`
+	Href   string            `json:"href"`
+}
+
+// ErrLFSObjectNotExist is returned from lfs models functions in order
+// to differentiate between database and missing object errors.
+var ErrLFSObjectNotExist = db.ErrNotExist{Resource: "LFS Meta object"}
+
+// NewLFSMetaObject stores a given populated LFSMetaObject structure in the database
+// if it is not already present.
+func NewLFSMetaObject(ctx context.Context, repoID int64, p lfs.Pointer) (*LFSMetaObject, error) {
+	var err error
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	m, exist, err := db.Get[LFSMetaObject](ctx, builder.Eq{"repository_id": repoID, "oid": p.Oid})
+	if err != nil {
+		return nil, err
+	} else if exist {
+		m.Existing = true
+		return m, committer.Commit()
+	}
+
+	m = &LFSMetaObject{Pointer: p, RepositoryID: repoID}
+	if err = db.Insert(ctx, m); err != nil {
+		return nil, err
+	}
+
+	return m, committer.Commit()
+}
+
+// GetLFSMetaObjectByOid selects a LFSMetaObject entry from database by its OID.
+// It may return ErrLFSObjectNotExist or a database error. If the error is nil,
+// the returned pointer is a valid LFSMetaObject.
+func GetLFSMetaObjectByOid(ctx context.Context, repoID int64, oid string) (*LFSMetaObject, error) {
+	if len(oid) == 0 {
+		return nil, ErrLFSObjectNotExist
+	}
+
+	m := &LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}, RepositoryID: repoID}
+	has, err := db.GetEngine(ctx).Get(m)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrLFSObjectNotExist
+	}
+	return m, nil
+}
+
+// RemoveLFSMetaObjectByOid removes a LFSMetaObject entry from database by its OID.
+// It may return ErrLFSObjectNotExist or a database error.
+func RemoveLFSMetaObjectByOid(ctx context.Context, repoID int64, oid string) (int64, error) {
+	return RemoveLFSMetaObjectByOidFn(ctx, repoID, oid, nil)
+}
+
+// RemoveLFSMetaObjectByOidFn removes a LFSMetaObject entry from database by its OID.
+// It may return ErrLFSObjectNotExist or a database error. It will run Fn with the current count within the transaction
+func RemoveLFSMetaObjectByOidFn(ctx context.Context, repoID int64, oid string, fn func(count int64) error) (int64, error) {
+	if len(oid) == 0 {
+		return 0, ErrLFSObjectNotExist
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return 0, err
+	}
+	defer committer.Close()
+
+	m := &LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}, RepositoryID: repoID}
+	if _, err := db.DeleteByBean(ctx, m); err != nil {
+		return -1, err
+	}
+
+	count, err := db.CountByBean(ctx, &LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}})
+	if err != nil {
+		return count, err
+	}
+
+	if fn != nil {
+		if err := fn(count); err != nil {
+			return count, err
+		}
+	}
+
+	return count, committer.Commit()
+}
+
+// GetLFSMetaObjects returns all LFSMetaObjects associated with a repository
+func GetLFSMetaObjects(ctx context.Context, repoID int64, page, pageSize int) ([]*LFSMetaObject, error) {
+	sess := db.GetEngine(ctx)
+
+	if page >= 0 && pageSize > 0 {
+		start := 0
+		if page > 0 {
+			start = (page - 1) * pageSize
+		}
+		sess.Limit(pageSize, start)
+	}
+	lfsObjects := make([]*LFSMetaObject, 0, pageSize)
+	return lfsObjects, sess.Find(&lfsObjects, &LFSMetaObject{RepositoryID: repoID})
+}
+
+// CountLFSMetaObjects returns a count of all LFSMetaObjects associated with a repository
+func CountLFSMetaObjects(ctx context.Context, repoID int64) (int64, error) {
+	return db.GetEngine(ctx).Count(&LFSMetaObject{RepositoryID: repoID})
+}
+
+// LFSObjectAccessible checks if a provided Oid is accessible to the user
+func LFSObjectAccessible(ctx context.Context, user *user_model.User, oid string) (bool, error) {
+	if user.IsAdmin {
+		count, err := db.GetEngine(ctx).Count(&LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}})
+		return count > 0, err
+	}
+	cond := repo_model.AccessibleRepositoryCondition(user, unit.TypeInvalid)
+	count, err := db.GetEngine(ctx).Where(cond).Join("INNER", "repository", "`lfs_meta_object`.repository_id = `repository`.id").Count(&LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}})
+	return count > 0, err
+}
+
+// ExistsLFSObject checks if a provided Oid exists within the DB
+func ExistsLFSObject(ctx context.Context, oid string) (bool, error) {
+	return db.GetEngine(ctx).Exist(&LFSMetaObject{Pointer: lfs.Pointer{Oid: oid}})
+}
+
+// LFSAutoAssociate auto associates accessible LFSMetaObjects
+func LFSAutoAssociate(ctx context.Context, metas []*LFSMetaObject, user *user_model.User, repoID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	sess := db.GetEngine(ctx)
+
+	oids := make([]any, len(metas))
+	oidMap := make(map[string]*LFSMetaObject, len(metas))
+	for i, meta := range metas {
+		oids[i] = meta.Oid
+		oidMap[meta.Oid] = meta
+	}
+
+	if !user.IsAdmin {
+		newMetas := make([]*LFSMetaObject, 0, len(metas))
+		cond := builder.In(
+			"`lfs_meta_object`.repository_id",
+			builder.Select("`repository`.id").From("repository").Where(repo_model.AccessibleRepositoryCondition(user, unit.TypeInvalid)),
+		)
+		err = sess.Cols("oid").Where(cond).In("oid", oids...).GroupBy("oid").Find(&newMetas)
+		if err != nil {
+			return err
+		}
+		if len(newMetas) != len(oidMap) {
+			return fmt.Errorf("unable collect all LFS objects from database, expected %d, actually %d", len(oidMap), len(newMetas))
+		}
+		for i := range newMetas {
+			newMetas[i].Size = oidMap[newMetas[i].Oid].Size
+			newMetas[i].RepositoryID = repoID
+		}
+		if err = db.Insert(ctx, newMetas); err != nil {
+			return err
+		}
+	} else {
+		// admin can associate any LFS object to any repository, and we do not care about errors (eg: duplicated unique key),
+		// even if error occurs, it won't hurt users and won't make things worse
+		for i := range metas {
+			p := lfs.Pointer{Oid: metas[i].Oid, Size: metas[i].Size}
+			_, err = sess.Insert(&LFSMetaObject{
+				Pointer:      p,
+				RepositoryID: repoID,
+			})
+			if err != nil {
+				log.Warn("failed to insert LFS meta object %-v for repo_id: %d into database, err=%v", p, repoID, err)
+			}
+		}
+	}
+	return committer.Commit()
+}
+
+// CopyLFS copies LFS data from one repo to another
+func CopyLFS(ctx context.Context, newRepo, oldRepo *repo_model.Repository) error {
+	var lfsObjects []*LFSMetaObject
+	if err := db.GetEngine(ctx).Where("repository_id=?", oldRepo.ID).Find(&lfsObjects); err != nil {
+		return err
+	}
+
+	for _, v := range lfsObjects {
+		v.ID = 0
+		v.RepositoryID = newRepo.ID
+		if err := db.Insert(ctx, v); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// GetRepoLFSSize return a repository's lfs files size
+func GetRepoLFSSize(ctx context.Context, repoID int64) (int64, error) {
+	lfsSize, err := db.GetEngine(ctx).Where("repository_id = ?", repoID).SumInt(new(LFSMetaObject), "size")
+	if err != nil {
+		return 0, fmt.Errorf("updateSize: GetLFSMetaObjects: %w", err)
+	}
+	return lfsSize, nil
+}
+
+// IterateRepositoryIDsWithLFSMetaObjects iterates across the repositories that have LFSMetaObjects
+func IterateRepositoryIDsWithLFSMetaObjects(ctx context.Context, f func(ctx context.Context, repoID, count int64) error) error {
+	batchSize := setting.Database.IterateBufferSize
+	sess := db.GetEngine(ctx)
+	var start int
+	type RepositoryCount struct {
+		RepositoryID int64
+		Count        int64
+	}
+	for {
+		counts := make([]*RepositoryCount, 0, batchSize)
+		if err := sess.Select("repository_id, COUNT(id) AS count").
+			Table("lfs_meta_object").
+			GroupBy("repository_id").
+			OrderBy("repository_id ASC").Limit(batchSize, start).Find(&counts); err != nil {
+			return err
+		}
+		if len(counts) == 0 {
+			return nil
+		}
+		start += len(counts)
+
+		for _, count := range counts {
+			if err := f(ctx, count.RepositoryID, count.Count); err != nil {
+				return err
+			}
+		}
+	}
+}
+
+// IterateLFSMetaObjectsForRepoOptions provides options for IterateLFSMetaObjectsForRepo
+type IterateLFSMetaObjectsForRepoOptions struct {
+	OlderThan               timeutil.TimeStamp
+	UpdatedLessRecentlyThan timeutil.TimeStamp
+}
+
+// IterateLFSMetaObjectsForRepo provides a iterator for LFSMetaObjects per Repo
+func IterateLFSMetaObjectsForRepo(ctx context.Context, repoID int64, f func(context.Context, *LFSMetaObject) error, opts *IterateLFSMetaObjectsForRepoOptions) error {
+	batchSize := setting.Database.IterateBufferSize
+	engine := db.GetEngine(ctx)
+	id := int64(0)
+
+	for {
+		beans := make([]*LFSMetaObject, 0, batchSize)
+		sess := engine.Table("lfs_meta_object").Select("`lfs_meta_object`.*").
+			Join("INNER", "`lfs_meta_object` AS l1", "`lfs_meta_object`.oid = `l1`.oid").
+			Where("`lfs_meta_object`.repository_id = ?", repoID)
+		if !opts.OlderThan.IsZero() {
+			sess.And("`lfs_meta_object`.created_unix < ?", opts.OlderThan)
+		}
+		if !opts.UpdatedLessRecentlyThan.IsZero() {
+			sess.And("`lfs_meta_object`.updated_unix < ?", opts.UpdatedLessRecentlyThan)
+		}
+		sess.GroupBy("`lfs_meta_object`.id").
+			And("`lfs_meta_object`.id > ?", id).
+			OrderBy("`lfs_meta_object`.id ASC")
+
+		if err := sess.Limit(batchSize, 0).Find(&beans); err != nil {
+			return err
+		}
+		if len(beans) == 0 {
+			return nil
+		}
+
+		for _, bean := range beans {
+			if err := f(ctx, bean); err != nil {
+				return err
+			}
+		}
+		id = beans[len(beans)-1].ID
+	}
+}
+
+// MarkLFSMetaObject updates the updated time for the provided LFSMetaObject
+func MarkLFSMetaObject(ctx context.Context, id int64) error {
+	obj := &LFSMetaObject{
+		UpdatedUnix: timeutil.TimeStampNow(),
+	}
+	count, err := db.GetEngine(ctx).ID(id).Update(obj)
+	if count != 1 {
+		log.Error("Unexpectedly updated %d LFSMetaObjects with ID: %d", count, id)
+	}
+	return err
+}
diff --git a/models/git/lfs_lock.go b/models/git/lfs_lock.go
new file mode 100644
index 0000000..07ce7d4
--- /dev/null
+++ b/models/git/lfs_lock.go
@@ -0,0 +1,209 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// LFSLock represents a git lfs lock of repository.
+type LFSLock struct {
+	ID      int64            `xorm:"pk autoincr"`
+	RepoID  int64            `xorm:"INDEX NOT NULL"`
+	OwnerID int64            `xorm:"INDEX NOT NULL"`
+	Owner   *user_model.User `xorm:"-"`
+	Path    string           `xorm:"TEXT"`
+	Created time.Time        `xorm:"created"`
+}
+
+func init() {
+	db.RegisterModel(new(LFSLock))
+}
+
+// BeforeInsert is invoked from XORM before inserting an object of this type.
+func (l *LFSLock) BeforeInsert() {
+	l.Path = util.PathJoinRel(l.Path)
+}
+
+// LoadAttributes loads attributes of the lock.
+func (l *LFSLock) LoadAttributes(ctx context.Context) error {
+	// Load owner
+	if err := l.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	return nil
+}
+
+// LoadOwner loads owner of the lock.
+func (l *LFSLock) LoadOwner(ctx context.Context) error {
+	if l.Owner != nil {
+		return nil
+	}
+
+	owner, err := user_model.GetUserByID(ctx, l.OwnerID)
+	if err != nil {
+		if user_model.IsErrUserNotExist(err) {
+			l.Owner = user_model.NewGhostUser()
+			return nil
+		}
+		return err
+	}
+	l.Owner = owner
+
+	return nil
+}
+
+// CreateLFSLock creates a new lock.
+func CreateLFSLock(ctx context.Context, repo *repo_model.Repository, lock *LFSLock) (*LFSLock, error) {
+	dbCtx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	if err := CheckLFSAccessForRepo(dbCtx, lock.OwnerID, repo, perm.AccessModeWrite); err != nil {
+		return nil, err
+	}
+
+	lock.Path = util.PathJoinRel(lock.Path)
+	lock.RepoID = repo.ID
+
+	l, err := GetLFSLock(dbCtx, repo, lock.Path)
+	if err == nil {
+		return l, ErrLFSLockAlreadyExist{lock.RepoID, lock.Path}
+	}
+	if !IsErrLFSLockNotExist(err) {
+		return nil, err
+	}
+
+	if err := db.Insert(dbCtx, lock); err != nil {
+		return nil, err
+	}
+
+	return lock, committer.Commit()
+}
+
+// GetLFSLock returns release by given path.
+func GetLFSLock(ctx context.Context, repo *repo_model.Repository, path string) (*LFSLock, error) {
+	path = util.PathJoinRel(path)
+	rel := &LFSLock{RepoID: repo.ID}
+	has, err := db.GetEngine(ctx).Where("lower(path) = ?", strings.ToLower(path)).Get(rel)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrLFSLockNotExist{0, repo.ID, path}
+	}
+	return rel, nil
+}
+
+// GetLFSLockByID returns release by given id.
+func GetLFSLockByID(ctx context.Context, id int64) (*LFSLock, error) {
+	lock := new(LFSLock)
+	has, err := db.GetEngine(ctx).ID(id).Get(lock)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrLFSLockNotExist{id, 0, ""}
+	}
+	return lock, nil
+}
+
+// GetLFSLockByRepoID returns a list of locks of repository.
+func GetLFSLockByRepoID(ctx context.Context, repoID int64, page, pageSize int) (LFSLockList, error) {
+	e := db.GetEngine(ctx)
+	if page >= 0 && pageSize > 0 {
+		start := 0
+		if page > 0 {
+			start = (page - 1) * pageSize
+		}
+		e.Limit(pageSize, start)
+	}
+	lfsLocks := make(LFSLockList, 0, pageSize)
+	return lfsLocks, e.Find(&lfsLocks, &LFSLock{RepoID: repoID})
+}
+
+// GetTreePathLock returns LSF lock for the treePath
+func GetTreePathLock(ctx context.Context, repoID int64, treePath string) (*LFSLock, error) {
+	if !setting.LFS.StartServer {
+		return nil, nil
+	}
+
+	locks, err := GetLFSLockByRepoID(ctx, repoID, 0, 0)
+	if err != nil {
+		return nil, err
+	}
+	for _, lock := range locks {
+		if lock.Path == treePath {
+			return lock, nil
+		}
+	}
+	return nil, nil
+}
+
+// CountLFSLockByRepoID returns a count of all LFSLocks associated with a repository.
+func CountLFSLockByRepoID(ctx context.Context, repoID int64) (int64, error) {
+	return db.GetEngine(ctx).Count(&LFSLock{RepoID: repoID})
+}
+
+// DeleteLFSLockByID deletes a lock by given ID.
+func DeleteLFSLockByID(ctx context.Context, id int64, repo *repo_model.Repository, u *user_model.User, force bool) (*LFSLock, error) {
+	dbCtx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	lock, err := GetLFSLockByID(dbCtx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := CheckLFSAccessForRepo(dbCtx, u.ID, repo, perm.AccessModeWrite); err != nil {
+		return nil, err
+	}
+
+	if !force && u.ID != lock.OwnerID {
+		return nil, errors.New("user doesn't own lock and force flag is not set")
+	}
+
+	if _, err := db.GetEngine(dbCtx).ID(id).Delete(new(LFSLock)); err != nil {
+		return nil, err
+	}
+
+	return lock, committer.Commit()
+}
+
+// CheckLFSAccessForRepo check needed access mode base on action
+func CheckLFSAccessForRepo(ctx context.Context, ownerID int64, repo *repo_model.Repository, mode perm.AccessMode) error {
+	if ownerID == 0 {
+		return ErrLFSUnauthorizedAction{repo.ID, "undefined", mode}
+	}
+	u, err := user_model.GetUserByID(ctx, ownerID)
+	if err != nil {
+		return err
+	}
+	perm, err := access_model.GetUserRepoPermission(ctx, repo, u)
+	if err != nil {
+		return err
+	}
+	if !perm.CanAccess(mode, unit.TypeCode) {
+		return ErrLFSUnauthorizedAction{repo.ID, u.DisplayName(), mode}
+	}
+	return nil
+}
diff --git a/models/git/lfs_lock_list.go b/models/git/lfs_lock_list.go
new file mode 100644
index 0000000..cab1e61
--- /dev/null
+++ b/models/git/lfs_lock_list.go
@@ -0,0 +1,54 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+)
+
+// LFSLockList is a list of LFSLock
+type LFSLockList []*LFSLock
+
+// LoadAttributes loads the attributes for the given locks
+func (locks LFSLockList) LoadAttributes(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	if err := locks.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	return nil
+}
+
+// LoadOwner loads the owner of the locks
+func (locks LFSLockList) LoadOwner(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	usersIDs := container.FilterSlice(locks, func(lock *LFSLock) (int64, bool) {
+		return lock.OwnerID, true
+	})
+	users := make(map[int64]*user_model.User, len(usersIDs))
+	if err := db.GetEngine(ctx).
+		In("id", usersIDs).
+		Find(&users); err != nil {
+		return fmt.Errorf("find users: %w", err)
+	}
+	for _, v := range locks {
+		v.Owner = users[v.OwnerID]
+		if v.Owner == nil { // not exist
+			v.Owner = user_model.NewGhostUser()
+		}
+	}
+
+	return nil
+}
diff --git a/models/git/lfs_test.go b/models/git/lfs_test.go
new file mode 100644
index 0000000..afb73ec
--- /dev/null
+++ b/models/git/lfs_test.go
@@ -0,0 +1,102 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIterateRepositoryIDsWithLFSMetaObjects(t *testing.T) {
+	defer unittest.OverrideFixtures(
+		unittest.FixturesOptions{
+			Dir:  filepath.Join(setting.AppWorkPath, "models/fixtures/"),
+			Base: setting.AppWorkPath,
+			Dirs: []string{"models/git/TestIterateRepositoryIDsWithLFSMetaObjects/"},
+		},
+	)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	type repocount struct {
+		repoid int64
+		count  int64
+	}
+	expected := []repocount{{1, 1}, {54, 4}}
+
+	t.Run("Normal batch size", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Database.IterateBufferSize, 20)()
+		cases := []repocount{}
+
+		err := IterateRepositoryIDsWithLFSMetaObjects(db.DefaultContext, func(ctx context.Context, repoID, count int64) error {
+			cases = append(cases, repocount{repoID, count})
+			return nil
+		})
+		require.NoError(t, err)
+		assert.EqualValues(t, expected, cases)
+	})
+
+	t.Run("Low batch size", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Database.IterateBufferSize, 1)()
+		cases := []repocount{}
+
+		err := IterateRepositoryIDsWithLFSMetaObjects(db.DefaultContext, func(ctx context.Context, repoID, count int64) error {
+			cases = append(cases, repocount{repoID, count})
+			return nil
+		})
+		require.NoError(t, err)
+		assert.EqualValues(t, expected, cases)
+	})
+}
+
+func TestIterateLFSMetaObjectsForRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	expectedIDs := []int64{1, 2, 3, 4}
+
+	t.Run("Normal batch size", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Database.IterateBufferSize, 20)()
+		actualIDs := []int64{}
+
+		err := IterateLFSMetaObjectsForRepo(db.DefaultContext, 54, func(ctx context.Context, lo *LFSMetaObject) error {
+			actualIDs = append(actualIDs, lo.ID)
+			return nil
+		}, &IterateLFSMetaObjectsForRepoOptions{})
+		require.NoError(t, err)
+		assert.EqualValues(t, expectedIDs, actualIDs)
+	})
+
+	t.Run("Low batch size", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Database.IterateBufferSize, 1)()
+		actualIDs := []int64{}
+
+		err := IterateLFSMetaObjectsForRepo(db.DefaultContext, 54, func(ctx context.Context, lo *LFSMetaObject) error {
+			actualIDs = append(actualIDs, lo.ID)
+			return nil
+		}, &IterateLFSMetaObjectsForRepoOptions{})
+		require.NoError(t, err)
+		assert.EqualValues(t, expectedIDs, actualIDs)
+
+		t.Run("Batch handles updates", func(t *testing.T) {
+			actualIDs := []int64{}
+
+			err := IterateLFSMetaObjectsForRepo(db.DefaultContext, 54, func(ctx context.Context, lo *LFSMetaObject) error {
+				actualIDs = append(actualIDs, lo.ID)
+				_, err := db.DeleteByID[LFSMetaObject](ctx, lo.ID)
+				require.NoError(t, err)
+				return nil
+			}, &IterateLFSMetaObjectsForRepoOptions{})
+			require.NoError(t, err)
+			assert.EqualValues(t, expectedIDs, actualIDs)
+		})
+	})
+}
diff --git a/models/git/main_test.go b/models/git/main_test.go
new file mode 100644
index 0000000..aab1fa9
--- /dev/null
+++ b/models/git/main_test.go
@@ -0,0 +1,18 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/git/protected_banch_list_test.go b/models/git/protected_banch_list_test.go
new file mode 100644
index 0000000..09319d2
--- /dev/null
+++ b/models/git/protected_banch_list_test.go
@@ -0,0 +1,77 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestBranchRuleMatchPriority(t *testing.T) {
+	kases := []struct {
+		Rules            []string
+		BranchName       string
+		ExpectedMatchIdx int
+	}{
+		{
+			Rules:            []string{"release/*", "release/v1.17"},
+			BranchName:       "release/v1.17",
+			ExpectedMatchIdx: 1,
+		},
+		{
+			Rules:            []string{"release/v1.17", "release/*"},
+			BranchName:       "release/v1.17",
+			ExpectedMatchIdx: 0,
+		},
+		{
+			Rules:            []string{"release/**/v1.17", "release/test/v1.17"},
+			BranchName:       "release/test/v1.17",
+			ExpectedMatchIdx: 1,
+		},
+		{
+			Rules:            []string{"release/test/v1.17", "release/**/v1.17"},
+			BranchName:       "release/test/v1.17",
+			ExpectedMatchIdx: 0,
+		},
+		{
+			Rules:            []string{"release/**", "release/v1.0.0"},
+			BranchName:       "release/v1.0.0",
+			ExpectedMatchIdx: 1,
+		},
+		{
+			Rules:            []string{"release/v1.0.0", "release/**"},
+			BranchName:       "release/v1.0.0",
+			ExpectedMatchIdx: 0,
+		},
+		{
+			Rules:            []string{"release/**", "release/v1.0.0"},
+			BranchName:       "release/v2.0.0",
+			ExpectedMatchIdx: 0,
+		},
+		{
+			Rules:            []string{"release/*", "release/v1.0.0"},
+			BranchName:       "release/1/v2.0.0",
+			ExpectedMatchIdx: -1,
+		},
+	}
+
+	for _, kase := range kases {
+		var pbs ProtectedBranchRules
+		for _, rule := range kase.Rules {
+			pbs = append(pbs, &ProtectedBranch{RuleName: rule})
+		}
+		pbs.sort()
+		matchedPB := pbs.GetFirstMatched(kase.BranchName)
+		if matchedPB == nil {
+			if kase.ExpectedMatchIdx >= 0 {
+				require.Error(t, fmt.Errorf("no matched rules but expected %s[%d]", kase.Rules[kase.ExpectedMatchIdx], kase.ExpectedMatchIdx))
+			}
+		} else {
+			assert.EqualValues(t, kase.Rules[kase.ExpectedMatchIdx], matchedPB.RuleName)
+		}
+	}
+}
diff --git a/models/git/protected_branch.go b/models/git/protected_branch.go
new file mode 100644
index 0000000..a8b8c81
--- /dev/null
+++ b/models/git/protected_branch.go
@@ -0,0 +1,511 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"slices"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/gobwas/glob"
+	"github.com/gobwas/glob/syntax"
+	"xorm.io/builder"
+)
+
+var ErrBranchIsProtected = errors.New("branch is protected")
+
+// ProtectedBranch struct
+type ProtectedBranch struct {
+	ID                            int64                  `xorm:"pk autoincr"`
+	RepoID                        int64                  `xorm:"UNIQUE(s)"`
+	Repo                          *repo_model.Repository `xorm:"-"`
+	RuleName                      string                 `xorm:"'branch_name' UNIQUE(s)"` // a branch name or a glob match to branch name
+	globRule                      glob.Glob              `xorm:"-"`
+	isPlainName                   bool                   `xorm:"-"`
+	CanPush                       bool                   `xorm:"NOT NULL DEFAULT false"`
+	EnableWhitelist               bool
+	WhitelistUserIDs              []int64  `xorm:"JSON TEXT"`
+	WhitelistTeamIDs              []int64  `xorm:"JSON TEXT"`
+	EnableMergeWhitelist          bool     `xorm:"NOT NULL DEFAULT false"`
+	WhitelistDeployKeys           bool     `xorm:"NOT NULL DEFAULT false"`
+	MergeWhitelistUserIDs         []int64  `xorm:"JSON TEXT"`
+	MergeWhitelistTeamIDs         []int64  `xorm:"JSON TEXT"`
+	EnableStatusCheck             bool     `xorm:"NOT NULL DEFAULT false"`
+	StatusCheckContexts           []string `xorm:"JSON TEXT"`
+	EnableApprovalsWhitelist      bool     `xorm:"NOT NULL DEFAULT false"`
+	ApprovalsWhitelistUserIDs     []int64  `xorm:"JSON TEXT"`
+	ApprovalsWhitelistTeamIDs     []int64  `xorm:"JSON TEXT"`
+	RequiredApprovals             int64    `xorm:"NOT NULL DEFAULT 0"`
+	BlockOnRejectedReviews        bool     `xorm:"NOT NULL DEFAULT false"`
+	BlockOnOfficialReviewRequests bool     `xorm:"NOT NULL DEFAULT false"`
+	BlockOnOutdatedBranch         bool     `xorm:"NOT NULL DEFAULT false"`
+	DismissStaleApprovals         bool     `xorm:"NOT NULL DEFAULT false"`
+	IgnoreStaleApprovals          bool     `xorm:"NOT NULL DEFAULT false"`
+	RequireSignedCommits          bool     `xorm:"NOT NULL DEFAULT false"`
+	ProtectedFilePatterns         string   `xorm:"TEXT"`
+	UnprotectedFilePatterns       string   `xorm:"TEXT"`
+	ApplyToAdmins                 bool     `xorm:"NOT NULL DEFAULT false"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ProtectedBranch))
+}
+
+// IsRuleNameSpecial return true if it contains special character
+func IsRuleNameSpecial(ruleName string) bool {
+	for i := 0; i < len(ruleName); i++ {
+		if syntax.Special(ruleName[i]) {
+			return true
+		}
+	}
+	return false
+}
+
+func (protectBranch *ProtectedBranch) loadGlob() {
+	if protectBranch.globRule == nil {
+		var err error
+		protectBranch.globRule, err = glob.Compile(protectBranch.RuleName, '/')
+		if err != nil {
+			log.Warn("Invalid glob rule for ProtectedBranch[%d]: %s %v", protectBranch.ID, protectBranch.RuleName, err)
+			protectBranch.globRule = glob.MustCompile(glob.QuoteMeta(protectBranch.RuleName), '/')
+		}
+		protectBranch.isPlainName = !IsRuleNameSpecial(protectBranch.RuleName)
+	}
+}
+
+// Match tests if branchName matches the rule
+func (protectBranch *ProtectedBranch) Match(branchName string) bool {
+	protectBranch.loadGlob()
+	if protectBranch.isPlainName {
+		return strings.EqualFold(protectBranch.RuleName, branchName)
+	}
+
+	return protectBranch.globRule.Match(branchName)
+}
+
+func (protectBranch *ProtectedBranch) LoadRepo(ctx context.Context) (err error) {
+	if protectBranch.Repo != nil {
+		return nil
+	}
+	protectBranch.Repo, err = repo_model.GetRepositoryByID(ctx, protectBranch.RepoID)
+	return err
+}
+
+// CanUserPush returns if some user could push to this protected branch
+func (protectBranch *ProtectedBranch) CanUserPush(ctx context.Context, user *user_model.User) bool {
+	if !protectBranch.CanPush {
+		return false
+	}
+
+	if !protectBranch.EnableWhitelist {
+		if err := protectBranch.LoadRepo(ctx); err != nil {
+			log.Error("LoadRepo: %v", err)
+			return false
+		}
+
+		writeAccess, err := access_model.HasAccessUnit(ctx, user, protectBranch.Repo, unit.TypeCode, perm.AccessModeWrite)
+		if err != nil {
+			log.Error("HasAccessUnit: %v", err)
+			return false
+		}
+		return writeAccess
+	}
+
+	if slices.Contains(protectBranch.WhitelistUserIDs, user.ID) {
+		return true
+	}
+
+	if len(protectBranch.WhitelistTeamIDs) == 0 {
+		return false
+	}
+
+	in, err := organization.IsUserInTeams(ctx, user.ID, protectBranch.WhitelistTeamIDs)
+	if err != nil {
+		log.Error("IsUserInTeams: %v", err)
+		return false
+	}
+	return in
+}
+
+// IsUserMergeWhitelisted checks if some user is whitelisted to merge to this branch
+func IsUserMergeWhitelisted(ctx context.Context, protectBranch *ProtectedBranch, userID int64, permissionInRepo access_model.Permission) bool {
+	if !protectBranch.EnableMergeWhitelist {
+		// Then we need to fall back on whether the user has write permission
+		return permissionInRepo.CanWrite(unit.TypeCode)
+	}
+
+	if slices.Contains(protectBranch.MergeWhitelistUserIDs, userID) {
+		return true
+	}
+
+	if len(protectBranch.MergeWhitelistTeamIDs) == 0 {
+		return false
+	}
+
+	in, err := organization.IsUserInTeams(ctx, userID, protectBranch.MergeWhitelistTeamIDs)
+	if err != nil {
+		log.Error("IsUserInTeams: %v", err)
+		return false
+	}
+	return in
+}
+
+// IsUserOfficialReviewer check if user is official reviewer for the branch (counts towards required approvals)
+func IsUserOfficialReviewer(ctx context.Context, protectBranch *ProtectedBranch, user *user_model.User) (bool, error) {
+	repo, err := repo_model.GetRepositoryByID(ctx, protectBranch.RepoID)
+	if err != nil {
+		return false, err
+	}
+
+	if !protectBranch.EnableApprovalsWhitelist {
+		// Anyone with write access is considered official reviewer
+		writeAccess, err := access_model.HasAccessUnit(ctx, user, repo, unit.TypeCode, perm.AccessModeWrite)
+		if err != nil {
+			return false, err
+		}
+		return writeAccess, nil
+	}
+
+	if slices.Contains(protectBranch.ApprovalsWhitelistUserIDs, user.ID) {
+		return true, nil
+	}
+
+	inTeam, err := organization.IsUserInTeams(ctx, user.ID, protectBranch.ApprovalsWhitelistTeamIDs)
+	if err != nil {
+		return false, err
+	}
+
+	return inTeam, nil
+}
+
+// GetProtectedFilePatterns parses a semicolon separated list of protected file patterns and returns a glob.Glob slice
+func (protectBranch *ProtectedBranch) GetProtectedFilePatterns() []glob.Glob {
+	return getFilePatterns(protectBranch.ProtectedFilePatterns)
+}
+
+// GetUnprotectedFilePatterns parses a semicolon separated list of unprotected file patterns and returns a glob.Glob slice
+func (protectBranch *ProtectedBranch) GetUnprotectedFilePatterns() []glob.Glob {
+	return getFilePatterns(protectBranch.UnprotectedFilePatterns)
+}
+
+func getFilePatterns(filePatterns string) []glob.Glob {
+	extarr := make([]glob.Glob, 0, 10)
+	for _, expr := range strings.Split(strings.ToLower(filePatterns), ";") {
+		expr = strings.TrimSpace(expr)
+		if expr != "" {
+			if g, err := glob.Compile(expr, '.', '/'); err != nil {
+				log.Info("Invalid glob expression '%s' (skipped): %v", expr, err)
+			} else {
+				extarr = append(extarr, g)
+			}
+		}
+	}
+	return extarr
+}
+
+// MergeBlockedByProtectedFiles returns true if merge is blocked by protected files change
+func (protectBranch *ProtectedBranch) MergeBlockedByProtectedFiles(changedProtectedFiles []string) bool {
+	glob := protectBranch.GetProtectedFilePatterns()
+	if len(glob) == 0 {
+		return false
+	}
+
+	return len(changedProtectedFiles) > 0
+}
+
+// IsProtectedFile return if path is protected
+func (protectBranch *ProtectedBranch) IsProtectedFile(patterns []glob.Glob, path string) bool {
+	if len(patterns) == 0 {
+		patterns = protectBranch.GetProtectedFilePatterns()
+		if len(patterns) == 0 {
+			return false
+		}
+	}
+
+	lpath := strings.ToLower(strings.TrimSpace(path))
+
+	r := false
+	for _, pat := range patterns {
+		if pat.Match(lpath) {
+			r = true
+			break
+		}
+	}
+
+	return r
+}
+
+// IsUnprotectedFile return if path is unprotected
+func (protectBranch *ProtectedBranch) IsUnprotectedFile(patterns []glob.Glob, path string) bool {
+	if len(patterns) == 0 {
+		patterns = protectBranch.GetUnprotectedFilePatterns()
+		if len(patterns) == 0 {
+			return false
+		}
+	}
+
+	lpath := strings.ToLower(strings.TrimSpace(path))
+
+	r := false
+	for _, pat := range patterns {
+		if pat.Match(lpath) {
+			r = true
+			break
+		}
+	}
+
+	return r
+}
+
+// GetProtectedBranchRuleByName getting protected branch rule by name
+func GetProtectedBranchRuleByName(ctx context.Context, repoID int64, ruleName string) (*ProtectedBranch, error) {
+	// branch_name is legacy name, it actually is rule name
+	rel, exist, err := db.Get[ProtectedBranch](ctx, builder.Eq{"repo_id": repoID, "branch_name": ruleName})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, nil
+	}
+	return rel, nil
+}
+
+// GetProtectedBranchRuleByID getting protected branch rule by rule ID
+func GetProtectedBranchRuleByID(ctx context.Context, repoID, ruleID int64) (*ProtectedBranch, error) {
+	rel, exist, err := db.Get[ProtectedBranch](ctx, builder.Eq{"repo_id": repoID, "id": ruleID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, nil
+	}
+	return rel, nil
+}
+
+// WhitelistOptions represent all sorts of whitelists used for protected branches
+type WhitelistOptions struct {
+	UserIDs []int64
+	TeamIDs []int64
+
+	MergeUserIDs []int64
+	MergeTeamIDs []int64
+
+	ApprovalsUserIDs []int64
+	ApprovalsTeamIDs []int64
+}
+
+// UpdateProtectBranch saves branch protection options of repository.
+// If ID is 0, it creates a new record. Otherwise, updates existing record.
+// This function also performs check if whitelist user and team's IDs have been changed
+// to avoid unnecessary whitelist delete and regenerate.
+func UpdateProtectBranch(ctx context.Context, repo *repo_model.Repository, protectBranch *ProtectedBranch, opts WhitelistOptions) (err error) {
+	err = repo.MustNotBeArchived()
+	if err != nil {
+		return err
+	}
+
+	if err = repo.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("LoadOwner: %v", err)
+	}
+
+	whitelist, err := updateUserWhitelist(ctx, repo, protectBranch.WhitelistUserIDs, opts.UserIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.WhitelistUserIDs = whitelist
+
+	whitelist, err = updateUserWhitelist(ctx, repo, protectBranch.MergeWhitelistUserIDs, opts.MergeUserIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.MergeWhitelistUserIDs = whitelist
+
+	whitelist, err = updateApprovalWhitelist(ctx, repo, protectBranch.ApprovalsWhitelistUserIDs, opts.ApprovalsUserIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.ApprovalsWhitelistUserIDs = whitelist
+
+	// if the repo is in an organization
+	whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.WhitelistTeamIDs, opts.TeamIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.WhitelistTeamIDs = whitelist
+
+	whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.MergeWhitelistTeamIDs, opts.MergeTeamIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.MergeWhitelistTeamIDs = whitelist
+
+	whitelist, err = updateTeamWhitelist(ctx, repo, protectBranch.ApprovalsWhitelistTeamIDs, opts.ApprovalsTeamIDs)
+	if err != nil {
+		return err
+	}
+	protectBranch.ApprovalsWhitelistTeamIDs = whitelist
+
+	// Make sure protectBranch.ID is not 0 for whitelists
+	if protectBranch.ID == 0 {
+		if _, err = db.GetEngine(ctx).Insert(protectBranch); err != nil {
+			return fmt.Errorf("Insert: %v", err)
+		}
+		return nil
+	}
+
+	if _, err = db.GetEngine(ctx).ID(protectBranch.ID).AllCols().Update(protectBranch); err != nil {
+		return fmt.Errorf("Update: %v", err)
+	}
+
+	return nil
+}
+
+// updateApprovalWhitelist checks whether the user whitelist changed and returns a whitelist with
+// the users from newWhitelist which have explicit read or write access to the repo.
+func updateApprovalWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
+	hasUsersChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
+	if !hasUsersChanged {
+		return currentWhitelist, nil
+	}
+
+	whitelist = make([]int64, 0, len(newWhitelist))
+	for _, userID := range newWhitelist {
+		if reader, err := access_model.IsRepoReader(ctx, repo, userID); err != nil {
+			return nil, err
+		} else if !reader {
+			continue
+		}
+		whitelist = append(whitelist, userID)
+	}
+
+	return whitelist, err
+}
+
+// updateUserWhitelist checks whether the user whitelist changed and returns a whitelist with
+// the users from newWhitelist which have write access to the repo.
+func updateUserWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
+	hasUsersChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
+	if !hasUsersChanged {
+		return currentWhitelist, nil
+	}
+
+	whitelist = make([]int64, 0, len(newWhitelist))
+	for _, userID := range newWhitelist {
+		user, err := user_model.GetUserByID(ctx, userID)
+		if err != nil {
+			return nil, fmt.Errorf("GetUserByID [user_id: %d, repo_id: %d]: %v", userID, repo.ID, err)
+		}
+		perm, err := access_model.GetUserRepoPermission(ctx, repo, user)
+		if err != nil {
+			return nil, fmt.Errorf("GetUserRepoPermission [user_id: %d, repo_id: %d]: %v", userID, repo.ID, err)
+		}
+
+		if !perm.CanWrite(unit.TypeCode) {
+			continue // Drop invalid user ID
+		}
+
+		whitelist = append(whitelist, userID)
+	}
+
+	return whitelist, err
+}
+
+// updateTeamWhitelist checks whether the team whitelist changed and returns a whitelist with
+// the teams from newWhitelist which have write access to the repo.
+func updateTeamWhitelist(ctx context.Context, repo *repo_model.Repository, currentWhitelist, newWhitelist []int64) (whitelist []int64, err error) {
+	hasTeamsChanged := !util.SliceSortedEqual(currentWhitelist, newWhitelist)
+	if !hasTeamsChanged {
+		return currentWhitelist, nil
+	}
+
+	teams, err := organization.GetTeamsWithAccessToRepo(ctx, repo.OwnerID, repo.ID, perm.AccessModeRead)
+	if err != nil {
+		return nil, fmt.Errorf("GetTeamsWithAccessToRepo [org_id: %d, repo_id: %d]: %v", repo.OwnerID, repo.ID, err)
+	}
+
+	whitelist = make([]int64, 0, len(teams))
+	for i := range teams {
+		if slices.Contains(newWhitelist, teams[i].ID) {
+			whitelist = append(whitelist, teams[i].ID)
+		}
+	}
+
+	return whitelist, err
+}
+
+// DeleteProtectedBranch removes ProtectedBranch relation between the user and repository.
+func DeleteProtectedBranch(ctx context.Context, repo *repo_model.Repository, id int64) (err error) {
+	err = repo.MustNotBeArchived()
+	if err != nil {
+		return err
+	}
+
+	protectedBranch := &ProtectedBranch{
+		RepoID: repo.ID,
+		ID:     id,
+	}
+
+	if affected, err := db.GetEngine(ctx).Delete(protectedBranch); err != nil {
+		return err
+	} else if affected != 1 {
+		return fmt.Errorf("delete protected branch ID(%v) failed", id)
+	}
+
+	return nil
+}
+
+// RemoveUserIDFromProtectedBranch remove all user ids from protected branch options
+func RemoveUserIDFromProtectedBranch(ctx context.Context, p *ProtectedBranch, userID int64) error {
+	lenIDs, lenApprovalIDs, lenMergeIDs := len(p.WhitelistUserIDs), len(p.ApprovalsWhitelistUserIDs), len(p.MergeWhitelistUserIDs)
+	p.WhitelistUserIDs = util.SliceRemoveAll(p.WhitelistUserIDs, userID)
+	p.ApprovalsWhitelistUserIDs = util.SliceRemoveAll(p.ApprovalsWhitelistUserIDs, userID)
+	p.MergeWhitelistUserIDs = util.SliceRemoveAll(p.MergeWhitelistUserIDs, userID)
+
+	if lenIDs != len(p.WhitelistUserIDs) || lenApprovalIDs != len(p.ApprovalsWhitelistUserIDs) ||
+		lenMergeIDs != len(p.MergeWhitelistUserIDs) {
+		if _, err := db.GetEngine(ctx).ID(p.ID).Cols(
+			"whitelist_user_i_ds",
+			"merge_whitelist_user_i_ds",
+			"approvals_whitelist_user_i_ds",
+		).Update(p); err != nil {
+			return fmt.Errorf("updateProtectedBranches: %v", err)
+		}
+	}
+	return nil
+}
+
+// RemoveTeamIDFromProtectedBranch remove all team ids from protected branch options
+func RemoveTeamIDFromProtectedBranch(ctx context.Context, p *ProtectedBranch, teamID int64) error {
+	lenIDs, lenApprovalIDs, lenMergeIDs := len(p.WhitelistTeamIDs), len(p.ApprovalsWhitelistTeamIDs), len(p.MergeWhitelistTeamIDs)
+	p.WhitelistTeamIDs = util.SliceRemoveAll(p.WhitelistTeamIDs, teamID)
+	p.ApprovalsWhitelistTeamIDs = util.SliceRemoveAll(p.ApprovalsWhitelistTeamIDs, teamID)
+	p.MergeWhitelistTeamIDs = util.SliceRemoveAll(p.MergeWhitelistTeamIDs, teamID)
+
+	if lenIDs != len(p.WhitelistTeamIDs) ||
+		lenApprovalIDs != len(p.ApprovalsWhitelistTeamIDs) ||
+		lenMergeIDs != len(p.MergeWhitelistTeamIDs) {
+		if _, err := db.GetEngine(ctx).ID(p.ID).Cols(
+			"whitelist_team_i_ds",
+			"merge_whitelist_team_i_ds",
+			"approvals_whitelist_team_i_ds",
+		).Update(p); err != nil {
+			return fmt.Errorf("updateProtectedBranches: %v", err)
+		}
+	}
+	return nil
+}
diff --git a/models/git/protected_branch_list.go b/models/git/protected_branch_list.go
new file mode 100644
index 0000000..613333a
--- /dev/null
+++ b/models/git/protected_branch_list.go
@@ -0,0 +1,95 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"sort"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/optional"
+
+	"github.com/gobwas/glob"
+)
+
+type ProtectedBranchRules []*ProtectedBranch
+
+func (rules ProtectedBranchRules) GetFirstMatched(branchName string) *ProtectedBranch {
+	for _, rule := range rules {
+		if rule.Match(branchName) {
+			return rule
+		}
+	}
+	return nil
+}
+
+func (rules ProtectedBranchRules) sort() {
+	sort.Slice(rules, func(i, j int) bool {
+		rules[i].loadGlob()
+		rules[j].loadGlob()
+		if rules[i].isPlainName != rules[j].isPlainName {
+			return rules[i].isPlainName // plain name comes first, so plain name means "less"
+		}
+		return rules[i].CreatedUnix < rules[j].CreatedUnix
+	})
+}
+
+// FindRepoProtectedBranchRules load all repository's protected rules
+func FindRepoProtectedBranchRules(ctx context.Context, repoID int64) (ProtectedBranchRules, error) {
+	var rules ProtectedBranchRules
+	err := db.GetEngine(ctx).Where("repo_id = ?", repoID).Asc("created_unix").Find(&rules)
+	if err != nil {
+		return nil, err
+	}
+	rules.sort() // to make non-glob rules have higher priority, and for same glob/non-glob rules, first created rules have higher priority
+	return rules, nil
+}
+
+// FindAllMatchedBranches find all matched branches
+func FindAllMatchedBranches(ctx context.Context, repoID int64, ruleName string) ([]string, error) {
+	results := make([]string, 0, 10)
+	for page := 1; ; page++ {
+		brancheNames, err := FindBranchNames(ctx, FindBranchOptions{
+			ListOptions: db.ListOptions{
+				PageSize: 100,
+				Page:     page,
+			},
+			RepoID:          repoID,
+			IsDeletedBranch: optional.Some(false),
+		})
+		if err != nil {
+			return nil, err
+		}
+		rule := glob.MustCompile(ruleName)
+
+		for _, branch := range brancheNames {
+			if rule.Match(branch) {
+				results = append(results, branch)
+			}
+		}
+		if len(brancheNames) < 100 {
+			break
+		}
+	}
+
+	return results, nil
+}
+
+// GetFirstMatchProtectedBranchRule returns the first matched rules
+func GetFirstMatchProtectedBranchRule(ctx context.Context, repoID int64, branchName string) (*ProtectedBranch, error) {
+	rules, err := FindRepoProtectedBranchRules(ctx, repoID)
+	if err != nil {
+		return nil, err
+	}
+	return rules.GetFirstMatched(branchName), nil
+}
+
+// IsBranchProtected checks if branch is protected
+func IsBranchProtected(ctx context.Context, repoID int64, branchName string) (bool, error) {
+	rule, err := GetFirstMatchProtectedBranchRule(ctx, repoID, branchName)
+	if err != nil {
+		return false, err
+	}
+	return rule != nil, nil
+}
diff --git a/models/git/protected_branch_test.go b/models/git/protected_branch_test.go
new file mode 100644
index 0000000..278fa9f
--- /dev/null
+++ b/models/git/protected_branch_test.go
@@ -0,0 +1,69 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBranchRuleMatch(t *testing.T) {
+	kases := []struct {
+		Rule          string
+		BranchName    string
+		ExpectedMatch bool
+	}{
+		{
+			Rule:          "release/*",
+			BranchName:    "release/v1.17",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "release/**/v1.17",
+			BranchName:    "release/test/v1.17",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "release/**/v1.17",
+			BranchName:    "release/test/1/v1.17",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "release/*/v1.17",
+			BranchName:    "release/test/1/v1.17",
+			ExpectedMatch: false,
+		},
+		{
+			Rule:          "release/v*",
+			BranchName:    "release/v1.16",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "*",
+			BranchName:    "release/v1.16",
+			ExpectedMatch: false,
+		},
+		{
+			Rule:          "**",
+			BranchName:    "release/v1.16",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "main",
+			BranchName:    "main",
+			ExpectedMatch: true,
+		},
+		{
+			Rule:          "master",
+			BranchName:    "main",
+			ExpectedMatch: false,
+		},
+	}
+
+	for _, kase := range kases {
+		pb := ProtectedBranch{RuleName: kase.Rule}
+		assert.EqualValues(t, kase.ExpectedMatch, pb.Match(kase.BranchName), "%s - %s", kase.BranchName, kase.Rule)
+	}
+}
diff --git a/models/git/protected_tag.go b/models/git/protected_tag.go
new file mode 100644
index 0000000..9a6646c
--- /dev/null
+++ b/models/git/protected_tag.go
@@ -0,0 +1,150 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"regexp"
+	"slices"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/gobwas/glob"
+)
+
+// ProtectedTag struct
+type ProtectedTag struct {
+	ID               int64 `xorm:"pk autoincr"`
+	RepoID           int64
+	NamePattern      string
+	RegexPattern     *regexp.Regexp `xorm:"-"`
+	GlobPattern      glob.Glob      `xorm:"-"`
+	AllowlistUserIDs []int64        `xorm:"JSON TEXT"`
+	AllowlistTeamIDs []int64        `xorm:"JSON TEXT"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(ProtectedTag))
+}
+
+// EnsureCompiledPattern ensures the glob pattern is compiled
+func (pt *ProtectedTag) EnsureCompiledPattern() error {
+	if pt.RegexPattern != nil || pt.GlobPattern != nil {
+		return nil
+	}
+
+	var err error
+	if len(pt.NamePattern) >= 2 && strings.HasPrefix(pt.NamePattern, "/") && strings.HasSuffix(pt.NamePattern, "/") {
+		pt.RegexPattern, err = regexp.Compile(pt.NamePattern[1 : len(pt.NamePattern)-1])
+	} else {
+		pt.GlobPattern, err = glob.Compile(pt.NamePattern)
+	}
+	return err
+}
+
+func (pt *ProtectedTag) matchString(name string) bool {
+	if pt.RegexPattern != nil {
+		return pt.RegexPattern.MatchString(name)
+	}
+	return pt.GlobPattern.Match(name)
+}
+
+// InsertProtectedTag inserts a protected tag to database
+func InsertProtectedTag(ctx context.Context, pt *ProtectedTag) error {
+	_, err := db.GetEngine(ctx).Insert(pt)
+	return err
+}
+
+// UpdateProtectedTag updates the protected tag
+func UpdateProtectedTag(ctx context.Context, pt *ProtectedTag) error {
+	_, err := db.GetEngine(ctx).ID(pt.ID).AllCols().Update(pt)
+	return err
+}
+
+// DeleteProtectedTag deletes a protected tag by ID
+func DeleteProtectedTag(ctx context.Context, pt *ProtectedTag) error {
+	_, err := db.GetEngine(ctx).ID(pt.ID).Delete(&ProtectedTag{})
+	return err
+}
+
+// IsUserAllowedModifyTag returns true if the user is allowed to modify the tag
+func IsUserAllowedModifyTag(ctx context.Context, pt *ProtectedTag, userID int64) (bool, error) {
+	if slices.Contains(pt.AllowlistUserIDs, userID) {
+		return true, nil
+	}
+
+	if len(pt.AllowlistTeamIDs) == 0 {
+		return false, nil
+	}
+
+	in, err := organization.IsUserInTeams(ctx, userID, pt.AllowlistTeamIDs)
+	if err != nil {
+		return false, err
+	}
+	return in, nil
+}
+
+// GetProtectedTags gets all protected tags of the repository
+func GetProtectedTags(ctx context.Context, repoID int64) ([]*ProtectedTag, error) {
+	tags := make([]*ProtectedTag, 0)
+	return tags, db.GetEngine(ctx).Find(&tags, &ProtectedTag{RepoID: repoID})
+}
+
+// GetProtectedTagByID gets the protected tag with the specific id
+func GetProtectedTagByID(ctx context.Context, id int64) (*ProtectedTag, error) {
+	tag := new(ProtectedTag)
+	has, err := db.GetEngine(ctx).ID(id).Get(tag)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, nil
+	}
+	return tag, nil
+}
+
+// GetProtectedTagByNamePattern gets protected tag by name_pattern
+func GetProtectedTagByNamePattern(ctx context.Context, repoID int64, pattern string) (*ProtectedTag, error) {
+	tag := &ProtectedTag{NamePattern: pattern, RepoID: repoID}
+	has, err := db.GetEngine(ctx).Get(tag)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, nil
+	}
+	return tag, nil
+}
+
+// IsUserAllowedToControlTag checks if a user can control the specific tag.
+// It returns true if the tag name is not protected or the user is allowed to control it.
+func IsUserAllowedToControlTag(ctx context.Context, tags []*ProtectedTag, tagName string, userID int64) (bool, error) {
+	isAllowed := true
+	for _, tag := range tags {
+		err := tag.EnsureCompiledPattern()
+		if err != nil {
+			return false, err
+		}
+
+		if !tag.matchString(tagName) {
+			continue
+		}
+
+		isAllowed, err = IsUserAllowedModifyTag(ctx, tag, userID)
+		if err != nil {
+			return false, err
+		}
+		if isAllowed {
+			break
+		}
+	}
+
+	return isAllowed, nil
+}
diff --git a/models/git/protected_tag_test.go b/models/git/protected_tag_test.go
new file mode 100644
index 0000000..796e159
--- /dev/null
+++ b/models/git/protected_tag_test.go
@@ -0,0 +1,166 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsUserAllowed(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	pt := &git_model.ProtectedTag{}
+	allowed, err := git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 1)
+	require.NoError(t, err)
+	assert.False(t, allowed)
+
+	pt = &git_model.ProtectedTag{
+		AllowlistUserIDs: []int64{1},
+	}
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 1)
+	require.NoError(t, err)
+	assert.True(t, allowed)
+
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 2)
+	require.NoError(t, err)
+	assert.False(t, allowed)
+
+	pt = &git_model.ProtectedTag{
+		AllowlistTeamIDs: []int64{1},
+	}
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 1)
+	require.NoError(t, err)
+	assert.False(t, allowed)
+
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 2)
+	require.NoError(t, err)
+	assert.True(t, allowed)
+
+	pt = &git_model.ProtectedTag{
+		AllowlistUserIDs: []int64{1},
+		AllowlistTeamIDs: []int64{1},
+	}
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 1)
+	require.NoError(t, err)
+	assert.True(t, allowed)
+
+	allowed, err = git_model.IsUserAllowedModifyTag(db.DefaultContext, pt, 2)
+	require.NoError(t, err)
+	assert.True(t, allowed)
+}
+
+func TestIsUserAllowedToControlTag(t *testing.T) {
+	cases := []struct {
+		name    string
+		userid  int64
+		allowed bool
+	}{
+		{
+			name:    "test",
+			userid:  1,
+			allowed: true,
+		},
+		{
+			name:    "test",
+			userid:  3,
+			allowed: true,
+		},
+		{
+			name:    "gitea",
+			userid:  1,
+			allowed: true,
+		},
+		{
+			name:    "gitea",
+			userid:  3,
+			allowed: false,
+		},
+		{
+			name:    "test-gitea",
+			userid:  1,
+			allowed: true,
+		},
+		{
+			name:    "test-gitea",
+			userid:  3,
+			allowed: false,
+		},
+		{
+			name:    "gitea-test",
+			userid:  1,
+			allowed: true,
+		},
+		{
+			name:    "gitea-test",
+			userid:  3,
+			allowed: true,
+		},
+		{
+			name:    "v-1",
+			userid:  1,
+			allowed: false,
+		},
+		{
+			name:    "v-1",
+			userid:  2,
+			allowed: true,
+		},
+		{
+			name:    "release",
+			userid:  1,
+			allowed: false,
+		},
+	}
+
+	t.Run("Glob", func(t *testing.T) {
+		protectedTags := []*git_model.ProtectedTag{
+			{
+				NamePattern:      `*gitea`,
+				AllowlistUserIDs: []int64{1},
+			},
+			{
+				NamePattern:      `v-*`,
+				AllowlistUserIDs: []int64{2},
+			},
+			{
+				NamePattern: "release",
+			},
+		}
+
+		for n, c := range cases {
+			isAllowed, err := git_model.IsUserAllowedToControlTag(db.DefaultContext, protectedTags, c.name, c.userid)
+			require.NoError(t, err)
+			assert.Equal(t, c.allowed, isAllowed, "case %d: error should match", n)
+		}
+	})
+
+	t.Run("Regex", func(t *testing.T) {
+		protectedTags := []*git_model.ProtectedTag{
+			{
+				NamePattern:      `/gitea\z/`,
+				AllowlistUserIDs: []int64{1},
+			},
+			{
+				NamePattern:      `/\Av-/`,
+				AllowlistUserIDs: []int64{2},
+			},
+			{
+				NamePattern: "/release/",
+			},
+		}
+
+		for n, c := range cases {
+			isAllowed, err := git_model.IsUserAllowedToControlTag(db.DefaultContext, protectedTags, c.name, c.userid)
+			require.NoError(t, err)
+			assert.Equal(t, c.allowed, isAllowed, "case %d: error should match", n)
+		}
+	})
+}
diff --git a/models/issues/TestGetUIDsAndStopwatch/stopwatch.yml b/models/issues/TestGetUIDsAndStopwatch/stopwatch.yml
new file mode 100644
index 0000000..f564e4b
--- /dev/null
+++ b/models/issues/TestGetUIDsAndStopwatch/stopwatch.yml
@@ -0,0 +1,11 @@
+-
+  id: 3
+  user_id: 1
+  issue_id: 2
+  created_unix: 1500988004
+
+-
+  id: 4
+  user_id: 3
+  issue_id: 0
+  created_unix: 1500988003
diff --git a/models/issues/assignees.go b/models/issues/assignees.go
new file mode 100644
index 0000000..a83cb25
--- /dev/null
+++ b/models/issues/assignees.go
@@ -0,0 +1,177 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// IssueAssignees saves all issue assignees
+type IssueAssignees struct {
+	ID         int64 `xorm:"pk autoincr"`
+	AssigneeID int64 `xorm:"INDEX"`
+	IssueID    int64 `xorm:"INDEX"`
+}
+
+func init() {
+	db.RegisterModel(new(IssueAssignees))
+}
+
+// LoadAssignees load assignees of this issue.
+func (issue *Issue) LoadAssignees(ctx context.Context) (err error) {
+	if issue.isAssigneeLoaded || len(issue.Assignees) > 0 {
+		return nil
+	}
+
+	// Reset maybe preexisting assignees
+	issue.Assignees = []*user_model.User{}
+	issue.Assignee = nil
+
+	if err = db.GetEngine(ctx).Table("`user`").
+		Join("INNER", "issue_assignees", "assignee_id = `user`.id").
+		Where("issue_assignees.issue_id = ?", issue.ID).
+		Find(&issue.Assignees); err != nil {
+		return err
+	}
+
+	issue.isAssigneeLoaded = true
+	// Check if we have at least one assignee and if yes put it in as `Assignee`
+	if len(issue.Assignees) > 0 {
+		issue.Assignee = issue.Assignees[0]
+	}
+	return nil
+}
+
+// GetAssigneeIDsByIssue returns the IDs of users assigned to an issue
+// but skips joining with `user` for performance reasons.
+// User permissions must be verified elsewhere if required.
+func GetAssigneeIDsByIssue(ctx context.Context, issueID int64) ([]int64, error) {
+	userIDs := make([]int64, 0, 5)
+	return userIDs, db.GetEngine(ctx).
+		Table("issue_assignees").
+		Cols("assignee_id").
+		Where("issue_id = ?", issueID).
+		Distinct("assignee_id").
+		Find(&userIDs)
+}
+
+// IsUserAssignedToIssue returns true when the user is assigned to the issue
+func IsUserAssignedToIssue(ctx context.Context, issue *Issue, user *user_model.User) (isAssigned bool, err error) {
+	return db.Exist[IssueAssignees](ctx, builder.Eq{"assignee_id": user.ID, "issue_id": issue.ID})
+}
+
+// ToggleIssueAssignee changes a user between assigned and not assigned for this issue, and make issue comment for it.
+func ToggleIssueAssignee(ctx context.Context, issue *Issue, doer *user_model.User, assigneeID int64) (removed bool, comment *Comment, err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return false, nil, err
+	}
+	defer committer.Close()
+
+	removed, comment, err = toggleIssueAssignee(ctx, issue, doer, assigneeID, false)
+	if err != nil {
+		return false, nil, err
+	}
+
+	if err := committer.Commit(); err != nil {
+		return false, nil, err
+	}
+
+	return removed, comment, nil
+}
+
+func toggleIssueAssignee(ctx context.Context, issue *Issue, doer *user_model.User, assigneeID int64, isCreate bool) (removed bool, comment *Comment, err error) {
+	removed, err = toggleUserAssignee(ctx, issue, assigneeID)
+	if err != nil {
+		return false, nil, fmt.Errorf("UpdateIssueUserByAssignee: %w", err)
+	}
+
+	// Repo infos
+	if err = issue.LoadRepo(ctx); err != nil {
+		return false, nil, fmt.Errorf("loadRepo: %w", err)
+	}
+
+	opts := &CreateCommentOptions{
+		Type:            CommentTypeAssignees,
+		Doer:            doer,
+		Repo:            issue.Repo,
+		Issue:           issue,
+		RemovedAssignee: removed,
+		AssigneeID:      assigneeID,
+	}
+	// Comment
+	comment, err = CreateComment(ctx, opts)
+	if err != nil {
+		return false, nil, fmt.Errorf("createComment: %w", err)
+	}
+
+	// if pull request is in the middle of creation - don't call webhook
+	if isCreate {
+		return removed, comment, err
+	}
+
+	return removed, comment, nil
+}
+
+// toggles user assignee state in database
+func toggleUserAssignee(ctx context.Context, issue *Issue, assigneeID int64) (removed bool, err error) {
+	// Check if the user exists
+	assignee, err := user_model.GetUserByID(ctx, assigneeID)
+	if err != nil {
+		return false, err
+	}
+
+	// Check if the submitted user is already assigned, if yes delete him otherwise add him
+	found := false
+	i := 0
+	for ; i < len(issue.Assignees); i++ {
+		if issue.Assignees[i].ID == assigneeID {
+			found = true
+			break
+		}
+	}
+
+	assigneeIn := IssueAssignees{AssigneeID: assigneeID, IssueID: issue.ID}
+	if found {
+		issue.Assignees = append(issue.Assignees[:i], issue.Assignees[i+1:]...)
+		_, err = db.DeleteByBean(ctx, &assigneeIn)
+		if err != nil {
+			return found, err
+		}
+	} else {
+		issue.Assignees = append(issue.Assignees, assignee)
+		if err = db.Insert(ctx, &assigneeIn); err != nil {
+			return found, err
+		}
+	}
+
+	return found, nil
+}
+
+// MakeIDsFromAPIAssigneesToAdd returns an array with all assignee IDs
+func MakeIDsFromAPIAssigneesToAdd(ctx context.Context, oneAssignee string, multipleAssignees []string) (assigneeIDs []int64, err error) {
+	var requestAssignees []string
+
+	// Keeping the old assigning method for compatibility reasons
+	if oneAssignee != "" && !util.SliceContainsString(multipleAssignees, oneAssignee) {
+		requestAssignees = append(requestAssignees, oneAssignee)
+	}
+
+	// Prevent empty assignees
+	if len(multipleAssignees) > 0 && multipleAssignees[0] != "" {
+		requestAssignees = append(requestAssignees, multipleAssignees...)
+	}
+
+	// Get the IDs of all assignees
+	assigneeIDs, err = user_model.GetUserIDsByNames(ctx, requestAssignees, false)
+
+	return assigneeIDs, err
+}
diff --git a/models/issues/assignees_test.go b/models/issues/assignees_test.go
new file mode 100644
index 0000000..47fb81a
--- /dev/null
+++ b/models/issues/assignees_test.go
@@ -0,0 +1,95 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUpdateAssignee(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Fake issue with assignees
+	issue, err := issues_model.GetIssueByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	err = issue.LoadAttributes(db.DefaultContext)
+	require.NoError(t, err)
+
+	// Assign multiple users
+	user2, err := user_model.GetUserByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+	_, _, err = issues_model.ToggleIssueAssignee(db.DefaultContext, issue, &user_model.User{ID: 1}, user2.ID)
+	require.NoError(t, err)
+
+	org3, err := user_model.GetUserByID(db.DefaultContext, 3)
+	require.NoError(t, err)
+	_, _, err = issues_model.ToggleIssueAssignee(db.DefaultContext, issue, &user_model.User{ID: 1}, org3.ID)
+	require.NoError(t, err)
+
+	user1, err := user_model.GetUserByID(db.DefaultContext, 1) // This user is already assigned (see the definition in fixtures), so running  UpdateAssignee should unassign him
+	require.NoError(t, err)
+	_, _, err = issues_model.ToggleIssueAssignee(db.DefaultContext, issue, &user_model.User{ID: 1}, user1.ID)
+	require.NoError(t, err)
+
+	// Check if he got removed
+	isAssigned, err := issues_model.IsUserAssignedToIssue(db.DefaultContext, issue, user1)
+	require.NoError(t, err)
+	assert.False(t, isAssigned)
+
+	// Check if they're all there
+	err = issue.LoadAssignees(db.DefaultContext)
+	require.NoError(t, err)
+
+	var expectedAssignees []*user_model.User
+	expectedAssignees = append(expectedAssignees, user2, org3)
+
+	for in, assignee := range issue.Assignees {
+		assert.Equal(t, assignee.ID, expectedAssignees[in].ID)
+	}
+
+	// Check if the user is assigned
+	isAssigned, err = issues_model.IsUserAssignedToIssue(db.DefaultContext, issue, user2)
+	require.NoError(t, err)
+	assert.True(t, isAssigned)
+
+	// This user should not be assigned
+	isAssigned, err = issues_model.IsUserAssignedToIssue(db.DefaultContext, issue, &user_model.User{ID: 4})
+	require.NoError(t, err)
+	assert.False(t, isAssigned)
+}
+
+func TestMakeIDsFromAPIAssigneesToAdd(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	_ = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	_ = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	IDs, err := issues_model.MakeIDsFromAPIAssigneesToAdd(db.DefaultContext, "", []string{""})
+	require.NoError(t, err)
+	assert.Equal(t, []int64{}, IDs)
+
+	_, err = issues_model.MakeIDsFromAPIAssigneesToAdd(db.DefaultContext, "", []string{"none_existing_user"})
+	require.Error(t, err)
+
+	IDs, err = issues_model.MakeIDsFromAPIAssigneesToAdd(db.DefaultContext, "user1", []string{"user1"})
+	require.NoError(t, err)
+	assert.Equal(t, []int64{1}, IDs)
+
+	IDs, err = issues_model.MakeIDsFromAPIAssigneesToAdd(db.DefaultContext, "user2", []string{""})
+	require.NoError(t, err)
+	assert.Equal(t, []int64{2}, IDs)
+
+	IDs, err = issues_model.MakeIDsFromAPIAssigneesToAdd(db.DefaultContext, "", []string{"user1", "user2"})
+	require.NoError(t, err)
+	assert.Equal(t, []int64{1, 2}, IDs)
+}
diff --git a/models/issues/comment.go b/models/issues/comment.go
new file mode 100644
index 0000000..d53e5f5
--- /dev/null
+++ b/models/issues/comment.go
@@ -0,0 +1,1333 @@
+// Copyright 2018 The Gitea Authors.
+// Copyright 2016 The Gogs Authors.
+// All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"strconv"
+	"unicode/utf8"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/organization"
+	project_model "code.gitea.io/gitea/models/project"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/references"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/translation"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrCommentNotExist represents a "CommentNotExist" kind of error.
+type ErrCommentNotExist struct {
+	ID      int64
+	IssueID int64
+}
+
+// IsErrCommentNotExist checks if an error is a ErrCommentNotExist.
+func IsErrCommentNotExist(err error) bool {
+	_, ok := err.(ErrCommentNotExist)
+	return ok
+}
+
+func (err ErrCommentNotExist) Error() string {
+	return fmt.Sprintf("comment does not exist [id: %d, issue_id: %d]", err.ID, err.IssueID)
+}
+
+func (err ErrCommentNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+var ErrCommentAlreadyChanged = util.NewInvalidArgumentErrorf("the comment is already changed")
+
+// CommentType defines whether a comment is just a simple comment, an action (like close) or a reference.
+type CommentType int
+
+// CommentTypeUndefined is used to search for comments of any type
+const CommentTypeUndefined CommentType = -1
+
+const (
+	CommentTypeComment CommentType = iota // 0 Plain comment, can be associated with a commit (CommitID > 0) and a line (LineNum > 0)
+
+	CommentTypeReopen // 1
+	CommentTypeClose  // 2
+
+	CommentTypeIssueRef   // 3 References.
+	CommentTypeCommitRef  // 4 Reference from a commit (not part of a pull request)
+	CommentTypeCommentRef // 5 Reference from a comment
+	CommentTypePullRef    // 6 Reference from a pull request
+
+	CommentTypeLabel        // 7 Labels changed
+	CommentTypeMilestone    // 8 Milestone changed
+	CommentTypeAssignees    // 9 Assignees changed
+	CommentTypeChangeTitle  // 10 Change Title
+	CommentTypeDeleteBranch // 11 Delete Branch
+
+	CommentTypeStartTracking    // 12 Start a stopwatch for time tracking
+	CommentTypeStopTracking     // 13 Stop a stopwatch for time tracking
+	CommentTypeAddTimeManual    // 14 Add time manual for time tracking
+	CommentTypeCancelTracking   // 15 Cancel a stopwatch for time tracking
+	CommentTypeAddedDeadline    // 16 Added a due date
+	CommentTypeModifiedDeadline // 17 Modified the due date
+	CommentTypeRemovedDeadline  // 18 Removed a due date
+
+	CommentTypeAddDependency    // 19 Dependency added
+	CommentTypeRemoveDependency // 20 Dependency removed
+
+	CommentTypeCode   // 21 Comment a line of code
+	CommentTypeReview // 22 Reviews a pull request by giving general feedback
+
+	CommentTypeLock   // 23 Lock an issue, giving only collaborators access
+	CommentTypeUnlock // 24 Unlocks a previously locked issue
+
+	CommentTypeChangeTargetBranch // 25 Change pull request's target branch
+
+	CommentTypeDeleteTimeManual // 26 Delete time manual for time tracking
+
+	CommentTypeReviewRequest   // 27 add or remove Request from one
+	CommentTypeMergePull       // 28 merge pull request
+	CommentTypePullRequestPush // 29 push to PR head branch
+
+	CommentTypeProject       // 30 Project changed
+	CommentTypeProjectColumn // 31 Project column changed
+
+	CommentTypeDismissReview // 32 Dismiss Review
+
+	CommentTypeChangeIssueRef // 33 Change issue ref
+
+	CommentTypePRScheduledToAutoMerge   // 34 pr was scheduled to auto merge when checks succeed
+	CommentTypePRUnScheduledToAutoMerge // 35 pr was un scheduled to auto merge when checks succeed
+
+	CommentTypePin   // 36 pin Issue
+	CommentTypeUnpin // 37 unpin Issue
+)
+
+var commentStrings = []string{
+	"comment",
+	"reopen",
+	"close",
+	"issue_ref",
+	"commit_ref",
+	"comment_ref",
+	"pull_ref",
+	"label",
+	"milestone",
+	"assignees",
+	"change_title",
+	"delete_branch",
+	"start_tracking",
+	"stop_tracking",
+	"add_time_manual",
+	"cancel_tracking",
+	"added_deadline",
+	"modified_deadline",
+	"removed_deadline",
+	"add_dependency",
+	"remove_dependency",
+	"code",
+	"review",
+	"lock",
+	"unlock",
+	"change_target_branch",
+	"delete_time_manual",
+	"review_request",
+	"merge_pull",
+	"pull_push",
+	"project",
+	"project_board", // FIXME: the name should be project_column
+	"dismiss_review",
+	"change_issue_ref",
+	"pull_scheduled_merge",
+	"pull_cancel_scheduled_merge",
+	"pin",
+	"unpin",
+}
+
+func (t CommentType) String() string {
+	return commentStrings[t]
+}
+
+func AsCommentType(typeName string) CommentType {
+	for index, name := range commentStrings {
+		if typeName == name {
+			return CommentType(index)
+		}
+	}
+	return CommentTypeUndefined
+}
+
+func (t CommentType) HasContentSupport() bool {
+	switch t {
+	case CommentTypeComment, CommentTypeCode, CommentTypeReview, CommentTypeDismissReview:
+		return true
+	}
+	return false
+}
+
+func (t CommentType) HasAttachmentSupport() bool {
+	switch t {
+	case CommentTypeComment, CommentTypeCode, CommentTypeReview:
+		return true
+	}
+	return false
+}
+
+func (t CommentType) HasMailReplySupport() bool {
+	switch t {
+	case CommentTypeComment, CommentTypeCode, CommentTypeReview, CommentTypeDismissReview, CommentTypeReopen, CommentTypeClose, CommentTypeMergePull, CommentTypeAssignees:
+		return true
+	}
+	return false
+}
+
+// RoleInRepo presents the user's participation in the repo
+type RoleInRepo string
+
+// RoleDescriptor defines comment "role" tags
+type RoleDescriptor struct {
+	IsPoster   bool
+	RoleInRepo RoleInRepo
+}
+
+// Enumerate all the role tags.
+const (
+	RoleRepoOwner                RoleInRepo = "owner"
+	RoleRepoMember               RoleInRepo = "member"
+	RoleRepoCollaborator         RoleInRepo = "collaborator"
+	RoleRepoFirstTimeContributor RoleInRepo = "first_time_contributor"
+	RoleRepoContributor          RoleInRepo = "contributor"
+)
+
+// LocaleString returns the locale string name of the role
+func (r RoleInRepo) LocaleString(lang translation.Locale) string {
+	return lang.TrString("repo.issues.role." + string(r))
+}
+
+// LocaleHelper returns the locale tooltip of the role
+func (r RoleInRepo) LocaleHelper(lang translation.Locale) string {
+	return lang.TrString("repo.issues.role." + string(r) + "_helper")
+}
+
+// Comment represents a comment in commit and issue page.
+type Comment struct {
+	ID               int64            `xorm:"pk autoincr"`
+	Type             CommentType      `xorm:"INDEX"`
+	PosterID         int64            `xorm:"INDEX"`
+	Poster           *user_model.User `xorm:"-"`
+	OriginalAuthor   string
+	OriginalAuthorID int64
+	IssueID          int64  `xorm:"INDEX"`
+	Issue            *Issue `xorm:"-"`
+	LabelID          int64
+	Label            *Label   `xorm:"-"`
+	AddedLabels      []*Label `xorm:"-"`
+	RemovedLabels    []*Label `xorm:"-"`
+	OldProjectID     int64
+	ProjectID        int64
+	OldProject       *project_model.Project `xorm:"-"`
+	Project          *project_model.Project `xorm:"-"`
+	OldMilestoneID   int64
+	MilestoneID      int64
+	OldMilestone     *Milestone `xorm:"-"`
+	Milestone        *Milestone `xorm:"-"`
+	TimeID           int64
+	Time             *TrackedTime `xorm:"-"`
+	AssigneeID       int64
+	RemovedAssignee  bool
+	Assignee         *user_model.User   `xorm:"-"`
+	AssigneeTeamID   int64              `xorm:"NOT NULL DEFAULT 0"`
+	AssigneeTeam     *organization.Team `xorm:"-"`
+	ResolveDoerID    int64
+	ResolveDoer      *user_model.User `xorm:"-"`
+	OldTitle         string
+	NewTitle         string
+	OldRef           string
+	NewRef           string
+	DependentIssueID int64  `xorm:"index"` // This is used by issue_service.deleteIssue
+	DependentIssue   *Issue `xorm:"-"`
+
+	CommitID        int64
+	Line            int64 // - previous line / + proposed line
+	TreePath        string
+	Content         string        `xorm:"LONGTEXT"`
+	ContentVersion  int           `xorm:"NOT NULL DEFAULT 0"`
+	RenderedContent template.HTML `xorm:"-"`
+
+	// Path represents the 4 lines of code cemented by this comment
+	Patch       string `xorm:"-"`
+	PatchQuoted string `xorm:"LONGTEXT patch"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+
+	// Reference issue in commit message
+	CommitSHA string `xorm:"VARCHAR(64)"`
+
+	Attachments []*repo_model.Attachment `xorm:"-"`
+	Reactions   ReactionList             `xorm:"-"`
+
+	// For view issue page.
+	ShowRole RoleDescriptor `xorm:"-"`
+
+	Review      *Review `xorm:"-"`
+	ReviewID    int64   `xorm:"index"`
+	Invalidated bool
+
+	// Reference an issue or pull from another comment, issue or PR
+	// All information is about the origin of the reference
+	RefRepoID    int64                 `xorm:"index"` // Repo where the referencing
+	RefIssueID   int64                 `xorm:"index"`
+	RefCommentID int64                 `xorm:"index"`    // 0 if origin is Issue title or content (or PR's)
+	RefAction    references.XRefAction `xorm:"SMALLINT"` // What happens if RefIssueID resolves
+	RefIsPull    bool
+
+	RefRepo    *repo_model.Repository `xorm:"-"`
+	RefIssue   *Issue                 `xorm:"-"`
+	RefComment *Comment               `xorm:"-"`
+
+	Commits     []*git_model.SignCommitWithStatuses `xorm:"-"`
+	OldCommit   string                              `xorm:"-"`
+	NewCommit   string                              `xorm:"-"`
+	CommitsNum  int64                               `xorm:"-"`
+	IsForcePush bool                                `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(Comment))
+}
+
+// PushActionContent is content of push pull comment
+type PushActionContent struct {
+	IsForcePush bool     `json:"is_force_push"`
+	CommitIDs   []string `json:"commit_ids"`
+}
+
+// LoadIssue loads the issue reference for the comment
+func (c *Comment) LoadIssue(ctx context.Context) (err error) {
+	if c.Issue != nil {
+		return nil
+	}
+	c.Issue, err = GetIssueByID(ctx, c.IssueID)
+	return err
+}
+
+// BeforeInsert will be invoked by XORM before inserting a record
+func (c *Comment) BeforeInsert() {
+	c.PatchQuoted = c.Patch
+	if !utf8.ValidString(c.Patch) {
+		c.PatchQuoted = strconv.Quote(c.Patch)
+	}
+}
+
+// BeforeUpdate will be invoked by XORM before updating a record
+func (c *Comment) BeforeUpdate() {
+	c.PatchQuoted = c.Patch
+	if !utf8.ValidString(c.Patch) {
+		c.PatchQuoted = strconv.Quote(c.Patch)
+	}
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (c *Comment) AfterLoad() {
+	c.Patch = c.PatchQuoted
+	if len(c.PatchQuoted) > 0 && c.PatchQuoted[0] == '"' {
+		unquoted, err := strconv.Unquote(c.PatchQuoted)
+		if err == nil {
+			c.Patch = unquoted
+		}
+	}
+}
+
+// LoadPoster loads comment poster
+func (c *Comment) LoadPoster(ctx context.Context) (err error) {
+	if c.Poster != nil {
+		return nil
+	}
+
+	c.Poster, err = user_model.GetPossibleUserByID(ctx, c.PosterID)
+	if err != nil {
+		if user_model.IsErrUserNotExist(err) {
+			c.PosterID = user_model.GhostUserID
+			c.Poster = user_model.NewGhostUser()
+		} else {
+			log.Error("getUserByID[%d]: %v", c.ID, err)
+		}
+	}
+	return err
+}
+
+// AfterDelete is invoked from XORM after the object is deleted.
+func (c *Comment) AfterDelete(ctx context.Context) {
+	if c.ID <= 0 {
+		return
+	}
+
+	_, err := repo_model.DeleteAttachmentsByComment(ctx, c.ID, true)
+	if err != nil {
+		log.Info("Could not delete files for comment %d on issue #%d: %s", c.ID, c.IssueID, err)
+	}
+}
+
+// HTMLURL formats a URL-string to the issue-comment
+func (c *Comment) HTMLURL(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+	return c.Issue.HTMLURL() + c.hashLink(ctx)
+}
+
+// Link formats a relative URL-string to the issue-comment
+func (c *Comment) Link(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+	return c.Issue.Link() + c.hashLink(ctx)
+}
+
+func (c *Comment) hashLink(ctx context.Context) string {
+	if c.Type == CommentTypeCode {
+		if c.ReviewID == 0 {
+			return "/files#" + c.HashTag()
+		}
+		if c.Review == nil {
+			if err := c.LoadReview(ctx); err != nil {
+				log.Warn("LoadReview(%d): %v", c.ReviewID, err)
+				return "/files#" + c.HashTag()
+			}
+		}
+		if c.Review.Type <= ReviewTypePending {
+			return "/files#" + c.HashTag()
+		}
+	}
+	return "#" + c.HashTag()
+}
+
+// APIURL formats a API-string to the issue-comment
+func (c *Comment) APIURL(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+
+	return fmt.Sprintf("%s/issues/comments/%d", c.Issue.Repo.APIURL(), c.ID)
+}
+
+// IssueURL formats a URL-string to the issue
+func (c *Comment) IssueURL(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+
+	if c.Issue.IsPull {
+		return ""
+	}
+
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+	return c.Issue.HTMLURL()
+}
+
+// PRURL formats a URL-string to the pull-request
+func (c *Comment) PRURL(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+
+	if !c.Issue.IsPull {
+		return ""
+	}
+	return c.Issue.HTMLURL()
+}
+
+// CommentHashTag returns unique hash tag for comment id.
+func CommentHashTag(id int64) string {
+	return fmt.Sprintf("issuecomment-%d", id)
+}
+
+// HashTag returns unique hash tag for comment.
+func (c *Comment) HashTag() string {
+	return CommentHashTag(c.ID)
+}
+
+// EventTag returns unique event hash tag for comment.
+func (c *Comment) EventTag() string {
+	return fmt.Sprintf("event-%d", c.ID)
+}
+
+// LoadLabel if comment.Type is CommentTypeLabel, then load Label
+func (c *Comment) LoadLabel(ctx context.Context) error {
+	var label Label
+	has, err := db.GetEngine(ctx).ID(c.LabelID).Get(&label)
+	if err != nil {
+		return err
+	} else if has {
+		c.Label = &label
+	} else {
+		// Ignore Label is deleted, but not clear this table
+		log.Warn("Commit %d cannot load label %d", c.ID, c.LabelID)
+	}
+
+	return nil
+}
+
+// LoadProject if comment.Type is CommentTypeProject, then load project.
+func (c *Comment) LoadProject(ctx context.Context) error {
+	if c.OldProjectID > 0 {
+		var oldProject project_model.Project
+		has, err := db.GetEngine(ctx).ID(c.OldProjectID).Get(&oldProject)
+		if err != nil {
+			return err
+		} else if has {
+			c.OldProject = &oldProject
+		}
+	}
+
+	if c.ProjectID > 0 {
+		var project project_model.Project
+		has, err := db.GetEngine(ctx).ID(c.ProjectID).Get(&project)
+		if err != nil {
+			return err
+		} else if has {
+			c.Project = &project
+		}
+	}
+
+	return nil
+}
+
+// LoadMilestone if comment.Type is CommentTypeMilestone, then load milestone
+func (c *Comment) LoadMilestone(ctx context.Context) error {
+	if c.OldMilestoneID > 0 {
+		var oldMilestone Milestone
+		has, err := db.GetEngine(ctx).ID(c.OldMilestoneID).Get(&oldMilestone)
+		if err != nil {
+			return err
+		} else if has {
+			c.OldMilestone = &oldMilestone
+		}
+	}
+
+	if c.MilestoneID > 0 {
+		var milestone Milestone
+		has, err := db.GetEngine(ctx).ID(c.MilestoneID).Get(&milestone)
+		if err != nil {
+			return err
+		} else if has {
+			c.Milestone = &milestone
+		}
+	}
+	return nil
+}
+
+// LoadAttachments loads attachments (it never returns error, the error during `GetAttachmentsByCommentIDCtx` is ignored)
+func (c *Comment) LoadAttachments(ctx context.Context) error {
+	if len(c.Attachments) > 0 {
+		return nil
+	}
+
+	var err error
+	c.Attachments, err = repo_model.GetAttachmentsByCommentID(ctx, c.ID)
+	if err != nil {
+		log.Error("getAttachmentsByCommentID[%d]: %v", c.ID, err)
+	}
+	return nil
+}
+
+// UpdateAttachments update attachments by UUIDs for the comment
+func (c *Comment) UpdateAttachments(ctx context.Context, uuids []string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	attachments, err := repo_model.GetAttachmentsByUUIDs(ctx, uuids)
+	if err != nil {
+		return fmt.Errorf("getAttachmentsByUUIDs [uuids: %v]: %w", uuids, err)
+	}
+	for i := 0; i < len(attachments); i++ {
+		attachments[i].IssueID = c.IssueID
+		attachments[i].CommentID = c.ID
+		if err := repo_model.UpdateAttachment(ctx, attachments[i]); err != nil {
+			return fmt.Errorf("update attachment [id: %d]: %w", attachments[i].ID, err)
+		}
+	}
+	return committer.Commit()
+}
+
+// LoadAssigneeUserAndTeam if comment.Type is CommentTypeAssignees, then load assignees
+func (c *Comment) LoadAssigneeUserAndTeam(ctx context.Context) error {
+	var err error
+
+	if c.AssigneeID > 0 && c.Assignee == nil {
+		c.Assignee, err = user_model.GetUserByID(ctx, c.AssigneeID)
+		if err != nil {
+			if !user_model.IsErrUserNotExist(err) {
+				return err
+			}
+			c.Assignee = user_model.NewGhostUser()
+		}
+	} else if c.AssigneeTeamID > 0 && c.AssigneeTeam == nil {
+		if err = c.LoadIssue(ctx); err != nil {
+			return err
+		}
+
+		if err = c.Issue.LoadRepo(ctx); err != nil {
+			return err
+		}
+
+		if err = c.Issue.Repo.LoadOwner(ctx); err != nil {
+			return err
+		}
+
+		if c.Issue.Repo.Owner.IsOrganization() {
+			c.AssigneeTeam, err = organization.GetTeamByID(ctx, c.AssigneeTeamID)
+			if err != nil && !organization.IsErrTeamNotExist(err) {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// LoadResolveDoer if comment.Type is CommentTypeCode and ResolveDoerID not zero, then load resolveDoer
+func (c *Comment) LoadResolveDoer(ctx context.Context) (err error) {
+	if c.ResolveDoerID == 0 || c.Type != CommentTypeCode {
+		return nil
+	}
+	c.ResolveDoer, err = user_model.GetUserByID(ctx, c.ResolveDoerID)
+	if err != nil {
+		if user_model.IsErrUserNotExist(err) {
+			c.ResolveDoer = user_model.NewGhostUser()
+			err = nil
+		}
+	}
+	return err
+}
+
+// IsResolved check if an code comment is resolved
+func (c *Comment) IsResolved() bool {
+	return c.ResolveDoerID != 0 && c.Type == CommentTypeCode
+}
+
+// LoadDepIssueDetails loads Dependent Issue Details
+func (c *Comment) LoadDepIssueDetails(ctx context.Context) (err error) {
+	if c.DependentIssueID <= 0 || c.DependentIssue != nil {
+		return nil
+	}
+	c.DependentIssue, err = GetIssueByID(ctx, c.DependentIssueID)
+	return err
+}
+
+// LoadTime loads the associated time for a CommentTypeAddTimeManual
+func (c *Comment) LoadTime(ctx context.Context) error {
+	if c.Time != nil || c.TimeID == 0 {
+		return nil
+	}
+	var err error
+	c.Time, err = GetTrackedTimeByID(ctx, c.TimeID)
+	return err
+}
+
+// LoadReactions loads comment reactions
+func (c *Comment) LoadReactions(ctx context.Context, repo *repo_model.Repository) (err error) {
+	if c.Reactions != nil {
+		return nil
+	}
+	c.Reactions, _, err = FindReactions(ctx, FindReactionsOptions{
+		IssueID:   c.IssueID,
+		CommentID: c.ID,
+	})
+	if err != nil {
+		return err
+	}
+	// Load reaction user data
+	if _, err := c.Reactions.LoadUsers(ctx, repo); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (c *Comment) loadReview(ctx context.Context) (err error) {
+	if c.ReviewID == 0 {
+		return nil
+	}
+	if c.Review == nil {
+		if c.Review, err = GetReviewByID(ctx, c.ReviewID); err != nil {
+			// review request which has been replaced by actual reviews doesn't exist in database anymore, so ignorem them.
+			if c.Type == CommentTypeReviewRequest {
+				return nil
+			}
+			return err
+		}
+	}
+	c.Review.Issue = c.Issue
+	return nil
+}
+
+// LoadReview loads the associated review
+func (c *Comment) LoadReview(ctx context.Context) error {
+	return c.loadReview(ctx)
+}
+
+// DiffSide returns "previous" if Comment.Line is a LOC of the previous changes and "proposed" if it is a LOC of the proposed changes.
+func (c *Comment) DiffSide() string {
+	if c.Line < 0 {
+		return "previous"
+	}
+	return "proposed"
+}
+
+// UnsignedLine returns the LOC of the code comment without + or -
+func (c *Comment) UnsignedLine() uint64 {
+	if c.Line < 0 {
+		return uint64(c.Line * -1)
+	}
+	return uint64(c.Line)
+}
+
+// CodeCommentLink returns the url to a comment in code
+func (c *Comment) CodeCommentLink(ctx context.Context) string {
+	err := c.LoadIssue(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadIssue(%d): %v", c.IssueID, err)
+		return ""
+	}
+	err = c.Issue.LoadRepo(ctx)
+	if err != nil { // Silently dropping errors :unamused:
+		log.Error("loadRepo(%d): %v", c.Issue.RepoID, err)
+		return ""
+	}
+	return fmt.Sprintf("%s/files#%s", c.Issue.Link(), c.HashTag())
+}
+
+// LoadPushCommits Load push commits
+func (c *Comment) LoadPushCommits(ctx context.Context) (err error) {
+	if c.Content == "" || c.Commits != nil || c.Type != CommentTypePullRequestPush {
+		return nil
+	}
+
+	var data PushActionContent
+
+	err = json.Unmarshal([]byte(c.Content), &data)
+	if err != nil {
+		return err
+	}
+
+	c.IsForcePush = data.IsForcePush
+
+	if c.IsForcePush {
+		if len(data.CommitIDs) != 2 {
+			return nil
+		}
+		c.OldCommit = data.CommitIDs[0]
+		c.NewCommit = data.CommitIDs[1]
+	} else {
+		gitRepo, closer, err := gitrepo.RepositoryFromContextOrOpen(ctx, c.Issue.Repo)
+		if err != nil {
+			return err
+		}
+		defer closer.Close()
+
+		c.Commits = git_model.ConvertFromGitCommit(ctx, gitRepo.GetCommitsFromIDs(data.CommitIDs), c.Issue.Repo)
+		c.CommitsNum = int64(len(c.Commits))
+	}
+
+	return err
+}
+
+// CreateComment creates comment with context
+func CreateComment(ctx context.Context, opts *CreateCommentOptions) (_ *Comment, err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	e := db.GetEngine(ctx)
+	var LabelID int64
+	if opts.Label != nil {
+		LabelID = opts.Label.ID
+	}
+
+	comment := &Comment{
+		Type:             opts.Type,
+		PosterID:         opts.Doer.ID,
+		Poster:           opts.Doer,
+		IssueID:          opts.Issue.ID,
+		LabelID:          LabelID,
+		OldMilestoneID:   opts.OldMilestoneID,
+		MilestoneID:      opts.MilestoneID,
+		OldProjectID:     opts.OldProjectID,
+		ProjectID:        opts.ProjectID,
+		TimeID:           opts.TimeID,
+		RemovedAssignee:  opts.RemovedAssignee,
+		AssigneeID:       opts.AssigneeID,
+		AssigneeTeamID:   opts.AssigneeTeamID,
+		CommitID:         opts.CommitID,
+		CommitSHA:        opts.CommitSHA,
+		Line:             opts.LineNum,
+		Content:          opts.Content,
+		OldTitle:         opts.OldTitle,
+		NewTitle:         opts.NewTitle,
+		OldRef:           opts.OldRef,
+		NewRef:           opts.NewRef,
+		DependentIssueID: opts.DependentIssueID,
+		TreePath:         opts.TreePath,
+		ReviewID:         opts.ReviewID,
+		Patch:            opts.Patch,
+		RefRepoID:        opts.RefRepoID,
+		RefIssueID:       opts.RefIssueID,
+		RefCommentID:     opts.RefCommentID,
+		RefAction:        opts.RefAction,
+		RefIsPull:        opts.RefIsPull,
+		IsForcePush:      opts.IsForcePush,
+		Invalidated:      opts.Invalidated,
+	}
+	if opts.Issue.NoAutoTime {
+		// Preload the comment with the Issue containing the forced update
+		// date. This is needed to propagate those data in AddCrossReferences()
+		comment.Issue = opts.Issue
+		comment.CreatedUnix = opts.Issue.UpdatedUnix
+		comment.UpdatedUnix = opts.Issue.UpdatedUnix
+		e.NoAutoTime()
+	}
+	if _, err = e.Insert(comment); err != nil {
+		return nil, err
+	}
+
+	if err = opts.Repo.LoadOwner(ctx); err != nil {
+		return nil, err
+	}
+
+	if err = updateCommentInfos(ctx, opts, comment); err != nil {
+		return nil, err
+	}
+
+	if err = comment.AddCrossReferences(ctx, opts.Doer, false); err != nil {
+		return nil, err
+	}
+	if err = committer.Commit(); err != nil {
+		return nil, err
+	}
+	return comment, nil
+}
+
+func updateCommentInfos(ctx context.Context, opts *CreateCommentOptions, comment *Comment) (err error) {
+	// Check comment type.
+	switch opts.Type {
+	case CommentTypeCode:
+		if err = updateAttachments(ctx, opts, comment); err != nil {
+			return err
+		}
+		if comment.ReviewID != 0 {
+			if comment.Review == nil {
+				if err := comment.loadReview(ctx); err != nil {
+					return err
+				}
+			}
+			if comment.Review.Type <= ReviewTypePending {
+				return nil
+			}
+		}
+		fallthrough
+	case CommentTypeComment:
+		if _, err = db.Exec(ctx, "UPDATE `issue` SET num_comments=num_comments+1 WHERE id=?", opts.Issue.ID); err != nil {
+			return err
+		}
+		fallthrough
+	case CommentTypeReview:
+		if err = updateAttachments(ctx, opts, comment); err != nil {
+			return err
+		}
+	case CommentTypeReopen, CommentTypeClose:
+		if err = repo_model.UpdateRepoIssueNumbers(ctx, opts.Issue.RepoID, opts.Issue.IsPull, true); err != nil {
+			return err
+		}
+	}
+	// update the issue's updated_unix column
+	return UpdateIssueCols(ctx, opts.Issue, "updated_unix")
+}
+
+func updateAttachments(ctx context.Context, opts *CreateCommentOptions, comment *Comment) error {
+	attachments, err := repo_model.GetAttachmentsByUUIDs(ctx, opts.Attachments)
+	if err != nil {
+		return fmt.Errorf("getAttachmentsByUUIDs [uuids: %v]: %w", opts.Attachments, err)
+	}
+	for i := range attachments {
+		attachments[i].IssueID = opts.Issue.ID
+		attachments[i].CommentID = comment.ID
+		// No assign value could be 0, so ignore AllCols().
+		if _, err = db.GetEngine(ctx).ID(attachments[i].ID).Update(attachments[i]); err != nil {
+			return fmt.Errorf("update attachment [%d]: %w", attachments[i].ID, err)
+		}
+	}
+	comment.Attachments = attachments
+	return nil
+}
+
+func createDeadlineComment(ctx context.Context, doer *user_model.User, issue *Issue, newDeadlineUnix timeutil.TimeStamp) (*Comment, error) {
+	var content string
+	var commentType CommentType
+
+	// newDeadline = 0 means deleting
+	if newDeadlineUnix == 0 {
+		commentType = CommentTypeRemovedDeadline
+		content = issue.DeadlineUnix.FormatDate()
+	} else if issue.DeadlineUnix == 0 {
+		// Check if the new date was added or modified
+		// If the actual deadline is 0 => deadline added
+		commentType = CommentTypeAddedDeadline
+		content = newDeadlineUnix.FormatDate()
+	} else { // Otherwise modified
+		commentType = CommentTypeModifiedDeadline
+		content = newDeadlineUnix.FormatDate() + "|" + issue.DeadlineUnix.FormatDate()
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	opts := &CreateCommentOptions{
+		Type:    commentType,
+		Doer:    doer,
+		Repo:    issue.Repo,
+		Issue:   issue,
+		Content: content,
+	}
+	comment, err := CreateComment(ctx, opts)
+	if err != nil {
+		return nil, err
+	}
+	return comment, nil
+}
+
+// Creates issue dependency comment
+func createIssueDependencyComment(ctx context.Context, doer *user_model.User, issue, dependentIssue *Issue, add bool) (err error) {
+	cType := CommentTypeAddDependency
+	if !add {
+		cType = CommentTypeRemoveDependency
+	}
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	// Make two comments, one in each issue
+	opts := &CreateCommentOptions{
+		Type:             cType,
+		Doer:             doer,
+		Repo:             issue.Repo,
+		Issue:            issue,
+		DependentIssueID: dependentIssue.ID,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return err
+	}
+
+	opts = &CreateCommentOptions{
+		Type:             cType,
+		Doer:             doer,
+		Repo:             issue.Repo,
+		Issue:            dependentIssue,
+		DependentIssueID: issue.ID,
+	}
+	_, err = CreateComment(ctx, opts)
+	return err
+}
+
+// CreateCommentOptions defines options for creating comment
+type CreateCommentOptions struct {
+	Type  CommentType
+	Doer  *user_model.User
+	Repo  *repo_model.Repository
+	Issue *Issue
+	Label *Label
+
+	DependentIssueID int64
+	OldMilestoneID   int64
+	MilestoneID      int64
+	OldProjectID     int64
+	ProjectID        int64
+	TimeID           int64
+	AssigneeID       int64
+	AssigneeTeamID   int64
+	RemovedAssignee  bool
+	OldTitle         string
+	NewTitle         string
+	OldRef           string
+	NewRef           string
+	CommitID         int64
+	CommitSHA        string
+	Patch            string
+	LineNum          int64
+	TreePath         string
+	ReviewID         int64
+	Content          string
+	Attachments      []string // UUIDs of attachments
+	RefRepoID        int64
+	RefIssueID       int64
+	RefCommentID     int64
+	RefAction        references.XRefAction
+	RefIsPull        bool
+	IsForcePush      bool
+	Invalidated      bool
+}
+
+// GetCommentByID returns the comment by given ID.
+func GetCommentByID(ctx context.Context, id int64) (*Comment, error) {
+	c := new(Comment)
+	has, err := db.GetEngine(ctx).ID(id).Get(c)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrCommentNotExist{id, 0}
+	}
+	return c, nil
+}
+
+// FindCommentsOptions describes the conditions to Find comments
+type FindCommentsOptions struct {
+	db.ListOptions
+	RepoID      int64
+	IssueID     int64
+	ReviewID    int64
+	Since       int64
+	Before      int64
+	Line        int64
+	TreePath    string
+	Type        CommentType
+	IssueIDs    []int64
+	Invalidated optional.Option[bool]
+	IsPull      optional.Option[bool]
+}
+
+// ToConds implements FindOptions interface
+func (opts FindCommentsOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"issue.repo_id": opts.RepoID})
+	}
+	if opts.IssueID > 0 {
+		cond = cond.And(builder.Eq{"comment.issue_id": opts.IssueID})
+	} else if len(opts.IssueIDs) > 0 {
+		cond = cond.And(builder.In("comment.issue_id", opts.IssueIDs))
+	}
+	if opts.ReviewID > 0 {
+		cond = cond.And(builder.Eq{"comment.review_id": opts.ReviewID})
+	}
+	if opts.Since > 0 {
+		cond = cond.And(builder.Gte{"comment.updated_unix": opts.Since})
+	}
+	if opts.Before > 0 {
+		cond = cond.And(builder.Lte{"comment.updated_unix": opts.Before})
+	}
+	if opts.Type != CommentTypeUndefined {
+		cond = cond.And(builder.Eq{"comment.type": opts.Type})
+	}
+	if opts.Line != 0 {
+		cond = cond.And(builder.Eq{"comment.line": opts.Line})
+	}
+	if len(opts.TreePath) > 0 {
+		cond = cond.And(builder.Eq{"comment.tree_path": opts.TreePath})
+	}
+	if opts.Invalidated.Has() {
+		cond = cond.And(builder.Eq{"comment.invalidated": opts.Invalidated.Value()})
+	}
+	if opts.IsPull.Has() {
+		cond = cond.And(builder.Eq{"issue.is_pull": opts.IsPull.Value()})
+	}
+	return cond
+}
+
+// FindComments returns all comments according options
+func FindComments(ctx context.Context, opts *FindCommentsOptions) (CommentList, error) {
+	comments := make([]*Comment, 0, 10)
+	sess := db.GetEngine(ctx).Where(opts.ToConds())
+	if opts.RepoID > 0 || opts.IsPull.Has() {
+		sess.Join("INNER", "issue", "issue.id = comment.issue_id")
+	}
+
+	if opts.Page != 0 {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	// WARNING: If you change this order you will need to fix createCodeComment
+
+	return comments, sess.
+		Asc("comment.created_unix").
+		Asc("comment.id").
+		Find(&comments)
+}
+
+// CountComments count all comments according options by ignoring pagination
+func CountComments(ctx context.Context, opts *FindCommentsOptions) (int64, error) {
+	sess := db.GetEngine(ctx).Where(opts.ToConds())
+	if opts.RepoID > 0 {
+		sess.Join("INNER", "issue", "issue.id = comment.issue_id")
+	}
+	return sess.Count(&Comment{})
+}
+
+// UpdateCommentInvalidate updates comment invalidated column
+func UpdateCommentInvalidate(ctx context.Context, c *Comment) error {
+	_, err := db.GetEngine(ctx).ID(c.ID).Cols("invalidated").Update(c)
+	return err
+}
+
+// UpdateComment updates information of comment.
+func UpdateComment(ctx context.Context, c *Comment, contentVersion int, doer *user_model.User) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := c.LoadIssue(ctx); err != nil {
+		return err
+	}
+
+	sess := db.GetEngine(ctx).ID(c.ID).AllCols()
+	if c.Issue.NoAutoTime {
+		// update the DataBase
+		sess = sess.NoAutoTime().SetExpr("updated_unix", c.Issue.UpdatedUnix)
+		// the UpdatedUnix value of the Comment also has to be set,
+		// to return the adequate value
+		// see https://codeberg.org/forgejo/forgejo/pulls/764#issuecomment-1023801
+		c.UpdatedUnix = c.Issue.UpdatedUnix
+	}
+	c.ContentVersion = contentVersion + 1
+
+	affected, err := sess.Where("content_version = ?", contentVersion).Update(c)
+	if err != nil {
+		return err
+	}
+	if affected == 0 {
+		return ErrCommentAlreadyChanged
+	}
+	if err := c.AddCrossReferences(ctx, doer, true); err != nil {
+		return err
+	}
+	if err := committer.Commit(); err != nil {
+		return fmt.Errorf("Commit: %w", err)
+	}
+
+	return nil
+}
+
+// DeleteComment deletes the comment
+func DeleteComment(ctx context.Context, comment *Comment) error {
+	e := db.GetEngine(ctx)
+	if _, err := e.ID(comment.ID).NoAutoCondition().Delete(comment); err != nil {
+		return err
+	}
+
+	if _, err := db.DeleteByBean(ctx, &ContentHistory{
+		CommentID: comment.ID,
+	}); err != nil {
+		return err
+	}
+
+	if comment.Type == CommentTypeComment {
+		if _, err := e.ID(comment.IssueID).Decr("num_comments").Update(new(Issue)); err != nil {
+			return err
+		}
+	}
+	if _, err := e.Table("action").
+		Where("comment_id = ?", comment.ID).
+		Update(map[string]any{
+			"is_deleted": true,
+		}); err != nil {
+		return err
+	}
+
+	if err := comment.neuterCrossReferences(ctx); err != nil {
+		return err
+	}
+
+	return DeleteReaction(ctx, &ReactionOptions{CommentID: comment.ID})
+}
+
+// UpdateCommentsMigrationsByType updates comments' migrations information via given git service type and original id and poster id
+func UpdateCommentsMigrationsByType(ctx context.Context, tp structs.GitServiceType, originalAuthorID string, posterID int64) error {
+	_, err := db.GetEngine(ctx).Table("comment").
+		Join("INNER", "issue", "issue.id = comment.issue_id").
+		Join("INNER", "repository", "issue.repo_id = repository.id").
+		Where("repository.original_service_type = ?", tp).
+		And("comment.original_author_id = ?", originalAuthorID).
+		Update(map[string]any{
+			"poster_id":          posterID,
+			"original_author":    "",
+			"original_author_id": 0,
+		})
+	return err
+}
+
+// CreateAutoMergeComment is a internal function, only use it for CommentTypePRScheduledToAutoMerge and CommentTypePRUnScheduledToAutoMerge CommentTypes
+func CreateAutoMergeComment(ctx context.Context, typ CommentType, pr *PullRequest, doer *user_model.User) (comment *Comment, err error) {
+	if typ != CommentTypePRScheduledToAutoMerge && typ != CommentTypePRUnScheduledToAutoMerge {
+		return nil, fmt.Errorf("comment type %d cannot be used to create an auto merge comment", typ)
+	}
+	if err = pr.LoadIssue(ctx); err != nil {
+		return nil, err
+	}
+
+	if err = pr.LoadBaseRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	comment, err = CreateComment(ctx, &CreateCommentOptions{
+		Type:  typ,
+		Doer:  doer,
+		Repo:  pr.BaseRepo,
+		Issue: pr.Issue,
+	})
+	return comment, err
+}
+
+// RemapExternalUser ExternalUserRemappable interface
+func (c *Comment) RemapExternalUser(externalName string, externalID, userID int64) error {
+	c.OriginalAuthor = externalName
+	c.OriginalAuthorID = externalID
+	c.PosterID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (c *Comment) GetUserID() int64 { return c.PosterID }
+
+// GetExternalName ExternalUserRemappable interface
+func (c *Comment) GetExternalName() string { return c.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (c *Comment) GetExternalID() int64 { return c.OriginalAuthorID }
+
+// CountCommentTypeLabelWithEmptyLabel count label comments with empty label
+func CountCommentTypeLabelWithEmptyLabel(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.Eq{"type": CommentTypeLabel, "label_id": 0}).Count(new(Comment))
+}
+
+// FixCommentTypeLabelWithEmptyLabel count label comments with empty label
+func FixCommentTypeLabelWithEmptyLabel(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.Eq{"type": CommentTypeLabel, "label_id": 0}).Delete(new(Comment))
+}
+
+// CountCommentTypeLabelWithOutsideLabels count label comments with outside label
+func CountCommentTypeLabelWithOutsideLabels(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where("comment.type = ? AND ((label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id))", CommentTypeLabel).
+		Table("comment").
+		Join("inner", "label", "label.id = comment.label_id").
+		Join("inner", "issue", "issue.id = comment.issue_id ").
+		Join("inner", "repository", "issue.repo_id = repository.id").
+		Count()
+}
+
+// FixCommentTypeLabelWithOutsideLabels count label comments with outside label
+func FixCommentTypeLabelWithOutsideLabels(ctx context.Context) (int64, error) {
+	res, err := db.GetEngine(ctx).Exec(`DELETE FROM comment WHERE comment.id IN (
+		SELECT il_too.id FROM (
+			SELECT com.id
+				FROM comment AS com
+					INNER JOIN label ON com.label_id = label.id
+					INNER JOIN issue on issue.id = com.issue_id
+					INNER JOIN repository ON issue.repo_id = repository.id
+				WHERE
+					com.type = ? AND ((label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id))
+	) AS il_too)`, CommentTypeLabel)
+	if err != nil {
+		return 0, err
+	}
+
+	return res.RowsAffected()
+}
+
+// HasOriginalAuthor returns if a comment was migrated and has an original author.
+func (c *Comment) HasOriginalAuthor() bool {
+	return c.OriginalAuthor != "" && c.OriginalAuthorID != 0
+}
+
+// InsertIssueComments inserts many comments of issues.
+func InsertIssueComments(ctx context.Context, comments []*Comment) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	issueIDs := container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.IssueID, true
+	})
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	for _, comment := range comments {
+		if _, err := db.GetEngine(ctx).NoAutoTime().Insert(comment); err != nil {
+			return err
+		}
+
+		for _, reaction := range comment.Reactions {
+			reaction.IssueID = comment.IssueID
+			reaction.CommentID = comment.ID
+		}
+		if len(comment.Reactions) > 0 {
+			if err := db.Insert(ctx, comment.Reactions); err != nil {
+				return err
+			}
+		}
+	}
+
+	for _, issueID := range issueIDs {
+		if _, err := db.Exec(ctx, "UPDATE issue set num_comments = (SELECT count(*) FROM comment WHERE issue_id = ? AND `type`=?) WHERE id = ?",
+			issueID, CommentTypeComment, issueID); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
diff --git a/models/issues/comment_code.go b/models/issues/comment_code.go
new file mode 100644
index 0000000..2f6f57e
--- /dev/null
+++ b/models/issues/comment_code.go
@@ -0,0 +1,181 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/markup/markdown"
+
+	"xorm.io/builder"
+)
+
+// CodeConversation contains the comment of a given review
+type CodeConversation []*Comment
+
+// CodeConversationsAtLine contains the conversations for a given line
+type CodeConversationsAtLine map[int64][]CodeConversation
+
+// CodeConversationsAtLineAndTreePath contains the conversations for a given TreePath and line
+type CodeConversationsAtLineAndTreePath map[string]CodeConversationsAtLine
+
+func newCodeConversationsAtLineAndTreePath(comments []*Comment) CodeConversationsAtLineAndTreePath {
+	tree := make(CodeConversationsAtLineAndTreePath)
+	for _, comment := range comments {
+		tree.insertComment(comment)
+	}
+	return tree
+}
+
+func (tree CodeConversationsAtLineAndTreePath) insertComment(comment *Comment) {
+	// attempt to append comment to existing conversations (i.e. list of comments belonging to the same review)
+	for i, conversation := range tree[comment.TreePath][comment.Line] {
+		if conversation[0].ReviewID == comment.ReviewID {
+			tree[comment.TreePath][comment.Line][i] = append(conversation, comment)
+			return
+		}
+	}
+
+	// no previous conversation was found at this line, create it
+	if tree[comment.TreePath] == nil {
+		tree[comment.TreePath] = make(map[int64][]CodeConversation)
+	}
+
+	tree[comment.TreePath][comment.Line] = append(tree[comment.TreePath][comment.Line], CodeConversation{comment})
+}
+
+// FetchCodeConversations will return a 2d-map: ["Path"]["Line"] = List of CodeConversation (one per review) for this line
+func FetchCodeConversations(ctx context.Context, issue *Issue, doer *user_model.User, showOutdatedComments bool) (CodeConversationsAtLineAndTreePath, error) {
+	opts := FindCommentsOptions{
+		Type:    CommentTypeCode,
+		IssueID: issue.ID,
+	}
+	comments, err := findCodeComments(ctx, opts, issue, doer, nil, showOutdatedComments)
+	if err != nil {
+		return nil, err
+	}
+
+	return newCodeConversationsAtLineAndTreePath(comments), nil
+}
+
+// CodeComments represents comments on code by using this structure: FILENAME -> LINE (+ == proposed; - == previous) -> COMMENTS
+type CodeComments map[string]map[int64][]*Comment
+
+func fetchCodeCommentsByReview(ctx context.Context, issue *Issue, doer *user_model.User, review *Review, showOutdatedComments bool) (CodeComments, error) {
+	pathToLineToComment := make(CodeComments)
+	if review == nil {
+		review = &Review{ID: 0}
+	}
+	opts := FindCommentsOptions{
+		Type:     CommentTypeCode,
+		IssueID:  issue.ID,
+		ReviewID: review.ID,
+	}
+
+	comments, err := findCodeComments(ctx, opts, issue, doer, review, showOutdatedComments)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, comment := range comments {
+		if pathToLineToComment[comment.TreePath] == nil {
+			pathToLineToComment[comment.TreePath] = make(map[int64][]*Comment)
+		}
+		pathToLineToComment[comment.TreePath][comment.Line] = append(pathToLineToComment[comment.TreePath][comment.Line], comment)
+	}
+	return pathToLineToComment, nil
+}
+
+func findCodeComments(ctx context.Context, opts FindCommentsOptions, issue *Issue, doer *user_model.User, review *Review, showOutdatedComments bool) (CommentList, error) {
+	var comments CommentList
+	if review == nil {
+		review = &Review{ID: 0}
+	}
+	conds := opts.ToConds()
+
+	if !showOutdatedComments && review.ID == 0 {
+		conds = conds.And(builder.Eq{"invalidated": false})
+	}
+
+	e := db.GetEngine(ctx)
+	if err := e.Where(conds).
+		Asc("comment.created_unix").
+		Asc("comment.id").
+		Find(&comments); err != nil {
+		return nil, err
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	if err := comments.LoadPosters(ctx); err != nil {
+		return nil, err
+	}
+
+	if err := comments.LoadAttachments(ctx); err != nil {
+		return nil, err
+	}
+
+	// Find all reviews by ReviewID
+	reviews := make(map[int64]*Review)
+	ids := make([]int64, 0, len(comments))
+	for _, comment := range comments {
+		if comment.ReviewID != 0 {
+			ids = append(ids, comment.ReviewID)
+		}
+	}
+	if err := e.In("id", ids).Find(&reviews); err != nil {
+		return nil, err
+	}
+
+	n := 0
+	for _, comment := range comments {
+		if re, ok := reviews[comment.ReviewID]; ok && re != nil {
+			// If the review is pending only the author can see the comments (except if the review is set)
+			if review.ID == 0 && re.Type == ReviewTypePending &&
+				(doer == nil || doer.ID != re.ReviewerID) {
+				continue
+			}
+			comment.Review = re
+		}
+		comments[n] = comment
+		n++
+
+		if err := comment.LoadResolveDoer(ctx); err != nil {
+			return nil, err
+		}
+
+		if err := comment.LoadReactions(ctx, issue.Repo); err != nil {
+			return nil, err
+		}
+
+		var err error
+		if comment.RenderedContent, err = markdown.RenderString(&markup.RenderContext{
+			Ctx: ctx,
+			Links: markup.Links{
+				Base: issue.Repo.Link(),
+			},
+			Metas: issue.Repo.ComposeMetas(ctx),
+		}, comment.Content); err != nil {
+			return nil, err
+		}
+	}
+	return comments[:n], nil
+}
+
+// FetchCodeConversation fetches the code conversation of a given comment (same review, treePath and line number)
+func FetchCodeConversation(ctx context.Context, comment *Comment, doer *user_model.User) (CommentList, error) {
+	opts := FindCommentsOptions{
+		Type:     CommentTypeCode,
+		IssueID:  comment.IssueID,
+		ReviewID: comment.ReviewID,
+		TreePath: comment.TreePath,
+		Line:     comment.Line,
+	}
+	return findCodeComments(ctx, opts, comment.Issue, doer, nil, true)
+}
diff --git a/models/issues/comment_list.go b/models/issues/comment_list.go
new file mode 100644
index 0000000..7a133d1
--- /dev/null
+++ b/models/issues/comment_list.go
@@ -0,0 +1,488 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+)
+
+// CommentList defines a list of comments
+type CommentList []*Comment
+
+// LoadPosters loads posters
+func (comments CommentList) LoadPosters(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	posterIDs := container.FilterSlice(comments, func(c *Comment) (int64, bool) {
+		return c.PosterID, c.Poster == nil && user_model.IsValidUserID(c.PosterID)
+	})
+
+	posterMaps, err := getPostersByIDs(ctx, posterIDs)
+	if err != nil {
+		return err
+	}
+
+	for _, comment := range comments {
+		if comment.Poster == nil {
+			comment.PosterID, comment.Poster = user_model.GetUserFromMap(comment.PosterID, posterMaps)
+		}
+	}
+	return nil
+}
+
+func (comments CommentList) getLabelIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.LabelID, comment.LabelID > 0
+	})
+}
+
+func (comments CommentList) loadLabels(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	labelIDs := comments.getLabelIDs()
+	commentLabels := make(map[int64]*Label, len(labelIDs))
+	left := len(labelIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", labelIDs[:limit]).
+			Rows(new(Label))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var label Label
+			err = rows.Scan(&label)
+			if err != nil {
+				_ = rows.Close()
+				return err
+			}
+			commentLabels[label.ID] = &label
+		}
+		_ = rows.Close()
+		left -= limit
+		labelIDs = labelIDs[limit:]
+	}
+
+	for _, comment := range comments {
+		comment.Label = commentLabels[comment.ID]
+	}
+	return nil
+}
+
+func (comments CommentList) getMilestoneIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.MilestoneID, comment.MilestoneID > 0
+	})
+}
+
+func (comments CommentList) loadMilestones(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	milestoneIDs := comments.getMilestoneIDs()
+	if len(milestoneIDs) == 0 {
+		return nil
+	}
+
+	milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
+	left := len(milestoneIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		err := db.GetEngine(ctx).
+			In("id", milestoneIDs[:limit]).
+			Find(&milestoneMaps)
+		if err != nil {
+			return err
+		}
+		left -= limit
+		milestoneIDs = milestoneIDs[limit:]
+	}
+
+	for _, issue := range comments {
+		issue.Milestone = milestoneMaps[issue.MilestoneID]
+	}
+	return nil
+}
+
+func (comments CommentList) getOldMilestoneIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.OldMilestoneID, comment.OldMilestoneID > 0
+	})
+}
+
+func (comments CommentList) loadOldMilestones(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	milestoneIDs := comments.getOldMilestoneIDs()
+	if len(milestoneIDs) == 0 {
+		return nil
+	}
+
+	milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
+	left := len(milestoneIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		err := db.GetEngine(ctx).
+			In("id", milestoneIDs[:limit]).
+			Find(&milestoneMaps)
+		if err != nil {
+			return err
+		}
+		left -= limit
+		milestoneIDs = milestoneIDs[limit:]
+	}
+
+	for _, issue := range comments {
+		issue.OldMilestone = milestoneMaps[issue.MilestoneID]
+	}
+	return nil
+}
+
+func (comments CommentList) getAssigneeIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.AssigneeID, user_model.IsValidUserID(comment.AssigneeID)
+	})
+}
+
+func (comments CommentList) loadAssignees(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	assigneeIDs := comments.getAssigneeIDs()
+	assignees := make(map[int64]*user_model.User, len(assigneeIDs))
+	left := len(assigneeIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", assigneeIDs[:limit]).
+			Rows(new(user_model.User))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var user user_model.User
+			err = rows.Scan(&user)
+			if err != nil {
+				rows.Close()
+				return err
+			}
+
+			assignees[user.ID] = &user
+		}
+		_ = rows.Close()
+
+		left -= limit
+		assigneeIDs = assigneeIDs[limit:]
+	}
+
+	for _, comment := range comments {
+		comment.AssigneeID, comment.Assignee = user_model.GetUserFromMap(comment.AssigneeID, assignees)
+	}
+	return nil
+}
+
+// getIssueIDs returns all the issue ids on this comment list which issue hasn't been loaded
+func (comments CommentList) getIssueIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.IssueID, comment.Issue == nil
+	})
+}
+
+// Issues returns all the issues of comments
+func (comments CommentList) Issues() IssueList {
+	issues := make(map[int64]*Issue, len(comments))
+	for _, comment := range comments {
+		if comment.Issue != nil {
+			if _, ok := issues[comment.Issue.ID]; !ok {
+				issues[comment.Issue.ID] = comment.Issue
+			}
+		}
+	}
+
+	issueList := make([]*Issue, 0, len(issues))
+	for _, issue := range issues {
+		issueList = append(issueList, issue)
+	}
+	return issueList
+}
+
+// LoadIssues loads issues of comments
+func (comments CommentList) LoadIssues(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	issueIDs := comments.getIssueIDs()
+	issues := make(map[int64]*Issue, len(issueIDs))
+	left := len(issueIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("id", issueIDs[:limit]).
+			Rows(new(Issue))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var issue Issue
+			err = rows.Scan(&issue)
+			if err != nil {
+				rows.Close()
+				return err
+			}
+
+			issues[issue.ID] = &issue
+		}
+		_ = rows.Close()
+
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	for _, comment := range comments {
+		if comment.Issue == nil {
+			comment.Issue = issues[comment.IssueID]
+		}
+	}
+	return nil
+}
+
+func (comments CommentList) getDependentIssueIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		if comment.DependentIssue != nil {
+			return 0, false
+		}
+		return comment.DependentIssueID, comment.DependentIssueID > 0
+	})
+}
+
+func (comments CommentList) loadDependentIssues(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	e := db.GetEngine(ctx)
+	issueIDs := comments.getDependentIssueIDs()
+	issues := make(map[int64]*Issue, len(issueIDs))
+	left := len(issueIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := e.
+			In("id", issueIDs[:limit]).
+			Rows(new(Issue))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var issue Issue
+			err = rows.Scan(&issue)
+			if err != nil {
+				_ = rows.Close()
+				return err
+			}
+
+			issues[issue.ID] = &issue
+		}
+		_ = rows.Close()
+
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	for _, comment := range comments {
+		if comment.DependentIssue == nil {
+			comment.DependentIssue = issues[comment.DependentIssueID]
+			if comment.DependentIssue != nil {
+				if err := comment.DependentIssue.LoadRepo(ctx); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+// getAttachmentCommentIDs only return the comment ids which possibly has attachments
+func (comments CommentList) getAttachmentCommentIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.ID, comment.Type.HasAttachmentSupport()
+	})
+}
+
+// LoadAttachmentsByIssue loads attachments by issue id
+func (comments CommentList) LoadAttachmentsByIssue(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	attachments := make([]*repo_model.Attachment, 0, len(comments)/2)
+	if err := db.GetEngine(ctx).Where("issue_id=? AND comment_id>0", comments[0].IssueID).Find(&attachments); err != nil {
+		return err
+	}
+
+	commentAttachmentsMap := make(map[int64][]*repo_model.Attachment, len(comments))
+	for _, attach := range attachments {
+		commentAttachmentsMap[attach.CommentID] = append(commentAttachmentsMap[attach.CommentID], attach)
+	}
+
+	for _, comment := range comments {
+		comment.Attachments = commentAttachmentsMap[comment.ID]
+	}
+	return nil
+}
+
+// LoadAttachments loads attachments
+func (comments CommentList) LoadAttachments(ctx context.Context) (err error) {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	attachments := make(map[int64][]*repo_model.Attachment, len(comments))
+	commentsIDs := comments.getAttachmentCommentIDs()
+	left := len(commentsIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("comment_id", commentsIDs[:limit]).
+			Rows(new(repo_model.Attachment))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var attachment repo_model.Attachment
+			err = rows.Scan(&attachment)
+			if err != nil {
+				_ = rows.Close()
+				return err
+			}
+			attachments[attachment.CommentID] = append(attachments[attachment.CommentID], &attachment)
+		}
+
+		_ = rows.Close()
+		left -= limit
+		commentsIDs = commentsIDs[limit:]
+	}
+
+	for _, comment := range comments {
+		comment.Attachments = attachments[comment.ID]
+	}
+	return nil
+}
+
+func (comments CommentList) getReviewIDs() []int64 {
+	return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
+		return comment.ReviewID, comment.ReviewID > 0
+	})
+}
+
+func (comments CommentList) loadReviews(ctx context.Context) error {
+	if len(comments) == 0 {
+		return nil
+	}
+
+	reviewIDs := comments.getReviewIDs()
+	reviews := make(map[int64]*Review, len(reviewIDs))
+	if err := db.GetEngine(ctx).In("id", reviewIDs).Find(&reviews); err != nil {
+		return err
+	}
+
+	for _, comment := range comments {
+		comment.Review = reviews[comment.ReviewID]
+		if comment.Review == nil {
+			// review request which has been replaced by actual reviews doesn't exist in database anymore, so don't log errors for them.
+			if comment.ReviewID > 0 && comment.Type != CommentTypeReviewRequest {
+				log.Error("comment with review id [%d] but has no review record", comment.ReviewID)
+			}
+			continue
+		}
+
+		// If the comment dismisses a review, we need to load the reviewer to show whose review has been dismissed.
+		// Otherwise, the reviewer is the poster of the comment, so we don't need to load it.
+		if comment.Type == CommentTypeDismissReview {
+			if err := comment.Review.LoadReviewer(ctx); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// LoadAttributes loads attributes of the comments, except for attachments and
+// comments
+func (comments CommentList) LoadAttributes(ctx context.Context) (err error) {
+	if err = comments.LoadPosters(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.loadLabels(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.loadMilestones(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.loadOldMilestones(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.loadAssignees(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.LoadAttachments(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.loadReviews(ctx); err != nil {
+		return err
+	}
+
+	if err = comments.LoadIssues(ctx); err != nil {
+		return err
+	}
+
+	return comments.loadDependentIssues(ctx)
+}
diff --git a/models/issues/comment_list_test.go b/models/issues/comment_list_test.go
new file mode 100644
index 0000000..5ad1cd1
--- /dev/null
+++ b/models/issues/comment_list_test.go
@@ -0,0 +1,86 @@
+// Copyright 2024 The Forgejo Authors
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCommentListLoadUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &Issue{})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+
+	for _, testCase := range []struct {
+		poster   int64
+		assignee int64
+		user     *user_model.User
+	}{
+		{
+			poster:   user_model.ActionsUserID,
+			assignee: user_model.ActionsUserID,
+			user:     user_model.NewActionsUser(),
+		},
+		{
+			poster:   user_model.GhostUserID,
+			assignee: user_model.GhostUserID,
+			user:     user_model.NewGhostUser(),
+		},
+		{
+			poster:   doer.ID,
+			assignee: doer.ID,
+			user:     doer,
+		},
+		{
+			poster:   0,
+			assignee: 0,
+			user:     user_model.NewGhostUser(),
+		},
+		{
+			poster:   -200,
+			assignee: -200,
+			user:     user_model.NewGhostUser(),
+		},
+		{
+			poster:   200,
+			assignee: 200,
+			user:     user_model.NewGhostUser(),
+		},
+	} {
+		t.Run(testCase.user.Name, func(t *testing.T) {
+			comment, err := CreateComment(db.DefaultContext, &CreateCommentOptions{
+				Type:    CommentTypeComment,
+				Doer:    testCase.user,
+				Repo:    repo,
+				Issue:   issue,
+				Content: "Hello",
+			})
+			assert.NoError(t, err)
+
+			list := CommentList{comment}
+
+			comment.PosterID = testCase.poster
+			comment.Poster = nil
+			assert.NoError(t, list.LoadPosters(db.DefaultContext))
+			require.NotNil(t, comment.Poster)
+			assert.Equal(t, testCase.user.ID, comment.Poster.ID)
+
+			comment.AssigneeID = testCase.assignee
+			comment.Assignee = nil
+			require.NoError(t, list.loadAssignees(db.DefaultContext))
+			require.NotNil(t, comment.Assignee)
+			assert.Equal(t, testCase.user.ID, comment.Assignee.ID)
+		})
+	}
+}
diff --git a/models/issues/comment_test.go b/models/issues/comment_test.go
new file mode 100644
index 0000000..f7088cc
--- /dev/null
+++ b/models/issues/comment_test.go
@@ -0,0 +1,127 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/structs"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateComment(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+
+	now := time.Now().Unix()
+	comment, err := issues_model.CreateComment(db.DefaultContext, &issues_model.CreateCommentOptions{
+		Type:    issues_model.CommentTypeComment,
+		Doer:    doer,
+		Repo:    repo,
+		Issue:   issue,
+		Content: "Hello",
+	})
+	require.NoError(t, err)
+	then := time.Now().Unix()
+
+	assert.EqualValues(t, issues_model.CommentTypeComment, comment.Type)
+	assert.EqualValues(t, "Hello", comment.Content)
+	assert.EqualValues(t, issue.ID, comment.IssueID)
+	assert.EqualValues(t, doer.ID, comment.PosterID)
+	unittest.AssertInt64InRange(t, now, then, int64(comment.CreatedUnix))
+	unittest.AssertExistsAndLoadBean(t, comment) // assert actually added to DB
+
+	updatedIssue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issue.ID})
+	unittest.AssertInt64InRange(t, now, then, int64(updatedIssue.UpdatedUnix))
+}
+
+func TestFetchCodeConversations(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	res, err := issues_model.FetchCodeConversations(db.DefaultContext, issue, user, false)
+	require.NoError(t, err)
+	assert.Contains(t, res, "README.md")
+	assert.Contains(t, res["README.md"], int64(4))
+	assert.Len(t, res["README.md"][4], 1)
+	assert.Equal(t, int64(4), res["README.md"][4][0][0].ID)
+
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	res, err = issues_model.FetchCodeConversations(db.DefaultContext, issue, user2, false)
+	require.NoError(t, err)
+	assert.Len(t, res, 1)
+}
+
+func TestAsCommentType(t *testing.T) {
+	assert.Equal(t, issues_model.CommentTypeComment, issues_model.CommentType(0))
+	assert.Equal(t, issues_model.CommentTypeUndefined, issues_model.AsCommentType(""))
+	assert.Equal(t, issues_model.CommentTypeUndefined, issues_model.AsCommentType("nonsense"))
+	assert.Equal(t, issues_model.CommentTypeComment, issues_model.AsCommentType("comment"))
+	assert.Equal(t, issues_model.CommentTypePRUnScheduledToAutoMerge, issues_model.AsCommentType("pull_cancel_scheduled_merge"))
+}
+
+func TestMigrate_InsertIssueComments(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	_ = issue.LoadRepo(db.DefaultContext)
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: issue.Repo.OwnerID})
+	reaction := &issues_model.Reaction{
+		Type:   "heart",
+		UserID: owner.ID,
+	}
+
+	comment := &issues_model.Comment{
+		PosterID:  owner.ID,
+		Poster:    owner,
+		IssueID:   issue.ID,
+		Issue:     issue,
+		Reactions: []*issues_model.Reaction{reaction},
+	}
+
+	err := issues_model.InsertIssueComments(db.DefaultContext, []*issues_model.Comment{comment})
+	require.NoError(t, err)
+
+	issueModified := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	assert.EqualValues(t, issue.NumComments+1, issueModified.NumComments)
+
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{})
+}
+
+func TestUpdateCommentsMigrationsByType(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
+	comment := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 1, IssueID: issue.ID})
+
+	// Set repository to migrated from Gitea.
+	repo.OriginalServiceType = structs.GiteaService
+	repo_model.UpdateRepositoryCols(db.DefaultContext, repo, "original_service_type")
+
+	// Set comment to have an original author.
+	comment.OriginalAuthor = "Example User"
+	comment.OriginalAuthorID = 1
+	comment.PosterID = 0
+	_, err := db.GetEngine(db.DefaultContext).ID(comment.ID).Cols("original_author", "original_author_id", "poster_id").Update(comment)
+	require.NoError(t, err)
+
+	require.NoError(t, issues_model.UpdateCommentsMigrationsByType(db.DefaultContext, structs.GiteaService, "1", 513))
+
+	comment = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 1, IssueID: issue.ID})
+	assert.Empty(t, comment.OriginalAuthor)
+	assert.Empty(t, comment.OriginalAuthorID)
+	assert.EqualValues(t, 513, comment.PosterID)
+}
diff --git a/models/issues/content_history.go b/models/issues/content_history.go
new file mode 100644
index 0000000..cd3e217
--- /dev/null
+++ b/models/issues/content_history.go
@@ -0,0 +1,242 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/avatars"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ContentHistory save issue/comment content history revisions.
+type ContentHistory struct {
+	ID             int64 `xorm:"pk autoincr"`
+	PosterID       int64
+	IssueID        int64              `xorm:"INDEX"`
+	CommentID      int64              `xorm:"INDEX"`
+	EditedUnix     timeutil.TimeStamp `xorm:"INDEX"`
+	ContentText    string             `xorm:"LONGTEXT"`
+	IsFirstCreated bool
+	IsDeleted      bool
+}
+
+// TableName provides the real table name
+func (m *ContentHistory) TableName() string {
+	return "issue_content_history"
+}
+
+func init() {
+	db.RegisterModel(new(ContentHistory))
+}
+
+// SaveIssueContentHistory save history
+func SaveIssueContentHistory(ctx context.Context, posterID, issueID, commentID int64, editTime timeutil.TimeStamp, contentText string, isFirstCreated bool) error {
+	ch := &ContentHistory{
+		PosterID:       posterID,
+		IssueID:        issueID,
+		CommentID:      commentID,
+		ContentText:    contentText,
+		EditedUnix:     editTime,
+		IsFirstCreated: isFirstCreated,
+	}
+	if err := db.Insert(ctx, ch); err != nil {
+		log.Error("can not save issue content history. err=%v", err)
+		return err
+	}
+	// We only keep at most 20 history revisions now. It is enough in most cases.
+	// If there is a special requirement to keep more, we can consider introducing a new setting option then, but not now.
+	KeepLimitedContentHistory(ctx, issueID, commentID, 20)
+	return nil
+}
+
+// KeepLimitedContentHistory keeps at most `limit` history revisions, it will hard delete out-dated revisions, sorting by revision interval
+// we can ignore all errors in this function, so we just log them
+func KeepLimitedContentHistory(ctx context.Context, issueID, commentID int64, limit int) {
+	type IDEditTime struct {
+		ID         int64
+		EditedUnix timeutil.TimeStamp
+	}
+
+	var res []*IDEditTime
+	err := db.GetEngine(ctx).Select("id, edited_unix").Table("issue_content_history").
+		Where(builder.Eq{"issue_id": issueID, "comment_id": commentID}).
+		OrderBy("edited_unix ASC").
+		Find(&res)
+	if err != nil {
+		log.Error("can not query content history for deletion, err=%v", err)
+		return
+	}
+	if len(res) <= 2 {
+		return
+	}
+
+	outDatedCount := len(res) - limit
+	for outDatedCount > 0 {
+		var indexToDelete int
+		minEditedInterval := -1
+		// find a history revision with minimal edited interval to delete, the first and the last should never be deleted
+		for i := 1; i < len(res)-1; i++ {
+			editedInterval := int(res[i].EditedUnix - res[i-1].EditedUnix)
+			if minEditedInterval == -1 || editedInterval < minEditedInterval {
+				minEditedInterval = editedInterval
+				indexToDelete = i
+			}
+		}
+		if indexToDelete == 0 {
+			break
+		}
+
+		// hard delete the found one
+		_, err = db.GetEngine(ctx).Delete(&ContentHistory{ID: res[indexToDelete].ID})
+		if err != nil {
+			log.Error("can not delete out-dated content history, err=%v", err)
+			break
+		}
+		res = append(res[:indexToDelete], res[indexToDelete+1:]...)
+		outDatedCount--
+	}
+}
+
+// QueryIssueContentHistoryEditedCountMap query related history count of each comment (comment_id = 0 means the main issue)
+// only return the count map for "edited" (history revision count > 1) issues or comments.
+func QueryIssueContentHistoryEditedCountMap(dbCtx context.Context, issueID int64) (map[int64]int, error) {
+	type HistoryCountRecord struct {
+		CommentID    int64
+		HistoryCount int
+	}
+	records := make([]*HistoryCountRecord, 0)
+
+	err := db.GetEngine(dbCtx).Select("comment_id, COUNT(1) as history_count").
+		Table("issue_content_history").
+		Where(builder.Eq{"issue_id": issueID}).
+		GroupBy("comment_id").
+		Having("count(1) > 1").
+		Find(&records)
+	if err != nil {
+		log.Error("can not query issue content history count map. err=%v", err)
+		return nil, err
+	}
+
+	res := map[int64]int{}
+	for _, r := range records {
+		res[r.CommentID] = r.HistoryCount
+	}
+	return res, nil
+}
+
+// IssueContentListItem the list for web ui
+type IssueContentListItem struct {
+	UserID         int64
+	UserName       string
+	UserFullName   string
+	UserAvatarLink string
+
+	HistoryID      int64
+	EditedUnix     timeutil.TimeStamp
+	IsFirstCreated bool
+	IsDeleted      bool
+}
+
+// FetchIssueContentHistoryList fetch list
+func FetchIssueContentHistoryList(dbCtx context.Context, issueID, commentID int64) ([]*IssueContentListItem, error) {
+	res := make([]*IssueContentListItem, 0)
+	err := db.GetEngine(dbCtx).Select("u.id as user_id, u.name as user_name, u.full_name as user_full_name,"+
+		"h.id as history_id, h.edited_unix, h.is_first_created, h.is_deleted").
+		Table([]string{"issue_content_history", "h"}).
+		Join("LEFT", []string{"user", "u"}, "h.poster_id = u.id").
+		Where(builder.Eq{"issue_id": issueID, "comment_id": commentID}).
+		OrderBy("edited_unix DESC").
+		Find(&res)
+	if err != nil {
+		log.Error("can not fetch issue content history list. err=%v", err)
+		return nil, err
+	}
+
+	for _, item := range res {
+		if item.UserID > 0 {
+			item.UserAvatarLink = avatars.GenerateUserAvatarFastLink(item.UserName, 0)
+		} else {
+			item.UserAvatarLink = avatars.DefaultAvatarLink()
+		}
+	}
+	return res, nil
+}
+
+// HasIssueContentHistory check if a ContentHistory entry exists
+func HasIssueContentHistory(dbCtx context.Context, issueID, commentID int64) (bool, error) {
+	return db.GetEngine(dbCtx).Where("issue_id = ? AND comment_id = ?", issueID, commentID).Exist(new(ContentHistory))
+}
+
+// SoftDeleteIssueContentHistory soft delete
+func SoftDeleteIssueContentHistory(dbCtx context.Context, historyID int64) error {
+	if _, err := db.GetEngine(dbCtx).ID(historyID).Cols("is_deleted", "content_text").Update(&ContentHistory{
+		IsDeleted:   true,
+		ContentText: "",
+	}); err != nil {
+		log.Error("failed to soft delete issue content history. err=%v", err)
+		return err
+	}
+	return nil
+}
+
+// ErrIssueContentHistoryNotExist not exist error
+type ErrIssueContentHistoryNotExist struct {
+	ID int64
+}
+
+// Error error string
+func (err ErrIssueContentHistoryNotExist) Error() string {
+	return fmt.Sprintf("issue content history does not exist [id: %d]", err.ID)
+}
+
+func (err ErrIssueContentHistoryNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// GetIssueContentHistoryByID get issue content history
+func GetIssueContentHistoryByID(dbCtx context.Context, id int64) (*ContentHistory, error) {
+	h := &ContentHistory{}
+	has, err := db.GetEngine(dbCtx).ID(id).Get(h)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrIssueContentHistoryNotExist{id}
+	}
+	return h, nil
+}
+
+// GetIssueContentHistoryAndPrev get a history and the previous non-deleted history (to compare)
+func GetIssueContentHistoryAndPrev(dbCtx context.Context, issueID, id int64) (history, prevHistory *ContentHistory, err error) {
+	history = &ContentHistory{}
+	has, err := db.GetEngine(dbCtx).Where("id=? AND issue_id=?", id, issueID).Get(history)
+	if err != nil {
+		log.Error("failed to get issue content history %v. err=%v", id, err)
+		return nil, nil, err
+	} else if !has {
+		log.Error("issue content history does not exist. id=%v. err=%v", id, err)
+		return nil, nil, &ErrIssueContentHistoryNotExist{id}
+	}
+
+	prevHistory = &ContentHistory{}
+	has, err = db.GetEngine(dbCtx).Where(builder.Eq{"issue_id": history.IssueID, "comment_id": history.CommentID, "is_deleted": false}).
+		And(builder.Lt{"edited_unix": history.EditedUnix}).
+		OrderBy("edited_unix DESC").Limit(1).
+		Get(prevHistory)
+
+	if err != nil {
+		log.Error("failed to get issue content history %v. err=%v", id, err)
+		return nil, nil, err
+	} else if !has {
+		return history, nil, nil
+	}
+
+	return history, prevHistory, nil
+}
diff --git a/models/issues/content_history_test.go b/models/issues/content_history_test.go
new file mode 100644
index 0000000..dde6f19
--- /dev/null
+++ b/models/issues/content_history_test.go
@@ -0,0 +1,94 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestContentHistory(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	dbCtx := db.DefaultContext
+	timeStampNow := timeutil.TimeStampNow()
+
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 0, timeStampNow, "i-a", true)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 0, timeStampNow.Add(2), "i-b", false)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 0, timeStampNow.Add(7), "i-c", false)
+
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 100, timeStampNow, "c-a", true)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 100, timeStampNow.Add(5), "c-b", false)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 100, timeStampNow.Add(20), "c-c", false)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 100, timeStampNow.Add(50), "c-d", false)
+	_ = issues_model.SaveIssueContentHistory(dbCtx, 1, 10, 100, timeStampNow.Add(51), "c-e", false)
+
+	h1, _ := issues_model.GetIssueContentHistoryByID(dbCtx, 1)
+	assert.EqualValues(t, 1, h1.ID)
+
+	m, _ := issues_model.QueryIssueContentHistoryEditedCountMap(dbCtx, 10)
+	assert.Equal(t, 3, m[0])
+	assert.Equal(t, 5, m[100])
+
+	/*
+		we can not have this test with real `User` now, because we can not depend on `User` model (circle-import), so there is no `user` table
+		when the refactor of models are done, this test will be possible to be run then with a real `User` model.
+	*/
+	type User struct {
+		ID       int64
+		Name     string
+		FullName string
+	}
+	_ = db.GetEngine(dbCtx).Sync(&User{})
+
+	list1, _ := issues_model.FetchIssueContentHistoryList(dbCtx, 10, 0)
+	assert.Len(t, list1, 3)
+	list2, _ := issues_model.FetchIssueContentHistoryList(dbCtx, 10, 100)
+	assert.Len(t, list2, 5)
+
+	hasHistory1, _ := issues_model.HasIssueContentHistory(dbCtx, 10, 0)
+	assert.True(t, hasHistory1)
+	hasHistory2, _ := issues_model.HasIssueContentHistory(dbCtx, 10, 1)
+	assert.False(t, hasHistory2)
+
+	h6, h6Prev, _ := issues_model.GetIssueContentHistoryAndPrev(dbCtx, 10, 6)
+	assert.EqualValues(t, 6, h6.ID)
+	assert.EqualValues(t, 5, h6Prev.ID)
+
+	// soft-delete
+	_ = issues_model.SoftDeleteIssueContentHistory(dbCtx, 5)
+	h6, h6Prev, _ = issues_model.GetIssueContentHistoryAndPrev(dbCtx, 10, 6)
+	assert.EqualValues(t, 6, h6.ID)
+	assert.EqualValues(t, 4, h6Prev.ID)
+
+	// only keep 3 history revisions for comment_id=100, the first and the last should never be deleted
+	issues_model.KeepLimitedContentHistory(dbCtx, 10, 100, 3)
+	list1, _ = issues_model.FetchIssueContentHistoryList(dbCtx, 10, 0)
+	assert.Len(t, list1, 3)
+	list2, _ = issues_model.FetchIssueContentHistoryList(dbCtx, 10, 100)
+	assert.Len(t, list2, 3)
+	assert.EqualValues(t, 8, list2[0].HistoryID)
+	assert.EqualValues(t, 7, list2[1].HistoryID)
+	assert.EqualValues(t, 4, list2[2].HistoryID)
+}
+
+func TestHasIssueContentHistory(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Ensures that comment_id is into taken account even if it's zero.
+	_ = issues_model.SaveIssueContentHistory(db.DefaultContext, 1, 11, 100, timeutil.TimeStampNow(), "c-a", true)
+	_ = issues_model.SaveIssueContentHistory(db.DefaultContext, 1, 11, 100, timeutil.TimeStampNow().Add(5), "c-b", false)
+
+	hasHistory1, _ := issues_model.HasIssueContentHistory(db.DefaultContext, 11, 0)
+	assert.False(t, hasHistory1)
+	hasHistory2, _ := issues_model.HasIssueContentHistory(db.DefaultContext, 11, 100)
+	assert.True(t, hasHistory2)
+}
diff --git a/models/issues/dependency.go b/models/issues/dependency.go
new file mode 100644
index 0000000..146dd18
--- /dev/null
+++ b/models/issues/dependency.go
@@ -0,0 +1,222 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrDependencyExists represents a "DependencyAlreadyExists" kind of error.
+type ErrDependencyExists struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrDependencyExists checks if an error is a ErrDependencyExists.
+func IsErrDependencyExists(err error) bool {
+	_, ok := err.(ErrDependencyExists)
+	return ok
+}
+
+func (err ErrDependencyExists) Error() string {
+	return fmt.Sprintf("issue dependency does already exist [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+func (err ErrDependencyExists) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrDependencyNotExists represents a "DependencyAlreadyExists" kind of error.
+type ErrDependencyNotExists struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrDependencyNotExists checks if an error is a ErrDependencyExists.
+func IsErrDependencyNotExists(err error) bool {
+	_, ok := err.(ErrDependencyNotExists)
+	return ok
+}
+
+func (err ErrDependencyNotExists) Error() string {
+	return fmt.Sprintf("issue dependency does not exist [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+func (err ErrDependencyNotExists) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrCircularDependency represents a "DependencyCircular" kind of error.
+type ErrCircularDependency struct {
+	IssueID      int64
+	DependencyID int64
+}
+
+// IsErrCircularDependency checks if an error is a ErrCircularDependency.
+func IsErrCircularDependency(err error) bool {
+	_, ok := err.(ErrCircularDependency)
+	return ok
+}
+
+func (err ErrCircularDependency) Error() string {
+	return fmt.Sprintf("circular dependencies exists (two issues blocking each other) [issue id: %d, dependency id: %d]", err.IssueID, err.DependencyID)
+}
+
+// ErrDependenciesLeft represents an error where the issue you're trying to close still has dependencies left.
+type ErrDependenciesLeft struct {
+	IssueID int64
+}
+
+// IsErrDependenciesLeft checks if an error is a ErrDependenciesLeft.
+func IsErrDependenciesLeft(err error) bool {
+	_, ok := err.(ErrDependenciesLeft)
+	return ok
+}
+
+func (err ErrDependenciesLeft) Error() string {
+	return fmt.Sprintf("issue has open dependencies [issue id: %d]", err.IssueID)
+}
+
+// ErrUnknownDependencyType represents an error where an unknown dependency type was passed
+type ErrUnknownDependencyType struct {
+	Type DependencyType
+}
+
+// IsErrUnknownDependencyType checks if an error is ErrUnknownDependencyType
+func IsErrUnknownDependencyType(err error) bool {
+	_, ok := err.(ErrUnknownDependencyType)
+	return ok
+}
+
+func (err ErrUnknownDependencyType) Error() string {
+	return fmt.Sprintf("unknown dependency type [type: %d]", err.Type)
+}
+
+func (err ErrUnknownDependencyType) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// IssueDependency represents an issue dependency
+type IssueDependency struct {
+	ID           int64              `xorm:"pk autoincr"`
+	UserID       int64              `xorm:"NOT NULL"`
+	IssueID      int64              `xorm:"UNIQUE(issue_dependency) NOT NULL"`
+	DependencyID int64              `xorm:"UNIQUE(issue_dependency) NOT NULL"`
+	CreatedUnix  timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix  timeutil.TimeStamp `xorm:"updated"`
+}
+
+func init() {
+	db.RegisterModel(new(IssueDependency))
+}
+
+// DependencyType Defines Dependency Type Constants
+type DependencyType int
+
+// Define Dependency Types
+const (
+	DependencyTypeBlockedBy DependencyType = iota
+	DependencyTypeBlocking
+)
+
+// CreateIssueDependency creates a new dependency for an issue
+func CreateIssueDependency(ctx context.Context, user *user_model.User, issue, dep *Issue) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Check if it already exists
+	exists, err := issueDepExists(ctx, issue.ID, dep.ID)
+	if err != nil {
+		return err
+	}
+	if exists {
+		return ErrDependencyExists{issue.ID, dep.ID}
+	}
+	// And if it would be circular
+	circular, err := issueDepExists(ctx, dep.ID, issue.ID)
+	if err != nil {
+		return err
+	}
+	if circular {
+		return ErrCircularDependency{issue.ID, dep.ID}
+	}
+
+	if err := db.Insert(ctx, &IssueDependency{
+		UserID:       user.ID,
+		IssueID:      issue.ID,
+		DependencyID: dep.ID,
+	}); err != nil {
+		return err
+	}
+
+	// Add comment referencing the new dependency
+	if err = createIssueDependencyComment(ctx, user, issue, dep, true); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// RemoveIssueDependency removes a dependency from an issue
+func RemoveIssueDependency(ctx context.Context, user *user_model.User, issue, dep *Issue, depType DependencyType) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	var issueDepToDelete IssueDependency
+
+	switch depType {
+	case DependencyTypeBlockedBy:
+		issueDepToDelete = IssueDependency{IssueID: issue.ID, DependencyID: dep.ID}
+	case DependencyTypeBlocking:
+		issueDepToDelete = IssueDependency{IssueID: dep.ID, DependencyID: issue.ID}
+	default:
+		return ErrUnknownDependencyType{depType}
+	}
+
+	affected, err := db.GetEngine(ctx).Delete(&issueDepToDelete)
+	if err != nil {
+		return err
+	}
+
+	// If we deleted nothing, the dependency did not exist
+	if affected <= 0 {
+		return ErrDependencyNotExists{issue.ID, dep.ID}
+	}
+
+	// Add comment referencing the removed dependency
+	if err = createIssueDependencyComment(ctx, user, issue, dep, false); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+// Check if the dependency already exists
+func issueDepExists(ctx context.Context, issueID, depID int64) (bool, error) {
+	return db.GetEngine(ctx).Where("(issue_id = ? AND dependency_id = ?)", issueID, depID).Exist(&IssueDependency{})
+}
+
+// IssueNoDependenciesLeft checks if issue can be closed
+func IssueNoDependenciesLeft(ctx context.Context, issue *Issue) (bool, error) {
+	exists, err := db.GetEngine(ctx).
+		Table("issue_dependency").
+		Select("issue.*").
+		Join("INNER", "issue", "issue.id = issue_dependency.dependency_id").
+		Where("issue_dependency.issue_id = ?", issue.ID).
+		And("issue.is_closed = ?", "0").
+		Exist(&Issue{})
+
+	return !exists, err
+}
diff --git a/models/issues/dependency_test.go b/models/issues/dependency_test.go
new file mode 100644
index 0000000..1e73c58
--- /dev/null
+++ b/models/issues/dependency_test.go
@@ -0,0 +1,63 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateIssueDependency(t *testing.T) {
+	// Prepare
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1, err := user_model.GetUserByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	issue1, err := issues_model.GetIssueByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	issue2, err := issues_model.GetIssueByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+
+	// Create a dependency and check if it was successful
+	err = issues_model.CreateIssueDependency(db.DefaultContext, user1, issue1, issue2)
+	require.NoError(t, err)
+
+	// Do it again to see if it will check if the dependency already exists
+	err = issues_model.CreateIssueDependency(db.DefaultContext, user1, issue1, issue2)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrDependencyExists(err))
+
+	// Check for circular dependencies
+	err = issues_model.CreateIssueDependency(db.DefaultContext, user1, issue2, issue1)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrCircularDependency(err))
+
+	_ = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{Type: issues_model.CommentTypeAddDependency, PosterID: user1.ID, IssueID: issue1.ID})
+
+	// Check if dependencies left is correct
+	left, err := issues_model.IssueNoDependenciesLeft(db.DefaultContext, issue1)
+	require.NoError(t, err)
+	assert.False(t, left)
+
+	// Close #2 and check again
+	_, err = issues_model.ChangeIssueStatus(db.DefaultContext, issue2, user1, true)
+	require.NoError(t, err)
+
+	left, err = issues_model.IssueNoDependenciesLeft(db.DefaultContext, issue1)
+	require.NoError(t, err)
+	assert.True(t, left)
+
+	// Test removing the dependency
+	err = issues_model.RemoveIssueDependency(db.DefaultContext, user1, issue1, issue2, issues_model.DependencyTypeBlockedBy)
+	require.NoError(t, err)
+}
diff --git a/models/issues/issue.go b/models/issues/issue.go
new file mode 100644
index 0000000..f7379b7
--- /dev/null
+++ b/models/issues/issue.go
@@ -0,0 +1,939 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"regexp"
+	"slices"
+
+	"code.gitea.io/gitea/models/db"
+	project_model "code.gitea.io/gitea/models/project"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrIssueNotExist represents a "IssueNotExist" kind of error.
+type ErrIssueNotExist struct {
+	ID     int64
+	RepoID int64
+	Index  int64
+}
+
+// IsErrIssueNotExist checks if an error is a ErrIssueNotExist.
+func IsErrIssueNotExist(err error) bool {
+	_, ok := err.(ErrIssueNotExist)
+	return ok
+}
+
+func (err ErrIssueNotExist) Error() string {
+	return fmt.Sprintf("issue does not exist [id: %d, repo_id: %d, index: %d]", err.ID, err.RepoID, err.Index)
+}
+
+func (err ErrIssueNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrIssueIsClosed represents a "IssueIsClosed" kind of error.
+type ErrIssueIsClosed struct {
+	ID     int64
+	RepoID int64
+	Index  int64
+}
+
+// IsErrIssueIsClosed checks if an error is a ErrIssueNotExist.
+func IsErrIssueIsClosed(err error) bool {
+	_, ok := err.(ErrIssueIsClosed)
+	return ok
+}
+
+func (err ErrIssueIsClosed) Error() string {
+	return fmt.Sprintf("issue is closed [id: %d, repo_id: %d, index: %d]", err.ID, err.RepoID, err.Index)
+}
+
+// ErrNewIssueInsert is used when the INSERT statement in newIssue fails
+type ErrNewIssueInsert struct {
+	OriginalError error
+}
+
+// IsErrNewIssueInsert checks if an error is a ErrNewIssueInsert.
+func IsErrNewIssueInsert(err error) bool {
+	_, ok := err.(ErrNewIssueInsert)
+	return ok
+}
+
+func (err ErrNewIssueInsert) Error() string {
+	return err.OriginalError.Error()
+}
+
+// ErrIssueWasClosed is used when close a closed issue
+type ErrIssueWasClosed struct {
+	ID    int64
+	Index int64
+}
+
+// IsErrIssueWasClosed checks if an error is a ErrIssueWasClosed.
+func IsErrIssueWasClosed(err error) bool {
+	_, ok := err.(ErrIssueWasClosed)
+	return ok
+}
+
+func (err ErrIssueWasClosed) Error() string {
+	return fmt.Sprintf("Issue [%d] %d was already closed", err.ID, err.Index)
+}
+
+var ErrIssueAlreadyChanged = util.NewInvalidArgumentErrorf("the issue is already changed")
+
+// Issue represents an issue or pull request of repository.
+type Issue struct {
+	ID                int64                  `xorm:"pk autoincr"`
+	RepoID            int64                  `xorm:"INDEX UNIQUE(repo_index)"`
+	Repo              *repo_model.Repository `xorm:"-"`
+	Index             int64                  `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+	PosterID          int64                  `xorm:"INDEX"`
+	Poster            *user_model.User       `xorm:"-"`
+	OriginalAuthor    string
+	OriginalAuthorID  int64                  `xorm:"index"`
+	Title             string                 `xorm:"name"`
+	Content           string                 `xorm:"LONGTEXT"`
+	RenderedContent   template.HTML          `xorm:"-"`
+	ContentVersion    int                    `xorm:"NOT NULL DEFAULT 0"`
+	Labels            []*Label               `xorm:"-"`
+	isLabelsLoaded    bool                   `xorm:"-"`
+	MilestoneID       int64                  `xorm:"INDEX"`
+	Milestone         *Milestone             `xorm:"-"`
+	isMilestoneLoaded bool                   `xorm:"-"`
+	Project           *project_model.Project `xorm:"-"`
+	Priority          int
+	AssigneeID        int64            `xorm:"-"`
+	Assignee          *user_model.User `xorm:"-"`
+	isAssigneeLoaded  bool             `xorm:"-"`
+	IsClosed          bool             `xorm:"INDEX"`
+	IsRead            bool             `xorm:"-"`
+	IsPull            bool             `xorm:"INDEX"` // Indicates whether is a pull request or not.
+	PullRequest       *PullRequest     `xorm:"-"`
+	NumComments       int
+	Ref               string
+	PinOrder          int `xorm:"DEFAULT 0"`
+
+	DeadlineUnix timeutil.TimeStamp `xorm:"INDEX"`
+
+	Created timeutil.TimeStampNano
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	ClosedUnix  timeutil.TimeStamp `xorm:"INDEX"`
+	NoAutoTime  bool               `xorm:"-"`
+
+	Attachments         []*repo_model.Attachment `xorm:"-"`
+	isAttachmentsLoaded bool                     `xorm:"-"`
+	Comments            CommentList              `xorm:"-"`
+	Reactions           ReactionList             `xorm:"-"`
+	TotalTrackedTime    int64                    `xorm:"-"`
+	Assignees           []*user_model.User       `xorm:"-"`
+
+	// IsLocked limits commenting abilities to users on an issue
+	// with write access
+	IsLocked bool `xorm:"NOT NULL DEFAULT false"`
+
+	// For view issue page.
+	ShowRole RoleDescriptor `xorm:"-"`
+}
+
+var (
+	issueTasksPat     = regexp.MustCompile(`(^|\n)\s*[-*]\s*\[[\sxX]\]`)
+	issueTasksDonePat = regexp.MustCompile(`(^|\n)\s*[-*]\s*\[[xX]\]`)
+)
+
+// IssueIndex represents the issue index table
+type IssueIndex db.ResourceIndex
+
+func init() {
+	db.RegisterModel(new(Issue))
+	db.RegisterModel(new(IssueIndex))
+}
+
+// LoadTotalTimes load total tracked time
+func (issue *Issue) LoadTotalTimes(ctx context.Context) (err error) {
+	opts := FindTrackedTimesOptions{IssueID: issue.ID}
+	issue.TotalTrackedTime, err = opts.toSession(db.GetEngine(ctx)).SumInt(&TrackedTime{}, "time")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// IsOverdue checks if the issue is overdue
+func (issue *Issue) IsOverdue() bool {
+	if issue.IsClosed {
+		return issue.ClosedUnix >= issue.DeadlineUnix
+	}
+	return timeutil.TimeStampNow() >= issue.DeadlineUnix
+}
+
+// LoadRepo loads issue's repository
+func (issue *Issue) LoadRepo(ctx context.Context) (err error) {
+	if issue.Repo == nil && issue.RepoID != 0 {
+		issue.Repo, err = repo_model.GetRepositoryByID(ctx, issue.RepoID)
+		if err != nil {
+			return fmt.Errorf("getRepositoryByID [%d]: %w", issue.RepoID, err)
+		}
+	}
+	return nil
+}
+
+func (issue *Issue) LoadAttachments(ctx context.Context) (err error) {
+	if issue.isAttachmentsLoaded || issue.Attachments != nil {
+		return nil
+	}
+
+	issue.Attachments, err = repo_model.GetAttachmentsByIssueID(ctx, issue.ID)
+	if err != nil {
+		return fmt.Errorf("getAttachmentsByIssueID [%d]: %w", issue.ID, err)
+	}
+	issue.isAttachmentsLoaded = true
+	return nil
+}
+
+// IsTimetrackerEnabled returns true if the repo enables timetracking
+func (issue *Issue) IsTimetrackerEnabled(ctx context.Context) bool {
+	if err := issue.LoadRepo(ctx); err != nil {
+		log.Error(fmt.Sprintf("loadRepo: %v", err))
+		return false
+	}
+	return issue.Repo.IsTimetrackerEnabled(ctx)
+}
+
+// LoadPoster loads poster
+func (issue *Issue) LoadPoster(ctx context.Context) (err error) {
+	if issue.Poster == nil && issue.PosterID != 0 {
+		issue.Poster, err = user_model.GetPossibleUserByID(ctx, issue.PosterID)
+		if err != nil {
+			issue.PosterID = user_model.GhostUserID
+			issue.Poster = user_model.NewGhostUser()
+			if !user_model.IsErrUserNotExist(err) {
+				return fmt.Errorf("getUserByID.(poster) [%d]: %w", issue.PosterID, err)
+			}
+			return nil
+		}
+	}
+	return err
+}
+
+// LoadPullRequest loads pull request info
+func (issue *Issue) LoadPullRequest(ctx context.Context) (err error) {
+	if issue.IsPull {
+		if issue.PullRequest == nil && issue.ID != 0 {
+			issue.PullRequest, err = GetPullRequestByIssueID(ctx, issue.ID)
+			if err != nil {
+				if IsErrPullRequestNotExist(err) {
+					return err
+				}
+				return fmt.Errorf("getPullRequestByIssueID [%d]: %w", issue.ID, err)
+			}
+		}
+		if issue.PullRequest != nil {
+			issue.PullRequest.Issue = issue
+		}
+	}
+	return nil
+}
+
+func (issue *Issue) loadComments(ctx context.Context) (err error) {
+	return issue.loadCommentsByType(ctx, CommentTypeUndefined)
+}
+
+// LoadDiscussComments loads discuss comments
+func (issue *Issue) LoadDiscussComments(ctx context.Context) error {
+	return issue.loadCommentsByType(ctx, CommentTypeComment)
+}
+
+func (issue *Issue) loadCommentsByType(ctx context.Context, tp CommentType) (err error) {
+	if issue.Comments != nil {
+		return nil
+	}
+	issue.Comments, err = FindComments(ctx, &FindCommentsOptions{
+		IssueID: issue.ID,
+		Type:    tp,
+	})
+	return err
+}
+
+func (issue *Issue) loadReactions(ctx context.Context) (err error) {
+	if issue.Reactions != nil {
+		return nil
+	}
+	reactions, _, err := FindReactions(ctx, FindReactionsOptions{
+		IssueID: issue.ID,
+	})
+	if err != nil {
+		return err
+	}
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+	// Load reaction user data
+	if _, err := reactions.LoadUsers(ctx, issue.Repo); err != nil {
+		return err
+	}
+
+	// Cache comments to map
+	comments := make(map[int64]*Comment)
+	for _, comment := range issue.Comments {
+		comments[comment.ID] = comment
+	}
+	// Add reactions either to issue or comment
+	for _, react := range reactions {
+		if react.CommentID == 0 {
+			issue.Reactions = append(issue.Reactions, react)
+		} else if comment, ok := comments[react.CommentID]; ok {
+			comment.Reactions = append(comment.Reactions, react)
+		}
+	}
+	return nil
+}
+
+// LoadMilestone load milestone of this issue.
+func (issue *Issue) LoadMilestone(ctx context.Context) (err error) {
+	if !issue.isMilestoneLoaded && (issue.Milestone == nil || issue.Milestone.ID != issue.MilestoneID) && issue.MilestoneID > 0 {
+		issue.Milestone, err = GetMilestoneByRepoID(ctx, issue.RepoID, issue.MilestoneID)
+		if err != nil && !IsErrMilestoneNotExist(err) {
+			return fmt.Errorf("getMilestoneByRepoID [repo_id: %d, milestone_id: %d]: %w", issue.RepoID, issue.MilestoneID, err)
+		}
+		issue.isMilestoneLoaded = true
+	}
+	return nil
+}
+
+// LoadAttributes loads the attribute of this issue.
+func (issue *Issue) LoadAttributes(ctx context.Context) (err error) {
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadPoster(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadLabels(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadMilestone(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadProject(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadAssignees(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadPullRequest(ctx); err != nil && !IsErrPullRequestNotExist(err) {
+		// It is possible pull request is not yet created.
+		return err
+	}
+
+	if err = issue.LoadAttachments(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.loadComments(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.Comments.LoadAttributes(ctx); err != nil {
+		return err
+	}
+	if issue.IsTimetrackerEnabled(ctx) {
+		if err = issue.LoadTotalTimes(ctx); err != nil {
+			return err
+		}
+	}
+
+	return issue.loadReactions(ctx)
+}
+
+func (issue *Issue) ResetAttributesLoaded() {
+	issue.isLabelsLoaded = false
+	issue.isMilestoneLoaded = false
+	issue.isAttachmentsLoaded = false
+	issue.isAssigneeLoaded = false
+}
+
+// GetIsRead load the `IsRead` field of the issue
+func (issue *Issue) GetIsRead(ctx context.Context, userID int64) error {
+	issueUser := &IssueUser{IssueID: issue.ID, UID: userID}
+	if has, err := db.GetEngine(ctx).Get(issueUser); err != nil {
+		return err
+	} else if !has {
+		issue.IsRead = false
+		return nil
+	}
+	issue.IsRead = issueUser.IsRead
+	return nil
+}
+
+// APIURL returns the absolute APIURL to this issue.
+func (issue *Issue) APIURL(ctx context.Context) string {
+	if issue.Repo == nil {
+		err := issue.LoadRepo(ctx)
+		if err != nil {
+			log.Error("Issue[%d].APIURL(): %v", issue.ID, err)
+			return ""
+		}
+	}
+	return fmt.Sprintf("%s/issues/%d", issue.Repo.APIURL(), issue.Index)
+}
+
+// HTMLURL returns the absolute URL to this issue.
+func (issue *Issue) HTMLURL() string {
+	var path string
+	if issue.IsPull {
+		path = "pulls"
+	} else {
+		path = "issues"
+	}
+	return fmt.Sprintf("%s/%s/%d", issue.Repo.HTMLURL(), path, issue.Index)
+}
+
+// Link returns the issue's relative URL.
+func (issue *Issue) Link() string {
+	var path string
+	if issue.IsPull {
+		path = "pulls"
+	} else {
+		path = "issues"
+	}
+	return fmt.Sprintf("%s/%s/%d", issue.Repo.Link(), path, issue.Index)
+}
+
+// DiffURL returns the absolute URL to this diff
+func (issue *Issue) DiffURL() string {
+	if issue.IsPull {
+		return fmt.Sprintf("%s/pulls/%d.diff", issue.Repo.HTMLURL(), issue.Index)
+	}
+	return ""
+}
+
+// PatchURL returns the absolute URL to this patch
+func (issue *Issue) PatchURL() string {
+	if issue.IsPull {
+		return fmt.Sprintf("%s/pulls/%d.patch", issue.Repo.HTMLURL(), issue.Index)
+	}
+	return ""
+}
+
+// State returns string representation of issue status.
+func (issue *Issue) State() api.StateType {
+	if issue.IsClosed {
+		return api.StateClosed
+	}
+	return api.StateOpen
+}
+
+// HashTag returns unique hash tag for issue.
+func (issue *Issue) HashTag() string {
+	return fmt.Sprintf("issue-%d", issue.ID)
+}
+
+// IsPoster returns true if given user by ID is the poster.
+func (issue *Issue) IsPoster(uid int64) bool {
+	return issue.OriginalAuthorID == 0 && issue.PosterID == uid
+}
+
+// GetTasks returns the amount of tasks in the issues content
+func (issue *Issue) GetTasks() int {
+	return len(issueTasksPat.FindAllStringIndex(issue.Content, -1))
+}
+
+// GetTasksDone returns the amount of completed tasks in the issues content
+func (issue *Issue) GetTasksDone() int {
+	return len(issueTasksDonePat.FindAllStringIndex(issue.Content, -1))
+}
+
+// GetLastEventTimestamp returns the last user visible event timestamp, either the creation of this issue or the close.
+func (issue *Issue) GetLastEventTimestamp() timeutil.TimeStamp {
+	if issue.IsClosed {
+		return issue.ClosedUnix
+	}
+	return issue.CreatedUnix
+}
+
+// GetLastEventLabel returns the localization label for the current issue.
+func (issue *Issue) GetLastEventLabel() string {
+	if issue.IsClosed {
+		if issue.IsPull && issue.PullRequest.HasMerged {
+			return "repo.pulls.merged_by"
+		}
+		return "repo.issues.closed_by"
+	}
+	return "repo.issues.opened_by"
+}
+
+// GetLastComment return last comment for the current issue.
+func (issue *Issue) GetLastComment(ctx context.Context) (*Comment, error) {
+	var c Comment
+	exist, err := db.GetEngine(ctx).Where("type = ?", CommentTypeComment).
+		And("issue_id = ?", issue.ID).Desc("created_unix").Get(&c)
+	if err != nil {
+		return nil, err
+	}
+	if !exist {
+		return nil, nil
+	}
+	return &c, nil
+}
+
+// GetLastEventLabelFake returns the localization label for the current issue without providing a link in the username.
+func (issue *Issue) GetLastEventLabelFake() string {
+	if issue.IsClosed {
+		if issue.IsPull && issue.PullRequest.HasMerged {
+			return "repo.pulls.merged_by_fake"
+		}
+		return "repo.issues.closed_by_fake"
+	}
+	return "repo.issues.opened_by_fake"
+}
+
+// GetIssueByIndex returns raw issue without loading attributes by index in a repository.
+func GetIssueByIndex(ctx context.Context, repoID, index int64) (*Issue, error) {
+	if index < 1 {
+		return nil, ErrIssueNotExist{0, repoID, index}
+	}
+	issue := &Issue{
+		RepoID: repoID,
+		Index:  index,
+	}
+	has, err := db.GetEngine(ctx).Get(issue)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrIssueNotExist{0, repoID, index}
+	}
+	return issue, nil
+}
+
+// GetIssueWithAttrsByIndex returns issue by index in a repository.
+func GetIssueWithAttrsByIndex(ctx context.Context, repoID, index int64) (*Issue, error) {
+	issue, err := GetIssueByIndex(ctx, repoID, index)
+	if err != nil {
+		return nil, err
+	}
+	return issue, issue.LoadAttributes(ctx)
+}
+
+// GetIssueByID returns an issue by given ID.
+func GetIssueByID(ctx context.Context, id int64) (*Issue, error) {
+	issue := new(Issue)
+	has, err := db.GetEngine(ctx).ID(id).Get(issue)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrIssueNotExist{id, 0, 0}
+	}
+	return issue, nil
+}
+
+// GetIssuesByIDs return issues with the given IDs.
+// If keepOrder is true, the order of the returned issues will be the same as the given IDs.
+func GetIssuesByIDs(ctx context.Context, issueIDs []int64, keepOrder ...bool) (IssueList, error) {
+	issues := make([]*Issue, 0, len(issueIDs))
+
+	if err := db.GetEngine(ctx).In("id", issueIDs).Find(&issues); err != nil {
+		return nil, err
+	}
+
+	if len(keepOrder) > 0 && keepOrder[0] {
+		m := make(map[int64]*Issue, len(issues))
+		appended := container.Set[int64]{}
+		for _, issue := range issues {
+			m[issue.ID] = issue
+		}
+		issues = issues[:0]
+		for _, id := range issueIDs {
+			if issue, ok := m[id]; ok && !appended.Contains(id) { // make sure the id is existed and not appended
+				appended.Add(id)
+				issues = append(issues, issue)
+			}
+		}
+	}
+
+	return issues, nil
+}
+
+// GetIssueIDsByRepoID returns all issue ids by repo id
+func GetIssueIDsByRepoID(ctx context.Context, repoID int64) ([]int64, error) {
+	ids := make([]int64, 0, 10)
+	err := db.GetEngine(ctx).Table("issue").Cols("id").Where("repo_id = ?", repoID).Find(&ids)
+	return ids, err
+}
+
+// GetParticipantsIDsByIssueID returns the IDs of all users who participated in comments of an issue,
+// but skips joining with `user` for performance reasons.
+// User permissions must be verified elsewhere if required.
+func GetParticipantsIDsByIssueID(ctx context.Context, issueID int64) ([]int64, error) {
+	userIDs := make([]int64, 0, 5)
+	return userIDs, db.GetEngine(ctx).
+		Table("comment").
+		Cols("poster_id").
+		Where("issue_id = ?", issueID).
+		And("type in (?,?,?)", CommentTypeComment, CommentTypeCode, CommentTypeReview).
+		Distinct("poster_id").
+		Find(&userIDs)
+}
+
+// IsUserParticipantsOfIssue return true if user is participants of an issue
+func IsUserParticipantsOfIssue(ctx context.Context, user *user_model.User, issue *Issue) bool {
+	userIDs, err := issue.GetParticipantIDsByIssue(ctx)
+	if err != nil {
+		log.Error(err.Error())
+		return false
+	}
+	return slices.Contains(userIDs, user.ID)
+}
+
+// DependencyInfo represents high level information about an issue which is a dependency of another issue.
+type DependencyInfo struct {
+	Issue                 `xorm:"extends"`
+	repo_model.Repository `xorm:"extends"`
+}
+
+// GetParticipantIDsByIssue returns all userIDs who are participated in comments of an issue and issue author
+func (issue *Issue) GetParticipantIDsByIssue(ctx context.Context) ([]int64, error) {
+	if issue == nil {
+		return nil, nil
+	}
+	userIDs := make([]int64, 0, 5)
+	if err := db.GetEngine(ctx).Table("comment").Cols("poster_id").
+		Where("`comment`.issue_id = ?", issue.ID).
+		And("`comment`.type in (?,?,?)", CommentTypeComment, CommentTypeCode, CommentTypeReview).
+		And("`user`.is_active = ?", true).
+		And("`user`.prohibit_login = ?", false).
+		Join("INNER", "`user`", "`user`.id = `comment`.poster_id").
+		Distinct("poster_id").
+		Find(&userIDs); err != nil {
+		return nil, fmt.Errorf("get poster IDs: %w", err)
+	}
+	if !slices.Contains(userIDs, issue.PosterID) {
+		return append(userIDs, issue.PosterID), nil
+	}
+	return userIDs, nil
+}
+
+// BlockedByDependencies finds all Dependencies an issue is blocked by
+func (issue *Issue) BlockedByDependencies(ctx context.Context, opts db.ListOptions) (issueDeps []*DependencyInfo, err error) {
+	sess := db.GetEngine(ctx).
+		Table("issue").
+		Join("INNER", "repository", "repository.id = issue.repo_id").
+		Join("INNER", "issue_dependency", "issue_dependency.dependency_id = issue.id").
+		Where("issue_id = ?", issue.ID).
+		// sort by repo id then created date, with the issues of the same repo at the beginning of the list
+		OrderBy("CASE WHEN issue.repo_id = ? THEN 0 ELSE issue.repo_id END, issue.created_unix DESC", issue.RepoID)
+	if opts.Page != 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+	}
+	err = sess.Find(&issueDeps)
+
+	for _, depInfo := range issueDeps {
+		depInfo.Issue.Repo = &depInfo.Repository
+	}
+
+	return issueDeps, err
+}
+
+// BlockingDependencies returns all blocking dependencies, aka all other issues a given issue blocks
+func (issue *Issue) BlockingDependencies(ctx context.Context) (issueDeps []*DependencyInfo, err error) {
+	err = db.GetEngine(ctx).
+		Table("issue").
+		Join("INNER", "repository", "repository.id = issue.repo_id").
+		Join("INNER", "issue_dependency", "issue_dependency.issue_id = issue.id").
+		Where("dependency_id = ?", issue.ID).
+		// sort by repo id then created date, with the issues of the same repo at the beginning of the list
+		OrderBy("CASE WHEN issue.repo_id = ? THEN 0 ELSE issue.repo_id END, issue.created_unix DESC", issue.RepoID).
+		Find(&issueDeps)
+
+	for _, depInfo := range issueDeps {
+		depInfo.Issue.Repo = &depInfo.Repository
+	}
+
+	return issueDeps, err
+}
+
+func migratedIssueCond(tp api.GitServiceType) builder.Cond {
+	return builder.In("issue_id",
+		builder.Select("issue.id").
+			From("issue").
+			InnerJoin("repository", "issue.repo_id = repository.id").
+			Where(builder.Eq{
+				"repository.original_service_type": tp,
+			}),
+	)
+}
+
+// RemapExternalUser ExternalUserRemappable interface
+func (issue *Issue) RemapExternalUser(externalName string, externalID, userID int64) error {
+	issue.OriginalAuthor = externalName
+	issue.OriginalAuthorID = externalID
+	issue.PosterID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (issue *Issue) GetUserID() int64 { return issue.PosterID }
+
+// GetExternalName ExternalUserRemappable interface
+func (issue *Issue) GetExternalName() string { return issue.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (issue *Issue) GetExternalID() int64 { return issue.OriginalAuthorID }
+
+// HasOriginalAuthor returns if an issue was migrated and has an original author.
+func (issue *Issue) HasOriginalAuthor() bool {
+	return issue.OriginalAuthor != "" && issue.OriginalAuthorID != 0
+}
+
+var ErrIssueMaxPinReached = util.NewInvalidArgumentErrorf("the max number of pinned issues has been readched")
+
+// IsPinned returns if a Issue is pinned
+func (issue *Issue) IsPinned() bool {
+	return issue.PinOrder != 0
+}
+
+// Pin pins a Issue
+func (issue *Issue) Pin(ctx context.Context, user *user_model.User) error {
+	// If the Issue is already pinned, we don't need to pin it twice
+	if issue.IsPinned() {
+		return nil
+	}
+
+	var maxPin int
+	_, err := db.GetEngine(ctx).SQL("SELECT MAX(pin_order) FROM issue WHERE repo_id = ? AND is_pull = ?", issue.RepoID, issue.IsPull).Get(&maxPin)
+	if err != nil {
+		return err
+	}
+
+	// Check if the maximum allowed Pins reached
+	if maxPin >= setting.Repository.Issue.MaxPinned {
+		return ErrIssueMaxPinReached
+	}
+
+	_, err = db.GetEngine(ctx).Table("issue").
+		Where("id = ?", issue.ID).
+		Update(map[string]any{
+			"pin_order": maxPin + 1,
+		})
+	if err != nil {
+		return err
+	}
+
+	// Add the pin event to the history
+	opts := &CreateCommentOptions{
+		Type:  CommentTypePin,
+		Doer:  user,
+		Repo:  issue.Repo,
+		Issue: issue,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// UnpinIssue unpins a Issue
+func (issue *Issue) Unpin(ctx context.Context, user *user_model.User) error {
+	// If the Issue is not pinned, we don't need to unpin it
+	if !issue.IsPinned() {
+		return nil
+	}
+
+	// This sets the Pin for all Issues that come after the unpined Issue to the correct value
+	_, err := db.GetEngine(ctx).Exec("UPDATE issue SET pin_order = pin_order - 1 WHERE repo_id = ? AND is_pull = ? AND pin_order > ?", issue.RepoID, issue.IsPull, issue.PinOrder)
+	if err != nil {
+		return err
+	}
+
+	_, err = db.GetEngine(ctx).Table("issue").
+		Where("id = ?", issue.ID).
+		Update(map[string]any{
+			"pin_order": 0,
+		})
+	if err != nil {
+		return err
+	}
+
+	// Add the unpin event to the history
+	opts := &CreateCommentOptions{
+		Type:  CommentTypeUnpin,
+		Doer:  user,
+		Repo:  issue.Repo,
+		Issue: issue,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// PinOrUnpin pins or unpins a Issue
+func (issue *Issue) PinOrUnpin(ctx context.Context, user *user_model.User) error {
+	if !issue.IsPinned() {
+		return issue.Pin(ctx, user)
+	}
+
+	return issue.Unpin(ctx, user)
+}
+
+// MovePin moves a Pinned Issue to a new Position
+func (issue *Issue) MovePin(ctx context.Context, newPosition int) error {
+	// If the Issue is not pinned, we can't move them
+	if !issue.IsPinned() {
+		return nil
+	}
+
+	if newPosition < 1 {
+		return fmt.Errorf("The Position can't be lower than 1")
+	}
+
+	dbctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	var maxPin int
+	_, err = db.GetEngine(dbctx).SQL("SELECT MAX(pin_order) FROM issue WHERE repo_id = ? AND is_pull = ?", issue.RepoID, issue.IsPull).Get(&maxPin)
+	if err != nil {
+		return err
+	}
+
+	// If the new Position bigger than the current Maximum, set it to the Maximum
+	if newPosition > maxPin+1 {
+		newPosition = maxPin + 1
+	}
+
+	// Lower the Position of all Pinned Issue that came after the current Position
+	_, err = db.GetEngine(dbctx).Exec("UPDATE issue SET pin_order = pin_order - 1 WHERE repo_id = ? AND is_pull = ? AND pin_order > ?", issue.RepoID, issue.IsPull, issue.PinOrder)
+	if err != nil {
+		return err
+	}
+
+	// Higher the Position of all Pinned Issues that comes after the new Position
+	_, err = db.GetEngine(dbctx).Exec("UPDATE issue SET pin_order = pin_order + 1 WHERE repo_id = ? AND is_pull = ? AND pin_order >= ?", issue.RepoID, issue.IsPull, newPosition)
+	if err != nil {
+		return err
+	}
+
+	_, err = db.GetEngine(dbctx).Table("issue").
+		Where("id = ?", issue.ID).
+		Update(map[string]any{
+			"pin_order": newPosition,
+		})
+	if err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// GetPinnedIssues returns the pinned Issues for the given Repo and type
+func GetPinnedIssues(ctx context.Context, repoID int64, isPull bool) (IssueList, error) {
+	issues := make(IssueList, 0)
+
+	err := db.GetEngine(ctx).
+		Table("issue").
+		Where("repo_id = ?", repoID).
+		And("is_pull = ?", isPull).
+		And("pin_order > 0").
+		OrderBy("pin_order").
+		Find(&issues)
+	if err != nil {
+		return nil, err
+	}
+
+	err = issues.LoadAttributes(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return issues, nil
+}
+
+// IsNewPinnedAllowed returns if a new Issue or Pull request can be pinned
+func IsNewPinAllowed(ctx context.Context, repoID int64, isPull bool) (bool, error) {
+	var maxPin int
+	_, err := db.GetEngine(ctx).SQL("SELECT COUNT(pin_order) FROM issue WHERE repo_id = ? AND is_pull = ? AND pin_order > 0", repoID, isPull).Get(&maxPin)
+	if err != nil {
+		return false, err
+	}
+
+	return maxPin < setting.Repository.Issue.MaxPinned, nil
+}
+
+// IsErrIssueMaxPinReached returns if the error is, that the User can't pin more Issues
+func IsErrIssueMaxPinReached(err error) bool {
+	return err == ErrIssueMaxPinReached
+}
+
+// InsertIssues insert issues to database
+func InsertIssues(ctx context.Context, issues ...*Issue) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	for _, issue := range issues {
+		if err := insertIssue(ctx, issue); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
+
+func insertIssue(ctx context.Context, issue *Issue) error {
+	sess := db.GetEngine(ctx)
+	if _, err := sess.NoAutoTime().Insert(issue); err != nil {
+		return err
+	}
+	issueLabels := make([]IssueLabel, 0, len(issue.Labels))
+	for _, label := range issue.Labels {
+		issueLabels = append(issueLabels, IssueLabel{
+			IssueID: issue.ID,
+			LabelID: label.ID,
+		})
+	}
+	if len(issueLabels) > 0 {
+		if _, err := sess.Insert(issueLabels); err != nil {
+			return err
+		}
+	}
+
+	for _, reaction := range issue.Reactions {
+		reaction.IssueID = issue.ID
+	}
+
+	if len(issue.Reactions) > 0 {
+		if _, err := sess.Insert(issue.Reactions); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/issues/issue_index.go b/models/issues/issue_index.go
new file mode 100644
index 0000000..9386027
--- /dev/null
+++ b/models/issues/issue_index.go
@@ -0,0 +1,39 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+func GetMaxIssueIndexForRepo(ctx context.Context, repoID int64) (int64, error) {
+	var max int64
+	if _, err := db.GetEngine(ctx).Select("MAX(`index`)").Table("issue").Where("repo_id=?", repoID).Get(&max); err != nil {
+		return 0, err
+	}
+	return max, nil
+}
+
+// RecalculateIssueIndexForRepo create issue_index for repo if not exist and
+// update it based on highest index of existing issues assigned to a repo
+func RecalculateIssueIndexForRepo(ctx context.Context, repoID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	max, err := GetMaxIssueIndexForRepo(ctx, repoID)
+	if err != nil {
+		return err
+	}
+
+	if err = db.SyncMaxResourceIndex(ctx, "issue_index", repoID, max); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
diff --git a/models/issues/issue_index_test.go b/models/issues/issue_index_test.go
new file mode 100644
index 0000000..eb79a08
--- /dev/null
+++ b/models/issues/issue_index_test.go
@@ -0,0 +1,39 @@
+// Copyright 2024 The Forgejo Authors
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetMaxIssueIndexForRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	maxPR, err := issues_model.GetMaxIssueIndexForRepo(db.DefaultContext, repo.ID)
+	require.NoError(t, err)
+
+	issue := testCreateIssue(t, repo.ID, repo.OwnerID, "title1", "content1", false)
+	assert.Greater(t, issue.Index, maxPR)
+
+	maxPR, err = issues_model.GetMaxIssueIndexForRepo(db.DefaultContext, repo.ID)
+	require.NoError(t, err)
+
+	pull := testCreateIssue(t, repo.ID, repo.OwnerID, "title2", "content2", true)
+	assert.Greater(t, pull.Index, maxPR)
+
+	maxPR, err = issues_model.GetMaxIssueIndexForRepo(db.DefaultContext, repo.ID)
+	require.NoError(t, err)
+
+	assert.Equal(t, maxPR, pull.Index)
+}
diff --git a/models/issues/issue_label.go b/models/issues/issue_label.go
new file mode 100644
index 0000000..04e1fa3
--- /dev/null
+++ b/models/issues/issue_label.go
@@ -0,0 +1,507 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"sort"
+
+	"code.gitea.io/gitea/models/db"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+// IssueLabel represents an issue-label relation.
+type IssueLabel struct {
+	ID      int64 `xorm:"pk autoincr"`
+	IssueID int64 `xorm:"UNIQUE(s)"`
+	LabelID int64 `xorm:"UNIQUE(s)"`
+}
+
+// HasIssueLabel returns true if issue has been labeled.
+func HasIssueLabel(ctx context.Context, issueID, labelID int64) bool {
+	has, _ := db.GetEngine(ctx).Where("issue_id = ? AND label_id = ?", issueID, labelID).Get(new(IssueLabel))
+	return has
+}
+
+// newIssueLabel this function creates a new label it does not check if the label is valid for the issue
+// YOU MUST CHECK THIS BEFORE THIS FUNCTION
+func newIssueLabel(ctx context.Context, issue *Issue, label *Label, doer *user_model.User) (err error) {
+	if err = db.Insert(ctx, &IssueLabel{
+		IssueID: issue.ID,
+		LabelID: label.ID,
+	}); err != nil {
+		return err
+	}
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	opts := &CreateCommentOptions{
+		Type:    CommentTypeLabel,
+		Doer:    doer,
+		Repo:    issue.Repo,
+		Issue:   issue,
+		Label:   label,
+		Content: "1",
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return err
+	}
+
+	issue.Labels = append(issue.Labels, label)
+
+	return updateLabelCols(ctx, label, "num_issues", "num_closed_issue")
+}
+
+// Remove all issue labels in the given exclusive scope
+func RemoveDuplicateExclusiveIssueLabels(ctx context.Context, issue *Issue, label *Label, doer *user_model.User) (err error) {
+	scope := label.ExclusiveScope()
+	if scope == "" {
+		return nil
+	}
+
+	var toRemove []*Label
+	for _, issueLabel := range issue.Labels {
+		if label.ID != issueLabel.ID && issueLabel.ExclusiveScope() == scope {
+			toRemove = append(toRemove, issueLabel)
+		}
+	}
+
+	for _, issueLabel := range toRemove {
+		if err = deleteIssueLabel(ctx, issue, issueLabel, doer); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// NewIssueLabel creates a new issue-label relation.
+func NewIssueLabel(ctx context.Context, issue *Issue, label *Label, doer *user_model.User) (err error) {
+	if HasIssueLabel(ctx, issue.ID, label.ID) {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	// Do NOT add invalid labels
+	if issue.RepoID != label.RepoID && issue.Repo.OwnerID != label.OrgID {
+		return nil
+	}
+
+	if err = RemoveDuplicateExclusiveIssueLabels(ctx, issue, label, doer); err != nil {
+		return nil
+	}
+
+	if err = newIssueLabel(ctx, issue, label, doer); err != nil {
+		return err
+	}
+
+	if err = issue.ReloadLabels(ctx); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// newIssueLabels add labels to an issue. It will check if the labels are valid for the issue
+func newIssueLabels(ctx context.Context, issue *Issue, labels []*Label, doer *user_model.User) (err error) {
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadLabels(ctx); err != nil {
+		return err
+	}
+
+	for _, l := range labels {
+		// Don't add already present labels and invalid labels
+		if HasIssueLabel(ctx, issue.ID, l.ID) ||
+			(l.RepoID != issue.RepoID && l.OrgID != issue.Repo.OwnerID) {
+			continue
+		}
+
+		if err = RemoveDuplicateExclusiveIssueLabels(ctx, issue, l, doer); err != nil {
+			return err
+		}
+
+		if err = newIssueLabel(ctx, issue, l, doer); err != nil {
+			return fmt.Errorf("newIssueLabel: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// NewIssueLabels creates a list of issue-label relations.
+func NewIssueLabels(ctx context.Context, issue *Issue, labels []*Label, doer *user_model.User) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = newIssueLabels(ctx, issue, labels, doer); err != nil {
+		return err
+	}
+
+	if err = issue.ReloadLabels(ctx); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func deleteIssueLabel(ctx context.Context, issue *Issue, label *Label, doer *user_model.User) (err error) {
+	if count, err := db.DeleteByBean(ctx, &IssueLabel{
+		IssueID: issue.ID,
+		LabelID: label.ID,
+	}); err != nil {
+		return err
+	} else if count == 0 {
+		return nil
+	}
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	opts := &CreateCommentOptions{
+		Type:  CommentTypeLabel,
+		Doer:  doer,
+		Repo:  issue.Repo,
+		Issue: issue,
+		Label: label,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return err
+	}
+
+	return updateLabelCols(ctx, label, "num_issues", "num_closed_issue")
+}
+
+// DeleteIssueLabel deletes issue-label relation.
+func DeleteIssueLabel(ctx context.Context, issue *Issue, label *Label, doer *user_model.User) error {
+	if err := deleteIssueLabel(ctx, issue, label, doer); err != nil {
+		return err
+	}
+
+	return issue.ReloadLabels(ctx)
+}
+
+// DeleteLabelsByRepoID  deletes labels of some repository
+func DeleteLabelsByRepoID(ctx context.Context, repoID int64) error {
+	deleteCond := builder.Select("id").From("label").Where(builder.Eq{"label.repo_id": repoID})
+
+	if _, err := db.GetEngine(ctx).In("label_id", deleteCond).
+		Delete(&IssueLabel{}); err != nil {
+		return err
+	}
+
+	_, err := db.DeleteByBean(ctx, &Label{RepoID: repoID})
+	return err
+}
+
+// CountOrphanedLabels return count of labels witch are broken and not accessible via ui anymore
+func CountOrphanedLabels(ctx context.Context) (int64, error) {
+	noref, err := db.GetEngine(ctx).Table("label").Where("repo_id=? AND org_id=?", 0, 0).Count()
+	if err != nil {
+		return 0, err
+	}
+
+	norepo, err := db.GetEngine(ctx).Table("label").
+		Where(builder.And(
+			builder.Gt{"repo_id": 0},
+			builder.NotIn("repo_id", builder.Select("id").From("`repository`")),
+		)).
+		Count()
+	if err != nil {
+		return 0, err
+	}
+
+	noorg, err := db.GetEngine(ctx).Table("label").
+		Where(builder.And(
+			builder.Gt{"org_id": 0},
+			builder.NotIn("org_id", builder.Select("id").From("`user`")),
+		)).
+		Count()
+	if err != nil {
+		return 0, err
+	}
+
+	return noref + norepo + noorg, nil
+}
+
+// DeleteOrphanedLabels delete labels witch are broken and not accessible via ui anymore
+func DeleteOrphanedLabels(ctx context.Context) error {
+	// delete labels with no reference
+	if _, err := db.GetEngine(ctx).Table("label").Where("repo_id=? AND org_id=?", 0, 0).Delete(new(Label)); err != nil {
+		return err
+	}
+
+	// delete labels with none existing repos
+	if _, err := db.GetEngine(ctx).
+		Where(builder.And(
+			builder.Gt{"repo_id": 0},
+			builder.NotIn("repo_id", builder.Select("id").From("`repository`")),
+		)).
+		Delete(Label{}); err != nil {
+		return err
+	}
+
+	// delete labels with none existing orgs
+	if _, err := db.GetEngine(ctx).
+		Where(builder.And(
+			builder.Gt{"org_id": 0},
+			builder.NotIn("org_id", builder.Select("id").From("`user`")),
+		)).
+		Delete(Label{}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// CountOrphanedIssueLabels return count of IssueLabels witch have no label behind anymore
+func CountOrphanedIssueLabels(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Table("issue_label").
+		NotIn("label_id", builder.Select("id").From("label")).
+		Count()
+}
+
+// DeleteOrphanedIssueLabels delete IssueLabels witch have no label behind anymore
+func DeleteOrphanedIssueLabels(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).
+		NotIn("label_id", builder.Select("id").From("label")).
+		Delete(IssueLabel{})
+	return err
+}
+
+// CountIssueLabelWithOutsideLabels count label comments with outside label
+func CountIssueLabelWithOutsideLabels(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.Expr("(label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id)")).
+		Table("issue_label").
+		Join("inner", "label", "issue_label.label_id = label.id ").
+		Join("inner", "issue", "issue.id = issue_label.issue_id ").
+		Join("inner", "repository", "issue.repo_id = repository.id").
+		Count(new(IssueLabel))
+}
+
+// FixIssueLabelWithOutsideLabels fix label comments with outside label
+func FixIssueLabelWithOutsideLabels(ctx context.Context) (int64, error) {
+	res, err := db.GetEngine(ctx).Exec(`DELETE FROM issue_label WHERE issue_label.id IN (
+		SELECT il_too.id FROM (
+			SELECT il_too_too.id
+				FROM issue_label AS il_too_too
+					INNER JOIN label ON il_too_too.label_id = label.id
+					INNER JOIN issue on issue.id = il_too_too.issue_id
+					INNER JOIN repository on repository.id = issue.repo_id
+				WHERE
+					(label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id)
+	) AS il_too )`)
+	if err != nil {
+		return 0, err
+	}
+
+	return res.RowsAffected()
+}
+
+// LoadLabels only if they are not already set
+func (issue *Issue) LoadLabels(ctx context.Context) (err error) {
+	if !issue.isLabelsLoaded && issue.Labels == nil {
+		if err := issue.ReloadLabels(ctx); err != nil {
+			return err
+		}
+		issue.isLabelsLoaded = true
+	}
+	return nil
+}
+
+func (issue *Issue) ReloadLabels(ctx context.Context) (err error) {
+	if issue.ID != 0 {
+		issue.Labels, err = GetLabelsByIssueID(ctx, issue.ID)
+		if err != nil {
+			return fmt.Errorf("getLabelsByIssueID [%d]: %w", issue.ID, err)
+		}
+	}
+	return nil
+}
+
+// GetLabelsByIssueID returns all labels that belong to given issue by ID.
+func GetLabelsByIssueID(ctx context.Context, issueID int64) ([]*Label, error) {
+	var labels []*Label
+	return labels, db.GetEngine(ctx).Where("issue_label.issue_id = ?", issueID).
+		Join("LEFT", "issue_label", "issue_label.label_id = label.id").
+		Asc("label.name").
+		Find(&labels)
+}
+
+func clearIssueLabels(ctx context.Context, issue *Issue, doer *user_model.User) (err error) {
+	if err = issue.LoadLabels(ctx); err != nil {
+		return fmt.Errorf("getLabels: %w", err)
+	}
+
+	for i := range issue.Labels {
+		if err = deleteIssueLabel(ctx, issue, issue.Labels[i], doer); err != nil {
+			return fmt.Errorf("removeLabel: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// ClearIssueLabels removes all issue labels as the given user.
+// Triggers appropriate WebHooks, if any.
+func ClearIssueLabels(ctx context.Context, issue *Issue, doer *user_model.User) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return err
+	} else if err = issue.LoadPullRequest(ctx); err != nil {
+		return err
+	}
+
+	perm, err := access_model.GetUserRepoPermission(ctx, issue.Repo, doer)
+	if err != nil {
+		return err
+	}
+	if !perm.CanWriteIssuesOrPulls(issue.IsPull) {
+		return ErrRepoLabelNotExist{}
+	}
+
+	if err = clearIssueLabels(ctx, issue, doer); err != nil {
+		return err
+	}
+
+	if err = committer.Commit(); err != nil {
+		return fmt.Errorf("Commit: %w", err)
+	}
+
+	return nil
+}
+
+type labelSorter []*Label
+
+func (ts labelSorter) Len() int {
+	return len([]*Label(ts))
+}
+
+func (ts labelSorter) Less(i, j int) bool {
+	return []*Label(ts)[i].ID < []*Label(ts)[j].ID
+}
+
+func (ts labelSorter) Swap(i, j int) {
+	[]*Label(ts)[i], []*Label(ts)[j] = []*Label(ts)[j], []*Label(ts)[i]
+}
+
+// Ensure only one label of a given scope exists, with labels at the end of the
+// array getting preference over earlier ones.
+func RemoveDuplicateExclusiveLabels(labels []*Label) []*Label {
+	validLabels := make([]*Label, 0, len(labels))
+
+	for i, label := range labels {
+		scope := label.ExclusiveScope()
+		if scope != "" {
+			foundOther := false
+			for _, otherLabel := range labels[i+1:] {
+				if otherLabel.ExclusiveScope() == scope {
+					foundOther = true
+					break
+				}
+			}
+			if foundOther {
+				continue
+			}
+		}
+		validLabels = append(validLabels, label)
+	}
+
+	return validLabels
+}
+
+// ReplaceIssueLabels removes all current labels and add new labels to the issue.
+// Triggers appropriate WebHooks, if any.
+func ReplaceIssueLabels(ctx context.Context, issue *Issue, labels []*Label, doer *user_model.User) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if err = issue.LoadLabels(ctx); err != nil {
+		return err
+	}
+
+	labels = RemoveDuplicateExclusiveLabels(labels)
+
+	sort.Sort(labelSorter(labels))
+	sort.Sort(labelSorter(issue.Labels))
+
+	var toAdd, toRemove []*Label
+
+	addIndex, removeIndex := 0, 0
+	for addIndex < len(labels) && removeIndex < len(issue.Labels) {
+		addLabel := labels[addIndex]
+		removeLabel := issue.Labels[removeIndex]
+		if addLabel.ID == removeLabel.ID {
+			// Silently drop invalid labels
+			if removeLabel.RepoID != issue.RepoID && removeLabel.OrgID != issue.Repo.OwnerID {
+				toRemove = append(toRemove, removeLabel)
+			}
+
+			addIndex++
+			removeIndex++
+		} else if addLabel.ID < removeLabel.ID {
+			// Only add if the label is valid
+			if addLabel.RepoID == issue.RepoID || addLabel.OrgID == issue.Repo.OwnerID {
+				toAdd = append(toAdd, addLabel)
+			}
+			addIndex++
+		} else {
+			toRemove = append(toRemove, removeLabel)
+			removeIndex++
+		}
+	}
+	toAdd = append(toAdd, labels[addIndex:]...)
+	toRemove = append(toRemove, issue.Labels[removeIndex:]...)
+
+	if len(toAdd) > 0 {
+		if err = newIssueLabels(ctx, issue, toAdd, doer); err != nil {
+			return fmt.Errorf("addLabels: %w", err)
+		}
+	}
+
+	for _, l := range toRemove {
+		if err = deleteIssueLabel(ctx, issue, l, doer); err != nil {
+			return fmt.Errorf("removeLabel: %w", err)
+		}
+	}
+
+	if err = issue.ReloadLabels(ctx); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
diff --git a/models/issues/issue_label_test.go b/models/issues/issue_label_test.go
new file mode 100644
index 0000000..67f4874
--- /dev/null
+++ b/models/issues/issue_label_test.go
@@ -0,0 +1,138 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIssueNewIssueLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 4})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	label3 := &issues_model.Label{RepoID: 1, Name: "label3", Color: "#123"}
+	require.NoError(t, issues_model.NewLabel(db.DefaultContext, label3))
+
+	// label1 is already set, do nothing
+	// label3 is new, add it
+	require.NoError(t, issues_model.NewIssueLabels(db.DefaultContext, issue, []*issues_model.Label{label1, label3}, doer))
+
+	assert.Len(t, issue.Labels, 3)
+	// check that the pre-existing label1 is still present
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+	// check that new label3 was added
+	assert.Equal(t, label3.ID, issue.Labels[1].ID)
+	// check that pre-existing label2 was not removed
+	assert.Equal(t, label2.ID, issue.Labels[2].ID)
+}
+
+func TestIssueNewIssueLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 3})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	label := &issues_model.Label{RepoID: 1, Name: "label3", Color: "#123"}
+	require.NoError(t, issues_model.NewLabel(db.DefaultContext, label))
+
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, label, doer))
+
+	assert.Len(t, issue.Labels, 1)
+	assert.Equal(t, label.ID, issue.Labels[0].ID)
+}
+
+func TestIssueReplaceIssueLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 4})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	label3 := &issues_model.Label{RepoID: 1, Name: "label3", Color: "#123"}
+	require.NoError(t, issues_model.NewLabel(db.DefaultContext, label3))
+
+	issue.LoadLabels(db.DefaultContext)
+	assert.Len(t, issue.Labels, 2)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+	assert.Equal(t, label2.ID, issue.Labels[1].ID)
+
+	// label1 is already set, do nothing
+	// label3 is new, add it
+	// label2 is not in the list but already set, remove it
+	require.NoError(t, issues_model.ReplaceIssueLabels(db.DefaultContext, issue, []*issues_model.Label{label1, label3}, doer))
+
+	assert.Len(t, issue.Labels, 2)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+	assert.Equal(t, label3.ID, issue.Labels[1].ID)
+}
+
+func TestIssueDeleteIssueLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 4})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	issue.LoadLabels(db.DefaultContext)
+	assert.Len(t, issue.Labels, 2)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+	assert.Equal(t, label2.ID, issue.Labels[1].ID)
+
+	require.NoError(t, issues_model.DeleteIssueLabel(db.DefaultContext, issue, label2, doer))
+
+	assert.Len(t, issue.Labels, 1)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+}
+
+func TestIssueLoadLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 4})
+
+	assert.Empty(t, issue.Labels)
+	issue.LoadLabels(db.DefaultContext)
+	assert.Len(t, issue.Labels, 2)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+	assert.Equal(t, label2.ID, issue.Labels[1].ID)
+
+	unittest.AssertSuccessfulDelete(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label2.ID})
+
+	// the database change is not noticed because the labels are cached
+	issue.LoadLabels(db.DefaultContext)
+	assert.Len(t, issue.Labels, 2)
+
+	issue.ReloadLabels(db.DefaultContext)
+	assert.Len(t, issue.Labels, 1)
+	assert.Equal(t, label1.ID, issue.Labels[0].ID)
+}
+
+func TestNewIssueLabelsScope(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 18})
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 7})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 8})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	require.NoError(t, issues_model.NewIssueLabels(db.DefaultContext, issue, []*issues_model.Label{label1, label2}, doer))
+
+	assert.Len(t, issue.Labels, 1)
+	assert.Equal(t, label2.ID, issue.Labels[0].ID)
+}
diff --git a/models/issues/issue_list.go b/models/issues/issue_list.go
new file mode 100644
index 0000000..fe6c630
--- /dev/null
+++ b/models/issues/issue_list.go
@@ -0,0 +1,622 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	project_model "code.gitea.io/gitea/models/project"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+
+	"xorm.io/builder"
+)
+
+// IssueList defines a list of issues
+type IssueList []*Issue
+
+// get the repo IDs to be loaded later, these IDs are for issue.Repo and issue.PullRequest.HeadRepo
+func (issues IssueList) getRepoIDs() []int64 {
+	repoIDs := make(container.Set[int64], len(issues))
+	for _, issue := range issues {
+		if issue.Repo == nil {
+			repoIDs.Add(issue.RepoID)
+		}
+		if issue.PullRequest != nil && issue.PullRequest.HeadRepo == nil {
+			repoIDs.Add(issue.PullRequest.HeadRepoID)
+		}
+	}
+	return repoIDs.Values()
+}
+
+// LoadRepositories loads issues' all repositories
+func (issues IssueList) LoadRepositories(ctx context.Context) (repo_model.RepositoryList, error) {
+	if len(issues) == 0 {
+		return nil, nil
+	}
+
+	repoIDs := issues.getRepoIDs()
+	repoMaps := make(map[int64]*repo_model.Repository, len(repoIDs))
+	left := len(repoIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		err := db.GetEngine(ctx).
+			In("id", repoIDs[:limit]).
+			Find(&repoMaps)
+		if err != nil {
+			return nil, fmt.Errorf("find repository: %w", err)
+		}
+		left -= limit
+		repoIDs = repoIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		if issue.Repo == nil {
+			issue.Repo = repoMaps[issue.RepoID]
+		} else {
+			repoMaps[issue.RepoID] = issue.Repo
+		}
+		if issue.PullRequest != nil {
+			issue.PullRequest.BaseRepo = issue.Repo
+			if issue.PullRequest.HeadRepo == nil {
+				issue.PullRequest.HeadRepo = repoMaps[issue.PullRequest.HeadRepoID]
+			}
+		}
+	}
+	return repo_model.ValuesRepository(repoMaps), nil
+}
+
+func (issues IssueList) LoadPosters(ctx context.Context) error {
+	if len(issues) == 0 {
+		return nil
+	}
+
+	posterIDs := container.FilterSlice(issues, func(issue *Issue) (int64, bool) {
+		return issue.PosterID, issue.Poster == nil && user_model.IsValidUserID(issue.PosterID)
+	})
+
+	posterMaps, err := getPostersByIDs(ctx, posterIDs)
+	if err != nil {
+		return err
+	}
+
+	for _, issue := range issues {
+		if issue.Poster == nil {
+			issue.PosterID, issue.Poster = user_model.GetUserFromMap(issue.PosterID, posterMaps)
+		}
+	}
+	return nil
+}
+
+func getPostersByIDs(ctx context.Context, posterIDs []int64) (map[int64]*user_model.User, error) {
+	posterMaps := make(map[int64]*user_model.User, len(posterIDs))
+	left := len(posterIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		err := db.GetEngine(ctx).
+			In("id", posterIDs[:limit]).
+			Find(&posterMaps)
+		if err != nil {
+			return nil, err
+		}
+		left -= limit
+		posterIDs = posterIDs[limit:]
+	}
+	return posterMaps, nil
+}
+
+func (issues IssueList) getIssueIDs() []int64 {
+	ids := make([]int64, 0, len(issues))
+	for _, issue := range issues {
+		ids = append(ids, issue.ID)
+	}
+	return ids
+}
+
+func (issues IssueList) LoadLabels(ctx context.Context) error {
+	if len(issues) == 0 {
+		return nil
+	}
+
+	type LabelIssue struct {
+		Label      *Label      `xorm:"extends"`
+		IssueLabel *IssueLabel `xorm:"extends"`
+	}
+
+	issueLabels := make(map[int64][]*Label, len(issues)*3)
+	issueIDs := issues.getIssueIDs()
+	left := len(issueIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).Table("label").
+			Join("LEFT", "issue_label", "issue_label.label_id = label.id").
+			In("issue_label.issue_id", issueIDs[:limit]).
+			Asc("label.name").
+			Rows(new(LabelIssue))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var labelIssue LabelIssue
+			err = rows.Scan(&labelIssue)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.LoadLabels: Close: %w", err1)
+				}
+				return err
+			}
+			issueLabels[labelIssue.IssueLabel.IssueID] = append(issueLabels[labelIssue.IssueLabel.IssueID], labelIssue.Label)
+		}
+		// When there are no rows left and we try to close it.
+		// Since that is not relevant for us, we can safely ignore it.
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.LoadLabels: Close: %w", err1)
+		}
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Labels = issueLabels[issue.ID]
+		issue.isLabelsLoaded = true
+	}
+	return nil
+}
+
+func (issues IssueList) getMilestoneIDs() []int64 {
+	return container.FilterSlice(issues, func(issue *Issue) (int64, bool) {
+		return issue.MilestoneID, true
+	})
+}
+
+func (issues IssueList) LoadMilestones(ctx context.Context) error {
+	milestoneIDs := issues.getMilestoneIDs()
+	if len(milestoneIDs) == 0 {
+		return nil
+	}
+
+	milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
+	left := len(milestoneIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		err := db.GetEngine(ctx).
+			In("id", milestoneIDs[:limit]).
+			Find(&milestoneMaps)
+		if err != nil {
+			return err
+		}
+		left -= limit
+		milestoneIDs = milestoneIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Milestone = milestoneMaps[issue.MilestoneID]
+		issue.isMilestoneLoaded = true
+	}
+	return nil
+}
+
+func (issues IssueList) LoadProjects(ctx context.Context) error {
+	issueIDs := issues.getIssueIDs()
+	projectMaps := make(map[int64]*project_model.Project, len(issues))
+	left := len(issueIDs)
+
+	type projectWithIssueID struct {
+		*project_model.Project `xorm:"extends"`
+		IssueID                int64
+	}
+
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+
+		projects := make([]*projectWithIssueID, 0, limit)
+		err := db.GetEngine(ctx).
+			Table("project").
+			Select("project.*, project_issue.issue_id").
+			Join("INNER", "project_issue", "project.id = project_issue.project_id").
+			In("project_issue.issue_id", issueIDs[:limit]).
+			Find(&projects)
+		if err != nil {
+			return err
+		}
+		for _, project := range projects {
+			projectMaps[project.IssueID] = project.Project
+		}
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Project = projectMaps[issue.ID]
+	}
+	return nil
+}
+
+func (issues IssueList) LoadAssignees(ctx context.Context) error {
+	if len(issues) == 0 {
+		return nil
+	}
+
+	type AssigneeIssue struct {
+		IssueAssignee *IssueAssignees  `xorm:"extends"`
+		Assignee      *user_model.User `xorm:"extends"`
+	}
+
+	assignees := make(map[int64][]*user_model.User, len(issues))
+	issueIDs := issues.getIssueIDs()
+	left := len(issueIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).Table("issue_assignees").
+			Join("INNER", "`user`", "`user`.id = `issue_assignees`.assignee_id").
+			In("`issue_assignees`.issue_id", issueIDs[:limit]).OrderBy(user_model.GetOrderByName()).
+			Rows(new(AssigneeIssue))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var assigneeIssue AssigneeIssue
+			err = rows.Scan(&assigneeIssue)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.loadAssignees: Close: %w", err1)
+				}
+				return err
+			}
+
+			assignees[assigneeIssue.IssueAssignee.IssueID] = append(assignees[assigneeIssue.IssueAssignee.IssueID], assigneeIssue.Assignee)
+		}
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.loadAssignees: Close: %w", err1)
+		}
+		left -= limit
+		issueIDs = issueIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Assignees = assignees[issue.ID]
+		if len(issue.Assignees) > 0 {
+			issue.Assignee = issue.Assignees[0]
+		}
+		issue.isAssigneeLoaded = true
+	}
+	return nil
+}
+
+func (issues IssueList) getPullIssueIDs() []int64 {
+	ids := make([]int64, 0, len(issues))
+	for _, issue := range issues {
+		if issue.IsPull && issue.PullRequest == nil {
+			ids = append(ids, issue.ID)
+		}
+	}
+	return ids
+}
+
+// LoadPullRequests loads pull requests
+func (issues IssueList) LoadPullRequests(ctx context.Context) error {
+	issuesIDs := issues.getPullIssueIDs()
+	if len(issuesIDs) == 0 {
+		return nil
+	}
+
+	pullRequestMaps := make(map[int64]*PullRequest, len(issuesIDs))
+	left := len(issuesIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("issue_id", issuesIDs[:limit]).
+			Rows(new(PullRequest))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var pr PullRequest
+			err = rows.Scan(&pr)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.loadPullRequests: Close: %w", err1)
+				}
+				return err
+			}
+			pullRequestMaps[pr.IssueID] = &pr
+		}
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.loadPullRequests: Close: %w", err1)
+		}
+		left -= limit
+		issuesIDs = issuesIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.PullRequest = pullRequestMaps[issue.ID]
+		if issue.PullRequest != nil {
+			issue.PullRequest.Issue = issue
+		}
+	}
+	return nil
+}
+
+// LoadAttachments loads attachments
+func (issues IssueList) LoadAttachments(ctx context.Context) (err error) {
+	if len(issues) == 0 {
+		return nil
+	}
+
+	attachments := make(map[int64][]*repo_model.Attachment, len(issues))
+	issuesIDs := issues.getIssueIDs()
+	left := len(issuesIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).
+			In("issue_id", issuesIDs[:limit]).
+			Rows(new(repo_model.Attachment))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var attachment repo_model.Attachment
+			err = rows.Scan(&attachment)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.loadAttachments: Close: %w", err1)
+				}
+				return err
+			}
+			attachments[attachment.IssueID] = append(attachments[attachment.IssueID], &attachment)
+		}
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.loadAttachments: Close: %w", err1)
+		}
+		left -= limit
+		issuesIDs = issuesIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Attachments = attachments[issue.ID]
+		issue.isAttachmentsLoaded = true
+	}
+	return nil
+}
+
+func (issues IssueList) loadComments(ctx context.Context, cond builder.Cond) (err error) {
+	if len(issues) == 0 {
+		return nil
+	}
+
+	comments := make(map[int64][]*Comment, len(issues))
+	issuesIDs := issues.getIssueIDs()
+	left := len(issuesIDs)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+		rows, err := db.GetEngine(ctx).Table("comment").
+			Join("INNER", "issue", "issue.id = comment.issue_id").
+			In("issue.id", issuesIDs[:limit]).
+			Where(cond).
+			Rows(new(Comment))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var comment Comment
+			err = rows.Scan(&comment)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.loadComments: Close: %w", err1)
+				}
+				return err
+			}
+			comments[comment.IssueID] = append(comments[comment.IssueID], &comment)
+		}
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.loadComments: Close: %w", err1)
+		}
+		left -= limit
+		issuesIDs = issuesIDs[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.Comments = comments[issue.ID]
+	}
+	return nil
+}
+
+func (issues IssueList) loadTotalTrackedTimes(ctx context.Context) (err error) {
+	type totalTimesByIssue struct {
+		IssueID int64
+		Time    int64
+	}
+	if len(issues) == 0 {
+		return nil
+	}
+	trackedTimes := make(map[int64]int64, len(issues))
+
+	reposMap := make(map[int64]*repo_model.Repository, len(issues))
+	for _, issue := range issues {
+		reposMap[issue.RepoID] = issue.Repo
+	}
+	repos := repo_model.RepositoryListOfMap(reposMap)
+
+	if err := repos.LoadUnits(ctx); err != nil {
+		return err
+	}
+
+	ids := make([]int64, 0, len(issues))
+	for _, issue := range issues {
+		if issue.Repo.IsTimetrackerEnabled(ctx) {
+			ids = append(ids, issue.ID)
+		}
+	}
+
+	left := len(ids)
+	for left > 0 {
+		limit := db.DefaultMaxInSize
+		if left < limit {
+			limit = left
+		}
+
+		// select issue_id, sum(time) from tracked_time where issue_id in (<issue ids in current page>) group by issue_id
+		rows, err := db.GetEngine(ctx).Table("tracked_time").
+			Where("deleted = ?", false).
+			Select("issue_id, sum(time) as time").
+			In("issue_id", ids[:limit]).
+			GroupBy("issue_id").
+			Rows(new(totalTimesByIssue))
+		if err != nil {
+			return err
+		}
+
+		for rows.Next() {
+			var totalTime totalTimesByIssue
+			err = rows.Scan(&totalTime)
+			if err != nil {
+				if err1 := rows.Close(); err1 != nil {
+					return fmt.Errorf("IssueList.loadTotalTrackedTimes: Close: %w", err1)
+				}
+				return err
+			}
+			trackedTimes[totalTime.IssueID] = totalTime.Time
+		}
+		if err1 := rows.Close(); err1 != nil {
+			return fmt.Errorf("IssueList.loadTotalTrackedTimes: Close: %w", err1)
+		}
+		left -= limit
+		ids = ids[limit:]
+	}
+
+	for _, issue := range issues {
+		issue.TotalTrackedTime = trackedTimes[issue.ID]
+	}
+	return nil
+}
+
+// loadAttributes loads all attributes, expect for attachments and comments
+func (issues IssueList) LoadAttributes(ctx context.Context) error {
+	if _, err := issues.LoadRepositories(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: LoadRepositories: %w", err)
+	}
+
+	if err := issues.LoadPosters(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: LoadPosters: %w", err)
+	}
+
+	if err := issues.LoadLabels(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: LoadLabels: %w", err)
+	}
+
+	if err := issues.LoadMilestones(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: LoadMilestones: %w", err)
+	}
+
+	if err := issues.LoadProjects(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: loadProjects: %w", err)
+	}
+
+	if err := issues.LoadAssignees(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: loadAssignees: %w", err)
+	}
+
+	if err := issues.LoadPullRequests(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: loadPullRequests: %w", err)
+	}
+
+	if err := issues.loadTotalTrackedTimes(ctx); err != nil {
+		return fmt.Errorf("issue.loadAttributes: loadTotalTrackedTimes: %w", err)
+	}
+
+	return nil
+}
+
+// LoadComments loads comments
+func (issues IssueList) LoadComments(ctx context.Context) error {
+	return issues.loadComments(ctx, builder.NewCond())
+}
+
+// LoadDiscussComments loads discuss comments
+func (issues IssueList) LoadDiscussComments(ctx context.Context) error {
+	return issues.loadComments(ctx, builder.Eq{"comment.type": CommentTypeComment})
+}
+
+// GetApprovalCounts returns a map of issue ID to slice of approval counts
+// FIXME: only returns official counts due to double counting of non-official approvals
+func (issues IssueList) GetApprovalCounts(ctx context.Context) (map[int64][]*ReviewCount, error) {
+	rCounts := make([]*ReviewCount, 0, 2*len(issues))
+	ids := make([]int64, len(issues))
+	for i, issue := range issues {
+		ids[i] = issue.ID
+	}
+	sess := db.GetEngine(ctx).In("issue_id", ids)
+	err := sess.Select("issue_id, type, count(id) as `count`").
+		Where("official = ? AND dismissed = ?", true, false).
+		GroupBy("issue_id, type").
+		OrderBy("issue_id").
+		Table("review").
+		Find(&rCounts)
+	if err != nil {
+		return nil, err
+	}
+
+	approvalCountMap := make(map[int64][]*ReviewCount, len(issues))
+
+	for _, c := range rCounts {
+		approvalCountMap[c.IssueID] = append(approvalCountMap[c.IssueID], c)
+	}
+
+	return approvalCountMap, nil
+}
+
+func (issues IssueList) LoadIsRead(ctx context.Context, userID int64) error {
+	issueIDs := issues.getIssueIDs()
+	issueUsers := make([]*IssueUser, 0, len(issueIDs))
+	if err := db.GetEngine(ctx).Where("uid =?", userID).
+		In("issue_id", issueIDs).
+		Find(&issueUsers); err != nil {
+		return err
+	}
+
+	for _, issueUser := range issueUsers {
+		for _, issue := range issues {
+			if issue.ID == issueUser.IssueID {
+				issue.IsRead = issueUser.IsRead
+			}
+		}
+	}
+
+	return nil
+}
diff --git a/models/issues/issue_list_test.go b/models/issues/issue_list_test.go
new file mode 100644
index 0000000..32cc0fe
--- /dev/null
+++ b/models/issues/issue_list_test.go
@@ -0,0 +1,129 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIssueList_LoadRepositories(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issueList := issues_model.IssueList{
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1}),
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2}),
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 4}),
+	}
+
+	repos, err := issueList.LoadRepositories(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, repos, 2)
+	for _, issue := range issueList {
+		assert.EqualValues(t, issue.RepoID, issue.Repo.ID)
+	}
+}
+
+func TestIssueList_LoadAttributes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	setting.Service.EnableTimetracking = true
+	issueList := issues_model.IssueList{
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1}),
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 4}),
+	}
+
+	require.NoError(t, issueList.LoadAttributes(db.DefaultContext))
+	for _, issue := range issueList {
+		assert.EqualValues(t, issue.RepoID, issue.Repo.ID)
+		for _, label := range issue.Labels {
+			assert.EqualValues(t, issue.RepoID, label.RepoID)
+			unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label.ID})
+		}
+		if issue.PosterID > 0 {
+			assert.EqualValues(t, issue.PosterID, issue.Poster.ID)
+		}
+		if issue.AssigneeID > 0 {
+			assert.EqualValues(t, issue.AssigneeID, issue.Assignee.ID)
+		}
+		if issue.MilestoneID > 0 {
+			assert.EqualValues(t, issue.MilestoneID, issue.Milestone.ID)
+		}
+		if issue.IsPull {
+			assert.EqualValues(t, issue.ID, issue.PullRequest.IssueID)
+		}
+		for _, attachment := range issue.Attachments {
+			assert.EqualValues(t, issue.ID, attachment.IssueID)
+		}
+		for _, comment := range issue.Comments {
+			assert.EqualValues(t, issue.ID, comment.IssueID)
+		}
+		if issue.ID == int64(1) {
+			assert.Equal(t, int64(400), issue.TotalTrackedTime)
+			assert.NotNil(t, issue.Project)
+			assert.Equal(t, int64(1), issue.Project.ID)
+		} else {
+			assert.Nil(t, issue.Project)
+		}
+	}
+
+	require.NoError(t, issueList.LoadIsRead(db.DefaultContext, 1))
+	for _, issue := range issueList {
+		assert.Equal(t, issue.ID == 1, issue.IsRead, "unexpected is_read value for issue[%d]", issue.ID)
+	}
+}
+
+func TestIssueListLoadUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	for _, testCase := range []struct {
+		poster int64
+		user   *user_model.User
+	}{
+		{
+			poster: user_model.ActionsUserID,
+			user:   user_model.NewActionsUser(),
+		},
+		{
+			poster: user_model.GhostUserID,
+			user:   user_model.NewGhostUser(),
+		},
+		{
+			poster: doer.ID,
+			user:   doer,
+		},
+		{
+			poster: 0,
+			user:   user_model.NewGhostUser(),
+		},
+		{
+			poster: -200,
+			user:   user_model.NewGhostUser(),
+		},
+		{
+			poster: 200,
+			user:   user_model.NewGhostUser(),
+		},
+	} {
+		t.Run(testCase.user.Name, func(t *testing.T) {
+			list := issues_model.IssueList{issue}
+
+			issue.PosterID = testCase.poster
+			issue.Poster = nil
+			require.NoError(t, list.LoadPosters(db.DefaultContext))
+			require.NotNil(t, issue.Poster)
+			assert.Equal(t, testCase.user.ID, issue.Poster.ID)
+		})
+	}
+}
diff --git a/models/issues/issue_lock.go b/models/issues/issue_lock.go
new file mode 100644
index 0000000..b21629b
--- /dev/null
+++ b/models/issues/issue_lock.go
@@ -0,0 +1,66 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+)
+
+// IssueLockOptions defines options for locking and/or unlocking an issue/PR
+type IssueLockOptions struct {
+	Doer   *user_model.User
+	Issue  *Issue
+	Reason string
+}
+
+// LockIssue locks an issue. This would limit commenting abilities to
+// users with write access to the repo
+func LockIssue(ctx context.Context, opts *IssueLockOptions) error {
+	return updateIssueLock(ctx, opts, true)
+}
+
+// UnlockIssue unlocks a previously locked issue.
+func UnlockIssue(ctx context.Context, opts *IssueLockOptions) error {
+	return updateIssueLock(ctx, opts, false)
+}
+
+func updateIssueLock(ctx context.Context, opts *IssueLockOptions, lock bool) error {
+	if opts.Issue.IsLocked == lock {
+		return nil
+	}
+
+	opts.Issue.IsLocked = lock
+	var commentType CommentType
+	if opts.Issue.IsLocked {
+		commentType = CommentTypeLock
+	} else {
+		commentType = CommentTypeUnlock
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := UpdateIssueCols(ctx, opts.Issue, "is_locked"); err != nil {
+		return err
+	}
+
+	opt := &CreateCommentOptions{
+		Doer:    opts.Doer,
+		Issue:   opts.Issue,
+		Repo:    opts.Issue.Repo,
+		Type:    commentType,
+		Content: opts.Reason,
+	}
+	if _, err := CreateComment(ctx, opt); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
diff --git a/models/issues/issue_project.go b/models/issues/issue_project.go
new file mode 100644
index 0000000..835ea1d
--- /dev/null
+++ b/models/issues/issue_project.go
@@ -0,0 +1,162 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	project_model "code.gitea.io/gitea/models/project"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// LoadProject load the project the issue was assigned to
+func (issue *Issue) LoadProject(ctx context.Context) (err error) {
+	if issue.Project == nil {
+		var p project_model.Project
+		has, err := db.GetEngine(ctx).Table("project").
+			Join("INNER", "project_issue", "project.id=project_issue.project_id").
+			Where("project_issue.issue_id = ?", issue.ID).Get(&p)
+		if err != nil {
+			return err
+		} else if has {
+			issue.Project = &p
+		}
+	}
+	return err
+}
+
+func (issue *Issue) projectID(ctx context.Context) int64 {
+	var ip project_model.ProjectIssue
+	has, err := db.GetEngine(ctx).Where("issue_id=?", issue.ID).Get(&ip)
+	if err != nil || !has {
+		return 0
+	}
+	return ip.ProjectID
+}
+
+// ProjectColumnID return project column id if issue was assigned to one
+func (issue *Issue) ProjectColumnID(ctx context.Context) int64 {
+	var ip project_model.ProjectIssue
+	has, err := db.GetEngine(ctx).Where("issue_id=?", issue.ID).Get(&ip)
+	if err != nil || !has {
+		return 0
+	}
+	return ip.ProjectColumnID
+}
+
+// LoadIssuesFromColumn load issues assigned to this column
+func LoadIssuesFromColumn(ctx context.Context, b *project_model.Column) (IssueList, error) {
+	issueList, err := Issues(ctx, &IssuesOptions{
+		ProjectColumnID: b.ID,
+		ProjectID:       b.ProjectID,
+		SortType:        "project-column-sorting",
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	if b.Default {
+		issues, err := Issues(ctx, &IssuesOptions{
+			ProjectColumnID: db.NoConditionID,
+			ProjectID:       b.ProjectID,
+			SortType:        "project-column-sorting",
+		})
+		if err != nil {
+			return nil, err
+		}
+		issueList = append(issueList, issues...)
+	}
+
+	if err := issueList.LoadComments(ctx); err != nil {
+		return nil, err
+	}
+
+	return issueList, nil
+}
+
+// LoadIssuesFromColumnList load issues assigned to the columns
+func LoadIssuesFromColumnList(ctx context.Context, bs project_model.ColumnList) (map[int64]IssueList, error) {
+	issuesMap := make(map[int64]IssueList, len(bs))
+	for i := range bs {
+		il, err := LoadIssuesFromColumn(ctx, bs[i])
+		if err != nil {
+			return nil, err
+		}
+		issuesMap[bs[i].ID] = il
+	}
+	return issuesMap, nil
+}
+
+// IssueAssignOrRemoveProject changes the project associated with an issue
+// If newProjectID is 0, the issue is removed from the project
+func IssueAssignOrRemoveProject(ctx context.Context, issue *Issue, doer *user_model.User, newProjectID, newColumnID int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		oldProjectID := issue.projectID(ctx)
+
+		if err := issue.LoadRepo(ctx); err != nil {
+			return err
+		}
+
+		// Only check if we add a new project and not remove it.
+		if newProjectID > 0 {
+			newProject, err := project_model.GetProjectByID(ctx, newProjectID)
+			if err != nil {
+				return err
+			}
+			if !newProject.CanBeAccessedByOwnerRepo(issue.Repo.OwnerID, issue.Repo) {
+				return util.NewPermissionDeniedErrorf("issue %d can't be accessed by project %d", issue.ID, newProject.ID)
+			}
+			if newColumnID == 0 {
+				newDefaultColumn, err := newProject.GetDefaultColumn(ctx)
+				if err != nil {
+					return err
+				}
+				newColumnID = newDefaultColumn.ID
+			}
+		}
+
+		if _, err := db.GetEngine(ctx).Where("project_issue.issue_id=?", issue.ID).Delete(&project_model.ProjectIssue{}); err != nil {
+			return err
+		}
+
+		if oldProjectID > 0 || newProjectID > 0 {
+			if _, err := CreateComment(ctx, &CreateCommentOptions{
+				Type:         CommentTypeProject,
+				Doer:         doer,
+				Repo:         issue.Repo,
+				Issue:        issue,
+				OldProjectID: oldProjectID,
+				ProjectID:    newProjectID,
+			}); err != nil {
+				return err
+			}
+		}
+		if newProjectID == 0 {
+			return nil
+		}
+		if newColumnID == 0 {
+			panic("newColumnID must not be zero") // shouldn't happen
+		}
+
+		res := struct {
+			MaxSorting int64
+			IssueCount int64
+		}{}
+		if _, err := db.GetEngine(ctx).Select("max(sorting) as max_sorting, count(*) as issue_count").Table("project_issue").
+			Where("project_id=?", newProjectID).
+			And("project_board_id=?", newColumnID).
+			Get(&res); err != nil {
+			return err
+		}
+		newSorting := util.Iif(res.IssueCount > 0, res.MaxSorting+1, 0)
+		return db.Insert(ctx, &project_model.ProjectIssue{
+			IssueID:         issue.ID,
+			ProjectID:       newProjectID,
+			ProjectColumnID: newColumnID,
+			Sorting:         newSorting,
+		})
+	})
+}
diff --git a/models/issues/issue_search.go b/models/issues/issue_search.go
new file mode 100644
index 0000000..e9f116b
--- /dev/null
+++ b/models/issues/issue_search.go
@@ -0,0 +1,489 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// IssuesOptions represents options of an issue.
+type IssuesOptions struct { //nolint
+	Paginator          *db.ListOptions
+	RepoIDs            []int64 // overwrites RepoCond if the length is not 0
+	AllPublic          bool    // include also all public repositories
+	RepoCond           builder.Cond
+	AssigneeID         int64
+	PosterID           int64
+	MentionedID        int64
+	ReviewRequestedID  int64
+	ReviewedID         int64
+	SubscriberID       int64
+	MilestoneIDs       []int64
+	ProjectID          int64
+	ProjectColumnID    int64
+	IsClosed           optional.Option[bool]
+	IsPull             optional.Option[bool]
+	LabelIDs           []int64
+	IncludedLabelNames []string
+	ExcludedLabelNames []string
+	IncludeMilestones  []string
+	SortType           string
+	IssueIDs           []int64
+	UpdatedAfterUnix   int64
+	UpdatedBeforeUnix  int64
+	// prioritize issues from this repo
+	PriorityRepoID int64
+	IsArchived     optional.Option[bool]
+	Org            *organization.Organization // issues permission scope
+	Team           *organization.Team         // issues permission scope
+	User           *user_model.User           // issues permission scope
+}
+
+// applySorts sort an issues-related session based on the provided
+// sortType string
+func applySorts(sess *xorm.Session, sortType string, priorityRepoID int64) {
+	switch sortType {
+	case "oldest":
+		sess.Asc("issue.created_unix").Asc("issue.id")
+	case "recentupdate":
+		sess.Desc("issue.updated_unix").Desc("issue.created_unix").Desc("issue.id")
+	case "leastupdate":
+		sess.Asc("issue.updated_unix").Asc("issue.created_unix").Asc("issue.id")
+	case "mostcomment":
+		sess.Desc("issue.num_comments").Desc("issue.created_unix").Desc("issue.id")
+	case "leastcomment":
+		sess.Asc("issue.num_comments").Desc("issue.created_unix").Desc("issue.id")
+	case "priority":
+		sess.Desc("issue.priority").Desc("issue.created_unix").Desc("issue.id")
+	case "nearduedate":
+		// 253370764800 is 01/01/9999 @ 12:00am (UTC)
+		sess.Join("LEFT", "milestone", "issue.milestone_id = milestone.id").
+			OrderBy("CASE " +
+				"WHEN issue.deadline_unix = 0 AND (milestone.deadline_unix = 0 OR milestone.deadline_unix IS NULL) THEN 253370764800 " +
+				"WHEN milestone.deadline_unix = 0 OR milestone.deadline_unix IS NULL THEN issue.deadline_unix " +
+				"WHEN milestone.deadline_unix < issue.deadline_unix OR issue.deadline_unix = 0 THEN milestone.deadline_unix " +
+				"ELSE issue.deadline_unix END ASC").
+			Desc("issue.created_unix").
+			Desc("issue.id")
+	case "farduedate":
+		sess.Join("LEFT", "milestone", "issue.milestone_id = milestone.id").
+			OrderBy("CASE " +
+				"WHEN milestone.deadline_unix IS NULL THEN issue.deadline_unix " +
+				"WHEN milestone.deadline_unix < issue.deadline_unix OR issue.deadline_unix = 0 THEN milestone.deadline_unix " +
+				"ELSE issue.deadline_unix END DESC").
+			Desc("issue.created_unix").
+			Desc("issue.id")
+	case "priorityrepo":
+		sess.OrderBy("CASE "+
+			"WHEN issue.repo_id = ? THEN 1 "+
+			"ELSE 2 END ASC", priorityRepoID).
+			Desc("issue.created_unix").
+			Desc("issue.id")
+	case "project-column-sorting":
+		sess.Asc("project_issue.sorting").Desc("issue.created_unix").Desc("issue.id")
+	default:
+		sess.Desc("issue.created_unix").Desc("issue.id")
+	}
+}
+
+func applyLimit(sess *xorm.Session, opts *IssuesOptions) {
+	if opts.Paginator == nil || opts.Paginator.IsListAll() {
+		return
+	}
+
+	start := 0
+	if opts.Paginator.Page > 1 {
+		start = (opts.Paginator.Page - 1) * opts.Paginator.PageSize
+	}
+	sess.Limit(opts.Paginator.PageSize, start)
+}
+
+func applyLabelsCondition(sess *xorm.Session, opts *IssuesOptions) {
+	if len(opts.LabelIDs) > 0 {
+		if opts.LabelIDs[0] == 0 {
+			sess.Where("issue.id NOT IN (SELECT issue_id FROM issue_label)")
+		} else {
+			// deduplicate the label IDs for inclusion and exclusion
+			includedLabelIDs := make(container.Set[int64])
+			excludedLabelIDs := make(container.Set[int64])
+			for _, labelID := range opts.LabelIDs {
+				if labelID > 0 {
+					includedLabelIDs.Add(labelID)
+				} else if labelID < 0 { // 0 is not supported here, so just ignore it
+					excludedLabelIDs.Add(-labelID)
+				}
+			}
+			// ... and use them in a subquery of the form :
+			//  where (select count(*) from issue_label where issue_id=issue.id and label_id in (2, 4, 6)) = 3
+			// This equality is guaranteed thanks to unique index (issue_id,label_id) on table issue_label.
+			if len(includedLabelIDs) > 0 {
+				subQuery := builder.Select("count(*)").From("issue_label").Where(builder.Expr("issue_id = issue.id")).
+					And(builder.In("label_id", includedLabelIDs.Values()))
+				sess.Where(builder.Eq{strconv.Itoa(len(includedLabelIDs)): subQuery})
+			}
+			// or (select count(*)...) = 0 for excluded labels
+			if len(excludedLabelIDs) > 0 {
+				subQuery := builder.Select("count(*)").From("issue_label").Where(builder.Expr("issue_id = issue.id")).
+					And(builder.In("label_id", excludedLabelIDs.Values()))
+				sess.Where(builder.Eq{"0": subQuery})
+			}
+		}
+	}
+
+	if len(opts.IncludedLabelNames) > 0 {
+		sess.In("issue.id", BuildLabelNamesIssueIDsCondition(opts.IncludedLabelNames))
+	}
+
+	if len(opts.ExcludedLabelNames) > 0 {
+		sess.And(builder.NotIn("issue.id", BuildLabelNamesIssueIDsCondition(opts.ExcludedLabelNames)))
+	}
+}
+
+func applyMilestoneCondition(sess *xorm.Session, opts *IssuesOptions) {
+	if len(opts.MilestoneIDs) == 1 && opts.MilestoneIDs[0] == db.NoConditionID {
+		sess.And("issue.milestone_id = 0")
+	} else if len(opts.MilestoneIDs) > 0 {
+		sess.In("issue.milestone_id", opts.MilestoneIDs)
+	}
+
+	if len(opts.IncludeMilestones) > 0 {
+		sess.In("issue.milestone_id",
+			builder.Select("id").
+				From("milestone").
+				Where(builder.In("name", opts.IncludeMilestones)))
+	}
+}
+
+func applyProjectCondition(sess *xorm.Session, opts *IssuesOptions) {
+	if opts.ProjectID > 0 { // specific project
+		sess.Join("INNER", "project_issue", "issue.id = project_issue.issue_id").
+			And("project_issue.project_id=?", opts.ProjectID)
+	} else if opts.ProjectID == db.NoConditionID { // show those that are in no project
+		sess.And(builder.NotIn("issue.id", builder.Select("issue_id").From("project_issue").And(builder.Neq{"project_id": 0})))
+	}
+	// opts.ProjectID == 0 means all projects,
+	// do not need to apply any condition
+}
+
+func applyProjectColumnCondition(sess *xorm.Session, opts *IssuesOptions) {
+	// opts.ProjectColumnID == 0 means all project columns,
+	// do not need to apply any condition
+	if opts.ProjectColumnID > 0 {
+		sess.In("issue.id", builder.Select("issue_id").From("project_issue").Where(builder.Eq{"project_board_id": opts.ProjectColumnID}))
+	} else if opts.ProjectColumnID == db.NoConditionID {
+		sess.In("issue.id", builder.Select("issue_id").From("project_issue").Where(builder.Eq{"project_board_id": 0}))
+	}
+}
+
+func applyRepoConditions(sess *xorm.Session, opts *IssuesOptions) {
+	if len(opts.RepoIDs) == 1 {
+		opts.RepoCond = builder.Eq{"issue.repo_id": opts.RepoIDs[0]}
+	} else if len(opts.RepoIDs) > 1 {
+		opts.RepoCond = builder.In("issue.repo_id", opts.RepoIDs)
+	}
+	if opts.AllPublic {
+		if opts.RepoCond == nil {
+			opts.RepoCond = builder.NewCond()
+		}
+		opts.RepoCond = opts.RepoCond.Or(builder.In("issue.repo_id", builder.Select("id").From("repository").Where(builder.Eq{"is_private": false})))
+	}
+	if opts.RepoCond != nil {
+		sess.And(opts.RepoCond)
+	}
+}
+
+func applyConditions(sess *xorm.Session, opts *IssuesOptions) {
+	if len(opts.IssueIDs) > 0 {
+		sess.In("issue.id", opts.IssueIDs)
+	}
+
+	applyRepoConditions(sess, opts)
+
+	if opts.IsClosed.Has() {
+		sess.And("issue.is_closed=?", opts.IsClosed.Value())
+	}
+
+	if opts.AssigneeID > 0 {
+		applyAssigneeCondition(sess, opts.AssigneeID)
+	} else if opts.AssigneeID == db.NoConditionID {
+		sess.Where("issue.id NOT IN (SELECT issue_id FROM issue_assignees)")
+	}
+
+	if opts.PosterID > 0 {
+		applyPosterCondition(sess, opts.PosterID)
+	}
+
+	if opts.MentionedID > 0 {
+		applyMentionedCondition(sess, opts.MentionedID)
+	}
+
+	if opts.ReviewRequestedID > 0 {
+		applyReviewRequestedCondition(sess, opts.ReviewRequestedID)
+	}
+
+	if opts.ReviewedID > 0 {
+		applyReviewedCondition(sess, opts.ReviewedID)
+	}
+
+	if opts.SubscriberID > 0 {
+		applySubscribedCondition(sess, opts.SubscriberID)
+	}
+
+	applyMilestoneCondition(sess, opts)
+
+	if opts.UpdatedAfterUnix != 0 {
+		sess.And(builder.Gte{"issue.updated_unix": opts.UpdatedAfterUnix})
+	}
+	if opts.UpdatedBeforeUnix != 0 {
+		sess.And(builder.Lte{"issue.updated_unix": opts.UpdatedBeforeUnix})
+	}
+
+	applyProjectCondition(sess, opts)
+
+	applyProjectColumnCondition(sess, opts)
+
+	if opts.IsPull.Has() {
+		sess.And("issue.is_pull=?", opts.IsPull.Value())
+	}
+
+	if opts.IsArchived.Has() {
+		sess.And(builder.Eq{"repository.is_archived": opts.IsArchived.Value()})
+	}
+
+	applyLabelsCondition(sess, opts)
+
+	if opts.User != nil {
+		sess.And(issuePullAccessibleRepoCond("issue.repo_id", opts.User.ID, opts.Org, opts.Team, opts.IsPull.Value()))
+	}
+}
+
+// teamUnitsRepoCond returns query condition for those repo id in the special org team with special units access
+func teamUnitsRepoCond(id string, userID, orgID, teamID int64, units ...unit.Type) builder.Cond {
+	return builder.In(id,
+		builder.Select("repo_id").From("team_repo").Where(
+			builder.Eq{
+				"team_id": teamID,
+			}.And(
+				builder.Or(
+					// Check if the user is member of the team.
+					builder.In(
+						"team_id", builder.Select("team_id").From("team_user").Where(
+							builder.Eq{
+								"uid": userID,
+							},
+						),
+					),
+					// Check if the user is in the owner team of the organisation.
+					builder.Exists(builder.Select("team_id").From("team_user").
+						Where(builder.Eq{
+							"org_id": orgID,
+							"team_id": builder.Select("id").From("team").Where(
+								builder.Eq{
+									"org_id":     orgID,
+									"lower_name": strings.ToLower(organization.OwnerTeamName),
+								}),
+							"uid": userID,
+						}),
+					),
+				)).And(
+				builder.In(
+					"team_id", builder.Select("team_id").From("team_unit").Where(
+						builder.Eq{
+							"`team_unit`.org_id": orgID,
+						}.And(
+							builder.In("`team_unit`.type", units),
+						),
+					),
+				),
+			),
+		))
+}
+
+// issuePullAccessibleRepoCond userID must not be zero, this condition require join repository table
+func issuePullAccessibleRepoCond(repoIDstr string, userID int64, org *organization.Organization, team *organization.Team, isPull bool) builder.Cond {
+	cond := builder.NewCond()
+	unitType := unit.TypeIssues
+	if isPull {
+		unitType = unit.TypePullRequests
+	}
+	if org != nil {
+		if team != nil {
+			cond = cond.And(teamUnitsRepoCond(repoIDstr, userID, org.ID, team.ID, unitType)) // special team member repos
+		} else {
+			cond = cond.And(
+				builder.Or(
+					repo_model.UserOrgUnitRepoCond(repoIDstr, userID, org.ID, unitType), // team member repos
+					repo_model.UserOrgPublicUnitRepoCond(userID, org.ID),                // user org public non-member repos, TODO: check repo has issues
+				),
+			)
+		}
+	} else {
+		cond = cond.And(
+			builder.Or(
+				repo_model.UserOwnedRepoCond(userID),                          // owned repos
+				repo_model.UserAccessRepoCond(repoIDstr, userID),              // user can access repo in a unit independent way
+				repo_model.UserAssignedRepoCond(repoIDstr, userID),            // user has been assigned accessible public repos
+				repo_model.UserMentionedRepoCond(repoIDstr, userID),           // user has been mentioned accessible public repos
+				repo_model.UserCreateIssueRepoCond(repoIDstr, userID, isPull), // user has created issue/pr accessible public repos
+			),
+		)
+	}
+	return cond
+}
+
+func applyAssigneeCondition(sess *xorm.Session, assigneeID int64) {
+	sess.Join("INNER", "issue_assignees", "issue.id = issue_assignees.issue_id").
+		And("issue_assignees.assignee_id = ?", assigneeID)
+}
+
+func applyPosterCondition(sess *xorm.Session, posterID int64) {
+	sess.And("issue.poster_id=?", posterID)
+}
+
+func applyMentionedCondition(sess *xorm.Session, mentionedID int64) {
+	sess.Join("INNER", "issue_user", "issue.id = issue_user.issue_id").
+		And("issue_user.is_mentioned = ?", true).
+		And("issue_user.uid = ?", mentionedID)
+}
+
+func applyReviewRequestedCondition(sess *xorm.Session, reviewRequestedID int64) {
+	existInTeamQuery := builder.Select("team_user.team_id").
+		From("team_user").
+		Where(builder.Eq{"team_user.uid": reviewRequestedID})
+
+	// if the review is approved or rejected, it should not be shown in the review requested list
+	maxReview := builder.Select("MAX(r.id)").
+		From("review as r").
+		Where(builder.In("r.type", []ReviewType{ReviewTypeApprove, ReviewTypeReject, ReviewTypeRequest})).
+		GroupBy("r.issue_id, r.reviewer_id, r.reviewer_team_id")
+
+	subQuery := builder.Select("review.issue_id").
+		From("review").
+		Where(builder.And(
+			builder.Eq{"review.type": ReviewTypeRequest},
+			builder.Or(
+				builder.Eq{"review.reviewer_id": reviewRequestedID},
+				builder.In("review.reviewer_team_id", existInTeamQuery),
+			),
+			builder.In("review.id", maxReview),
+		))
+	sess.Where("issue.poster_id <> ?", reviewRequestedID).
+		And(builder.In("issue.id", subQuery))
+}
+
+func applyReviewedCondition(sess *xorm.Session, reviewedID int64) {
+	// Query for pull requests where you are a reviewer or commenter, excluding
+	// any pull requests already returned by the review requested filter.
+	notPoster := builder.Neq{"issue.poster_id": reviewedID}
+	reviewed := builder.In("issue.id", builder.
+		Select("issue_id").
+		From("review").
+		Where(builder.And(
+			builder.Neq{"type": ReviewTypeRequest},
+			builder.Or(
+				builder.Eq{"reviewer_id": reviewedID},
+				builder.In("reviewer_team_id", builder.
+					Select("team_id").
+					From("team_user").
+					Where(builder.Eq{"uid": reviewedID}),
+				),
+			),
+		)),
+	)
+	commented := builder.In("issue.id", builder.
+		Select("issue_id").
+		From("comment").
+		Where(builder.And(
+			builder.Eq{"poster_id": reviewedID},
+			builder.In("type", CommentTypeComment, CommentTypeCode, CommentTypeReview),
+		)),
+	)
+	sess.And(notPoster, builder.Or(reviewed, commented))
+}
+
+func applySubscribedCondition(sess *xorm.Session, subscriberID int64) {
+	sess.And(
+		builder.
+			NotIn("issue.id",
+				builder.Select("issue_id").
+					From("issue_watch").
+					Where(builder.Eq{"is_watching": false, "user_id": subscriberID}),
+			),
+	).And(
+		builder.Or(
+			builder.In("issue.id", builder.
+				Select("issue_id").
+				From("issue_watch").
+				Where(builder.Eq{"is_watching": true, "user_id": subscriberID}),
+			),
+			builder.In("issue.id", builder.
+				Select("issue_id").
+				From("comment").
+				Where(builder.Eq{"poster_id": subscriberID}),
+			),
+			builder.Eq{"issue.poster_id": subscriberID},
+			builder.In("issue.repo_id", builder.
+				Select("id").
+				From("watch").
+				Where(builder.And(builder.Eq{"user_id": subscriberID},
+					builder.In("mode", repo_model.WatchModeNormal, repo_model.WatchModeAuto))),
+			),
+		),
+	)
+}
+
+// Issues returns a list of issues by given conditions.
+func Issues(ctx context.Context, opts *IssuesOptions) (IssueList, error) {
+	sess := db.GetEngine(ctx).
+		Join("INNER", "repository", "`issue`.repo_id = `repository`.id")
+	applyLimit(sess, opts)
+	applyConditions(sess, opts)
+	applySorts(sess, opts.SortType, opts.PriorityRepoID)
+
+	issues := IssueList{}
+	if err := sess.Find(&issues); err != nil {
+		return nil, fmt.Errorf("unable to query Issues: %w", err)
+	}
+
+	if err := issues.LoadAttributes(ctx); err != nil {
+		return nil, fmt.Errorf("unable to LoadAttributes for Issues: %w", err)
+	}
+
+	return issues, nil
+}
+
+// IssueIDs returns a list of issue ids by given conditions.
+func IssueIDs(ctx context.Context, opts *IssuesOptions, otherConds ...builder.Cond) ([]int64, int64, error) {
+	sess := db.GetEngine(ctx).
+		Join("INNER", "repository", "`issue`.repo_id = `repository`.id")
+	applyConditions(sess, opts)
+	for _, cond := range otherConds {
+		sess.And(cond)
+	}
+
+	applyLimit(sess, opts)
+	applySorts(sess, opts.SortType, opts.PriorityRepoID)
+
+	var res []int64
+	total, err := sess.Select("`issue`.id").Table(&Issue{}).FindAndCount(&res)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return res, total, nil
+}
diff --git a/models/issues/issue_stats.go b/models/issues/issue_stats.go
new file mode 100644
index 0000000..dc634cf
--- /dev/null
+++ b/models/issues/issue_stats.go
@@ -0,0 +1,191 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// IssueStats represents issue statistic information.
+type IssueStats struct {
+	OpenCount, ClosedCount int64
+	YourRepositoriesCount  int64
+	AssignCount            int64
+	CreateCount            int64
+	MentionCount           int64
+	ReviewRequestedCount   int64
+	ReviewedCount          int64
+}
+
+// Filter modes.
+const (
+	FilterModeAll = iota
+	FilterModeAssign
+	FilterModeCreate
+	FilterModeMention
+	FilterModeReviewRequested
+	FilterModeReviewed
+	FilterModeYourRepositories
+)
+
+const (
+	// MaxQueryParameters represents the max query parameters
+	// When queries are broken down in parts because of the number
+	// of parameters, attempt to break by this amount
+	MaxQueryParameters = 300
+)
+
+// CountIssuesByRepo map from repoID to number of issues matching the options
+func CountIssuesByRepo(ctx context.Context, opts *IssuesOptions) (map[int64]int64, error) {
+	sess := db.GetEngine(ctx).
+		Join("INNER", "repository", "`issue`.repo_id = `repository`.id")
+
+	applyConditions(sess, opts)
+
+	countsSlice := make([]*struct {
+		RepoID int64
+		Count  int64
+	}, 0, 10)
+	if err := sess.GroupBy("issue.repo_id").
+		Select("issue.repo_id AS repo_id, COUNT(*) AS count").
+		Table("issue").
+		Find(&countsSlice); err != nil {
+		return nil, fmt.Errorf("unable to CountIssuesByRepo: %w", err)
+	}
+
+	countMap := make(map[int64]int64, len(countsSlice))
+	for _, c := range countsSlice {
+		countMap[c.RepoID] = c.Count
+	}
+	return countMap, nil
+}
+
+// CountIssues number return of issues by given conditions.
+func CountIssues(ctx context.Context, opts *IssuesOptions, otherConds ...builder.Cond) (int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("COUNT(issue.id) AS count").
+		Table("issue").
+		Join("INNER", "repository", "`issue`.repo_id = `repository`.id")
+	applyConditions(sess, opts)
+
+	for _, cond := range otherConds {
+		sess.And(cond)
+	}
+
+	return sess.Count()
+}
+
+// GetIssueStats returns issue statistic information by given conditions.
+func GetIssueStats(ctx context.Context, opts *IssuesOptions) (*IssueStats, error) {
+	if len(opts.IssueIDs) <= MaxQueryParameters {
+		return getIssueStatsChunk(ctx, opts, opts.IssueIDs)
+	}
+
+	// If too long a list of IDs is provided, we get the statistics in
+	// smaller chunks and get accumulates. Note: this could potentially
+	// get us invalid results. The alternative is to insert the list of
+	// ids in a temporary table and join from them.
+	accum := &IssueStats{}
+	for i := 0; i < len(opts.IssueIDs); {
+		chunk := i + MaxQueryParameters
+		if chunk > len(opts.IssueIDs) {
+			chunk = len(opts.IssueIDs)
+		}
+		stats, err := getIssueStatsChunk(ctx, opts, opts.IssueIDs[i:chunk])
+		if err != nil {
+			return nil, err
+		}
+		accum.OpenCount += stats.OpenCount
+		accum.ClosedCount += stats.ClosedCount
+		accum.YourRepositoriesCount += stats.YourRepositoriesCount
+		accum.AssignCount += stats.AssignCount
+		accum.CreateCount += stats.CreateCount
+		accum.MentionCount += stats.MentionCount
+		accum.ReviewRequestedCount += stats.ReviewRequestedCount
+		accum.ReviewedCount += stats.ReviewedCount
+		i = chunk
+	}
+	return accum, nil
+}
+
+func getIssueStatsChunk(ctx context.Context, opts *IssuesOptions, issueIDs []int64) (*IssueStats, error) {
+	stats := &IssueStats{}
+
+	sess := db.GetEngine(ctx).
+		Join("INNER", "repository", "`issue`.repo_id = `repository`.id")
+
+	var err error
+	stats.OpenCount, err = applyIssuesOptions(sess, opts, issueIDs).
+		And("issue.is_closed = ?", false).
+		Count(new(Issue))
+	if err != nil {
+		return stats, err
+	}
+	stats.ClosedCount, err = applyIssuesOptions(sess, opts, issueIDs).
+		And("issue.is_closed = ?", true).
+		Count(new(Issue))
+	return stats, err
+}
+
+func applyIssuesOptions(sess *xorm.Session, opts *IssuesOptions, issueIDs []int64) *xorm.Session {
+	if len(opts.RepoIDs) > 1 {
+		sess.In("issue.repo_id", opts.RepoIDs)
+	} else if len(opts.RepoIDs) == 1 {
+		sess.And("issue.repo_id = ?", opts.RepoIDs[0])
+	}
+
+	if len(issueIDs) > 0 {
+		sess.In("issue.id", issueIDs)
+	}
+
+	applyLabelsCondition(sess, opts)
+
+	applyMilestoneCondition(sess, opts)
+
+	applyProjectCondition(sess, opts)
+
+	if opts.AssigneeID > 0 {
+		applyAssigneeCondition(sess, opts.AssigneeID)
+	} else if opts.AssigneeID == db.NoConditionID {
+		sess.Where("issue.id NOT IN (SELECT issue_id FROM issue_assignees)")
+	}
+
+	if opts.PosterID > 0 {
+		applyPosterCondition(sess, opts.PosterID)
+	}
+
+	if opts.MentionedID > 0 {
+		applyMentionedCondition(sess, opts.MentionedID)
+	}
+
+	if opts.ReviewRequestedID > 0 {
+		applyReviewRequestedCondition(sess, opts.ReviewRequestedID)
+	}
+
+	if opts.ReviewedID > 0 {
+		applyReviewedCondition(sess, opts.ReviewedID)
+	}
+
+	if opts.IsPull.Has() {
+		sess.And("issue.is_pull=?", opts.IsPull.Value())
+	}
+
+	return sess
+}
+
+// CountOrphanedIssues count issues without a repo
+func CountOrphanedIssues(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).
+		Table("issue").
+		Join("LEFT", "repository", "issue.repo_id=repository.id").
+		Where(builder.IsNull{"repository.id"}).
+		Select("COUNT(`issue`.`id`)").
+		Count()
+}
diff --git a/models/issues/issue_stats_test.go b/models/issues/issue_stats_test.go
new file mode 100644
index 0000000..fda75a6
--- /dev/null
+++ b/models/issues/issue_stats_test.go
@@ -0,0 +1,34 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetIssueStats(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	ids, err := issues_model.GetIssueIDsByRepoID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	stats, err := issues_model.GetIssueStats(db.DefaultContext, &issues_model.IssuesOptions{IssueIDs: ids})
+	require.NoError(t, err)
+
+	assert.Equal(t, int64(4), stats.OpenCount)
+	assert.Equal(t, int64(1), stats.ClosedCount)
+	assert.Equal(t, int64(0), stats.YourRepositoriesCount)
+	assert.Equal(t, int64(0), stats.AssignCount)
+	assert.Equal(t, int64(0), stats.CreateCount)
+	assert.Equal(t, int64(0), stats.MentionCount)
+	assert.Equal(t, int64(0), stats.ReviewRequestedCount)
+	assert.Equal(t, int64(0), stats.ReviewedCount)
+}
diff --git a/models/issues/issue_test.go b/models/issues/issue_test.go
new file mode 100644
index 0000000..580be96
--- /dev/null
+++ b/models/issues/issue_test.go
@@ -0,0 +1,498 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"sync"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/builder"
+)
+
+func TestIssue_ReplaceLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(issueID int64, labelIDs, expectedLabelIDs []int64) {
+		issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issueID})
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
+		doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+
+		labels := make([]*issues_model.Label, len(labelIDs))
+		for i, labelID := range labelIDs {
+			labels[i] = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: labelID, RepoID: repo.ID})
+		}
+		require.NoError(t, issues_model.ReplaceIssueLabels(db.DefaultContext, issue, labels, doer))
+		unittest.AssertCount(t, &issues_model.IssueLabel{IssueID: issueID}, len(expectedLabelIDs))
+		for _, labelID := range expectedLabelIDs {
+			unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issueID, LabelID: labelID})
+		}
+	}
+
+	testSuccess(1, []int64{2}, []int64{2})
+	testSuccess(1, []int64{1, 2}, []int64{1, 2})
+	testSuccess(1, []int64{}, []int64{})
+
+	// mutually exclusive scoped labels 7 and 8
+	testSuccess(18, []int64{6, 7}, []int64{6, 7})
+	testSuccess(18, []int64{7, 8}, []int64{8})
+	testSuccess(18, []int64{6, 8, 7}, []int64{6, 7})
+}
+
+func Test_GetIssueIDsByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	ids, err := issues_model.GetIssueIDsByRepoID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Len(t, ids, 5)
+}
+
+func TestIssueAPIURL(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	err := issue.LoadAttributes(db.DefaultContext)
+
+	require.NoError(t, err)
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user2/repo1/issues/1", issue.APIURL(db.DefaultContext))
+}
+
+func TestGetIssuesByIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(expectedIssueIDs, nonExistentIssueIDs []int64) {
+		issues, err := issues_model.GetIssuesByIDs(db.DefaultContext, append(expectedIssueIDs, nonExistentIssueIDs...), true)
+		require.NoError(t, err)
+		actualIssueIDs := make([]int64, len(issues))
+		for i, issue := range issues {
+			actualIssueIDs[i] = issue.ID
+		}
+		assert.Equal(t, expectedIssueIDs, actualIssueIDs)
+	}
+	testSuccess([]int64{1, 2, 3}, []int64{})
+	testSuccess([]int64{1, 2, 3}, []int64{unittest.NonexistentID})
+	testSuccess([]int64{3, 2, 1}, []int64{})
+}
+
+func TestGetParticipantIDsByIssue(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	checkParticipants := func(issueID int64, userIDs []int) {
+		issue, err := issues_model.GetIssueByID(db.DefaultContext, issueID)
+		require.NoError(t, err)
+
+		participants, err := issue.GetParticipantIDsByIssue(db.DefaultContext)
+		require.NoError(t, err)
+
+		participantsIDs := make([]int, len(participants))
+		for i, uid := range participants {
+			participantsIDs[i] = int(uid)
+		}
+		sort.Ints(participantsIDs)
+		sort.Ints(userIDs)
+		assert.Equal(t, userIDs, participantsIDs)
+	}
+
+	// User 1 is issue1 poster (see fixtures/issue.yml)
+	// User 2 only labeled issue1 (see fixtures/comment.yml)
+	// Users 3 and 5 made actual comments (see fixtures/comment.yml)
+	// User 3 is inactive, thus not active participant
+	checkParticipants(1, []int{1, 5})
+}
+
+func TestIssue_ClearLabels(t *testing.T) {
+	tests := []struct {
+		issueID int64
+		doerID  int64
+	}{
+		{1, 2}, // non-pull-request, has labels
+		{2, 2}, // pull-request, has labels
+		{3, 2}, // pull-request, has no labels
+	}
+	for _, test := range tests {
+		require.NoError(t, unittest.PrepareTestDatabase())
+		issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: test.issueID})
+		doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: test.doerID})
+		require.NoError(t, issues_model.ClearIssueLabels(db.DefaultContext, issue, doer))
+		unittest.AssertNotExistsBean(t, &issues_model.IssueLabel{IssueID: test.issueID})
+	}
+}
+
+func TestUpdateIssueCols(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{})
+
+	const newTitle = "New Title for unit test"
+	issue.Title = newTitle
+
+	prevContent := issue.Content
+	issue.Content = "This should have no effect"
+
+	now := time.Now().Unix()
+	require.NoError(t, issues_model.UpdateIssueCols(db.DefaultContext, issue, "name"))
+	then := time.Now().Unix()
+
+	updatedIssue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issue.ID})
+	assert.EqualValues(t, newTitle, updatedIssue.Title)
+	assert.EqualValues(t, prevContent, updatedIssue.Content)
+	unittest.AssertInt64InRange(t, now, then, int64(updatedIssue.UpdatedUnix))
+}
+
+func TestIssues(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	for _, test := range []struct {
+		Opts             issues_model.IssuesOptions
+		ExpectedIssueIDs []int64
+	}{
+		{
+			issues_model.IssuesOptions{
+				AssigneeID: 1,
+				SortType:   "oldest",
+			},
+			[]int64{1, 6},
+		},
+		{
+			issues_model.IssuesOptions{
+				RepoCond: builder.In("repo_id", 1, 3),
+				SortType: "oldest",
+				Paginator: &db.ListOptions{
+					Page:     1,
+					PageSize: 4,
+				},
+			},
+			[]int64{1, 2, 3, 5},
+		},
+		{
+			issues_model.IssuesOptions{
+				LabelIDs: []int64{1},
+				Paginator: &db.ListOptions{
+					Page:     1,
+					PageSize: 4,
+				},
+			},
+			[]int64{2, 1},
+		},
+		{
+			issues_model.IssuesOptions{
+				LabelIDs: []int64{1, 2},
+				Paginator: &db.ListOptions{
+					Page:     1,
+					PageSize: 4,
+				},
+			},
+			[]int64{}, // issues with **both** label 1 and 2, none of these issues matches, TODO: add more tests
+		},
+		{
+			issues_model.IssuesOptions{
+				LabelIDs: []int64{-1, 2},
+			},
+			[]int64{5}, // issue without label 1 but with label 2.
+		},
+		{
+			issues_model.IssuesOptions{
+				RepoCond: builder.In("repo_id", 1),
+				LabelIDs: []int64{0},
+			},
+			[]int64{11, 3}, // issues without any label (ordered by creation date desc.)(note: 11 is a pull request)
+		},
+		{
+			issues_model.IssuesOptions{
+				MilestoneIDs: []int64{1},
+			},
+			[]int64{2},
+		},
+	} {
+		issues, err := issues_model.Issues(db.DefaultContext, &test.Opts)
+		require.NoError(t, err)
+		if assert.Len(t, issues, len(test.ExpectedIssueIDs)) {
+			for i, issue := range issues {
+				assert.EqualValues(t, test.ExpectedIssueIDs[i], issue.ID)
+			}
+		}
+	}
+}
+
+func TestIssue_loadTotalTimes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	ms, err := issues_model.GetIssueByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+	require.NoError(t, ms.LoadTotalTimes(db.DefaultContext))
+	assert.Equal(t, int64(3682), ms.TotalTrackedTime)
+}
+
+func testInsertIssue(t *testing.T, title, content string, expectIndex int64) *issues_model.Issue {
+	var newIssue issues_model.Issue
+	t.Run(title, func(t *testing.T) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+		user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+		issue := issues_model.Issue{
+			RepoID:   repo.ID,
+			PosterID: user.ID,
+			Poster:   user,
+			Title:    title,
+			Content:  content,
+		}
+		err := issues_model.NewIssue(db.DefaultContext, repo, &issue, nil, nil)
+		require.NoError(t, err)
+
+		has, err := db.GetEngine(db.DefaultContext).ID(issue.ID).Get(&newIssue)
+		require.NoError(t, err)
+		assert.True(t, has)
+		assert.EqualValues(t, issue.Title, newIssue.Title)
+		assert.EqualValues(t, issue.Content, newIssue.Content)
+		if expectIndex > 0 {
+			assert.EqualValues(t, expectIndex, newIssue.Index)
+		}
+	})
+	return &newIssue
+}
+
+func TestIssue_InsertIssue(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// there are 5 issues and max index is 5 on repository 1, so this one should 6
+	issue := testInsertIssue(t, "my issue1", "special issue's comments?", 6)
+	_, err := db.DeleteByID[issues_model.Issue](db.DefaultContext, issue.ID)
+	require.NoError(t, err)
+
+	issue = testInsertIssue(t, `my issue2, this is my son's love \n \r \ `, "special issue's '' comments?", 7)
+	_, err = db.DeleteByID[issues_model.Issue](db.DefaultContext, issue.ID)
+	require.NoError(t, err)
+}
+
+func TestIssue_ResolveMentions(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(owner, repo, doer string, mentions []string, expected []int64) {
+		o := unittest.AssertExistsAndLoadBean(t, &user_model.User{LowerName: owner})
+		r := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{OwnerID: o.ID, LowerName: repo})
+		issue := &issues_model.Issue{RepoID: r.ID}
+		d := unittest.AssertExistsAndLoadBean(t, &user_model.User{LowerName: doer})
+		resolved, err := issues_model.ResolveIssueMentionsByVisibility(db.DefaultContext, issue, d, mentions)
+		require.NoError(t, err)
+		ids := make([]int64, len(resolved))
+		for i, user := range resolved {
+			ids[i] = user.ID
+		}
+		sort.Slice(ids, func(i, j int) bool { return ids[i] < ids[j] })
+		assert.EqualValues(t, expected, ids)
+	}
+
+	// Public repo, existing user
+	testSuccess("user2", "repo1", "user1", []string{"user5"}, []int64{5})
+	// Public repo, non-existing user
+	testSuccess("user2", "repo1", "user1", []string{"nonexisting"}, []int64{})
+	// Public repo, doer
+	testSuccess("user2", "repo1", "user1", []string{"user1"}, []int64{})
+	// Public repo, blocked user
+	testSuccess("user2", "repo1", "user1", []string{"user4"}, []int64{})
+	// Private repo, team member
+	testSuccess("org17", "big_test_private_4", "user20", []string{"user2"}, []int64{2})
+	// Private repo, not a team member
+	testSuccess("org17", "big_test_private_4", "user20", []string{"user5"}, []int64{})
+	// Private repo, whole team
+	testSuccess("org17", "big_test_private_4", "user15", []string{"org17/owners"}, []int64{18})
+}
+
+func TestResourceIndex(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	beforeCount, err := issues_model.CountIssues(context.Background(), &issues_model.IssuesOptions{})
+	require.NoError(t, err)
+
+	var wg sync.WaitGroup
+	for i := 0; i < 100; i++ {
+		wg.Add(1)
+		t.Run(fmt.Sprintf("issue %d", i+1), func(t *testing.T) {
+			t.Parallel()
+			testInsertIssue(t, fmt.Sprintf("issue %d", i+1), "my issue", 0)
+			wg.Done()
+		})
+	}
+
+	t.Run("Check the count", func(t *testing.T) {
+		t.Parallel()
+
+		wg.Wait()
+		afterCount, err := issues_model.CountIssues(context.Background(), &issues_model.IssuesOptions{})
+		require.NoError(t, err)
+		assert.EqualValues(t, 100, afterCount-beforeCount)
+	})
+}
+
+func TestCorrectIssueStats(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Because the condition is to have chunked database look-ups,
+	// We have to more issues than `maxQueryParameters`, we will insert.
+	// maxQueryParameters + 10 issues into the testDatabase.
+	// Each new issues will have a constant description "Bugs are nasty"
+	// Which will be used later on.
+
+	issueAmount := issues_model.MaxQueryParameters + 10
+
+	var wg sync.WaitGroup
+	for i := 0; i < issueAmount; i++ {
+		wg.Add(1)
+		go func(i int) {
+			testInsertIssue(t, fmt.Sprintf("Issue %d", i+1), "Bugs are nasty", 0)
+			wg.Done()
+		}(i)
+	}
+	wg.Wait()
+
+	// Now we will get all issueID's that match the "Bugs are nasty" query.
+	issues, err := issues_model.Issues(context.TODO(), &issues_model.IssuesOptions{
+		Paginator: &db.ListOptions{
+			PageSize: issueAmount,
+		},
+		RepoIDs: []int64{1},
+	})
+	total := int64(len(issues))
+	var ids []int64
+	for _, issue := range issues {
+		if issue.Content == "Bugs are nasty" {
+			ids = append(ids, issue.ID)
+		}
+	}
+
+	// Just to be sure.
+	require.NoError(t, err)
+	assert.EqualValues(t, issueAmount, total)
+
+	// Now we will call the GetIssueStats with these IDs and if working,
+	// get the correct stats back.
+	issueStats, err := issues_model.GetIssueStats(db.DefaultContext, &issues_model.IssuesOptions{
+		RepoIDs:  []int64{1},
+		IssueIDs: ids,
+	})
+
+	// Now check the values.
+	require.NoError(t, err)
+	assert.EqualValues(t, issueStats.OpenCount, issueAmount)
+}
+
+func TestMilestoneList_LoadTotalTrackedTimes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	miles := issues_model.MilestoneList{
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1}),
+	}
+
+	require.NoError(t, miles.LoadTotalTrackedTimes(db.DefaultContext))
+
+	assert.Equal(t, int64(3682), miles[0].TotalTrackedTime)
+}
+
+func TestLoadTotalTrackedTime(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	milestone := unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1})
+
+	require.NoError(t, milestone.LoadTotalTrackedTime(db.DefaultContext))
+
+	assert.Equal(t, int64(3682), milestone.TotalTrackedTime)
+}
+
+func TestCountIssues(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	count, err := issues_model.CountIssues(db.DefaultContext, &issues_model.IssuesOptions{})
+	require.NoError(t, err)
+	assert.EqualValues(t, 22, count)
+}
+
+func TestIssueLoadAttributes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	setting.Service.EnableTimetracking = true
+
+	issueList := issues_model.IssueList{
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1}),
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 4}),
+	}
+
+	for _, issue := range issueList {
+		require.NoError(t, issue.LoadAttributes(db.DefaultContext))
+		assert.EqualValues(t, issue.RepoID, issue.Repo.ID)
+		for _, label := range issue.Labels {
+			assert.EqualValues(t, issue.RepoID, label.RepoID)
+			unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label.ID})
+		}
+		if issue.PosterID > 0 {
+			assert.EqualValues(t, issue.PosterID, issue.Poster.ID)
+		}
+		if issue.AssigneeID > 0 {
+			assert.EqualValues(t, issue.AssigneeID, issue.Assignee.ID)
+		}
+		if issue.MilestoneID > 0 {
+			assert.EqualValues(t, issue.MilestoneID, issue.Milestone.ID)
+		}
+		if issue.IsPull {
+			assert.EqualValues(t, issue.ID, issue.PullRequest.IssueID)
+		}
+		for _, attachment := range issue.Attachments {
+			assert.EqualValues(t, issue.ID, attachment.IssueID)
+		}
+		for _, comment := range issue.Comments {
+			assert.EqualValues(t, issue.ID, comment.IssueID)
+		}
+		if issue.ID == int64(1) {
+			assert.Equal(t, int64(400), issue.TotalTrackedTime)
+			assert.NotNil(t, issue.Project)
+			assert.Equal(t, int64(1), issue.Project.ID)
+		} else {
+			assert.Nil(t, issue.Project)
+		}
+	}
+}
+
+func assertCreateIssues(t *testing.T, isPull bool) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	reponame := "repo1"
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: reponame})
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	milestone := unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1})
+	assert.EqualValues(t, 1, milestone.ID)
+	reaction := &issues_model.Reaction{
+		Type:   "heart",
+		UserID: owner.ID,
+	}
+
+	title := "issuetitle1"
+	is := &issues_model.Issue{
+		RepoID:      repo.ID,
+		MilestoneID: milestone.ID,
+		Repo:        repo,
+		Title:       title,
+		Content:     "issuecontent1",
+		IsPull:      isPull,
+		PosterID:    owner.ID,
+		Poster:      owner,
+		IsClosed:    true,
+		Labels:      []*issues_model.Label{label},
+		Reactions:   []*issues_model.Reaction{reaction},
+	}
+	err := issues_model.InsertIssues(db.DefaultContext, is)
+	require.NoError(t, err)
+
+	i := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{Title: title})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Reaction{Type: "heart", UserID: owner.ID, IssueID: i.ID})
+}
+
+func TestMigrate_CreateIssuesIsPullFalse(t *testing.T) {
+	assertCreateIssues(t, false)
+}
+
+func TestMigrate_CreateIssuesIsPullTrue(t *testing.T) {
+	assertCreateIssues(t, true)
+}
diff --git a/models/issues/issue_update.go b/models/issues/issue_update.go
new file mode 100644
index 0000000..dbfd2fc
--- /dev/null
+++ b/models/issues/issue_update.go
@@ -0,0 +1,795 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	project_model "code.gitea.io/gitea/models/project"
+	repo_model "code.gitea.io/gitea/models/repo"
+	system_model "code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/references"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+func UpdateIssueCols(ctx context.Context, issue *Issue, cols ...string) error {
+	_, err := UpdateIssueColsWithCond(ctx, issue, builder.NewCond(), cols...)
+	return err
+}
+
+func UpdateIssueColsWithCond(ctx context.Context, issue *Issue, cond builder.Cond, cols ...string) (int64, error) {
+	sess := db.GetEngine(ctx).ID(issue.ID)
+	if issue.NoAutoTime {
+		cols = append(cols, []string{"updated_unix"}...)
+		sess.NoAutoTime()
+	}
+	return sess.Cols(cols...).Where(cond).Update(issue)
+}
+
+func changeIssueStatus(ctx context.Context, issue *Issue, doer *user_model.User, isClosed, isMergePull bool) (*Comment, error) {
+	// Reload the issue
+	currentIssue, err := GetIssueByID(ctx, issue.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	// Nothing should be performed if current status is same as target status
+	if currentIssue.IsClosed == isClosed {
+		if !issue.IsPull {
+			return nil, ErrIssueWasClosed{
+				ID: issue.ID,
+			}
+		}
+		return nil, ErrPullWasClosed{
+			ID: issue.ID,
+		}
+	}
+
+	issue.IsClosed = isClosed
+	return doChangeIssueStatus(ctx, issue, doer, isMergePull)
+}
+
+func doChangeIssueStatus(ctx context.Context, issue *Issue, doer *user_model.User, isMergePull bool) (*Comment, error) {
+	// Check for open dependencies
+	if issue.IsClosed && issue.Repo.IsDependenciesEnabled(ctx) {
+		// only check if dependencies are enabled and we're about to close an issue, otherwise reopening an issue would fail when there are unsatisfied dependencies
+		noDeps, err := IssueNoDependenciesLeft(ctx, issue)
+		if err != nil {
+			return nil, err
+		}
+
+		if !noDeps {
+			return nil, ErrDependenciesLeft{issue.ID}
+		}
+	}
+
+	if issue.IsClosed {
+		if issue.NoAutoTime {
+			issue.ClosedUnix = issue.UpdatedUnix
+		} else {
+			issue.ClosedUnix = timeutil.TimeStampNow()
+		}
+	} else {
+		issue.ClosedUnix = 0
+	}
+
+	if err := UpdateIssueCols(ctx, issue, "is_closed", "closed_unix"); err != nil {
+		return nil, err
+	}
+
+	// Update issue count of labels
+	if err := issue.LoadLabels(ctx); err != nil {
+		return nil, err
+	}
+	for idx := range issue.Labels {
+		if err := updateLabelCols(ctx, issue.Labels[idx], "num_issues", "num_closed_issue"); err != nil {
+			return nil, err
+		}
+	}
+
+	// Update issue count of milestone
+	if issue.MilestoneID > 0 {
+		if issue.NoAutoTime {
+			if err := UpdateMilestoneCountersWithDate(ctx, issue.MilestoneID, issue.UpdatedUnix); err != nil {
+				return nil, err
+			}
+		} else {
+			if err := UpdateMilestoneCounters(ctx, issue.MilestoneID); err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	// update repository's issue closed number
+	if err := repo_model.UpdateRepoIssueNumbers(ctx, issue.RepoID, issue.IsPull, true); err != nil {
+		return nil, err
+	}
+
+	// New action comment
+	cmtType := CommentTypeClose
+	if !issue.IsClosed {
+		cmtType = CommentTypeReopen
+	} else if isMergePull {
+		cmtType = CommentTypeMergePull
+	}
+
+	return CreateComment(ctx, &CreateCommentOptions{
+		Type:  cmtType,
+		Doer:  doer,
+		Repo:  issue.Repo,
+		Issue: issue,
+	})
+}
+
+// ChangeIssueStatus changes issue status to open or closed.
+func ChangeIssueStatus(ctx context.Context, issue *Issue, doer *user_model.User, isClosed bool) (*Comment, error) {
+	if err := issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+	if err := issue.LoadPoster(ctx); err != nil {
+		return nil, err
+	}
+
+	return changeIssueStatus(ctx, issue, doer, isClosed, false)
+}
+
+// ChangeIssueTitle changes the title of this issue, as the given user.
+func ChangeIssueTitle(ctx context.Context, issue *Issue, doer *user_model.User, oldTitle string) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = UpdateIssueCols(ctx, issue, "name"); err != nil {
+		return fmt.Errorf("updateIssueCols: %w", err)
+	}
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return fmt.Errorf("loadRepo: %w", err)
+	}
+
+	opts := &CreateCommentOptions{
+		Type:     CommentTypeChangeTitle,
+		Doer:     doer,
+		Repo:     issue.Repo,
+		Issue:    issue,
+		OldTitle: oldTitle,
+		NewTitle: issue.Title,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return fmt.Errorf("createComment: %w", err)
+	}
+	if err = issue.AddCrossReferences(ctx, doer, true); err != nil {
+		return fmt.Errorf("addCrossReferences: %w", err)
+	}
+
+	return committer.Commit()
+}
+
+// ChangeIssueRef changes the branch of this issue, as the given user.
+func ChangeIssueRef(ctx context.Context, issue *Issue, doer *user_model.User, oldRef string) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = UpdateIssueCols(ctx, issue, "ref"); err != nil {
+		return fmt.Errorf("updateIssueCols: %w", err)
+	}
+
+	if err = issue.LoadRepo(ctx); err != nil {
+		return fmt.Errorf("loadRepo: %w", err)
+	}
+	oldRefFriendly := strings.TrimPrefix(oldRef, git.BranchPrefix)
+	newRefFriendly := strings.TrimPrefix(issue.Ref, git.BranchPrefix)
+
+	opts := &CreateCommentOptions{
+		Type:   CommentTypeChangeIssueRef,
+		Doer:   doer,
+		Repo:   issue.Repo,
+		Issue:  issue,
+		OldRef: oldRefFriendly,
+		NewRef: newRefFriendly,
+	}
+	if _, err = CreateComment(ctx, opts); err != nil {
+		return fmt.Errorf("createComment: %w", err)
+	}
+
+	return committer.Commit()
+}
+
+// AddDeletePRBranchComment adds delete branch comment for pull request issue
+func AddDeletePRBranchComment(ctx context.Context, doer *user_model.User, repo *repo_model.Repository, issueID int64, branchName string) error {
+	issue, err := GetIssueByID(ctx, issueID)
+	if err != nil {
+		return err
+	}
+	opts := &CreateCommentOptions{
+		Type:   CommentTypeDeleteBranch,
+		Doer:   doer,
+		Repo:   repo,
+		Issue:  issue,
+		OldRef: branchName,
+	}
+	_, err = CreateComment(ctx, opts)
+	return err
+}
+
+// UpdateIssueAttachments update attachments by UUIDs for the issue
+func UpdateIssueAttachments(ctx context.Context, issueID int64, uuids []string) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	attachments, err := repo_model.GetAttachmentsByUUIDs(ctx, uuids)
+	if err != nil {
+		return fmt.Errorf("getAttachmentsByUUIDs [uuids: %v]: %w", uuids, err)
+	}
+	for i := 0; i < len(attachments); i++ {
+		attachments[i].IssueID = issueID
+		if err := repo_model.UpdateAttachment(ctx, attachments[i]); err != nil {
+			return fmt.Errorf("update attachment [id: %d]: %w", attachments[i].ID, err)
+		}
+	}
+	return committer.Commit()
+}
+
+// ChangeIssueContent changes issue content, as the given user.
+func ChangeIssueContent(ctx context.Context, issue *Issue, doer *user_model.User, content string, contentVersion int) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	hasContentHistory, err := HasIssueContentHistory(ctx, issue.ID, 0)
+	if err != nil {
+		return fmt.Errorf("HasIssueContentHistory: %w", err)
+	}
+	if !hasContentHistory {
+		if err = SaveIssueContentHistory(ctx, issue.PosterID, issue.ID, 0,
+			issue.CreatedUnix, issue.Content, true); err != nil {
+			return fmt.Errorf("SaveIssueContentHistory: %w", err)
+		}
+	}
+
+	issue.Content = content
+	issue.ContentVersion = contentVersion + 1
+
+	expectedContentVersion := builder.NewCond().And(builder.Eq{"content_version": contentVersion})
+	affected, err := UpdateIssueColsWithCond(ctx, issue, expectedContentVersion, "content", "content_version")
+	if err != nil {
+		return fmt.Errorf("UpdateIssueCols: %w", err)
+	}
+	if affected == 0 {
+		return ErrIssueAlreadyChanged
+	}
+
+	historyDate := timeutil.TimeStampNow()
+	if issue.NoAutoTime {
+		historyDate = issue.UpdatedUnix
+	}
+	if err = SaveIssueContentHistory(ctx, doer.ID, issue.ID, 0,
+		historyDate, issue.Content, false); err != nil {
+		return fmt.Errorf("SaveIssueContentHistory: %w", err)
+	}
+
+	if err = issue.AddCrossReferences(ctx, doer, true); err != nil {
+		return fmt.Errorf("addCrossReferences: %w", err)
+	}
+
+	return committer.Commit()
+}
+
+// NewIssueOptions represents the options of a new issue.
+type NewIssueOptions struct {
+	Repo        *repo_model.Repository
+	Issue       *Issue
+	LabelIDs    []int64
+	Attachments []string // In UUID format.
+	IsPull      bool
+}
+
+// NewIssueWithIndex creates issue with given index
+func NewIssueWithIndex(ctx context.Context, doer *user_model.User, opts NewIssueOptions) (err error) {
+	e := db.GetEngine(ctx)
+	opts.Issue.Title = strings.TrimSpace(opts.Issue.Title)
+
+	if opts.Issue.MilestoneID > 0 {
+		milestone, err := GetMilestoneByRepoID(ctx, opts.Issue.RepoID, opts.Issue.MilestoneID)
+		if err != nil && !IsErrMilestoneNotExist(err) {
+			return fmt.Errorf("getMilestoneByID: %w", err)
+		}
+
+		// Assume milestone is invalid and drop silently.
+		opts.Issue.MilestoneID = 0
+		if milestone != nil {
+			opts.Issue.MilestoneID = milestone.ID
+			opts.Issue.Milestone = milestone
+		}
+	}
+
+	if opts.Issue.Index <= 0 {
+		return fmt.Errorf("no issue index provided")
+	}
+	if opts.Issue.ID > 0 {
+		return fmt.Errorf("issue exist")
+	}
+
+	opts.Issue.Created = timeutil.TimeStampNanoNow()
+
+	if _, err := e.Insert(opts.Issue); err != nil {
+		return err
+	}
+
+	if opts.Issue.MilestoneID > 0 {
+		if err := UpdateMilestoneCounters(ctx, opts.Issue.MilestoneID); err != nil {
+			return err
+		}
+
+		opts := &CreateCommentOptions{
+			Type:           CommentTypeMilestone,
+			Doer:           doer,
+			Repo:           opts.Repo,
+			Issue:          opts.Issue,
+			OldMilestoneID: 0,
+			MilestoneID:    opts.Issue.MilestoneID,
+		}
+		if _, err = CreateComment(ctx, opts); err != nil {
+			return err
+		}
+	}
+
+	if err := repo_model.UpdateRepoIssueNumbers(ctx, opts.Issue.RepoID, opts.IsPull, false); err != nil {
+		return err
+	}
+
+	if len(opts.LabelIDs) > 0 {
+		// During the session, SQLite3 driver cannot handle retrieve objects after update something.
+		// So we have to get all needed labels first.
+		labels := make([]*Label, 0, len(opts.LabelIDs))
+		if err = e.In("id", opts.LabelIDs).Find(&labels); err != nil {
+			return fmt.Errorf("find all labels [label_ids: %v]: %w", opts.LabelIDs, err)
+		}
+
+		if err = opts.Issue.LoadPoster(ctx); err != nil {
+			return err
+		}
+
+		for _, label := range labels {
+			// Silently drop invalid labels.
+			if label.RepoID != opts.Repo.ID && label.OrgID != opts.Repo.OwnerID {
+				continue
+			}
+
+			if err = newIssueLabel(ctx, opts.Issue, label, opts.Issue.Poster); err != nil {
+				return fmt.Errorf("addLabel [id: %d]: %w", label.ID, err)
+			}
+		}
+	}
+
+	if err = NewIssueUsers(ctx, opts.Repo, opts.Issue); err != nil {
+		return err
+	}
+
+	if len(opts.Attachments) > 0 {
+		attachments, err := repo_model.GetAttachmentsByUUIDs(ctx, opts.Attachments)
+		if err != nil {
+			return fmt.Errorf("getAttachmentsByUUIDs [uuids: %v]: %w", opts.Attachments, err)
+		}
+
+		for i := 0; i < len(attachments); i++ {
+			attachments[i].IssueID = opts.Issue.ID
+			if _, err = e.ID(attachments[i].ID).Update(attachments[i]); err != nil {
+				return fmt.Errorf("update attachment [id: %d]: %w", attachments[i].ID, err)
+			}
+		}
+	}
+	if err = opts.Issue.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	return opts.Issue.AddCrossReferences(ctx, doer, false)
+}
+
+// NewIssue creates new issue with labels for repository.
+func NewIssue(ctx context.Context, repo *repo_model.Repository, issue *Issue, labelIDs []int64, uuids []string) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	idx, err := db.GetNextResourceIndex(ctx, "issue_index", repo.ID)
+	if err != nil {
+		return fmt.Errorf("generate issue index failed: %w", err)
+	}
+
+	issue.Index = idx
+
+	if err = NewIssueWithIndex(ctx, issue.Poster, NewIssueOptions{
+		Repo:        repo,
+		Issue:       issue,
+		LabelIDs:    labelIDs,
+		Attachments: uuids,
+	}); err != nil {
+		if repo_model.IsErrUserDoesNotHaveAccessToRepo(err) || IsErrNewIssueInsert(err) {
+			return err
+		}
+		return fmt.Errorf("newIssue: %w", err)
+	}
+
+	if err = committer.Commit(); err != nil {
+		return fmt.Errorf("Commit: %w", err)
+	}
+
+	return nil
+}
+
+// UpdateIssueMentions updates issue-user relations for mentioned users.
+func UpdateIssueMentions(ctx context.Context, issueID int64, mentions []*user_model.User) error {
+	if len(mentions) == 0 {
+		return nil
+	}
+	ids := make([]int64, len(mentions))
+	for i, u := range mentions {
+		ids[i] = u.ID
+	}
+	if err := UpdateIssueUsersByMentions(ctx, issueID, ids); err != nil {
+		return fmt.Errorf("UpdateIssueUsersByMentions: %w", err)
+	}
+	return nil
+}
+
+// UpdateIssueDeadline updates an issue deadline and adds comments. Setting a deadline to 0 means deleting it.
+func UpdateIssueDeadline(ctx context.Context, issue *Issue, deadlineUnix timeutil.TimeStamp, doer *user_model.User) (err error) {
+	// if the deadline hasn't changed do nothing
+	if issue.DeadlineUnix == deadlineUnix {
+		return nil
+	}
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Update the deadline
+	if err = UpdateIssueCols(ctx, &Issue{ID: issue.ID, DeadlineUnix: deadlineUnix, NoAutoTime: issue.NoAutoTime, UpdatedUnix: issue.UpdatedUnix}, "deadline_unix"); err != nil {
+		return err
+	}
+
+	// Make the comment
+	if _, err = createDeadlineComment(ctx, doer, issue, deadlineUnix); err != nil {
+		return fmt.Errorf("createRemovedDueDateComment: %w", err)
+	}
+
+	return committer.Commit()
+}
+
+// FindAndUpdateIssueMentions finds users mentioned in the given content string, and saves them in the database.
+func FindAndUpdateIssueMentions(ctx context.Context, issue *Issue, doer *user_model.User, content string) (mentions []*user_model.User, err error) {
+	rawMentions := references.FindAllMentionsMarkdown(content)
+	mentions, err = ResolveIssueMentionsByVisibility(ctx, issue, doer, rawMentions)
+	if err != nil {
+		return nil, fmt.Errorf("UpdateIssueMentions [%d]: %w", issue.ID, err)
+	}
+	if err = UpdateIssueMentions(ctx, issue.ID, mentions); err != nil {
+		return nil, fmt.Errorf("UpdateIssueMentions [%d]: %w", issue.ID, err)
+	}
+	return mentions, err
+}
+
+// ResolveIssueMentionsByVisibility returns the users mentioned in an issue, removing those that
+// don't have access to reading it. Teams are expanded into their users, but organizations are ignored.
+func ResolveIssueMentionsByVisibility(ctx context.Context, issue *Issue, doer *user_model.User, mentions []string) (users []*user_model.User, err error) {
+	if len(mentions) == 0 {
+		return nil, nil
+	}
+	if err = issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	resolved := make(map[string]bool, 10)
+	var mentionTeams []string
+
+	if err := issue.Repo.LoadOwner(ctx); err != nil {
+		return nil, err
+	}
+
+	repoOwnerIsOrg := issue.Repo.Owner.IsOrganization()
+	if repoOwnerIsOrg {
+		mentionTeams = make([]string, 0, 5)
+	}
+
+	resolved[doer.LowerName] = true
+	for _, name := range mentions {
+		name := strings.ToLower(name)
+		if _, ok := resolved[name]; ok {
+			continue
+		}
+		if repoOwnerIsOrg && strings.Contains(name, "/") {
+			names := strings.Split(name, "/")
+			if len(names) < 2 || names[0] != issue.Repo.Owner.LowerName {
+				continue
+			}
+			mentionTeams = append(mentionTeams, names[1])
+			resolved[name] = true
+		} else {
+			resolved[name] = false
+		}
+	}
+
+	if issue.Repo.Owner.IsOrganization() && len(mentionTeams) > 0 {
+		teams := make([]*organization.Team, 0, len(mentionTeams))
+		if err := db.GetEngine(ctx).
+			Join("INNER", "team_repo", "team_repo.team_id = team.id").
+			Where("team_repo.repo_id=?", issue.Repo.ID).
+			In("team.lower_name", mentionTeams).
+			Find(&teams); err != nil {
+			return nil, fmt.Errorf("find mentioned teams: %w", err)
+		}
+		if len(teams) != 0 {
+			checked := make([]int64, 0, len(teams))
+			unittype := unit.TypeIssues
+			if issue.IsPull {
+				unittype = unit.TypePullRequests
+			}
+			for _, team := range teams {
+				if team.AccessMode >= perm.AccessModeAdmin {
+					checked = append(checked, team.ID)
+					resolved[issue.Repo.Owner.LowerName+"/"+team.LowerName] = true
+					continue
+				}
+				has, err := db.GetEngine(ctx).Get(&organization.TeamUnit{OrgID: issue.Repo.Owner.ID, TeamID: team.ID, Type: unittype})
+				if err != nil {
+					return nil, fmt.Errorf("get team units (%d): %w", team.ID, err)
+				}
+				if has {
+					checked = append(checked, team.ID)
+					resolved[issue.Repo.Owner.LowerName+"/"+team.LowerName] = true
+				}
+			}
+			if len(checked) != 0 {
+				teamusers := make([]*user_model.User, 0, 20)
+				if err := db.GetEngine(ctx).
+					Join("INNER", "team_user", "team_user.uid = `user`.id").
+					Join("LEFT", "forgejo_blocked_user", "forgejo_blocked_user.user_id = `user`.id").
+					In("`team_user`.team_id", checked).
+					And("`user`.is_active = ?", true).
+					And("`user`.prohibit_login = ?", false).
+					And(builder.Or(builder.IsNull{"`forgejo_blocked_user`.block_id"}, builder.Neq{"`forgejo_blocked_user`.block_id": doer.ID})).
+					Find(&teamusers); err != nil {
+					return nil, fmt.Errorf("get teams users: %w", err)
+				}
+				if len(teamusers) > 0 {
+					users = make([]*user_model.User, 0, len(teamusers))
+					for _, user := range teamusers {
+						if already, ok := resolved[user.LowerName]; !ok || !already {
+							users = append(users, user)
+							resolved[user.LowerName] = true
+						}
+					}
+				}
+			}
+		}
+	}
+
+	// Remove names already in the list to avoid querying the database if pending names remain
+	mentionUsers := make([]string, 0, len(resolved))
+	for name, already := range resolved {
+		if !already {
+			mentionUsers = append(mentionUsers, name)
+		}
+	}
+	if len(mentionUsers) == 0 {
+		return users, err
+	}
+
+	if users == nil {
+		users = make([]*user_model.User, 0, len(mentionUsers))
+	}
+
+	unchecked := make([]*user_model.User, 0, len(mentionUsers))
+	if err := db.GetEngine(ctx).
+		Join("LEFT", "forgejo_blocked_user", "forgejo_blocked_user.user_id = `user`.id").
+		Where("`user`.is_active = ?", true).
+		And("`user`.prohibit_login = ?", false).
+		And(builder.Or(builder.IsNull{"`forgejo_blocked_user`.block_id"}, builder.Neq{"`forgejo_blocked_user`.block_id": doer.ID})).
+		In("`user`.lower_name", mentionUsers).
+		Find(&unchecked); err != nil {
+		return nil, fmt.Errorf("find mentioned users: %w", err)
+	}
+	for _, user := range unchecked {
+		if already := resolved[user.LowerName]; already || user.IsOrganization() {
+			continue
+		}
+		// Normal users must have read access to the referencing issue
+		perm, err := access_model.GetUserRepoPermission(ctx, issue.Repo, user)
+		if err != nil {
+			return nil, fmt.Errorf("GetUserRepoPermission [%d]: %w", user.ID, err)
+		}
+		if !perm.CanReadIssuesOrPulls(issue.IsPull) {
+			continue
+		}
+		users = append(users, user)
+	}
+
+	return users, err
+}
+
+// UpdateIssuesMigrationsByType updates all migrated repositories' issues from gitServiceType to replace originalAuthorID to posterID
+func UpdateIssuesMigrationsByType(ctx context.Context, gitServiceType api.GitServiceType, originalAuthorID string, posterID int64) error {
+	_, err := db.GetEngine(ctx).Table("issue").
+		Where("repo_id IN (SELECT id FROM repository WHERE original_service_type = ?)", gitServiceType).
+		And("original_author_id = ?", originalAuthorID).
+		Update(map[string]any{
+			"poster_id":          posterID,
+			"original_author":    "",
+			"original_author_id": 0,
+		})
+	return err
+}
+
+// UpdateReactionsMigrationsByType updates all migrated repositories' reactions from gitServiceType to replace originalAuthorID to posterID
+func UpdateReactionsMigrationsByType(ctx context.Context, gitServiceType api.GitServiceType, originalAuthorID string, userID int64) error {
+	_, err := db.GetEngine(ctx).Table("reaction").
+		Where("original_author_id = ?", originalAuthorID).
+		And(migratedIssueCond(gitServiceType)).
+		Update(map[string]any{
+			"user_id":            userID,
+			"original_author":    "",
+			"original_author_id": 0,
+		})
+	return err
+}
+
+// DeleteIssuesByRepoID deletes issues by repositories id
+func DeleteIssuesByRepoID(ctx context.Context, repoID int64) (attachmentPaths []string, err error) {
+	// MariaDB has a performance bug: https://jira.mariadb.org/browse/MDEV-16289
+	// so here it uses "DELETE ... WHERE IN" with pre-queried IDs.
+	sess := db.GetEngine(ctx)
+
+	for {
+		issueIDs := make([]int64, 0, db.DefaultMaxInSize)
+
+		err := sess.Table(&Issue{}).Where("repo_id = ?", repoID).OrderBy("id").Limit(db.DefaultMaxInSize).Cols("id").Find(&issueIDs)
+		if err != nil {
+			return nil, err
+		}
+
+		if len(issueIDs) == 0 {
+			break
+		}
+
+		// Delete content histories
+		_, err = sess.In("issue_id", issueIDs).Delete(&ContentHistory{})
+		if err != nil {
+			return nil, err
+		}
+
+		// Delete comments and attachments
+		_, err = sess.In("issue_id", issueIDs).Delete(&Comment{})
+		if err != nil {
+			return nil, err
+		}
+
+		// Dependencies for issues in this repository
+		_, err = sess.In("issue_id", issueIDs).Delete(&IssueDependency{})
+		if err != nil {
+			return nil, err
+		}
+
+		// Delete dependencies for issues in other repositories
+		_, err = sess.In("dependency_id", issueIDs).Delete(&IssueDependency{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&IssueUser{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&Reaction{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&IssueWatch{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&Stopwatch{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&TrackedTime{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&project_model.ProjectIssue{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("dependent_issue_id", issueIDs).Delete(&Comment{})
+		if err != nil {
+			return nil, err
+		}
+
+		var attachments []*repo_model.Attachment
+		err = sess.In("issue_id", issueIDs).Find(&attachments)
+		if err != nil {
+			return nil, err
+		}
+
+		for j := range attachments {
+			attachmentPaths = append(attachmentPaths, attachments[j].RelativePath())
+		}
+
+		_, err = sess.In("issue_id", issueIDs).Delete(&repo_model.Attachment{})
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = sess.In("id", issueIDs).Delete(&Issue{})
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return attachmentPaths, err
+}
+
+// DeleteOrphanedIssues delete issues without a repo
+func DeleteOrphanedIssues(ctx context.Context) error {
+	var attachmentPaths []string
+	err := db.WithTx(ctx, func(ctx context.Context) error {
+		var ids []int64
+
+		if err := db.GetEngine(ctx).Table("issue").Distinct("issue.repo_id").
+			Join("LEFT", "repository", "issue.repo_id=repository.id").
+			Where(builder.IsNull{"repository.id"}).GroupBy("issue.repo_id").
+			Find(&ids); err != nil {
+			return err
+		}
+
+		for i := range ids {
+			paths, err := DeleteIssuesByRepoID(ctx, ids[i])
+			if err != nil {
+				return err
+			}
+			attachmentPaths = append(attachmentPaths, paths...)
+		}
+
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	// Remove issue attachment files.
+	for i := range attachmentPaths {
+		system_model.RemoveAllWithNotice(ctx, "Delete issue attachment", attachmentPaths[i])
+	}
+	return nil
+}
diff --git a/models/issues/issue_user.go b/models/issues/issue_user.go
new file mode 100644
index 0000000..6b59e07
--- /dev/null
+++ b/models/issues/issue_user.go
@@ -0,0 +1,96 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+)
+
+// IssueUser represents an issue-user relation.
+type IssueUser struct {
+	ID          int64 `xorm:"pk autoincr"`
+	UID         int64 `xorm:"INDEX unique(uid_to_issue)"` // User ID.
+	IssueID     int64 `xorm:"INDEX unique(uid_to_issue)"`
+	IsRead      bool
+	IsMentioned bool
+}
+
+func init() {
+	db.RegisterModel(new(IssueUser))
+}
+
+// NewIssueUsers inserts an issue related users
+func NewIssueUsers(ctx context.Context, repo *repo_model.Repository, issue *Issue) error {
+	assignees, err := repo_model.GetRepoAssignees(ctx, repo)
+	if err != nil {
+		return fmt.Errorf("getAssignees: %w", err)
+	}
+
+	// Poster can be anyone, append later if not one of assignees.
+	isPosterAssignee := false
+
+	// Leave a seat for poster itself to append later, but if poster is one of assignee
+	// and just waste 1 unit is cheaper than re-allocate memory once.
+	issueUsers := make([]*IssueUser, 0, len(assignees)+1)
+	for _, assignee := range assignees {
+		issueUsers = append(issueUsers, &IssueUser{
+			IssueID: issue.ID,
+			UID:     assignee.ID,
+		})
+		isPosterAssignee = isPosterAssignee || assignee.ID == issue.PosterID
+	}
+	if !isPosterAssignee {
+		issueUsers = append(issueUsers, &IssueUser{
+			IssueID: issue.ID,
+			UID:     issue.PosterID,
+		})
+	}
+
+	return db.Insert(ctx, issueUsers)
+}
+
+// UpdateIssueUserByRead updates issue-user relation for reading.
+func UpdateIssueUserByRead(ctx context.Context, uid, issueID int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `issue_user` SET is_read=? WHERE uid=? AND issue_id=?", true, uid, issueID)
+	return err
+}
+
+// UpdateIssueUsersByMentions updates issue-user pairs by mentioning.
+func UpdateIssueUsersByMentions(ctx context.Context, issueID int64, uids []int64) error {
+	for _, uid := range uids {
+		iu := &IssueUser{
+			UID:     uid,
+			IssueID: issueID,
+		}
+		has, err := db.GetEngine(ctx).Get(iu)
+		if err != nil {
+			return err
+		}
+
+		iu.IsMentioned = true
+		if has {
+			_, err = db.GetEngine(ctx).ID(iu.ID).Cols("is_mentioned").Update(iu)
+		} else {
+			_, err = db.GetEngine(ctx).Insert(iu)
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetIssueMentionIDs returns all mentioned user IDs of an issue.
+func GetIssueMentionIDs(ctx context.Context, issueID int64) ([]int64, error) {
+	var ids []int64
+	return ids, db.GetEngine(ctx).Table(IssueUser{}).
+		Where("issue_id=?", issueID).
+		And("is_mentioned=?", true).
+		Select("uid").
+		Find(&ids)
+}
diff --git a/models/issues/issue_user_test.go b/models/issues/issue_user_test.go
new file mode 100644
index 0000000..e059e43
--- /dev/null
+++ b/models/issues/issue_user_test.go
@@ -0,0 +1,61 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Test_NewIssueUsers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	newIssue := &issues_model.Issue{
+		RepoID:   repo.ID,
+		PosterID: 4,
+		Index:    6,
+		Title:    "newTestIssueTitle",
+		Content:  "newTestIssueContent",
+	}
+
+	// artificially insert new issue
+	unittest.AssertSuccessfulInsert(t, newIssue)
+
+	require.NoError(t, issues_model.NewIssueUsers(db.DefaultContext, repo, newIssue))
+
+	// issue_user table should now have entries for new issue
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueUser{IssueID: newIssue.ID, UID: newIssue.PosterID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueUser{IssueID: newIssue.ID, UID: repo.OwnerID})
+}
+
+func TestUpdateIssueUserByRead(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+
+	require.NoError(t, issues_model.UpdateIssueUserByRead(db.DefaultContext, 4, issue.ID))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueUser{IssueID: issue.ID, UID: 4}, "is_read=1")
+
+	require.NoError(t, issues_model.UpdateIssueUserByRead(db.DefaultContext, 4, issue.ID))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueUser{IssueID: issue.ID, UID: 4}, "is_read=1")
+
+	require.NoError(t, issues_model.UpdateIssueUserByRead(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+}
+
+func TestUpdateIssueUsersByMentions(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+
+	uids := []int64{2, 5}
+	require.NoError(t, issues_model.UpdateIssueUsersByMentions(db.DefaultContext, issue.ID, uids))
+	for _, uid := range uids {
+		unittest.AssertExistsAndLoadBean(t, &issues_model.IssueUser{IssueID: issue.ID, UID: uid}, "is_mentioned=1")
+	}
+}
diff --git a/models/issues/issue_watch.go b/models/issues/issue_watch.go
new file mode 100644
index 0000000..9e616a0
--- /dev/null
+++ b/models/issues/issue_watch.go
@@ -0,0 +1,134 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// IssueWatch is connection request for receiving issue notification.
+type IssueWatch struct {
+	ID          int64              `xorm:"pk autoincr"`
+	UserID      int64              `xorm:"UNIQUE(watch) NOT NULL"`
+	IssueID     int64              `xorm:"UNIQUE(watch) NOT NULL"`
+	IsWatching  bool               `xorm:"NOT NULL"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created NOT NULL"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"updated NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(IssueWatch))
+}
+
+// IssueWatchList contains IssueWatch
+type IssueWatchList []*IssueWatch
+
+// CreateOrUpdateIssueWatch set watching for a user and issue
+func CreateOrUpdateIssueWatch(ctx context.Context, userID, issueID int64, isWatching bool) error {
+	iw, exists, err := GetIssueWatch(ctx, userID, issueID)
+	if err != nil {
+		return err
+	}
+
+	if !exists {
+		iw = &IssueWatch{
+			UserID:     userID,
+			IssueID:    issueID,
+			IsWatching: isWatching,
+		}
+
+		if _, err := db.GetEngine(ctx).Insert(iw); err != nil {
+			return err
+		}
+	} else {
+		iw.IsWatching = isWatching
+
+		if _, err := db.GetEngine(ctx).ID(iw.ID).Cols("is_watching", "updated_unix").Update(iw); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// GetIssueWatch returns all IssueWatch objects from db by user and issue
+// the current Web-UI need iw object for watchers AND explicit non-watchers
+func GetIssueWatch(ctx context.Context, userID, issueID int64) (iw *IssueWatch, exists bool, err error) {
+	iw = new(IssueWatch)
+	exists, err = db.GetEngine(ctx).
+		Where("user_id = ?", userID).
+		And("issue_id = ?", issueID).
+		Get(iw)
+	return iw, exists, err
+}
+
+// CheckIssueWatch check if an user is watching an issue
+// it takes participants and repo watch into account
+func CheckIssueWatch(ctx context.Context, user *user_model.User, issue *Issue) (bool, error) {
+	iw, exist, err := GetIssueWatch(ctx, user.ID, issue.ID)
+	if err != nil {
+		return false, err
+	}
+	if exist {
+		return iw.IsWatching, nil
+	}
+	w, err := repo_model.GetWatch(ctx, user.ID, issue.RepoID)
+	if err != nil {
+		return false, err
+	}
+	return repo_model.IsWatchMode(w.Mode) || IsUserParticipantsOfIssue(ctx, user, issue), nil
+}
+
+// GetIssueWatchersIDs returns IDs of subscribers or explicit unsubscribers to a given issue id
+// but avoids joining with `user` for performance reasons
+// User permissions must be verified elsewhere if required
+func GetIssueWatchersIDs(ctx context.Context, issueID int64, watching bool) ([]int64, error) {
+	ids := make([]int64, 0, 64)
+	return ids, db.GetEngine(ctx).Table("issue_watch").
+		Where("issue_id=?", issueID).
+		And("is_watching = ?", watching).
+		Select("user_id").
+		Find(&ids)
+}
+
+// GetIssueWatchers returns watchers/unwatchers of a given issue
+func GetIssueWatchers(ctx context.Context, issueID int64, listOptions db.ListOptions) (IssueWatchList, error) {
+	sess := db.GetEngine(ctx).
+		Where("`issue_watch`.issue_id = ?", issueID).
+		And("`issue_watch`.is_watching = ?", true).
+		And("`user`.is_active = ?", true).
+		And("`user`.prohibit_login = ?", false).
+		Join("INNER", "`user`", "`user`.id = `issue_watch`.user_id")
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+		watches := make([]*IssueWatch, 0, listOptions.PageSize)
+		return watches, sess.Find(&watches)
+	}
+	watches := make([]*IssueWatch, 0, 8)
+	return watches, sess.Find(&watches)
+}
+
+// CountIssueWatchers count watchers/unwatchers of a given issue
+func CountIssueWatchers(ctx context.Context, issueID int64) (int64, error) {
+	return db.GetEngine(ctx).
+		Where("`issue_watch`.issue_id = ?", issueID).
+		And("`issue_watch`.is_watching = ?", true).
+		And("`user`.is_active = ?", true).
+		And("`user`.prohibit_login = ?", false).
+		Join("INNER", "`user`", "`user`.id = `issue_watch`.user_id").Count(new(IssueWatch))
+}
+
+// RemoveIssueWatchersByRepoID remove issue watchers by repoID
+func RemoveIssueWatchersByRepoID(ctx context.Context, userID, repoID int64) error {
+	_, err := db.GetEngine(ctx).
+		Join("INNER", "issue", "`issue`.id = `issue_watch`.issue_id AND `issue`.repo_id = ?", repoID).
+		Where("`issue_watch`.user_id = ?", userID).
+		Delete(new(IssueWatch))
+	return err
+}
diff --git a/models/issues/issue_watch_test.go b/models/issues/issue_watch_test.go
new file mode 100644
index 0000000..573215d
--- /dev/null
+++ b/models/issues/issue_watch_test.go
@@ -0,0 +1,68 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateOrUpdateIssueWatch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	require.NoError(t, issues_model.CreateOrUpdateIssueWatch(db.DefaultContext, 3, 1, true))
+	iw := unittest.AssertExistsAndLoadBean(t, &issues_model.IssueWatch{UserID: 3, IssueID: 1})
+	assert.True(t, iw.IsWatching)
+
+	require.NoError(t, issues_model.CreateOrUpdateIssueWatch(db.DefaultContext, 1, 1, false))
+	iw = unittest.AssertExistsAndLoadBean(t, &issues_model.IssueWatch{UserID: 1, IssueID: 1})
+	assert.False(t, iw.IsWatching)
+}
+
+func TestGetIssueWatch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	_, exists, err := issues_model.GetIssueWatch(db.DefaultContext, 9, 1)
+	assert.True(t, exists)
+	require.NoError(t, err)
+
+	iw, exists, err := issues_model.GetIssueWatch(db.DefaultContext, 2, 2)
+	assert.True(t, exists)
+	require.NoError(t, err)
+	assert.False(t, iw.IsWatching)
+
+	_, exists, err = issues_model.GetIssueWatch(db.DefaultContext, 3, 1)
+	assert.False(t, exists)
+	require.NoError(t, err)
+}
+
+func TestGetIssueWatchers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	iws, err := issues_model.GetIssueWatchers(db.DefaultContext, 1, db.ListOptions{})
+	require.NoError(t, err)
+	// Watcher is inactive, thus 0
+	assert.Empty(t, iws)
+
+	iws, err = issues_model.GetIssueWatchers(db.DefaultContext, 2, db.ListOptions{})
+	require.NoError(t, err)
+	// Watcher is explicit not watching
+	assert.Empty(t, iws)
+
+	iws, err = issues_model.GetIssueWatchers(db.DefaultContext, 5, db.ListOptions{})
+	require.NoError(t, err)
+	// Issue has no Watchers
+	assert.Empty(t, iws)
+
+	iws, err = issues_model.GetIssueWatchers(db.DefaultContext, 7, db.ListOptions{})
+	require.NoError(t, err)
+	// Issue has one watcher
+	assert.Len(t, iws, 1)
+}
diff --git a/models/issues/issue_xref.go b/models/issues/issue_xref.go
new file mode 100644
index 0000000..9c9d5d6
--- /dev/null
+++ b/models/issues/issue_xref.go
@@ -0,0 +1,364 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/references"
+)
+
+type crossReference struct {
+	Issue  *Issue
+	Action references.XRefAction
+}
+
+// crossReferencesContext is context to pass along findCrossReference functions
+type crossReferencesContext struct {
+	Type        CommentType
+	Doer        *user_model.User
+	OrigIssue   *Issue
+	OrigComment *Comment
+	RemoveOld   bool
+}
+
+func findOldCrossReferences(ctx context.Context, issueID, commentID int64) ([]*Comment, error) {
+	active := make([]*Comment, 0, 10)
+	return active, db.GetEngine(ctx).Where("`ref_action` IN (?, ?, ?)", references.XRefActionNone, references.XRefActionCloses, references.XRefActionReopens).
+		And("`ref_issue_id` = ?", issueID).
+		And("`ref_comment_id` = ?", commentID).
+		Find(&active)
+}
+
+func neuterCrossReferences(ctx context.Context, issueID, commentID int64) error {
+	active, err := findOldCrossReferences(ctx, issueID, commentID)
+	if err != nil {
+		return err
+	}
+	ids := make([]int64, len(active))
+	for i, c := range active {
+		ids[i] = c.ID
+	}
+	return neuterCrossReferencesIDs(ctx, nil, ids)
+}
+
+func neuterCrossReferencesIDs(stdCtx context.Context, ctx *crossReferencesContext, ids []int64) error {
+	sess := db.GetEngine(stdCtx).In("id", ids).Cols("`ref_action`")
+	if ctx != nil && ctx.OrigIssue.NoAutoTime {
+		sess.SetExpr("updated_unix", ctx.OrigIssue.UpdatedUnix).NoAutoTime()
+	}
+	_, err := sess.Update(&Comment{RefAction: references.XRefActionNeutered})
+	return err
+}
+
+// AddCrossReferences add cross repositories references.
+func (issue *Issue) AddCrossReferences(stdCtx context.Context, doer *user_model.User, removeOld bool) error {
+	var commentType CommentType
+	if issue.IsPull {
+		commentType = CommentTypePullRef
+	} else {
+		commentType = CommentTypeIssueRef
+	}
+	ctx := &crossReferencesContext{
+		Type:      commentType,
+		Doer:      doer,
+		OrigIssue: issue,
+		RemoveOld: removeOld,
+	}
+	return issue.createCrossReferences(stdCtx, ctx, issue.Title, issue.Content)
+}
+
+func (issue *Issue) createCrossReferences(stdCtx context.Context, ctx *crossReferencesContext, plaincontent, mdcontent string) error {
+	xreflist, err := ctx.OrigIssue.getCrossReferences(stdCtx, ctx, plaincontent, mdcontent)
+	if err != nil {
+		return err
+	}
+	if ctx.RemoveOld {
+		var commentID int64
+		if ctx.OrigComment != nil {
+			commentID = ctx.OrigComment.ID
+		}
+		active, err := findOldCrossReferences(stdCtx, ctx.OrigIssue.ID, commentID)
+		if err != nil {
+			return err
+		}
+		ids := make([]int64, 0, len(active))
+		for _, c := range active {
+			found := false
+			for i, x := range xreflist {
+				if x.Issue.ID == c.IssueID && x.Action == c.RefAction {
+					found = true
+					xreflist = append(xreflist[:i], xreflist[i+1:]...)
+					break
+				}
+			}
+			if !found {
+				ids = append(ids, c.ID)
+			}
+		}
+		if len(ids) > 0 {
+			if err = neuterCrossReferencesIDs(stdCtx, ctx, ids); err != nil {
+				return err
+			}
+		}
+	}
+	for _, xref := range xreflist {
+		var refCommentID int64
+		if ctx.OrigComment != nil {
+			refCommentID = ctx.OrigComment.ID
+		}
+		if ctx.OrigIssue.NoAutoTime {
+			xref.Issue.NoAutoTime = true
+			xref.Issue.UpdatedUnix = ctx.OrigIssue.UpdatedUnix
+		}
+		opts := &CreateCommentOptions{
+			Type:         ctx.Type,
+			Doer:         ctx.Doer,
+			Repo:         xref.Issue.Repo,
+			Issue:        xref.Issue,
+			RefRepoID:    ctx.OrigIssue.RepoID,
+			RefIssueID:   ctx.OrigIssue.ID,
+			RefCommentID: refCommentID,
+			RefAction:    xref.Action,
+			RefIsPull:    ctx.OrigIssue.IsPull,
+		}
+		_, err := CreateComment(stdCtx, opts)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (issue *Issue) getCrossReferences(stdCtx context.Context, ctx *crossReferencesContext, plaincontent, mdcontent string) ([]*crossReference, error) {
+	xreflist := make([]*crossReference, 0, 5)
+	var (
+		refRepo   *repo_model.Repository
+		refIssue  *Issue
+		refAction references.XRefAction
+		err       error
+	)
+
+	allrefs := append(references.FindAllIssueReferences(plaincontent), references.FindAllIssueReferencesMarkdown(mdcontent)...)
+	for _, ref := range allrefs {
+		if ref.Owner == "" && ref.Name == "" {
+			// Issues in the same repository
+			if err := ctx.OrigIssue.LoadRepo(stdCtx); err != nil {
+				return nil, err
+			}
+			refRepo = ctx.OrigIssue.Repo
+		} else {
+			// Issues in other repositories
+			refRepo, err = repo_model.GetRepositoryByOwnerAndName(stdCtx, ref.Owner, ref.Name)
+			if err != nil {
+				if repo_model.IsErrRepoNotExist(err) {
+					continue
+				}
+				return nil, err
+			}
+		}
+		if refIssue, refAction, err = ctx.OrigIssue.verifyReferencedIssue(stdCtx, ctx, refRepo, ref); err != nil {
+			return nil, err
+		}
+		if refIssue != nil {
+			xreflist = ctx.OrigIssue.updateCrossReferenceList(xreflist, &crossReference{
+				Issue:  refIssue,
+				Action: refAction,
+			})
+		}
+	}
+
+	return xreflist, nil
+}
+
+func (issue *Issue) updateCrossReferenceList(list []*crossReference, xref *crossReference) []*crossReference {
+	if xref.Issue.ID == issue.ID {
+		return list
+	}
+	for i, r := range list {
+		if r.Issue.ID == xref.Issue.ID {
+			if xref.Action != references.XRefActionNone {
+				list[i].Action = xref.Action
+			}
+			return list
+		}
+	}
+	return append(list, xref)
+}
+
+// verifyReferencedIssue will check if the referenced issue exists, and whether the doer has permission to do what
+func (issue *Issue) verifyReferencedIssue(stdCtx context.Context, ctx *crossReferencesContext, repo *repo_model.Repository,
+	ref references.IssueReference,
+) (*Issue, references.XRefAction, error) {
+	refIssue := &Issue{RepoID: repo.ID, Index: ref.Index}
+	refAction := ref.Action
+	e := db.GetEngine(stdCtx)
+
+	if has, _ := e.Get(refIssue); !has {
+		return nil, references.XRefActionNone, nil
+	}
+	if err := refIssue.LoadRepo(stdCtx); err != nil {
+		return nil, references.XRefActionNone, err
+	}
+
+	// Close/reopen actions can only be set from pull requests to issues
+	if refIssue.IsPull || !issue.IsPull {
+		refAction = references.XRefActionNone
+	}
+
+	// Check doer permissions; set action to None if the doer can't change the destination
+	if refIssue.RepoID != ctx.OrigIssue.RepoID || ref.Action != references.XRefActionNone {
+		perm, err := access_model.GetUserRepoPermission(stdCtx, refIssue.Repo, ctx.Doer)
+		if err != nil {
+			return nil, references.XRefActionNone, err
+		}
+		if !perm.CanReadIssuesOrPulls(refIssue.IsPull) {
+			return nil, references.XRefActionNone, nil
+		}
+		// Accept close/reopening actions only if the poster is able to close the
+		// referenced issue manually at this moment. The only exception is
+		// the poster of a new PR referencing an issue on the same repo: then the merger
+		// should be responsible for checking whether the reference should resolve.
+		if ref.Action != references.XRefActionNone &&
+			ctx.Doer.ID != refIssue.PosterID &&
+			!perm.CanWriteIssuesOrPulls(refIssue.IsPull) &&
+			(refIssue.RepoID != ctx.OrigIssue.RepoID || ctx.OrigComment != nil) {
+			refAction = references.XRefActionNone
+		}
+	}
+
+	return refIssue, refAction, nil
+}
+
+// AddCrossReferences add cross references
+func (c *Comment) AddCrossReferences(stdCtx context.Context, doer *user_model.User, removeOld bool) error {
+	if c.Type != CommentTypeCode && c.Type != CommentTypeComment {
+		return nil
+	}
+	if err := c.LoadIssue(stdCtx); err != nil {
+		return err
+	}
+	ctx := &crossReferencesContext{
+		Type:        CommentTypeCommentRef,
+		Doer:        doer,
+		OrigIssue:   c.Issue,
+		OrigComment: c,
+		RemoveOld:   removeOld,
+	}
+	return c.Issue.createCrossReferences(stdCtx, ctx, "", c.Content)
+}
+
+func (c *Comment) neuterCrossReferences(ctx context.Context) error {
+	return neuterCrossReferences(ctx, c.IssueID, c.ID)
+}
+
+// LoadRefComment loads comment that created this reference from database
+func (c *Comment) LoadRefComment(ctx context.Context) (err error) {
+	if c.RefComment != nil {
+		return nil
+	}
+	c.RefComment, err = GetCommentByID(ctx, c.RefCommentID)
+	return err
+}
+
+// LoadRefIssue loads comment that created this reference from database
+func (c *Comment) LoadRefIssue(ctx context.Context) (err error) {
+	if c.RefIssue != nil {
+		return nil
+	}
+	c.RefIssue, err = GetIssueByID(ctx, c.RefIssueID)
+	if err == nil {
+		err = c.RefIssue.LoadRepo(ctx)
+	}
+	return err
+}
+
+// CommentTypeIsRef returns true if CommentType is a reference from another issue
+func CommentTypeIsRef(t CommentType) bool {
+	return t == CommentTypeCommentRef || t == CommentTypePullRef || t == CommentTypeIssueRef
+}
+
+// RefCommentLink returns the relative URL for the comment that created this reference
+func (c *Comment) RefCommentLink(ctx context.Context) string {
+	// Edge case for when the reference is inside the title or the description of the referring issue
+	if c.RefCommentID == 0 {
+		return c.RefIssueLink(ctx)
+	}
+	if err := c.LoadRefComment(ctx); err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadRefComment(%d): %v", c.RefCommentID, err)
+		return ""
+	}
+	return c.RefComment.Link(ctx)
+}
+
+// RefIssueLink returns the relative URL of the issue where this reference was created
+func (c *Comment) RefIssueLink(ctx context.Context) string {
+	if err := c.LoadRefIssue(ctx); err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadRefIssue(%d): %v", c.RefCommentID, err)
+		return ""
+	}
+	return c.RefIssue.Link()
+}
+
+// RefIssueTitle returns the title of the issue where this reference was created
+func (c *Comment) RefIssueTitle(ctx context.Context) string {
+	if err := c.LoadRefIssue(ctx); err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadRefIssue(%d): %v", c.RefCommentID, err)
+		return ""
+	}
+	return c.RefIssue.Title
+}
+
+// RefIssueIdent returns the user friendly identity (e.g. "#1234") of the issue where this reference was created
+func (c *Comment) RefIssueIdent(ctx context.Context) string {
+	if err := c.LoadRefIssue(ctx); err != nil { // Silently dropping errors :unamused:
+		log.Error("LoadRefIssue(%d): %v", c.RefCommentID, err)
+		return ""
+	}
+	// FIXME: check this name for cross-repository references (#7901 if it gets merged)
+	return fmt.Sprintf("#%d", c.RefIssue.Index)
+}
+
+// __________      .__  .__ __________                                     __
+// \______   \__ __|  | |  |\______   \ ____  ________ __   ____   _______/  |_
+//  |     ___/  |  \  | |  | |       _// __ \/ ____/  |  \_/ __ \ /  ___/\   __\
+//  |    |   |  |  /  |_|  |_|    |   \  ___< <_|  |  |  /\  ___/ \___ \  |  |
+//  |____|   |____/|____/____/____|_  /\___  >__   |____/  \___  >____  > |__|
+//                                  \/     \/   |__|           \/     \/
+
+// ResolveCrossReferences will return the list of references to close/reopen by this PR
+func (pr *PullRequest) ResolveCrossReferences(ctx context.Context) ([]*Comment, error) {
+	unfiltered := make([]*Comment, 0, 5)
+	if err := db.GetEngine(ctx).
+		Where("ref_repo_id = ? AND ref_issue_id = ?", pr.Issue.RepoID, pr.Issue.ID).
+		In("ref_action", []references.XRefAction{references.XRefActionCloses, references.XRefActionReopens}).
+		OrderBy("id").
+		Find(&unfiltered); err != nil {
+		return nil, fmt.Errorf("get reference: %w", err)
+	}
+
+	refs := make([]*Comment, 0, len(unfiltered))
+	for _, ref := range unfiltered {
+		found := false
+		for i, r := range refs {
+			if r.IssueID == ref.IssueID {
+				// Keep only the latest
+				refs[i] = ref
+				found = true
+				break
+			}
+		}
+		if !found {
+			refs = append(refs, ref)
+		}
+	}
+
+	return refs, nil
+}
diff --git a/models/issues/issue_xref_test.go b/models/issues/issue_xref_test.go
new file mode 100644
index 0000000..a24d1b0
--- /dev/null
+++ b/models/issues/issue_xref_test.go
@@ -0,0 +1,185 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"fmt"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/references"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestXRef_AddCrossReferences(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Issue #1 to test against
+	itarget := testCreateIssue(t, 1, 2, "title1", "content1", false)
+
+	// PR to close issue #1
+	content := fmt.Sprintf("content2, closes #%d", itarget.Index)
+	pr := testCreateIssue(t, 1, 2, "title2", content, true)
+	ref := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: pr.ID, RefCommentID: 0})
+	assert.Equal(t, issues_model.CommentTypePullRef, ref.Type)
+	assert.Equal(t, pr.RepoID, ref.RefRepoID)
+	assert.True(t, ref.RefIsPull)
+	assert.Equal(t, references.XRefActionCloses, ref.RefAction)
+
+	// Comment on PR to reopen issue #1
+	content = fmt.Sprintf("content2, reopens #%d", itarget.Index)
+	c := testCreateComment(t, 2, pr.ID, content)
+	ref = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: pr.ID, RefCommentID: c.ID})
+	assert.Equal(t, issues_model.CommentTypeCommentRef, ref.Type)
+	assert.Equal(t, pr.RepoID, ref.RefRepoID)
+	assert.True(t, ref.RefIsPull)
+	assert.Equal(t, references.XRefActionReopens, ref.RefAction)
+
+	// Issue mentioning issue #1
+	content = fmt.Sprintf("content3, mentions #%d", itarget.Index)
+	i := testCreateIssue(t, 1, 2, "title3", content, false)
+	ref = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: i.ID, RefCommentID: 0})
+	assert.Equal(t, issues_model.CommentTypeIssueRef, ref.Type)
+	assert.Equal(t, pr.RepoID, ref.RefRepoID)
+	assert.False(t, ref.RefIsPull)
+	assert.Equal(t, references.XRefActionNone, ref.RefAction)
+
+	// Issue #4 to test against
+	itarget = testCreateIssue(t, 3, 3, "title4", "content4", false)
+
+	// Cross-reference to issue #4 by admin
+	content = fmt.Sprintf("content5, mentions org3/repo3#%d", itarget.Index)
+	i = testCreateIssue(t, 2, 1, "title5", content, false)
+	ref = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: i.ID, RefCommentID: 0})
+	assert.Equal(t, issues_model.CommentTypeIssueRef, ref.Type)
+	assert.Equal(t, i.RepoID, ref.RefRepoID)
+	assert.False(t, ref.RefIsPull)
+	assert.Equal(t, references.XRefActionNone, ref.RefAction)
+
+	// Cross-reference to issue #4 with no permission
+	content = fmt.Sprintf("content6, mentions org3/repo3#%d", itarget.Index)
+	i = testCreateIssue(t, 4, 5, "title6", content, false)
+	unittest.AssertNotExistsBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: i.ID, RefCommentID: 0})
+}
+
+func TestXRef_NeuterCrossReferences(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Issue #1 to test against
+	itarget := testCreateIssue(t, 1, 2, "title1", "content1", false)
+
+	// Issue mentioning issue #1
+	title := fmt.Sprintf("title2, mentions #%d", itarget.Index)
+	i := testCreateIssue(t, 1, 2, title, "content2", false)
+	ref := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: i.ID, RefCommentID: 0})
+	assert.Equal(t, issues_model.CommentTypeIssueRef, ref.Type)
+	assert.Equal(t, references.XRefActionNone, ref.RefAction)
+
+	d := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	i.Title = "title2, no mentions"
+	require.NoError(t, issues_model.ChangeIssueTitle(db.DefaultContext, i, d, title))
+
+	ref = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: itarget.ID, RefIssueID: i.ID, RefCommentID: 0})
+	assert.Equal(t, issues_model.CommentTypeIssueRef, ref.Type)
+	assert.Equal(t, references.XRefActionNeutered, ref.RefAction)
+}
+
+func TestXRef_ResolveCrossReferences(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	d := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	i1 := testCreateIssue(t, 1, 2, "title1", "content1", false)
+	i2 := testCreateIssue(t, 1, 2, "title2", "content2", false)
+	i3 := testCreateIssue(t, 1, 2, "title3", "content3", false)
+	_, err := issues_model.ChangeIssueStatus(db.DefaultContext, i3, d, true)
+	require.NoError(t, err)
+
+	pr := testCreatePR(t, 1, 2, "titlepr", fmt.Sprintf("closes #%d", i1.Index))
+	rp := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: i1.ID, RefIssueID: pr.Issue.ID, RefCommentID: 0})
+
+	c1 := testCreateComment(t, 2, pr.Issue.ID, fmt.Sprintf("closes #%d", i2.Index))
+	r1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: i2.ID, RefIssueID: pr.Issue.ID, RefCommentID: c1.ID})
+
+	// Must be ignored
+	c2 := testCreateComment(t, 2, pr.Issue.ID, fmt.Sprintf("mentions #%d", i2.Index))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: i2.ID, RefIssueID: pr.Issue.ID, RefCommentID: c2.ID})
+
+	// Must be superseded by c4/r4
+	c3 := testCreateComment(t, 2, pr.Issue.ID, fmt.Sprintf("reopens #%d", i3.Index))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: i3.ID, RefIssueID: pr.Issue.ID, RefCommentID: c3.ID})
+
+	c4 := testCreateComment(t, 2, pr.Issue.ID, fmt.Sprintf("closes #%d", i3.Index))
+	r4 := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{IssueID: i3.ID, RefIssueID: pr.Issue.ID, RefCommentID: c4.ID})
+
+	refs, err := pr.ResolveCrossReferences(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, refs, 3)
+	assert.Equal(t, rp.ID, refs[0].ID, "bad ref rp: %+v", refs[0])
+	assert.Equal(t, r1.ID, refs[1].ID, "bad ref r1: %+v", refs[1])
+	assert.Equal(t, r4.ID, refs[2].ID, "bad ref r4: %+v", refs[2])
+}
+
+func testCreateIssue(t *testing.T, repo, doer int64, title, content string, ispull bool) *issues_model.Issue {
+	r := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repo})
+	d := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: doer})
+
+	ctx, committer, err := db.TxContext(db.DefaultContext)
+	require.NoError(t, err)
+	defer committer.Close()
+
+	idx, err := db.GetNextResourceIndex(ctx, "issue_index", r.ID)
+	require.NoError(t, err)
+	i := &issues_model.Issue{
+		RepoID:   r.ID,
+		PosterID: d.ID,
+		Poster:   d,
+		Title:    title,
+		Content:  content,
+		IsPull:   ispull,
+		Index:    idx,
+	}
+
+	err = issues_model.NewIssueWithIndex(ctx, d, issues_model.NewIssueOptions{
+		Repo:  r,
+		Issue: i,
+	})
+	require.NoError(t, err)
+	i, err = issues_model.GetIssueByID(ctx, i.ID)
+	require.NoError(t, err)
+	require.NoError(t, i.AddCrossReferences(ctx, d, false))
+	require.NoError(t, committer.Commit())
+	return i
+}
+
+func testCreatePR(t *testing.T, repo, doer int64, title, content string) *issues_model.PullRequest {
+	r := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repo})
+	d := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: doer})
+	i := &issues_model.Issue{RepoID: r.ID, PosterID: d.ID, Poster: d, Title: title, Content: content, IsPull: true}
+	pr := &issues_model.PullRequest{HeadRepoID: repo, BaseRepoID: repo, HeadBranch: "head", BaseBranch: "base", Status: issues_model.PullRequestStatusMergeable}
+	require.NoError(t, issues_model.NewPullRequest(db.DefaultContext, r, i, nil, nil, pr))
+	pr.Issue = i
+	return pr
+}
+
+func testCreateComment(t *testing.T, doer, issue int64, content string) *issues_model.Comment {
+	d := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: doer})
+	i := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issue})
+	c := &issues_model.Comment{Type: issues_model.CommentTypeComment, PosterID: doer, Poster: d, IssueID: issue, Issue: i, Content: content}
+
+	ctx, committer, err := db.TxContext(db.DefaultContext)
+	require.NoError(t, err)
+	defer committer.Close()
+	err = db.Insert(ctx, c)
+	require.NoError(t, err)
+	require.NoError(t, c.AddCrossReferences(ctx, d, false))
+	require.NoError(t, committer.Commit())
+	return c
+}
diff --git a/models/issues/label.go b/models/issues/label.go
new file mode 100644
index 0000000..61478e1
--- /dev/null
+++ b/models/issues/label.go
@@ -0,0 +1,509 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/label"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrRepoLabelNotExist represents a "RepoLabelNotExist" kind of error.
+type ErrRepoLabelNotExist struct {
+	LabelID int64
+	RepoID  int64
+}
+
+// IsErrRepoLabelNotExist checks if an error is a RepoErrLabelNotExist.
+func IsErrRepoLabelNotExist(err error) bool {
+	_, ok := err.(ErrRepoLabelNotExist)
+	return ok
+}
+
+func (err ErrRepoLabelNotExist) Error() string {
+	return fmt.Sprintf("label does not exist [label_id: %d, repo_id: %d]", err.LabelID, err.RepoID)
+}
+
+func (err ErrRepoLabelNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrOrgLabelNotExist represents a "OrgLabelNotExist" kind of error.
+type ErrOrgLabelNotExist struct {
+	LabelID int64
+	OrgID   int64
+}
+
+// IsErrOrgLabelNotExist checks if an error is a OrgErrLabelNotExist.
+func IsErrOrgLabelNotExist(err error) bool {
+	_, ok := err.(ErrOrgLabelNotExist)
+	return ok
+}
+
+func (err ErrOrgLabelNotExist) Error() string {
+	return fmt.Sprintf("label does not exist [label_id: %d, org_id: %d]", err.LabelID, err.OrgID)
+}
+
+func (err ErrOrgLabelNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrLabelNotExist represents a "LabelNotExist" kind of error.
+type ErrLabelNotExist struct {
+	LabelID int64
+}
+
+// IsErrLabelNotExist checks if an error is a ErrLabelNotExist.
+func IsErrLabelNotExist(err error) bool {
+	_, ok := err.(ErrLabelNotExist)
+	return ok
+}
+
+func (err ErrLabelNotExist) Error() string {
+	return fmt.Sprintf("label does not exist [label_id: %d]", err.LabelID)
+}
+
+func (err ErrLabelNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Label represents a label of repository for issues.
+type Label struct {
+	ID              int64 `xorm:"pk autoincr"`
+	RepoID          int64 `xorm:"INDEX"`
+	OrgID           int64 `xorm:"INDEX"`
+	Name            string
+	Exclusive       bool
+	Description     string
+	Color           string `xorm:"VARCHAR(7)"`
+	NumIssues       int
+	NumClosedIssues int
+	CreatedUnix     timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix     timeutil.TimeStamp `xorm:"INDEX updated"`
+
+	NumOpenIssues     int    `xorm:"-"`
+	NumOpenRepoIssues int64  `xorm:"-"`
+	IsChecked         bool   `xorm:"-"`
+	QueryString       string `xorm:"-"`
+	IsSelected        bool   `xorm:"-"`
+	IsExcluded        bool   `xorm:"-"`
+
+	ArchivedUnix timeutil.TimeStamp `xorm:"DEFAULT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(Label))
+	db.RegisterModel(new(IssueLabel))
+}
+
+// CalOpenIssues sets the number of open issues of a label based on the already stored number of closed issues.
+func (l *Label) CalOpenIssues() {
+	l.NumOpenIssues = l.NumIssues - l.NumClosedIssues
+}
+
+// SetArchived set the label as archived
+func (l *Label) SetArchived(isArchived bool) {
+	if !isArchived {
+		l.ArchivedUnix = timeutil.TimeStamp(0)
+	} else if isArchived && !l.IsArchived() {
+		// Only change the date when it is newly archived.
+		l.ArchivedUnix = timeutil.TimeStampNow()
+	}
+}
+
+// IsArchived returns true if label is an archived
+func (l *Label) IsArchived() bool {
+	return !l.ArchivedUnix.IsZero()
+}
+
+// CalOpenOrgIssues calculates the open issues of a label for a specific repo
+func (l *Label) CalOpenOrgIssues(ctx context.Context, repoID, labelID int64) {
+	counts, _ := CountIssuesByRepo(ctx, &IssuesOptions{
+		RepoIDs:  []int64{repoID},
+		LabelIDs: []int64{labelID},
+		IsClosed: optional.Some(false),
+	})
+
+	for _, count := range counts {
+		l.NumOpenRepoIssues += count
+	}
+}
+
+// LoadSelectedLabelsAfterClick calculates the set of selected labels when a label is clicked
+func (l *Label) LoadSelectedLabelsAfterClick(currentSelectedLabels []int64, currentSelectedExclusiveScopes []string) {
+	labelQuerySlice := []int64{}
+	labelSelected := false
+	exclusiveScope := l.ExclusiveScope()
+	for i, curSel := range currentSelectedLabels {
+		if curSel == l.ID {
+			labelSelected = true
+		} else if -curSel == l.ID {
+			labelSelected = true
+			l.IsExcluded = true
+		} else if curSel != 0 {
+			// Exclude other labels in the same scope from selection
+			if curSel < 0 || exclusiveScope == "" || exclusiveScope != currentSelectedExclusiveScopes[i] {
+				labelQuerySlice = append(labelQuerySlice, curSel)
+			}
+		}
+	}
+
+	if !labelSelected {
+		labelQuerySlice = append(labelQuerySlice, l.ID)
+	}
+	l.IsSelected = labelSelected
+
+	// Sort and deduplicate the ids to avoid the crawlers asking for the
+	// same thing with simply a different order of parameters
+	slices.Sort(labelQuerySlice)
+	labelQuerySlice = slices.Compact(labelQuerySlice)
+	// Quick conversion (strings.Join() doesn't accept slices of Int64)
+	labelQuerySliceStrings := make([]string, len(labelQuerySlice))
+	for i, x := range labelQuerySlice {
+		labelQuerySliceStrings[i] = strconv.FormatInt(x, 10)
+	}
+	l.QueryString = strings.Join(labelQuerySliceStrings, ",")
+}
+
+// BelongsToOrg returns true if label is an organization label
+func (l *Label) BelongsToOrg() bool {
+	return l.OrgID > 0
+}
+
+// BelongsToRepo returns true if label is a repository label
+func (l *Label) BelongsToRepo() bool {
+	return l.RepoID > 0
+}
+
+// ExclusiveScope returns scope substring of label name, or empty string if none exists
+func (l *Label) ExclusiveScope() string {
+	if !l.Exclusive {
+		return ""
+	}
+	lastIndex := strings.LastIndex(l.Name, "/")
+	if lastIndex == -1 || lastIndex == 0 || lastIndex == len(l.Name)-1 {
+		return ""
+	}
+	return l.Name[:lastIndex]
+}
+
+// NewLabel creates a new label
+func NewLabel(ctx context.Context, l *Label) error {
+	color, err := label.NormalizeColor(l.Color)
+	if err != nil {
+		return err
+	}
+	l.Color = color
+
+	return db.Insert(ctx, l)
+}
+
+// NewLabels creates new labels
+func NewLabels(ctx context.Context, labels ...*Label) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	for _, l := range labels {
+		color, err := label.NormalizeColor(l.Color)
+		if err != nil {
+			return err
+		}
+		l.Color = color
+
+		if err := db.Insert(ctx, l); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
+
+// UpdateLabel updates label information.
+func UpdateLabel(ctx context.Context, l *Label) error {
+	color, err := label.NormalizeColor(l.Color)
+	if err != nil {
+		return err
+	}
+	l.Color = color
+
+	return updateLabelCols(ctx, l, "name", "description", "color", "exclusive", "archived_unix")
+}
+
+// DeleteLabel delete a label
+func DeleteLabel(ctx context.Context, id, labelID int64) error {
+	l, err := GetLabelByID(ctx, labelID)
+	if err != nil {
+		if IsErrLabelNotExist(err) {
+			return nil
+		}
+		return err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	sess := db.GetEngine(ctx)
+
+	if l.BelongsToOrg() && l.OrgID != id {
+		return nil
+	}
+	if l.BelongsToRepo() && l.RepoID != id {
+		return nil
+	}
+
+	if _, err = db.DeleteByID[Label](ctx, labelID); err != nil {
+		return err
+	} else if _, err = sess.
+		Where("label_id = ?", labelID).
+		Delete(new(IssueLabel)); err != nil {
+		return err
+	}
+
+	// delete comments about now deleted label_id
+	if _, err = sess.Where("label_id = ?", labelID).Cols("label_id").Delete(&Comment{}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// GetLabelByID returns a label by given ID.
+func GetLabelByID(ctx context.Context, labelID int64) (*Label, error) {
+	if labelID <= 0 {
+		return nil, ErrLabelNotExist{labelID}
+	}
+
+	l := &Label{}
+	has, err := db.GetEngine(ctx).ID(labelID).Get(l)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrLabelNotExist{l.ID}
+	}
+	return l, nil
+}
+
+// GetLabelsByIDs returns a list of labels by IDs
+func GetLabelsByIDs(ctx context.Context, labelIDs []int64, cols ...string) ([]*Label, error) {
+	labels := make([]*Label, 0, len(labelIDs))
+	return labels, db.GetEngine(ctx).Table("label").
+		In("id", labelIDs).
+		Asc("name").
+		Cols(cols...).
+		Find(&labels)
+}
+
+// GetLabelInRepoByName returns a label by name in given repository.
+func GetLabelInRepoByName(ctx context.Context, repoID int64, labelName string) (*Label, error) {
+	if len(labelName) == 0 || repoID <= 0 {
+		return nil, ErrRepoLabelNotExist{0, repoID}
+	}
+
+	l, exist, err := db.Get[Label](ctx, builder.Eq{"name": labelName, "repo_id": repoID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrRepoLabelNotExist{0, repoID}
+	}
+	return l, nil
+}
+
+// GetLabelInRepoByID returns a label by ID in given repository.
+func GetLabelInRepoByID(ctx context.Context, repoID, labelID int64) (*Label, error) {
+	if labelID <= 0 || repoID <= 0 {
+		return nil, ErrRepoLabelNotExist{labelID, repoID}
+	}
+
+	l, exist, err := db.Get[Label](ctx, builder.Eq{"id": labelID, "repo_id": repoID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrRepoLabelNotExist{labelID, repoID}
+	}
+	return l, nil
+}
+
+// GetLabelIDsInRepoByNames returns a list of labelIDs by names in a given
+// repository.
+// it silently ignores label names that do not belong to the repository.
+func GetLabelIDsInRepoByNames(ctx context.Context, repoID int64, labelNames []string) ([]int64, error) {
+	labelIDs := make([]int64, 0, len(labelNames))
+	return labelIDs, db.GetEngine(ctx).Table("label").
+		Where("repo_id = ?", repoID).
+		In("name", labelNames).
+		Asc("name").
+		Cols("id").
+		Find(&labelIDs)
+}
+
+// BuildLabelNamesIssueIDsCondition returns a builder where get issue ids match label names
+func BuildLabelNamesIssueIDsCondition(labelNames []string) *builder.Builder {
+	return builder.Select("issue_label.issue_id").
+		From("issue_label").
+		InnerJoin("label", "label.id = issue_label.label_id").
+		Where(
+			builder.In("label.name", labelNames),
+		).
+		GroupBy("issue_label.issue_id")
+}
+
+// GetLabelsInRepoByIDs returns a list of labels by IDs in given repository,
+// it silently ignores label IDs that do not belong to the repository.
+func GetLabelsInRepoByIDs(ctx context.Context, repoID int64, labelIDs []int64) ([]*Label, error) {
+	labels := make([]*Label, 0, len(labelIDs))
+	return labels, db.GetEngine(ctx).
+		Where("repo_id = ?", repoID).
+		In("id", labelIDs).
+		Asc("name").
+		Find(&labels)
+}
+
+// GetLabelsByRepoID returns all labels that belong to given repository by ID.
+func GetLabelsByRepoID(ctx context.Context, repoID int64, sortType string, listOptions db.ListOptions) ([]*Label, error) {
+	if repoID <= 0 {
+		return nil, ErrRepoLabelNotExist{0, repoID}
+	}
+	labels := make([]*Label, 0, 10)
+	sess := db.GetEngine(ctx).Where("repo_id = ?", repoID)
+
+	switch sortType {
+	case "reversealphabetically":
+		sess.Desc("name")
+	case "leastissues":
+		sess.Asc("num_issues")
+	case "mostissues":
+		sess.Desc("num_issues")
+	default:
+		sess.Asc("name")
+	}
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+	}
+
+	return labels, sess.Find(&labels)
+}
+
+// CountLabelsByRepoID count number of all labels that belong to given repository by ID.
+func CountLabelsByRepoID(ctx context.Context, repoID int64) (int64, error) {
+	return db.GetEngine(ctx).Where("repo_id = ?", repoID).Count(&Label{})
+}
+
+// GetLabelInOrgByName returns a label by name in given organization.
+func GetLabelInOrgByName(ctx context.Context, orgID int64, labelName string) (*Label, error) {
+	if len(labelName) == 0 || orgID <= 0 {
+		return nil, ErrOrgLabelNotExist{0, orgID}
+	}
+
+	l, exist, err := db.Get[Label](ctx, builder.Eq{"name": labelName, "org_id": orgID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrOrgLabelNotExist{0, orgID}
+	}
+	return l, nil
+}
+
+// GetLabelInOrgByID returns a label by ID in given organization.
+func GetLabelInOrgByID(ctx context.Context, orgID, labelID int64) (*Label, error) {
+	if labelID <= 0 || orgID <= 0 {
+		return nil, ErrOrgLabelNotExist{labelID, orgID}
+	}
+
+	l, exist, err := db.Get[Label](ctx, builder.Eq{"id": labelID, "org_id": orgID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrOrgLabelNotExist{labelID, orgID}
+	}
+	return l, nil
+}
+
+// GetLabelsInOrgByIDs returns a list of labels by IDs in given organization,
+// it silently ignores label IDs that do not belong to the organization.
+func GetLabelsInOrgByIDs(ctx context.Context, orgID int64, labelIDs []int64) ([]*Label, error) {
+	labels := make([]*Label, 0, len(labelIDs))
+	return labels, db.GetEngine(ctx).
+		Where("org_id = ?", orgID).
+		In("id", labelIDs).
+		Asc("name").
+		Find(&labels)
+}
+
+// GetLabelsByOrgID returns all labels that belong to given organization by ID.
+func GetLabelsByOrgID(ctx context.Context, orgID int64, sortType string, listOptions db.ListOptions) ([]*Label, error) {
+	if orgID <= 0 {
+		return nil, ErrOrgLabelNotExist{0, orgID}
+	}
+	labels := make([]*Label, 0, 10)
+	sess := db.GetEngine(ctx).Where("org_id = ?", orgID)
+
+	switch sortType {
+	case "reversealphabetically":
+		sess.Desc("name")
+	case "leastissues":
+		sess.Asc("num_issues")
+	case "mostissues":
+		sess.Desc("num_issues")
+	default:
+		sess.Asc("name")
+	}
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+	}
+
+	return labels, sess.Find(&labels)
+}
+
+// GetLabelIDsByNames returns a list of labelIDs by names.
+// It doesn't filter them by repo or org, so it could return labels belonging to different repos/orgs.
+// It's used for filtering issues via indexer, otherwise it would be useless.
+// Since it could return labels with the same name, so the length of returned ids could be more than the length of names.
+func GetLabelIDsByNames(ctx context.Context, labelNames []string) ([]int64, error) {
+	labelIDs := make([]int64, 0, len(labelNames))
+	return labelIDs, db.GetEngine(ctx).Table("label").
+		In("name", labelNames).
+		Cols("id").
+		Find(&labelIDs)
+}
+
+// CountLabelsByOrgID count all labels that belong to given organization by ID.
+func CountLabelsByOrgID(ctx context.Context, orgID int64) (int64, error) {
+	return db.GetEngine(ctx).Where("org_id = ?", orgID).Count(&Label{})
+}
+
+func updateLabelCols(ctx context.Context, l *Label, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(l.ID).
+		SetExpr("num_issues",
+			builder.Select("count(*)").From("issue_label").
+				Where(builder.Eq{"label_id": l.ID}),
+		).
+		SetExpr("num_closed_issues",
+			builder.Select("count(*)").From("issue_label").
+				InnerJoin("issue", "issue_label.issue_id = issue.id").
+				Where(builder.Eq{
+					"issue_label.label_id": l.ID,
+					"issue.is_closed":      true,
+				}),
+		).
+		Cols(cols...).Update(l)
+	return err
+}
diff --git a/models/issues/label_test.go b/models/issues/label_test.go
new file mode 100644
index 0000000..b03fc1c
--- /dev/null
+++ b/models/issues/label_test.go
@@ -0,0 +1,422 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLabel_CalOpenIssues(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label.CalOpenIssues()
+	assert.EqualValues(t, 2, label.NumOpenIssues)
+}
+
+func TestLabel_LoadSelectedLabelsAfterClick(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	// Loading the label id:8 (scope/label2) which have a scope and an
+	// exclusivity with id:7 (scope/label1)
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 8})
+
+	// First test : with negative and scope
+	label.LoadSelectedLabelsAfterClick([]int64{1, -8}, []string{"", "scope"})
+	assert.Equal(t, "1", label.QueryString)
+	assert.True(t, label.IsSelected)
+
+	// Second test : with duplicates
+	label.LoadSelectedLabelsAfterClick([]int64{1, 7, 1, 7, 7}, []string{"", "scope", "", "scope", "scope"})
+	assert.Equal(t, "1,8", label.QueryString)
+	assert.False(t, label.IsSelected)
+
+	// Third test : empty set
+	label.LoadSelectedLabelsAfterClick([]int64{}, []string{})
+	assert.False(t, label.IsSelected)
+	assert.Equal(t, "8", label.QueryString)
+}
+
+func TestLabel_ExclusiveScope(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 7})
+	assert.Equal(t, "scope", label.ExclusiveScope())
+
+	label = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 9})
+	assert.Equal(t, "scope/subscope", label.ExclusiveScope())
+}
+
+func TestNewLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	labels := []*issues_model.Label{
+		{RepoID: 2, Name: "labelName2", Color: "#123456"},
+		{RepoID: 3, Name: "labelName3", Color: "#123"},
+		{RepoID: 4, Name: "labelName4", Color: "ABCDEF"},
+		{RepoID: 5, Name: "labelName5", Color: "DEF"},
+	}
+	require.Error(t, issues_model.NewLabel(db.DefaultContext, &issues_model.Label{RepoID: 3, Name: "invalid Color", Color: ""}))
+	require.Error(t, issues_model.NewLabel(db.DefaultContext, &issues_model.Label{RepoID: 3, Name: "invalid Color", Color: "#45G"}))
+	require.Error(t, issues_model.NewLabel(db.DefaultContext, &issues_model.Label{RepoID: 3, Name: "invalid Color", Color: "#12345G"}))
+	require.Error(t, issues_model.NewLabel(db.DefaultContext, &issues_model.Label{RepoID: 3, Name: "invalid Color", Color: "45G"}))
+	require.Error(t, issues_model.NewLabel(db.DefaultContext, &issues_model.Label{RepoID: 3, Name: "invalid Color", Color: "12345G"}))
+	for _, label := range labels {
+		unittest.AssertNotExistsBean(t, label)
+	}
+	require.NoError(t, issues_model.NewLabels(db.DefaultContext, labels...))
+	for _, label := range labels {
+		unittest.AssertExistsAndLoadBean(t, label, unittest.Cond("id = ?", label.ID))
+	}
+	unittest.CheckConsistencyFor(t, &issues_model.Label{}, &repo_model.Repository{})
+}
+
+func TestGetLabelByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label, err := issues_model.GetLabelByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, label.ID)
+
+	_, err = issues_model.GetLabelByID(db.DefaultContext, unittest.NonexistentID)
+	assert.True(t, issues_model.IsErrLabelNotExist(err))
+}
+
+func TestGetLabelInRepoByName(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label, err := issues_model.GetLabelInRepoByName(db.DefaultContext, 1, "label1")
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, label.ID)
+	assert.Equal(t, "label1", label.Name)
+
+	_, err = issues_model.GetLabelInRepoByName(db.DefaultContext, 1, "")
+	assert.True(t, issues_model.IsErrRepoLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInRepoByName(db.DefaultContext, unittest.NonexistentID, "nonexistent")
+	assert.True(t, issues_model.IsErrRepoLabelNotExist(err))
+}
+
+func TestGetLabelInRepoByNames(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	labelIDs, err := issues_model.GetLabelIDsInRepoByNames(db.DefaultContext, 1, []string{"label1", "label2"})
+	require.NoError(t, err)
+
+	assert.Len(t, labelIDs, 2)
+
+	assert.Equal(t, int64(1), labelIDs[0])
+	assert.Equal(t, int64(2), labelIDs[1])
+}
+
+func TestGetLabelInRepoByNamesDiscardsNonExistentLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	// label3 doesn't exists.. See labels.yml
+	labelIDs, err := issues_model.GetLabelIDsInRepoByNames(db.DefaultContext, 1, []string{"label1", "label2", "label3"})
+	require.NoError(t, err)
+
+	assert.Len(t, labelIDs, 2)
+
+	assert.Equal(t, int64(1), labelIDs[0])
+	assert.Equal(t, int64(2), labelIDs[1])
+	require.NoError(t, err)
+}
+
+func TestGetLabelInRepoByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label, err := issues_model.GetLabelInRepoByID(db.DefaultContext, 1, 1)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, label.ID)
+
+	_, err = issues_model.GetLabelInRepoByID(db.DefaultContext, 1, -1)
+	assert.True(t, issues_model.IsErrRepoLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInRepoByID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	assert.True(t, issues_model.IsErrRepoLabelNotExist(err))
+}
+
+func TestGetLabelsInRepoByIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	labels, err := issues_model.GetLabelsInRepoByIDs(db.DefaultContext, 1, []int64{1, 2, unittest.NonexistentID})
+	require.NoError(t, err)
+	if assert.Len(t, labels, 2) {
+		assert.EqualValues(t, 1, labels[0].ID)
+		assert.EqualValues(t, 2, labels[1].ID)
+	}
+}
+
+func TestGetLabelsByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(repoID int64, sortType string, expectedIssueIDs []int64) {
+		labels, err := issues_model.GetLabelsByRepoID(db.DefaultContext, repoID, sortType, db.ListOptions{})
+		require.NoError(t, err)
+		assert.Len(t, labels, len(expectedIssueIDs))
+		for i, label := range labels {
+			assert.EqualValues(t, expectedIssueIDs[i], label.ID)
+		}
+	}
+	testSuccess(1, "leastissues", []int64{2, 1})
+	testSuccess(1, "mostissues", []int64{1, 2})
+	testSuccess(1, "reversealphabetically", []int64{2, 1})
+	testSuccess(1, "default", []int64{1, 2})
+}
+
+// Org versions
+
+func TestGetLabelInOrgByName(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label, err := issues_model.GetLabelInOrgByName(db.DefaultContext, 3, "orglabel3")
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, label.ID)
+	assert.Equal(t, "orglabel3", label.Name)
+
+	_, err = issues_model.GetLabelInOrgByName(db.DefaultContext, 3, "")
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByName(db.DefaultContext, 0, "orglabel3")
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByName(db.DefaultContext, -1, "orglabel3")
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByName(db.DefaultContext, unittest.NonexistentID, "nonexistent")
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+}
+
+func TestGetLabelInOrgByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label, err := issues_model.GetLabelInOrgByID(db.DefaultContext, 3, 3)
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, label.ID)
+
+	_, err = issues_model.GetLabelInOrgByID(db.DefaultContext, 3, -1)
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByID(db.DefaultContext, 0, 3)
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByID(db.DefaultContext, -1, 3)
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelInOrgByID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+}
+
+func TestGetLabelsInOrgByIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	labels, err := issues_model.GetLabelsInOrgByIDs(db.DefaultContext, 3, []int64{3, 4, unittest.NonexistentID})
+	require.NoError(t, err)
+	if assert.Len(t, labels, 2) {
+		assert.EqualValues(t, 3, labels[0].ID)
+		assert.EqualValues(t, 4, labels[1].ID)
+	}
+}
+
+func TestGetLabelsByOrgID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(orgID int64, sortType string, expectedIssueIDs []int64) {
+		labels, err := issues_model.GetLabelsByOrgID(db.DefaultContext, orgID, sortType, db.ListOptions{})
+		require.NoError(t, err)
+		assert.Len(t, labels, len(expectedIssueIDs))
+		for i, label := range labels {
+			assert.EqualValues(t, expectedIssueIDs[i], label.ID)
+		}
+	}
+	testSuccess(3, "leastissues", []int64{3, 4})
+	testSuccess(3, "mostissues", []int64{4, 3})
+	testSuccess(3, "reversealphabetically", []int64{4, 3})
+	testSuccess(3, "default", []int64{3, 4})
+
+	var err error
+	_, err = issues_model.GetLabelsByOrgID(db.DefaultContext, 0, "leastissues", db.ListOptions{})
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+
+	_, err = issues_model.GetLabelsByOrgID(db.DefaultContext, -1, "leastissues", db.ListOptions{})
+	assert.True(t, issues_model.IsErrOrgLabelNotExist(err))
+}
+
+//
+
+func TestGetLabelsByIssueID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	labels, err := issues_model.GetLabelsByIssueID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	if assert.Len(t, labels, 1) {
+		assert.EqualValues(t, 1, labels[0].ID)
+	}
+
+	labels, err = issues_model.GetLabelsByIssueID(db.DefaultContext, unittest.NonexistentID)
+	require.NoError(t, err)
+	assert.Empty(t, labels)
+}
+
+func TestUpdateLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	// make sure update won't overwrite it
+	update := &issues_model.Label{
+		ID:           label.ID,
+		Color:        "#ffff00",
+		Name:         "newLabelName",
+		Description:  label.Description,
+		Exclusive:    false,
+		ArchivedUnix: timeutil.TimeStamp(0),
+	}
+	label.Color = update.Color
+	label.Name = update.Name
+	require.NoError(t, issues_model.UpdateLabel(db.DefaultContext, update))
+	newLabel := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	assert.EqualValues(t, label.ID, newLabel.ID)
+	assert.EqualValues(t, label.Color, newLabel.Color)
+	assert.EqualValues(t, label.Name, newLabel.Name)
+	assert.EqualValues(t, label.Description, newLabel.Description)
+	assert.EqualValues(t, 0, newLabel.ArchivedUnix)
+	unittest.CheckConsistencyFor(t, &issues_model.Label{}, &repo_model.Repository{})
+}
+
+func TestDeleteLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	require.NoError(t, issues_model.DeleteLabel(db.DefaultContext, label.RepoID, label.ID))
+	unittest.AssertNotExistsBean(t, &issues_model.Label{ID: label.ID, RepoID: label.RepoID})
+
+	require.NoError(t, issues_model.DeleteLabel(db.DefaultContext, label.RepoID, label.ID))
+	unittest.AssertNotExistsBean(t, &issues_model.Label{ID: label.ID})
+
+	require.NoError(t, issues_model.DeleteLabel(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+	unittest.CheckConsistencyFor(t, &issues_model.Label{}, &repo_model.Repository{})
+}
+
+func TestHasIssueLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, issues_model.HasIssueLabel(db.DefaultContext, 1, 1))
+	assert.False(t, issues_model.HasIssueLabel(db.DefaultContext, 1, 2))
+	assert.False(t, issues_model.HasIssueLabel(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+}
+
+func TestNewIssueLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 2})
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	// add new IssueLabel
+	prevNumIssues := label.NumIssues
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, label, doer))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label.ID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{
+		Type:     issues_model.CommentTypeLabel,
+		PosterID: doer.ID,
+		IssueID:  issue.ID,
+		LabelID:  label.ID,
+		Content:  "1",
+	})
+	label = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 2})
+	assert.EqualValues(t, prevNumIssues+1, label.NumIssues)
+
+	// re-add existing IssueLabel
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, label, doer))
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{}, &issues_model.Label{})
+}
+
+func TestNewIssueExclusiveLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 18})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	otherLabel := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 6})
+	exclusiveLabelA := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 7})
+	exclusiveLabelB := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 8})
+
+	// coexisting regular and exclusive label
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, otherLabel, doer))
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, exclusiveLabelA, doer))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: otherLabel.ID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: exclusiveLabelA.ID})
+
+	// exclusive label replaces existing one
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, exclusiveLabelB, doer))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: otherLabel.ID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: exclusiveLabelB.ID})
+	unittest.AssertNotExistsBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: exclusiveLabelA.ID})
+
+	// exclusive label replaces existing one again
+	require.NoError(t, issues_model.NewIssueLabel(db.DefaultContext, issue, exclusiveLabelA, doer))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: otherLabel.ID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: exclusiveLabelA.ID})
+	unittest.AssertNotExistsBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: exclusiveLabelB.ID})
+}
+
+func TestNewIssueLabels(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	label1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	label2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 2})
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 5})
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	require.NoError(t, issues_model.NewIssueLabels(db.DefaultContext, issue, []*issues_model.Label{label1, label2}, doer))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label1.ID})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{
+		Type:     issues_model.CommentTypeLabel,
+		PosterID: doer.ID,
+		IssueID:  issue.ID,
+		LabelID:  label1.ID,
+		Content:  "1",
+	})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.IssueLabel{IssueID: issue.ID, LabelID: label1.ID})
+	label1 = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 1})
+	assert.EqualValues(t, 3, label1.NumIssues)
+	assert.EqualValues(t, 1, label1.NumClosedIssues)
+	label2 = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: 2})
+	assert.EqualValues(t, 1, label2.NumIssues)
+	assert.EqualValues(t, 1, label2.NumClosedIssues)
+
+	// corner case: test empty slice
+	require.NoError(t, issues_model.NewIssueLabels(db.DefaultContext, issue, []*issues_model.Label{}, doer))
+
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{}, &issues_model.Label{})
+}
+
+func TestDeleteIssueLabel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(labelID, issueID, doerID int64) {
+		label := unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: labelID})
+		issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issueID})
+		doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: doerID})
+
+		expectedNumIssues := label.NumIssues
+		expectedNumClosedIssues := label.NumClosedIssues
+		if unittest.BeanExists(t, &issues_model.IssueLabel{IssueID: issueID, LabelID: labelID}) {
+			expectedNumIssues--
+			if issue.IsClosed {
+				expectedNumClosedIssues--
+			}
+		}
+
+		ctx, committer, err := db.TxContext(db.DefaultContext)
+		defer committer.Close()
+		require.NoError(t, err)
+		require.NoError(t, issues_model.DeleteIssueLabel(ctx, issue, label, doer))
+		require.NoError(t, committer.Commit())
+
+		unittest.AssertNotExistsBean(t, &issues_model.IssueLabel{IssueID: issueID, LabelID: labelID})
+		unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{
+			Type:     issues_model.CommentTypeLabel,
+			PosterID: doerID,
+			IssueID:  issueID,
+			LabelID:  labelID,
+		}, `content=""`)
+		label = unittest.AssertExistsAndLoadBean(t, &issues_model.Label{ID: labelID})
+		assert.EqualValues(t, expectedNumIssues, label.NumIssues)
+		assert.EqualValues(t, expectedNumClosedIssues, label.NumClosedIssues)
+	}
+	testSuccess(1, 1, 2)
+	testSuccess(2, 5, 2)
+	testSuccess(1, 1, 2) // delete non-existent IssueLabel
+
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{}, &issues_model.Label{})
+}
diff --git a/models/issues/main_test.go b/models/issues/main_test.go
new file mode 100644
index 0000000..baabd66
--- /dev/null
+++ b/models/issues/main_test.go
@@ -0,0 +1,33 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/repo"
+	_ "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestFixturesAreConsistent(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	unittest.CheckConsistencyFor(t,
+		&issues_model.Issue{},
+		&issues_model.PullRequest{},
+		&issues_model.Milestone{},
+		&issues_model.Label{},
+	)
+}
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/issues/milestone.go b/models/issues/milestone.go
new file mode 100644
index 0000000..4b3cb0e
--- /dev/null
+++ b/models/issues/milestone.go
@@ -0,0 +1,394 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/optional"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrMilestoneNotExist represents a "MilestoneNotExist" kind of error.
+type ErrMilestoneNotExist struct {
+	ID     int64
+	RepoID int64
+	Name   string
+}
+
+// IsErrMilestoneNotExist checks if an error is a ErrMilestoneNotExist.
+func IsErrMilestoneNotExist(err error) bool {
+	_, ok := err.(ErrMilestoneNotExist)
+	return ok
+}
+
+func (err ErrMilestoneNotExist) Error() string {
+	if len(err.Name) > 0 {
+		return fmt.Sprintf("milestone does not exist [name: %s, repo_id: %d]", err.Name, err.RepoID)
+	}
+	return fmt.Sprintf("milestone does not exist [id: %d, repo_id: %d]", err.ID, err.RepoID)
+}
+
+func (err ErrMilestoneNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Milestone represents a milestone of repository.
+type Milestone struct {
+	ID              int64                  `xorm:"pk autoincr"`
+	RepoID          int64                  `xorm:"INDEX"`
+	Repo            *repo_model.Repository `xorm:"-"`
+	Name            string
+	Content         string        `xorm:"TEXT"`
+	RenderedContent template.HTML `xorm:"-"`
+	IsClosed        bool
+	NumIssues       int
+	NumClosedIssues int
+	NumOpenIssues   int  `xorm:"-"`
+	Completeness    int  // Percentage(1-100).
+	IsOverdue       bool `xorm:"-"`
+
+	CreatedUnix    timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX updated"`
+	DeadlineUnix   timeutil.TimeStamp
+	ClosedDateUnix timeutil.TimeStamp
+	DeadlineString string `xorm:"-"`
+
+	TotalTrackedTime int64 `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(Milestone))
+}
+
+// BeforeUpdate is invoked from XORM before updating this object.
+func (m *Milestone) BeforeUpdate() {
+	if m.NumIssues > 0 {
+		m.Completeness = m.NumClosedIssues * 100 / m.NumIssues
+	} else {
+		m.Completeness = 0
+	}
+}
+
+// AfterLoad is invoked from XORM after setting the value of a field of
+// this object.
+func (m *Milestone) AfterLoad() {
+	m.NumOpenIssues = m.NumIssues - m.NumClosedIssues
+	if m.DeadlineUnix.Year() == 9999 {
+		return
+	}
+
+	m.DeadlineString = m.DeadlineUnix.FormatDate()
+	if m.IsClosed {
+		m.IsOverdue = m.ClosedDateUnix >= m.DeadlineUnix
+	} else {
+		m.IsOverdue = timeutil.TimeStampNow() >= m.DeadlineUnix
+	}
+}
+
+// State returns string representation of milestone status.
+func (m *Milestone) State() api.StateType {
+	if m.IsClosed {
+		return api.StateClosed
+	}
+	return api.StateOpen
+}
+
+// NewMilestone creates new milestone of repository.
+func NewMilestone(ctx context.Context, m *Milestone) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	m.Name = strings.TrimSpace(m.Name)
+
+	if err = db.Insert(ctx, m); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `repository` SET num_milestones = num_milestones + 1 WHERE id = ?", m.RepoID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+// HasMilestoneByRepoID returns if the milestone exists in the repository.
+func HasMilestoneByRepoID(ctx context.Context, repoID, id int64) (bool, error) {
+	return db.GetEngine(ctx).ID(id).Where("repo_id=?", repoID).Exist(new(Milestone))
+}
+
+// GetMilestoneByRepoID returns the milestone in a repository.
+func GetMilestoneByRepoID(ctx context.Context, repoID, id int64) (*Milestone, error) {
+	m := new(Milestone)
+	has, err := db.GetEngine(ctx).ID(id).Where("repo_id=?", repoID).Get(m)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrMilestoneNotExist{ID: id, RepoID: repoID}
+	}
+	return m, nil
+}
+
+// GetMilestoneByRepoIDANDName return a milestone if one exist by name and repo
+func GetMilestoneByRepoIDANDName(ctx context.Context, repoID int64, name string) (*Milestone, error) {
+	var mile Milestone
+	has, err := db.GetEngine(ctx).Where("repo_id=? AND name=?", repoID, name).Get(&mile)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrMilestoneNotExist{Name: name, RepoID: repoID}
+	}
+	return &mile, nil
+}
+
+// UpdateMilestone updates information of given milestone.
+func UpdateMilestone(ctx context.Context, m *Milestone, oldIsClosed bool) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if m.IsClosed && !oldIsClosed {
+		m.ClosedDateUnix = timeutil.TimeStampNow()
+	}
+
+	if err := updateMilestone(ctx, m); err != nil {
+		return err
+	}
+
+	// if IsClosed changed, update milestone numbers of repository
+	if oldIsClosed != m.IsClosed {
+		if err := updateRepoMilestoneNum(ctx, m.RepoID); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
+
+func updateMilestone(ctx context.Context, m *Milestone) error {
+	m.Name = strings.TrimSpace(m.Name)
+	_, err := db.GetEngine(ctx).ID(m.ID).AllCols().Update(m)
+	if err != nil {
+		return err
+	}
+	return UpdateMilestoneCounters(ctx, m.ID)
+}
+
+func updateMilestoneCounters(ctx context.Context, id int64, noAutoTime bool, updatedUnix timeutil.TimeStamp) error {
+	e := db.GetEngine(ctx)
+	sess := e.ID(id).
+		SetExpr("num_issues", builder.Select("count(*)").From("issue").Where(
+			builder.Eq{"milestone_id": id},
+		)).
+		SetExpr("num_closed_issues", builder.Select("count(*)").From("issue").Where(
+			builder.Eq{
+				"milestone_id": id,
+				"is_closed":    true,
+			},
+		))
+	if noAutoTime {
+		sess.SetExpr("updated_unix", updatedUnix).NoAutoTime()
+	}
+	_, err := sess.Update(&Milestone{})
+	if err != nil {
+		return err
+	}
+	_, err = e.Exec("UPDATE `milestone` SET completeness=100*num_closed_issues/(CASE WHEN num_issues > 0 THEN num_issues ELSE 1 END) WHERE id=?",
+		id,
+	)
+	return err
+}
+
+// UpdateMilestoneCounters calculates NumIssues, NumClosesIssues and Completeness
+func UpdateMilestoneCounters(ctx context.Context, id int64) error {
+	return updateMilestoneCounters(ctx, id, false, 0)
+}
+
+// UpdateMilestoneCountersWithDate calculates NumIssues, NumClosesIssues and Completeness and set the UpdatedUnix date
+func UpdateMilestoneCountersWithDate(ctx context.Context, id int64, updatedUnix timeutil.TimeStamp) error {
+	return updateMilestoneCounters(ctx, id, true, updatedUnix)
+}
+
+// ChangeMilestoneStatusByRepoIDAndID changes a milestone open/closed status if the milestone ID is in the repo.
+func ChangeMilestoneStatusByRepoIDAndID(ctx context.Context, repoID, milestoneID int64, isClosed bool) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	m := &Milestone{
+		ID:     milestoneID,
+		RepoID: repoID,
+	}
+
+	has, err := db.GetEngine(ctx).ID(milestoneID).Where("repo_id = ?", repoID).Get(m)
+	if err != nil {
+		return err
+	} else if !has {
+		return ErrMilestoneNotExist{ID: milestoneID, RepoID: repoID}
+	}
+
+	if err := changeMilestoneStatus(ctx, m, isClosed); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// ChangeMilestoneStatus changes the milestone open/closed status.
+func ChangeMilestoneStatus(ctx context.Context, m *Milestone, isClosed bool) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := changeMilestoneStatus(ctx, m, isClosed); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func changeMilestoneStatus(ctx context.Context, m *Milestone, isClosed bool) error {
+	m.IsClosed = isClosed
+	if isClosed {
+		m.ClosedDateUnix = timeutil.TimeStampNow()
+	}
+
+	count, err := db.GetEngine(ctx).ID(m.ID).Where("repo_id = ? AND is_closed = ?", m.RepoID, !isClosed).Cols("is_closed", "closed_date_unix").Update(m)
+	if err != nil {
+		return err
+	}
+	if count < 1 {
+		return nil
+	}
+	return updateRepoMilestoneNum(ctx, m.RepoID)
+}
+
+// DeleteMilestoneByRepoID deletes a milestone from a repository.
+func DeleteMilestoneByRepoID(ctx context.Context, repoID, id int64) error {
+	m, err := GetMilestoneByRepoID(ctx, repoID, id)
+	if err != nil {
+		if IsErrMilestoneNotExist(err) {
+			return nil
+		}
+		return err
+	}
+
+	repo, err := repo_model.GetRepositoryByID(ctx, m.RepoID)
+	if err != nil {
+		return err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err = db.DeleteByID[Milestone](ctx, m.ID); err != nil {
+		return err
+	}
+
+	numMilestones, err := db.Count[Milestone](ctx, FindMilestoneOptions{
+		RepoID: repo.ID,
+	})
+	if err != nil {
+		return err
+	}
+	numClosedMilestones, err := db.Count[Milestone](ctx, FindMilestoneOptions{
+		RepoID:   repo.ID,
+		IsClosed: optional.Some(true),
+	})
+	if err != nil {
+		return err
+	}
+	repo.NumMilestones = int(numMilestones)
+	repo.NumClosedMilestones = int(numClosedMilestones)
+
+	if _, err = db.GetEngine(ctx).ID(repo.ID).Cols("num_milestones, num_closed_milestones").Update(repo); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `issue` SET milestone_id = 0 WHERE milestone_id = ?", m.ID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func updateRepoMilestoneNum(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `repository` SET num_milestones=(SELECT count(*) FROM milestone WHERE repo_id=?),num_closed_milestones=(SELECT count(*) FROM milestone WHERE repo_id=? AND is_closed=?) WHERE id=?",
+		repoID,
+		repoID,
+		true,
+		repoID,
+	)
+	return err
+}
+
+// LoadTotalTrackedTime loads the tracked time for the milestone
+func (m *Milestone) LoadTotalTrackedTime(ctx context.Context) error {
+	type totalTimesByMilestone struct {
+		MilestoneID int64
+		Time        int64
+	}
+	totalTime := &totalTimesByMilestone{MilestoneID: m.ID}
+	has, err := db.GetEngine(ctx).Table("issue").
+		Join("INNER", "milestone", "issue.milestone_id = milestone.id").
+		Join("LEFT", "tracked_time", "tracked_time.issue_id = issue.id").
+		Where("tracked_time.deleted = ?", false).
+		Select("milestone_id, sum(time) as time").
+		Where("milestone_id = ?", m.ID).
+		GroupBy("milestone_id").
+		Get(totalTime)
+	if err != nil {
+		return err
+	} else if !has {
+		return nil
+	}
+	m.TotalTrackedTime = totalTime.Time
+	return nil
+}
+
+// InsertMilestones creates milestones of repository.
+func InsertMilestones(ctx context.Context, ms ...*Milestone) (err error) {
+	if len(ms) == 0 {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	// to return the id, so we should not use batch insert
+	for _, m := range ms {
+		if _, err = sess.NoAutoTime().Insert(m); err != nil {
+			return err
+		}
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `repository` SET num_milestones = num_milestones + ? WHERE id = ?", len(ms), ms[0].RepoID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
diff --git a/models/issues/milestone_list.go b/models/issues/milestone_list.go
new file mode 100644
index 0000000..955ab23
--- /dev/null
+++ b/models/issues/milestone_list.go
@@ -0,0 +1,195 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/optional"
+
+	"xorm.io/builder"
+)
+
+// MilestoneList is a list of milestones offering additional functionality
+type MilestoneList []*Milestone
+
+func (milestones MilestoneList) getMilestoneIDs() []int64 {
+	ids := make([]int64, 0, len(milestones))
+	for _, ms := range milestones {
+		ids = append(ids, ms.ID)
+	}
+	return ids
+}
+
+// FindMilestoneOptions contain options to get milestones
+type FindMilestoneOptions struct {
+	db.ListOptions
+	RepoID   int64
+	IsClosed optional.Option[bool]
+	Name     string
+	SortType string
+	RepoCond builder.Cond
+	RepoIDs  []int64
+}
+
+func (opts FindMilestoneOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID != 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.IsClosed.Has() {
+		cond = cond.And(builder.Eq{"is_closed": opts.IsClosed.Value()})
+	}
+	if opts.RepoCond != nil && opts.RepoCond.IsValid() {
+		cond = cond.And(builder.In("repo_id", builder.Select("id").From("repository").Where(opts.RepoCond)))
+	}
+	if len(opts.RepoIDs) > 0 {
+		cond = cond.And(builder.In("repo_id", opts.RepoIDs))
+	}
+	if len(opts.Name) != 0 {
+		cond = cond.And(db.BuildCaseInsensitiveLike("name", opts.Name))
+	}
+
+	return cond
+}
+
+func (opts FindMilestoneOptions) ToOrders() string {
+	switch opts.SortType {
+	case "furthestduedate":
+		return "deadline_unix DESC"
+	case "leastcomplete":
+		return "completeness ASC"
+	case "mostcomplete":
+		return "completeness DESC"
+	case "leastissues":
+		return "num_issues ASC"
+	case "mostissues":
+		return "num_issues DESC"
+	case "id":
+		return "id ASC"
+	case "name":
+		return "name DESC"
+	default:
+		return "deadline_unix ASC, name ASC"
+	}
+}
+
+// GetMilestoneIDsByNames returns a list of milestone ids by given names.
+// It doesn't filter them by repo, so it could return milestones belonging to different repos.
+// It's used for filtering issues via indexer, otherwise it would be useless.
+// Since it could return milestones with the same name, so the length of returned ids could be more than the length of names.
+func GetMilestoneIDsByNames(ctx context.Context, names []string) ([]int64, error) {
+	var ids []int64
+	return ids, db.GetEngine(ctx).Table("milestone").
+		Where(db.BuildCaseInsensitiveIn("name", names)).
+		Cols("id").
+		Find(&ids)
+}
+
+// LoadTotalTrackedTimes loads for every milestone in the list the TotalTrackedTime by a batch request
+func (milestones MilestoneList) LoadTotalTrackedTimes(ctx context.Context) error {
+	type totalTimesByMilestone struct {
+		MilestoneID int64
+		Time        int64
+	}
+	if len(milestones) == 0 {
+		return nil
+	}
+	trackedTimes := make(map[int64]int64, len(milestones))
+
+	// Get total tracked time by milestone_id
+	rows, err := db.GetEngine(ctx).Table("issue").
+		Join("INNER", "milestone", "issue.milestone_id = milestone.id").
+		Join("LEFT", "tracked_time", "tracked_time.issue_id = issue.id").
+		Where("tracked_time.deleted = ?", false).
+		Select("milestone_id, sum(time) as time").
+		In("milestone_id", milestones.getMilestoneIDs()).
+		GroupBy("milestone_id").
+		Rows(new(totalTimesByMilestone))
+	if err != nil {
+		return err
+	}
+
+	defer rows.Close()
+
+	for rows.Next() {
+		var totalTime totalTimesByMilestone
+		err = rows.Scan(&totalTime)
+		if err != nil {
+			return err
+		}
+		trackedTimes[totalTime.MilestoneID] = totalTime.Time
+	}
+
+	for _, milestone := range milestones {
+		milestone.TotalTrackedTime = trackedTimes[milestone.ID]
+	}
+	return nil
+}
+
+// CountMilestonesByRepoCondAndKw map from repo conditions and the keyword of milestones' name to number of milestones matching the options`
+func CountMilestonesMap(ctx context.Context, opts FindMilestoneOptions) (map[int64]int64, error) {
+	sess := db.GetEngine(ctx).Where(opts.ToConds())
+
+	countsSlice := make([]*struct {
+		RepoID int64
+		Count  int64
+	}, 0, 10)
+	if err := sess.GroupBy("repo_id").
+		Select("repo_id AS repo_id, COUNT(*) AS count").
+		Table("milestone").
+		Find(&countsSlice); err != nil {
+		return nil, err
+	}
+
+	countMap := make(map[int64]int64, len(countsSlice))
+	for _, c := range countsSlice {
+		countMap[c.RepoID] = c.Count
+	}
+	return countMap, nil
+}
+
+// MilestonesStats represents milestone statistic information.
+type MilestonesStats struct {
+	OpenCount, ClosedCount int64
+}
+
+// Total returns the total counts of milestones
+func (m MilestonesStats) Total() int64 {
+	return m.OpenCount + m.ClosedCount
+}
+
+// GetMilestonesStatsByRepoCondAndKw returns milestone statistic information for dashboard by given repo conditions and name keyword.
+func GetMilestonesStatsByRepoCondAndKw(ctx context.Context, repoCond builder.Cond, keyword string) (*MilestonesStats, error) {
+	var err error
+	stats := &MilestonesStats{}
+
+	sess := db.GetEngine(ctx).Where("is_closed = ?", false)
+	if len(keyword) > 0 {
+		sess = sess.And(builder.Like{"UPPER(name)", strings.ToUpper(keyword)})
+	}
+	if repoCond.IsValid() {
+		sess.And(builder.In("repo_id", builder.Select("id").From("repository").Where(repoCond)))
+	}
+	stats.OpenCount, err = sess.Count(new(Milestone))
+	if err != nil {
+		return nil, err
+	}
+
+	sess = db.GetEngine(ctx).Where("is_closed = ?", true)
+	if len(keyword) > 0 {
+		sess = sess.And(builder.Like{"UPPER(name)", strings.ToUpper(keyword)})
+	}
+	if repoCond.IsValid() {
+		sess.And(builder.In("repo_id", builder.Select("id").From("repository").Where(repoCond)))
+	}
+	stats.ClosedCount, err = sess.Count(new(Milestone))
+	if err != nil {
+		return nil, err
+	}
+
+	return stats, nil
+}
diff --git a/models/issues/milestone_test.go b/models/issues/milestone_test.go
new file mode 100644
index 0000000..314cba3
--- /dev/null
+++ b/models/issues/milestone_test.go
@@ -0,0 +1,371 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"sort"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMilestone_State(t *testing.T) {
+	assert.Equal(t, api.StateOpen, (&issues_model.Milestone{IsClosed: false}).State())
+	assert.Equal(t, api.StateClosed, (&issues_model.Milestone{IsClosed: true}).State())
+}
+
+func TestGetMilestoneByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	milestone, err := issues_model.GetMilestoneByRepoID(db.DefaultContext, 1, 1)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, milestone.ID)
+	assert.EqualValues(t, 1, milestone.RepoID)
+
+	_, err = issues_model.GetMilestoneByRepoID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	assert.True(t, issues_model.IsErrMilestoneNotExist(err))
+}
+
+func TestGetMilestonesByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(repoID int64, state api.StateType) {
+		var isClosed optional.Option[bool]
+		switch state {
+		case api.StateClosed, api.StateOpen:
+			isClosed = optional.Some(state == api.StateClosed)
+		}
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		milestones, err := db.Find[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+			RepoID:   repo.ID,
+			IsClosed: isClosed,
+		})
+		require.NoError(t, err)
+
+		var n int
+
+		switch state {
+		case api.StateClosed:
+			n = repo.NumClosedMilestones
+
+		case api.StateAll:
+			n = repo.NumMilestones
+
+		case api.StateOpen:
+			fallthrough
+
+		default:
+			n = repo.NumOpenMilestones
+		}
+
+		assert.Len(t, milestones, n)
+		for _, milestone := range milestones {
+			assert.EqualValues(t, repoID, milestone.RepoID)
+		}
+	}
+	test(1, api.StateOpen)
+	test(1, api.StateAll)
+	test(1, api.StateClosed)
+	test(2, api.StateOpen)
+	test(2, api.StateAll)
+	test(2, api.StateClosed)
+	test(3, api.StateOpen)
+	test(3, api.StateClosed)
+	test(3, api.StateAll)
+
+	milestones, err := db.Find[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+		RepoID:   unittest.NonexistentID,
+		IsClosed: optional.Some(false),
+	})
+	require.NoError(t, err)
+	assert.Empty(t, milestones)
+}
+
+func TestGetMilestones(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	test := func(sortType string, sortCond func(*issues_model.Milestone) int) {
+		for _, page := range []int{0, 1} {
+			milestones, err := db.Find[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+				ListOptions: db.ListOptions{
+					Page:     page,
+					PageSize: setting.UI.IssuePagingNum,
+				},
+				RepoID:   repo.ID,
+				IsClosed: optional.Some(false),
+				SortType: sortType,
+			})
+			require.NoError(t, err)
+			assert.Len(t, milestones, repo.NumMilestones-repo.NumClosedMilestones)
+			values := make([]int, len(milestones))
+			for i, milestone := range milestones {
+				values[i] = sortCond(milestone)
+			}
+			assert.True(t, sort.IntsAreSorted(values))
+
+			milestones, err = db.Find[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+				ListOptions: db.ListOptions{
+					Page:     page,
+					PageSize: setting.UI.IssuePagingNum,
+				},
+				RepoID:   repo.ID,
+				IsClosed: optional.Some(true),
+				Name:     "",
+				SortType: sortType,
+			})
+			require.NoError(t, err)
+			assert.Len(t, milestones, repo.NumClosedMilestones)
+			values = make([]int, len(milestones))
+			for i, milestone := range milestones {
+				values[i] = sortCond(milestone)
+			}
+			assert.True(t, sort.IntsAreSorted(values))
+		}
+	}
+	test("furthestduedate", func(milestone *issues_model.Milestone) int {
+		return -int(milestone.DeadlineUnix)
+	})
+	test("leastcomplete", func(milestone *issues_model.Milestone) int {
+		return milestone.Completeness
+	})
+	test("mostcomplete", func(milestone *issues_model.Milestone) int {
+		return -milestone.Completeness
+	})
+	test("leastissues", func(milestone *issues_model.Milestone) int {
+		return milestone.NumIssues
+	})
+	test("mostissues", func(milestone *issues_model.Milestone) int {
+		return -milestone.NumIssues
+	})
+	test("soonestduedate", func(milestone *issues_model.Milestone) int {
+		return int(milestone.DeadlineUnix)
+	})
+}
+
+func TestCountRepoMilestones(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(repoID int64) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		count, err := db.Count[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+			RepoID: repoID,
+		})
+		require.NoError(t, err)
+		assert.EqualValues(t, repo.NumMilestones, count)
+	}
+	test(1)
+	test(2)
+	test(3)
+
+	count, err := db.Count[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+		RepoID: unittest.NonexistentID,
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+}
+
+func TestCountRepoClosedMilestones(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(repoID int64) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		count, err := db.Count[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+			RepoID:   repoID,
+			IsClosed: optional.Some(true),
+		})
+		require.NoError(t, err)
+		assert.EqualValues(t, repo.NumClosedMilestones, count)
+	}
+	test(1)
+	test(2)
+	test(3)
+
+	count, err := db.Count[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+		RepoID:   unittest.NonexistentID,
+		IsClosed: optional.Some(true),
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+}
+
+func TestCountMilestonesByRepoIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	milestonesCount := func(repoID int64) (int, int) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		return repo.NumOpenMilestones, repo.NumClosedMilestones
+	}
+	repo1OpenCount, repo1ClosedCount := milestonesCount(1)
+	repo2OpenCount, repo2ClosedCount := milestonesCount(2)
+
+	openCounts, err := issues_model.CountMilestonesMap(db.DefaultContext, issues_model.FindMilestoneOptions{
+		RepoIDs:  []int64{1, 2},
+		IsClosed: optional.Some(false),
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, repo1OpenCount, openCounts[1])
+	assert.EqualValues(t, repo2OpenCount, openCounts[2])
+
+	closedCounts, err := issues_model.CountMilestonesMap(db.DefaultContext,
+		issues_model.FindMilestoneOptions{
+			RepoIDs:  []int64{1, 2},
+			IsClosed: optional.Some(true),
+		})
+	require.NoError(t, err)
+	assert.EqualValues(t, repo1ClosedCount, closedCounts[1])
+	assert.EqualValues(t, repo2ClosedCount, closedCounts[2])
+}
+
+func TestGetMilestonesByRepoIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	test := func(sortType string, sortCond func(*issues_model.Milestone) int) {
+		for _, page := range []int{0, 1} {
+			openMilestones, err := db.Find[issues_model.Milestone](db.DefaultContext, issues_model.FindMilestoneOptions{
+				ListOptions: db.ListOptions{
+					Page:     page,
+					PageSize: setting.UI.IssuePagingNum,
+				},
+				RepoIDs:  []int64{repo1.ID, repo2.ID},
+				IsClosed: optional.Some(false),
+				SortType: sortType,
+			})
+			require.NoError(t, err)
+			assert.Len(t, openMilestones, repo1.NumOpenMilestones+repo2.NumOpenMilestones)
+			values := make([]int, len(openMilestones))
+			for i, milestone := range openMilestones {
+				values[i] = sortCond(milestone)
+			}
+			assert.True(t, sort.IntsAreSorted(values))
+
+			closedMilestones, err := db.Find[issues_model.Milestone](db.DefaultContext,
+				issues_model.FindMilestoneOptions{
+					ListOptions: db.ListOptions{
+						Page:     page,
+						PageSize: setting.UI.IssuePagingNum,
+					},
+					RepoIDs:  []int64{repo1.ID, repo2.ID},
+					IsClosed: optional.Some(true),
+					SortType: sortType,
+				})
+			require.NoError(t, err)
+			assert.Len(t, closedMilestones, repo1.NumClosedMilestones+repo2.NumClosedMilestones)
+			values = make([]int, len(closedMilestones))
+			for i, milestone := range closedMilestones {
+				values[i] = sortCond(milestone)
+			}
+			assert.True(t, sort.IntsAreSorted(values))
+		}
+	}
+	test("furthestduedate", func(milestone *issues_model.Milestone) int {
+		return -int(milestone.DeadlineUnix)
+	})
+	test("leastcomplete", func(milestone *issues_model.Milestone) int {
+		return milestone.Completeness
+	})
+	test("mostcomplete", func(milestone *issues_model.Milestone) int {
+		return -milestone.Completeness
+	})
+	test("leastissues", func(milestone *issues_model.Milestone) int {
+		return milestone.NumIssues
+	})
+	test("mostissues", func(milestone *issues_model.Milestone) int {
+		return -milestone.NumIssues
+	})
+	test("soonestduedate", func(milestone *issues_model.Milestone) int {
+		return int(milestone.DeadlineUnix)
+	})
+}
+
+func TestNewMilestone(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	milestone := &issues_model.Milestone{
+		RepoID:  1,
+		Name:    "milestoneName",
+		Content: "milestoneContent",
+	}
+
+	require.NoError(t, issues_model.NewMilestone(db.DefaultContext, milestone))
+	unittest.AssertExistsAndLoadBean(t, milestone)
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: milestone.RepoID}, &issues_model.Milestone{})
+}
+
+func TestChangeMilestoneStatus(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	milestone := unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1})
+
+	require.NoError(t, issues_model.ChangeMilestoneStatus(db.DefaultContext, milestone, true))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1}, "is_closed=1")
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: milestone.RepoID}, &issues_model.Milestone{})
+
+	require.NoError(t, issues_model.ChangeMilestoneStatus(db.DefaultContext, milestone, false))
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1}, "is_closed=0")
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: milestone.RepoID}, &issues_model.Milestone{})
+}
+
+func TestDeleteMilestoneByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	require.NoError(t, issues_model.DeleteMilestoneByRepoID(db.DefaultContext, 1, 1))
+	unittest.AssertNotExistsBean(t, &issues_model.Milestone{ID: 1})
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: 1})
+
+	require.NoError(t, issues_model.DeleteMilestoneByRepoID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+}
+
+func TestUpdateMilestone(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	milestone := unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1})
+	milestone.Name = " newMilestoneName  "
+	milestone.Content = "newMilestoneContent"
+	require.NoError(t, issues_model.UpdateMilestone(db.DefaultContext, milestone, milestone.IsClosed))
+	milestone = unittest.AssertExistsAndLoadBean(t, &issues_model.Milestone{ID: 1})
+	assert.EqualValues(t, "newMilestoneName", milestone.Name)
+	unittest.CheckConsistencyFor(t, &issues_model.Milestone{})
+}
+
+func TestUpdateMilestoneCounters(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{MilestoneID: 1},
+		"is_closed=0")
+
+	issue.IsClosed = true
+	issue.ClosedUnix = timeutil.TimeStampNow()
+	_, err := db.GetEngine(db.DefaultContext).ID(issue.ID).Cols("is_closed", "closed_unix").Update(issue)
+	require.NoError(t, err)
+	require.NoError(t, issues_model.UpdateMilestoneCounters(db.DefaultContext, issue.MilestoneID))
+	unittest.CheckConsistencyFor(t, &issues_model.Milestone{})
+
+	issue.IsClosed = false
+	issue.ClosedUnix = 0
+	_, err = db.GetEngine(db.DefaultContext).ID(issue.ID).Cols("is_closed", "closed_unix").Update(issue)
+	require.NoError(t, err)
+	require.NoError(t, issues_model.UpdateMilestoneCounters(db.DefaultContext, issue.MilestoneID))
+	unittest.CheckConsistencyFor(t, &issues_model.Milestone{})
+}
+
+func TestMigrate_InsertMilestones(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	reponame := "repo1"
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: reponame})
+	name := "milestonetest1"
+	ms := &issues_model.Milestone{
+		RepoID: repo.ID,
+		Name:   name,
+	}
+	err := issues_model.InsertMilestones(db.DefaultContext, ms)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, ms)
+	repoModified := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repo.ID})
+	assert.EqualValues(t, repo.NumMilestones+1, repoModified.NumMilestones)
+
+	unittest.CheckConsistencyFor(t, &issues_model.Milestone{})
+}
diff --git a/models/issues/pull.go b/models/issues/pull.go
new file mode 100644
index 0000000..45e2e19
--- /dev/null
+++ b/models/issues/pull.go
@@ -0,0 +1,1105 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	org_model "code.gitea.io/gitea/models/organization"
+	pull_model "code.gitea.io/gitea/models/pull"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrPullRequestNotExist represents a "PullRequestNotExist" kind of error.
+type ErrPullRequestNotExist struct {
+	ID         int64
+	IssueID    int64
+	HeadRepoID int64
+	BaseRepoID int64
+	HeadBranch string
+	BaseBranch string
+}
+
+// IsErrPullRequestNotExist checks if an error is a ErrPullRequestNotExist.
+func IsErrPullRequestNotExist(err error) bool {
+	_, ok := err.(ErrPullRequestNotExist)
+	return ok
+}
+
+func (err ErrPullRequestNotExist) Error() string {
+	return fmt.Sprintf("pull request does not exist [id: %d, issue_id: %d, head_repo_id: %d, base_repo_id: %d, head_branch: %s, base_branch: %s]",
+		err.ID, err.IssueID, err.HeadRepoID, err.BaseRepoID, err.HeadBranch, err.BaseBranch)
+}
+
+func (err ErrPullRequestNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrPullRequestAlreadyExists represents a "PullRequestAlreadyExists"-error
+type ErrPullRequestAlreadyExists struct {
+	ID         int64
+	IssueID    int64
+	HeadRepoID int64
+	BaseRepoID int64
+	HeadBranch string
+	BaseBranch string
+}
+
+// IsErrPullRequestAlreadyExists checks if an error is a ErrPullRequestAlreadyExists.
+func IsErrPullRequestAlreadyExists(err error) bool {
+	_, ok := err.(ErrPullRequestAlreadyExists)
+	return ok
+}
+
+// Error does pretty-printing :D
+func (err ErrPullRequestAlreadyExists) Error() string {
+	return fmt.Sprintf("pull request already exists for these targets [id: %d, issue_id: %d, head_repo_id: %d, base_repo_id: %d, head_branch: %s, base_branch: %s]",
+		err.ID, err.IssueID, err.HeadRepoID, err.BaseRepoID, err.HeadBranch, err.BaseBranch)
+}
+
+func (err ErrPullRequestAlreadyExists) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrPullWasClosed is used close a closed pull request
+type ErrPullWasClosed struct {
+	ID    int64
+	Index int64
+}
+
+// IsErrPullWasClosed checks if an error is a ErrErrPullWasClosed.
+func IsErrPullWasClosed(err error) bool {
+	_, ok := err.(ErrPullWasClosed)
+	return ok
+}
+
+func (err ErrPullWasClosed) Error() string {
+	return fmt.Sprintf("Pull request [%d] %d was already closed", err.ID, err.Index)
+}
+
+// PullRequestType defines pull request type
+type PullRequestType int
+
+// Enumerate all the pull request types
+const (
+	PullRequestGitea PullRequestType = iota
+	PullRequestGit
+)
+
+// PullRequestStatus defines pull request status
+type PullRequestStatus int
+
+// Enumerate all the pull request status
+const (
+	PullRequestStatusConflict PullRequestStatus = iota
+	PullRequestStatusChecking
+	PullRequestStatusMergeable
+	PullRequestStatusManuallyMerged
+	PullRequestStatusError
+	PullRequestStatusEmpty
+	PullRequestStatusAncestor
+)
+
+func (status PullRequestStatus) String() string {
+	switch status {
+	case PullRequestStatusConflict:
+		return "CONFLICT"
+	case PullRequestStatusChecking:
+		return "CHECKING"
+	case PullRequestStatusMergeable:
+		return "MERGEABLE"
+	case PullRequestStatusManuallyMerged:
+		return "MANUALLY_MERGED"
+	case PullRequestStatusError:
+		return "ERROR"
+	case PullRequestStatusEmpty:
+		return "EMPTY"
+	case PullRequestStatusAncestor:
+		return "ANCESTOR"
+	default:
+		return strconv.Itoa(int(status))
+	}
+}
+
+// PullRequestFlow the flow of pull request
+type PullRequestFlow int
+
+const (
+	// PullRequestFlowGithub github flow from head branch to base branch
+	PullRequestFlowGithub PullRequestFlow = iota
+	// PullRequestFlowAGit Agit flow pull request, head branch is not exist
+	PullRequestFlowAGit
+)
+
+// PullRequest represents relation between pull request and repositories.
+type PullRequest struct {
+	ID              int64 `xorm:"pk autoincr"`
+	Type            PullRequestType
+	Status          PullRequestStatus
+	ConflictedFiles []string `xorm:"TEXT JSON"`
+	CommitsAhead    int
+	CommitsBehind   int
+
+	ChangedProtectedFiles []string `xorm:"TEXT JSON"`
+
+	IssueID                    int64  `xorm:"INDEX"`
+	Issue                      *Issue `xorm:"-"`
+	Index                      int64
+	RequestedReviewers         []*user_model.User `xorm:"-"`
+	RequestedReviewersTeams    []*org_model.Team  `xorm:"-"`
+	isRequestedReviewersLoaded bool               `xorm:"-"`
+
+	HeadRepoID          int64                  `xorm:"INDEX"`
+	HeadRepo            *repo_model.Repository `xorm:"-"`
+	BaseRepoID          int64                  `xorm:"INDEX"`
+	BaseRepo            *repo_model.Repository `xorm:"-"`
+	HeadBranch          string
+	HeadCommitID        string `xorm:"-"`
+	BaseBranch          string
+	MergeBase           string `xorm:"VARCHAR(64)"`
+	AllowMaintainerEdit bool   `xorm:"NOT NULL DEFAULT false"`
+
+	HasMerged      bool               `xorm:"INDEX"`
+	MergedCommitID string             `xorm:"VARCHAR(64)"`
+	MergerID       int64              `xorm:"INDEX"`
+	Merger         *user_model.User   `xorm:"-"`
+	MergedUnix     timeutil.TimeStamp `xorm:"updated INDEX"`
+
+	isHeadRepoLoaded bool `xorm:"-"`
+
+	Flow PullRequestFlow `xorm:"NOT NULL DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(PullRequest))
+}
+
+// DeletePullsByBaseRepoID deletes all pull requests by the base repository ID
+func DeletePullsByBaseRepoID(ctx context.Context, repoID int64) error {
+	deleteCond := builder.Select("id").From("pull_request").Where(builder.Eq{"pull_request.base_repo_id": repoID})
+
+	// Delete scheduled auto merges
+	if _, err := db.GetEngine(ctx).In("pull_id", deleteCond).
+		Delete(&pull_model.AutoMerge{}); err != nil {
+		return err
+	}
+
+	// Delete review states
+	if _, err := db.GetEngine(ctx).In("pull_id", deleteCond).
+		Delete(&pull_model.ReviewState{}); err != nil {
+		return err
+	}
+
+	_, err := db.DeleteByBean(ctx, &PullRequest{BaseRepoID: repoID})
+	return err
+}
+
+func (pr *PullRequest) String() string {
+	if pr == nil {
+		return "<PullRequest nil>"
+	}
+
+	s := new(strings.Builder)
+	fmt.Fprintf(s, "<PullRequest [%d]", pr.ID)
+	if pr.BaseRepo != nil {
+		fmt.Fprintf(s, "%s#%d[%s...", pr.BaseRepo.FullName(), pr.Index, pr.BaseBranch)
+	} else {
+		fmt.Fprintf(s, "Repo[%d]#%d[%s...", pr.BaseRepoID, pr.Index, pr.BaseBranch)
+	}
+	if pr.HeadRepoID == pr.BaseRepoID {
+		fmt.Fprintf(s, "%s]", pr.HeadBranch)
+	} else if pr.HeadRepo != nil {
+		fmt.Fprintf(s, "%s:%s]", pr.HeadRepo.FullName(), pr.HeadBranch)
+	} else {
+		fmt.Fprintf(s, "Repo[%d]:%s]", pr.HeadRepoID, pr.HeadBranch)
+	}
+	s.WriteByte('>')
+	return s.String()
+}
+
+// MustHeadUserName returns the HeadRepo's username if failed return blank
+func (pr *PullRequest) MustHeadUserName(ctx context.Context) string {
+	if err := pr.LoadHeadRepo(ctx); err != nil {
+		if !repo_model.IsErrRepoNotExist(err) {
+			log.Error("LoadHeadRepo: %v", err)
+		} else {
+			log.Warn("LoadHeadRepo %d but repository does not exist: %v", pr.HeadRepoID, err)
+		}
+		return ""
+	}
+	if pr.HeadRepo == nil {
+		return ""
+	}
+	return pr.HeadRepo.OwnerName
+}
+
+// LoadAttributes loads pull request attributes from database
+// Note: don't try to get Issue because will end up recursive querying.
+func (pr *PullRequest) LoadAttributes(ctx context.Context) (err error) {
+	if pr.HasMerged && pr.Merger == nil {
+		pr.Merger, err = user_model.GetUserByID(ctx, pr.MergerID)
+		if user_model.IsErrUserNotExist(err) {
+			pr.MergerID = user_model.GhostUserID
+			pr.Merger = user_model.NewGhostUser()
+		} else if err != nil {
+			return fmt.Errorf("getUserByID [%d]: %w", pr.MergerID, err)
+		}
+	}
+
+	return nil
+}
+
+// LoadHeadRepo loads the head repository, pr.HeadRepo will remain nil if it does not exist
+// and thus ErrRepoNotExist will never be returned
+func (pr *PullRequest) LoadHeadRepo(ctx context.Context) (err error) {
+	if !pr.isHeadRepoLoaded && pr.HeadRepo == nil && pr.HeadRepoID > 0 {
+		if pr.HeadRepoID == pr.BaseRepoID {
+			if pr.BaseRepo != nil {
+				pr.HeadRepo = pr.BaseRepo
+				return nil
+			} else if pr.Issue != nil && pr.Issue.Repo != nil {
+				pr.HeadRepo = pr.Issue.Repo
+				return nil
+			}
+		}
+
+		pr.HeadRepo, err = repo_model.GetRepositoryByID(ctx, pr.HeadRepoID)
+		if err != nil && !repo_model.IsErrRepoNotExist(err) { // Head repo maybe deleted, but it should still work
+			return fmt.Errorf("pr[%d].LoadHeadRepo[%d]: %w", pr.ID, pr.HeadRepoID, err)
+		}
+		pr.isHeadRepoLoaded = true
+	}
+	return nil
+}
+
+// LoadRequestedReviewers loads the requested reviewers.
+func (pr *PullRequest) LoadRequestedReviewers(ctx context.Context) error {
+	if pr.isRequestedReviewersLoaded || len(pr.RequestedReviewers) > 0 {
+		return nil
+	}
+
+	reviews, err := GetReviewsByIssueID(ctx, pr.Issue.ID)
+	if err != nil {
+		return err
+	}
+	if err = reviews.LoadReviewers(ctx); err != nil {
+		return err
+	}
+	pr.isRequestedReviewersLoaded = true
+	for _, review := range reviews {
+		if review.ReviewerID != 0 {
+			pr.RequestedReviewers = append(pr.RequestedReviewers, review.Reviewer)
+		}
+	}
+
+	return nil
+}
+
+// LoadRequestedReviewersTeams loads the requested reviewers teams.
+func (pr *PullRequest) LoadRequestedReviewersTeams(ctx context.Context) error {
+	reviews, err := GetReviewsByIssueID(ctx, pr.Issue.ID)
+	if err != nil {
+		return err
+	}
+	if err = reviews.LoadReviewersTeams(ctx); err != nil {
+		return err
+	}
+
+	for _, review := range reviews {
+		if review.ReviewerTeamID != 0 {
+			pr.RequestedReviewersTeams = append(pr.RequestedReviewersTeams, review.ReviewerTeam)
+		}
+	}
+
+	return nil
+}
+
+// LoadBaseRepo loads the target repository. ErrRepoNotExist may be returned.
+func (pr *PullRequest) LoadBaseRepo(ctx context.Context) (err error) {
+	if pr.BaseRepo != nil {
+		return nil
+	}
+
+	if pr.HeadRepoID == pr.BaseRepoID && pr.HeadRepo != nil {
+		pr.BaseRepo = pr.HeadRepo
+		return nil
+	}
+
+	if pr.Issue != nil && pr.Issue.Repo != nil {
+		pr.BaseRepo = pr.Issue.Repo
+		return nil
+	}
+
+	pr.BaseRepo, err = repo_model.GetRepositoryByID(ctx, pr.BaseRepoID)
+	if err != nil {
+		return fmt.Errorf("pr[%d].LoadBaseRepo[%d]: %w", pr.ID, pr.BaseRepoID, err)
+	}
+	return nil
+}
+
+// LoadIssue loads issue information from database
+func (pr *PullRequest) LoadIssue(ctx context.Context) (err error) {
+	if pr.Issue != nil {
+		return nil
+	}
+
+	pr.Issue, err = GetIssueByID(ctx, pr.IssueID)
+	if err == nil {
+		pr.Issue.PullRequest = pr
+	}
+	return err
+}
+
+// ReviewCount represents a count of Reviews
+type ReviewCount struct {
+	IssueID int64
+	Type    ReviewType
+	Count   int64
+}
+
+// GetApprovalCounts returns the approval counts by type
+// FIXME: Only returns official counts due to double counting of non-official counts
+func (pr *PullRequest) GetApprovalCounts(ctx context.Context) ([]*ReviewCount, error) {
+	rCounts := make([]*ReviewCount, 0, 6)
+	sess := db.GetEngine(ctx).Where("issue_id = ?", pr.IssueID)
+	return rCounts, sess.Select("issue_id, type, count(id) as `count`").Where("official = ? AND dismissed = ?", true, false).GroupBy("issue_id, type").Table("review").Find(&rCounts)
+}
+
+// GetApprovers returns the approvers of the pull request
+func (pr *PullRequest) GetApprovers(ctx context.Context) string {
+	stringBuilder := strings.Builder{}
+	if err := pr.getReviewedByLines(ctx, &stringBuilder); err != nil {
+		log.Error("Unable to getReviewedByLines: Error: %v", err)
+		return ""
+	}
+
+	return stringBuilder.String()
+}
+
+func (pr *PullRequest) getReviewedByLines(ctx context.Context, writer io.Writer) error {
+	maxReviewers := setting.Repository.PullRequest.DefaultMergeMessageMaxApprovers
+
+	if maxReviewers == 0 {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Note: This doesn't page as we only expect a very limited number of reviews
+	reviews, err := FindLatestReviews(ctx, FindReviewOptions{
+		Types:        []ReviewType{ReviewTypeApprove},
+		IssueID:      pr.IssueID,
+		OfficialOnly: setting.Repository.PullRequest.DefaultMergeMessageOfficialApproversOnly,
+	})
+	if err != nil {
+		log.Error("Unable to FindReviews for PR ID %d: %v", pr.ID, err)
+		return err
+	}
+
+	reviewersWritten := 0
+
+	for _, review := range reviews {
+		if maxReviewers > 0 && reviewersWritten > maxReviewers {
+			break
+		}
+
+		if err := review.LoadReviewer(ctx); err != nil && !user_model.IsErrUserNotExist(err) {
+			log.Error("Unable to LoadReviewer[%d] for PR ID %d : %v", review.ReviewerID, pr.ID, err)
+			return err
+		} else if review.Reviewer == nil {
+			continue
+		}
+		if _, err := writer.Write([]byte("Reviewed-by: ")); err != nil {
+			return err
+		}
+		if _, err := writer.Write([]byte(review.Reviewer.NewGitSig().String())); err != nil {
+			return err
+		}
+		if _, err := writer.Write([]byte{'\n'}); err != nil {
+			return err
+		}
+		reviewersWritten++
+	}
+	return committer.Commit()
+}
+
+// GetGitRefName returns git ref for hidden pull request branch
+func (pr *PullRequest) GetGitRefName() string {
+	return fmt.Sprintf("%s%d/head", git.PullPrefix, pr.Index)
+}
+
+func (pr *PullRequest) GetGitHeadBranchRefName() string {
+	return fmt.Sprintf("%s%s", git.BranchPrefix, pr.HeadBranch)
+}
+
+// GetReviewCommentsCount returns the number of review comments made on the diff of a PR review (not including comments on commits or issues in a PR)
+func (pr *PullRequest) GetReviewCommentsCount(ctx context.Context) int {
+	opts := FindCommentsOptions{
+		Type:    CommentTypeReview,
+		IssueID: pr.IssueID,
+	}
+	conds := opts.ToConds()
+
+	count, err := db.GetEngine(ctx).Where(conds).Count(new(Comment))
+	if err != nil {
+		return 0
+	}
+	return int(count)
+}
+
+// IsChecking returns true if this pull request is still checking conflict.
+func (pr *PullRequest) IsChecking() bool {
+	return pr.Status == PullRequestStatusChecking
+}
+
+// CanAutoMerge returns true if this pull request can be merged automatically.
+func (pr *PullRequest) CanAutoMerge() bool {
+	return pr.Status == PullRequestStatusMergeable
+}
+
+// IsEmpty returns true if this pull request is empty.
+func (pr *PullRequest) IsEmpty() bool {
+	return pr.Status == PullRequestStatusEmpty
+}
+
+// IsAncestor returns true if the Head Commit of this PR is an ancestor of the Base Commit
+func (pr *PullRequest) IsAncestor() bool {
+	return pr.Status == PullRequestStatusAncestor
+}
+
+// IsFromFork return true if this PR is from a fork.
+func (pr *PullRequest) IsFromFork() bool {
+	return pr.HeadRepoID != pr.BaseRepoID
+}
+
+// SetMerged sets a pull request to merged and closes the corresponding issue
+func (pr *PullRequest) SetMerged(ctx context.Context) (bool, error) {
+	if pr.HasMerged {
+		return false, fmt.Errorf("PullRequest[%d] already merged", pr.Index)
+	}
+	if pr.MergedCommitID == "" || pr.MergedUnix == 0 || pr.Merger == nil {
+		return false, fmt.Errorf("Unable to merge PullRequest[%d], some required fields are empty", pr.Index)
+	}
+
+	pr.HasMerged = true
+	sess := db.GetEngine(ctx)
+
+	if _, err := sess.Exec("UPDATE `issue` SET `repo_id` = `repo_id` WHERE `id` = ?", pr.IssueID); err != nil {
+		return false, err
+	}
+
+	if _, err := sess.Exec("UPDATE `pull_request` SET `issue_id` = `issue_id` WHERE `id` = ?", pr.ID); err != nil {
+		return false, err
+	}
+
+	pr.Issue = nil
+	if err := pr.LoadIssue(ctx); err != nil {
+		return false, err
+	}
+
+	if tmpPr, err := GetPullRequestByID(ctx, pr.ID); err != nil {
+		return false, err
+	} else if tmpPr.HasMerged {
+		if pr.Issue.IsClosed {
+			return false, nil
+		}
+		return false, fmt.Errorf("PullRequest[%d] already merged but it's associated issue [%d] is not closed", pr.Index, pr.IssueID)
+	} else if pr.Issue.IsClosed {
+		return false, fmt.Errorf("PullRequest[%d] already closed", pr.Index)
+	}
+
+	if err := pr.Issue.LoadRepo(ctx); err != nil {
+		return false, err
+	}
+
+	if err := pr.Issue.Repo.LoadOwner(ctx); err != nil {
+		return false, err
+	}
+
+	if _, err := changeIssueStatus(ctx, pr.Issue, pr.Merger, true, true); err != nil {
+		return false, fmt.Errorf("Issue.changeStatus: %w", err)
+	}
+
+	// reset the conflicted files as there cannot be any if we're merged
+	pr.ConflictedFiles = []string{}
+
+	// We need to save all of the data used to compute this merge as it may have already been changed by TestPatch. FIXME: need to set some state to prevent TestPatch from running whilst we are merging.
+	if _, err := sess.Where("id = ?", pr.ID).Cols("has_merged, status, merge_base, merged_commit_id, merger_id, merged_unix, conflicted_files").Update(pr); err != nil {
+		return false, fmt.Errorf("Failed to update pr[%d]: %w", pr.ID, err)
+	}
+
+	return true, nil
+}
+
+// NewPullRequest creates new pull request with labels for repository.
+func NewPullRequest(ctx context.Context, repo *repo_model.Repository, issue *Issue, labelIDs []int64, uuids []string, pr *PullRequest) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	idx, err := db.GetNextResourceIndex(ctx, "issue_index", repo.ID)
+	if err != nil {
+		return fmt.Errorf("generate pull request index failed: %w", err)
+	}
+
+	issue.Index = idx
+
+	if err = NewIssueWithIndex(ctx, issue.Poster, NewIssueOptions{
+		Repo:        repo,
+		Issue:       issue,
+		LabelIDs:    labelIDs,
+		Attachments: uuids,
+		IsPull:      true,
+	}); err != nil {
+		if repo_model.IsErrUserDoesNotHaveAccessToRepo(err) || IsErrNewIssueInsert(err) {
+			return err
+		}
+		return fmt.Errorf("newIssue: %w", err)
+	}
+
+	pr.Index = issue.Index
+	pr.BaseRepo = repo
+	pr.IssueID = issue.ID
+	if err = db.Insert(ctx, pr); err != nil {
+		return fmt.Errorf("insert pull repo: %w", err)
+	}
+
+	if err = committer.Commit(); err != nil {
+		return fmt.Errorf("Commit: %w", err)
+	}
+
+	return nil
+}
+
+// GetUnmergedPullRequest returns a pull request that is open and has not been merged
+// by given head/base and repo/branch.
+func GetUnmergedPullRequest(ctx context.Context, headRepoID, baseRepoID int64, headBranch, baseBranch string, flow PullRequestFlow) (*PullRequest, error) {
+	pr := new(PullRequest)
+	has, err := db.GetEngine(ctx).
+		Where("head_repo_id=? AND head_branch=? AND base_repo_id=? AND base_branch=? AND has_merged=? AND flow = ? AND issue.is_closed=?",
+			headRepoID, headBranch, baseRepoID, baseBranch, false, flow, false).
+		Join("INNER", "issue", "issue.id=pull_request.issue_id").
+		Get(pr)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrPullRequestNotExist{0, 0, headRepoID, baseRepoID, headBranch, baseBranch}
+	}
+
+	return pr, nil
+}
+
+// GetLatestPullRequestByHeadInfo returns the latest pull request (regardless of its status)
+// by given head information (repo and branch).
+func GetLatestPullRequestByHeadInfo(ctx context.Context, repoID int64, branch string) (*PullRequest, error) {
+	pr := new(PullRequest)
+	has, err := db.GetEngine(ctx).
+		Where("head_repo_id = ? AND head_branch = ? AND flow = ?", repoID, branch, PullRequestFlowGithub).
+		OrderBy("id DESC").
+		Get(pr)
+	if !has {
+		return nil, err
+	}
+	return pr, err
+}
+
+// GetPullRequestByIndex returns a pull request by the given index
+func GetPullRequestByIndex(ctx context.Context, repoID, index int64) (*PullRequest, error) {
+	if index < 1 {
+		return nil, ErrPullRequestNotExist{}
+	}
+	pr := &PullRequest{
+		BaseRepoID: repoID,
+		Index:      index,
+	}
+
+	has, err := db.GetEngine(ctx).Get(pr)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrPullRequestNotExist{0, 0, 0, repoID, "", ""}
+	}
+
+	if err = pr.LoadAttributes(ctx); err != nil {
+		return nil, err
+	}
+	if err = pr.LoadIssue(ctx); err != nil {
+		return nil, err
+	}
+
+	return pr, nil
+}
+
+// GetPullRequestByID returns a pull request by given ID.
+func GetPullRequestByID(ctx context.Context, id int64) (*PullRequest, error) {
+	pr := new(PullRequest)
+	has, err := db.GetEngine(ctx).ID(id).Get(pr)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrPullRequestNotExist{id, 0, 0, 0, "", ""}
+	}
+	return pr, pr.LoadAttributes(ctx)
+}
+
+// GetPullRequestByIssueIDWithNoAttributes returns pull request with no attributes loaded by given issue ID.
+func GetPullRequestByIssueIDWithNoAttributes(ctx context.Context, issueID int64) (*PullRequest, error) {
+	var pr PullRequest
+	has, err := db.GetEngine(ctx).Where("issue_id = ?", issueID).Get(&pr)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPullRequestNotExist{0, issueID, 0, 0, "", ""}
+	}
+	return &pr, nil
+}
+
+// GetPullRequestByIssueID returns pull request by given issue ID.
+func GetPullRequestByIssueID(ctx context.Context, issueID int64) (*PullRequest, error) {
+	pr, exist, err := db.Get[PullRequest](ctx, builder.Eq{"issue_id": issueID})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrPullRequestNotExist{0, issueID, 0, 0, "", ""}
+	}
+	return pr, pr.LoadAttributes(ctx)
+}
+
+// GetPullRequestsByBaseHeadInfo returns the pull request by given base and head
+func GetPullRequestByBaseHeadInfo(ctx context.Context, baseID, headID int64, base, head string) (*PullRequest, error) {
+	pr := &PullRequest{}
+	sess := db.GetEngine(ctx).
+		Join("INNER", "issue", "issue.id = pull_request.issue_id").
+		Where("base_repo_id = ? AND base_branch = ? AND head_repo_id = ? AND head_branch = ?", baseID, base, headID, head)
+	has, err := sess.Get(pr)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPullRequestNotExist{
+			HeadRepoID: headID,
+			BaseRepoID: baseID,
+			HeadBranch: head,
+			BaseBranch: base,
+		}
+	}
+
+	if err = pr.LoadAttributes(ctx); err != nil {
+		return nil, err
+	}
+	if err = pr.LoadIssue(ctx); err != nil {
+		return nil, err
+	}
+
+	return pr, nil
+}
+
+// GetAllUnmergedAgitPullRequestByPoster get all unmerged agit flow pull request
+// By poster id.
+func GetAllUnmergedAgitPullRequestByPoster(ctx context.Context, uid int64) ([]*PullRequest, error) {
+	pulls := make([]*PullRequest, 0, 10)
+
+	err := db.GetEngine(ctx).
+		Where("has_merged=? AND flow = ? AND issue.is_closed=? AND issue.poster_id=?",
+			false, PullRequestFlowAGit, false, uid).
+		Join("INNER", "issue", "issue.id=pull_request.issue_id").
+		Find(&pulls)
+
+	return pulls, err
+}
+
+// Update updates all fields of pull request.
+func (pr *PullRequest) Update(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).ID(pr.ID).AllCols().Update(pr)
+	return err
+}
+
+// UpdateCols updates specific fields of pull request.
+func (pr *PullRequest) UpdateCols(ctx context.Context, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(pr.ID).Cols(cols...).Update(pr)
+	return err
+}
+
+// UpdateColsIfNotMerged updates specific fields of a pull request if it has not been merged
+func (pr *PullRequest) UpdateColsIfNotMerged(ctx context.Context, cols ...string) error {
+	_, err := db.GetEngine(ctx).Where("id = ? AND has_merged = ?", pr.ID, false).Cols(cols...).Update(pr)
+	return err
+}
+
+// IsWorkInProgress determine if the Pull Request is a Work In Progress by its title
+// Issue must be set before this method can be called.
+func (pr *PullRequest) IsWorkInProgress(ctx context.Context) bool {
+	if err := pr.LoadIssue(ctx); err != nil {
+		log.Error("LoadIssue: %v", err)
+		return false
+	}
+	return HasWorkInProgressPrefix(pr.Issue.Title)
+}
+
+// HasWorkInProgressPrefix determines if the given PR title has a Work In Progress prefix
+func HasWorkInProgressPrefix(title string) bool {
+	for _, prefix := range setting.Repository.PullRequest.WorkInProgressPrefixes {
+		if strings.HasPrefix(strings.ToUpper(title), strings.ToUpper(prefix)) {
+			return true
+		}
+	}
+	return false
+}
+
+// IsFilesConflicted determines if the  Pull Request has changes conflicting with the target branch.
+func (pr *PullRequest) IsFilesConflicted() bool {
+	return len(pr.ConflictedFiles) > 0
+}
+
+// GetWorkInProgressPrefix returns the prefix used to mark the pull request as a work in progress.
+// It returns an empty string when none were found
+func (pr *PullRequest) GetWorkInProgressPrefix(ctx context.Context) string {
+	if err := pr.LoadIssue(ctx); err != nil {
+		log.Error("LoadIssue: %v", err)
+		return ""
+	}
+
+	for _, prefix := range setting.Repository.PullRequest.WorkInProgressPrefixes {
+		if strings.HasPrefix(strings.ToUpper(pr.Issue.Title), strings.ToUpper(prefix)) {
+			return pr.Issue.Title[0:len(prefix)]
+		}
+	}
+	return ""
+}
+
+// UpdateCommitDivergence update Divergence of a pull request
+func (pr *PullRequest) UpdateCommitDivergence(ctx context.Context, ahead, behind int) error {
+	if pr.ID == 0 {
+		return fmt.Errorf("pull ID is 0")
+	}
+	pr.CommitsAhead = ahead
+	pr.CommitsBehind = behind
+	_, err := db.GetEngine(ctx).ID(pr.ID).Cols("commits_ahead", "commits_behind").Update(pr)
+	return err
+}
+
+// IsSameRepo returns true if base repo and head repo is the same
+func (pr *PullRequest) IsSameRepo() bool {
+	return pr.BaseRepoID == pr.HeadRepoID
+}
+
+// GetBaseBranchLink returns the relative URL of the base branch
+func (pr *PullRequest) GetBaseBranchLink(ctx context.Context) string {
+	if err := pr.LoadBaseRepo(ctx); err != nil {
+		log.Error("LoadBaseRepo: %v", err)
+		return ""
+	}
+	if pr.BaseRepo == nil {
+		return ""
+	}
+	return pr.BaseRepo.Link() + "/src/branch/" + util.PathEscapeSegments(pr.BaseBranch)
+}
+
+// GetHeadBranchLink returns the relative URL of the head branch
+func (pr *PullRequest) GetHeadBranchLink(ctx context.Context) string {
+	if pr.Flow == PullRequestFlowAGit {
+		return ""
+	}
+
+	if err := pr.LoadHeadRepo(ctx); err != nil {
+		log.Error("LoadHeadRepo: %v", err)
+		return ""
+	}
+	if pr.HeadRepo == nil {
+		return ""
+	}
+	return pr.HeadRepo.Link() + "/src/branch/" + util.PathEscapeSegments(pr.HeadBranch)
+}
+
+// UpdateAllowEdits update if PR can be edited from maintainers
+func UpdateAllowEdits(ctx context.Context, pr *PullRequest) error {
+	if _, err := db.GetEngine(ctx).ID(pr.ID).Cols("allow_maintainer_edit").Update(pr); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Mergeable returns if the pullrequest is mergeable.
+func (pr *PullRequest) Mergeable(ctx context.Context) bool {
+	// If a pull request isn't mergeable if it's:
+	// - Being conflict checked.
+	// - Has a conflict.
+	// - Received a error while being conflict checked.
+	// - Is a work-in-progress pull request.
+	return pr.Status != PullRequestStatusChecking && pr.Status != PullRequestStatusConflict &&
+		pr.Status != PullRequestStatusError && !pr.IsWorkInProgress(ctx)
+}
+
+// HasEnoughApprovals returns true if pr has enough granted approvals.
+func HasEnoughApprovals(ctx context.Context, protectBranch *git_model.ProtectedBranch, pr *PullRequest) bool {
+	if protectBranch.RequiredApprovals == 0 {
+		return true
+	}
+	return GetGrantedApprovalsCount(ctx, protectBranch, pr) >= protectBranch.RequiredApprovals
+}
+
+// GetGrantedApprovalsCount returns the number of granted approvals for pr. A granted approval must be authored by a user in an approval whitelist.
+func GetGrantedApprovalsCount(ctx context.Context, protectBranch *git_model.ProtectedBranch, pr *PullRequest) int64 {
+	sess := db.GetEngine(ctx).Where("issue_id = ?", pr.IssueID).
+		And("type = ?", ReviewTypeApprove).
+		And("official = ?", true).
+		And("dismissed = ?", false)
+	if protectBranch.IgnoreStaleApprovals {
+		sess = sess.And("stale = ?", false)
+	}
+	approvals, err := sess.Count(new(Review))
+	if err != nil {
+		log.Error("GetGrantedApprovalsCount: %v", err)
+		return 0
+	}
+
+	return approvals
+}
+
+// MergeBlockedByRejectedReview returns true if merge is blocked by rejected reviews
+func MergeBlockedByRejectedReview(ctx context.Context, protectBranch *git_model.ProtectedBranch, pr *PullRequest) bool {
+	if !protectBranch.BlockOnRejectedReviews {
+		return false
+	}
+	rejectExist, err := db.GetEngine(ctx).Where("issue_id = ?", pr.IssueID).
+		And("type = ?", ReviewTypeReject).
+		And("official = ?", true).
+		And("dismissed = ?", false).
+		Exist(new(Review))
+	if err != nil {
+		log.Error("MergeBlockedByRejectedReview: %v", err)
+		return true
+	}
+
+	return rejectExist
+}
+
+// MergeBlockedByOfficialReviewRequests block merge because of some review request to official reviewer
+// of from official review
+func MergeBlockedByOfficialReviewRequests(ctx context.Context, protectBranch *git_model.ProtectedBranch, pr *PullRequest) bool {
+	if !protectBranch.BlockOnOfficialReviewRequests {
+		return false
+	}
+	has, err := db.GetEngine(ctx).Where("issue_id = ?", pr.IssueID).
+		And("type = ?", ReviewTypeRequest).
+		And("official = ?", true).
+		Exist(new(Review))
+	if err != nil {
+		log.Error("MergeBlockedByOfficialReviewRequests: %v", err)
+		return true
+	}
+
+	return has
+}
+
+// MergeBlockedByOutdatedBranch returns true if merge is blocked by an outdated head branch
+func MergeBlockedByOutdatedBranch(protectBranch *git_model.ProtectedBranch, pr *PullRequest) bool {
+	return protectBranch.BlockOnOutdatedBranch && pr.CommitsBehind > 0
+}
+
+// GetCodeOwnersFromContent returns the code owners configuration
+// Return empty slice if files missing
+// Return warning messages on parsing errors
+// We're trying to do the best we can when parsing a file.
+// Invalid lines are skipped. Non-existent users and teams too.
+func GetCodeOwnersFromContent(ctx context.Context, data string) ([]*CodeOwnerRule, []string) {
+	if len(data) == 0 {
+		return nil, nil
+	}
+
+	rules := make([]*CodeOwnerRule, 0)
+	lines := strings.Split(data, "\n")
+	warnings := make([]string, 0)
+
+	for i, line := range lines {
+		tokens := TokenizeCodeOwnersLine(line)
+		if len(tokens) == 0 {
+			continue
+		} else if len(tokens) < 2 {
+			warnings = append(warnings, fmt.Sprintf("Line: %d: incorrect format", i+1))
+			continue
+		}
+		rule, wr := ParseCodeOwnersLine(ctx, tokens)
+		for _, w := range wr {
+			warnings = append(warnings, fmt.Sprintf("Line: %d: %s", i+1, w))
+		}
+		if rule == nil {
+			continue
+		}
+
+		rules = append(rules, rule)
+	}
+
+	return rules, warnings
+}
+
+type CodeOwnerRule struct {
+	Rule     *regexp.Regexp
+	Negative bool
+	Users    []*user_model.User
+	Teams    []*org_model.Team
+}
+
+func ParseCodeOwnersLine(ctx context.Context, tokens []string) (*CodeOwnerRule, []string) {
+	var err error
+	rule := &CodeOwnerRule{
+		Users:    make([]*user_model.User, 0),
+		Teams:    make([]*org_model.Team, 0),
+		Negative: strings.HasPrefix(tokens[0], "!"),
+	}
+
+	warnings := make([]string, 0)
+
+	rule.Rule, err = regexp.Compile(fmt.Sprintf("^%s$", strings.TrimPrefix(tokens[0], "!")))
+	if err != nil {
+		warnings = append(warnings, fmt.Sprintf("incorrect codeowner regexp: %s", err))
+		return nil, warnings
+	}
+
+	for _, user := range tokens[1:] {
+		user = strings.TrimPrefix(user, "@")
+
+		// Only @org/team can contain slashes
+		if strings.Contains(user, "/") {
+			s := strings.Split(user, "/")
+			if len(s) != 2 {
+				warnings = append(warnings, fmt.Sprintf("incorrect codeowner group: %s", user))
+				continue
+			}
+			orgName := s[0]
+			teamName := s[1]
+
+			org, err := org_model.GetOrgByName(ctx, orgName)
+			if err != nil {
+				warnings = append(warnings, fmt.Sprintf("incorrect codeowner organization: %s", user))
+				continue
+			}
+			teams, err := org.LoadTeams(ctx)
+			if err != nil {
+				warnings = append(warnings, fmt.Sprintf("incorrect codeowner team: %s", user))
+				continue
+			}
+
+			for _, team := range teams {
+				if team.Name == teamName {
+					rule.Teams = append(rule.Teams, team)
+				}
+			}
+		} else {
+			u, err := user_model.GetUserByName(ctx, user)
+			if err != nil {
+				warnings = append(warnings, fmt.Sprintf("incorrect codeowner user: %s", user))
+				continue
+			}
+			rule.Users = append(rule.Users, u)
+		}
+	}
+
+	if (len(rule.Users) == 0) && (len(rule.Teams) == 0) {
+		warnings = append(warnings, "no users/groups matched")
+		return nil, warnings
+	}
+
+	return rule, warnings
+}
+
+func TokenizeCodeOwnersLine(line string) []string {
+	if len(line) == 0 {
+		return nil
+	}
+
+	line = strings.TrimSpace(line)
+	line = strings.ReplaceAll(line, "\t", " ")
+
+	tokens := make([]string, 0)
+
+	escape := false
+	token := ""
+	for _, char := range line {
+		if escape {
+			token += string(char)
+			escape = false
+		} else if string(char) == "\\" {
+			escape = true
+		} else if string(char) == "#" {
+			break
+		} else if string(char) == " " {
+			if len(token) > 0 {
+				tokens = append(tokens, token)
+				token = ""
+			}
+		} else {
+			token += string(char)
+		}
+	}
+
+	if len(token) > 0 {
+		tokens = append(tokens, token)
+	}
+
+	return tokens
+}
+
+// InsertPullRequests inserted pull requests
+func InsertPullRequests(ctx context.Context, prs ...*PullRequest) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+	for _, pr := range prs {
+		if err := insertIssue(ctx, pr.Issue); err != nil {
+			return err
+		}
+		pr.IssueID = pr.Issue.ID
+		if _, err := sess.NoAutoTime().Insert(pr); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
+
+// GetPullRequestByMergedCommit returns a merged pull request by the given commit
+func GetPullRequestByMergedCommit(ctx context.Context, repoID int64, sha string) (*PullRequest, error) {
+	pr := new(PullRequest)
+	has, err := db.GetEngine(ctx).Where("base_repo_id = ? AND merged_commit_id = ?", repoID, sha).Get(pr)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrPullRequestNotExist{0, 0, 0, repoID, "", ""}
+	}
+
+	if err = pr.LoadAttributes(ctx); err != nil {
+		return nil, err
+	}
+	if err = pr.LoadIssue(ctx); err != nil {
+		return nil, err
+	}
+
+	return pr, nil
+}
diff --git a/models/issues/pull_list.go b/models/issues/pull_list.go
new file mode 100644
index 0000000..f3970fa
--- /dev/null
+++ b/models/issues/pull_list.go
@@ -0,0 +1,264 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+)
+
+// PullRequestsOptions holds the options for PRs
+type PullRequestsOptions struct {
+	db.ListOptions
+	State       string
+	SortType    string
+	Labels      []int64
+	MilestoneID int64
+}
+
+func listPullRequestStatement(ctx context.Context, baseRepoID int64, opts *PullRequestsOptions) *xorm.Session {
+	sess := db.GetEngine(ctx).Where("pull_request.base_repo_id=?", baseRepoID)
+
+	sess.Join("INNER", "issue", "pull_request.issue_id = issue.id")
+	switch opts.State {
+	case "closed", "open":
+		sess.And("issue.is_closed=?", opts.State == "closed")
+	}
+
+	if len(opts.Labels) > 0 {
+		sess.Join("INNER", "issue_label", "issue.id = issue_label.issue_id").
+			In("issue_label.label_id", opts.Labels)
+	}
+
+	if opts.MilestoneID > 0 {
+		sess.And("issue.milestone_id=?", opts.MilestoneID)
+	}
+
+	return sess
+}
+
+func GetUnmergedPullRequestsByHeadInfoMax(ctx context.Context, repoID, olderThan int64, branch string) ([]*PullRequest, error) {
+	prs := make([]*PullRequest, 0, 2)
+	sess := db.GetEngine(ctx).
+		Join("INNER", "issue", "issue.id = `pull_request`.issue_id").
+		Where("`pull_request`.head_repo_id = ? AND `pull_request`.head_branch = ? AND `pull_request`.has_merged = ? AND `issue`.is_closed = ? AND `pull_request`.flow = ? AND (`issue`.`created` IS NULL OR `issue`.`created` <= ?)", repoID, branch, false, false, PullRequestFlowGithub, olderThan)
+	return prs, sess.Find(&prs)
+}
+
+// GetUnmergedPullRequestsByHeadInfo returns all pull requests that are open and has not been merged
+func GetUnmergedPullRequestsByHeadInfo(ctx context.Context, repoID int64, branch string) ([]*PullRequest, error) {
+	prs := make([]*PullRequest, 0, 2)
+	sess := db.GetEngine(ctx).
+		Join("INNER", "issue", "issue.id = pull_request.issue_id").
+		Where("head_repo_id = ? AND head_branch = ? AND has_merged = ? AND issue.is_closed = ? AND flow = ?", repoID, branch, false, false, PullRequestFlowGithub)
+	return prs, sess.Find(&prs)
+}
+
+// CanMaintainerWriteToBranch check whether user is a maintainer and could write to the branch
+func CanMaintainerWriteToBranch(ctx context.Context, p access_model.Permission, branch string, user *user_model.User) bool {
+	if p.CanWrite(unit.TypeCode) {
+		return true
+	}
+
+	if len(p.Units) < 1 {
+		return false
+	}
+
+	prs, err := GetUnmergedPullRequestsByHeadInfo(ctx, p.Units[0].RepoID, branch)
+	if err != nil {
+		return false
+	}
+
+	for _, pr := range prs {
+		if pr.AllowMaintainerEdit {
+			err = pr.LoadBaseRepo(ctx)
+			if err != nil {
+				continue
+			}
+			prPerm, err := access_model.GetUserRepoPermission(ctx, pr.BaseRepo, user)
+			if err != nil {
+				continue
+			}
+			if prPerm.CanWrite(unit.TypeCode) {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+// HasUnmergedPullRequestsByHeadInfo checks if there are open and not merged pull request
+// by given head information (repo and branch)
+func HasUnmergedPullRequestsByHeadInfo(ctx context.Context, repoID int64, branch string) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("head_repo_id = ? AND head_branch = ? AND has_merged = ? AND issue.is_closed = ? AND flow = ?",
+			repoID, branch, false, false, PullRequestFlowGithub).
+		Join("INNER", "issue", "issue.id = pull_request.issue_id").
+		Exist(&PullRequest{})
+}
+
+// GetUnmergedPullRequestsByBaseInfo returns all pull requests that are open and has not been merged
+// by given base information (repo and branch).
+func GetUnmergedPullRequestsByBaseInfo(ctx context.Context, repoID int64, branch string) ([]*PullRequest, error) {
+	prs := make([]*PullRequest, 0, 2)
+	return prs, db.GetEngine(ctx).
+		Where("base_repo_id=? AND base_branch=? AND has_merged=? AND issue.is_closed=?",
+			repoID, branch, false, false).
+		OrderBy("issue.updated_unix DESC").
+		Join("INNER", "issue", "issue.id=pull_request.issue_id").
+		Find(&prs)
+}
+
+// GetPullRequestIDsByCheckStatus returns all pull requests according the special checking status.
+func GetPullRequestIDsByCheckStatus(ctx context.Context, status PullRequestStatus) ([]int64, error) {
+	prs := make([]int64, 0, 10)
+	return prs, db.GetEngine(ctx).Table("pull_request").
+		Where("status=?", status).
+		Cols("pull_request.id").
+		Find(&prs)
+}
+
+// PullRequests returns all pull requests for a base Repo by the given conditions
+func PullRequests(ctx context.Context, baseRepoID int64, opts *PullRequestsOptions) (PullRequestList, int64, error) {
+	if opts.Page <= 0 {
+		opts.Page = 1
+	}
+
+	countSession := listPullRequestStatement(ctx, baseRepoID, opts)
+	maxResults, err := countSession.Count(new(PullRequest))
+	if err != nil {
+		log.Error("Count PRs: %v", err)
+		return nil, maxResults, err
+	}
+
+	findSession := listPullRequestStatement(ctx, baseRepoID, opts)
+	applySorts(findSession, opts.SortType, 0)
+	findSession = db.SetSessionPagination(findSession, opts)
+	prs := make([]*PullRequest, 0, opts.PageSize)
+	return prs, maxResults, findSession.Find(&prs)
+}
+
+// PullRequestList defines a list of pull requests
+type PullRequestList []*PullRequest
+
+func (prs PullRequestList) getRepositoryIDs() []int64 {
+	repoIDs := make(container.Set[int64])
+	for _, pr := range prs {
+		if pr.BaseRepo == nil && pr.BaseRepoID > 0 {
+			repoIDs.Add(pr.BaseRepoID)
+		}
+		if pr.HeadRepo == nil && pr.HeadRepoID > 0 {
+			repoIDs.Add(pr.HeadRepoID)
+		}
+	}
+	return repoIDs.Values()
+}
+
+func (prs PullRequestList) LoadRepositories(ctx context.Context) error {
+	repoIDs := prs.getRepositoryIDs()
+	reposMap := make(map[int64]*repo_model.Repository, len(repoIDs))
+	if err := db.GetEngine(ctx).
+		In("id", repoIDs).
+		Find(&reposMap); err != nil {
+		return fmt.Errorf("find repos: %w", err)
+	}
+	for _, pr := range prs {
+		if pr.BaseRepo == nil {
+			pr.BaseRepo = reposMap[pr.BaseRepoID]
+		}
+		if pr.HeadRepo == nil {
+			pr.HeadRepo = reposMap[pr.HeadRepoID]
+			pr.isHeadRepoLoaded = true
+		}
+	}
+	return nil
+}
+
+func (prs PullRequestList) LoadAttributes(ctx context.Context) error {
+	if _, err := prs.LoadIssues(ctx); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (prs PullRequestList) LoadIssues(ctx context.Context) (IssueList, error) {
+	if len(prs) == 0 {
+		return nil, nil
+	}
+
+	// Load issues which are not loaded
+	issueIDs := container.FilterSlice(prs, func(pr *PullRequest) (int64, bool) {
+		return pr.IssueID, pr.Issue == nil && pr.IssueID > 0
+	})
+	issues := make(map[int64]*Issue, len(issueIDs))
+	if err := db.GetEngine(ctx).
+		In("id", issueIDs).
+		Find(&issues); err != nil {
+		return nil, fmt.Errorf("find issues: %w", err)
+	}
+
+	issueList := make(IssueList, 0, len(prs))
+	for _, pr := range prs {
+		if pr.Issue == nil {
+			pr.Issue = issues[pr.IssueID]
+			/*
+				Old code:
+				pr.Issue.PullRequest = pr // panic here means issueIDs and prs are not in sync
+
+				It's worth panic because it's almost impossible to happen under normal use.
+				But in integration testing, an asynchronous task could read a database that has been reset.
+				So returning an error would make more sense, let the caller has a choice to ignore it.
+			*/
+			if pr.Issue == nil {
+				return nil, fmt.Errorf("issues and prs may be not in sync: cannot find issue %v for pr %v: %w", pr.IssueID, pr.ID, util.ErrNotExist)
+			}
+		}
+		pr.Issue.PullRequest = pr
+		if pr.Issue.Repo == nil {
+			pr.Issue.Repo = pr.BaseRepo
+		}
+		issueList = append(issueList, pr.Issue)
+	}
+	return issueList, nil
+}
+
+// GetIssueIDs returns all issue ids
+func (prs PullRequestList) GetIssueIDs() []int64 {
+	return container.FilterSlice(prs, func(pr *PullRequest) (int64, bool) {
+		return pr.IssueID, pr.IssueID > 0
+	})
+}
+
+// HasMergedPullRequestInRepo returns whether the user(poster) has merged pull-request in the repo
+func HasMergedPullRequestInRepo(ctx context.Context, repoID, posterID int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Join("INNER", "pull_request", "pull_request.issue_id = issue.id").
+		Where("repo_id=?", repoID).
+		And("poster_id=?", posterID).
+		And("is_pull=?", true).
+		And("pull_request.has_merged=?", true).
+		Select("issue.id").
+		Limit(1).
+		Get(new(Issue))
+}
+
+// GetPullRequestByIssueIDs returns all pull requests by issue ids
+func GetPullRequestByIssueIDs(ctx context.Context, issueIDs []int64) (PullRequestList, error) {
+	prs := make([]*PullRequest, 0, len(issueIDs))
+	return prs, db.GetEngine(ctx).
+		Where("issue_id > 0").
+		In("issue_id", issueIDs).
+		Find(&prs)
+}
diff --git a/models/issues/pull_test.go b/models/issues/pull_test.go
new file mode 100644
index 0000000..8e0c020
--- /dev/null
+++ b/models/issues/pull_test.go
@@ -0,0 +1,476 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPullRequest_LoadAttributes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pr.LoadAttributes(db.DefaultContext))
+	assert.NotNil(t, pr.Merger)
+	assert.Equal(t, pr.MergerID, pr.Merger.ID)
+}
+
+func TestPullRequest_LoadIssue(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pr.LoadIssue(db.DefaultContext))
+	assert.NotNil(t, pr.Issue)
+	assert.Equal(t, int64(2), pr.Issue.ID)
+	require.NoError(t, pr.LoadIssue(db.DefaultContext))
+	assert.NotNil(t, pr.Issue)
+	assert.Equal(t, int64(2), pr.Issue.ID)
+}
+
+func TestPullRequest_LoadBaseRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pr.LoadBaseRepo(db.DefaultContext))
+	assert.NotNil(t, pr.BaseRepo)
+	assert.Equal(t, pr.BaseRepoID, pr.BaseRepo.ID)
+	require.NoError(t, pr.LoadBaseRepo(db.DefaultContext))
+	assert.NotNil(t, pr.BaseRepo)
+	assert.Equal(t, pr.BaseRepoID, pr.BaseRepo.ID)
+}
+
+func TestPullRequest_LoadHeadRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pr.LoadHeadRepo(db.DefaultContext))
+	assert.NotNil(t, pr.HeadRepo)
+	assert.Equal(t, pr.HeadRepoID, pr.HeadRepo.ID)
+}
+
+// TODO TestMerge
+
+// TODO TestNewPullRequest
+
+func TestPullRequestsNewest(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	prs, count, err := issues_model.PullRequests(db.DefaultContext, 1, &issues_model.PullRequestsOptions{
+		ListOptions: db.ListOptions{
+			Page: 1,
+		},
+		State:    "open",
+		SortType: "newest",
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, count)
+	if assert.Len(t, prs, 3) {
+		assert.EqualValues(t, 5, prs[0].ID)
+		assert.EqualValues(t, 2, prs[1].ID)
+		assert.EqualValues(t, 1, prs[2].ID)
+	}
+}
+
+func TestLoadRequestedReviewers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	pull := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pull.LoadIssue(db.DefaultContext))
+	issue := pull.Issue
+	require.NoError(t, issue.LoadRepo(db.DefaultContext))
+	assert.Empty(t, pull.RequestedReviewers)
+
+	user1, err := user_model.GetUserByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	comment, err := issues_model.AddReviewRequest(db.DefaultContext, issue, user1, &user_model.User{})
+	require.NoError(t, err)
+	assert.NotNil(t, comment)
+
+	require.NoError(t, pull.LoadRequestedReviewers(db.DefaultContext))
+	assert.Len(t, pull.RequestedReviewers, 1)
+
+	comment, err = issues_model.RemoveReviewRequest(db.DefaultContext, issue, user1, &user_model.User{})
+	require.NoError(t, err)
+	assert.NotNil(t, comment)
+
+	pull.RequestedReviewers = nil
+	require.NoError(t, pull.LoadRequestedReviewers(db.DefaultContext))
+	assert.Empty(t, pull.RequestedReviewers)
+}
+
+func TestPullRequestsOldest(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	prs, count, err := issues_model.PullRequests(db.DefaultContext, 1, &issues_model.PullRequestsOptions{
+		ListOptions: db.ListOptions{
+			Page: 1,
+		},
+		State:    "open",
+		SortType: "oldest",
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, count)
+	if assert.Len(t, prs, 3) {
+		assert.EqualValues(t, 1, prs[0].ID)
+		assert.EqualValues(t, 2, prs[1].ID)
+		assert.EqualValues(t, 5, prs[2].ID)
+	}
+}
+
+func TestGetUnmergedPullRequest(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr, err := issues_model.GetUnmergedPullRequest(db.DefaultContext, 1, 1, "branch2", "master", issues_model.PullRequestFlowGithub)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), pr.ID)
+
+	_, err = issues_model.GetUnmergedPullRequest(db.DefaultContext, 1, 9223372036854775807, "branch1", "master", issues_model.PullRequestFlowGithub)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrPullRequestNotExist(err))
+}
+
+func TestHasUnmergedPullRequestsByHeadInfo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	exist, err := issues_model.HasUnmergedPullRequestsByHeadInfo(db.DefaultContext, 1, "branch2")
+	require.NoError(t, err)
+	assert.True(t, exist)
+
+	exist, err = issues_model.HasUnmergedPullRequestsByHeadInfo(db.DefaultContext, 1, "not_exist_branch")
+	require.NoError(t, err)
+	assert.False(t, exist)
+}
+
+func TestGetUnmergedPullRequestsByHeadInfo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	prs, err := issues_model.GetUnmergedPullRequestsByHeadInfo(db.DefaultContext, 1, "branch2")
+	require.NoError(t, err)
+	assert.Len(t, prs, 1)
+	for _, pr := range prs {
+		assert.Equal(t, int64(1), pr.HeadRepoID)
+		assert.Equal(t, "branch2", pr.HeadBranch)
+	}
+}
+
+func TestGetUnmergedPullRequestsByHeadInfoMax(t *testing.T) {
+	defer tests.AddFixtures("models/fixtures/TestGetUnmergedPullRequestsByHeadInfoMax/")()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repoID := int64(1)
+	olderThan := int64(0)
+
+	// for NULL created field the olderThan condition is ignored
+	prs, err := issues_model.GetUnmergedPullRequestsByHeadInfoMax(db.DefaultContext, repoID, olderThan, "branch2")
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), prs[0].HeadRepoID)
+
+	// test for when the created field is set
+	branch := "branchmax"
+	prs, err = issues_model.GetUnmergedPullRequestsByHeadInfoMax(db.DefaultContext, repoID, olderThan, branch)
+	require.NoError(t, err)
+	assert.Empty(t, prs)
+	olderThan = time.Now().UnixNano()
+	require.NoError(t, err)
+	prs, err = issues_model.GetUnmergedPullRequestsByHeadInfoMax(db.DefaultContext, repoID, olderThan, branch)
+	require.NoError(t, err)
+	assert.Len(t, prs, 1)
+	for _, pr := range prs {
+		assert.Equal(t, int64(1), pr.HeadRepoID)
+		assert.Equal(t, branch, pr.HeadBranch)
+	}
+	pr := prs[0]
+
+	for _, testCase := range []struct {
+		table   string
+		field   string
+		id      int64
+		match   any
+		nomatch any
+	}{
+		{
+			table:   "issue",
+			field:   "is_closed",
+			id:      pr.IssueID,
+			match:   false,
+			nomatch: true,
+		},
+		{
+			table:   "pull_request",
+			field:   "flow",
+			id:      pr.ID,
+			match:   issues_model.PullRequestFlowGithub,
+			nomatch: issues_model.PullRequestFlowAGit,
+		},
+		{
+			table:   "pull_request",
+			field:   "head_repo_id",
+			id:      pr.ID,
+			match:   pr.HeadRepoID,
+			nomatch: 0,
+		},
+		{
+			table:   "pull_request",
+			field:   "head_branch",
+			id:      pr.ID,
+			match:   pr.HeadBranch,
+			nomatch: "something else",
+		},
+		{
+			table:   "pull_request",
+			field:   "has_merged",
+			id:      pr.ID,
+			match:   false,
+			nomatch: true,
+		},
+	} {
+		t.Run(testCase.field, func(t *testing.T) {
+			update := fmt.Sprintf("UPDATE `%s` SET `%s` = ? WHERE `id` = ?", testCase.table, testCase.field)
+
+			// expect no match
+			_, err = db.GetEngine(db.DefaultContext).Exec(update, testCase.nomatch, testCase.id)
+			require.NoError(t, err)
+			prs, err = issues_model.GetUnmergedPullRequestsByHeadInfoMax(db.DefaultContext, repoID, olderThan, branch)
+			require.NoError(t, err)
+			assert.Empty(t, prs)
+
+			// expect one match
+			_, err = db.GetEngine(db.DefaultContext).Exec(update, testCase.match, testCase.id)
+			require.NoError(t, err)
+			prs, err = issues_model.GetUnmergedPullRequestsByHeadInfoMax(db.DefaultContext, repoID, olderThan, branch)
+			require.NoError(t, err)
+			assert.Len(t, prs, 1)
+
+			// identical to the known PR
+			assert.Equal(t, pr.ID, prs[0].ID)
+		})
+	}
+}
+
+func TestGetUnmergedPullRequestsByBaseInfo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	prs, err := issues_model.GetUnmergedPullRequestsByBaseInfo(db.DefaultContext, 1, "master")
+	require.NoError(t, err)
+	assert.Len(t, prs, 1)
+	pr := prs[0]
+	assert.Equal(t, int64(2), pr.ID)
+	assert.Equal(t, int64(1), pr.BaseRepoID)
+	assert.Equal(t, "master", pr.BaseBranch)
+}
+
+func TestGetPullRequestByIndex(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr, err := issues_model.GetPullRequestByIndex(db.DefaultContext, 1, 2)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), pr.BaseRepoID)
+	assert.Equal(t, int64(2), pr.Index)
+
+	_, err = issues_model.GetPullRequestByIndex(db.DefaultContext, 9223372036854775807, 9223372036854775807)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrPullRequestNotExist(err))
+
+	_, err = issues_model.GetPullRequestByIndex(db.DefaultContext, 1, 0)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrPullRequestNotExist(err))
+}
+
+func TestGetPullRequestByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr, err := issues_model.GetPullRequestByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), pr.ID)
+	assert.Equal(t, int64(2), pr.IssueID)
+
+	_, err = issues_model.GetPullRequestByID(db.DefaultContext, 9223372036854775807)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrPullRequestNotExist(err))
+}
+
+func TestGetPullRequestByIssueID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr, err := issues_model.GetPullRequestByIssueID(db.DefaultContext, 2)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), pr.IssueID)
+
+	_, err = issues_model.GetPullRequestByIssueID(db.DefaultContext, 9223372036854775807)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrPullRequestNotExist(err))
+}
+
+func TestPullRequest_Update(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	pr.BaseBranch = "baseBranch"
+	pr.HeadBranch = "headBranch"
+	pr.Update(db.DefaultContext)
+
+	pr = unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: pr.ID})
+	assert.Equal(t, "baseBranch", pr.BaseBranch)
+	assert.Equal(t, "headBranch", pr.HeadBranch)
+	unittest.CheckConsistencyFor(t, pr)
+}
+
+func TestPullRequest_UpdateCols(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := &issues_model.PullRequest{
+		ID:         1,
+		BaseBranch: "baseBranch",
+		HeadBranch: "headBranch",
+	}
+	require.NoError(t, pr.UpdateCols(db.DefaultContext, "head_branch"))
+
+	pr = unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	assert.Equal(t, "master", pr.BaseBranch)
+	assert.Equal(t, "headBranch", pr.HeadBranch)
+	unittest.CheckConsistencyFor(t, pr)
+}
+
+func TestPullRequestList_LoadAttributes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	prs := []*issues_model.PullRequest{
+		unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1}),
+		unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2}),
+	}
+	require.NoError(t, issues_model.PullRequestList(prs).LoadAttributes(db.DefaultContext))
+	for _, pr := range prs {
+		assert.NotNil(t, pr.Issue)
+		assert.Equal(t, pr.IssueID, pr.Issue.ID)
+	}
+
+	require.NoError(t, issues_model.PullRequestList([]*issues_model.PullRequest{}).LoadAttributes(db.DefaultContext))
+}
+
+// TODO TestAddTestPullRequestTask
+
+func TestPullRequest_IsWorkInProgress(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2})
+	pr.LoadIssue(db.DefaultContext)
+
+	assert.False(t, pr.IsWorkInProgress(db.DefaultContext))
+
+	pr.Issue.Title = "WIP: " + pr.Issue.Title
+	assert.True(t, pr.IsWorkInProgress(db.DefaultContext))
+
+	pr.Issue.Title = "[wip]: " + pr.Issue.Title
+	assert.True(t, pr.IsWorkInProgress(db.DefaultContext))
+}
+
+func TestPullRequest_GetWorkInProgressPrefixWorkInProgress(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 2})
+	pr.LoadIssue(db.DefaultContext)
+
+	assert.Empty(t, pr.GetWorkInProgressPrefix(db.DefaultContext))
+
+	original := pr.Issue.Title
+	pr.Issue.Title = "WIP: " + original
+	assert.Equal(t, "WIP:", pr.GetWorkInProgressPrefix(db.DefaultContext))
+
+	pr.Issue.Title = "[wip] " + original
+	assert.Equal(t, "[wip]", pr.GetWorkInProgressPrefix(db.DefaultContext))
+}
+
+func TestDeleteOrphanedObjects(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	countBefore, err := db.GetEngine(db.DefaultContext).Count(&issues_model.PullRequest{})
+	require.NoError(t, err)
+
+	_, err = db.GetEngine(db.DefaultContext).Insert(&issues_model.PullRequest{IssueID: 1000}, &issues_model.PullRequest{IssueID: 1001}, &issues_model.PullRequest{IssueID: 1003})
+	require.NoError(t, err)
+
+	orphaned, err := db.CountOrphanedObjects(db.DefaultContext, "pull_request", "issue", "pull_request.issue_id=issue.id")
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, orphaned)
+
+	err = db.DeleteOrphanedObjects(db.DefaultContext, "pull_request", "issue", "pull_request.issue_id=issue.id")
+	require.NoError(t, err)
+
+	countAfter, err := db.GetEngine(db.DefaultContext).Count(&issues_model.PullRequest{})
+	require.NoError(t, err)
+	assert.EqualValues(t, countBefore, countAfter)
+}
+
+func TestParseCodeOwnersLine(t *testing.T) {
+	type CodeOwnerTest struct {
+		Line   string
+		Tokens []string
+	}
+
+	given := []CodeOwnerTest{
+		{Line: "", Tokens: nil},
+		{Line: "# comment", Tokens: []string{}},
+		{Line: "!.* @user1 @org1/team1", Tokens: []string{"!.*", "@user1", "@org1/team1"}},
+		{Line: `.*\\.js @user2 #comment`, Tokens: []string{`.*\.js`, "@user2"}},
+		{Line: `docs/(aws|google|azure)/[^/]*\\.(md|txt) @org3 @org2/team2`, Tokens: []string{`docs/(aws|google|azure)/[^/]*\.(md|txt)`, "@org3", "@org2/team2"}},
+		{Line: `\#path @org3`, Tokens: []string{`#path`, "@org3"}},
+		{Line: `path\ with\ spaces/ @org3`, Tokens: []string{`path with spaces/`, "@org3"}},
+	}
+
+	for _, g := range given {
+		tokens := issues_model.TokenizeCodeOwnersLine(g.Line)
+		assert.Equal(t, g.Tokens, tokens, "Codeowners tokenizer failed")
+	}
+}
+
+func TestGetApprovers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 5})
+	// Official reviews are already deduplicated. Allow unofficial reviews
+	// to assert that there are no duplicated approvers.
+	setting.Repository.PullRequest.DefaultMergeMessageOfficialApproversOnly = false
+	approvers := pr.GetApprovers(db.DefaultContext)
+	expected := "Reviewed-by: User Five <user5@example.com>\nReviewed-by: Org Six <org6@example.com>\n"
+	assert.EqualValues(t, expected, approvers)
+}
+
+func TestGetPullRequestByMergedCommit(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	pr, err := issues_model.GetPullRequestByMergedCommit(db.DefaultContext, 1, "1a8823cd1a9549fde083f992f6b9b87a7ab74fb3")
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, pr.ID)
+
+	_, err = issues_model.GetPullRequestByMergedCommit(db.DefaultContext, 0, "1a8823cd1a9549fde083f992f6b9b87a7ab74fb3")
+	require.ErrorAs(t, err, &issues_model.ErrPullRequestNotExist{})
+	_, err = issues_model.GetPullRequestByMergedCommit(db.DefaultContext, 1, "")
+	require.ErrorAs(t, err, &issues_model.ErrPullRequestNotExist{})
+}
+
+func TestMigrate_InsertPullRequests(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	reponame := "repo1"
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: reponame})
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
+
+	i := &issues_model.Issue{
+		RepoID:   repo.ID,
+		Repo:     repo,
+		Title:    "title1",
+		Content:  "issuecontent1",
+		IsPull:   true,
+		PosterID: owner.ID,
+		Poster:   owner,
+	}
+
+	p := &issues_model.PullRequest{
+		Issue: i,
+	}
+
+	err := issues_model.InsertPullRequests(db.DefaultContext, p)
+	require.NoError(t, err)
+
+	_ = unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{IssueID: i.ID})
+
+	unittest.CheckConsistencyFor(t, &issues_model.Issue{}, &issues_model.PullRequest{})
+}
diff --git a/models/issues/reaction.go b/models/issues/reaction.go
new file mode 100644
index 0000000..eb7faef
--- /dev/null
+++ b/models/issues/reaction.go
@@ -0,0 +1,373 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrForbiddenIssueReaction is used when a forbidden reaction was try to created
+type ErrForbiddenIssueReaction struct {
+	Reaction string
+}
+
+// IsErrForbiddenIssueReaction checks if an error is a ErrForbiddenIssueReaction.
+func IsErrForbiddenIssueReaction(err error) bool {
+	_, ok := err.(ErrForbiddenIssueReaction)
+	return ok
+}
+
+func (err ErrForbiddenIssueReaction) Error() string {
+	return fmt.Sprintf("'%s' is not an allowed reaction", err.Reaction)
+}
+
+func (err ErrForbiddenIssueReaction) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrReactionAlreadyExist is used when a existing reaction was try to created
+type ErrReactionAlreadyExist struct {
+	Reaction string
+}
+
+// IsErrReactionAlreadyExist checks if an error is a ErrReactionAlreadyExist.
+func IsErrReactionAlreadyExist(err error) bool {
+	_, ok := err.(ErrReactionAlreadyExist)
+	return ok
+}
+
+func (err ErrReactionAlreadyExist) Error() string {
+	return fmt.Sprintf("reaction '%s' already exists", err.Reaction)
+}
+
+func (err ErrReactionAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// Reaction represents a reactions on issues and comments.
+type Reaction struct {
+	ID               int64              `xorm:"pk autoincr"`
+	Type             string             `xorm:"INDEX UNIQUE(s) NOT NULL"`
+	IssueID          int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+	CommentID        int64              `xorm:"INDEX UNIQUE(s)"`
+	UserID           int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+	OriginalAuthorID int64              `xorm:"INDEX UNIQUE(s) NOT NULL DEFAULT(0)"`
+	OriginalAuthor   string             `xorm:"INDEX UNIQUE(s)"`
+	User             *user_model.User   `xorm:"-"`
+	CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+// LoadUser load user of reaction
+func (r *Reaction) LoadUser(ctx context.Context) (*user_model.User, error) {
+	if r.User != nil {
+		return r.User, nil
+	}
+	user, err := user_model.GetUserByID(ctx, r.UserID)
+	if err != nil {
+		return nil, err
+	}
+	r.User = user
+	return user, nil
+}
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Reaction) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.UserID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (r *Reaction) GetUserID() int64 { return r.UserID }
+
+// GetExternalName ExternalUserRemappable interface
+func (r *Reaction) GetExternalName() string { return r.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (r *Reaction) GetExternalID() int64 { return r.OriginalAuthorID }
+
+func init() {
+	db.RegisterModel(new(Reaction))
+}
+
+// FindReactionsOptions describes the conditions to Find reactions
+type FindReactionsOptions struct {
+	db.ListOptions
+	IssueID   int64
+	CommentID int64
+	UserID    int64
+	Reaction  string
+}
+
+func (opts *FindReactionsOptions) toConds() builder.Cond {
+	// If Issue ID is set add to Query
+	cond := builder.NewCond()
+	if opts.IssueID > 0 {
+		cond = cond.And(builder.Eq{"reaction.issue_id": opts.IssueID})
+	}
+	// If CommentID is > 0 add to Query
+	// If it is 0 Query ignore CommentID to select
+	// If it is -1 it explicit search of Issue Reactions where CommentID = 0
+	if opts.CommentID > 0 {
+		cond = cond.And(builder.Eq{"reaction.comment_id": opts.CommentID})
+	} else if opts.CommentID == -1 {
+		cond = cond.And(builder.Eq{"reaction.comment_id": 0})
+	}
+	if opts.UserID > 0 {
+		cond = cond.And(builder.Eq{
+			"reaction.user_id":            opts.UserID,
+			"reaction.original_author_id": 0,
+		})
+	}
+	if opts.Reaction != "" {
+		cond = cond.And(builder.Eq{"reaction.type": opts.Reaction})
+	}
+
+	return cond
+}
+
+// FindCommentReactions returns a ReactionList of all reactions from an comment
+func FindCommentReactions(ctx context.Context, issueID, commentID int64) (ReactionList, int64, error) {
+	return FindReactions(ctx, FindReactionsOptions{
+		IssueID:   issueID,
+		CommentID: commentID,
+	})
+}
+
+// FindIssueReactions returns a ReactionList of all reactions from an issue
+func FindIssueReactions(ctx context.Context, issueID int64, listOptions db.ListOptions) (ReactionList, int64, error) {
+	return FindReactions(ctx, FindReactionsOptions{
+		ListOptions: listOptions,
+		IssueID:     issueID,
+		CommentID:   -1,
+	})
+}
+
+// FindReactions returns a ReactionList of all reactions from an issue or a comment
+func FindReactions(ctx context.Context, opts FindReactionsOptions) (ReactionList, int64, error) {
+	sess := db.GetEngine(ctx).
+		Where(opts.toConds()).
+		In("reaction.`type`", setting.UI.Reactions).
+		Asc("reaction.issue_id", "reaction.comment_id", "reaction.created_unix", "reaction.id")
+	if opts.Page != 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+
+		reactions := make([]*Reaction, 0, opts.PageSize)
+		count, err := sess.FindAndCount(&reactions)
+		return reactions, count, err
+	}
+
+	reactions := make([]*Reaction, 0, 10)
+	count, err := sess.FindAndCount(&reactions)
+	return reactions, count, err
+}
+
+func createReaction(ctx context.Context, opts *ReactionOptions) (*Reaction, error) {
+	reaction := &Reaction{
+		Type:      opts.Type,
+		UserID:    opts.DoerID,
+		IssueID:   opts.IssueID,
+		CommentID: opts.CommentID,
+	}
+	findOpts := FindReactionsOptions{
+		IssueID:   opts.IssueID,
+		CommentID: opts.CommentID,
+		Reaction:  opts.Type,
+		UserID:    opts.DoerID,
+	}
+	if findOpts.CommentID == 0 {
+		// explicit search of Issue Reactions where CommentID = 0
+		findOpts.CommentID = -1
+	}
+
+	existingR, _, err := FindReactions(ctx, findOpts)
+	if err != nil {
+		return nil, err
+	}
+	if len(existingR) > 0 {
+		return existingR[0], ErrReactionAlreadyExist{Reaction: opts.Type}
+	}
+
+	if err := db.Insert(ctx, reaction); err != nil {
+		return nil, err
+	}
+
+	return reaction, nil
+}
+
+// ReactionOptions defines options for creating or deleting reactions
+type ReactionOptions struct {
+	Type      string
+	DoerID    int64
+	IssueID   int64
+	CommentID int64
+}
+
+// CreateReaction creates reaction for issue or comment.
+func CreateReaction(ctx context.Context, opts *ReactionOptions) (*Reaction, error) {
+	if !setting.UI.ReactionsLookup.Contains(opts.Type) {
+		return nil, ErrForbiddenIssueReaction{opts.Type}
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	reaction, err := createReaction(ctx, opts)
+	if err != nil {
+		return reaction, err
+	}
+
+	if err := committer.Commit(); err != nil {
+		return nil, err
+	}
+	return reaction, nil
+}
+
+// DeleteReaction deletes reaction for issue or comment.
+func DeleteReaction(ctx context.Context, opts *ReactionOptions) error {
+	reaction := &Reaction{
+		Type:      opts.Type,
+		UserID:    opts.DoerID,
+		IssueID:   opts.IssueID,
+		CommentID: opts.CommentID,
+	}
+
+	sess := db.GetEngine(ctx).Where("original_author_id = 0")
+	if opts.CommentID == -1 {
+		reaction.CommentID = 0
+		sess.MustCols("comment_id")
+	}
+
+	_, err := sess.Delete(reaction)
+	return err
+}
+
+// DeleteIssueReaction deletes a reaction on issue.
+func DeleteIssueReaction(ctx context.Context, doerID, issueID int64, content string) error {
+	return DeleteReaction(ctx, &ReactionOptions{
+		Type:      content,
+		DoerID:    doerID,
+		IssueID:   issueID,
+		CommentID: -1,
+	})
+}
+
+// DeleteCommentReaction deletes a reaction on comment.
+func DeleteCommentReaction(ctx context.Context, doerID, issueID, commentID int64, content string) error {
+	return DeleteReaction(ctx, &ReactionOptions{
+		Type:      content,
+		DoerID:    doerID,
+		IssueID:   issueID,
+		CommentID: commentID,
+	})
+}
+
+// ReactionList represents list of reactions
+type ReactionList []*Reaction
+
+// HasUser check if user has reacted
+func (list ReactionList) HasUser(userID int64) bool {
+	if userID == 0 {
+		return false
+	}
+	for _, reaction := range list {
+		if reaction.OriginalAuthor == "" && reaction.UserID == userID {
+			return true
+		}
+	}
+	return false
+}
+
+// GroupByType returns reactions grouped by type
+func (list ReactionList) GroupByType() map[string]ReactionList {
+	reactions := make(map[string]ReactionList)
+	for _, reaction := range list {
+		reactions[reaction.Type] = append(reactions[reaction.Type], reaction)
+	}
+	return reactions
+}
+
+func (list ReactionList) getUserIDs() []int64 {
+	return container.FilterSlice(list, func(reaction *Reaction) (int64, bool) {
+		if reaction.OriginalAuthor != "" {
+			return 0, false
+		}
+		return reaction.UserID, true
+	})
+}
+
+func valuesUser(m map[int64]*user_model.User) []*user_model.User {
+	values := make([]*user_model.User, 0, len(m))
+	for _, v := range m {
+		values = append(values, v)
+	}
+	return values
+}
+
+// LoadUsers loads reactions' all users
+func (list ReactionList) LoadUsers(ctx context.Context, repo *repo_model.Repository) ([]*user_model.User, error) {
+	if len(list) == 0 {
+		return nil, nil
+	}
+
+	userIDs := list.getUserIDs()
+	userMaps := make(map[int64]*user_model.User, len(userIDs))
+	err := db.GetEngine(ctx).
+		In("id", userIDs).
+		Find(&userMaps)
+	if err != nil {
+		return nil, fmt.Errorf("find user: %w", err)
+	}
+
+	for _, reaction := range list {
+		if reaction.OriginalAuthor != "" {
+			reaction.User = user_model.NewReplaceUser(fmt.Sprintf("%s(%s)", reaction.OriginalAuthor, repo.OriginalServiceType.Name()))
+		} else if user, ok := userMaps[reaction.UserID]; ok {
+			reaction.User = user
+		} else {
+			reaction.User = user_model.NewGhostUser()
+		}
+	}
+	return valuesUser(userMaps), nil
+}
+
+// GetFirstUsers returns first reacted user display names separated by comma
+func (list ReactionList) GetFirstUsers() string {
+	var buffer bytes.Buffer
+	rem := setting.UI.ReactionMaxUserNum
+	for _, reaction := range list {
+		if buffer.Len() > 0 {
+			buffer.WriteString(", ")
+		}
+		buffer.WriteString(reaction.User.Name)
+		if rem--; rem == 0 {
+			break
+		}
+	}
+	return buffer.String()
+}
+
+// GetMoreUserCount returns count of not shown users in reaction tooltip
+func (list ReactionList) GetMoreUserCount() int {
+	if len(list) <= setting.UI.ReactionMaxUserNum {
+		return 0
+	}
+	return len(list) - setting.UI.ReactionMaxUserNum
+}
diff --git a/models/issues/reaction_test.go b/models/issues/reaction_test.go
new file mode 100644
index 0000000..e02e6d7
--- /dev/null
+++ b/models/issues/reaction_test.go
@@ -0,0 +1,178 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func addReaction(t *testing.T, doerID, issueID, commentID int64, content string) {
+	var reaction *issues_model.Reaction
+	var err error
+	// NOTE: This doesn't do user blocking checking.
+	reaction, err = issues_model.CreateReaction(db.DefaultContext, &issues_model.ReactionOptions{
+		DoerID:    doerID,
+		IssueID:   issueID,
+		CommentID: commentID,
+		Type:      content,
+	})
+
+	require.NoError(t, err)
+	assert.NotNil(t, reaction)
+}
+
+func TestIssueAddReaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	var issue1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, 0, "heart")
+
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Reaction{Type: "heart", UserID: user1.ID, IssueID: issue1ID})
+}
+
+func TestIssueAddDuplicateReaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	var issue1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, 0, "heart")
+
+	reaction, err := issues_model.CreateReaction(db.DefaultContext, &issues_model.ReactionOptions{
+		DoerID:  user1.ID,
+		IssueID: issue1ID,
+		Type:    "heart",
+	})
+	require.Error(t, err)
+	assert.Equal(t, issues_model.ErrReactionAlreadyExist{Reaction: "heart"}, err)
+
+	existingR := unittest.AssertExistsAndLoadBean(t, &issues_model.Reaction{Type: "heart", UserID: user1.ID, IssueID: issue1ID})
+	assert.Equal(t, existingR.ID, reaction.ID)
+}
+
+func TestIssueDeleteReaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	var issue1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, 0, "heart")
+
+	err := issues_model.DeleteIssueReaction(db.DefaultContext, user1.ID, issue1ID, "heart")
+	require.NoError(t, err)
+
+	unittest.AssertNotExistsBean(t, &issues_model.Reaction{Type: "heart", UserID: user1.ID, IssueID: issue1ID})
+}
+
+func TestIssueReactionCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	setting.UI.ReactionMaxUserNum = 2
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+	user4 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+	ghost := user_model.NewGhostUser()
+
+	var issueID int64 = 2
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	addReaction(t, user1.ID, issueID, 0, "heart")
+	addReaction(t, user2.ID, issueID, 0, "heart")
+	addReaction(t, org3.ID, issueID, 0, "heart")
+	addReaction(t, org3.ID, issueID, 0, "+1")
+	addReaction(t, user4.ID, issueID, 0, "+1")
+	addReaction(t, user4.ID, issueID, 0, "heart")
+	addReaction(t, ghost.ID, issueID, 0, "-1")
+
+	reactionsList, _, err := issues_model.FindReactions(db.DefaultContext, issues_model.FindReactionsOptions{
+		IssueID: issueID,
+	})
+	require.NoError(t, err)
+	assert.Len(t, reactionsList, 7)
+	_, err = reactionsList.LoadUsers(db.DefaultContext, repo)
+	require.NoError(t, err)
+
+	reactions := reactionsList.GroupByType()
+	assert.Len(t, reactions["heart"], 4)
+	assert.Equal(t, 2, reactions["heart"].GetMoreUserCount())
+	assert.Equal(t, user1.Name+", "+user2.Name, reactions["heart"].GetFirstUsers())
+	assert.True(t, reactions["heart"].HasUser(1))
+	assert.False(t, reactions["heart"].HasUser(5))
+	assert.False(t, reactions["heart"].HasUser(0))
+	assert.Len(t, reactions["+1"], 2)
+	assert.Equal(t, 0, reactions["+1"].GetMoreUserCount())
+	assert.Len(t, reactions["-1"], 1)
+}
+
+func TestIssueCommentAddReaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	var issue1ID int64 = 1
+	var comment1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, comment1ID, "heart")
+
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Reaction{Type: "heart", UserID: user1.ID, IssueID: issue1ID, CommentID: comment1ID})
+}
+
+func TestIssueCommentDeleteReaction(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+	user4 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+
+	var issue1ID int64 = 1
+	var comment1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, comment1ID, "heart")
+	addReaction(t, user2.ID, issue1ID, comment1ID, "heart")
+	addReaction(t, org3.ID, issue1ID, comment1ID, "heart")
+	addReaction(t, user4.ID, issue1ID, comment1ID, "+1")
+
+	reactionsList, _, err := issues_model.FindReactions(db.DefaultContext, issues_model.FindReactionsOptions{
+		IssueID:   issue1ID,
+		CommentID: comment1ID,
+	})
+	require.NoError(t, err)
+	assert.Len(t, reactionsList, 4)
+
+	reactions := reactionsList.GroupByType()
+	assert.Len(t, reactions["heart"], 3)
+	assert.Len(t, reactions["+1"], 1)
+}
+
+func TestIssueCommentReactionCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	var issue1ID int64 = 1
+	var comment1ID int64 = 1
+
+	addReaction(t, user1.ID, issue1ID, comment1ID, "heart")
+	require.NoError(t, issues_model.DeleteCommentReaction(db.DefaultContext, user1.ID, issue1ID, comment1ID, "heart"))
+
+	unittest.AssertNotExistsBean(t, &issues_model.Reaction{Type: "heart", UserID: user1.ID, IssueID: issue1ID, CommentID: comment1ID})
+}
diff --git a/models/issues/review.go b/models/issues/review.go
new file mode 100644
index 0000000..a39c120
--- /dev/null
+++ b/models/issues/review.go
@@ -0,0 +1,1056 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrReviewNotExist represents a "ReviewNotExist" kind of error.
+type ErrReviewNotExist struct {
+	ID int64
+}
+
+// IsErrReviewNotExist checks if an error is a ErrReviewNotExist.
+func IsErrReviewNotExist(err error) bool {
+	_, ok := err.(ErrReviewNotExist)
+	return ok
+}
+
+func (err ErrReviewNotExist) Error() string {
+	return fmt.Sprintf("review does not exist [id: %d]", err.ID)
+}
+
+func (err ErrReviewNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrNotValidReviewRequest an not allowed review request modify
+type ErrNotValidReviewRequest struct {
+	Reason string
+	UserID int64
+	RepoID int64
+}
+
+// IsErrNotValidReviewRequest checks if an error is a ErrNotValidReviewRequest.
+func IsErrNotValidReviewRequest(err error) bool {
+	_, ok := err.(ErrNotValidReviewRequest)
+	return ok
+}
+
+func (err ErrNotValidReviewRequest) Error() string {
+	return fmt.Sprintf("%s [user_id: %d, repo_id: %d]",
+		err.Reason,
+		err.UserID,
+		err.RepoID)
+}
+
+func (err ErrNotValidReviewRequest) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrReviewRequestOnClosedPR represents an error when an user tries to request a re-review on a closed or merged PR.
+type ErrReviewRequestOnClosedPR struct{}
+
+// IsErrReviewRequestOnClosedPR checks if an error is an ErrReviewRequestOnClosedPR.
+func IsErrReviewRequestOnClosedPR(err error) bool {
+	_, ok := err.(ErrReviewRequestOnClosedPR)
+	return ok
+}
+
+func (err ErrReviewRequestOnClosedPR) Error() string {
+	return "cannot request a re-review on a closed or merged PR"
+}
+
+func (err ErrReviewRequestOnClosedPR) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ReviewType defines the sort of feedback a review gives
+type ReviewType int
+
+// ReviewTypeUnknown unknown review type
+const ReviewTypeUnknown ReviewType = -1
+
+const (
+	// ReviewTypePending is a review which is not published yet
+	ReviewTypePending ReviewType = iota
+	// ReviewTypeApprove approves changes
+	ReviewTypeApprove
+	// ReviewTypeComment gives general feedback
+	ReviewTypeComment
+	// ReviewTypeReject gives feedback blocking merge
+	ReviewTypeReject
+	// ReviewTypeRequest request review from others
+	ReviewTypeRequest
+)
+
+// Icon returns the corresponding icon for the review type
+func (rt ReviewType) Icon() string {
+	switch rt {
+	case ReviewTypeApprove:
+		return "check"
+	case ReviewTypeReject:
+		return "diff"
+	case ReviewTypeComment:
+		return "comment"
+	case ReviewTypeRequest:
+		return "dot-fill"
+	default:
+		return "comment"
+	}
+}
+
+// Review represents collection of code comments giving feedback for a PR
+type Review struct {
+	ID               int64 `xorm:"pk autoincr"`
+	Type             ReviewType
+	Reviewer         *user_model.User   `xorm:"-"`
+	ReviewerID       int64              `xorm:"index"`
+	ReviewerTeamID   int64              `xorm:"NOT NULL DEFAULT 0"`
+	ReviewerTeam     *organization.Team `xorm:"-"`
+	OriginalAuthor   string
+	OriginalAuthorID int64
+	Issue            *Issue `xorm:"-"`
+	IssueID          int64  `xorm:"index"`
+	Content          string `xorm:"TEXT"`
+	// Official is a review made by an assigned approver (counts towards approval)
+	Official  bool   `xorm:"NOT NULL DEFAULT false"`
+	CommitID  string `xorm:"VARCHAR(64)"`
+	Stale     bool   `xorm:"NOT NULL DEFAULT false"`
+	Dismissed bool   `xorm:"NOT NULL DEFAULT false"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+
+	// CodeComments are the initial code comments of the review
+	CodeComments CodeComments `xorm:"-"`
+
+	Comments []*Comment `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(Review))
+}
+
+// LoadCodeComments loads CodeComments
+func (r *Review) LoadCodeComments(ctx context.Context) (err error) {
+	if r.CodeComments != nil {
+		return err
+	}
+	if err = r.LoadIssue(ctx); err != nil {
+		return err
+	}
+	r.CodeComments, err = fetchCodeCommentsByReview(ctx, r.Issue, nil, r, false)
+	return err
+}
+
+func (r *Review) LoadIssue(ctx context.Context) (err error) {
+	if r.Issue != nil {
+		return err
+	}
+	r.Issue, err = GetIssueByID(ctx, r.IssueID)
+	return err
+}
+
+// LoadReviewer loads reviewer
+func (r *Review) LoadReviewer(ctx context.Context) (err error) {
+	if r.ReviewerID == 0 || r.Reviewer != nil {
+		return err
+	}
+	r.Reviewer, err = user_model.GetPossibleUserByID(ctx, r.ReviewerID)
+	if err != nil {
+		if !user_model.IsErrUserNotExist(err) {
+			return fmt.Errorf("GetPossibleUserByID [%d]: %w", r.ReviewerID, err)
+		}
+		r.ReviewerID = user_model.GhostUserID
+		r.Reviewer = user_model.NewGhostUser()
+		return nil
+	}
+	return err
+}
+
+// LoadReviewerTeam loads reviewer team
+func (r *Review) LoadReviewerTeam(ctx context.Context) (err error) {
+	if r.ReviewerTeamID == 0 || r.ReviewerTeam != nil {
+		return nil
+	}
+
+	r.ReviewerTeam, err = organization.GetTeamByID(ctx, r.ReviewerTeamID)
+	return err
+}
+
+// LoadAttributes loads all attributes except CodeComments
+func (r *Review) LoadAttributes(ctx context.Context) (err error) {
+	if err = r.LoadIssue(ctx); err != nil {
+		return err
+	}
+	if err = r.LoadCodeComments(ctx); err != nil {
+		return err
+	}
+	if err = r.LoadReviewer(ctx); err != nil {
+		return err
+	}
+	if err = r.LoadReviewerTeam(ctx); err != nil {
+		return err
+	}
+	return err
+}
+
+func (r *Review) HTMLTypeColorName() string {
+	switch r.Type {
+	case ReviewTypeApprove:
+		if r.Stale {
+			return "yellow"
+		}
+		return "green"
+	case ReviewTypeComment:
+		return "grey"
+	case ReviewTypeReject:
+		return "red"
+	case ReviewTypeRequest:
+		return "yellow"
+	}
+	return "grey"
+}
+
+// GetReviewByID returns the review by the given ID
+func GetReviewByID(ctx context.Context, id int64) (*Review, error) {
+	review := new(Review)
+	if has, err := db.GetEngine(ctx).ID(id).Get(review); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrReviewNotExist{ID: id}
+	}
+	return review, nil
+}
+
+// CreateReviewOptions represent the options to create a review. Type, Issue and Reviewer are required.
+type CreateReviewOptions struct {
+	Content      string
+	Type         ReviewType
+	Issue        *Issue
+	Reviewer     *user_model.User
+	ReviewerTeam *organization.Team
+	Official     bool
+	CommitID     string
+	Stale        bool
+}
+
+// IsOfficialReviewer check if at least one of the provided reviewers can make official reviews in issue (counts towards required approvals)
+func IsOfficialReviewer(ctx context.Context, issue *Issue, reviewer *user_model.User) (bool, error) {
+	if err := issue.LoadPullRequest(ctx); err != nil {
+		return false, err
+	}
+
+	pr := issue.PullRequest
+	rule, err := git_model.GetFirstMatchProtectedBranchRule(ctx, pr.BaseRepoID, pr.BaseBranch)
+	if err != nil {
+		return false, err
+	}
+	if rule == nil {
+		// if no rule is found, then user with write access can make official reviews
+		err := pr.LoadBaseRepo(ctx)
+		if err != nil {
+			return false, err
+		}
+		writeAccess, err := access_model.HasAccessUnit(ctx, reviewer, pr.BaseRepo, unit.TypeCode, perm.AccessModeWrite)
+		if err != nil {
+			return false, err
+		}
+		return writeAccess, nil
+	}
+
+	official, err := git_model.IsUserOfficialReviewer(ctx, rule, reviewer)
+	if official || err != nil {
+		return official, err
+	}
+
+	return false, nil
+}
+
+// IsOfficialReviewerTeam check if reviewer in this team can make official reviews in issue (counts towards required approvals)
+func IsOfficialReviewerTeam(ctx context.Context, issue *Issue, team *organization.Team) (bool, error) {
+	if err := issue.LoadPullRequest(ctx); err != nil {
+		return false, err
+	}
+	pb, err := git_model.GetFirstMatchProtectedBranchRule(ctx, issue.PullRequest.BaseRepoID, issue.PullRequest.BaseBranch)
+	if err != nil {
+		return false, err
+	}
+	if pb == nil {
+		return false, nil
+	}
+
+	if !pb.EnableApprovalsWhitelist {
+		return team.UnitAccessMode(ctx, unit.TypeCode) >= perm.AccessModeWrite, nil
+	}
+
+	return slices.Contains(pb.ApprovalsWhitelistTeamIDs, team.ID), nil
+}
+
+// CreateReview creates a new review based on opts
+func CreateReview(ctx context.Context, opts CreateReviewOptions) (*Review, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	review := &Review{
+		Issue:        opts.Issue,
+		IssueID:      opts.Issue.ID,
+		Reviewer:     opts.Reviewer,
+		ReviewerTeam: opts.ReviewerTeam,
+		Content:      opts.Content,
+		Official:     opts.Official,
+		CommitID:     opts.CommitID,
+		Stale:        opts.Stale,
+	}
+
+	if opts.Reviewer != nil {
+		review.Type = opts.Type
+		review.ReviewerID = opts.Reviewer.ID
+
+		reviewCond := builder.Eq{"reviewer_id": opts.Reviewer.ID, "issue_id": opts.Issue.ID}
+		// make sure user review requests are cleared
+		if opts.Type != ReviewTypePending {
+			if _, err := sess.Where(reviewCond.And(builder.Eq{"type": ReviewTypeRequest})).Delete(new(Review)); err != nil {
+				return nil, err
+			}
+		}
+		// make sure if the created review gets dismissed no old review surface
+		// other types can be ignored, as they don't affect branch protection
+		if opts.Type == ReviewTypeApprove || opts.Type == ReviewTypeReject {
+			if _, err := sess.Where(reviewCond.And(builder.In("type", ReviewTypeApprove, ReviewTypeReject))).
+				Cols("dismissed").Update(&Review{Dismissed: true}); err != nil {
+				return nil, err
+			}
+		}
+	} else if opts.ReviewerTeam != nil {
+		review.Type = ReviewTypeRequest
+		review.ReviewerTeamID = opts.ReviewerTeam.ID
+	} else {
+		return nil, fmt.Errorf("provide either reviewer or reviewer team")
+	}
+
+	if _, err := sess.Insert(review); err != nil {
+		return nil, err
+	}
+	return review, committer.Commit()
+}
+
+// GetCurrentReview returns the current pending review of reviewer for given issue
+func GetCurrentReview(ctx context.Context, reviewer *user_model.User, issue *Issue) (*Review, error) {
+	if reviewer == nil {
+		return nil, nil
+	}
+	reviews, err := FindReviews(ctx, FindReviewOptions{
+		Types:      []ReviewType{ReviewTypePending},
+		IssueID:    issue.ID,
+		ReviewerID: reviewer.ID,
+	})
+	if err != nil {
+		return nil, err
+	}
+	if len(reviews) == 0 {
+		return nil, ErrReviewNotExist{}
+	}
+	reviews[0].Reviewer = reviewer
+	reviews[0].Issue = issue
+	return reviews[0], nil
+}
+
+// ReviewExists returns whether a review exists for a particular line of code in the PR
+func ReviewExists(ctx context.Context, issue *Issue, treePath string, line int64) (bool, error) {
+	return db.GetEngine(ctx).Cols("id").Exist(&Comment{IssueID: issue.ID, TreePath: treePath, Line: line, Type: CommentTypeCode})
+}
+
+// ContentEmptyErr represents an content empty error
+type ContentEmptyErr struct{}
+
+func (ContentEmptyErr) Error() string {
+	return "Review content is empty"
+}
+
+// IsContentEmptyErr returns true if err is a ContentEmptyErr
+func IsContentEmptyErr(err error) bool {
+	_, ok := err.(ContentEmptyErr)
+	return ok
+}
+
+// SubmitReview creates a review out of the existing pending review or creates a new one if no pending review exist
+func SubmitReview(ctx context.Context, doer *user_model.User, issue *Issue, reviewType ReviewType, content, commitID string, stale bool, attachmentUUIDs []string) (*Review, *Comment, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	official := false
+
+	review, err := GetCurrentReview(ctx, doer, issue)
+	if err != nil {
+		if !IsErrReviewNotExist(err) {
+			return nil, nil, err
+		}
+
+		if reviewType != ReviewTypeApprove && len(strings.TrimSpace(content)) == 0 {
+			return nil, nil, ContentEmptyErr{}
+		}
+
+		if reviewType == ReviewTypeApprove || reviewType == ReviewTypeReject {
+			// Only reviewers latest review of type approve and reject shall count as "official", so existing reviews needs to be cleared
+			if _, err := db.Exec(ctx, "UPDATE `review` SET official=? WHERE issue_id=? AND reviewer_id=?", false, issue.ID, doer.ID); err != nil {
+				return nil, nil, err
+			}
+			if official, err = IsOfficialReviewer(ctx, issue, doer); err != nil {
+				return nil, nil, err
+			}
+		}
+
+		// No current review. Create a new one!
+		if review, err = CreateReview(ctx, CreateReviewOptions{
+			Type:     reviewType,
+			Issue:    issue,
+			Reviewer: doer,
+			Content:  content,
+			Official: official,
+			CommitID: commitID,
+			Stale:    stale,
+		}); err != nil {
+			return nil, nil, err
+		}
+	} else {
+		if err := review.LoadCodeComments(ctx); err != nil {
+			return nil, nil, err
+		}
+		if reviewType != ReviewTypeApprove && len(review.CodeComments) == 0 && len(strings.TrimSpace(content)) == 0 {
+			return nil, nil, ContentEmptyErr{}
+		}
+
+		if reviewType == ReviewTypeApprove || reviewType == ReviewTypeReject {
+			// Only reviewers latest review of type approve and reject shall count as "official", so existing reviews needs to be cleared
+			if _, err := db.Exec(ctx, "UPDATE `review` SET official=? WHERE issue_id=? AND reviewer_id=?", false, issue.ID, doer.ID); err != nil {
+				return nil, nil, err
+			}
+			if official, err = IsOfficialReviewer(ctx, issue, doer); err != nil {
+				return nil, nil, err
+			}
+		}
+
+		review.Official = official
+		review.Issue = issue
+		review.Content = content
+		review.Type = reviewType
+		review.CommitID = commitID
+		review.Stale = stale
+
+		if _, err := sess.ID(review.ID).Cols("content, type, official, commit_id, stale").Update(review); err != nil {
+			return nil, nil, err
+		}
+	}
+
+	comm, err := CreateComment(ctx, &CreateCommentOptions{
+		Type:        CommentTypeReview,
+		Doer:        doer,
+		Content:     review.Content,
+		Issue:       issue,
+		Repo:        issue.Repo,
+		ReviewID:    review.ID,
+		Attachments: attachmentUUIDs,
+	})
+	if err != nil || comm == nil {
+		return nil, nil, err
+	}
+
+	// try to remove team review request if need
+	if issue.Repo.Owner.IsOrganization() && (reviewType == ReviewTypeApprove || reviewType == ReviewTypeReject) {
+		teamReviewRequests := make([]*Review, 0, 10)
+		if err := sess.SQL("SELECT * FROM review WHERE issue_id = ? AND reviewer_team_id > 0 AND type = ?", issue.ID, ReviewTypeRequest).Find(&teamReviewRequests); err != nil {
+			return nil, nil, err
+		}
+
+		for _, teamReviewRequest := range teamReviewRequests {
+			ok, err := organization.IsTeamMember(ctx, issue.Repo.OwnerID, teamReviewRequest.ReviewerTeamID, doer.ID)
+			if err != nil {
+				return nil, nil, err
+			} else if !ok {
+				continue
+			}
+
+			if _, err := db.DeleteByID[Review](ctx, teamReviewRequest.ID); err != nil {
+				return nil, nil, err
+			}
+		}
+	}
+
+	comm.Review = review
+	return review, comm, committer.Commit()
+}
+
+// GetReviewByIssueIDAndUserID get the latest review of reviewer for a pull request
+func GetReviewByIssueIDAndUserID(ctx context.Context, issueID, userID int64) (*Review, error) {
+	review := new(Review)
+
+	has, err := db.GetEngine(ctx).Where(
+		builder.In("type", ReviewTypeApprove, ReviewTypeReject, ReviewTypeRequest).
+			And(builder.Eq{"issue_id": issueID, "reviewer_id": userID, "original_author_id": 0})).
+		Desc("id").
+		Get(review)
+	if err != nil {
+		return nil, err
+	}
+
+	if !has {
+		return nil, ErrReviewNotExist{}
+	}
+
+	return review, nil
+}
+
+// GetTeamReviewerByIssueIDAndTeamID get the latest review request of reviewer team for a pull request
+func GetTeamReviewerByIssueIDAndTeamID(ctx context.Context, issueID, teamID int64) (*Review, error) {
+	review := new(Review)
+
+	has, err := db.GetEngine(ctx).Where(builder.Eq{"issue_id": issueID, "reviewer_team_id": teamID}).
+		Desc("id").
+		Get(review)
+	if err != nil {
+		return nil, err
+	}
+
+	if !has {
+		return nil, ErrReviewNotExist{0}
+	}
+
+	return review, err
+}
+
+// MarkReviewsAsStale marks existing reviews as stale
+func MarkReviewsAsStale(ctx context.Context, issueID int64) (err error) {
+	_, err = db.GetEngine(ctx).Exec("UPDATE `review` SET stale=? WHERE issue_id=?", true, issueID)
+
+	return err
+}
+
+// MarkReviewsAsNotStale marks existing reviews as not stale for a giving commit SHA
+func MarkReviewsAsNotStale(ctx context.Context, issueID int64, commitID string) (err error) {
+	_, err = db.GetEngine(ctx).Exec("UPDATE `review` SET stale=? WHERE issue_id=? AND commit_id=?", false, issueID, commitID)
+
+	return err
+}
+
+// DismissReview change the dismiss status of a review
+func DismissReview(ctx context.Context, review *Review, isDismiss bool) (err error) {
+	if review.Dismissed == isDismiss || (review.Type != ReviewTypeApprove && review.Type != ReviewTypeReject) {
+		return nil
+	}
+
+	review.Dismissed = isDismiss
+
+	if review.ID == 0 {
+		return ErrReviewNotExist{}
+	}
+
+	_, err = db.GetEngine(ctx).ID(review.ID).Cols("dismissed").Update(review)
+
+	return err
+}
+
+// InsertReviews inserts review and review comments
+func InsertReviews(ctx context.Context, reviews []*Review) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	for _, review := range reviews {
+		if _, err := sess.NoAutoTime().Insert(review); err != nil {
+			return err
+		}
+
+		if _, err := sess.NoAutoTime().Insert(&Comment{
+			Type:             CommentTypeReview,
+			Content:          review.Content,
+			PosterID:         review.ReviewerID,
+			OriginalAuthor:   review.OriginalAuthor,
+			OriginalAuthorID: review.OriginalAuthorID,
+			IssueID:          review.IssueID,
+			ReviewID:         review.ID,
+			CreatedUnix:      review.CreatedUnix,
+			UpdatedUnix:      review.UpdatedUnix,
+		}); err != nil {
+			return err
+		}
+
+		for _, c := range review.Comments {
+			c.ReviewID = review.ID
+		}
+
+		if len(review.Comments) > 0 {
+			if _, err := sess.NoAutoTime().Insert(review.Comments); err != nil {
+				return err
+			}
+		}
+	}
+
+	return committer.Commit()
+}
+
+// AddReviewRequest add a review request from one reviewer
+func AddReviewRequest(ctx context.Context, issue *Issue, reviewer, doer *user_model.User) (*Comment, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	review, err := GetReviewByIssueIDAndUserID(ctx, issue.ID, reviewer.ID)
+	if err != nil && !IsErrReviewNotExist(err) {
+		return nil, err
+	}
+
+	if review != nil {
+		// skip it when reviewer hase been request to review
+		if review.Type == ReviewTypeRequest {
+			return nil, committer.Commit() // still commit the transaction, or committer.Close() will rollback it, even if it's a reused transaction.
+		}
+
+		if issue.IsClosed {
+			return nil, ErrReviewRequestOnClosedPR{}
+		}
+
+		if issue.IsPull {
+			if err := issue.LoadPullRequest(ctx); err != nil {
+				return nil, err
+			}
+			if issue.PullRequest.HasMerged {
+				return nil, ErrReviewRequestOnClosedPR{}
+			}
+		}
+	}
+
+	// if the reviewer is an official reviewer,
+	// remove the official flag in the all previous reviews
+	official, err := IsOfficialReviewer(ctx, issue, reviewer)
+	if err != nil {
+		return nil, err
+	} else if official {
+		if _, err := sess.Exec("UPDATE `review` SET official=? WHERE issue_id=? AND reviewer_id=?", false, issue.ID, reviewer.ID); err != nil {
+			return nil, err
+		}
+	}
+
+	review, err = CreateReview(ctx, CreateReviewOptions{
+		Type:     ReviewTypeRequest,
+		Issue:    issue,
+		Reviewer: reviewer,
+		Official: official,
+		Stale:    false,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	comment, err := CreateComment(ctx, &CreateCommentOptions{
+		Type:            CommentTypeReviewRequest,
+		Doer:            doer,
+		Repo:            issue.Repo,
+		Issue:           issue,
+		RemovedAssignee: false,       // Use RemovedAssignee as !isRequest
+		AssigneeID:      reviewer.ID, // Use AssigneeID as reviewer ID
+		ReviewID:        review.ID,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	// func caller use the created comment to retrieve created review too.
+	comment.Review = review
+
+	return comment, committer.Commit()
+}
+
+// RemoveReviewRequest remove a review request from one reviewer
+func RemoveReviewRequest(ctx context.Context, issue *Issue, reviewer, doer *user_model.User) (*Comment, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	review, err := GetReviewByIssueIDAndUserID(ctx, issue.ID, reviewer.ID)
+	if err != nil && !IsErrReviewNotExist(err) {
+		return nil, err
+	}
+
+	if review == nil || review.Type != ReviewTypeRequest {
+		return nil, nil
+	}
+
+	if _, err = db.DeleteByBean(ctx, review); err != nil {
+		return nil, err
+	}
+
+	official, err := IsOfficialReviewer(ctx, issue, reviewer)
+	if err != nil {
+		return nil, err
+	} else if official {
+		if err := restoreLatestOfficialReview(ctx, issue.ID, reviewer.ID); err != nil {
+			return nil, err
+		}
+	}
+
+	comment, err := CreateComment(ctx, &CreateCommentOptions{
+		Type:            CommentTypeReviewRequest,
+		Doer:            doer,
+		Repo:            issue.Repo,
+		Issue:           issue,
+		RemovedAssignee: true,        // Use RemovedAssignee as !isRequest
+		AssigneeID:      reviewer.ID, // Use AssigneeID as reviewer ID
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return comment, committer.Commit()
+}
+
+// Recalculate the latest official review for reviewer
+func restoreLatestOfficialReview(ctx context.Context, issueID, reviewerID int64) error {
+	review, err := GetReviewByIssueIDAndUserID(ctx, issueID, reviewerID)
+	if err != nil && !IsErrReviewNotExist(err) {
+		return err
+	}
+
+	if review != nil {
+		if _, err := db.Exec(ctx, "UPDATE `review` SET official=? WHERE id=?", true, review.ID); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// AddTeamReviewRequest add a review request from one team
+func AddTeamReviewRequest(ctx context.Context, issue *Issue, reviewer *organization.Team, doer *user_model.User) (*Comment, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	review, err := GetTeamReviewerByIssueIDAndTeamID(ctx, issue.ID, reviewer.ID)
+	if err != nil && !IsErrReviewNotExist(err) {
+		return nil, err
+	}
+
+	// This team already has been requested to review - therefore skip this.
+	if review != nil {
+		return nil, nil
+	}
+
+	official, err := IsOfficialReviewerTeam(ctx, issue, reviewer)
+	if err != nil {
+		return nil, fmt.Errorf("isOfficialReviewerTeam(): %w", err)
+	} else if !official {
+		if official, err = IsOfficialReviewer(ctx, issue, doer); err != nil {
+			return nil, fmt.Errorf("isOfficialReviewer(): %w", err)
+		}
+	}
+
+	if review, err = CreateReview(ctx, CreateReviewOptions{
+		Type:         ReviewTypeRequest,
+		Issue:        issue,
+		ReviewerTeam: reviewer,
+		Official:     official,
+		Stale:        false,
+	}); err != nil {
+		return nil, err
+	}
+
+	if official {
+		if _, err := db.Exec(ctx, "UPDATE `review` SET official=? WHERE issue_id=? AND reviewer_team_id=?", false, issue.ID, reviewer.ID); err != nil {
+			return nil, err
+		}
+	}
+
+	comment, err := CreateComment(ctx, &CreateCommentOptions{
+		Type:            CommentTypeReviewRequest,
+		Doer:            doer,
+		Repo:            issue.Repo,
+		Issue:           issue,
+		RemovedAssignee: false,       // Use RemovedAssignee as !isRequest
+		AssigneeTeamID:  reviewer.ID, // Use AssigneeTeamID as reviewer team ID
+		ReviewID:        review.ID,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("CreateComment(): %w", err)
+	}
+
+	return comment, committer.Commit()
+}
+
+// RemoveTeamReviewRequest remove a review request from one team
+func RemoveTeamReviewRequest(ctx context.Context, issue *Issue, reviewer *organization.Team, doer *user_model.User) (*Comment, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	review, err := GetTeamReviewerByIssueIDAndTeamID(ctx, issue.ID, reviewer.ID)
+	if err != nil && !IsErrReviewNotExist(err) {
+		return nil, err
+	}
+
+	if review == nil {
+		return nil, nil
+	}
+
+	if _, err = db.DeleteByBean(ctx, review); err != nil {
+		return nil, err
+	}
+
+	official, err := IsOfficialReviewerTeam(ctx, issue, reviewer)
+	if err != nil {
+		return nil, fmt.Errorf("isOfficialReviewerTeam(): %w", err)
+	}
+
+	if official {
+		// recalculate which is the latest official review from that team
+		review, err := GetReviewByIssueIDAndUserID(ctx, issue.ID, -reviewer.ID)
+		if err != nil && !IsErrReviewNotExist(err) {
+			return nil, err
+		}
+
+		if review != nil {
+			if _, err := db.Exec(ctx, "UPDATE `review` SET official=? WHERE id=?", true, review.ID); err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	if doer == nil {
+		return nil, committer.Commit()
+	}
+
+	comment, err := CreateComment(ctx, &CreateCommentOptions{
+		Type:            CommentTypeReviewRequest,
+		Doer:            doer,
+		Repo:            issue.Repo,
+		Issue:           issue,
+		RemovedAssignee: true,        // Use RemovedAssignee as !isRequest
+		AssigneeTeamID:  reviewer.ID, // Use AssigneeTeamID as reviewer team ID
+	})
+	if err != nil {
+		return nil, fmt.Errorf("CreateComment(): %w", err)
+	}
+
+	return comment, committer.Commit()
+}
+
+// MarkConversation Add or remove Conversation mark for a code comment
+func MarkConversation(ctx context.Context, comment *Comment, doer *user_model.User, isResolve bool) (err error) {
+	if comment.Type != CommentTypeCode {
+		return nil
+	}
+
+	if isResolve {
+		if comment.ResolveDoerID != 0 {
+			return nil
+		}
+
+		if _, err = db.GetEngine(ctx).Exec("UPDATE `comment` SET resolve_doer_id=? WHERE id=?", doer.ID, comment.ID); err != nil {
+			return err
+		}
+	} else {
+		if comment.ResolveDoerID == 0 {
+			return nil
+		}
+
+		if _, err = db.GetEngine(ctx).Exec("UPDATE `comment` SET resolve_doer_id=? WHERE id=?", 0, comment.ID); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// CanMarkConversation  Add or remove Conversation mark for a code comment permission check
+// the PR writer , offfcial reviewer and poster can do it
+func CanMarkConversation(ctx context.Context, issue *Issue, doer *user_model.User) (permResult bool, err error) {
+	if doer == nil || issue == nil {
+		return false, fmt.Errorf("issue or doer is nil")
+	}
+
+	if doer.ID != issue.PosterID {
+		if err = issue.LoadRepo(ctx); err != nil {
+			return false, err
+		}
+
+		p, err := access_model.GetUserRepoPermission(ctx, issue.Repo, doer)
+		if err != nil {
+			return false, err
+		}
+
+		permResult = p.CanAccess(perm.AccessModeWrite, unit.TypePullRequests)
+		if !permResult {
+			if permResult, err = IsOfficialReviewer(ctx, issue, doer); err != nil {
+				return false, err
+			}
+		}
+
+		if !permResult {
+			return false, nil
+		}
+	}
+
+	return true, nil
+}
+
+// DeleteReview delete a review and it's code comments
+func DeleteReview(ctx context.Context, r *Review) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if r.ID == 0 {
+		return fmt.Errorf("review is not allowed to be 0")
+	}
+
+	if r.Type == ReviewTypeRequest {
+		return fmt.Errorf("review request can not be deleted using this method")
+	}
+
+	opts := FindCommentsOptions{
+		Type:     CommentTypeCode,
+		IssueID:  r.IssueID,
+		ReviewID: r.ID,
+	}
+
+	if _, err := db.Delete[Comment](ctx, opts); err != nil {
+		return err
+	}
+
+	opts = FindCommentsOptions{
+		Type:     CommentTypeReview,
+		IssueID:  r.IssueID,
+		ReviewID: r.ID,
+	}
+
+	if _, err := db.Delete[Comment](ctx, opts); err != nil {
+		return err
+	}
+
+	opts = FindCommentsOptions{
+		Type:     CommentTypeDismissReview,
+		IssueID:  r.IssueID,
+		ReviewID: r.ID,
+	}
+
+	if _, err := db.Delete[Comment](ctx, opts); err != nil {
+		return err
+	}
+
+	if _, err := db.DeleteByID[Review](ctx, r.ID); err != nil {
+		return err
+	}
+
+	if r.Official {
+		if err := restoreLatestOfficialReview(ctx, r.IssueID, r.ReviewerID); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
+
+// GetCodeCommentsCount return count of CodeComments a Review has
+func (r *Review) GetCodeCommentsCount(ctx context.Context) int {
+	opts := FindCommentsOptions{
+		Type:     CommentTypeCode,
+		IssueID:  r.IssueID,
+		ReviewID: r.ID,
+	}
+	conds := opts.ToConds()
+	if r.ID == 0 {
+		conds = conds.And(builder.Eq{"invalidated": false})
+	}
+
+	count, err := db.GetEngine(ctx).Where(conds).Count(new(Comment))
+	if err != nil {
+		return 0
+	}
+	return int(count)
+}
+
+// HTMLURL formats a URL-string to the related review issue-comment
+func (r *Review) HTMLURL(ctx context.Context) string {
+	opts := FindCommentsOptions{
+		Type:     CommentTypeReview,
+		IssueID:  r.IssueID,
+		ReviewID: r.ID,
+	}
+	comment := new(Comment)
+	has, err := db.GetEngine(ctx).Where(opts.ToConds()).Get(comment)
+	if err != nil || !has {
+		return ""
+	}
+	return comment.HTMLURL(ctx)
+}
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Review) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.ReviewerID = userID
+	return nil
+}
+
+// GetUserID ExternalUserRemappable interface
+func (r *Review) GetUserID() int64 { return r.ReviewerID }
+
+// GetExternalName ExternalUserRemappable interface
+func (r *Review) GetExternalName() string { return r.OriginalAuthor }
+
+// GetExternalID ExternalUserRemappable interface
+func (r *Review) GetExternalID() int64 { return r.OriginalAuthorID }
+
+// UpdateReviewsMigrationsByType updates reviews' migrations information via given git service type and original id and poster id
+func UpdateReviewsMigrationsByType(ctx context.Context, tp structs.GitServiceType, originalAuthorID string, posterID int64) error {
+	_, err := db.GetEngine(ctx).Table("review").
+		Where("original_author_id = ?", originalAuthorID).
+		And(migratedIssueCond(tp)).
+		Update(map[string]any{
+			"reviewer_id":        posterID,
+			"original_author":    "",
+			"original_author_id": 0,
+		})
+	return err
+}
diff --git a/models/issues/review_list.go b/models/issues/review_list.go
new file mode 100644
index 0000000..a5ceb21
--- /dev/null
+++ b/models/issues/review_list.go
@@ -0,0 +1,200 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	organization_model "code.gitea.io/gitea/models/organization"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+
+	"xorm.io/builder"
+)
+
+type ReviewList []*Review
+
+// LoadReviewers loads reviewers
+func (reviews ReviewList) LoadReviewers(ctx context.Context) error {
+	reviewerIDs := make([]int64, len(reviews))
+	for i := 0; i < len(reviews); i++ {
+		reviewerIDs[i] = reviews[i].ReviewerID
+	}
+	reviewers, err := user_model.GetPossibleUserByIDs(ctx, reviewerIDs)
+	if err != nil {
+		return err
+	}
+
+	userMap := make(map[int64]*user_model.User, len(reviewers))
+	for _, reviewer := range reviewers {
+		userMap[reviewer.ID] = reviewer
+	}
+	for _, review := range reviews {
+		review.Reviewer = userMap[review.ReviewerID]
+	}
+	return nil
+}
+
+// LoadReviewersTeams loads reviewers teams
+func (reviews ReviewList) LoadReviewersTeams(ctx context.Context) error {
+	reviewersTeamsIDs := make([]int64, 0)
+	for _, review := range reviews {
+		if review.ReviewerTeamID != 0 {
+			reviewersTeamsIDs = append(reviewersTeamsIDs, review.ReviewerTeamID)
+		}
+	}
+
+	teamsMap := make(map[int64]*organization_model.Team, 0)
+	for _, teamID := range reviewersTeamsIDs {
+		team, err := organization_model.GetTeamByID(ctx, teamID)
+		if err != nil {
+			return err
+		}
+
+		teamsMap[teamID] = team
+	}
+
+	for _, review := range reviews {
+		if review.ReviewerTeamID != 0 {
+			review.ReviewerTeam = teamsMap[review.ReviewerTeamID]
+		}
+	}
+
+	return nil
+}
+
+func (reviews ReviewList) LoadIssues(ctx context.Context) error {
+	issueIDs := container.FilterSlice(reviews, func(review *Review) (int64, bool) {
+		return review.IssueID, true
+	})
+
+	issues, err := GetIssuesByIDs(ctx, issueIDs)
+	if err != nil {
+		return err
+	}
+	if _, err := issues.LoadRepositories(ctx); err != nil {
+		return err
+	}
+	issueMap := make(map[int64]*Issue, len(issues))
+	for _, issue := range issues {
+		issueMap[issue.ID] = issue
+	}
+
+	for _, review := range reviews {
+		review.Issue = issueMap[review.IssueID]
+	}
+	return nil
+}
+
+// FindReviewOptions represent possible filters to find reviews
+type FindReviewOptions struct {
+	db.ListOptions
+	Types        []ReviewType
+	IssueID      int64
+	ReviewerID   int64
+	OfficialOnly bool
+	Dismissed    optional.Option[bool]
+}
+
+func (opts *FindReviewOptions) toCond() builder.Cond {
+	cond := builder.NewCond()
+	if opts.IssueID > 0 {
+		cond = cond.And(builder.Eq{"issue_id": opts.IssueID})
+	}
+	if opts.ReviewerID > 0 {
+		cond = cond.And(builder.Eq{"reviewer_id": opts.ReviewerID})
+	}
+	if len(opts.Types) > 0 {
+		cond = cond.And(builder.In("type", opts.Types))
+	}
+	if opts.OfficialOnly {
+		cond = cond.And(builder.Eq{"official": true})
+	}
+	if opts.Dismissed.Has() {
+		cond = cond.And(builder.Eq{"dismissed": opts.Dismissed.Value()})
+	}
+	return cond
+}
+
+// FindReviews returns reviews passing FindReviewOptions
+func FindReviews(ctx context.Context, opts FindReviewOptions) (ReviewList, error) {
+	reviews := make([]*Review, 0, 10)
+	sess := db.GetEngine(ctx).Where(opts.toCond())
+	if opts.Page > 0 && !opts.IsListAll() {
+		sess = db.SetSessionPagination(sess, &opts)
+	}
+	return reviews, sess.
+		Asc("created_unix").
+		Asc("id").
+		Find(&reviews)
+}
+
+// FindLatestReviews returns only latest reviews per user, passing FindReviewOptions
+func FindLatestReviews(ctx context.Context, opts FindReviewOptions) (ReviewList, error) {
+	reviews := make([]*Review, 0, 10)
+	cond := opts.toCond()
+	sess := db.GetEngine(ctx).Where(cond)
+	if opts.Page > 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+	}
+
+	sess.In("id", builder.
+		Select("max(id)").
+		From("review").
+		Where(cond).
+		GroupBy("reviewer_id"))
+
+	return reviews, sess.
+		Asc("created_unix").
+		Asc("id").
+		Find(&reviews)
+}
+
+// CountReviews returns count of reviews passing FindReviewOptions
+func CountReviews(ctx context.Context, opts FindReviewOptions) (int64, error) {
+	return db.GetEngine(ctx).Where(opts.toCond()).Count(&Review{})
+}
+
+// GetReviewersFromOriginalAuthorsByIssueID gets the latest review of each original authors for a pull request
+func GetReviewersFromOriginalAuthorsByIssueID(ctx context.Context, issueID int64) (ReviewList, error) {
+	reviews := make([]*Review, 0, 10)
+
+	// Get latest review of each reviewer, sorted in order they were made
+	if err := db.GetEngine(ctx).SQL("SELECT * FROM review WHERE id IN (SELECT max(id) as id FROM review WHERE issue_id = ? AND reviewer_team_id = 0 AND type in (?, ?, ?) AND original_author_id <> 0 GROUP BY issue_id, original_author_id) ORDER BY review.updated_unix ASC",
+		issueID, ReviewTypeApprove, ReviewTypeReject, ReviewTypeRequest).
+		Find(&reviews); err != nil {
+		return nil, err
+	}
+
+	return reviews, nil
+}
+
+// GetReviewsByIssueID gets the latest review of each reviewer for a pull request
+func GetReviewsByIssueID(ctx context.Context, issueID int64) (ReviewList, error) {
+	reviews := make([]*Review, 0, 10)
+
+	sess := db.GetEngine(ctx)
+
+	// Get latest review of each reviewer, sorted in order they were made
+	if err := sess.SQL("SELECT * FROM review WHERE id IN (SELECT max(id) as id FROM review WHERE issue_id = ? AND reviewer_team_id = 0 AND type in (?, ?, ?) AND dismissed = ? AND original_author_id = 0 GROUP BY issue_id, reviewer_id) ORDER BY review.updated_unix ASC",
+		issueID, ReviewTypeApprove, ReviewTypeReject, ReviewTypeRequest, false).
+		Find(&reviews); err != nil {
+		return nil, err
+	}
+
+	teamReviewRequests := make([]*Review, 0, 5)
+	if err := sess.SQL("SELECT * FROM review WHERE id IN (SELECT max(id) as id FROM review WHERE issue_id = ? AND reviewer_team_id <> 0 AND original_author_id = 0 GROUP BY issue_id, reviewer_team_id) ORDER BY review.updated_unix ASC",
+		issueID).
+		Find(&teamReviewRequests); err != nil {
+		return nil, err
+	}
+
+	if len(teamReviewRequests) > 0 {
+		reviews = append(reviews, teamReviewRequests...)
+	}
+
+	return reviews, nil
+}
diff --git a/models/issues/review_test.go b/models/issues/review_test.go
new file mode 100644
index 0000000..51cb940
--- /dev/null
+++ b/models/issues/review_test.go
@@ -0,0 +1,321 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetReviewByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	review, err := issues_model.GetReviewByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, "Demo Review", review.Content)
+	assert.Equal(t, issues_model.ReviewTypeApprove, review.Type)
+
+	_, err = issues_model.GetReviewByID(db.DefaultContext, 23892)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrReviewNotExist(err), "IsErrReviewNotExist")
+}
+
+func TestReview_LoadAttributes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	review := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 1})
+	require.NoError(t, review.LoadAttributes(db.DefaultContext))
+	assert.NotNil(t, review.Issue)
+	assert.NotNil(t, review.Reviewer)
+
+	invalidReview1 := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 2})
+	require.Error(t, invalidReview1.LoadAttributes(db.DefaultContext))
+
+	invalidReview2 := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 3})
+	require.Error(t, invalidReview2.LoadAttributes(db.DefaultContext))
+}
+
+func TestReview_LoadCodeComments(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	review := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 4})
+	require.NoError(t, review.LoadAttributes(db.DefaultContext))
+	require.NoError(t, review.LoadCodeComments(db.DefaultContext))
+	assert.Len(t, review.CodeComments, 1)
+	assert.Equal(t, int64(4), review.CodeComments["README.md"][int64(4)][0].Line)
+}
+
+func TestReviewType_Icon(t *testing.T) {
+	assert.Equal(t, "check", issues_model.ReviewTypeApprove.Icon())
+	assert.Equal(t, "diff", issues_model.ReviewTypeReject.Icon())
+	assert.Equal(t, "comment", issues_model.ReviewTypeComment.Icon())
+	assert.Equal(t, "comment", issues_model.ReviewTypeUnknown.Icon())
+	assert.Equal(t, "dot-fill", issues_model.ReviewTypeRequest.Icon())
+	assert.Equal(t, "comment", issues_model.ReviewType(6).Icon())
+}
+
+func TestFindReviews(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	reviews, err := issues_model.FindReviews(db.DefaultContext, issues_model.FindReviewOptions{
+		Types:      []issues_model.ReviewType{issues_model.ReviewTypeApprove},
+		IssueID:    2,
+		ReviewerID: 1,
+	})
+	require.NoError(t, err)
+	assert.Len(t, reviews, 1)
+	assert.Equal(t, "Demo Review", reviews[0].Content)
+}
+
+func TestFindLatestReviews(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	reviews, err := issues_model.FindLatestReviews(db.DefaultContext, issues_model.FindReviewOptions{
+		Types:   []issues_model.ReviewType{issues_model.ReviewTypeApprove},
+		IssueID: 11,
+	})
+	require.NoError(t, err)
+	assert.Len(t, reviews, 2)
+	assert.Equal(t, "duplicate review from user5 (latest)", reviews[0].Content)
+	assert.Equal(t, "singular review from org6 and final review for this pr", reviews[1].Content)
+}
+
+func TestGetCurrentReview(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	review, err := issues_model.GetCurrentReview(db.DefaultContext, user, issue)
+	require.NoError(t, err)
+	assert.NotNil(t, review)
+	assert.Equal(t, issues_model.ReviewTypePending, review.Type)
+	assert.Equal(t, "Pending Review", review.Content)
+
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 7})
+	review2, err := issues_model.GetCurrentReview(db.DefaultContext, user2, issue)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrReviewNotExist(err))
+	assert.Nil(t, review2)
+}
+
+func TestCreateReview(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	review, err := issues_model.CreateReview(db.DefaultContext, issues_model.CreateReviewOptions{
+		Content:  "New Review",
+		Type:     issues_model.ReviewTypePending,
+		Issue:    issue,
+		Reviewer: user,
+	})
+	require.NoError(t, err)
+	assert.Equal(t, "New Review", review.Content)
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Review{Content: "New Review"})
+}
+
+func TestGetReviewersByIssueID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 3})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+	user4 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+
+	expectedReviews := []*issues_model.Review{}
+	expectedReviews = append(expectedReviews,
+		&issues_model.Review{
+			Reviewer:    org3,
+			Type:        issues_model.ReviewTypeReject,
+			UpdatedUnix: 946684812,
+		},
+		&issues_model.Review{
+			Reviewer:    user4,
+			Type:        issues_model.ReviewTypeApprove,
+			UpdatedUnix: 946684813,
+		},
+		&issues_model.Review{
+			Reviewer:    user2,
+			Type:        issues_model.ReviewTypeReject,
+			UpdatedUnix: 946684814,
+		})
+
+	allReviews, err := issues_model.GetReviewsByIssueID(db.DefaultContext, issue.ID)
+	require.NoError(t, err)
+	for _, review := range allReviews {
+		require.NoError(t, review.LoadReviewer(db.DefaultContext))
+	}
+	if assert.Len(t, allReviews, 3) {
+		for i, review := range allReviews {
+			assert.Equal(t, expectedReviews[i].Reviewer, review.Reviewer)
+			assert.Equal(t, expectedReviews[i].Type, review.Type)
+			assert.Equal(t, expectedReviews[i].UpdatedUnix, review.UpdatedUnix)
+		}
+	}
+
+	allReviews, err = issues_model.GetReviewsByIssueID(db.DefaultContext, issue.ID)
+	require.NoError(t, err)
+	require.NoError(t, allReviews.LoadReviewers(db.DefaultContext))
+	if assert.Len(t, allReviews, 3) {
+		for i, review := range allReviews {
+			assert.Equal(t, expectedReviews[i].Reviewer, review.Reviewer)
+			assert.Equal(t, expectedReviews[i].Type, review.Type)
+			assert.Equal(t, expectedReviews[i].UpdatedUnix, review.UpdatedUnix)
+		}
+	}
+}
+
+func TestDismissReview(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	rejectReviewExample := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	approveReviewExample := unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 8})
+	assert.False(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, rejectReviewExample, true))
+	rejectReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	assert.True(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, requestReviewExample, true))
+	rejectReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	assert.True(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, requestReviewExample, true))
+	rejectReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	assert.True(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, requestReviewExample, false))
+	rejectReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	assert.True(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, requestReviewExample, false))
+	rejectReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 9})
+	requestReviewExample = unittest.AssertExistsAndLoadBean(t, &issues_model.Review{ID: 11})
+	assert.True(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, rejectReviewExample, false))
+	assert.False(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.False(t, approveReviewExample.Dismissed)
+
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, approveReviewExample, true))
+	assert.False(t, rejectReviewExample.Dismissed)
+	assert.False(t, requestReviewExample.Dismissed)
+	assert.True(t, approveReviewExample.Dismissed)
+}
+
+func TestDeleteReview(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	review1, err := issues_model.CreateReview(db.DefaultContext, issues_model.CreateReviewOptions{
+		Content:  "Official rejection",
+		Type:     issues_model.ReviewTypeReject,
+		Official: false,
+		Issue:    issue,
+		Reviewer: user,
+	})
+	require.NoError(t, err)
+
+	review2, err := issues_model.CreateReview(db.DefaultContext, issues_model.CreateReviewOptions{
+		Content:  "Official approval",
+		Type:     issues_model.ReviewTypeApprove,
+		Official: true,
+		Issue:    issue,
+		Reviewer: user,
+	})
+	require.NoError(t, err)
+
+	require.NoError(t, issues_model.DeleteReview(db.DefaultContext, review2))
+
+	_, err = issues_model.GetReviewByID(db.DefaultContext, review2.ID)
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrReviewNotExist(err), "IsErrReviewNotExist")
+
+	review1, err = issues_model.GetReviewByID(db.DefaultContext, review1.ID)
+	require.NoError(t, err)
+	assert.True(t, review1.Official)
+}
+
+func TestDeleteDismissedReview(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2})
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
+	review, err := issues_model.CreateReview(db.DefaultContext, issues_model.CreateReviewOptions{
+		Content:  "reject",
+		Type:     issues_model.ReviewTypeReject,
+		Official: false,
+		Issue:    issue,
+		Reviewer: user,
+	})
+	require.NoError(t, err)
+	require.NoError(t, issues_model.DismissReview(db.DefaultContext, review, true))
+	comment, err := issues_model.CreateComment(db.DefaultContext, &issues_model.CreateCommentOptions{
+		Type:     issues_model.CommentTypeDismissReview,
+		Doer:     user,
+		Repo:     repo,
+		Issue:    issue,
+		ReviewID: review.ID,
+		Content:  "dismiss",
+	})
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: comment.ID})
+	require.NoError(t, issues_model.DeleteReview(db.DefaultContext, review))
+	unittest.AssertNotExistsBean(t, &issues_model.Comment{ID: comment.ID})
+}
+
+func TestAddReviewRequest(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	pull := unittest.AssertExistsAndLoadBean(t, &issues_model.PullRequest{ID: 1})
+	require.NoError(t, pull.LoadIssue(db.DefaultContext))
+	issue := pull.Issue
+	require.NoError(t, issue.LoadRepo(db.DefaultContext))
+	reviewer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	_, err := issues_model.CreateReview(db.DefaultContext, issues_model.CreateReviewOptions{
+		Issue:    issue,
+		Reviewer: reviewer,
+		Type:     issues_model.ReviewTypeReject,
+	})
+
+	require.NoError(t, err)
+	pull.HasMerged = false
+	require.NoError(t, pull.UpdateCols(db.DefaultContext, "has_merged"))
+	issue.IsClosed = true
+	_, err = issues_model.AddReviewRequest(db.DefaultContext, issue, reviewer, &user_model.User{})
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrReviewRequestOnClosedPR(err))
+
+	pull.HasMerged = true
+	require.NoError(t, pull.UpdateCols(db.DefaultContext, "has_merged"))
+	issue.IsClosed = false
+	_, err = issues_model.AddReviewRequest(db.DefaultContext, issue, reviewer, &user_model.User{})
+	require.Error(t, err)
+	assert.True(t, issues_model.IsErrReviewRequestOnClosedPR(err))
+}
diff --git a/models/issues/stopwatch.go b/models/issues/stopwatch.go
new file mode 100644
index 0000000..93eaf88
--- /dev/null
+++ b/models/issues/stopwatch.go
@@ -0,0 +1,281 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrIssueStopwatchNotExist represents an error that stopwatch is not exist
+type ErrIssueStopwatchNotExist struct {
+	UserID  int64
+	IssueID int64
+}
+
+func (err ErrIssueStopwatchNotExist) Error() string {
+	return fmt.Sprintf("issue stopwatch doesn't exist[uid: %d, issue_id: %d", err.UserID, err.IssueID)
+}
+
+func (err ErrIssueStopwatchNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Stopwatch represents a stopwatch for time tracking.
+type Stopwatch struct {
+	ID          int64              `xorm:"pk autoincr"`
+	IssueID     int64              `xorm:"INDEX"`
+	UserID      int64              `xorm:"INDEX"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+func init() {
+	db.RegisterModel(new(Stopwatch))
+}
+
+// Seconds returns the amount of time passed since creation, based on local server time
+func (s Stopwatch) Seconds() int64 {
+	return int64(timeutil.TimeStampNow() - s.CreatedUnix)
+}
+
+// Duration returns a human-readable duration string based on local server time
+func (s Stopwatch) Duration() string {
+	return util.SecToTime(s.Seconds())
+}
+
+func getStopwatch(ctx context.Context, userID, issueID int64) (sw *Stopwatch, exists bool, err error) {
+	sw = new(Stopwatch)
+	exists, err = db.GetEngine(ctx).
+		Where("user_id = ?", userID).
+		And("issue_id = ?", issueID).
+		Get(sw)
+	return sw, exists, err
+}
+
+// GetUIDsAndNotificationCounts between the two provided times
+func GetUIDsAndStopwatch(ctx context.Context) (map[int64][]*Stopwatch, error) {
+	sws := []*Stopwatch{}
+	if err := db.GetEngine(ctx).Where("issue_id != 0").Find(&sws); err != nil {
+		return nil, err
+	}
+	res := map[int64][]*Stopwatch{}
+	if len(sws) == 0 {
+		return res, nil
+	}
+
+	for _, sw := range sws {
+		res[sw.UserID] = append(res[sw.UserID], sw)
+	}
+	return res, nil
+}
+
+// GetUserStopwatches return list of all stopwatches of a user
+func GetUserStopwatches(ctx context.Context, userID int64, listOptions db.ListOptions) ([]*Stopwatch, error) {
+	sws := make([]*Stopwatch, 0, 8)
+	sess := db.GetEngine(ctx).Where("stopwatch.user_id = ?", userID)
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+	}
+
+	err := sess.Find(&sws)
+	if err != nil {
+		return nil, err
+	}
+	return sws, nil
+}
+
+// CountUserStopwatches return count of all stopwatches of a user
+func CountUserStopwatches(ctx context.Context, userID int64) (int64, error) {
+	return db.GetEngine(ctx).Where("user_id = ?", userID).Count(&Stopwatch{})
+}
+
+// StopwatchExists returns true if the stopwatch exists
+func StopwatchExists(ctx context.Context, userID, issueID int64) bool {
+	_, exists, _ := getStopwatch(ctx, userID, issueID)
+	return exists
+}
+
+// HasUserStopwatch returns true if the user has a stopwatch
+func HasUserStopwatch(ctx context.Context, userID int64) (exists bool, sw *Stopwatch, issue *Issue, err error) {
+	type stopwatchIssueRepo struct {
+		Stopwatch       `xorm:"extends"`
+		Issue           `xorm:"extends"`
+		repo.Repository `xorm:"extends"`
+	}
+
+	swIR := new(stopwatchIssueRepo)
+	exists, err = db.GetEngine(ctx).
+		Table("stopwatch").
+		Where("user_id = ?", userID).
+		Join("INNER", "issue", "issue.id = stopwatch.issue_id").
+		Join("INNER", "repository", "repository.id = issue.repo_id").
+		Get(swIR)
+	if exists {
+		sw = &swIR.Stopwatch
+		issue = &swIR.Issue
+		issue.Repo = &swIR.Repository
+	}
+	return exists, sw, issue, err
+}
+
+// FinishIssueStopwatchIfPossible if stopwatch exist then finish it otherwise ignore
+func FinishIssueStopwatchIfPossible(ctx context.Context, user *user_model.User, issue *Issue) error {
+	_, exists, err := getStopwatch(ctx, user.ID, issue.ID)
+	if err != nil {
+		return err
+	}
+	if !exists {
+		return nil
+	}
+	return FinishIssueStopwatch(ctx, user, issue)
+}
+
+// CreateOrStopIssueStopwatch create an issue stopwatch if it's not exist, otherwise finish it
+func CreateOrStopIssueStopwatch(ctx context.Context, user *user_model.User, issue *Issue) error {
+	_, exists, err := getStopwatch(ctx, user.ID, issue.ID)
+	if err != nil {
+		return err
+	}
+	if exists {
+		return FinishIssueStopwatch(ctx, user, issue)
+	}
+	return CreateIssueStopwatch(ctx, user, issue)
+}
+
+// FinishIssueStopwatch if stopwatch exist then finish it otherwise return an error
+func FinishIssueStopwatch(ctx context.Context, user *user_model.User, issue *Issue) error {
+	sw, exists, err := getStopwatch(ctx, user.ID, issue.ID)
+	if err != nil {
+		return err
+	}
+	if !exists {
+		return ErrIssueStopwatchNotExist{
+			UserID:  user.ID,
+			IssueID: issue.ID,
+		}
+	}
+
+	// Create tracked time out of the time difference between start date and actual date
+	timediff := time.Now().Unix() - int64(sw.CreatedUnix)
+
+	// Create TrackedTime
+	tt := &TrackedTime{
+		Created: time.Now(),
+		IssueID: issue.ID,
+		UserID:  user.ID,
+		Time:    timediff,
+	}
+
+	if err := db.Insert(ctx, tt); err != nil {
+		return err
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if _, err := CreateComment(ctx, &CreateCommentOptions{
+		Doer:    user,
+		Issue:   issue,
+		Repo:    issue.Repo,
+		Content: util.SecToTime(timediff),
+		Type:    CommentTypeStopTracking,
+		TimeID:  tt.ID,
+	}); err != nil {
+		return err
+	}
+	_, err = db.DeleteByBean(ctx, sw)
+	return err
+}
+
+// CreateIssueStopwatch creates a stopwatch if not exist, otherwise return an error
+func CreateIssueStopwatch(ctx context.Context, user *user_model.User, issue *Issue) error {
+	if err := issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	// if another stopwatch is running: stop it
+	exists, _, otherIssue, err := HasUserStopwatch(ctx, user.ID)
+	if err != nil {
+		return err
+	}
+	if exists {
+		if err := FinishIssueStopwatch(ctx, user, otherIssue); err != nil {
+			return err
+		}
+	}
+
+	// Create stopwatch
+	sw := &Stopwatch{
+		UserID:  user.ID,
+		IssueID: issue.ID,
+	}
+
+	if err := db.Insert(ctx, sw); err != nil {
+		return err
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+
+	if _, err := CreateComment(ctx, &CreateCommentOptions{
+		Doer:  user,
+		Issue: issue,
+		Repo:  issue.Repo,
+		Type:  CommentTypeStartTracking,
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// CancelStopwatch removes the given stopwatch and logs it into issue's timeline.
+func CancelStopwatch(ctx context.Context, user *user_model.User, issue *Issue) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	if err := cancelStopwatch(ctx, user, issue); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func cancelStopwatch(ctx context.Context, user *user_model.User, issue *Issue) error {
+	e := db.GetEngine(ctx)
+	sw, exists, err := getStopwatch(ctx, user.ID, issue.ID)
+	if err != nil {
+		return err
+	}
+
+	if exists {
+		if _, err := e.Delete(sw); err != nil {
+			return err
+		}
+
+		if err := issue.LoadRepo(ctx); err != nil {
+			return err
+		}
+
+		if _, err := CreateComment(ctx, &CreateCommentOptions{
+			Doer:  user,
+			Issue: issue,
+			Repo:  issue.Repo,
+			Type:  CommentTypeCancelTracking,
+		}); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/models/issues/stopwatch_test.go b/models/issues/stopwatch_test.go
new file mode 100644
index 0000000..af86e8b
--- /dev/null
+++ b/models/issues/stopwatch_test.go
@@ -0,0 +1,119 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCancelStopwatch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1, err := user_model.GetUserByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	issue1, err := issues_model.GetIssueByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	issue2, err := issues_model.GetIssueByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+
+	err = issues_model.CancelStopwatch(db.DefaultContext, user1, issue1)
+	require.NoError(t, err)
+	unittest.AssertNotExistsBean(t, &issues_model.Stopwatch{UserID: user1.ID, IssueID: issue1.ID})
+
+	_ = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{Type: issues_model.CommentTypeCancelTracking, PosterID: user1.ID, IssueID: issue1.ID})
+
+	require.NoError(t, issues_model.CancelStopwatch(db.DefaultContext, user1, issue2))
+}
+
+func TestStopwatchExists(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	assert.True(t, issues_model.StopwatchExists(db.DefaultContext, 1, 1))
+	assert.False(t, issues_model.StopwatchExists(db.DefaultContext, 1, 2))
+}
+
+func TestHasUserStopwatch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	exists, sw, _, err := issues_model.HasUserStopwatch(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.True(t, exists)
+	assert.Equal(t, int64(1), sw.ID)
+
+	exists, _, _, err = issues_model.HasUserStopwatch(db.DefaultContext, 3)
+	require.NoError(t, err)
+	assert.False(t, exists)
+}
+
+func TestCreateOrStopIssueStopwatch(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user2, err := user_model.GetUserByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+	org3, err := user_model.GetUserByID(db.DefaultContext, 3)
+	require.NoError(t, err)
+
+	issue1, err := issues_model.GetIssueByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	issue2, err := issues_model.GetIssueByID(db.DefaultContext, 2)
+	require.NoError(t, err)
+
+	require.NoError(t, issues_model.CreateOrStopIssueStopwatch(db.DefaultContext, org3, issue1))
+	sw := unittest.AssertExistsAndLoadBean(t, &issues_model.Stopwatch{UserID: 3, IssueID: 1})
+	assert.LessOrEqual(t, sw.CreatedUnix, timeutil.TimeStampNow())
+
+	require.NoError(t, issues_model.CreateOrStopIssueStopwatch(db.DefaultContext, user2, issue2))
+	unittest.AssertNotExistsBean(t, &issues_model.Stopwatch{UserID: 2, IssueID: 2})
+	unittest.AssertExistsAndLoadBean(t, &issues_model.TrackedTime{UserID: 2, IssueID: 2})
+}
+
+func TestGetUIDsAndStopwatch(t *testing.T) {
+	defer unittest.OverrideFixtures(
+		unittest.FixturesOptions{
+			Dir:  filepath.Join(setting.AppWorkPath, "models/fixtures/"),
+			Base: setting.AppWorkPath,
+			Dirs: []string{"models/issues/TestGetUIDsAndStopwatch/"},
+		},
+	)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	uidStopwatches, err := issues_model.GetUIDsAndStopwatch(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, map[int64][]*issues_model.Stopwatch{
+		1: {
+			{
+				ID:          1,
+				UserID:      1,
+				IssueID:     1,
+				CreatedUnix: timeutil.TimeStamp(1500988001),
+			},
+			{
+				ID:          3,
+				UserID:      1,
+				IssueID:     2,
+				CreatedUnix: timeutil.TimeStamp(1500988004),
+			},
+		},
+		2: {
+			{
+				ID:          2,
+				UserID:      2,
+				IssueID:     2,
+				CreatedUnix: timeutil.TimeStamp(1500988002),
+			},
+		},
+	}, uidStopwatches)
+}
diff --git a/models/issues/tracked_time.go b/models/issues/tracked_time.go
new file mode 100644
index 0000000..caa582a
--- /dev/null
+++ b/models/issues/tracked_time.go
@@ -0,0 +1,386 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// TrackedTime represents a time that was spent for a specific issue.
+type TrackedTime struct {
+	ID          int64            `xorm:"pk autoincr"`
+	IssueID     int64            `xorm:"INDEX"`
+	Issue       *Issue           `xorm:"-"`
+	UserID      int64            `xorm:"INDEX"`
+	User        *user_model.User `xorm:"-"`
+	Created     time.Time        `xorm:"-"`
+	CreatedUnix int64            `xorm:"created"`
+	Time        int64            `xorm:"NOT NULL"`
+	Deleted     bool             `xorm:"NOT NULL DEFAULT false"`
+}
+
+func init() {
+	db.RegisterModel(new(TrackedTime))
+}
+
+// TrackedTimeList is a List of TrackedTime's
+type TrackedTimeList []*TrackedTime
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (t *TrackedTime) AfterLoad() {
+	t.Created = time.Unix(t.CreatedUnix, 0).In(setting.DefaultUILocation)
+}
+
+// LoadAttributes load Issue, User
+func (t *TrackedTime) LoadAttributes(ctx context.Context) (err error) {
+	// Load the issue
+	if t.Issue == nil {
+		t.Issue, err = GetIssueByID(ctx, t.IssueID)
+		if err != nil && !errors.Is(err, util.ErrNotExist) {
+			return err
+		}
+	}
+	// Now load the repo for the issue (which we may have just loaded)
+	if t.Issue != nil {
+		err = t.Issue.LoadRepo(ctx)
+		if err != nil && !errors.Is(err, util.ErrNotExist) {
+			return err
+		}
+	}
+	// Load the user
+	if t.User == nil {
+		t.User, err = user_model.GetUserByID(ctx, t.UserID)
+		if err != nil {
+			if !errors.Is(err, util.ErrNotExist) {
+				return err
+			}
+			t.User = user_model.NewGhostUser()
+		}
+	}
+	return nil
+}
+
+// LoadAttributes load Issue, User
+func (tl TrackedTimeList) LoadAttributes(ctx context.Context) error {
+	for _, t := range tl {
+		if err := t.LoadAttributes(ctx); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// FindTrackedTimesOptions represent the filters for tracked times. If an ID is 0 it will be ignored.
+type FindTrackedTimesOptions struct {
+	db.ListOptions
+	IssueID           int64
+	UserID            int64
+	RepositoryID      int64
+	MilestoneID       int64
+	CreatedAfterUnix  int64
+	CreatedBeforeUnix int64
+}
+
+// toCond will convert each condition into a xorm-Cond
+func (opts *FindTrackedTimesOptions) ToConds() builder.Cond {
+	cond := builder.NewCond().And(builder.Eq{"tracked_time.deleted": false})
+	if opts.IssueID != 0 {
+		cond = cond.And(builder.Eq{"issue_id": opts.IssueID})
+	}
+	if opts.UserID != 0 {
+		cond = cond.And(builder.Eq{"user_id": opts.UserID})
+	}
+	if opts.RepositoryID != 0 {
+		cond = cond.And(builder.Eq{"issue.repo_id": opts.RepositoryID})
+	}
+	if opts.MilestoneID != 0 {
+		cond = cond.And(builder.Eq{"issue.milestone_id": opts.MilestoneID})
+	}
+	if opts.CreatedAfterUnix != 0 {
+		cond = cond.And(builder.Gte{"tracked_time.created_unix": opts.CreatedAfterUnix})
+	}
+	if opts.CreatedBeforeUnix != 0 {
+		cond = cond.And(builder.Lte{"tracked_time.created_unix": opts.CreatedBeforeUnix})
+	}
+	return cond
+}
+
+func (opts *FindTrackedTimesOptions) ToJoins() []db.JoinFunc {
+	if opts.RepositoryID > 0 || opts.MilestoneID > 0 {
+		return []db.JoinFunc{
+			func(e db.Engine) error {
+				e.Join("INNER", "issue", "issue.id = tracked_time.issue_id")
+				return nil
+			},
+		}
+	}
+	return nil
+}
+
+// toSession will convert the given options to a xorm Session by using the conditions from toCond and joining with issue table if required
+func (opts *FindTrackedTimesOptions) toSession(e db.Engine) db.Engine {
+	sess := e
+	if opts.RepositoryID > 0 || opts.MilestoneID > 0 {
+		sess = e.Join("INNER", "issue", "issue.id = tracked_time.issue_id")
+	}
+
+	sess = sess.Where(opts.ToConds())
+
+	if opts.Page != 0 {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	return sess
+}
+
+// GetTrackedTimes returns all tracked times that fit to the given options.
+func GetTrackedTimes(ctx context.Context, options *FindTrackedTimesOptions) (trackedTimes TrackedTimeList, err error) {
+	err = options.toSession(db.GetEngine(ctx)).Find(&trackedTimes)
+	return trackedTimes, err
+}
+
+// CountTrackedTimes returns count of tracked times that fit to the given options.
+func CountTrackedTimes(ctx context.Context, opts *FindTrackedTimesOptions) (int64, error) {
+	sess := db.GetEngine(ctx).Where(opts.ToConds())
+	if opts.RepositoryID > 0 || opts.MilestoneID > 0 {
+		sess = sess.Join("INNER", "issue", "issue.id = tracked_time.issue_id")
+	}
+	return sess.Count(&TrackedTime{})
+}
+
+// GetTrackedSeconds return sum of seconds
+func GetTrackedSeconds(ctx context.Context, opts FindTrackedTimesOptions) (trackedSeconds int64, err error) {
+	return opts.toSession(db.GetEngine(ctx)).SumInt(&TrackedTime{}, "time")
+}
+
+// AddTime will add the given time (in seconds) to the issue
+func AddTime(ctx context.Context, user *user_model.User, issue *Issue, amount int64, created time.Time) (*TrackedTime, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	t, err := addTime(ctx, user, issue, amount, created)
+	if err != nil {
+		return nil, err
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return nil, err
+	}
+
+	if _, err := CreateComment(ctx, &CreateCommentOptions{
+		Issue: issue,
+		Repo:  issue.Repo,
+		Doer:  user,
+		// Content before v1.21 did store the formatted string instead of seconds,
+		// so use "|" as delimiter to mark the new format
+		Content: fmt.Sprintf("|%d", amount),
+		Type:    CommentTypeAddTimeManual,
+		TimeID:  t.ID,
+	}); err != nil {
+		return nil, err
+	}
+
+	return t, committer.Commit()
+}
+
+func addTime(ctx context.Context, user *user_model.User, issue *Issue, amount int64, created time.Time) (*TrackedTime, error) {
+	if created.IsZero() {
+		created = time.Now()
+	}
+	tt := &TrackedTime{
+		IssueID: issue.ID,
+		UserID:  user.ID,
+		Time:    amount,
+		Created: created,
+	}
+	return tt, db.Insert(ctx, tt)
+}
+
+// TotalTimesForEachUser returns the spent time in seconds for each user by an issue
+func TotalTimesForEachUser(ctx context.Context, options *FindTrackedTimesOptions) (map[*user_model.User]int64, error) {
+	trackedTimes, err := GetTrackedTimes(ctx, options)
+	if err != nil {
+		return nil, err
+	}
+	// Adding total time per user ID
+	totalTimesByUser := make(map[int64]int64)
+	for _, t := range trackedTimes {
+		totalTimesByUser[t.UserID] += t.Time
+	}
+
+	totalTimes := make(map[*user_model.User]int64)
+	// Fetching User and making time human readable
+	for userID, total := range totalTimesByUser {
+		user, err := user_model.GetUserByID(ctx, userID)
+		if err != nil {
+			if user_model.IsErrUserNotExist(err) {
+				continue
+			}
+			return nil, err
+		}
+		totalTimes[user] = total
+	}
+	return totalTimes, nil
+}
+
+// DeleteIssueUserTimes deletes times for issue
+func DeleteIssueUserTimes(ctx context.Context, issue *Issue, user *user_model.User) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	opts := FindTrackedTimesOptions{
+		IssueID: issue.ID,
+		UserID:  user.ID,
+	}
+
+	removedTime, err := deleteTimes(ctx, opts)
+	if err != nil {
+		return err
+	}
+	if removedTime == 0 {
+		return db.ErrNotExist{Resource: "tracked_time"}
+	}
+
+	if err := issue.LoadRepo(ctx); err != nil {
+		return err
+	}
+	if _, err := CreateComment(ctx, &CreateCommentOptions{
+		Issue: issue,
+		Repo:  issue.Repo,
+		Doer:  user,
+		// Content before v1.21 did store the formatted string instead of seconds,
+		// so use "|" as delimiter to mark the new format
+		Content: fmt.Sprintf("|%d", removedTime),
+		Type:    CommentTypeDeleteTimeManual,
+	}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// DeleteTime delete a specific Time
+func DeleteTime(ctx context.Context, t *TrackedTime) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := t.LoadAttributes(ctx); err != nil {
+		return err
+	}
+
+	if err := deleteTime(ctx, t); err != nil {
+		return err
+	}
+
+	if _, err := CreateComment(ctx, &CreateCommentOptions{
+		Issue: t.Issue,
+		Repo:  t.Issue.Repo,
+		Doer:  t.User,
+		// Content before v1.21 did store the formatted string instead of seconds,
+		// so use "|" as delimiter to mark the new format
+		Content: fmt.Sprintf("|%d", t.Time),
+		Type:    CommentTypeDeleteTimeManual,
+	}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func deleteTimes(ctx context.Context, opts FindTrackedTimesOptions) (removedTime int64, err error) {
+	removedTime, err = GetTrackedSeconds(ctx, opts)
+	if err != nil || removedTime == 0 {
+		return removedTime, err
+	}
+
+	_, err = opts.toSession(db.GetEngine(ctx)).Table("tracked_time").Cols("deleted").Update(&TrackedTime{Deleted: true})
+	return removedTime, err
+}
+
+func deleteTime(ctx context.Context, t *TrackedTime) error {
+	if t.Deleted {
+		return db.ErrNotExist{Resource: "tracked_time", ID: t.ID}
+	}
+	t.Deleted = true
+	_, err := db.GetEngine(ctx).ID(t.ID).Cols("deleted").Update(t)
+	return err
+}
+
+// GetTrackedTimeByID returns raw TrackedTime without loading attributes by id
+func GetTrackedTimeByID(ctx context.Context, id int64) (*TrackedTime, error) {
+	time := new(TrackedTime)
+	has, err := db.GetEngine(ctx).ID(id).Get(time)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, db.ErrNotExist{Resource: "tracked_time", ID: id}
+	}
+	return time, nil
+}
+
+// GetIssueTotalTrackedTime returns the total tracked time for issues by given conditions.
+func GetIssueTotalTrackedTime(ctx context.Context, opts *IssuesOptions, isClosed optional.Option[bool]) (int64, error) {
+	if len(opts.IssueIDs) <= MaxQueryParameters {
+		return getIssueTotalTrackedTimeChunk(ctx, opts, isClosed, opts.IssueIDs)
+	}
+
+	// If too long a list of IDs is provided,
+	// we get the statistics in smaller chunks and get accumulates
+	var accum int64
+	for i := 0; i < len(opts.IssueIDs); {
+		chunk := i + MaxQueryParameters
+		if chunk > len(opts.IssueIDs) {
+			chunk = len(opts.IssueIDs)
+		}
+		time, err := getIssueTotalTrackedTimeChunk(ctx, opts, isClosed, opts.IssueIDs[i:chunk])
+		if err != nil {
+			return 0, err
+		}
+		accum += time
+		i = chunk
+	}
+	return accum, nil
+}
+
+func getIssueTotalTrackedTimeChunk(ctx context.Context, opts *IssuesOptions, isClosed optional.Option[bool], issueIDs []int64) (int64, error) {
+	sumSession := func(opts *IssuesOptions, issueIDs []int64) *xorm.Session {
+		sess := db.GetEngine(ctx).
+			Table("tracked_time").
+			Where("tracked_time.deleted = ?", false).
+			Join("INNER", "issue", "tracked_time.issue_id = issue.id")
+
+		return applyIssuesOptions(sess, opts, issueIDs)
+	}
+
+	type trackedTime struct {
+		Time int64
+	}
+
+	session := sumSession(opts, issueIDs)
+	if isClosed.Has() {
+		session = session.And("issue.is_closed = ?", isClosed.Value())
+	}
+	return session.SumInt(new(trackedTime), "tracked_time.time")
+}
diff --git a/models/issues/tracked_time_test.go b/models/issues/tracked_time_test.go
new file mode 100644
index 0000000..4d4e232
--- /dev/null
+++ b/models/issues/tracked_time_test.go
@@ -0,0 +1,135 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package issues_test
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAddTime(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	org3, err := user_model.GetUserByID(db.DefaultContext, 3)
+	require.NoError(t, err)
+
+	issue1, err := issues_model.GetIssueByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	// 3661 = 1h 1min 1s
+	trackedTime, err := issues_model.AddTime(db.DefaultContext, org3, issue1, 3661, time.Now())
+	require.NoError(t, err)
+	assert.Equal(t, int64(3), trackedTime.UserID)
+	assert.Equal(t, int64(1), trackedTime.IssueID)
+	assert.Equal(t, int64(3661), trackedTime.Time)
+
+	tt := unittest.AssertExistsAndLoadBean(t, &issues_model.TrackedTime{UserID: 3, IssueID: 1})
+	assert.Equal(t, int64(3661), tt.Time)
+
+	comment := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{Type: issues_model.CommentTypeAddTimeManual, PosterID: 3, IssueID: 1})
+	assert.Equal(t, "|3661", comment.Content)
+}
+
+func TestGetTrackedTimes(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// by Issue
+	times, err := issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: 1})
+	require.NoError(t, err)
+	assert.Len(t, times, 1)
+	assert.Equal(t, int64(400), times[0].Time)
+
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: -1})
+	require.NoError(t, err)
+	assert.Empty(t, times)
+
+	// by User
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{UserID: 1})
+	require.NoError(t, err)
+	assert.Len(t, times, 3)
+	assert.Equal(t, int64(400), times[0].Time)
+
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{UserID: 3})
+	require.NoError(t, err)
+	assert.Empty(t, times)
+
+	// by Repo
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{RepositoryID: 2})
+	require.NoError(t, err)
+	assert.Len(t, times, 3)
+	assert.Equal(t, int64(1), times[0].Time)
+	issue, err := issues_model.GetIssueByID(db.DefaultContext, times[0].IssueID)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), issue.RepoID)
+
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{RepositoryID: 1})
+	require.NoError(t, err)
+	assert.Len(t, times, 5)
+
+	times, err = issues_model.GetTrackedTimes(db.DefaultContext, &issues_model.FindTrackedTimesOptions{RepositoryID: 10})
+	require.NoError(t, err)
+	assert.Empty(t, times)
+}
+
+func TestTotalTimesForEachUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	total, err := issues_model.TotalTimesForEachUser(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: 1})
+	require.NoError(t, err)
+	assert.Len(t, total, 1)
+	for user, time := range total {
+		assert.EqualValues(t, 1, user.ID)
+		assert.EqualValues(t, 400, time)
+	}
+
+	total, err = issues_model.TotalTimesForEachUser(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: 2})
+	require.NoError(t, err)
+	assert.Len(t, total, 2)
+	for user, time := range total {
+		if user.ID == 2 {
+			assert.EqualValues(t, 3662, time)
+		} else if user.ID == 1 {
+			assert.EqualValues(t, 20, time)
+		} else {
+			require.Error(t, assert.AnError)
+		}
+	}
+
+	total, err = issues_model.TotalTimesForEachUser(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: 5})
+	require.NoError(t, err)
+	assert.Len(t, total, 1)
+	for user, time := range total {
+		assert.EqualValues(t, 2, user.ID)
+		assert.EqualValues(t, 1, time)
+	}
+
+	total, err = issues_model.TotalTimesForEachUser(db.DefaultContext, &issues_model.FindTrackedTimesOptions{IssueID: 4})
+	require.NoError(t, err)
+	assert.Len(t, total, 2)
+}
+
+func TestGetIssueTotalTrackedTime(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	ttt, err := issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, optional.Some(false))
+	require.NoError(t, err)
+	assert.EqualValues(t, 3682, ttt)
+
+	ttt, err = issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, optional.Some(true))
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, ttt)
+
+	ttt, err = issues_model.GetIssueTotalTrackedTime(db.DefaultContext, &issues_model.IssuesOptions{MilestoneIDs: []int64{1}}, optional.None[bool]())
+	require.NoError(t, err)
+	assert.EqualValues(t, 3682, ttt)
+}
diff --git a/models/main_test.go b/models/main_test.go
new file mode 100644
index 0000000..a694130
--- /dev/null
+++ b/models/main_test.go
@@ -0,0 +1,33 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"testing"
+
+	activities_model "code.gitea.io/gitea/models/activities"
+	"code.gitea.io/gitea/models/organization"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/system"
+
+	"github.com/stretchr/testify/require"
+)
+
+// TestFixturesAreConsistent assert that test fixtures are consistent
+func TestFixturesAreConsistent(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	unittest.CheckConsistencyFor(t,
+		&user_model.User{},
+		&repo_model.Repository{},
+		&organization.Team{},
+		&activities_model.Action{})
+}
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/migrations/base/db.go b/models/migrations/base/db.go
new file mode 100644
index 0000000..333fa31
--- /dev/null
+++ b/models/migrations/base/db.go
@@ -0,0 +1,436 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+// RecreateTables will recreate the tables for the provided beans using the newly provided bean definition and move all data to that new table
+// WARNING: YOU MUST PROVIDE THE FULL BEAN DEFINITION
+func RecreateTables(beans ...any) func(*xorm.Engine) error {
+	return func(x *xorm.Engine) error {
+		sess := x.NewSession()
+		defer sess.Close()
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		sess = sess.StoreEngine("InnoDB")
+		for _, bean := range beans {
+			log.Info("Recreating Table: %s for Bean: %s", x.TableName(bean), reflect.Indirect(reflect.ValueOf(bean)).Type().Name())
+			if err := RecreateTable(sess, bean); err != nil {
+				return err
+			}
+		}
+		return sess.Commit()
+	}
+}
+
+// RecreateTable will recreate the table using the newly provided bean definition and move all data to that new table
+// WARNING: YOU MUST PROVIDE THE FULL BEAN DEFINITION
+// WARNING: YOU MUST COMMIT THE SESSION AT THE END
+func RecreateTable(sess *xorm.Session, bean any) error {
+	// TODO: This will not work if there are foreign keys
+
+	tableName := sess.Engine().TableName(bean)
+	tempTableName := fmt.Sprintf("tmp_recreate__%s", tableName)
+
+	// We need to move the old table away and create a new one with the correct columns
+	// We will need to do this in stages to prevent data loss
+	//
+	// First create the temporary table
+	if err := sess.Table(tempTableName).CreateTable(bean); err != nil {
+		log.Error("Unable to create table %s. Error: %v", tempTableName, err)
+		return err
+	}
+
+	if err := sess.Table(tempTableName).CreateUniques(bean); err != nil {
+		log.Error("Unable to create uniques for table %s. Error: %v", tempTableName, err)
+		return err
+	}
+
+	if err := sess.Table(tempTableName).CreateIndexes(bean); err != nil {
+		log.Error("Unable to create indexes for table %s. Error: %v", tempTableName, err)
+		return err
+	}
+
+	// Work out the column names from the bean - these are the columns to select from the old table and install into the new table
+	table, err := sess.Engine().TableInfo(bean)
+	if err != nil {
+		log.Error("Unable to get table info. Error: %v", err)
+
+		return err
+	}
+	newTableColumns := table.Columns()
+	if len(newTableColumns) == 0 {
+		return fmt.Errorf("no columns in new table")
+	}
+	hasID := false
+	for _, column := range newTableColumns {
+		hasID = hasID || (column.IsPrimaryKey && column.IsAutoIncrement)
+	}
+
+	sqlStringBuilder := &strings.Builder{}
+	_, _ = sqlStringBuilder.WriteString("INSERT INTO `")
+	_, _ = sqlStringBuilder.WriteString(tempTableName)
+	_, _ = sqlStringBuilder.WriteString("` (`")
+	_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+	_, _ = sqlStringBuilder.WriteString("`")
+	for _, column := range newTableColumns[1:] {
+		_, _ = sqlStringBuilder.WriteString(", `")
+		_, _ = sqlStringBuilder.WriteString(column.Name)
+		_, _ = sqlStringBuilder.WriteString("`")
+	}
+	_, _ = sqlStringBuilder.WriteString(")")
+	_, _ = sqlStringBuilder.WriteString(" SELECT ")
+	if newTableColumns[0].Default != "" {
+		_, _ = sqlStringBuilder.WriteString("COALESCE(`")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+		_, _ = sqlStringBuilder.WriteString("`, ")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Default)
+		_, _ = sqlStringBuilder.WriteString(")")
+	} else {
+		_, _ = sqlStringBuilder.WriteString("`")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+		_, _ = sqlStringBuilder.WriteString("`")
+	}
+
+	for _, column := range newTableColumns[1:] {
+		if column.Default != "" {
+			_, _ = sqlStringBuilder.WriteString(", COALESCE(`")
+			_, _ = sqlStringBuilder.WriteString(column.Name)
+			_, _ = sqlStringBuilder.WriteString("`, ")
+			_, _ = sqlStringBuilder.WriteString(column.Default)
+			_, _ = sqlStringBuilder.WriteString(")")
+		} else {
+			_, _ = sqlStringBuilder.WriteString(", `")
+			_, _ = sqlStringBuilder.WriteString(column.Name)
+			_, _ = sqlStringBuilder.WriteString("`")
+		}
+	}
+	_, _ = sqlStringBuilder.WriteString(" FROM `")
+	_, _ = sqlStringBuilder.WriteString(tableName)
+	_, _ = sqlStringBuilder.WriteString("`")
+
+	if _, err := sess.Exec(sqlStringBuilder.String()); err != nil {
+		log.Error("Unable to set copy data in to temp table %s. Error: %v", tempTableName, err)
+		return err
+	}
+
+	switch {
+	case setting.Database.Type.IsSQLite3():
+		// SQLite will drop all the constraints on the old table
+		if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
+			log.Error("Unable to drop old table %s. Error: %v", tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tempTableName).DropIndexes(bean); err != nil {
+			log.Error("Unable to drop indexes on temporary table %s. Error: %v", tempTableName, err)
+			return err
+		}
+
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` RENAME TO `%s`", tempTableName, tableName)); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tableName).CreateIndexes(bean); err != nil {
+			log.Error("Unable to recreate indexes on table %s. Error: %v", tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tableName).CreateUniques(bean); err != nil {
+			log.Error("Unable to recreate uniques on table %s. Error: %v", tableName, err)
+			return err
+		}
+
+	case setting.Database.Type.IsMySQL():
+		// MySQL will drop all the constraints on the old table
+		if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
+			log.Error("Unable to drop old table %s. Error: %v", tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tempTableName).DropIndexes(bean); err != nil {
+			log.Error("Unable to drop indexes on temporary table %s. Error: %v", tempTableName, err)
+			return err
+		}
+
+		// SQLite and MySQL will move all the constraints from the temporary table to the new table
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` RENAME TO `%s`", tempTableName, tableName)); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tableName).CreateIndexes(bean); err != nil {
+			log.Error("Unable to recreate indexes on table %s. Error: %v", tableName, err)
+			return err
+		}
+
+		if err := sess.Table(tableName).CreateUniques(bean); err != nil {
+			log.Error("Unable to recreate uniques on table %s. Error: %v", tableName, err)
+			return err
+		}
+	case setting.Database.Type.IsPostgreSQL():
+		var originalSequences []string
+		type sequenceData struct {
+			LastValue int  `xorm:"'last_value'"`
+			IsCalled  bool `xorm:"'is_called'"`
+		}
+		sequenceMap := map[string]sequenceData{}
+
+		schema := sess.Engine().Dialect().URI().Schema
+		sess.Engine().SetSchema("")
+		if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE ? || '_%' AND sequence_catalog = ?", tableName, setting.Database.Name).Find(&originalSequences); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+		sess.Engine().SetSchema(schema)
+
+		for _, sequence := range originalSequences {
+			sequenceData := sequenceData{}
+			if _, err := sess.Table(sequence).Cols("last_value", "is_called").Get(&sequenceData); err != nil {
+				log.Error("Unable to get last_value and is_called from %s. Error: %v", sequence, err)
+				return err
+			}
+			sequenceMap[sequence] = sequenceData
+		}
+
+		// CASCADE causes postgres to drop all the constraints on the old table
+		if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s` CASCADE", tableName)); err != nil {
+			log.Error("Unable to drop old table %s. Error: %v", tableName, err)
+			return err
+		}
+
+		// CASCADE causes postgres to move all the constraints from the temporary table to the new table
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` RENAME TO `%s`", tempTableName, tableName)); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+
+		var indices []string
+		sess.Engine().SetSchema("")
+		if err := sess.Table("pg_indexes").Cols("indexname").Where("tablename = ? ", tableName).Find(&indices); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+		sess.Engine().SetSchema(schema)
+
+		for _, index := range indices {
+			newIndexName := strings.Replace(index, "tmp_recreate__", "", 1)
+			if _, err := sess.Exec(fmt.Sprintf("ALTER INDEX `%s` RENAME TO `%s`", index, newIndexName)); err != nil {
+				log.Error("Unable to rename %s to %s. Error: %v", index, newIndexName, err)
+				return err
+			}
+		}
+
+		var sequences []string
+		sess.Engine().SetSchema("")
+		if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__' || ? || '_%' AND sequence_catalog = ?", tableName, setting.Database.Name).Find(&sequences); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+			return err
+		}
+		sess.Engine().SetSchema(schema)
+
+		for _, sequence := range sequences {
+			newSequenceName := strings.Replace(sequence, "tmp_recreate__", "", 1)
+			if _, err := sess.Exec(fmt.Sprintf("ALTER SEQUENCE `%s` RENAME TO `%s`", sequence, newSequenceName)); err != nil {
+				log.Error("Unable to rename %s sequence to %s. Error: %v", sequence, newSequenceName, err)
+				return err
+			}
+			val, ok := sequenceMap[newSequenceName]
+			if newSequenceName == tableName+"_id_seq" {
+				if ok && val.LastValue != 0 {
+					if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', %d, %t)", newSequenceName, val.LastValue, val.IsCalled)); err != nil {
+						log.Error("Unable to reset %s to %d. Error: %v", newSequenceName, val, err)
+						return err
+					}
+				} else {
+					// We're going to try to guess this
+					if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', COALESCE((SELECT MAX(id)+1 FROM `%s`), 1), false)", newSequenceName, tableName)); err != nil {
+						log.Error("Unable to reset %s. Error: %v", newSequenceName, err)
+						return err
+					}
+				}
+			} else if ok {
+				if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', %d, %t)", newSequenceName, val.LastValue, val.IsCalled)); err != nil {
+					log.Error("Unable to reset %s to %d. Error: %v", newSequenceName, val, err)
+					return err
+				}
+			}
+		}
+
+	default:
+		log.Fatal("Unrecognized DB")
+	}
+	return nil
+}
+
+// WARNING: YOU MUST COMMIT THE SESSION AT THE END
+func DropTableColumns(sess *xorm.Session, tableName string, columnNames ...string) (err error) {
+	if tableName == "" || len(columnNames) == 0 {
+		return nil
+	}
+	// TODO: This will not work if there are foreign keys
+
+	switch {
+	case setting.Database.Type.IsSQLite3():
+		// First drop the indexes on the columns
+		res, errIndex := sess.Query(fmt.Sprintf("PRAGMA index_list(`%s`)", tableName))
+		if errIndex != nil {
+			return errIndex
+		}
+		for _, row := range res {
+			indexName := row["name"]
+			indexRes, err := sess.Query(fmt.Sprintf("PRAGMA index_info(`%s`)", indexName))
+			if err != nil {
+				return err
+			}
+			if len(indexRes) != 1 {
+				continue
+			}
+			indexColumn := string(indexRes[0]["name"])
+			for _, name := range columnNames {
+				if name == indexColumn {
+					_, err := sess.Exec(fmt.Sprintf("DROP INDEX `%s`", indexName))
+					if err != nil {
+						return err
+					}
+				}
+			}
+		}
+
+		// Here we need to get the columns from the original table
+		sql := fmt.Sprintf("SELECT sql FROM sqlite_master WHERE tbl_name='%s' and type='table'", tableName)
+		res, err := sess.Query(sql)
+		if err != nil {
+			return err
+		}
+		tableSQL := string(res[0]["sql"])
+
+		// Get the string offset for column definitions: `CREATE TABLE ( column-definitions... )`
+		columnDefinitionsIndex := strings.Index(tableSQL, "(")
+		if columnDefinitionsIndex < 0 {
+			return errors.New("couldn't find column definitions")
+		}
+
+		// Separate out the column definitions
+		tableSQL = tableSQL[columnDefinitionsIndex:]
+
+		// Remove the required columnNames
+		for _, name := range columnNames {
+			tableSQL = regexp.MustCompile(regexp.QuoteMeta("`"+name+"`")+"[^`,)]*?[,)]").ReplaceAllString(tableSQL, "")
+		}
+
+		// Ensure the query is ended properly
+		tableSQL = strings.TrimSpace(tableSQL)
+		if tableSQL[len(tableSQL)-1] != ')' {
+			if tableSQL[len(tableSQL)-1] == ',' {
+				tableSQL = tableSQL[:len(tableSQL)-1]
+			}
+			tableSQL += ")"
+		}
+
+		// Find all the columns in the table
+		columns := regexp.MustCompile("`([^`]*)`").FindAllString(tableSQL, -1)
+
+		tableSQL = fmt.Sprintf("CREATE TABLE `new_%s_new` ", tableName) + tableSQL
+		if _, err := sess.Exec(tableSQL); err != nil {
+			return err
+		}
+
+		// Now restore the data
+		columnsSeparated := strings.Join(columns, ",")
+		insertSQL := fmt.Sprintf("INSERT INTO `new_%s_new` (%s) SELECT %s FROM %s", tableName, columnsSeparated, columnsSeparated, tableName)
+		if _, err := sess.Exec(insertSQL); err != nil {
+			return err
+		}
+
+		// Now drop the old table
+		if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
+			return err
+		}
+
+		// Rename the table
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `new_%s_new` RENAME TO `%s`", tableName, tableName)); err != nil {
+			return err
+		}
+
+	case setting.Database.Type.IsPostgreSQL():
+		cols := ""
+		for _, col := range columnNames {
+			if cols != "" {
+				cols += ", "
+			}
+			cols += "DROP COLUMN `" + col + "` CASCADE"
+		}
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, cols)); err != nil {
+			return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
+		}
+	case setting.Database.Type.IsMySQL():
+		// Drop indexes on columns first
+		sql := fmt.Sprintf("SHOW INDEX FROM %s WHERE column_name IN ('%s')", tableName, strings.Join(columnNames, "','"))
+		res, err := sess.Query(sql)
+		if err != nil {
+			return err
+		}
+		for _, index := range res {
+			indexName := index["column_name"]
+			if len(indexName) > 0 {
+				_, err := sess.Exec(fmt.Sprintf("DROP INDEX `%s` ON `%s`", indexName, tableName))
+				if err != nil {
+					return err
+				}
+			}
+		}
+
+		// Now drop the columns
+		cols := ""
+		for _, col := range columnNames {
+			if cols != "" {
+				cols += ", "
+			}
+			cols += "DROP COLUMN `" + col + "`"
+		}
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, cols)); err != nil {
+			return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
+		}
+	default:
+		log.Fatal("Unrecognized DB")
+	}
+
+	return nil
+}
+
+// ModifyColumn will modify column's type or other property. SQLITE is not supported
+func ModifyColumn(x *xorm.Engine, tableName string, col *schemas.Column) error {
+	var indexes map[string]*schemas.Index
+	var err error
+
+	defer func() {
+		for _, index := range indexes {
+			_, err = x.Exec(x.Dialect().CreateIndexSQL(tableName, index))
+			if err != nil {
+				log.Error("Create index %s on table %s failed: %v", index.Name, tableName, err)
+			}
+		}
+	}()
+
+	alterSQL := x.Dialect().ModifyColumnSQL(tableName, col)
+	if _, err := x.Exec(alterSQL); err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/models/migrations/base/db_test.go b/models/migrations/base/db_test.go
new file mode 100644
index 0000000..4010a14
--- /dev/null
+++ b/models/migrations/base/db_test.go
@@ -0,0 +1,98 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+	"testing"
+
+	migrations_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm/names"
+)
+
+func Test_DropTableColumns(t *testing.T) {
+	x, deferable := migrations_tests.PrepareTestEnv(t, 0)
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	type DropTest struct {
+		ID            int64 `xorm:"pk autoincr"`
+		FirstColumn   string
+		ToDropColumn  string `xorm:"unique"`
+		AnotherColumn int64
+		CreatedUnix   timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix   timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	columns := []string{
+		"first_column",
+		"to_drop_column",
+		"another_column",
+		"created_unix",
+		"updated_unix",
+	}
+
+	x.SetMapper(names.GonicMapper{})
+
+	for i := range columns {
+		if err := x.Sync(new(DropTest)); err != nil {
+			t.Errorf("unable to create DropTest table: %v", err)
+			return
+		}
+
+		sess := x.NewSession()
+		if err := sess.Begin(); err != nil {
+			sess.Close()
+			t.Errorf("unable to begin transaction: %v", err)
+			return
+		}
+		if err := DropTableColumns(sess, "drop_test", columns[i:]...); err != nil {
+			sess.Close()
+			t.Errorf("Unable to drop columns[%d:]: %s from drop_test: %v", i, columns[i:], err)
+			return
+		}
+		if err := sess.Commit(); err != nil {
+			sess.Close()
+			t.Errorf("unable to commit transaction: %v", err)
+			return
+		}
+		sess.Close()
+		if err := x.DropTables(new(DropTest)); err != nil {
+			t.Errorf("unable to drop table: %v", err)
+			return
+		}
+		for j := range columns[i+1:] {
+			if err := x.Sync(new(DropTest)); err != nil {
+				t.Errorf("unable to create DropTest table: %v", err)
+				return
+			}
+			dropcols := append([]string{columns[i]}, columns[j+i+1:]...)
+			sess := x.NewSession()
+			if err := sess.Begin(); err != nil {
+				sess.Close()
+				t.Errorf("unable to begin transaction: %v", err)
+				return
+			}
+			if err := DropTableColumns(sess, "drop_test", dropcols...); err != nil {
+				sess.Close()
+				t.Errorf("Unable to drop columns: %s from drop_test: %v", dropcols, err)
+				return
+			}
+			if err := sess.Commit(); err != nil {
+				sess.Close()
+				t.Errorf("unable to commit transaction: %v", err)
+				return
+			}
+			sess.Close()
+			if err := x.DropTables(new(DropTest)); err != nil {
+				t.Errorf("unable to drop table: %v", err)
+				return
+			}
+		}
+	}
+}
diff --git a/models/migrations/base/hash.go b/models/migrations/base/hash.go
new file mode 100644
index 0000000..00fd1ef
--- /dev/null
+++ b/models/migrations/base/hash.go
@@ -0,0 +1,16 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+
+	"golang.org/x/crypto/pbkdf2"
+)
+
+func HashToken(token, salt string) string {
+	tempHash := pbkdf2.Key([]byte(token), []byte(salt), 10000, 50, sha256.New)
+	return hex.EncodeToString(tempHash)
+}
diff --git a/models/migrations/base/main_test.go b/models/migrations/base/main_test.go
new file mode 100644
index 0000000..c625ef0
--- /dev/null
+++ b/models/migrations/base/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package base
+
+import (
+	"testing"
+
+	migrations_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migrations_tests.MainTest(m)
+}
diff --git a/models/migrations/fixtures/Test_AddCombinedIndexToIssueUser/issue_user.yml b/models/migrations/fixtures/Test_AddCombinedIndexToIssueUser/issue_user.yml
new file mode 100644
index 0000000..b9995ac
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddCombinedIndexToIssueUser/issue_user.yml
@@ -0,0 +1,13 @@
+-
+  id: 1
+  uid: 1
+  issue_id: 1
+  is_read: true
+  is_mentioned: false
+
+-
+  id: 2
+  uid: 2
+  issue_id: 1
+  is_read: true
+  is_mentioned: false
diff --git a/models/migrations/fixtures/Test_AddConfidentialClientColumnToOAuth2ApplicationTable/oauth2_application.yml b/models/migrations/fixtures/Test_AddConfidentialClientColumnToOAuth2ApplicationTable/oauth2_application.yml
new file mode 100644
index 0000000..a88c2ef
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddConfidentialClientColumnToOAuth2ApplicationTable/oauth2_application.yml
@@ -0,0 +1,2 @@
+-
+  id: 1
diff --git a/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/expected_webhook.yml b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/expected_webhook.yml
new file mode 100644
index 0000000..f623999
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/expected_webhook.yml
@@ -0,0 +1,9 @@
+# for matrix, the access_token has been moved to "header_authorization"
+-
+  id: 1
+  meta: '{"homeserver_url":"https://matrix.example.com","room_id":"roomID","message_type":1}'
+  header_authorization: "Bearer s3cr3t"
+-
+  id: 2
+  meta: ''
+  header_authorization: ""
diff --git a/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/hook_task.yml b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/hook_task.yml
new file mode 100644
index 0000000..8f61d6e
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/hook_task.yml
@@ -0,0 +1,8 @@
+# unsafe payload
+- id: 1
+  hook_id: 1
+  payload_content: '{"homeserver_url":"https://matrix.example.com","room_id":"roomID","access_token":"s3cr3t","message_type":1}'
+# safe payload
+- id: 2
+  hook_id: 2
+  payload_content: '{"homeserver_url":"https://matrix.example.com","room_id":"roomID","message_type":1}'
diff --git a/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/webhook.yml b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/webhook.yml
new file mode 100644
index 0000000..ec6f9bf
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddHeaderAuthorizationEncryptedColWebhook/webhook.yml
@@ -0,0 +1,10 @@
+# matrix webhook
+- id: 1
+  type: matrix
+  meta: '{"homeserver_url":"https://matrix.example.com","room_id":"roomID","access_token":"s3cr3t","message_type":1}'
+  header_authorization_encrypted: ''
+# gitea webhook
+- id: 2
+  type: gitea
+  meta: ''
+  header_authorization_encrypted: ''
diff --git a/models/migrations/fixtures/Test_AddIssueResourceIndexTable/issue.yml b/models/migrations/fixtures/Test_AddIssueResourceIndexTable/issue.yml
new file mode 100644
index 0000000..f95d479
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddIssueResourceIndexTable/issue.yml
@@ -0,0 +1,4 @@
+-
+  id: 1
+  repo_id: 1
+  index: 1
diff --git a/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task.yml b/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task.yml
new file mode 100644
index 0000000..716a2a0
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task.yml
@@ -0,0 +1,16 @@
+- id: 11
+  uuid: uuid11
+  hook_id: 1
+  payload_content: >
+    {"data":"payload"}
+  event_type: create
+  delivered: 1706106005
+
+- id: 101
+  uuid: uuid101
+  hook_id: 1
+  payload_content: >
+    {"data":"payload"}
+  event_type: create
+  delivered: 1706106006
+  is_delivered: true
diff --git a/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task_migrated.yml b/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task_migrated.yml
new file mode 100644
index 0000000..913d927
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddPayloadVersionToHookTaskTable/hook_task_migrated.yml
@@ -0,0 +1,18 @@
+- id: 11
+  uuid: uuid11
+  hook_id: 1
+  payload_content: >
+    {"data":"payload"}
+  event_type: create
+  delivered: 1706106005
+  payload_version: 1
+
+- id: 101
+  uuid: uuid101
+  hook_id: 1
+  payload_content: >
+    {"data":"payload"}
+  event_type: create
+  delivered: 1706106006
+  is_delivered: true
+  payload_version: 1
diff --git a/models/migrations/fixtures/Test_AddRepoIDForAttachment/attachment.yml b/models/migrations/fixtures/Test_AddRepoIDForAttachment/attachment.yml
new file mode 100644
index 0000000..056236b
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddRepoIDForAttachment/attachment.yml
@@ -0,0 +1,11 @@
+-
+  id: 1
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11
+  issue_id: 1
+  release_id: 0
+
+-
+  id: 2
+  uuid: a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a12
+  issue_id: 0
+  release_id: 1
diff --git a/models/migrations/fixtures/Test_AddRepoIDForAttachment/issue.yml b/models/migrations/fixtures/Test_AddRepoIDForAttachment/issue.yml
new file mode 100644
index 0000000..7f32550
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddRepoIDForAttachment/issue.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  repo_id: 1
diff --git a/models/migrations/fixtures/Test_AddRepoIDForAttachment/release.yml b/models/migrations/fixtures/Test_AddRepoIDForAttachment/release.yml
new file mode 100644
index 0000000..7f32550
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddRepoIDForAttachment/release.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  repo_id: 1
diff --git a/models/migrations/fixtures/Test_AddUniqueIndexForProjectIssue/project_issue.yml b/models/migrations/fixtures/Test_AddUniqueIndexForProjectIssue/project_issue.yml
new file mode 100644
index 0000000..6feaeb3
--- /dev/null
+++ b/models/migrations/fixtures/Test_AddUniqueIndexForProjectIssue/project_issue.yml
@@ -0,0 +1,9 @@
+-
+  id: 1
+  project_id: 1
+  issue_id: 1
+
+-
+  id: 2
+  project_id: 1
+  issue_id: 1
diff --git a/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project.yml b/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project.yml
new file mode 100644
index 0000000..2450d20
--- /dev/null
+++ b/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project.yml
@@ -0,0 +1,23 @@
+-
+  id: 1
+  title: project without default column
+  owner_id: 2
+  repo_id: 0
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973000
+  updated_unix: 1688973000
+
+-
+  id: 2
+  title: project with multiple default columns
+  owner_id: 2
+  repo_id: 0
+  is_closed: false
+  creator_id: 2
+  board_type: 1
+  type: 2
+  created_unix: 1688973000
+  updated_unix: 1688973000
diff --git a/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project_board.yml b/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project_board.yml
new file mode 100644
index 0000000..2e1b1c7
--- /dev/null
+++ b/models/migrations/fixtures/Test_CheckProjectColumnsConsistency/project_board.yml
@@ -0,0 +1,26 @@
+-
+  id: 1
+  project_id: 1
+  title: Done
+  creator_id: 2
+  default: false
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 2
+  project_id: 2
+  title: Backlog
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
+
+-
+  id: 3
+  project_id: 2
+  title: Uncategorized
+  creator_id: 2
+  default: true
+  created_unix: 1588117528
+  updated_unix: 1588117528
diff --git a/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/issue_label.yml b/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/issue_label.yml
new file mode 100644
index 0000000..b02cb57
--- /dev/null
+++ b/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/issue_label.yml
@@ -0,0 +1,28 @@
+# Issue_Label 1 should not be deleted
+-
+  id: 1
+  issue_id: 1
+  label_id: 1
+
+# Issue_label 2 should be deleted
+-
+  id: 2
+  issue_id: 5
+  label_id: 99
+
+# Issue_Label 3 should not be deleted
+-
+  id: 3
+  issue_id: 2
+  label_id: 1
+
+# Issue_Label 4 should not be deleted
+-
+  id: 4
+  issue_id: 2
+  label_id: 4
+
+-
+  id: 5
+  issue_id: 2
+  label_id: 87
diff --git a/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/label.yml b/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/label.yml
new file mode 100644
index 0000000..fa9658a
--- /dev/null
+++ b/models/migrations/fixtures/Test_DeleteOrphanedIssueLabels/label.yml
@@ -0,0 +1,43 @@
+-
+  id: 1
+  repo_id: 1
+  org_id: 0
+  name: label1
+  color: '#abcdef'
+  num_issues: 2
+  num_closed_issues: 0
+
+-
+  id: 2
+  repo_id: 1
+  org_id: 0
+  name: label2
+  color: '#000000'
+  num_issues: 1
+  num_closed_issues: 1
+-
+  id: 3
+  repo_id: 0
+  org_id: 3
+  name: orglabel3
+  color: '#abcdef'
+  num_issues: 0
+  num_closed_issues: 0
+
+-
+  id: 4
+  repo_id: 0
+  org_id: 3
+  name: orglabel4
+  color: '#000000'
+  num_issues: 1
+  num_closed_issues: 0
+
+-
+  id: 5
+  repo_id: 10
+  org_id: 0
+  name: pull-test-label
+  color: '#000000'
+  num_issues: 0
+  num_closed_issues: 0
diff --git a/models/migrations/fixtures/Test_RemigrateU2FCredentials/expected_webauthn_credential.yml b/models/migrations/fixtures/Test_RemigrateU2FCredentials/expected_webauthn_credential.yml
new file mode 100644
index 0000000..0e68a5d
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemigrateU2FCredentials/expected_webauthn_credential.yml
@@ -0,0 +1,12 @@
+-
+  id: 1
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+-
+  id: 2
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+-
+  id: 3
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+-
+  id: 4
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
diff --git a/models/migrations/fixtures/Test_RemigrateU2FCredentials/u2f_registration.yml b/models/migrations/fixtures/Test_RemigrateU2FCredentials/u2f_registration.yml
new file mode 100644
index 0000000..5a7b70f
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemigrateU2FCredentials/u2f_registration.yml
@@ -0,0 +1,21 @@
+-
+  id: 1
+  name: "u2fkey-correctly-migrated"
+  user_id: 1
+  raw: 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
+  counter: 0
+- id: 2
+  name: "u2fkey-incorrectly-migrated"
+  user_id: 1
+  raw: 0x05040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf240efe2e213b889daf3fc88e3952e8dd6b4cfd82f1a1212e2ab4b19389455ecf3e67f0aeafc91b9c0d413c9d6215a45177c1d5076358aa6ee20e1b30e3d7467cae2308202bd308201a5a00302010202041e8f8734300d06092a864886f70d01010b0500302e312c302a0603550403132359756269636f2055324620526f6f742043412053657269616c203435373230303633313020170d3134303830313030303030305a180f32303530303930343030303030305a306e310b300906035504061302534531123010060355040a0c0959756269636f20414231223020060355040b0c1941757468656e74696361746f72204174746573746174696f6e3127302506035504030c1e59756269636f205532462045452053657269616c203531323732323734303059301306072a8648ce3d020106082a8648ce3d03010703420004a879f82338ed1494bac0704bcc7fc663d1b271715976243101c7605115d7c1529e281c1c67322d384b5cd55dd3e9818d5fd85c22af326e0c64fc20afe33f2366a36c306a302206092b0601040182c40a020415312e332e362e312e342e312e34313438322e312e373013060b2b0601040182e51c0201010404030204303021060b2b0601040182e51c010104041204102fc0579f811347eab116bb5a8db9202a300c0603551d130101ff04023000300d06092a864886f70d01010b050003820101008693ff62df0d5779d4748d7fc8d10227318a8e580e6a3a57c108e94e03c38568b366894fce5624be4a3efd7f34118b3d993743f792a1989160c8fc9ae0b04e3df9ee15e3e88c04fc82a8dcbf5818e108dcc2968577ae79ff662b94734e3dec4597305d73e6e55ee2beb9cd9678ca0935e533eb638f8e26fabb817cda441fbe9831832ae5f6e2ad992f9ebbdb4c62238b8f8d7ab481d6d3263bcdbf9e4a57550370988ad5813440fa032cadb6723cadd8f8d7ba809f75b43cffa0a5b9add14232ef9d9e14812638233c4ca4a873b9f8ac98e32ba19167606e15909fcddb4a2dffbdae4620249f9a6646ac81e4832d1119febfaa731a882da25a77827d46d190173046022100b579338a44c236d3f214b2e150011a08cf251193ecfae2244edb0a5794e9b301022100fab468862c47d98204d437cf2be8c54a5a4ecd1ebb1c61a6c23da7b9c75f6841
+  counter: 0
+- id: 3
+  name: "u2fkey-deleted"
+  user_id: 1
+  raw: 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
+  counter: 0
+- id: 4
+  name: "u2fkey-wrong-user-id"
+  user_id: 2
+  raw: 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
+  counter: 0
diff --git a/models/migrations/fixtures/Test_RemigrateU2FCredentials/webauthn_credential.yml b/models/migrations/fixtures/Test_RemigrateU2FCredentials/webauthn_credential.yml
new file mode 100644
index 0000000..7f9f10f
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemigrateU2FCredentials/webauthn_credential.yml
@@ -0,0 +1,30 @@
+-
+  id: 1
+  lower_name: "u2fkey-correctly-migrated"
+  name: "u2fkey-correctly-migrated"
+  user_id: 1
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'fido-u2f'
+  sign_count: 1
+  clone_warning: false
+-
+  id: 2
+  lower_name: "u2fkey-incorrectly-migrated"
+  name: "u2fkey-incorrectly-migrated"
+  user_id: 1
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8A"
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'fido-u2f'
+  sign_count: 1
+  clone_warning: false
+-
+  id: 4
+  lower_name: "u2fkey-wrong-user-id"
+  name: "u2fkey-wrong-user-id"
+  user_id: 1
+  credential_id: "THIS SHOULD CHANGE"
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'fido-u2f'
+  sign_count: 1
+  clone_warning: false
diff --git a/models/migrations/fixtures/Test_RemoveInvalidLabels/comment.yml b/models/migrations/fixtures/Test_RemoveInvalidLabels/comment.yml
new file mode 100644
index 0000000..4f44e29
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveInvalidLabels/comment.yml
@@ -0,0 +1,52 @@
+# type Comment struct {
+#   ID      int64 `xorm:"pk autoincr"`
+#   Type    int   `xorm:"INDEX"`
+#   IssueID int64 `xorm:"INDEX"`
+#   LabelID int64
+# }
+#
+# we are only interested in type 7
+#
+
+-
+  id: 1 # Should remain
+  type: 6
+  issue_id: 1
+  label_id: 0
+  should_remain: true
+-
+  id: 2 # Should remain
+  type: 7
+  issue_id: 1 # repo_id: 1
+  label_id: 1 # repo_id: 1
+  should_remain: true
+-
+  id: 3 # Should remain
+  type: 7
+  issue_id: 2 # repo_id: 2 owner_id: 1
+  label_id: 2 # org_id: 1
+  should_remain: true
+-
+  id: 4 # Should be DELETED
+  type: 7
+  issue_id: 1 # repo_id: 1
+  label_id: 3 # repo_id: 2
+  should_remain: false
+-
+  id: 5 # Should remain
+  type: 7
+  issue_id: 3 # repo_id: 1
+  label_id: 1 # repo_id: 1
+  should_remain: true
+-
+  id: 6 # Should be DELETED
+  type: 7
+  issue_id: 3 # repo_id: 1 owner_id: 2
+  label_id: 2 # org_id: 1
+  should_remain: false
+-
+  id: 7 # Should be DELETED
+  type: 7
+  issue_id: 3 # repo_id: 1 owner_id: 2
+  label_id: 5 # repo_id: 3
+  should_remain: false
diff --git a/models/migrations/fixtures/Test_RemoveInvalidLabels/issue.yml b/models/migrations/fixtures/Test_RemoveInvalidLabels/issue.yml
new file mode 100644
index 0000000..46ad46c
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveInvalidLabels/issue.yml
@@ -0,0 +1,21 @@
+# type Issue struct {
+#   ID     int64 `xorm:"pk autoincr"`
+#   RepoID int64 `xorm:"INDEX UNIQUE(repo_index)"`
+#   Index  int64 `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+# }
+-
+  id: 1
+  repo_id: 1
+  index: 1
+-
+  id: 2
+  repo_id: 2
+  index: 1
+-
+  id: 3
+  repo_id: 1
+  index: 2
+-
+  id: 4
+  repo_id: 3
+  index: 1
diff --git a/models/migrations/fixtures/Test_RemoveInvalidLabels/issue_label.yml b/models/migrations/fixtures/Test_RemoveInvalidLabels/issue_label.yml
new file mode 100644
index 0000000..5f5b8cb
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveInvalidLabels/issue_label.yml
@@ -0,0 +1,35 @@
+# type IssueLabel struct {
+#   ID      int64 `xorm:"pk autoincr"`
+#   IssueID int64 `xorm:"UNIQUE(s)"`
+#   LabelID int64 `xorm:"UNIQUE(s)"`
+# }
+-
+  id: 1 # Should remain - matches comment 2
+  issue_id: 1
+  label_id: 1
+  should_remain: true
+-
+  id: 2 # Should remain
+  issue_id: 2
+  label_id: 2
+  should_remain: true
+-
+  id: 3 # Should be deleted
+  issue_id: 1
+  label_id: 3
+  should_remain: false
+-
+  id: 4 # Should remain
+  issue_id: 3
+  label_id: 1
+  should_remain: true
+-
+  id: 5 # Should be deleted
+  issue_id: 3
+  label_id: 2
+  should_remain: false
+-
+  id: 6 # Should be deleted
+  issue_id: 3
+  label_id: 5
+  should_remain: false
diff --git a/models/migrations/fixtures/Test_RemoveInvalidLabels/label.yml b/models/migrations/fixtures/Test_RemoveInvalidLabels/label.yml
new file mode 100644
index 0000000..0f5a3eb
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveInvalidLabels/label.yml
@@ -0,0 +1,25 @@
+# type Label struct {
+#   ID     int64 `xorm:"pk autoincr"`
+#   RepoID int64 `xorm:"INDEX"`
+#   OrgID  int64 `xorm:"INDEX"`
+# }
+-
+  id: 1
+  repo_id: 1
+  org_id: 0
+-
+  id: 2
+  repo_id: 0
+  org_id: 1
+-
+  id: 3
+  repo_id: 2
+  org_id: 0
+-
+  id: 4
+  repo_id: 1
+  org_id: 0
+-
+  id: 5
+  repo_id: 3
+  org_id: 0
diff --git a/models/migrations/fixtures/Test_RemoveInvalidLabels/repository.yml b/models/migrations/fixtures/Test_RemoveInvalidLabels/repository.yml
new file mode 100644
index 0000000..180f11b
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveInvalidLabels/repository.yml
@@ -0,0 +1,17 @@
+# type Repository struct {
+#   ID        int64  `xorm:"pk autoincr"`
+#   OwnerID   int64  `xorm:"UNIQUE(s) index"`
+#   LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+# }
+-
+  id: 1
+  owner_id: 2
+  lower_name: "repo1"
+-
+  id: 2
+  owner_id: 1
+  lower_name: "repo2"
+-
+  id: 3
+  owner_id: 2
+  lower_name: "repo3"
diff --git a/models/migrations/fixtures/Test_RemoveSSHSignaturesFromReleaseNotes/release.yml b/models/migrations/fixtures/Test_RemoveSSHSignaturesFromReleaseNotes/release.yml
new file mode 100644
index 0000000..caa0b40
--- /dev/null
+++ b/models/migrations/fixtures/Test_RemoveSSHSignaturesFromReleaseNotes/release.yml
@@ -0,0 +1,22 @@
+# type Release struct {
+#   ID   int64  `xorm:"pk autoincr"`
+#   Note string `xorm:"TEXT"`
+# }
+-
+  id: 1
+  note: |
+    -----BEGIN SSH SIGNATURE-----
+    some signature
+    -----END SSH SIGNATURE-----
+
+-
+  id: 2
+  note: |
+    A message.
+    -----BEGIN SSH SIGNATURE-----
+    some signature
+    -----END SSH SIGNATURE-----
+
+-
+  id: 3
+  note: "no signature present here"
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/comment.yml b/models/migrations/fixtures/Test_RepositoryFormat/comment.yml
new file mode 100644
index 0000000..1197b08
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/comment.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/commit_status.yml b/models/migrations/fixtures/Test_RepositoryFormat/commit_status.yml
new file mode 100644
index 0000000..ca0aaec
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/commit_status.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  context_hash: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/pull_request.yml b/models/migrations/fixtures/Test_RepositoryFormat/pull_request.yml
new file mode 100644
index 0000000..380cc07
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/pull_request.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d
+  merge_base: 19fe5caf872476db265596eaac1dc35ad1c6422d
+  merged_commit_id: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/release.yml b/models/migrations/fixtures/Test_RepositoryFormat/release.yml
new file mode 100644
index 0000000..ffabe4a
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/release.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  sha1: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/repo_archiver.yml b/models/migrations/fixtures/Test_RepositoryFormat/repo_archiver.yml
new file mode 100644
index 0000000..f04cb3b
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/repo_archiver.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_id: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/repo_indexer_status.yml b/models/migrations/fixtures/Test_RepositoryFormat/repo_indexer_status.yml
new file mode 100644
index 0000000..1197b08
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/repo_indexer_status.yml
@@ -0,0 +1,3 @@
+-
+  id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/repository.yml b/models/migrations/fixtures/Test_RepositoryFormat/repository.yml
new file mode 100644
index 0000000..5a36759
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/repository.yml
@@ -0,0 +1,11 @@
+# type Repository struct {
+#   ID        int64  `xorm:"pk autoincr"`
+# }
+-
+  id: 1
+-
+  id: 2
+-
+  id: 3
+-
+  id: 10
diff --git a/models/migrations/fixtures/Test_RepositoryFormat/review_state.yml b/models/migrations/fixtures/Test_RepositoryFormat/review_state.yml
new file mode 100644
index 0000000..dd64980
--- /dev/null
+++ b/models/migrations/fixtures/Test_RepositoryFormat/review_state.yml
@@ -0,0 +1,5 @@
+-
+  id: 1
+  user_id: 1
+  pull_id: 1
+  commit_sha: 19fe5caf872476db265596eaac1dc35ad1c6422d
diff --git a/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/expected_webauthn_credential.yml b/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/expected_webauthn_credential.yml
new file mode 100644
index 0000000..55a237a
--- /dev/null
+++ b/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/expected_webauthn_credential.yml
@@ -0,0 +1,9 @@
+-
+  id: 1
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+-
+  id: 2
+  credential_id: "051CLMMKB62S6M9M2A4H54K7MMCQALFJ36G4TGB2S9A47APLTILU6C6744CEBG4EKCGV357N21BSLH8JD33GQMFAR6DQ70S76P34J6FR="
+-
+  id: 4
+  credential_id: "APU4B1NDTEVTEM60V4T0FRL7SRJMO9KIE2AKFQ8JDGTQ7VHFI41FDEFTDLBVQEAE4ER49QV2GTGVFDNBO31BPOA3OQN6879OT6MTU3G="
diff --git a/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/webauthn_credential.yml b/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/webauthn_credential.yml
new file mode 100644
index 0000000..ebb73f4
--- /dev/null
+++ b/models/migrations/fixtures/Test_StoreWebauthnCredentialIDAsBytes/webauthn_credential.yml
@@ -0,0 +1,30 @@
+-
+  id: 1
+  lower_name: "u2fkey-correctly-migrated"
+  name: "u2fkey-correctly-migrated"
+  user_id: 1
+  credential_id: "TVHE44TOH7DF7V48SEAIT3EMMJ7TGBOQ289E5AQB34S98LFCUFJ7U2NAVI8RJG6K2F4TC8AQ8KBNO7AGEOQOL9NE43GR63HTEHJSLOG="
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'fido-u2f'
+  sign_count: 1
+  clone_warning: false
+-
+  id: 2
+  lower_name: "non-u2f-key"
+  name: "non-u2f-key"
+  user_id: 1
+  credential_id: "051CLMMKB62S6M9M2A4H54K7MMCQALFJ36G4TGB2S9A47APLTILU6C6744CEBG4EKCGV357N21BSLH8JD33GQMFAR6DQ70S76P34J6FR"
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'none'
+  sign_count: 1
+  clone_warning: false
+-
+  id: 4
+  lower_name: "packed-key"
+  name: "packed-key"
+  user_id: 1
+  credential_id: "APU4B1NDTEVTEM60V4T0FRL7SRJMO9KIE2AKFQ8JDGTQ7VHFI41FDEFTDLBVQEAE4ER49QV2GTGVFDNBO31BPOA3OQN6879OT6MTU3G="
+  public_key: 0x040d0967a2cad045011631187576492a0beb5b377954b4f694c5afc8bdf25270f87f09a9ab6ce9c282f447ba71b2f2bae2105b32b847e0704f310f48644e3eddf2
+  attestation_type: 'fido-u2f'
+  sign_count: 1
+  clone_warning: false
diff --git a/models/migrations/fixtures/Test_UnwrapLDAPSourceCfg/login_source.yml b/models/migrations/fixtures/Test_UnwrapLDAPSourceCfg/login_source.yml
new file mode 100644
index 0000000..4b72ba1
--- /dev/null
+++ b/models/migrations/fixtures/Test_UnwrapLDAPSourceCfg/login_source.yml
@@ -0,0 +1,48 @@
+# type LoginSource struct {
+#   ID        int64 `xorm:"pk autoincr"`
+#   Type      int
+#   Cfg       []byte `xorm:"TEXT"`
+#   Expected  []byte `xorm:"TEXT"`
+# }
+-
+  id: 1
+  type: 1
+  is_actived: false
+  cfg: "{\"Source\":{\"A\":\"string\",\"B\":1}}"
+  expected: "{\"Source\":{\"A\":\"string\",\"B\":1}}"
+-
+  id: 2
+  type: 2
+  is_actived: true
+  cfg: "{\"Source\":{\"A\":\"string2\",\"B\":2}}"
+  expected: "{\"A\":\"string2\",\"B\":2}"
+-
+  id: 3
+  type: 3
+  is_actived: false
+  cfg: "{\"Source\":{\"A\":\"string3\",\"B\":3}}"
+  expected: "{\"Source\":{\"A\":\"string3\",\"B\":3}}"
+-
+  id: 4
+  type: 4
+  is_actived: true
+  cfg: "{\"Source\":{\"A\":\"string4\",\"B\":4}}"
+  expected: "{\"Source\":{\"A\":\"string4\",\"B\":4}}"
+-
+  id: 5
+  type: 5
+  is_actived: false
+  cfg: "{\"Source\":{\"A\":\"string5\",\"B\":5}}"
+  expected: "{\"A\":\"string5\",\"B\":5}"
+-
+  id: 6
+  type: 2
+  is_actived: true
+  cfg: "{\"A\":\"string6\",\"B\":6}"
+  expected: "{\"A\":\"string6\",\"B\":6}"
+-
+  id: 7
+  type: 5
+  is_actived: false
+  cfg: "{\"A\":\"string7\",\"B\":7}"
+  expected: "{\"A\":\"string7\",\"B\":7}"
diff --git a/models/migrations/fixtures/Test_UpdateBadgeColName/badge.yml b/models/migrations/fixtures/Test_UpdateBadgeColName/badge.yml
new file mode 100644
index 0000000..7025144
--- /dev/null
+++ b/models/migrations/fixtures/Test_UpdateBadgeColName/badge.yml
@@ -0,0 +1,4 @@
+-
+  id: 1
+  description: the badge
+  image_url: https://gitea.com/myimage.png
diff --git a/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/expected_milestone.yml b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/expected_milestone.yml
new file mode 100644
index 0000000..9326fa5
--- /dev/null
+++ b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/expected_milestone.yml
@@ -0,0 +1,19 @@
+# type Milestone struct {
+#   ID              int64                  `xorm:"pk autoincr"`
+#   IsClosed        bool
+#   NumIssues       int
+#   NumClosedIssues int
+#   Completeness    int  // Percentage(1-100).
+# }
+-
+  id: 1
+  is_closed: false
+  num_issues: 3
+  num_closed_issues: 1
+  completeness: 33
+-
+  id: 2
+  is_closed: true
+  num_issues: 5
+  num_closed_issues: 5
+  completeness: 100
diff --git a/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/issue.yml b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/issue.yml
new file mode 100644
index 0000000..fdaacd9
--- /dev/null
+++ b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/issue.yml
@@ -0,0 +1,25 @@
+# type Issue struct {
+#   ID               int64 `xorm:"pk autoincr"`
+#   RepoID           int64 `xorm:"INDEX UNIQUE(repo_index)"`
+#   Index            int64 `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+#   MilestoneID      int64 `xorm:"INDEX"`
+#   IsClosed         bool  `xorm:"INDEX"`
+# }
+-
+  id: 1
+  repo_id: 1
+  index: 1
+  milestone_id: 1
+  is_closed: false
+-
+  id: 2
+  repo_id: 1
+  index: 2
+  milestone_id: 1
+  is_closed: true
+-
+  id: 4
+  repo_id: 1
+  index: 3
+  milestone_id: 1
+  is_closed: false
diff --git a/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/milestone.yml b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/milestone.yml
new file mode 100644
index 0000000..0bcf4cf
--- /dev/null
+++ b/models/migrations/fixtures/Test_UpdateOpenMilestoneCounts/milestone.yml
@@ -0,0 +1,19 @@
+# type Milestone struct {
+#   ID              int64                  `xorm:"pk autoincr"`
+#   IsClosed        bool
+#   NumIssues       int
+#   NumClosedIssues int
+#   Completeness    int  // Percentage(1-100).
+# }
+-
+  id: 1
+  is_closed: false
+  num_issues: 4
+  num_closed_issues: 2
+  completeness: 50
+-
+  id: 2
+  is_closed: true
+  num_issues: 5
+  num_closed_issues: 5
+  completeness: 100
diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
new file mode 100644
index 0000000..d7e951f
--- /dev/null
+++ b/models/migrations/migrations.go
@@ -0,0 +1,721 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package migrations
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/forgejo_migrations"
+	"code.gitea.io/gitea/models/migrations/v1_10"
+	"code.gitea.io/gitea/models/migrations/v1_11"
+	"code.gitea.io/gitea/models/migrations/v1_12"
+	"code.gitea.io/gitea/models/migrations/v1_13"
+	"code.gitea.io/gitea/models/migrations/v1_14"
+	"code.gitea.io/gitea/models/migrations/v1_15"
+	"code.gitea.io/gitea/models/migrations/v1_16"
+	"code.gitea.io/gitea/models/migrations/v1_17"
+	"code.gitea.io/gitea/models/migrations/v1_18"
+	"code.gitea.io/gitea/models/migrations/v1_19"
+	"code.gitea.io/gitea/models/migrations/v1_20"
+	"code.gitea.io/gitea/models/migrations/v1_21"
+	"code.gitea.io/gitea/models/migrations/v1_22"
+	"code.gitea.io/gitea/models/migrations/v1_23"
+	"code.gitea.io/gitea/models/migrations/v1_6"
+	"code.gitea.io/gitea/models/migrations/v1_7"
+	"code.gitea.io/gitea/models/migrations/v1_8"
+	"code.gitea.io/gitea/models/migrations/v1_9"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	forgejo_services "code.gitea.io/gitea/services/forgejo"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/names"
+)
+
+const minDBVersion = 70 // Gitea 1.5.3
+
+// Migration describes on migration from lower version to high version
+type Migration interface {
+	Description() string
+	Migrate(*xorm.Engine) error
+}
+
+type migration struct {
+	description string
+	migrate     func(*xorm.Engine) error
+}
+
+// NewMigration creates a new migration
+func NewMigration(desc string, fn func(*xorm.Engine) error) Migration {
+	return &migration{desc, fn}
+}
+
+// Description returns the migration's description
+func (m *migration) Description() string {
+	return m.description
+}
+
+// Migrate executes the migration
+func (m *migration) Migrate(x *xorm.Engine) error {
+	return m.migrate(x)
+}
+
+// Version describes the version table. Should have only one row with id==1
+type Version struct {
+	ID      int64 `xorm:"pk autoincr"`
+	Version int64
+}
+
+// Use noopMigration when there is a migration that has been no-oped
+var noopMigration = func(_ *xorm.Engine) error { return nil }
+
+// This is a sequence of migrations. Add new migrations to the bottom of the list.
+// If you want to "retire" a migration, remove it from the top of the list and
+// update minDBVersion accordingly
+var migrations = []Migration{
+	// Gitea 1.5.0 ends at v69
+
+	// v70 -> v71
+	NewMigration("add issue_dependencies", v1_6.AddIssueDependencies),
+	// v71 -> v72
+	NewMigration("protect each scratch token", v1_6.AddScratchHash),
+	// v72 -> v73
+	NewMigration("add review", v1_6.AddReview),
+
+	// Gitea 1.6.0 ends at v73
+
+	// v73 -> v74
+	NewMigration("add must_change_password column for users table", v1_7.AddMustChangePassword),
+	// v74 -> v75
+	NewMigration("add approval whitelists to protected branches", v1_7.AddApprovalWhitelistsToProtectedBranches),
+	// v75 -> v76
+	NewMigration("clear nonused data which not deleted when user was deleted", v1_7.ClearNonusedData),
+
+	// Gitea 1.7.0 ends at v76
+
+	// v76 -> v77
+	NewMigration("add pull request rebase with merge commit", v1_8.AddPullRequestRebaseWithMerge),
+	// v77 -> v78
+	NewMigration("add theme to users", v1_8.AddUserDefaultTheme),
+	// v78 -> v79
+	NewMigration("rename repo is_bare to repo is_empty", v1_8.RenameRepoIsBareToIsEmpty),
+	// v79 -> v80
+	NewMigration("add can close issues via commit in any branch", v1_8.AddCanCloseIssuesViaCommitInAnyBranch),
+	// v80 -> v81
+	NewMigration("add is locked to issues", v1_8.AddIsLockedToIssues),
+	// v81 -> v82
+	NewMigration("update U2F counter type", v1_8.ChangeU2FCounterType),
+
+	// Gitea 1.8.0 ends at v82
+
+	// v82 -> v83
+	NewMigration("hot fix for wrong release sha1 on release table", v1_9.FixReleaseSha1OnReleaseTable),
+	// v83 -> v84
+	NewMigration("add uploader id for table attachment", v1_9.AddUploaderIDForAttachment),
+	// v84 -> v85
+	NewMigration("add table to store original imported gpg keys", v1_9.AddGPGKeyImport),
+	// v85 -> v86
+	NewMigration("hash application token", v1_9.HashAppToken),
+	// v86 -> v87
+	NewMigration("add http method to webhook", v1_9.AddHTTPMethodToWebhook),
+	// v87 -> v88
+	NewMigration("add avatar field to repository", v1_9.AddAvatarFieldToRepository),
+
+	// Gitea 1.9.0 ends at v88
+
+	// v88 -> v89
+	NewMigration("add commit status context field to commit_status", v1_10.AddCommitStatusContext),
+	// v89 -> v90
+	NewMigration("add original author/url migration info to issues, comments, and repo ", v1_10.AddOriginalMigrationInfo),
+	// v90 -> v91
+	NewMigration("change length of some repository columns", v1_10.ChangeSomeColumnsLengthOfRepo),
+	// v91 -> v92
+	NewMigration("add index on owner_id of repository and type, review_id of comment", v1_10.AddIndexOnRepositoryAndComment),
+	// v92 -> v93
+	NewMigration("remove orphaned repository index statuses", v1_10.RemoveLingeringIndexStatus),
+	// v93 -> v94
+	NewMigration("add email notification enabled preference to user", v1_10.AddEmailNotificationEnabledToUser),
+	// v94 -> v95
+	NewMigration("add enable_status_check, status_check_contexts to protected_branch", v1_10.AddStatusCheckColumnsForProtectedBranches),
+	// v95 -> v96
+	NewMigration("add table columns for cross referencing issues", v1_10.AddCrossReferenceColumns),
+	// v96 -> v97
+	NewMigration("delete orphaned attachments", v1_10.DeleteOrphanedAttachments),
+	// v97 -> v98
+	NewMigration("add repo_admin_change_team_access to user", v1_10.AddRepoAdminChangeTeamAccessColumnForUser),
+	// v98 -> v99
+	NewMigration("add original author name and id on migrated release", v1_10.AddOriginalAuthorOnMigratedReleases),
+	// v99 -> v100
+	NewMigration("add task table and status column for repository table", v1_10.AddTaskTable),
+	// v100 -> v101
+	NewMigration("update migration repositories' service type", v1_10.UpdateMigrationServiceTypes),
+	// v101 -> v102
+	NewMigration("change length of some external login users columns", v1_10.ChangeSomeColumnsLengthOfExternalLoginUser),
+
+	// Gitea 1.10.0 ends at v102
+
+	// v102 -> v103
+	NewMigration("update migration repositories' service type", v1_11.DropColumnHeadUserNameOnPullRequest),
+	// v103 -> v104
+	NewMigration("Add WhitelistDeployKeys to protected branch", v1_11.AddWhitelistDeployKeysToBranches),
+	// v104 -> v105
+	NewMigration("remove unnecessary columns from label", v1_11.RemoveLabelUneededCols),
+	// v105 -> v106
+	NewMigration("add includes_all_repositories to teams", v1_11.AddTeamIncludesAllRepositories),
+	// v106 -> v107
+	NewMigration("add column `mode` to table watch", v1_11.AddModeColumnToWatch),
+	// v107 -> v108
+	NewMigration("Add template options to repository", v1_11.AddTemplateToRepo),
+	// v108 -> v109
+	NewMigration("Add comment_id on table notification", v1_11.AddCommentIDOnNotification),
+	// v109 -> v110
+	NewMigration("add can_create_org_repo to team", v1_11.AddCanCreateOrgRepoColumnForTeam),
+	// v110 -> v111
+	NewMigration("change review content type to text", v1_11.ChangeReviewContentToText),
+	// v111 -> v112
+	NewMigration("update branch protection for can push and whitelist enable", v1_11.AddBranchProtectionCanPushAndEnableWhitelist),
+	// v112 -> v113
+	NewMigration("remove release attachments which repository deleted", v1_11.RemoveAttachmentMissedRepo),
+	// v113 -> v114
+	NewMigration("new feature: change target branch of pull requests", v1_11.FeatureChangeTargetBranch),
+	// v114 -> v115
+	NewMigration("Remove authentication credentials from stored URL", v1_11.SanitizeOriginalURL),
+	// v115 -> v116
+	NewMigration("add user_id prefix to existing user avatar name", v1_11.RenameExistingUserAvatarName),
+	// v116 -> v117
+	NewMigration("Extend TrackedTimes", v1_11.ExtendTrackedTimes),
+
+	// Gitea 1.11.0 ends at v117
+
+	// v117 -> v118
+	NewMigration("Add block on rejected reviews branch protection", v1_12.AddBlockOnRejectedReviews),
+	// v118 -> v119
+	NewMigration("Add commit id and stale to reviews", v1_12.AddReviewCommitAndStale),
+	// v119 -> v120
+	NewMigration("Fix migrated repositories' git service type", v1_12.FixMigratedRepositoryServiceType),
+	// v120 -> v121
+	NewMigration("Add owner_name on table repository", v1_12.AddOwnerNameOnRepository),
+	// v121 -> v122
+	NewMigration("add is_restricted column for users table", v1_12.AddIsRestricted),
+	// v122 -> v123
+	NewMigration("Add Require Signed Commits to ProtectedBranch", v1_12.AddRequireSignedCommits),
+	// v123 -> v124
+	NewMigration("Add original information for reactions", v1_12.AddReactionOriginals),
+	// v124 -> v125
+	NewMigration("Add columns to user and repository", v1_12.AddUserRepoMissingColumns),
+	// v125 -> v126
+	NewMigration("Add some columns on review for migration", v1_12.AddReviewMigrateInfo),
+	// v126 -> v127
+	NewMigration("Fix topic repository count", v1_12.FixTopicRepositoryCount),
+	// v127 -> v128
+	NewMigration("add repository code language statistics", v1_12.AddLanguageStats),
+	// v128 -> v129
+	NewMigration("fix merge base for pull requests", v1_12.FixMergeBase),
+	// v129 -> v130
+	NewMigration("remove dependencies from deleted repositories", v1_12.PurgeUnusedDependencies),
+	// v130 -> v131
+	NewMigration("Expand webhooks for more granularity", v1_12.ExpandWebhooks),
+	// v131 -> v132
+	NewMigration("Add IsSystemWebhook column to webhooks table", v1_12.AddSystemWebhookColumn),
+	// v132 -> v133
+	NewMigration("Add Branch Protection Protected Files Column", v1_12.AddBranchProtectionProtectedFilesColumn),
+	// v133 -> v134
+	NewMigration("Add EmailHash Table", v1_12.AddEmailHashTable),
+	// v134 -> v135
+	NewMigration("Refix merge base for merged pull requests", v1_12.RefixMergeBase),
+	// v135 -> v136
+	NewMigration("Add OrgID column to Labels table", v1_12.AddOrgIDLabelColumn),
+	// v136 -> v137
+	NewMigration("Add CommitsAhead and CommitsBehind Column to PullRequest Table", v1_12.AddCommitDivergenceToPulls),
+	// v137 -> v138
+	NewMigration("Add Branch Protection Block Outdated Branch", v1_12.AddBlockOnOutdatedBranch),
+	// v138 -> v139
+	NewMigration("Add ResolveDoerID to Comment table", v1_12.AddResolveDoerIDCommentColumn),
+	// v139 -> v140
+	NewMigration("prepend refs/heads/ to issue refs", v1_12.PrependRefsHeadsToIssueRefs),
+
+	// Gitea 1.12.0 ends at v140
+
+	// v140 -> v141
+	NewMigration("Save detected language file size to database instead of percent", v1_13.FixLanguageStatsToSaveSize),
+	// v141 -> v142
+	NewMigration("Add KeepActivityPrivate to User table", v1_13.AddKeepActivityPrivateUserColumn),
+	// v142 -> v143
+	NewMigration("Ensure Repository.IsArchived is not null", v1_13.SetIsArchivedToFalse),
+	// v143 -> v144
+	NewMigration("recalculate Stars number for all user", v1_13.RecalculateStars),
+	// v144 -> v145
+	NewMigration("update Matrix Webhook http method to 'PUT'", v1_13.UpdateMatrixWebhookHTTPMethod),
+	// v145 -> v146
+	NewMigration("Increase Language field to 50 in LanguageStats", v1_13.IncreaseLanguageField),
+	// v146 -> v147
+	NewMigration("Add projects info to repository table", v1_13.AddProjectsInfo),
+	// v147 -> v148
+	NewMigration("create review for 0 review id code comments", v1_13.CreateReviewsForCodeComments),
+	// v148 -> v149
+	NewMigration("remove issue dependency comments who refer to non existing issues", v1_13.PurgeInvalidDependenciesComments),
+	// v149 -> v150
+	NewMigration("Add Created and Updated to Milestone table", v1_13.AddCreatedAndUpdatedToMilestones),
+	// v150 -> v151
+	NewMigration("add primary key to repo_topic", v1_13.AddPrimaryKeyToRepoTopic),
+	// v151 -> v152
+	NewMigration("set default password algorithm to Argon2", v1_13.SetDefaultPasswordToArgon2),
+	// v152 -> v153
+	NewMigration("add TrustModel field to Repository", v1_13.AddTrustModelToRepository),
+	// v153 > v154
+	NewMigration("add Team review request support", v1_13.AddTeamReviewRequestSupport),
+	// v154 > v155
+	NewMigration("add timestamps to Star, Label, Follow, Watch and Collaboration", v1_13.AddTimeStamps),
+
+	// Gitea 1.13.0 ends at v155
+
+	// v155 -> v156
+	NewMigration("add changed_protected_files column for pull_request table", v1_14.AddChangedProtectedFilesPullRequestColumn),
+	// v156 -> v157
+	NewMigration("fix publisher ID for tag releases", v1_14.FixPublisherIDforTagReleases),
+	// v157 -> v158
+	NewMigration("ensure repo topics are up-to-date", v1_14.FixRepoTopics),
+	// v158 -> v159
+	NewMigration("code comment replies should have the commitID of the review they are replying to", v1_14.UpdateCodeCommentReplies),
+	// v159 -> v160
+	NewMigration("update reactions constraint", v1_14.UpdateReactionConstraint),
+	// v160 -> v161
+	NewMigration("Add block on official review requests branch protection", v1_14.AddBlockOnOfficialReviewRequests),
+	// v161 -> v162
+	NewMigration("Convert task type from int to string", v1_14.ConvertTaskTypeToString),
+	// v162 -> v163
+	NewMigration("Convert webhook task type from int to string", v1_14.ConvertWebhookTaskTypeToString),
+	// v163 -> v164
+	NewMigration("Convert topic name from 25 to 50", v1_14.ConvertTopicNameFrom25To50),
+	// v164 -> v165
+	NewMigration("Add scope and nonce columns to oauth2_grant table", v1_14.AddScopeAndNonceColumnsToOAuth2Grant),
+	// v165 -> v166
+	NewMigration("Convert hook task type from char(16) to varchar(16) and trim the column", v1_14.ConvertHookTaskTypeToVarcharAndTrim),
+	// v166 -> v167
+	NewMigration("Where Password is Valid with Empty String delete it", v1_14.RecalculateUserEmptyPWD),
+	// v167 -> v168
+	NewMigration("Add user redirect", v1_14.AddUserRedirect),
+	// v168 -> v169
+	NewMigration("Recreate user table to fix default values", v1_14.RecreateUserTableToFixDefaultValues),
+	// v169 -> v170
+	NewMigration("Update DeleteBranch comments to set the old_ref to the commit_sha", v1_14.CommentTypeDeleteBranchUseOldRef),
+	// v170 -> v171
+	NewMigration("Add Dismissed to Review table", v1_14.AddDismissedReviewColumn),
+	// v171 -> v172
+	NewMigration("Add Sorting to ProjectBoard table", v1_14.AddSortingColToProjectBoard),
+	// v172 -> v173
+	NewMigration("Add sessions table for go-chi/session", v1_14.AddSessionTable),
+	// v173 -> v174
+	NewMigration("Add time_id column to Comment", v1_14.AddTimeIDCommentColumn),
+	// v174 -> v175
+	NewMigration("Create repo transfer table", v1_14.AddRepoTransfer),
+	// v175 -> v176
+	NewMigration("Fix Postgres ID Sequences broken by recreate-table", v1_14.FixPostgresIDSequences),
+	// v176 -> v177
+	NewMigration("Remove invalid labels from comments", v1_14.RemoveInvalidLabels),
+	// v177 -> v178
+	NewMigration("Delete orphaned IssueLabels", v1_14.DeleteOrphanedIssueLabels),
+
+	// Gitea 1.14.0 ends at v178
+
+	// v178 -> v179
+	NewMigration("Add LFS columns to Mirror", v1_15.AddLFSMirrorColumns),
+	// v179 -> v180
+	NewMigration("Convert avatar url to text", v1_15.ConvertAvatarURLToText),
+	// v180 -> v181
+	NewMigration("Delete credentials from past migrations", v1_15.DeleteMigrationCredentials),
+	// v181 -> v182
+	NewMigration("Always save primary email on email address table", v1_15.AddPrimaryEmail2EmailAddress),
+	// v182 -> v183
+	NewMigration("Add issue resource index table", v1_15.AddIssueResourceIndexTable),
+	// v183 -> v184
+	NewMigration("Create PushMirror table", v1_15.CreatePushMirrorTable),
+	// v184 -> v185
+	NewMigration("Rename Task errors to message", v1_15.RenameTaskErrorsToMessage),
+	// v185 -> v186
+	NewMigration("Add new table repo_archiver", v1_15.AddRepoArchiver),
+	// v186 -> v187
+	NewMigration("Create protected tag table", v1_15.CreateProtectedTagTable),
+	// v187 -> v188
+	NewMigration("Drop unneeded webhook related columns", v1_15.DropWebhookColumns),
+	// v188 -> v189
+	NewMigration("Add key is verified to gpg key", v1_15.AddKeyIsVerified),
+
+	// Gitea 1.15.0 ends at v189
+
+	// v189 -> v190
+	NewMigration("Unwrap ldap.Sources", v1_16.UnwrapLDAPSourceCfg),
+	// v190 -> v191
+	NewMigration("Add agit flow pull request support", v1_16.AddAgitFlowPullRequest),
+	// v191 -> v192
+	NewMigration("Alter issue/comment table TEXT fields to LONGTEXT", v1_16.AlterIssueAndCommentTextFieldsToLongText),
+	// v192 -> v193
+	NewMigration("RecreateIssueResourceIndexTable to have a primary key instead of an unique index", v1_16.RecreateIssueResourceIndexTable),
+	// v193 -> v194
+	NewMigration("Add repo id column for attachment table", v1_16.AddRepoIDForAttachment),
+	// v194 -> v195
+	NewMigration("Add Branch Protection Unprotected Files Column", v1_16.AddBranchProtectionUnprotectedFilesColumn),
+	// v195 -> v196
+	NewMigration("Add table commit_status_index", v1_16.AddTableCommitStatusIndex),
+	// v196 -> v197
+	NewMigration("Add Color to ProjectBoard table", v1_16.AddColorColToProjectBoard),
+	// v197 -> v198
+	NewMigration("Add renamed_branch table", v1_16.AddRenamedBranchTable),
+	// v198 -> v199
+	NewMigration("Add issue content history table", v1_16.AddTableIssueContentHistory),
+	// v199 -> v200
+	NewMigration("No-op (remote version is using AppState now)", noopMigration),
+	// v200 -> v201
+	NewMigration("Add table app_state", v1_16.AddTableAppState),
+	// v201 -> v202
+	NewMigration("Drop table remote_version (if exists)", v1_16.DropTableRemoteVersion),
+	// v202 -> v203
+	NewMigration("Create key/value table for user settings", v1_16.CreateUserSettingsTable),
+	// v203 -> v204
+	NewMigration("Add Sorting to ProjectIssue table", v1_16.AddProjectIssueSorting),
+	// v204 -> v205
+	NewMigration("Add key is verified to ssh key", v1_16.AddSSHKeyIsVerified),
+	// v205 -> v206
+	NewMigration("Migrate to higher varchar on user struct", v1_16.MigrateUserPasswordSalt),
+	// v206 -> v207
+	NewMigration("Add authorize column to team_unit table", v1_16.AddAuthorizeColForTeamUnit),
+	// v207 -> v208
+	NewMigration("Add webauthn table and migrate u2f data to webauthn - NO-OPED", v1_16.AddWebAuthnCred),
+	// v208 -> v209
+	NewMigration("Use base32.HexEncoding instead of base64 encoding for cred ID as it is case insensitive - NO-OPED", v1_16.UseBase32HexForCredIDInWebAuthnCredential),
+	// v209 -> v210
+	NewMigration("Increase WebAuthentication CredentialID size to 410 - NO-OPED", v1_16.IncreaseCredentialIDTo410),
+	// v210 -> v211
+	NewMigration("v208 was completely broken - remigrate", v1_16.RemigrateU2FCredentials),
+
+	// Gitea 1.16.2 ends at v211
+
+	// v211 -> v212
+	NewMigration("Create ForeignReference table", v1_17.CreateForeignReferenceTable),
+	// v212 -> v213
+	NewMigration("Add package tables", v1_17.AddPackageTables),
+	// v213 -> v214
+	NewMigration("Add allow edits from maintainers to PullRequest table", v1_17.AddAllowMaintainerEdit),
+	// v214 -> v215
+	NewMigration("Add auto merge table", v1_17.AddAutoMergeTable),
+	// v215 -> v216
+	NewMigration("allow to view files in PRs", v1_17.AddReviewViewedFiles),
+	// v216 -> v217
+	NewMigration("No-op (Improve Action table indices v1)", noopMigration),
+	// v217 -> v218
+	NewMigration("Alter hook_task table TEXT fields to LONGTEXT", v1_17.AlterHookTaskTextFieldsToLongText),
+	// v218 -> v219
+	NewMigration("Improve Action table indices v2", v1_17.ImproveActionTableIndices),
+	// v219 -> v220
+	NewMigration("Add sync_on_commit column to push_mirror table", v1_17.AddSyncOnCommitColForPushMirror),
+	// v220 -> v221
+	NewMigration("Add container repository property", v1_17.AddContainerRepositoryProperty),
+	// v221 -> v222
+	NewMigration("Store WebAuthentication CredentialID as bytes and increase size to at least 1024", v1_17.StoreWebauthnCredentialIDAsBytes),
+	// v222 -> v223
+	NewMigration("Drop old CredentialID column", v1_17.DropOldCredentialIDColumn),
+	// v223 -> v224
+	NewMigration("Rename CredentialIDBytes column to CredentialID", v1_17.RenameCredentialIDBytes),
+
+	// Gitea 1.17.0 ends at v224
+
+	// v224 -> v225
+	NewMigration("Add badges to users", v1_18.CreateUserBadgesTable),
+	// v225 -> v226
+	NewMigration("Alter gpg_key/public_key content TEXT fields to MEDIUMTEXT", v1_18.AlterPublicGPGKeyContentFieldsToMediumText),
+	// v226 -> v227
+	NewMigration("Conan and generic packages do not need to be semantically versioned", v1_18.FixPackageSemverField),
+	// v227 -> v228
+	NewMigration("Create key/value table for system settings", v1_18.CreateSystemSettingsTable),
+	// v228 -> v229
+	NewMigration("Add TeamInvite table", v1_18.AddTeamInviteTable),
+	// v229 -> v230
+	NewMigration("Update counts of all open milestones", v1_18.UpdateOpenMilestoneCounts),
+	// v230 -> v231
+	NewMigration("Add ConfidentialClient column (default true) to OAuth2Application table", v1_18.AddConfidentialClientColumnToOAuth2ApplicationTable),
+
+	// Gitea 1.18.0 ends at v231
+
+	// v231 -> v232
+	NewMigration("Add index for hook_task", v1_19.AddIndexForHookTask),
+	// v232 -> v233
+	NewMigration("Alter package_version.metadata_json to LONGTEXT", v1_19.AlterPackageVersionMetadataToLongText),
+	// v233 -> v234
+	NewMigration("Add header_authorization_encrypted column to webhook table", v1_19.AddHeaderAuthorizationEncryptedColWebhook),
+	// v234 -> v235
+	NewMigration("Add package cleanup rule table", v1_19.CreatePackageCleanupRuleTable),
+	// v235 -> v236
+	NewMigration("Add index for access_token", v1_19.AddIndexForAccessToken),
+	// v236 -> v237
+	NewMigration("Create secrets table", v1_19.CreateSecretsTable),
+	// v237 -> v238
+	NewMigration("Drop ForeignReference table", v1_19.DropForeignReferenceTable),
+	// v238 -> v239
+	NewMigration("Add updated unix to LFSMetaObject", v1_19.AddUpdatedUnixToLFSMetaObject),
+	// v239 -> v240
+	NewMigration("Add scope for access_token", v1_19.AddScopeForAccessTokens),
+	// v240 -> v241
+	NewMigration("Add actions tables", v1_19.AddActionsTables),
+	// v241 -> v242
+	NewMigration("Add card_type column to project table", v1_19.AddCardTypeToProjectTable),
+	// v242 -> v243
+	NewMigration("Alter gpg_key_import content TEXT field to MEDIUMTEXT", v1_19.AlterPublicGPGKeyImportContentFieldToMediumText),
+	// v243 -> v244
+	NewMigration("Add exclusive label", v1_19.AddExclusiveLabel),
+
+	// Gitea 1.19.0 ends at v244
+
+	// v244 -> v245
+	NewMigration("Add NeedApproval to actions tables", v1_20.AddNeedApprovalToActionRun),
+	// v245 -> v246
+	NewMigration("Rename Webhook org_id to owner_id", v1_20.RenameWebhookOrgToOwner),
+	// v246 -> v247
+	NewMigration("Add missed column owner_id for project table", v1_20.AddNewColumnForProject),
+	// v247 -> v248
+	NewMigration("Fix incorrect project type", v1_20.FixIncorrectProjectType),
+	// v248 -> v249
+	NewMigration("Add version column to action_runner table", v1_20.AddVersionToActionRunner),
+	// v249 -> v250
+	NewMigration("Improve Action table indices v3", v1_20.ImproveActionTableIndices),
+	// v250 -> v251
+	NewMigration("Change Container Metadata", v1_20.ChangeContainerMetadataMultiArch),
+	// v251 -> v252
+	NewMigration("Fix incorrect owner team unit access mode", v1_20.FixIncorrectOwnerTeamUnitAccessMode),
+	// v252 -> v253
+	NewMigration("Fix incorrect admin team unit access mode", v1_20.FixIncorrectAdminTeamUnitAccessMode),
+	// v253 -> v254
+	NewMigration("Fix ExternalTracker and ExternalWiki accessMode in owner and admin team", v1_20.FixExternalTrackerAndExternalWikiAccessModeInOwnerAndAdminTeam),
+	// v254 -> v255
+	NewMigration("Add ActionTaskOutput table", v1_20.AddActionTaskOutputTable),
+	// v255 -> v256
+	NewMigration("Add ArchivedUnix Column", v1_20.AddArchivedUnixToRepository),
+	// v256 -> v257
+	NewMigration("Add is_internal column to package", v1_20.AddIsInternalColumnToPackage),
+	// v257 -> v258
+	NewMigration("Add Actions Artifact table", v1_20.CreateActionArtifactTable),
+	// v258 -> v259
+	NewMigration("Add PinOrder Column", v1_20.AddPinOrderToIssue),
+	// v259 -> v260
+	NewMigration("Convert scoped access tokens", v1_20.ConvertScopedAccessTokens),
+
+	// Gitea 1.20.0 ends at 260
+
+	// v260 -> v261
+	NewMigration("Drop custom_labels column of action_runner table", v1_21.DropCustomLabelsColumnOfActionRunner),
+	// v261 -> v262
+	NewMigration("Add variable table", v1_21.CreateVariableTable),
+	// v262 -> v263
+	NewMigration("Add TriggerEvent to action_run table", v1_21.AddTriggerEventToActionRun),
+	// v263 -> v264
+	NewMigration("Add git_size and lfs_size columns to repository table", v1_21.AddGitSizeAndLFSSizeToRepositoryTable),
+	// v264 -> v265
+	NewMigration("Add branch table", v1_21.AddBranchTable),
+	// v265 -> v266
+	NewMigration("Alter Actions Artifact table", v1_21.AlterActionArtifactTable),
+	// v266 -> v267
+	NewMigration("Reduce commit status", v1_21.ReduceCommitStatus),
+	// v267 -> v268
+	NewMigration("Add action_tasks_version table", v1_21.CreateActionTasksVersionTable),
+	// v268 -> v269
+	NewMigration("Update Action Ref", v1_21.UpdateActionsRefIndex),
+	// v269 -> v270
+	NewMigration("Drop deleted branch table", v1_21.DropDeletedBranchTable),
+	// v270 -> v271
+	NewMigration("Fix PackageProperty typo", v1_21.FixPackagePropertyTypo),
+	// v271 -> v272
+	NewMigration("Allow archiving labels", v1_21.AddArchivedUnixColumInLabelTable),
+	// v272 -> v273
+	NewMigration("Add Version to ActionRun table", v1_21.AddVersionToActionRunTable),
+	// v273 -> v274
+	NewMigration("Add Action Schedule Table", v1_21.AddActionScheduleTable),
+	// v274 -> v275
+	NewMigration("Add Actions artifacts expiration date", v1_21.AddExpiredUnixColumnInActionArtifactTable),
+	// v275 -> v276
+	NewMigration("Add ScheduleID for ActionRun", v1_21.AddScheduleIDForActionRun),
+	// v276 -> v277
+	NewMigration("Add RemoteAddress to mirrors", v1_21.AddRemoteAddressToMirrors),
+	// v277 -> v278
+	NewMigration("Add Index to issue_user.issue_id", v1_21.AddIndexToIssueUserIssueID),
+	// v278 -> v279
+	NewMigration("Add Index to comment.dependent_issue_id", v1_21.AddIndexToCommentDependentIssueID),
+	// v279 -> v280
+	NewMigration("Add Index to action.user_id", v1_21.AddIndexToActionUserID),
+
+	// Gitea 1.21.0 ends at 280
+
+	// v280 -> v281
+	NewMigration("Rename user themes", v1_22.RenameUserThemes),
+	// v281 -> v282
+	NewMigration("Add auth_token table", v1_22.CreateAuthTokenTable),
+	// v282 -> v283
+	NewMigration("Add Index to pull_auto_merge.doer_id", v1_22.AddIndexToPullAutoMergeDoerID),
+	// v283 -> v284
+	NewMigration("Add combined Index to issue_user.uid and issue_id", v1_22.AddCombinedIndexToIssueUser),
+	// v284 -> v285
+	NewMigration("Add ignore stale approval column on branch table", v1_22.AddIgnoreStaleApprovalsColumnToProtectedBranchTable),
+	// v285 -> v286
+	NewMigration("Add PreviousDuration to ActionRun", v1_22.AddPreviousDurationToActionRun),
+	// v286 -> v287
+	NewMigration("Add support for SHA256 git repositories", v1_22.AdjustDBForSha256),
+	// v287 -> v288
+	NewMigration("Use Slug instead of ID for Badges", v1_22.UseSlugInsteadOfIDForBadges),
+	// v288 -> v289
+	NewMigration("Add user_blocking table", v1_22.AddUserBlockingTable),
+	// v289 -> v290
+	NewMigration("Add default_wiki_branch to repository table", v1_22.AddDefaultWikiBranch),
+	// v290 -> v291
+	NewMigration("Add PayloadVersion to HookTask", v1_22.AddPayloadVersionToHookTaskTable),
+	// v291 -> v292
+	NewMigration("Add Index to attachment.comment_id", v1_22.AddCommentIDIndexofAttachment),
+	// v292 -> v293
+	NewMigration("Ensure every project has exactly one default column - No Op", noopMigration),
+	// v293 -> v294
+	NewMigration("Ensure every project has exactly one default column", v1_22.CheckProjectColumnsConsistency),
+
+	// Gitea 1.22.0-rc0 ends at 294
+
+	// v294 -> v295
+	NewMigration("Add unique index for project issue table", v1_22.AddUniqueIndexForProjectIssue),
+	// v295 -> v296
+	NewMigration("Add commit status summary table", v1_22.AddCommitStatusSummary),
+	// v296 -> v297
+	NewMigration("Add missing field of commit status summary table", v1_22.AddCommitStatusSummary2),
+	// v297 -> v298
+	NewMigration("Add everyone_access_mode for repo_unit", noopMigration),
+	// v298 -> v299
+	NewMigration("Drop wrongly created table o_auth2_application", v1_22.DropWronglyCreatedTable),
+
+	// Gitea 1.22.0-rc1 ends at 299
+
+	// v299 -> v300
+	NewMigration("Add content version to issue and comment table", v1_23.AddContentVersionToIssueAndComment),
+	// v300 -> v301
+	NewMigration("Add force-push branch protection support", v1_23.AddForcePushBranchProtection),
+	// v301 -> v302
+	NewMigration("Add skip_secondary_authorization option to oauth2 application table", v1_23.AddSkipSecondaryAuthColumnToOAuth2ApplicationTable),
+	// v302 -> v303
+	NewMigration("Add index to action_task stopped log_expired", v1_23.AddIndexToActionTaskStoppedLogExpired),
+}
+
+// GetCurrentDBVersion returns the current db version
+func GetCurrentDBVersion(x *xorm.Engine) (int64, error) {
+	if err := x.Sync(new(Version)); err != nil {
+		return -1, fmt.Errorf("sync: %w", err)
+	}
+
+	currentVersion := &Version{ID: 1}
+	has, err := x.Get(currentVersion)
+	if err != nil {
+		return -1, fmt.Errorf("get: %w", err)
+	}
+	if !has {
+		return -1, nil
+	}
+	return currentVersion.Version, nil
+}
+
+// ExpectedVersion returns the expected db version
+func ExpectedVersion() int64 {
+	return int64(minDBVersion + len(migrations))
+}
+
+// EnsureUpToDate will check if the db is at the correct version
+func EnsureUpToDate(x *xorm.Engine) error {
+	currentDB, err := GetCurrentDBVersion(x)
+	if err != nil {
+		return err
+	}
+
+	if currentDB < 0 {
+		return fmt.Errorf("Database has not been initialized")
+	}
+
+	if minDBVersion > currentDB {
+		return fmt.Errorf("DB version %d (<= %d) is too old for auto-migration. Upgrade to Gitea 1.6.4 first then upgrade to this version", currentDB, minDBVersion)
+	}
+
+	expected := ExpectedVersion()
+
+	if currentDB != expected {
+		return fmt.Errorf(`Current database version %d is not equal to the expected version %d. Please run "forgejo [--config /path/to/app.ini] migrate" to update the database version`, currentDB, expected)
+	}
+
+	return forgejo_migrations.EnsureUpToDate(x)
+}
+
+// Migrate database to current version
+func Migrate(x *xorm.Engine) error {
+	// Set a new clean the default mapper to GonicMapper as that is the default for Gitea.
+	x.SetMapper(names.GonicMapper{})
+	if err := x.Sync(new(Version)); err != nil {
+		return fmt.Errorf("sync: %w", err)
+	}
+
+	var previousVersion int64
+	currentVersion := &Version{ID: 1}
+	has, err := x.Get(currentVersion)
+	if err != nil {
+		return fmt.Errorf("get: %w", err)
+	} else if !has {
+		// If the version record does not exist we think
+		// it is a fresh installation and we can skip all migrations.
+		currentVersion.ID = 0
+		currentVersion.Version = int64(minDBVersion + len(migrations))
+
+		if _, err = x.InsertOne(currentVersion); err != nil {
+			return fmt.Errorf("insert: %w", err)
+		}
+	} else {
+		previousVersion = currentVersion.Version
+	}
+
+	v := currentVersion.Version
+	if minDBVersion > v {
+		log.Fatal(`Forgejo no longer supports auto-migration from your previously installed version.
+Please try upgrading to a lower version first (suggested v1.6.4), then upgrade to this version.`)
+		return nil
+	}
+
+	// Downgrading Forgejo database version is not supported
+	if int(v-minDBVersion) > len(migrations) {
+		msg := fmt.Sprintf("Your database (migration version: %d) is for a newer Forgejo, you can not use the newer database for this old Forgejo release (%d).", v, minDBVersion+len(migrations))
+		msg += "\nForgejo will exit to keep your database safe and unchanged. Please use the correct Forgejo release, do not change the migration version manually (incorrect manual operation may lose data)."
+		if !setting.IsProd {
+			msg += fmt.Sprintf("\nIf you are in development and really know what you're doing, you can force changing the migration version by executing: UPDATE version SET version=%d WHERE id=1;", minDBVersion+len(migrations))
+		}
+		log.Fatal("Migration Error: %s", msg)
+		return nil
+	}
+
+	// Some migration tasks depend on the git command
+	if git.DefaultContext == nil {
+		if err = git.InitSimple(context.Background()); err != nil {
+			return err
+		}
+	}
+
+	if err := forgejo_services.PreMigrationSanityChecks(x, previousVersion, setting.CfgProvider); err != nil {
+		return err
+	}
+
+	// Migrate
+	for i, m := range migrations[v-minDBVersion:] {
+		log.Info("Migration[%d]: %s", v+int64(i), m.Description())
+		// Reset the mapper between each migration - migrations are not supposed to depend on each other
+		x.SetMapper(names.GonicMapper{})
+		if err = m.Migrate(x); err != nil {
+			return fmt.Errorf("migration[%d]: %s failed: %w", v+int64(i), m.Description(), err)
+		}
+		currentVersion.Version = v + int64(i) + 1
+		if _, err = x.ID(1).Update(currentVersion); err != nil {
+			return err
+		}
+	}
+
+	// Execute Forgejo specific migrations.
+	return forgejo_migrations.Migrate(x)
+}
diff --git a/models/migrations/test/tests.go b/models/migrations/test/tests.go
new file mode 100644
index 0000000..0e37233
--- /dev/null
+++ b/models/migrations/test/tests.go
@@ -0,0 +1,274 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//nolint:forbidigo
+package test
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"os"
+	"path"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/testlogger"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm"
+)
+
+// PrepareTestEnv prepares the test environment and reset the database. The skip parameter should usually be 0.
+// Provide models to be sync'd with the database - in particular any models you expect fixtures to be loaded from.
+//
+// fixtures in `models/migrations/fixtures/<TestName>` will be loaded automatically
+func PrepareTestEnv(t *testing.T, skip int, syncModels ...any) (*xorm.Engine, func()) {
+	t.Helper()
+	ourSkip := 2
+	ourSkip += skip
+	deferFn := testlogger.PrintCurrentTest(t, ourSkip)
+	require.NoError(t, os.RemoveAll(setting.RepoRootPath))
+	require.NoError(t, unittest.CopyDir(path.Join(filepath.Dir(setting.AppPath), "tests/gitea-repositories-meta"), setting.RepoRootPath))
+	ownerDirs, err := os.ReadDir(setting.RepoRootPath)
+	if err != nil {
+		require.NoError(t, err, "unable to read the new repo root: %v\n", err)
+	}
+	for _, ownerDir := range ownerDirs {
+		if !ownerDir.Type().IsDir() {
+			continue
+		}
+		repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
+		if err != nil {
+			require.NoError(t, err, "unable to read the new repo root: %v\n", err)
+		}
+		for _, repoDir := range repoDirs {
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "pack"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "info"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "heads"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "tag"), 0o755)
+		}
+	}
+
+	if err := deleteDB(); err != nil {
+		t.Errorf("unable to reset database: %v", err)
+		return nil, deferFn
+	}
+
+	x, err := newXORMEngine()
+	require.NoError(t, err)
+	if x != nil {
+		oldDefer := deferFn
+		deferFn = func() {
+			oldDefer()
+			if err := x.Close(); err != nil {
+				t.Errorf("error during close: %v", err)
+			}
+			if err := deleteDB(); err != nil {
+				t.Errorf("unable to reset database: %v", err)
+			}
+		}
+	}
+	if err != nil {
+		return x, deferFn
+	}
+
+	if len(syncModels) > 0 {
+		if err := x.Sync(syncModels...); err != nil {
+			t.Errorf("error during sync: %v", err)
+			return x, deferFn
+		}
+	}
+
+	fixturesDir := filepath.Join(filepath.Dir(setting.AppPath), "models", "migrations", "fixtures", t.Name())
+
+	if _, err := os.Stat(fixturesDir); err == nil {
+		t.Logf("initializing fixtures from: %s", fixturesDir)
+		if err := unittest.InitFixtures(
+			unittest.FixturesOptions{
+				Dir: fixturesDir,
+			}, x); err != nil {
+			t.Errorf("error whilst initializing fixtures from %s: %v", fixturesDir, err)
+			return x, deferFn
+		}
+		if err := unittest.LoadFixtures(x); err != nil {
+			t.Errorf("error whilst loading fixtures from %s: %v", fixturesDir, err)
+			return x, deferFn
+		}
+	} else if !os.IsNotExist(err) {
+		t.Errorf("unexpected error whilst checking for existence of fixtures: %v", err)
+	} else {
+		t.Logf("no fixtures found in: %s", fixturesDir)
+	}
+
+	return x, deferFn
+}
+
+func MainTest(m *testing.M) {
+	log.RegisterEventWriter("test", testlogger.NewTestLoggerWriter)
+
+	giteaRoot := base.SetupGiteaRoot()
+	if giteaRoot == "" {
+		fmt.Println("Environment variable $GITEA_ROOT not set")
+		os.Exit(1)
+	}
+	giteaBinary := "gitea"
+	if runtime.GOOS == "windows" {
+		giteaBinary += ".exe"
+	}
+	setting.AppPath = path.Join(giteaRoot, giteaBinary)
+	if _, err := os.Stat(setting.AppPath); err != nil {
+		fmt.Printf("Could not find gitea binary at %s\n", setting.AppPath)
+		os.Exit(1)
+	}
+
+	giteaConf := os.Getenv("GITEA_CONF")
+	if giteaConf == "" {
+		giteaConf = path.Join(filepath.Dir(setting.AppPath), "tests/sqlite.ini")
+		fmt.Printf("Environment variable $GITEA_CONF not set - defaulting to %s\n", giteaConf)
+	}
+
+	if !path.IsAbs(giteaConf) {
+		setting.CustomConf = path.Join(giteaRoot, giteaConf)
+	} else {
+		setting.CustomConf = giteaConf
+	}
+
+	tmpDataPath, err := os.MkdirTemp("", "data")
+	if err != nil {
+		fmt.Printf("Unable to create temporary data path %v\n", err)
+		os.Exit(1)
+	}
+
+	setting.CustomPath = filepath.Join(setting.AppWorkPath, "custom")
+	setting.AppDataPath = tmpDataPath
+
+	unittest.InitSettings()
+	if err = git.InitFull(context.Background()); err != nil {
+		fmt.Printf("Unable to InitFull: %v\n", err)
+		os.Exit(1)
+	}
+	setting.LoadDBSetting()
+	setting.InitLoggersForTest()
+
+	exitStatus := m.Run()
+
+	if err := testlogger.WriterCloser.Reset(); err != nil && exitStatus == 0 {
+		fmt.Printf("testlogger.WriterCloser.Reset: error ignored: %v\n", err)
+	}
+	if err := removeAllWithRetry(setting.RepoRootPath); err != nil {
+		fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
+	}
+	if err := removeAllWithRetry(tmpDataPath); err != nil {
+		fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
+	}
+	os.Exit(exitStatus)
+}
+
+func newXORMEngine() (*xorm.Engine, error) {
+	if err := db.InitEngine(context.Background()); err != nil {
+		return nil, err
+	}
+	x := unittest.GetXORMEngine()
+	return x, nil
+}
+
+func deleteDB() error {
+	switch {
+	case setting.Database.Type.IsSQLite3():
+		if err := util.Remove(setting.Database.Path); err != nil {
+			return err
+		}
+		return os.MkdirAll(path.Dir(setting.Database.Path), os.ModePerm)
+
+	case setting.Database.Type.IsMySQL():
+		db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/",
+			setting.Database.User, setting.Database.Passwd, setting.Database.Host))
+		if err != nil {
+			return err
+		}
+		defer db.Close()
+
+		databaseName := strings.SplitN(setting.Database.Name, "?", 2)[0]
+
+		if _, err = db.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS %s", databaseName)); err != nil {
+			return err
+		}
+
+		if _, err = db.Exec(fmt.Sprintf("CREATE DATABASE IF NOT EXISTS %s", databaseName)); err != nil {
+			return err
+		}
+		return nil
+	case setting.Database.Type.IsPostgreSQL():
+		db, err := sql.Open("postgres", fmt.Sprintf("postgres://%s:%s@%s/?sslmode=%s",
+			setting.Database.User, setting.Database.Passwd, setting.Database.Host, setting.Database.SSLMode))
+		if err != nil {
+			return err
+		}
+		defer db.Close()
+
+		if _, err = db.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS %s", setting.Database.Name)); err != nil {
+			return err
+		}
+
+		if _, err = db.Exec(fmt.Sprintf("CREATE DATABASE %s", setting.Database.Name)); err != nil {
+			return err
+		}
+		db.Close()
+
+		// Check if we need to setup a specific schema
+		if len(setting.Database.Schema) != 0 {
+			db, err = sql.Open("postgres", fmt.Sprintf("postgres://%s:%s@%s/%s?sslmode=%s",
+				setting.Database.User, setting.Database.Passwd, setting.Database.Host, setting.Database.Name, setting.Database.SSLMode))
+			if err != nil {
+				return err
+			}
+			defer db.Close()
+
+			schrows, err := db.Query(fmt.Sprintf("SELECT 1 FROM information_schema.schemata WHERE schema_name = '%s'", setting.Database.Schema))
+			if err != nil {
+				return err
+			}
+			defer schrows.Close()
+
+			if !schrows.Next() {
+				// Create and setup a DB schema
+				_, err = db.Exec(fmt.Sprintf("CREATE SCHEMA %s", setting.Database.Schema))
+				if err != nil {
+					return err
+				}
+			}
+
+			// Make the user's default search path the created schema; this will affect new connections
+			_, err = db.Exec(fmt.Sprintf(`ALTER USER "%s" SET search_path = %s`, setting.Database.User, setting.Database.Schema))
+			if err != nil {
+				return err
+			}
+			return nil
+		}
+	}
+
+	return nil
+}
+
+func removeAllWithRetry(dir string) error {
+	var err error
+	for i := 0; i < 20; i++ {
+		err = os.RemoveAll(dir)
+		if err == nil {
+			break
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+	return err
+}
diff --git a/models/migrations/v1_10/v100.go b/models/migrations/v1_10/v100.go
new file mode 100644
index 0000000..5d2fd8e
--- /dev/null
+++ b/models/migrations/v1_10/v100.go
@@ -0,0 +1,82 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"net/url"
+	"strings"
+	"time"
+
+	"xorm.io/xorm"
+)
+
+func UpdateMigrationServiceTypes(x *xorm.Engine) error {
+	type Repository struct {
+		ID                  int64
+		OriginalServiceType int    `xorm:"index default(0)"`
+		OriginalURL         string `xorm:"VARCHAR(2048)"`
+	}
+
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+
+	var last int
+	const batchSize = 50
+	for {
+		results := make([]Repository, 0, batchSize)
+		err := x.Where("original_url <> '' AND original_url IS NOT NULL").
+			And("original_service_type = 0 OR original_service_type IS NULL").
+			OrderBy("id").
+			Limit(batchSize, last).
+			Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += len(results)
+
+		const PlainGitService = 1 // 1 plain git service
+		const GithubService = 2   // 2 github.com
+
+		for _, res := range results {
+			u, err := url.Parse(res.OriginalURL)
+			if err != nil {
+				return err
+			}
+			serviceType := PlainGitService
+			if strings.EqualFold(u.Host, "github.com") {
+				serviceType = GithubService
+			}
+			_, err = x.Exec("UPDATE repository SET original_service_type = ? WHERE id = ?", serviceType, res.ID)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	type ExternalLoginUser struct {
+		ExternalID        string         `xorm:"pk NOT NULL"`
+		UserID            int64          `xorm:"INDEX NOT NULL"`
+		LoginSourceID     int64          `xorm:"pk NOT NULL"`
+		RawData           map[string]any `xorm:"TEXT JSON"`
+		Provider          string         `xorm:"index VARCHAR(25)"`
+		Email             string
+		Name              string
+		FirstName         string
+		LastName          string
+		NickName          string
+		Description       string
+		AvatarURL         string
+		Location          string
+		AccessToken       string
+		AccessTokenSecret string
+		RefreshToken      string
+		ExpiresAt         time.Time
+	}
+
+	return x.Sync(new(ExternalLoginUser))
+}
diff --git a/models/migrations/v1_10/v101.go b/models/migrations/v1_10/v101.go
new file mode 100644
index 0000000..f023a2a
--- /dev/null
+++ b/models/migrations/v1_10/v101.go
@@ -0,0 +1,18 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func ChangeSomeColumnsLengthOfExternalLoginUser(x *xorm.Engine) error {
+	type ExternalLoginUser struct {
+		AccessToken       string `xorm:"TEXT"`
+		AccessTokenSecret string `xorm:"TEXT"`
+		RefreshToken      string `xorm:"TEXT"`
+	}
+
+	return x.Sync(new(ExternalLoginUser))
+}
diff --git a/models/migrations/v1_10/v88.go b/models/migrations/v1_10/v88.go
new file mode 100644
index 0000000..7e86ac3
--- /dev/null
+++ b/models/migrations/v1_10/v88.go
@@ -0,0 +1,65 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"crypto/sha1"
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func hashContext(context string) string {
+	return fmt.Sprintf("%x", sha1.Sum([]byte(context)))
+}
+
+func AddCommitStatusContext(x *xorm.Engine) error {
+	type CommitStatus struct {
+		ID          int64  `xorm:"pk autoincr"`
+		ContextHash string `xorm:"char(40) index"`
+		Context     string `xorm:"TEXT"`
+	}
+
+	if err := x.Sync(new(CommitStatus)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	start := 0
+	for {
+		statuses := make([]*CommitStatus, 0, 100)
+		err := sess.OrderBy("id").Limit(100, start).Find(&statuses)
+		if err != nil {
+			return err
+		}
+		if len(statuses) == 0 {
+			break
+		}
+
+		if err = sess.Begin(); err != nil {
+			return err
+		}
+
+		for _, status := range statuses {
+			status.ContextHash = hashContext(status.Context)
+			if _, err := sess.ID(status.ID).Cols("context_hash").Update(status); err != nil {
+				return err
+			}
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+
+		if len(statuses) < 100 {
+			break
+		}
+
+		start += len(statuses)
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_10/v89.go b/models/migrations/v1_10/v89.go
new file mode 100644
index 0000000..d5f27ff
--- /dev/null
+++ b/models/migrations/v1_10/v89.go
@@ -0,0 +1,35 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddOriginalMigrationInfo(x *xorm.Engine) error {
+	// Issue see models/issue.go
+	type Issue struct {
+		OriginalAuthor   string
+		OriginalAuthorID int64
+	}
+
+	if err := x.Sync(new(Issue)); err != nil {
+		return err
+	}
+
+	// Issue see models/issue_comment.go
+	type Comment struct {
+		OriginalAuthor   string
+		OriginalAuthorID int64
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return err
+	}
+
+	// Issue see models/repo.go
+	type Repository struct {
+		OriginalURL string
+	}
+
+	return x.Sync(new(Repository))
+}
diff --git a/models/migrations/v1_10/v90.go b/models/migrations/v1_10/v90.go
new file mode 100644
index 0000000..295d4b1
--- /dev/null
+++ b/models/migrations/v1_10/v90.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func ChangeSomeColumnsLengthOfRepo(x *xorm.Engine) error {
+	type Repository struct {
+		ID          int64  `xorm:"pk autoincr"`
+		Description string `xorm:"TEXT"`
+		Website     string `xorm:"VARCHAR(2048)"`
+		OriginalURL string `xorm:"VARCHAR(2048)"`
+	}
+
+	return x.Sync(new(Repository))
+}
diff --git a/models/migrations/v1_10/v91.go b/models/migrations/v1_10/v91.go
new file mode 100644
index 0000000..48cac2d
--- /dev/null
+++ b/models/migrations/v1_10/v91.go
@@ -0,0 +1,25 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddIndexOnRepositoryAndComment(x *xorm.Engine) error {
+	type Repository struct {
+		ID      int64 `xorm:"pk autoincr"`
+		OwnerID int64 `xorm:"index"`
+	}
+
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+
+	type Comment struct {
+		ID       int64 `xorm:"pk autoincr"`
+		Type     int   `xorm:"index"`
+		ReviewID int64 `xorm:"index"`
+	}
+
+	return x.Sync(new(Comment))
+}
diff --git a/models/migrations/v1_10/v92.go b/models/migrations/v1_10/v92.go
new file mode 100644
index 0000000..9080108
--- /dev/null
+++ b/models/migrations/v1_10/v92.go
@@ -0,0 +1,14 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func RemoveLingeringIndexStatus(x *xorm.Engine) error {
+	_, err := x.Exec(builder.Delete(builder.NotIn("`repo_id`", builder.Select("`id`").From("`repository`"))).From("`repo_indexer_status`"))
+	return err
+}
diff --git a/models/migrations/v1_10/v93.go b/models/migrations/v1_10/v93.go
new file mode 100644
index 0000000..ee59a8d
--- /dev/null
+++ b/models/migrations/v1_10/v93.go
@@ -0,0 +1,15 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddEmailNotificationEnabledToUser(x *xorm.Engine) error {
+	// User see models/user.go
+	type User struct {
+		EmailNotificationsPreference string `xorm:"VARCHAR(20) NOT NULL DEFAULT 'enabled'"`
+	}
+
+	return x.Sync(new(User))
+}
diff --git a/models/migrations/v1_10/v94.go b/models/migrations/v1_10/v94.go
new file mode 100644
index 0000000..c131af1
--- /dev/null
+++ b/models/migrations/v1_10/v94.go
@@ -0,0 +1,23 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddStatusCheckColumnsForProtectedBranches(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		EnableStatusCheck   bool     `xorm:"NOT NULL DEFAULT false"`
+		StatusCheckContexts []string `xorm:"JSON TEXT"`
+	}
+
+	if err := x.Sync(new(ProtectedBranch)); err != nil {
+		return err
+	}
+
+	_, err := x.Cols("enable_status_check", "status_check_contexts").Update(&ProtectedBranch{
+		EnableStatusCheck:   false,
+		StatusCheckContexts: []string{},
+	})
+	return err
+}
diff --git a/models/migrations/v1_10/v95.go b/models/migrations/v1_10/v95.go
new file mode 100644
index 0000000..3b1f67f
--- /dev/null
+++ b/models/migrations/v1_10/v95.go
@@ -0,0 +1,19 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddCrossReferenceColumns(x *xorm.Engine) error {
+	// Comment see models/comment.go
+	type Comment struct {
+		RefRepoID    int64 `xorm:"index"`
+		RefIssueID   int64 `xorm:"index"`
+		RefCommentID int64 `xorm:"index"`
+		RefAction    int64 `xorm:"SMALLINT"`
+		RefIsPull    bool
+	}
+
+	return x.Sync(new(Comment))
+}
diff --git a/models/migrations/v1_10/v96.go b/models/migrations/v1_10/v96.go
new file mode 100644
index 0000000..34c8240
--- /dev/null
+++ b/models/migrations/v1_10/v96.go
@@ -0,0 +1,64 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"path/filepath"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+)
+
+func DeleteOrphanedAttachments(x *xorm.Engine) error {
+	type Attachment struct {
+		ID        int64  `xorm:"pk autoincr"`
+		UUID      string `xorm:"uuid UNIQUE"`
+		IssueID   int64  `xorm:"INDEX"`
+		ReleaseID int64  `xorm:"INDEX"`
+		CommentID int64
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	for {
+		attachments := make([]Attachment, 0, limit)
+		if err := sess.Where("`issue_id` = 0 and (`release_id` = 0 or `release_id` not in (select `id` from `release`))").
+			Cols("id, uuid").Limit(limit).
+			Asc("id").
+			Find(&attachments); err != nil {
+			return err
+		}
+		if len(attachments) == 0 {
+			return nil
+		}
+
+		ids := make([]int64, 0, limit)
+		for _, attachment := range attachments {
+			ids = append(ids, attachment.ID)
+		}
+		if len(ids) > 0 {
+			if _, err := sess.In("id", ids).Delete(new(Attachment)); err != nil {
+				return err
+			}
+		}
+
+		for _, attachment := range attachments {
+			uuid := attachment.UUID
+			if err := util.RemoveAll(filepath.Join(setting.Attachment.Storage.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
+				return err
+			}
+		}
+		if len(attachments) < limit {
+			return nil
+		}
+	}
+}
diff --git a/models/migrations/v1_10/v97.go b/models/migrations/v1_10/v97.go
new file mode 100644
index 0000000..dee45b3
--- /dev/null
+++ b/models/migrations/v1_10/v97.go
@@ -0,0 +1,14 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddRepoAdminChangeTeamAccessColumnForUser(x *xorm.Engine) error {
+	type User struct {
+		RepoAdminChangeTeamAccess bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(User))
+}
diff --git a/models/migrations/v1_10/v98.go b/models/migrations/v1_10/v98.go
new file mode 100644
index 0000000..bdd9aed
--- /dev/null
+++ b/models/migrations/v1_10/v98.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import "xorm.io/xorm"
+
+func AddOriginalAuthorOnMigratedReleases(x *xorm.Engine) error {
+	type Release struct {
+		ID               int64
+		OriginalAuthor   string
+		OriginalAuthorID int64 `xorm:"index"`
+	}
+
+	return x.Sync(new(Release))
+}
diff --git a/models/migrations/v1_10/v99.go b/models/migrations/v1_10/v99.go
new file mode 100644
index 0000000..ebe6597
--- /dev/null
+++ b/models/migrations/v1_10/v99.go
@@ -0,0 +1,38 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_10 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddTaskTable(x *xorm.Engine) error {
+	// TaskType defines task type
+	type TaskType int
+
+	// TaskStatus defines task status
+	type TaskStatus int
+
+	type Task struct {
+		ID             int64
+		DoerID         int64 `xorm:"index"` // operator
+		OwnerID        int64 `xorm:"index"` // repo owner id, when creating, the repoID maybe zero
+		RepoID         int64 `xorm:"index"`
+		Type           TaskType
+		Status         TaskStatus `xorm:"index"`
+		StartTime      timeutil.TimeStamp
+		EndTime        timeutil.TimeStamp
+		PayloadContent string             `xorm:"TEXT"`
+		Errors         string             `xorm:"TEXT"` // if task failed, saved the error reason
+		Created        timeutil.TimeStamp `xorm:"created"`
+	}
+
+	type Repository struct {
+		Status int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(Task), new(Repository))
+}
diff --git a/models/migrations/v1_11/v102.go b/models/migrations/v1_11/v102.go
new file mode 100644
index 0000000..9358e4c
--- /dev/null
+++ b/models/migrations/v1_11/v102.go
@@ -0,0 +1,22 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func DropColumnHeadUserNameOnPullRequest(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "pull_request", "head_user_name"); err != nil {
+		return err
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_11/v103.go b/models/migrations/v1_11/v103.go
new file mode 100644
index 0000000..53527da
--- /dev/null
+++ b/models/migrations/v1_11/v103.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddWhitelistDeployKeysToBranches(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		ID                  int64
+		WhitelistDeployKeys bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_11/v104.go b/models/migrations/v1_11/v104.go
new file mode 100644
index 0000000..3e8ee64
--- /dev/null
+++ b/models/migrations/v1_11/v104.go
@@ -0,0 +1,34 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func RemoveLabelUneededCols(x *xorm.Engine) error {
+	// Make sure the columns exist before dropping them
+	type Label struct {
+		QueryString string
+		IsSelected  bool
+	}
+	if err := x.Sync(new(Label)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "label", "query_string"); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "label", "is_selected"); err != nil {
+		return err
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_11/v105.go b/models/migrations/v1_11/v105.go
new file mode 100644
index 0000000..b91340c
--- /dev/null
+++ b/models/migrations/v1_11/v105.go
@@ -0,0 +1,23 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddTeamIncludesAllRepositories(x *xorm.Engine) error {
+	type Team struct {
+		ID                      int64 `xorm:"pk autoincr"`
+		IncludesAllRepositories bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(Team)); err != nil {
+		return err
+	}
+
+	_, err := x.Exec("UPDATE `team` SET `includes_all_repositories` = ? WHERE `name`=?",
+		true, "Owners")
+	return err
+}
diff --git a/models/migrations/v1_11/v106.go b/models/migrations/v1_11/v106.go
new file mode 100644
index 0000000..ecb11cd
--- /dev/null
+++ b/models/migrations/v1_11/v106.go
@@ -0,0 +1,25 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// RepoWatchMode specifies what kind of watch the user has on a repository
+type RepoWatchMode int8
+
+// Watch is connection request for receiving repository notification.
+type Watch struct {
+	ID   int64         `xorm:"pk autoincr"`
+	Mode RepoWatchMode `xorm:"SMALLINT NOT NULL DEFAULT 1"`
+}
+
+func AddModeColumnToWatch(x *xorm.Engine) error {
+	if err := x.Sync(new(Watch)); err != nil {
+		return err
+	}
+	_, err := x.Exec("UPDATE `watch` SET `mode` = 1")
+	return err
+}
diff --git a/models/migrations/v1_11/v107.go b/models/migrations/v1_11/v107.go
new file mode 100644
index 0000000..f0bfe58
--- /dev/null
+++ b/models/migrations/v1_11/v107.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddTemplateToRepo(x *xorm.Engine) error {
+	type Repository struct {
+		IsTemplate bool  `xorm:"INDEX NOT NULL DEFAULT false"`
+		TemplateID int64 `xorm:"INDEX"`
+	}
+
+	return x.Sync(new(Repository))
+}
diff --git a/models/migrations/v1_11/v108.go b/models/migrations/v1_11/v108.go
new file mode 100644
index 0000000..a850962
--- /dev/null
+++ b/models/migrations/v1_11/v108.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddCommentIDOnNotification(x *xorm.Engine) error {
+	type Notification struct {
+		ID        int64 `xorm:"pk autoincr"`
+		CommentID int64
+	}
+
+	return x.Sync(new(Notification))
+}
diff --git a/models/migrations/v1_11/v109.go b/models/migrations/v1_11/v109.go
new file mode 100644
index 0000000..ea565cc
--- /dev/null
+++ b/models/migrations/v1_11/v109.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddCanCreateOrgRepoColumnForTeam(x *xorm.Engine) error {
+	type Team struct {
+		CanCreateOrgRepo bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(Team))
+}
diff --git a/models/migrations/v1_11/v110.go b/models/migrations/v1_11/v110.go
new file mode 100644
index 0000000..fce9be8
--- /dev/null
+++ b/models/migrations/v1_11/v110.go
@@ -0,0 +1,26 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func ChangeReviewContentToText(x *xorm.Engine) error {
+	switch x.Dialect().URI().DBType {
+	case schemas.MYSQL:
+		_, err := x.Exec("ALTER TABLE review MODIFY COLUMN content TEXT")
+		return err
+	case schemas.ORACLE:
+		_, err := x.Exec("ALTER TABLE review MODIFY content TEXT")
+		return err
+	case schemas.POSTGRES:
+		_, err := x.Exec("ALTER TABLE review ALTER COLUMN content TYPE TEXT")
+		return err
+	default:
+		// SQLite doesn't support ALTER COLUMN, and it seem to already make String to _TEXT_ default so no migration needed
+		return nil
+	}
+}
diff --git a/models/migrations/v1_11/v111.go b/models/migrations/v1_11/v111.go
new file mode 100644
index 0000000..cc3dc0d
--- /dev/null
+++ b/models/migrations/v1_11/v111.go
@@ -0,0 +1,437 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddBranchProtectionCanPushAndEnableWhitelist(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		CanPush                   bool    `xorm:"NOT NULL DEFAULT false"`
+		EnableApprovalsWhitelist  bool    `xorm:"NOT NULL DEFAULT false"`
+		ApprovalsWhitelistUserIDs []int64 `xorm:"JSON TEXT"`
+		ApprovalsWhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
+		RequiredApprovals         int64   `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	type User struct {
+		ID   int64 `xorm:"pk autoincr"`
+		Type int
+
+		// Permissions
+		IsAdmin bool
+		// IsRestricted bool `xorm:"NOT NULL DEFAULT false"` glitch: this column was added in v1_12/v121.go
+		// Visibility int `xorm:"NOT NULL DEFAULT 0"` glitch: this column was added in v1_12/v124.go
+	}
+
+	type Review struct {
+		ID       int64 `xorm:"pk autoincr"`
+		Official bool  `xorm:"NOT NULL DEFAULT false"`
+
+		ReviewerID int64 `xorm:"index"`
+		IssueID    int64 `xorm:"index"`
+	}
+
+	if err := x.Sync(new(ProtectedBranch)); err != nil {
+		return err
+	}
+
+	if err := x.Sync(new(Review)); err != nil {
+		return err
+	}
+
+	const (
+		// ReviewTypeApprove approves changes
+		ReviewTypeApprove int = 1
+		// ReviewTypeReject gives feedback blocking merge
+		ReviewTypeReject int = 3
+
+		// VisibleTypePublic Visible for everyone
+		// VisibleTypePublic int = 0
+		// VisibleTypePrivate Visible only for organization's members
+		// VisibleTypePrivate int = 2
+
+		// unit.UnitTypeCode is unit type code
+		UnitTypeCode int = 1
+
+		// AccessModeNone no access
+		AccessModeNone int = 0
+		// AccessModeRead read access
+		AccessModeRead int = 1
+		// AccessModeWrite write access
+		AccessModeWrite int = 2
+		// AccessModeOwner owner access
+		AccessModeOwner int = 4
+	)
+
+	// Repository represents a git repository.
+	type Repository struct {
+		ID      int64 `xorm:"pk autoincr"`
+		OwnerID int64 `xorm:"UNIQUE(s) index"`
+
+		IsPrivate bool `xorm:"INDEX"`
+	}
+
+	type PullRequest struct {
+		ID int64 `xorm:"pk autoincr"`
+
+		BaseRepoID int64 `xorm:"INDEX"`
+		BaseBranch string
+	}
+
+	// RepoUnit describes all units of a repository
+	type RepoUnit struct {
+		ID     int64
+		RepoID int64 `xorm:"INDEX(s)"`
+		Type   int   `xorm:"INDEX(s)"`
+	}
+
+	type Permission struct {
+		AccessMode int
+		Units      []*RepoUnit
+		UnitsMode  map[int]int
+	}
+
+	type TeamUser struct {
+		ID     int64 `xorm:"pk autoincr"`
+		TeamID int64 `xorm:"UNIQUE(s)"`
+		UID    int64 `xorm:"UNIQUE(s)"`
+	}
+
+	type Collaboration struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		UserID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Mode   int   `xorm:"DEFAULT 2 NOT NULL"`
+	}
+
+	type Access struct {
+		ID     int64 `xorm:"pk autoincr"`
+		UserID int64 `xorm:"UNIQUE(s)"`
+		RepoID int64 `xorm:"UNIQUE(s)"`
+		Mode   int
+	}
+
+	type TeamUnit struct {
+		ID     int64 `xorm:"pk autoincr"`
+		OrgID  int64 `xorm:"INDEX"`
+		TeamID int64 `xorm:"UNIQUE(s)"`
+		Type   int   `xorm:"UNIQUE(s)"`
+	}
+
+	// Team represents a organization team.
+	type Team struct {
+		ID        int64 `xorm:"pk autoincr"`
+		OrgID     int64 `xorm:"INDEX"`
+		Authorize int
+	}
+
+	// getUserRepoPermission static function based on issues_model.IsOfficialReviewer at 5d78792385
+	getUserRepoPermission := func(sess *xorm.Session, repo *Repository, user *User) (Permission, error) {
+		var perm Permission
+
+		repoOwner := new(User)
+		has, err := sess.ID(repo.OwnerID).Get(repoOwner)
+		if err != nil || !has {
+			return perm, err
+		}
+
+		// Prevent strangers from checking out public repo of private organization
+		// Allow user if they are collaborator of a repo within a private organization but not a member of the organization itself
+		hasOrgVisible := true
+		// Not SignedUser
+		if user == nil {
+			// hasOrgVisible = repoOwner.Visibility == VisibleTypePublic // VisibleTypePublic is the default
+		} else if !user.IsAdmin {
+			_, err := sess.
+				Where("uid=?", user.ID).
+				And("org_id=?", repoOwner.ID).
+				Table("org_user").
+				Exist()
+			if err != nil {
+				hasOrgVisible = false
+			}
+			// VisibleTypePublic is the default so the condition below is always false
+			// if (repoOwner.Visibility == VisibleTypePrivate) && !hasMemberWithUserID {
+			// 	hasOrgVisible = false
+			// }
+		}
+
+		isCollaborator, err := sess.Get(&Collaboration{RepoID: repo.ID, UserID: user.ID})
+		if err != nil {
+			return perm, err
+		}
+
+		if repoOwner.Type == 1 && !hasOrgVisible && !isCollaborator {
+			perm.AccessMode = AccessModeNone
+			return perm, err
+		}
+
+		var units []*RepoUnit
+		if err := sess.Where("repo_id = ?", repo.ID).Find(&units); err != nil {
+			return perm, err
+		}
+		perm.Units = units
+
+		// anonymous visit public repo
+		if user == nil {
+			perm.AccessMode = AccessModeRead
+			return perm, err
+		}
+
+		// Admin or the owner has super access to the repository
+		if user.IsAdmin || user.ID == repo.OwnerID {
+			perm.AccessMode = AccessModeOwner
+			return perm, err
+		}
+
+		accessLevel := func(user *User, repo *Repository) (int, error) {
+			mode := AccessModeNone
+			var userID int64
+			restricted := false
+
+			if user != nil {
+				userID = user.ID
+				restricted = false
+			}
+
+			if !restricted && !repo.IsPrivate {
+				mode = AccessModeRead
+			}
+
+			if userID == 0 {
+				return mode, nil
+			}
+
+			if userID == repo.OwnerID {
+				return AccessModeOwner, nil
+			}
+
+			a := &Access{UserID: userID, RepoID: repo.ID}
+			if has, err := sess.Get(a); !has || err != nil {
+				return mode, err
+			}
+			return a.Mode, nil
+		}
+
+		// plain user
+		perm.AccessMode, err = accessLevel(user, repo)
+		if err != nil {
+			return perm, err
+		}
+
+		// If Owner is no Org
+		if repoOwner.Type != 1 {
+			return perm, err
+		}
+
+		perm.UnitsMode = make(map[int]int)
+
+		// Collaborators on organization
+		if isCollaborator {
+			for _, u := range units {
+				perm.UnitsMode[u.Type] = perm.AccessMode
+			}
+		}
+
+		// get units mode from teams
+		var teams []*Team
+		err = sess.
+			Join("INNER", "team_user", "team_user.team_id = team.id").
+			Join("INNER", "team_repo", "team_repo.team_id = team.id").
+			Where("team.org_id = ?", repo.OwnerID).
+			And("team_user.uid=?", user.ID).
+			And("team_repo.repo_id=?", repo.ID).
+			Find(&teams)
+		if err != nil {
+			return perm, err
+		}
+
+		// if user in an owner team
+		for _, team := range teams {
+			if team.Authorize >= AccessModeOwner {
+				perm.AccessMode = AccessModeOwner
+				perm.UnitsMode = nil
+				return perm, err
+			}
+		}
+
+		for _, u := range units {
+			var found bool
+			for _, team := range teams {
+				var teamU []*TeamUnit
+				var unitEnabled bool
+				err = sess.Where("team_id = ?", team.ID).Find(&teamU)
+
+				for _, tu := range teamU {
+					if tu.Type == u.Type {
+						unitEnabled = true
+						break
+					}
+				}
+
+				if unitEnabled {
+					m := perm.UnitsMode[u.Type]
+					if m < team.Authorize {
+						perm.UnitsMode[u.Type] = team.Authorize
+					}
+					found = true
+				}
+			}
+
+			// for a public repo on an organization, a non-restricted user has read permission on non-team defined units.
+			if !found && !repo.IsPrivate {
+				if _, ok := perm.UnitsMode[u.Type]; !ok {
+					perm.UnitsMode[u.Type] = AccessModeRead
+				}
+			}
+		}
+
+		// remove no permission units
+		perm.Units = make([]*RepoUnit, 0, len(units))
+		for t := range perm.UnitsMode {
+			for _, u := range units {
+				if u.Type == t {
+					perm.Units = append(perm.Units, u)
+				}
+			}
+		}
+
+		return perm, err
+	}
+
+	// isOfficialReviewer static function based on 5d78792385
+	isOfficialReviewer := func(sess *xorm.Session, issueID int64, reviewer *User) (bool, error) {
+		pr := new(PullRequest)
+		has, err := sess.ID(issueID).Get(pr)
+		if err != nil {
+			return false, err
+		} else if !has {
+			return false, fmt.Errorf("PullRequest for issueID %d not exist", issueID)
+		}
+
+		baseRepo := new(Repository)
+		has, err = sess.ID(pr.BaseRepoID).Get(baseRepo)
+		if err != nil {
+			return false, err
+		} else if !has {
+			return false, fmt.Errorf("baseRepo with id %d not exist", pr.BaseRepoID)
+		}
+		protectedBranch := new(ProtectedBranch)
+		has, err = sess.Where("repo_id=? AND branch_name=?", baseRepo.ID, pr.BaseBranch).Get(protectedBranch)
+		if err != nil {
+			return false, err
+		}
+		if !has {
+			return false, nil
+		}
+
+		if !protectedBranch.EnableApprovalsWhitelist {
+			perm, err := getUserRepoPermission(sess, baseRepo, reviewer)
+			if err != nil {
+				return false, err
+			}
+			if perm.UnitsMode == nil {
+				for _, u := range perm.Units {
+					if u.Type == UnitTypeCode {
+						return AccessModeWrite <= perm.AccessMode, nil
+					}
+				}
+				return false, nil
+			}
+			return AccessModeWrite <= perm.UnitsMode[UnitTypeCode], nil
+		}
+		for _, id := range protectedBranch.ApprovalsWhitelistUserIDs {
+			if id == reviewer.ID {
+				return true, nil
+			}
+		}
+
+		// isUserInTeams
+		return sess.Where("uid=?", reviewer.ID).In("team_id", protectedBranch.ApprovalsWhitelistTeamIDs).Exist(new(TeamUser))
+	}
+
+	if _, err := x.Exec("UPDATE `protected_branch` SET `enable_whitelist` = ? WHERE enable_whitelist IS NULL", false); err != nil {
+		return err
+	}
+	if _, err := x.Exec("UPDATE `protected_branch` SET `can_push` = `enable_whitelist`"); err != nil {
+		return err
+	}
+	if _, err := x.Exec("UPDATE `protected_branch` SET `enable_approvals_whitelist` = ? WHERE `required_approvals` > ?", true, 0); err != nil {
+		return err
+	}
+
+	var pageSize int64 = 20
+	qresult, err := x.QueryInterface("SELECT max(id) as max_id FROM issue")
+	if err != nil {
+		return err
+	}
+	var totalIssues int64
+	totalIssues, ok := qresult[0]["max_id"].(int64)
+	if !ok {
+		// If there are no issues at all we ignore it
+		return nil
+	}
+	totalPages := totalIssues / pageSize
+
+	executeBody := func(page, pageSize int64) error {
+		// Find latest review of each user in each pull request, and set official field if appropriate
+		reviews := []*Review{}
+
+		if err := x.SQL("SELECT * FROM review WHERE id IN (SELECT max(id) as id FROM review WHERE issue_id > ? AND issue_id <= ? AND type in (?, ?) GROUP BY issue_id, reviewer_id)",
+			page*pageSize, (page+1)*pageSize, ReviewTypeApprove, ReviewTypeReject).
+			Find(&reviews); err != nil {
+			return err
+		}
+
+		if len(reviews) == 0 {
+			return nil
+		}
+
+		sess := x.NewSession()
+		defer sess.Close()
+
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		var updated int
+		for _, review := range reviews {
+			reviewer := new(User)
+			has, err := sess.ID(review.ReviewerID).Get(reviewer)
+			if err != nil || !has {
+				// Error might occur if user doesn't exist, ignore it.
+				continue
+			}
+
+			official, err := isOfficialReviewer(sess, review.IssueID, reviewer)
+			if err != nil {
+				// Branch might not be proteced or other error, ignore it.
+				continue
+			}
+			review.Official = official
+			updated++
+			if _, err := sess.ID(review.ID).Cols("official").Update(review); err != nil {
+				return err
+			}
+		}
+
+		if updated > 0 {
+			return sess.Commit()
+		}
+		return nil
+	}
+
+	var page int64
+	for page = 0; page <= totalPages; page++ {
+		if err := executeBody(page, pageSize); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_11/v112.go b/models/migrations/v1_11/v112.go
new file mode 100644
index 0000000..0857663
--- /dev/null
+++ b/models/migrations/v1_11/v112.go
@@ -0,0 +1,47 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func RemoveAttachmentMissedRepo(x *xorm.Engine) error {
+	type Attachment struct {
+		UUID string `xorm:"uuid"`
+	}
+	var start int
+	attachments := make([]*Attachment, 0, 50)
+	for {
+		err := x.Select("uuid").Where(builder.NotIn("release_id", builder.Select("id").From("`release`"))).
+			And("release_id > 0").
+			OrderBy("id").Limit(50, start).Find(&attachments)
+		if err != nil {
+			return err
+		}
+
+		for i := 0; i < len(attachments); i++ {
+			uuid := attachments[i].UUID
+			if err = util.RemoveAll(filepath.Join(setting.Attachment.Storage.Path, uuid[0:1], uuid[1:2], uuid)); err != nil {
+				fmt.Printf("Error: %v", err) //nolint:forbidigo
+			}
+		}
+
+		if len(attachments) < 50 {
+			break
+		}
+		start += 50
+		attachments = attachments[:0]
+	}
+
+	_, err := x.Exec("DELETE FROM attachment WHERE release_id > 0 AND release_id NOT IN (SELECT id FROM `release`)")
+	return err
+}
diff --git a/models/migrations/v1_11/v113.go b/models/migrations/v1_11/v113.go
new file mode 100644
index 0000000..dea344a
--- /dev/null
+++ b/models/migrations/v1_11/v113.go
@@ -0,0 +1,22 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func FeatureChangeTargetBranch(x *xorm.Engine) error {
+	type Comment struct {
+		OldRef string
+		NewRef string
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_11/v114.go b/models/migrations/v1_11/v114.go
new file mode 100644
index 0000000..95adcee
--- /dev/null
+++ b/models/migrations/v1_11/v114.go
@@ -0,0 +1,50 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"net/url"
+
+	"xorm.io/xorm"
+)
+
+func SanitizeOriginalURL(x *xorm.Engine) error {
+	type Repository struct {
+		ID          int64
+		OriginalURL string `xorm:"VARCHAR(2048)"`
+	}
+
+	var last int
+	const batchSize = 50
+	for {
+		results := make([]Repository, 0, batchSize)
+		err := x.Where("original_url <> '' AND original_url IS NOT NULL").
+			And("original_service_type = 0 OR original_service_type IS NULL").
+			OrderBy("id").
+			Limit(batchSize, last).
+			Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += len(results)
+
+		for _, res := range results {
+			u, err := url.Parse(res.OriginalURL)
+			if err != nil {
+				// it is ok to continue here, we only care about fixing URLs that we can read
+				continue
+			}
+			u.User = nil
+			originalURL := u.String()
+			_, err = x.Exec("UPDATE repository SET original_url = ? WHERE id = ?", originalURL, res.ID)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
diff --git a/models/migrations/v1_11/v115.go b/models/migrations/v1_11/v115.go
new file mode 100644
index 0000000..8c631cf
--- /dev/null
+++ b/models/migrations/v1_11/v115.go
@@ -0,0 +1,159 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"crypto/md5"
+	"fmt"
+	"io"
+	"math"
+	"os"
+	"path/filepath"
+	"time"
+
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+)
+
+func RenameExistingUserAvatarName(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	type User struct {
+		ID        int64  `xorm:"pk autoincr"`
+		LowerName string `xorm:"UNIQUE NOT NULL"`
+		Avatar    string
+	}
+
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+
+	count, err := x.Count(new(User))
+	if err != nil {
+		return err
+	}
+	log.Info("%d User Avatar(s) to migrate ...", count)
+
+	deleteList := make(container.Set[string])
+	start := 0
+	migrated := 0
+	for {
+		if err := sess.Begin(); err != nil {
+			return fmt.Errorf("session.Begin: %w", err)
+		}
+		users := make([]*User, 0, 50)
+		if err := sess.Table("user").Asc("id").Limit(50, start).Find(&users); err != nil {
+			return fmt.Errorf("select users from id [%d]: %w", start, err)
+		}
+		if len(users) == 0 {
+			_ = sess.Rollback()
+			break
+		}
+
+		log.Info("select users [%d - %d]", start, start+len(users))
+		start += 50
+
+		for _, user := range users {
+			oldAvatar := user.Avatar
+
+			if stat, err := os.Stat(filepath.Join(setting.Avatar.Storage.Path, oldAvatar)); err != nil || !stat.Mode().IsRegular() {
+				if err == nil {
+					err = fmt.Errorf("Error: \"%s\" is not a regular file", oldAvatar)
+				}
+				log.Warn("[user: %s] os.Stat: %v", user.LowerName, err)
+				// avatar doesn't exist in the storage
+				// no need to move avatar and update database
+				// we can just skip this
+				continue
+			}
+
+			newAvatar, err := copyOldAvatarToNewLocation(user.ID, oldAvatar)
+			if err != nil {
+				_ = sess.Rollback()
+				return fmt.Errorf("[user: %s] %w", user.LowerName, err)
+			} else if newAvatar == oldAvatar {
+				continue
+			}
+
+			user.Avatar = newAvatar
+			if _, err := sess.ID(user.ID).Cols("avatar").Update(user); err != nil {
+				_ = sess.Rollback()
+				return fmt.Errorf("[user: %s] user table update: %w", user.LowerName, err)
+			}
+
+			deleteList.Add(filepath.Join(setting.Avatar.Storage.Path, oldAvatar))
+			migrated++
+			select {
+			case <-ticker.C:
+				log.Info(
+					"%d/%d (%2.0f%%) User Avatar(s) migrated (%d old avatars to be deleted) in %d batches. %d Remaining ...",
+					migrated,
+					count,
+					float64(migrated)/float64(count)*100,
+					len(deleteList),
+					int(math.Ceil(float64(migrated)/float64(50))),
+					count-int64(migrated))
+			default:
+			}
+		}
+		if err := sess.Commit(); err != nil {
+			_ = sess.Rollback()
+			return fmt.Errorf("commit session: %w", err)
+		}
+	}
+
+	deleteCount := len(deleteList)
+	log.Info("Deleting %d old avatars ...", deleteCount)
+	i := 0
+	for file := range deleteList {
+		if err := util.Remove(file); err != nil {
+			log.Warn("util.Remove: %v", err)
+		}
+		i++
+		select {
+		case <-ticker.C:
+			log.Info(
+				"%d/%d (%2.0f%%) Old User Avatar(s) deleted. %d Remaining ...",
+				i,
+				deleteCount,
+				float64(i)/float64(deleteCount)*100,
+				deleteCount-i)
+		default:
+		}
+	}
+
+	log.Info("Completed migrating %d User Avatar(s) and deleting %d Old Avatars", count, deleteCount)
+
+	return nil
+}
+
+// copyOldAvatarToNewLocation copies oldAvatar to newAvatarLocation
+// and returns newAvatar location
+func copyOldAvatarToNewLocation(userID int64, oldAvatar string) (string, error) {
+	fr, err := os.Open(filepath.Join(setting.Avatar.Storage.Path, oldAvatar))
+	if err != nil {
+		return "", fmt.Errorf("os.Open: %w", err)
+	}
+	defer fr.Close()
+
+	data, err := io.ReadAll(fr)
+	if err != nil {
+		return "", fmt.Errorf("io.ReadAll: %w", err)
+	}
+
+	newAvatar := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("%d-%x", userID, md5.Sum(data)))))
+	if newAvatar == oldAvatar {
+		return newAvatar, nil
+	}
+
+	if err := os.WriteFile(filepath.Join(setting.Avatar.Storage.Path, newAvatar), data, 0o666); err != nil {
+		return "", fmt.Errorf("os.WriteFile: %w", err)
+	}
+
+	return newAvatar, nil
+}
diff --git a/models/migrations/v1_11/v116.go b/models/migrations/v1_11/v116.go
new file mode 100644
index 0000000..85aa76c
--- /dev/null
+++ b/models/migrations/v1_11/v116.go
@@ -0,0 +1,32 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_11 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func ExtendTrackedTimes(x *xorm.Engine) error {
+	type TrackedTime struct {
+		Time    int64 `xorm:"NOT NULL"`
+		Deleted bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if _, err := sess.Exec("DELETE FROM tracked_time WHERE time IS NULL"); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(TrackedTime)); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_12/v117.go b/models/migrations/v1_12/v117.go
new file mode 100644
index 0000000..8eadcde
--- /dev/null
+++ b/models/migrations/v1_12/v117.go
@@ -0,0 +1,16 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddBlockOnRejectedReviews(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		BlockOnRejectedReviews bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_12/v118.go b/models/migrations/v1_12/v118.go
new file mode 100644
index 0000000..eb022dc
--- /dev/null
+++ b/models/migrations/v1_12/v118.go
@@ -0,0 +1,25 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddReviewCommitAndStale(x *xorm.Engine) error {
+	type Review struct {
+		CommitID string `xorm:"VARCHAR(40)"`
+		Stale    bool   `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	type ProtectedBranch struct {
+		DismissStaleApprovals bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	// Old reviews will have commit ID set to "" and not stale
+	if err := x.Sync(new(Review)); err != nil {
+		return err
+	}
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_12/v119.go b/models/migrations/v1_12/v119.go
new file mode 100644
index 0000000..60bfe6a
--- /dev/null
+++ b/models/migrations/v1_12/v119.go
@@ -0,0 +1,15 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func FixMigratedRepositoryServiceType(x *xorm.Engine) error {
+	// structs.GithubService:
+	// GithubService = 2
+	_, err := x.Exec("UPDATE repository SET original_service_type = ? WHERE original_url LIKE 'https://github.com/%'", 2)
+	return err
+}
diff --git a/models/migrations/v1_12/v120.go b/models/migrations/v1_12/v120.go
new file mode 100644
index 0000000..3f7ed8d
--- /dev/null
+++ b/models/migrations/v1_12/v120.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddOwnerNameOnRepository(x *xorm.Engine) error {
+	type Repository struct {
+		OwnerName string
+	}
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+	_, err := x.Exec("UPDATE repository SET owner_name = (SELECT name FROM `user` WHERE `user`.id = repository.owner_id)")
+	return err
+}
diff --git a/models/migrations/v1_12/v121.go b/models/migrations/v1_12/v121.go
new file mode 100644
index 0000000..175ec91
--- /dev/null
+++ b/models/migrations/v1_12/v121.go
@@ -0,0 +1,16 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import "xorm.io/xorm"
+
+func AddIsRestricted(x *xorm.Engine) error {
+	// User see models/user.go
+	type User struct {
+		ID           int64 `xorm:"pk autoincr"`
+		IsRestricted bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(User))
+}
diff --git a/models/migrations/v1_12/v122.go b/models/migrations/v1_12/v122.go
new file mode 100644
index 0000000..6e31d86
--- /dev/null
+++ b/models/migrations/v1_12/v122.go
@@ -0,0 +1,16 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddRequireSignedCommits(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		RequireSignedCommits bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_12/v123.go b/models/migrations/v1_12/v123.go
new file mode 100644
index 0000000..b0c3af0
--- /dev/null
+++ b/models/migrations/v1_12/v123.go
@@ -0,0 +1,17 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddReactionOriginals(x *xorm.Engine) error {
+	type Reaction struct {
+		OriginalAuthorID int64 `xorm:"INDEX NOT NULL DEFAULT(0)"`
+		OriginalAuthor   string
+	}
+
+	return x.Sync(new(Reaction))
+}
diff --git a/models/migrations/v1_12/v124.go b/models/migrations/v1_12/v124.go
new file mode 100644
index 0000000..d2ba03f
--- /dev/null
+++ b/models/migrations/v1_12/v124.go
@@ -0,0 +1,23 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddUserRepoMissingColumns(x *xorm.Engine) error {
+	type VisibleType int
+	type User struct {
+		PasswdHashAlgo string      `xorm:"NOT NULL DEFAULT 'pbkdf2'"`
+		Visibility     VisibleType `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	type Repository struct {
+		IsArchived bool     `xorm:"INDEX"`
+		Topics     []string `xorm:"TEXT JSON"`
+	}
+
+	return x.Sync(new(User), new(Repository))
+}
diff --git a/models/migrations/v1_12/v125.go b/models/migrations/v1_12/v125.go
new file mode 100644
index 0000000..ec4ffaa
--- /dev/null
+++ b/models/migrations/v1_12/v125.go
@@ -0,0 +1,22 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddReviewMigrateInfo(x *xorm.Engine) error {
+	type Review struct {
+		OriginalAuthor   string
+		OriginalAuthorID int64
+	}
+
+	if err := x.Sync(new(Review)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v126.go b/models/migrations/v1_12/v126.go
new file mode 100644
index 0000000..ca9ec3a
--- /dev/null
+++ b/models/migrations/v1_12/v126.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func FixTopicRepositoryCount(x *xorm.Engine) error {
+	_, err := x.Exec(builder.Delete(builder.NotIn("`repo_id`", builder.Select("`id`").From("`repository`"))).From("`repo_topic`"))
+	if err != nil {
+		return err
+	}
+
+	_, err = x.Exec(builder.Update(
+		builder.Eq{
+			"`repo_count`": builder.Select("count(*)").From("`repo_topic`").Where(builder.Eq{
+				"`repo_topic`.`topic_id`": builder.Expr("`topic`.`id`"),
+			}),
+		}).From("`topic`").Where(builder.Eq{"'1'": "1"}))
+	return err
+}
diff --git a/models/migrations/v1_12/v127.go b/models/migrations/v1_12/v127.go
new file mode 100644
index 0000000..00e391d
--- /dev/null
+++ b/models/migrations/v1_12/v127.go
@@ -0,0 +1,44 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddLanguageStats(x *xorm.Engine) error {
+	// LanguageStat see models/repo_language_stats.go
+	type LanguageStat struct {
+		ID          int64 `xorm:"pk autoincr"`
+		RepoID      int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		CommitID    string
+		IsPrimary   bool
+		Language    string             `xorm:"VARCHAR(30) UNIQUE(s) INDEX NOT NULL"`
+		Percentage  float32            `xorm:"NUMERIC(5,2) NOT NULL DEFAULT 0"`
+		Color       string             `xorm:"-"`
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX CREATED"`
+	}
+
+	type RepoIndexerType int
+
+	// RepoIndexerStatus see models/repo_stats_indexer.go
+	type RepoIndexerStatus struct {
+		ID          int64           `xorm:"pk autoincr"`
+		RepoID      int64           `xorm:"INDEX(s)"`
+		CommitSha   string          `xorm:"VARCHAR(40)"`
+		IndexerType RepoIndexerType `xorm:"INDEX(s) NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(LanguageStat)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	if err := x.Sync(new(RepoIndexerStatus)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v128.go b/models/migrations/v1_12/v128.go
new file mode 100644
index 0000000..6eea133
--- /dev/null
+++ b/models/migrations/v1_12/v128.go
@@ -0,0 +1,127 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+	"math"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func FixMergeBase(x *xorm.Engine) error {
+	type Repository struct {
+		ID        int64 `xorm:"pk autoincr"`
+		OwnerID   int64 `xorm:"UNIQUE(s) index"`
+		OwnerName string
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name      string `xorm:"INDEX NOT NULL"`
+	}
+
+	type PullRequest struct {
+		ID         int64 `xorm:"pk autoincr"`
+		Index      int64
+		HeadRepoID int64 `xorm:"INDEX"`
+		BaseRepoID int64 `xorm:"INDEX"`
+		HeadBranch string
+		BaseBranch string
+		MergeBase  string `xorm:"VARCHAR(40)"`
+
+		HasMerged      bool   `xorm:"INDEX"`
+		MergedCommitID string `xorm:"VARCHAR(40)"`
+	}
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+
+	count, err := x.Count(new(PullRequest))
+	if err != nil {
+		return err
+	}
+	log.Info("%d Pull Request(s) to migrate ...", count)
+
+	i := 0
+	start := 0
+	for {
+		prs := make([]PullRequest, 0, 50)
+		if err := x.Limit(limit, start).Asc("id").Find(&prs); err != nil {
+			return fmt.Errorf("Find: %w", err)
+		}
+		if len(prs) == 0 {
+			break
+		}
+
+		start += 50
+		for _, pr := range prs {
+			baseRepo := &Repository{ID: pr.BaseRepoID}
+			has, err := x.Table("repository").Get(baseRepo)
+			if err != nil {
+				return fmt.Errorf("Unable to get base repo %d %w", pr.BaseRepoID, err)
+			}
+			if !has {
+				log.Error("Missing base repo with id %d for PR ID %d", pr.BaseRepoID, pr.ID)
+				continue
+			}
+			userPath := filepath.Join(setting.RepoRootPath, strings.ToLower(baseRepo.OwnerName))
+			repoPath := filepath.Join(userPath, strings.ToLower(baseRepo.Name)+".git")
+
+			gitRefName := fmt.Sprintf("refs/pull/%d/head", pr.Index)
+
+			if !pr.HasMerged {
+				var err error
+				pr.MergeBase, _, err = git.NewCommand(git.DefaultContext, "merge-base").AddDashesAndList(pr.BaseBranch, gitRefName).RunStdString(&git.RunOpts{Dir: repoPath})
+				if err != nil {
+					var err2 error
+					pr.MergeBase, _, err2 = git.NewCommand(git.DefaultContext, "rev-parse").AddDynamicArguments(git.BranchPrefix + pr.BaseBranch).RunStdString(&git.RunOpts{Dir: repoPath})
+					if err2 != nil {
+						log.Error("Unable to get merge base for PR ID %d, Index %d in %s/%s. Error: %v & %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err, err2)
+						continue
+					}
+				}
+			} else {
+				parentsString, _, err := git.NewCommand(git.DefaultContext, "rev-list", "--parents", "-n", "1").AddDynamicArguments(pr.MergedCommitID).RunStdString(&git.RunOpts{Dir: repoPath})
+				if err != nil {
+					log.Warn("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+					continue
+				}
+				parents := strings.Split(strings.TrimSpace(parentsString), " ")
+				if len(parents) < 2 {
+					continue
+				}
+
+				refs := append([]string{}, parents[1:]...)
+				refs = append(refs, gitRefName)
+				cmd := git.NewCommand(git.DefaultContext, "merge-base").AddDashesAndList(refs...)
+
+				pr.MergeBase, _, err = cmd.RunStdString(&git.RunOpts{Dir: repoPath})
+				if err != nil {
+					log.Error("Unable to get merge base for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+					continue
+				}
+			}
+			pr.MergeBase = strings.TrimSpace(pr.MergeBase)
+			x.ID(pr.ID).Cols("merge_base").Update(pr)
+			i++
+			select {
+			case <-ticker.C:
+				log.Info("%d/%d (%2.0f%%) Pull Request(s) migrated in %d batches. %d PRs Remaining ...", i, count, float64(i)/float64(count)*100, int(math.Ceil(float64(i)/float64(limit))), count-int64(i))
+			default:
+			}
+		}
+	}
+	log.Info("Completed migrating %d Pull Request(s) in: %d batches", count, int(math.Ceil(float64(i)/float64(limit))))
+	return nil
+}
diff --git a/models/migrations/v1_12/v129.go b/models/migrations/v1_12/v129.go
new file mode 100644
index 0000000..cf22824
--- /dev/null
+++ b/models/migrations/v1_12/v129.go
@@ -0,0 +1,16 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func PurgeUnusedDependencies(x *xorm.Engine) error {
+	if _, err := x.Exec("DELETE FROM issue_dependency WHERE issue_id NOT IN (SELECT id FROM issue)"); err != nil {
+		return err
+	}
+	_, err := x.Exec("DELETE FROM issue_dependency WHERE dependency_id NOT IN (SELECT id FROM issue)")
+	return err
+}
diff --git a/models/migrations/v1_12/v130.go b/models/migrations/v1_12/v130.go
new file mode 100644
index 0000000..391810c
--- /dev/null
+++ b/models/migrations/v1_12/v130.go
@@ -0,0 +1,111 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func ExpandWebhooks(x *xorm.Engine) error {
+	type HookEvents struct {
+		Create               bool `json:"create"`
+		Delete               bool `json:"delete"`
+		Fork                 bool `json:"fork"`
+		Issues               bool `json:"issues"`
+		IssueAssign          bool `json:"issue_assign"`
+		IssueLabel           bool `json:"issue_label"`
+		IssueMilestone       bool `json:"issue_milestone"`
+		IssueComment         bool `json:"issue_comment"`
+		Push                 bool `json:"push"`
+		PullRequest          bool `json:"pull_request"`
+		PullRequestAssign    bool `json:"pull_request_assign"`
+		PullRequestLabel     bool `json:"pull_request_label"`
+		PullRequestMilestone bool `json:"pull_request_milestone"`
+		PullRequestComment   bool `json:"pull_request_comment"`
+		PullRequestReview    bool `json:"pull_request_review"`
+		PullRequestSync      bool `json:"pull_request_sync"`
+		Repository           bool `json:"repository"`
+		Release              bool `json:"release"`
+	}
+
+	type HookEvent struct {
+		PushOnly       bool   `json:"push_only"`
+		SendEverything bool   `json:"send_everything"`
+		ChooseEvents   bool   `json:"choose_events"`
+		BranchFilter   string `json:"branch_filter"`
+
+		HookEvents `json:"events"`
+	}
+
+	type Webhook struct {
+		ID     int64
+		Events string
+	}
+
+	var bytes []byte
+	var last int
+	batchSize := setting.Database.IterateBufferSize
+	sess := x.NewSession()
+	defer sess.Close()
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		results := make([]Webhook, 0, batchSize)
+		err := x.OrderBy("id").
+			Limit(batchSize, last).
+			Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += len(results)
+
+		for _, res := range results {
+			var events HookEvent
+			if err = json.Unmarshal([]byte(res.Events), &events); err != nil {
+				return err
+			}
+
+			if !events.ChooseEvents {
+				continue
+			}
+
+			if events.Issues {
+				events.IssueAssign = true
+				events.IssueLabel = true
+				events.IssueMilestone = true
+				events.IssueComment = true
+			}
+
+			if events.PullRequest {
+				events.PullRequestAssign = true
+				events.PullRequestLabel = true
+				events.PullRequestMilestone = true
+				events.PullRequestComment = true
+				events.PullRequestReview = true
+				events.PullRequestSync = true
+			}
+
+			if bytes, err = json.Marshal(&events); err != nil {
+				return err
+			}
+
+			_, err = sess.Exec("UPDATE webhook SET events = ? WHERE id = ?", string(bytes), res.ID)
+			if err != nil {
+				return err
+			}
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v131.go b/models/migrations/v1_12/v131.go
new file mode 100644
index 0000000..5184bc3
--- /dev/null
+++ b/models/migrations/v1_12/v131.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddSystemWebhookColumn(x *xorm.Engine) error {
+	type Webhook struct {
+		IsSystemWebhook bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(Webhook)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v132.go b/models/migrations/v1_12/v132.go
new file mode 100644
index 0000000..3b2b28f
--- /dev/null
+++ b/models/migrations/v1_12/v132.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddBranchProtectionProtectedFilesColumn(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		ProtectedFilePatterns string `xorm:"TEXT"`
+	}
+
+	if err := x.Sync(new(ProtectedBranch)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v133.go b/models/migrations/v1_12/v133.go
new file mode 100644
index 0000000..c9087fc
--- /dev/null
+++ b/models/migrations/v1_12/v133.go
@@ -0,0 +1,15 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import "xorm.io/xorm"
+
+func AddEmailHashTable(x *xorm.Engine) error {
+	// EmailHash represents a pre-generated hash map
+	type EmailHash struct {
+		Hash  string `xorm:"pk varchar(32)"`
+		Email string `xorm:"UNIQUE NOT NULL"`
+	}
+	return x.Sync(new(EmailHash))
+}
diff --git a/models/migrations/v1_12/v134.go b/models/migrations/v1_12/v134.go
new file mode 100644
index 0000000..23c2916
--- /dev/null
+++ b/models/migrations/v1_12/v134.go
@@ -0,0 +1,115 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+	"math"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func RefixMergeBase(x *xorm.Engine) error {
+	type Repository struct {
+		ID        int64 `xorm:"pk autoincr"`
+		OwnerID   int64 `xorm:"UNIQUE(s) index"`
+		OwnerName string
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name      string `xorm:"INDEX NOT NULL"`
+	}
+
+	type PullRequest struct {
+		ID         int64 `xorm:"pk autoincr"`
+		Index      int64
+		HeadRepoID int64 `xorm:"INDEX"`
+		BaseRepoID int64 `xorm:"INDEX"`
+		HeadBranch string
+		BaseBranch string
+		MergeBase  string `xorm:"VARCHAR(40)"`
+
+		HasMerged      bool   `xorm:"INDEX"`
+		MergedCommitID string `xorm:"VARCHAR(40)"`
+	}
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+	count, err := x.Where("has_merged = ?", true).Count(new(PullRequest))
+	if err != nil {
+		return err
+	}
+	log.Info("%d Merged Pull Request(s) to migrate ...", count)
+
+	i := 0
+	start := 0
+	for {
+		prs := make([]PullRequest, 0, 50)
+		if err := x.Limit(limit, start).Asc("id").Where("has_merged = ?", true).Find(&prs); err != nil {
+			return fmt.Errorf("Find: %w", err)
+		}
+		if len(prs) == 0 {
+			break
+		}
+
+		start += 50
+		for _, pr := range prs {
+			baseRepo := &Repository{ID: pr.BaseRepoID}
+			has, err := x.Table("repository").Get(baseRepo)
+			if err != nil {
+				return fmt.Errorf("Unable to get base repo %d %w", pr.BaseRepoID, err)
+			}
+			if !has {
+				log.Error("Missing base repo with id %d for PR ID %d", pr.BaseRepoID, pr.ID)
+				continue
+			}
+			userPath := filepath.Join(setting.RepoRootPath, strings.ToLower(baseRepo.OwnerName))
+			repoPath := filepath.Join(userPath, strings.ToLower(baseRepo.Name)+".git")
+
+			gitRefName := fmt.Sprintf("refs/pull/%d/head", pr.Index)
+
+			parentsString, _, err := git.NewCommand(git.DefaultContext, "rev-list", "--parents", "-n", "1").AddDynamicArguments(pr.MergedCommitID).RunStdString(&git.RunOpts{Dir: repoPath})
+			if err != nil {
+				log.Warn("Unable to get parents for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+				continue
+			}
+			parents := strings.Split(strings.TrimSpace(parentsString), " ")
+			if len(parents) < 3 {
+				continue
+			}
+
+			// we should recalculate
+			refs := append([]string{}, parents[1:]...)
+			refs = append(refs, gitRefName)
+			cmd := git.NewCommand(git.DefaultContext, "merge-base").AddDashesAndList(refs...)
+
+			pr.MergeBase, _, err = cmd.RunStdString(&git.RunOpts{Dir: repoPath})
+			if err != nil {
+				log.Error("Unable to get merge base for merged PR ID %d, Index %d in %s/%s. Error: %v", pr.ID, pr.Index, baseRepo.OwnerName, baseRepo.Name, err)
+				continue
+			}
+			pr.MergeBase = strings.TrimSpace(pr.MergeBase)
+			x.ID(pr.ID).Cols("merge_base").Update(pr)
+			i++
+			select {
+			case <-ticker.C:
+				log.Info("%d/%d (%2.0f%%) Pull Request(s) migrated in %d batches. %d PRs Remaining ...", i, count, float64(i)/float64(count)*100, int(math.Ceil(float64(i)/float64(limit))), count-int64(i))
+			default:
+			}
+		}
+	}
+
+	log.Info("Completed migrating %d Pull Request(s) in: %d batches", count, int(math.Ceil(float64(i)/float64(limit))))
+	return nil
+}
diff --git a/models/migrations/v1_12/v135.go b/models/migrations/v1_12/v135.go
new file mode 100644
index 0000000..8898011
--- /dev/null
+++ b/models/migrations/v1_12/v135.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddOrgIDLabelColumn(x *xorm.Engine) error {
+	type Label struct {
+		OrgID int64 `xorm:"INDEX"`
+	}
+
+	if err := x.Sync(new(Label)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v136.go b/models/migrations/v1_12/v136.go
new file mode 100644
index 0000000..d91ff92
--- /dev/null
+++ b/models/migrations/v1_12/v136.go
@@ -0,0 +1,125 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+	"math"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/graceful"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AddCommitDivergenceToPulls(x *xorm.Engine) error {
+	type Repository struct {
+		ID        int64 `xorm:"pk autoincr"`
+		OwnerID   int64 `xorm:"UNIQUE(s) index"`
+		OwnerName string
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name      string `xorm:"INDEX NOT NULL"`
+	}
+
+	type PullRequest struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IssueID int64 `xorm:"INDEX"`
+		Index   int64
+
+		CommitsAhead  int
+		CommitsBehind int
+
+		BaseRepoID int64 `xorm:"INDEX"`
+		BaseBranch string
+
+		HasMerged      bool   `xorm:"INDEX"`
+		MergedCommitID string `xorm:"VARCHAR(40)"`
+	}
+
+	if err := x.Sync(new(PullRequest)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	last := 0
+	migrated := 0
+
+	batchSize := setting.Database.IterateBufferSize
+	sess := x.NewSession()
+	defer sess.Close()
+
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+	count, err := sess.Where("has_merged = ?", false).Count(new(PullRequest))
+	if err != nil {
+		return err
+	}
+	log.Info("%d Unmerged Pull Request(s) to migrate ...", count)
+
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		results := make([]*PullRequest, 0, batchSize)
+		err := sess.Where("has_merged = ?", false).OrderBy("id").Limit(batchSize, last).Find(&results)
+		if err != nil {
+			return err
+		}
+		if len(results) == 0 {
+			break
+		}
+		last += batchSize
+
+		for _, pr := range results {
+			baseRepo := &Repository{ID: pr.BaseRepoID}
+			has, err := x.Table("repository").Get(baseRepo)
+			if err != nil {
+				return fmt.Errorf("Unable to get base repo %d %w", pr.BaseRepoID, err)
+			}
+			if !has {
+				log.Error("Missing base repo with id %d for PR ID %d", pr.BaseRepoID, pr.ID)
+				continue
+			}
+			userPath := filepath.Join(setting.RepoRootPath, strings.ToLower(baseRepo.OwnerName))
+			repoPath := filepath.Join(userPath, strings.ToLower(baseRepo.Name)+".git")
+
+			gitRefName := fmt.Sprintf("refs/pull/%d/head", pr.Index)
+
+			divergence, err := git.GetDivergingCommits(graceful.GetManager().HammerContext(), repoPath, pr.BaseBranch, gitRefName)
+			if err != nil {
+				log.Warn("Could not recalculate Divergence for pull: %d", pr.ID)
+				pr.CommitsAhead = 0
+				pr.CommitsBehind = 0
+			}
+			pr.CommitsAhead = divergence.Ahead
+			pr.CommitsBehind = divergence.Behind
+
+			if _, err = sess.ID(pr.ID).Cols("commits_ahead", "commits_behind").Update(pr); err != nil {
+				return fmt.Errorf("Update Cols: %w", err)
+			}
+			migrated++
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+		select {
+		case <-ticker.C:
+			log.Info(
+				"%d/%d (%2.0f%%) Pull Request(s) migrated in %d batches. %d PRs Remaining ...",
+				migrated,
+				count,
+				float64(migrated)/float64(count)*100,
+				int(math.Ceil(float64(migrated)/float64(batchSize))),
+				count-int64(migrated))
+		default:
+		}
+	}
+	log.Info("Completed migrating %d Pull Request(s) in: %d batches", count, int(math.Ceil(float64(migrated)/float64(batchSize))))
+	return nil
+}
diff --git a/models/migrations/v1_12/v137.go b/models/migrations/v1_12/v137.go
new file mode 100644
index 0000000..0d86b72
--- /dev/null
+++ b/models/migrations/v1_12/v137.go
@@ -0,0 +1,15 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddBlockOnOutdatedBranch(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		BlockOnOutdatedBranch bool `xorm:"NOT NULL DEFAULT false"`
+	}
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_12/v138.go b/models/migrations/v1_12/v138.go
new file mode 100644
index 0000000..8c8d353
--- /dev/null
+++ b/models/migrations/v1_12/v138.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddResolveDoerIDCommentColumn(x *xorm.Engine) error {
+	type Comment struct {
+		ResolveDoerID int64
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_12/v139.go b/models/migrations/v1_12/v139.go
new file mode 100644
index 0000000..5b65769
--- /dev/null
+++ b/models/migrations/v1_12/v139.go
@@ -0,0 +1,23 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_12 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func PrependRefsHeadsToIssueRefs(x *xorm.Engine) error {
+	var query string
+
+	if setting.Database.Type.IsMySQL() {
+		query = "UPDATE `issue` SET `ref` = CONCAT('refs/heads/', `ref`) WHERE `ref` IS NOT NULL AND `ref` <> '' AND `ref` NOT LIKE 'refs/%';"
+	} else {
+		query = "UPDATE `issue` SET `ref` = 'refs/heads/' || `ref` WHERE `ref` IS NOT NULL AND `ref` <> '' AND `ref` NOT LIKE 'refs/%'"
+	}
+
+	_, err := x.Exec(query)
+	return err
+}
diff --git a/models/migrations/v1_13/v140.go b/models/migrations/v1_13/v140.go
new file mode 100644
index 0000000..2d33370
--- /dev/null
+++ b/models/migrations/v1_13/v140.go
@@ -0,0 +1,56 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func FixLanguageStatsToSaveSize(x *xorm.Engine) error {
+	// LanguageStat see models/repo_language_stats.go
+	type LanguageStat struct {
+		Size int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	// RepoIndexerType specifies the repository indexer type
+	type RepoIndexerType int
+
+	const (
+		// RepoIndexerTypeCode code indexer - 0
+		RepoIndexerTypeCode RepoIndexerType = iota //nolint:unused
+		// RepoIndexerTypeStats repository stats indexer - 1
+		RepoIndexerTypeStats
+	)
+
+	// RepoIndexerStatus see models/repo_indexer.go
+	type RepoIndexerStatus struct {
+		IndexerType RepoIndexerType `xorm:"INDEX(s) NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(LanguageStat)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	x.Delete(&RepoIndexerStatus{IndexerType: RepoIndexerTypeStats})
+
+	// Delete language stat statuses
+	truncExpr := "TRUNCATE TABLE"
+	if setting.Database.Type.IsSQLite3() {
+		truncExpr = "DELETE FROM"
+	}
+
+	// Delete language stats
+	if _, err := x.Exec(fmt.Sprintf("%s language_stat", truncExpr)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	return base.DropTableColumns(sess, "language_stat", "percentage")
+}
diff --git a/models/migrations/v1_13/v141.go b/models/migrations/v1_13/v141.go
new file mode 100644
index 0000000..ae211e0
--- /dev/null
+++ b/models/migrations/v1_13/v141.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddKeepActivityPrivateUserColumn(x *xorm.Engine) error {
+	type User struct {
+		KeepActivityPrivate bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(User)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_13/v142.go b/models/migrations/v1_13/v142.go
new file mode 100644
index 0000000..7c7c01a
--- /dev/null
+++ b/models/migrations/v1_13/v142.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func SetIsArchivedToFalse(x *xorm.Engine) error {
+	type Repository struct {
+		IsArchived bool `xorm:"INDEX"`
+	}
+	count, err := x.Where(builder.IsNull{"is_archived"}).Cols("is_archived").Update(&Repository{
+		IsArchived: false,
+	})
+	if err == nil {
+		log.Debug("Updated %d repositories with is_archived IS NULL", count)
+	}
+	return err
+}
diff --git a/models/migrations/v1_13/v143.go b/models/migrations/v1_13/v143.go
new file mode 100644
index 0000000..885768d
--- /dev/null
+++ b/models/migrations/v1_13/v143.go
@@ -0,0 +1,51 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+func RecalculateStars(x *xorm.Engine) (err error) {
+	// because of issue https://github.com/go-gitea/gitea/issues/11949,
+	// recalculate Stars number for all users to fully fix it.
+
+	type User struct {
+		ID int64 `xorm:"pk autoincr"`
+	}
+
+	const batchSize = 100
+	sess := x.NewSession()
+	defer sess.Close()
+
+	for start := 0; ; start += batchSize {
+		users := make([]User, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Where("type = ?", 0).Cols("id").Find(&users); err != nil {
+			return err
+		}
+		if len(users) == 0 {
+			break
+		}
+
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		for _, user := range users {
+			if _, err := sess.Exec("UPDATE `user` SET num_stars=(SELECT COUNT(*) FROM `star` WHERE uid=?) WHERE id=?", user.ID, user.ID); err != nil {
+				return err
+			}
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+
+	log.Debug("recalculate Stars number for all user finished")
+
+	return err
+}
diff --git a/models/migrations/v1_13/v144.go b/models/migrations/v1_13/v144.go
new file mode 100644
index 0000000..f5a0bc5
--- /dev/null
+++ b/models/migrations/v1_13/v144.go
@@ -0,0 +1,25 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func UpdateMatrixWebhookHTTPMethod(x *xorm.Engine) error {
+	matrixHookTaskType := 9 // value comes from the models package
+	type Webhook struct {
+		HTTPMethod string
+	}
+
+	cond := builder.Eq{"hook_task_type": matrixHookTaskType}.And(builder.Neq{"http_method": "PUT"})
+	count, err := x.Where(cond).Cols("http_method").Update(&Webhook{HTTPMethod: "PUT"})
+	if err == nil {
+		log.Debug("Updated %d Matrix webhooks with http_method 'PUT'", count)
+	}
+	return err
+}
diff --git a/models/migrations/v1_13/v145.go b/models/migrations/v1_13/v145.go
new file mode 100644
index 0000000..5b38f1c
--- /dev/null
+++ b/models/migrations/v1_13/v145.go
@@ -0,0 +1,55 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func IncreaseLanguageField(x *xorm.Engine) error {
+	type LanguageStat struct {
+		RepoID   int64  `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Language string `xorm:"VARCHAR(50) UNIQUE(s) INDEX NOT NULL"`
+	}
+
+	if err := x.Sync(new(LanguageStat)); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsSQLite3() {
+		// SQLite maps VARCHAR to TEXT without size so we're done
+		return nil
+	}
+
+	// need to get the correct type for the new column
+	inferredTable, err := x.TableInfo(new(LanguageStat))
+	if err != nil {
+		return err
+	}
+	column := inferredTable.GetColumn("language")
+	sqlType := x.Dialect().SQLType(column)
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	switch {
+	case setting.Database.Type.IsMySQL():
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE language_stat MODIFY COLUMN language %s", sqlType)); err != nil {
+			return err
+		}
+	case setting.Database.Type.IsPostgreSQL():
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE language_stat ALTER COLUMN language TYPE %s", sqlType)); err != nil {
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_13/v146.go b/models/migrations/v1_13/v146.go
new file mode 100644
index 0000000..7d9a878
--- /dev/null
+++ b/models/migrations/v1_13/v146.go
@@ -0,0 +1,83 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddProjectsInfo(x *xorm.Engine) error {
+	// Create new tables
+	type (
+		ProjectType      uint8
+		ProjectBoardType uint8
+	)
+
+	type Project struct {
+		ID          int64  `xorm:"pk autoincr"`
+		Title       string `xorm:"INDEX NOT NULL"`
+		Description string `xorm:"TEXT"`
+		RepoID      int64  `xorm:"INDEX"`
+		CreatorID   int64  `xorm:"NOT NULL"`
+		IsClosed    bool   `xorm:"INDEX"`
+
+		BoardType ProjectBoardType
+		Type      ProjectType
+
+		ClosedDateUnix timeutil.TimeStamp
+		CreatedUnix    timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	if err := x.Sync(new(Project)); err != nil {
+		return err
+	}
+
+	type Comment struct {
+		OldProjectID int64
+		ProjectID    int64
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return err
+	}
+
+	type Repository struct {
+		ID                int64
+		NumProjects       int `xorm:"NOT NULL DEFAULT 0"`
+		NumClosedProjects int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+
+	// ProjectIssue saves relation from issue to a project
+	type ProjectIssue struct {
+		ID             int64 `xorm:"pk autoincr"`
+		IssueID        int64 `xorm:"INDEX"`
+		ProjectID      int64 `xorm:"INDEX"`
+		ProjectBoardID int64 `xorm:"INDEX"`
+	}
+
+	if err := x.Sync(new(ProjectIssue)); err != nil {
+		return err
+	}
+
+	type ProjectBoard struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Title   string
+		Default bool `xorm:"NOT NULL DEFAULT false"`
+
+		ProjectID int64 `xorm:"INDEX NOT NULL"`
+		CreatorID int64 `xorm:"NOT NULL"`
+
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	return x.Sync(new(ProjectBoard))
+}
diff --git a/models/migrations/v1_13/v147.go b/models/migrations/v1_13/v147.go
new file mode 100644
index 0000000..510ef39
--- /dev/null
+++ b/models/migrations/v1_13/v147.go
@@ -0,0 +1,153 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateReviewsForCodeComments(x *xorm.Engine) error {
+	// Review
+	type Review struct {
+		ID               int64 `xorm:"pk autoincr"`
+		Type             int
+		ReviewerID       int64 `xorm:"index"`
+		OriginalAuthor   string
+		OriginalAuthorID int64
+		IssueID          int64  `xorm:"index"`
+		Content          string `xorm:"TEXT"`
+		// Official is a review made by an assigned approver (counts towards approval)
+		Official bool   `xorm:"NOT NULL DEFAULT false"`
+		CommitID string `xorm:"VARCHAR(40)"`
+		Stale    bool   `xorm:"NOT NULL DEFAULT false"`
+
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	const ReviewTypeComment = 2
+
+	// Comment represents a comment in commit and issue page.
+	type Comment struct {
+		ID               int64 `xorm:"pk autoincr"`
+		Type             int   `xorm:"INDEX"`
+		PosterID         int64 `xorm:"INDEX"`
+		OriginalAuthor   string
+		OriginalAuthorID int64
+		IssueID          int64 `xorm:"INDEX"`
+		LabelID          int64
+		OldProjectID     int64
+		ProjectID        int64
+		OldMilestoneID   int64
+		MilestoneID      int64
+		AssigneeID       int64
+		RemovedAssignee  bool
+		ResolveDoerID    int64
+		OldTitle         string
+		NewTitle         string
+		OldRef           string
+		NewRef           string
+		DependentIssueID int64
+
+		CommitID int64
+		Line     int64 // - previous line / + proposed line
+		TreePath string
+		Content  string `xorm:"TEXT"`
+
+		// Path represents the 4 lines of code cemented by this comment
+		PatchQuoted string `xorm:"TEXT patch"`
+
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+
+		// Reference issue in commit message
+		CommitSHA string `xorm:"VARCHAR(40)"`
+
+		ReviewID    int64 `xorm:"index"`
+		Invalidated bool
+
+		// Reference an issue or pull from another comment, issue or PR
+		// All information is about the origin of the reference
+		RefRepoID    int64 `xorm:"index"` // Repo where the referencing
+		RefIssueID   int64 `xorm:"index"`
+		RefCommentID int64 `xorm:"index"`    // 0 if origin is Issue title or content (or PR's)
+		RefAction    int   `xorm:"SMALLINT"` // What happens if RefIssueID resolves
+		RefIsPull    bool
+	}
+
+	if err := x.Sync(new(Review), new(Comment)); err != nil {
+		return err
+	}
+
+	updateComment := func(comments []*Comment) error {
+		sess := x.NewSession()
+		defer sess.Close()
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		for _, comment := range comments {
+			review := &Review{
+				Type:             ReviewTypeComment,
+				ReviewerID:       comment.PosterID,
+				IssueID:          comment.IssueID,
+				Official:         false,
+				CommitID:         comment.CommitSHA,
+				Stale:            comment.Invalidated,
+				OriginalAuthor:   comment.OriginalAuthor,
+				OriginalAuthorID: comment.OriginalAuthorID,
+				CreatedUnix:      comment.CreatedUnix,
+				UpdatedUnix:      comment.CreatedUnix,
+			}
+			if _, err := sess.NoAutoTime().Insert(review); err != nil {
+				return err
+			}
+
+			reviewComment := &Comment{
+				Type:             22,
+				PosterID:         comment.PosterID,
+				Content:          "",
+				IssueID:          comment.IssueID,
+				ReviewID:         review.ID,
+				OriginalAuthor:   comment.OriginalAuthor,
+				OriginalAuthorID: comment.OriginalAuthorID,
+				CreatedUnix:      comment.CreatedUnix,
+				UpdatedUnix:      comment.CreatedUnix,
+			}
+			if _, err := sess.NoAutoTime().Insert(reviewComment); err != nil {
+				return err
+			}
+
+			comment.ReviewID = review.ID
+			if _, err := sess.ID(comment.ID).Cols("review_id").NoAutoTime().Update(comment); err != nil {
+				return err
+			}
+		}
+
+		return sess.Commit()
+	}
+
+	start := 0
+	batchSize := 100
+	for {
+		comments := make([]*Comment, 0, batchSize)
+		if err := x.Where("review_id = 0 and type = 21").Limit(batchSize, start).Find(&comments); err != nil {
+			return err
+		}
+
+		if err := updateComment(comments); err != nil {
+			return err
+		}
+
+		start += len(comments)
+
+		if len(comments) < batchSize {
+			break
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_13/v148.go b/models/migrations/v1_13/v148.go
new file mode 100644
index 0000000..7bb8ab7
--- /dev/null
+++ b/models/migrations/v1_13/v148.go
@@ -0,0 +1,13 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func PurgeInvalidDependenciesComments(x *xorm.Engine) error {
+	_, err := x.Exec("DELETE FROM comment WHERE dependent_issue_id != 0 AND dependent_issue_id NOT IN (SELECT id FROM issue)")
+	return err
+}
diff --git a/models/migrations/v1_13/v149.go b/models/migrations/v1_13/v149.go
new file mode 100644
index 0000000..2a1db04
--- /dev/null
+++ b/models/migrations/v1_13/v149.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddCreatedAndUpdatedToMilestones(x *xorm.Engine) error {
+	type Milestone struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	if err := x.Sync(new(Milestone)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_13/v150.go b/models/migrations/v1_13/v150.go
new file mode 100644
index 0000000..d5ba489
--- /dev/null
+++ b/models/migrations/v1_13/v150.go
@@ -0,0 +1,39 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddPrimaryKeyToRepoTopic(x *xorm.Engine) error {
+	// Topic represents a topic of repositories
+	type Topic struct {
+		ID          int64  `xorm:"pk autoincr"`
+		Name        string `xorm:"UNIQUE VARCHAR(25)"`
+		RepoCount   int
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	// RepoTopic represents associated repositories and topics
+	type RepoTopic struct {
+		RepoID  int64 `xorm:"pk"`
+		TopicID int64 `xorm:"pk"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	base.RecreateTable(sess, &Topic{})
+	base.RecreateTable(sess, &RepoTopic{})
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_13/v151.go b/models/migrations/v1_13/v151.go
new file mode 100644
index 0000000..ea4a8ea
--- /dev/null
+++ b/models/migrations/v1_13/v151.go
@@ -0,0 +1,166 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func SetDefaultPasswordToArgon2(x *xorm.Engine) error {
+	switch {
+	case setting.Database.Type.IsMySQL():
+		_, err := x.Exec("ALTER TABLE `user` ALTER passwd_hash_algo SET DEFAULT 'argon2';")
+		return err
+	case setting.Database.Type.IsPostgreSQL():
+		_, err := x.Exec("ALTER TABLE `user` ALTER COLUMN passwd_hash_algo SET DEFAULT 'argon2';")
+		return err
+	case setting.Database.Type.IsSQLite3():
+		// drop through
+	default:
+		log.Fatal("Unrecognized DB")
+	}
+
+	tables, err := x.DBMetas()
+	if err != nil {
+		return err
+	}
+
+	// Now for SQLite we have to recreate the table
+	var table *schemas.Table
+	tableName := "user"
+
+	for _, table = range tables {
+		if table.Name == tableName {
+			break
+		}
+	}
+	if table == nil || table.Name != tableName {
+		type User struct {
+			PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
+		}
+		return x.Sync(new(User))
+	}
+	column := table.GetColumn("passwd_hash_algo")
+	if column == nil {
+		type User struct {
+			PasswdHashAlgo string `xorm:"NOT NULL DEFAULT 'argon2'"`
+		}
+		return x.Sync(new(User))
+	}
+
+	tempTableName := "tmp_recreate__user"
+	column.Default = "'argon2'"
+
+	createTableSQL, _, err := x.Dialect().CreateTableSQL(context.Background(), x.DB(), table, tempTableName)
+	if err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if _, err := sess.Exec(createTableSQL); err != nil {
+		log.Error("Unable to create table %s. Error: %v\n", tempTableName, err, createTableSQL)
+		return err
+	}
+	for _, index := range table.Indexes {
+		if _, err := sess.Exec(x.Dialect().CreateIndexSQL(tempTableName, index)); err != nil {
+			log.Error("Unable to create indexes on temporary table %s. Error: %v", tempTableName, err)
+			return err
+		}
+	}
+
+	newTableColumns := table.Columns()
+	if len(newTableColumns) == 0 {
+		return fmt.Errorf("no columns in new table")
+	}
+	hasID := false
+	for _, column := range newTableColumns {
+		hasID = hasID || (column.IsPrimaryKey && column.IsAutoIncrement)
+	}
+
+	sqlStringBuilder := &strings.Builder{}
+	_, _ = sqlStringBuilder.WriteString("INSERT INTO `")
+	_, _ = sqlStringBuilder.WriteString(tempTableName)
+	_, _ = sqlStringBuilder.WriteString("` (`")
+	_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+	_, _ = sqlStringBuilder.WriteString("`")
+	for _, column := range newTableColumns[1:] {
+		_, _ = sqlStringBuilder.WriteString(", `")
+		_, _ = sqlStringBuilder.WriteString(column.Name)
+		_, _ = sqlStringBuilder.WriteString("`")
+	}
+	_, _ = sqlStringBuilder.WriteString(")")
+	_, _ = sqlStringBuilder.WriteString(" SELECT ")
+	if newTableColumns[0].Default != "" {
+		_, _ = sqlStringBuilder.WriteString("COALESCE(`")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+		_, _ = sqlStringBuilder.WriteString("`, ")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Default)
+		_, _ = sqlStringBuilder.WriteString(")")
+	} else {
+		_, _ = sqlStringBuilder.WriteString("`")
+		_, _ = sqlStringBuilder.WriteString(newTableColumns[0].Name)
+		_, _ = sqlStringBuilder.WriteString("`")
+	}
+
+	for _, column := range newTableColumns[1:] {
+		if column.Default != "" {
+			_, _ = sqlStringBuilder.WriteString(", COALESCE(`")
+			_, _ = sqlStringBuilder.WriteString(column.Name)
+			_, _ = sqlStringBuilder.WriteString("`, ")
+			_, _ = sqlStringBuilder.WriteString(column.Default)
+			_, _ = sqlStringBuilder.WriteString(")")
+		} else {
+			_, _ = sqlStringBuilder.WriteString(", `")
+			_, _ = sqlStringBuilder.WriteString(column.Name)
+			_, _ = sqlStringBuilder.WriteString("`")
+		}
+	}
+	_, _ = sqlStringBuilder.WriteString(" FROM `")
+	_, _ = sqlStringBuilder.WriteString(tableName)
+	_, _ = sqlStringBuilder.WriteString("`")
+
+	if _, err := sess.Exec(sqlStringBuilder.String()); err != nil {
+		log.Error("Unable to set copy data in to temp table %s. Error: %v", tempTableName, err)
+		return err
+	}
+
+	// SQLite will drop all the constraints on the old table
+	if _, err := sess.Exec(fmt.Sprintf("DROP TABLE `%s`", tableName)); err != nil {
+		log.Error("Unable to drop old table %s. Error: %v", tableName, err)
+		return err
+	}
+
+	for _, index := range table.Indexes {
+		if _, err := sess.Exec(x.Dialect().DropIndexSQL(tempTableName, index)); err != nil {
+			log.Error("Unable to drop indexes on temporary table %s. Error: %v", tempTableName, err)
+			return err
+		}
+	}
+
+	if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `%s` RENAME TO `%s`", tempTableName, tableName)); err != nil {
+		log.Error("Unable to rename %s to %s. Error: %v", tempTableName, tableName, err)
+		return err
+	}
+
+	for _, index := range table.Indexes {
+		if _, err := sess.Exec(x.Dialect().CreateIndexSQL(tableName, index)); err != nil {
+			log.Error("Unable to recreate indexes on table %s. Error: %v", tableName, err)
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_13/v152.go b/models/migrations/v1_13/v152.go
new file mode 100644
index 0000000..502c82a
--- /dev/null
+++ b/models/migrations/v1_13/v152.go
@@ -0,0 +1,13 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import "xorm.io/xorm"
+
+func AddTrustModelToRepository(x *xorm.Engine) error {
+	type Repository struct {
+		TrustModel int
+	}
+	return x.Sync(new(Repository))
+}
diff --git a/models/migrations/v1_13/v153.go b/models/migrations/v1_13/v153.go
new file mode 100644
index 0000000..0b2dd3e
--- /dev/null
+++ b/models/migrations/v1_13/v153.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddTeamReviewRequestSupport(x *xorm.Engine) error {
+	type Review struct {
+		ReviewerTeamID int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	type Comment struct {
+		AssigneeTeamID int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(Review)); err != nil {
+		return err
+	}
+
+	return x.Sync(new(Comment))
+}
diff --git a/models/migrations/v1_13/v154.go b/models/migrations/v1_13/v154.go
new file mode 100644
index 0000000..60cc567
--- /dev/null
+++ b/models/migrations/v1_13/v154.go
@@ -0,0 +1,55 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_13 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddTimeStamps(x *xorm.Engine) error {
+	// this will add timestamps where it is useful to have
+
+	// Star represents a starred repo by an user.
+	type Star struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	}
+	if err := x.Sync(new(Star)); err != nil {
+		return err
+	}
+
+	// Label represents a label of repository for issues.
+	type Label struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	if err := x.Sync(new(Label)); err != nil {
+		return err
+	}
+
+	// Follow represents relations of user and their followers.
+	type Follow struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	}
+	if err := x.Sync(new(Follow)); err != nil {
+		return err
+	}
+
+	// Watch is connection request for receiving repository notification.
+	type Watch struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	if err := x.Sync(new(Watch)); err != nil {
+		return err
+	}
+
+	// Collaboration represent the relation between an individual and a repository.
+	type Collaboration struct {
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	return x.Sync(new(Collaboration))
+}
diff --git a/models/migrations/v1_14/main_test.go b/models/migrations/v1_14/main_test.go
new file mode 100644
index 0000000..cf7fcb5
--- /dev/null
+++ b/models/migrations/v1_14/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_14/v155.go b/models/migrations/v1_14/v155.go
new file mode 100644
index 0000000..e814f59
--- /dev/null
+++ b/models/migrations/v1_14/v155.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddChangedProtectedFilesPullRequestColumn(x *xorm.Engine) error {
+	type PullRequest struct {
+		ChangedProtectedFiles []string `xorm:"TEXT JSON"`
+	}
+
+	if err := x.Sync(new(PullRequest)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v156.go b/models/migrations/v1_14/v156.go
new file mode 100644
index 0000000..2cf4954
--- /dev/null
+++ b/models/migrations/v1_14/v156.go
@@ -0,0 +1,177 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+// Copy paste from models/repo.go because we cannot import models package
+func repoPath(userName, repoName string) string {
+	return filepath.Join(userPath(userName), strings.ToLower(repoName)+".git")
+}
+
+func userPath(userName string) string {
+	return filepath.Join(setting.RepoRootPath, strings.ToLower(userName))
+}
+
+func FixPublisherIDforTagReleases(x *xorm.Engine) error {
+	type Release struct {
+		ID          int64
+		RepoID      int64
+		Sha1        string
+		TagName     string
+		PublisherID int64
+	}
+
+	type Repository struct {
+		ID        int64
+		OwnerID   int64
+		OwnerName string
+		Name      string
+	}
+
+	type User struct {
+		ID    int64
+		Name  string
+		Email string
+	}
+
+	const batchSize = 100
+	sess := x.NewSession()
+	defer sess.Close()
+
+	var (
+		repo    *Repository
+		gitRepo *git.Repository
+		user    *User
+	)
+	defer func() {
+		if gitRepo != nil {
+			gitRepo.Close()
+		}
+	}()
+	for start := 0; ; start += batchSize {
+		releases := make([]*Release, 0, batchSize)
+
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		if err := sess.Limit(batchSize, start).
+			Where("publisher_id = 0 OR publisher_id is null").
+			Asc("repo_id", "id").Where("is_tag=?", true).
+			Find(&releases); err != nil {
+			return err
+		}
+
+		if len(releases) == 0 {
+			break
+		}
+
+		for _, release := range releases {
+			if repo == nil || repo.ID != release.RepoID {
+				if gitRepo != nil {
+					gitRepo.Close()
+					gitRepo = nil
+				}
+				repo = new(Repository)
+				has, err := sess.ID(release.RepoID).Get(repo)
+				if err != nil {
+					log.Error("Error whilst loading repository[%d] for release[%d] with tag name %s. Error: %v", release.RepoID, release.ID, release.TagName, err)
+					return err
+				} else if !has {
+					log.Warn("Release[%d] is orphaned and refers to non-existing repository %d", release.ID, release.RepoID)
+					log.Warn("This release should be deleted")
+					continue
+				}
+
+				if repo.OwnerName == "" {
+					// v120.go migration may not have been run correctly - we'll just replicate it here
+					// because this appears to be a common-ish problem.
+					if _, err := sess.Exec("UPDATE repository SET owner_name = (SELECT name FROM `user` WHERE `user`.id = repository.owner_id)"); err != nil {
+						log.Error("Error whilst updating repository[%d] owner name", repo.ID)
+						return err
+					}
+
+					if _, err := sess.ID(release.RepoID).Get(repo); err != nil {
+						log.Error("Error whilst loading repository[%d] for release[%d] with tag name %s. Error: %v", release.RepoID, release.ID, release.TagName, err)
+						return err
+					}
+				}
+				gitRepo, err = git.OpenRepository(git.DefaultContext, repoPath(repo.OwnerName, repo.Name))
+				if err != nil {
+					log.Error("Error whilst opening git repo for [%d]%s/%s. Error: %v", repo.ID, repo.OwnerName, repo.Name, err)
+					return err
+				}
+			}
+
+			commit, err := gitRepo.GetTagCommit(release.TagName)
+			if err != nil {
+				if git.IsErrNotExist(err) {
+					log.Warn("Unable to find commit %s for Tag: %s in [%d]%s/%s. Cannot update publisher ID.", err.(git.ErrNotExist).ID, release.TagName, repo.ID, repo.OwnerName, repo.Name)
+					continue
+				}
+				log.Error("Error whilst getting commit for Tag: %s in [%d]%s/%s. Error: %v", release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+				return fmt.Errorf("GetTagCommit: %w", err)
+			}
+
+			if commit.Author.Email == "" {
+				log.Warn("Tag: %s in Repo[%d]%s/%s does not have a tagger.", release.TagName, repo.ID, repo.OwnerName, repo.Name)
+				commit, err = gitRepo.GetCommit(commit.ID.String())
+				if err != nil {
+					if git.IsErrNotExist(err) {
+						log.Warn("Unable to find commit %s for Tag: %s in [%d]%s/%s. Cannot update publisher ID.", err.(git.ErrNotExist).ID, release.TagName, repo.ID, repo.OwnerName, repo.Name)
+						continue
+					}
+					log.Error("Error whilst getting commit for Tag: %s in [%d]%s/%s. Error: %v", release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+					return fmt.Errorf("GetCommit: %w", err)
+				}
+			}
+
+			if commit.Author.Email == "" {
+				log.Warn("Tag: %s in Repo[%d]%s/%s does not have a Tagger and its underlying commit does not have an Author either!", release.TagName, repo.ID, repo.OwnerName, repo.Name)
+				continue
+			}
+
+			if user == nil || !strings.EqualFold(user.Email, commit.Author.Email) {
+				user = new(User)
+				_, err = sess.Where("email=?", commit.Author.Email).Get(user)
+				if err != nil {
+					log.Error("Error whilst getting commit author by email: %s for Tag: %s in [%d]%s/%s. Error: %v", commit.Author.Email, release.TagName, repo.ID, repo.OwnerName, repo.Name, err)
+					return err
+				}
+
+				user.Email = commit.Author.Email
+			}
+
+			if user.ID <= 0 {
+				continue
+			}
+
+			release.PublisherID = user.ID
+			if _, err := sess.ID(release.ID).Cols("publisher_id").Update(release); err != nil {
+				log.Error("Error whilst updating publisher[%d] for release[%d] with tag name %s. Error: %v", release.PublisherID, release.ID, release.TagName, err)
+				return err
+			}
+		}
+		if gitRepo != nil {
+			gitRepo.Close()
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_14/v157.go b/models/migrations/v1_14/v157.go
new file mode 100644
index 0000000..7187278
--- /dev/null
+++ b/models/migrations/v1_14/v157.go
@@ -0,0 +1,66 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func FixRepoTopics(x *xorm.Engine) error {
+	type Topic struct { //nolint:unused
+		ID        int64  `xorm:"pk autoincr"`
+		Name      string `xorm:"UNIQUE VARCHAR(25)"`
+		RepoCount int
+	}
+
+	type RepoTopic struct { //nolint:unused
+		RepoID  int64 `xorm:"pk"`
+		TopicID int64 `xorm:"pk"`
+	}
+
+	type Repository struct {
+		ID     int64    `xorm:"pk autoincr"`
+		Topics []string `xorm:"TEXT JSON"`
+	}
+
+	const batchSize = 100
+	sess := x.NewSession()
+	defer sess.Close()
+	repos := make([]*Repository, 0, batchSize)
+	topics := make([]string, 0, batchSize)
+	for start := 0; ; start += batchSize {
+		repos = repos[:0]
+
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		if err := sess.Limit(batchSize, start).Find(&repos); err != nil {
+			return err
+		}
+
+		if len(repos) == 0 {
+			break
+		}
+
+		for _, repo := range repos {
+			topics = topics[:0]
+			if err := sess.Select("name").Table("topic").
+				Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id").
+				Where("repo_topic.repo_id = ?", repo.ID).Desc("topic.repo_count").Find(&topics); err != nil {
+				return err
+			}
+			repo.Topics = topics
+			if _, err := sess.ID(repo.ID).Cols("topics").Update(repo); err != nil {
+				return err
+			}
+		}
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_14/v158.go b/models/migrations/v1_14/v158.go
new file mode 100644
index 0000000..2d688b1
--- /dev/null
+++ b/models/migrations/v1_14/v158.go
@@ -0,0 +1,101 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+	"strconv"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func UpdateCodeCommentReplies(x *xorm.Engine) error {
+	type Comment struct {
+		ID          int64  `xorm:"pk autoincr"`
+		CommitSHA   string `xorm:"VARCHAR(40)"`
+		Patch       string `xorm:"TEXT patch"`
+		Invalidated bool
+
+		// Not extracted but used in the below query
+		Type     int   `xorm:"INDEX"`
+		Line     int64 // - previous line / + proposed line
+		TreePath string
+		ReviewID int64 `xorm:"index"`
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return err
+	}
+
+	sqlSelect := `SELECT comment.id as id, first.commit_sha as commit_sha, first.patch as patch, first.invalidated as invalidated`
+	sqlTail := ` FROM comment INNER JOIN (
+		SELECT C.id, C.review_id, C.line, C.tree_path, C.patch, C.commit_sha, C.invalidated
+		FROM comment AS C
+		WHERE C.type = 21
+			AND C.created_unix =
+				(SELECT MIN(comment.created_unix)
+					FROM comment
+					WHERE comment.review_id = C.review_id
+					AND comment.type = 21
+					AND comment.line = C.line
+					AND comment.tree_path = C.tree_path)
+		) AS first
+		ON comment.review_id = first.review_id
+			AND comment.tree_path = first.tree_path AND comment.line = first.line
+	WHERE comment.type = 21
+		AND comment.id != first.id
+		AND comment.commit_sha != first.commit_sha`
+
+	var (
+		sqlCmd    string
+		start     = 0
+		batchSize = 100
+		sess      = x.NewSession()
+	)
+	defer sess.Close()
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		comments := make([]*Comment, 0, batchSize)
+
+		switch {
+		case setting.Database.Type.IsMySQL():
+			sqlCmd = sqlSelect + sqlTail + " LIMIT " + strconv.Itoa(batchSize) + ", " + strconv.Itoa(start)
+		case setting.Database.Type.IsPostgreSQL():
+			fallthrough
+		case setting.Database.Type.IsSQLite3():
+			sqlCmd = sqlSelect + sqlTail + " LIMIT " + strconv.Itoa(batchSize) + " OFFSET " + strconv.Itoa(start)
+		default:
+			return fmt.Errorf("Unsupported database type")
+		}
+
+		if err := sess.SQL(sqlCmd).Find(&comments); err != nil {
+			log.Error("failed to select: %v", err)
+			return err
+		}
+
+		for _, comment := range comments {
+			if _, err := sess.Table("comment").ID(comment.ID).Cols("commit_sha", "patch", "invalidated").Update(comment); err != nil {
+				log.Error("failed to update comment[%d]: %v %v", comment.ID, comment, err)
+				return err
+			}
+		}
+
+		start += len(comments)
+
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+		if len(comments) < batchSize {
+			break
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_14/v159.go b/models/migrations/v1_14/v159.go
new file mode 100644
index 0000000..149ae0f
--- /dev/null
+++ b/models/migrations/v1_14/v159.go
@@ -0,0 +1,38 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func UpdateReactionConstraint(x *xorm.Engine) error {
+	// Reaction represents a reactions on issues and comments.
+	type Reaction struct {
+		ID               int64              `xorm:"pk autoincr"`
+		Type             string             `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		IssueID          int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		CommentID        int64              `xorm:"INDEX UNIQUE(s)"`
+		UserID           int64              `xorm:"INDEX UNIQUE(s) NOT NULL"`
+		OriginalAuthorID int64              `xorm:"INDEX UNIQUE(s) NOT NULL DEFAULT(0)"`
+		OriginalAuthor   string             `xorm:"INDEX UNIQUE(s)"`
+		CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := base.RecreateTable(sess, &Reaction{}); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v160.go b/models/migrations/v1_14/v160.go
new file mode 100644
index 0000000..4dea91b
--- /dev/null
+++ b/models/migrations/v1_14/v160.go
@@ -0,0 +1,16 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddBlockOnOfficialReviewRequests(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		BlockOnOfficialReviewRequests bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_14/v161.go b/models/migrations/v1_14/v161.go
new file mode 100644
index 0000000..ac7e821
--- /dev/null
+++ b/models/migrations/v1_14/v161.go
@@ -0,0 +1,73 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func ConvertTaskTypeToString(x *xorm.Engine) error {
+	const (
+		GOGS int = iota + 1
+		SLACK
+		GITEA
+		DISCORD
+		DINGTALK
+		TELEGRAM
+		MSTEAMS
+		FEISHU
+		MATRIX
+		WECHATWORK
+	)
+
+	hookTaskTypes := map[int]string{
+		GITEA:      "gitea",
+		GOGS:       "gogs",
+		SLACK:      "slack",
+		DISCORD:    "discord",
+		DINGTALK:   "dingtalk",
+		TELEGRAM:   "telegram",
+		MSTEAMS:    "msteams",
+		FEISHU:     "feishu",
+		MATRIX:     "matrix",
+		WECHATWORK: "wechatwork",
+	}
+
+	type HookTask struct {
+		Typ string `xorm:"VARCHAR(16) index"`
+	}
+	if err := x.Sync(new(HookTask)); err != nil {
+		return err
+	}
+
+	// to keep the migration could be rerun
+	exist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "hook_task", "type")
+	if err != nil {
+		return err
+	}
+	if !exist {
+		return nil
+	}
+
+	for i, s := range hookTaskTypes {
+		if _, err := x.Exec("UPDATE hook_task set typ = ? where `type`=?", s, i); err != nil {
+			return err
+		}
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "hook_task", "type"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v162.go b/models/migrations/v1_14/v162.go
new file mode 100644
index 0000000..2e4e0b8
--- /dev/null
+++ b/models/migrations/v1_14/v162.go
@@ -0,0 +1,62 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func ConvertWebhookTaskTypeToString(x *xorm.Engine) error {
+	const (
+		GOGS int = iota + 1
+		SLACK
+		GITEA
+		DISCORD
+		DINGTALK
+		TELEGRAM
+		MSTEAMS
+		FEISHU
+		MATRIX
+		WECHATWORK
+	)
+
+	hookTaskTypes := map[int]string{
+		GITEA:      "gitea",
+		GOGS:       "gogs",
+		SLACK:      "slack",
+		DISCORD:    "discord",
+		DINGTALK:   "dingtalk",
+		TELEGRAM:   "telegram",
+		MSTEAMS:    "msteams",
+		FEISHU:     "feishu",
+		MATRIX:     "matrix",
+		WECHATWORK: "wechatwork",
+	}
+
+	type Webhook struct {
+		Type string `xorm:"char(16) index"`
+	}
+	if err := x.Sync(new(Webhook)); err != nil {
+		return err
+	}
+
+	for i, s := range hookTaskTypes {
+		if _, err := x.Exec("UPDATE webhook set type = ? where hook_task_type=?", s, i); err != nil {
+			return err
+		}
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "webhook", "hook_task_type"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v163.go b/models/migrations/v1_14/v163.go
new file mode 100644
index 0000000..0cd8ba6
--- /dev/null
+++ b/models/migrations/v1_14/v163.go
@@ -0,0 +1,35 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func ConvertTopicNameFrom25To50(x *xorm.Engine) error {
+	type Topic struct {
+		ID          int64  `xorm:"pk autoincr"`
+		Name        string `xorm:"UNIQUE VARCHAR(50)"`
+		RepoCount   int
+		CreatedUnix int64 `xorm:"INDEX created"`
+		UpdatedUnix int64 `xorm:"INDEX updated"`
+	}
+
+	if err := x.Sync(new(Topic)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.RecreateTable(sess, new(Topic)); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v164.go b/models/migrations/v1_14/v164.go
new file mode 100644
index 0000000..54f6951
--- /dev/null
+++ b/models/migrations/v1_14/v164.go
@@ -0,0 +1,37 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+// OAuth2Grant here is a snapshot of models.OAuth2Grant for this version
+// of the database, as it does not appear to have been added as a part
+// of a previous migration.
+type OAuth2Grant struct {
+	ID            int64  `xorm:"pk autoincr"`
+	UserID        int64  `xorm:"INDEX unique(user_application)"`
+	ApplicationID int64  `xorm:"INDEX unique(user_application)"`
+	Counter       int64  `xorm:"NOT NULL DEFAULT 1"`
+	Scope         string `xorm:"TEXT"`
+	Nonce         string `xorm:"TEXT"`
+	CreatedUnix   int64  `xorm:"created"`
+	UpdatedUnix   int64  `xorm:"updated"`
+}
+
+// TableName sets the database table name to be the correct one, as the
+// autogenerated table name for this struct is "o_auth2_grant".
+func (grant *OAuth2Grant) TableName() string {
+	return "oauth2_grant"
+}
+
+func AddScopeAndNonceColumnsToOAuth2Grant(x *xorm.Engine) error {
+	if err := x.Sync(new(OAuth2Grant)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v165.go b/models/migrations/v1_14/v165.go
new file mode 100644
index 0000000..5b1a779
--- /dev/null
+++ b/models/migrations/v1_14/v165.go
@@ -0,0 +1,57 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func ConvertHookTaskTypeToVarcharAndTrim(x *xorm.Engine) error {
+	dbType := x.Dialect().URI().DBType
+	if dbType == schemas.SQLITE { // For SQLITE, varchar or char will always be represented as TEXT
+		return nil
+	}
+
+	type HookTask struct { //nolint:unused
+		Typ string `xorm:"VARCHAR(16) index"`
+	}
+
+	if err := base.ModifyColumn(x, "hook_task", &schemas.Column{
+		Name: "typ",
+		SQLType: schemas.SQLType{
+			Name: "VARCHAR",
+		},
+		Length:         16,
+		Nullable:       true, // To keep compatible as nullable
+		DefaultIsEmpty: true,
+	}); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec("UPDATE hook_task SET typ = TRIM(typ)"); err != nil {
+		return err
+	}
+
+	type Webhook struct { //nolint:unused
+		Type string `xorm:"VARCHAR(16) index"`
+	}
+
+	if err := base.ModifyColumn(x, "webhook", &schemas.Column{
+		Name: "type",
+		SQLType: schemas.SQLType{
+			Name: "VARCHAR",
+		},
+		Length:         16,
+		Nullable:       true, // To keep compatible as nullable
+		DefaultIsEmpty: true,
+	}); err != nil {
+		return err
+	}
+
+	_, err := x.Exec("UPDATE webhook SET type = TRIM(type)")
+	return err
+}
diff --git a/models/migrations/v1_14/v166.go b/models/migrations/v1_14/v166.go
new file mode 100644
index 0000000..e573158
--- /dev/null
+++ b/models/migrations/v1_14/v166.go
@@ -0,0 +1,112 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+
+	"golang.org/x/crypto/argon2"
+	"golang.org/x/crypto/bcrypt"
+	"golang.org/x/crypto/pbkdf2"
+	"golang.org/x/crypto/scrypt"
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func RecalculateUserEmptyPWD(x *xorm.Engine) (err error) {
+	const (
+		algoBcrypt = "bcrypt"
+		algoScrypt = "scrypt"
+		algoArgon2 = "argon2"
+		algoPbkdf2 = "pbkdf2"
+	)
+
+	type User struct {
+		ID                 int64  `xorm:"pk autoincr"`
+		Passwd             string `xorm:"NOT NULL"`
+		PasswdHashAlgo     string `xorm:"NOT NULL DEFAULT 'argon2'"`
+		MustChangePassword bool   `xorm:"NOT NULL DEFAULT false"`
+		LoginType          int
+		LoginName          string
+		Type               int
+		Salt               string `xorm:"VARCHAR(10)"`
+	}
+
+	// hashPassword hash password based on algo and salt
+	// state 461406070c
+	hashPassword := func(passwd, salt, algo string) string {
+		var tempPasswd []byte
+
+		switch algo {
+		case algoBcrypt:
+			tempPasswd, _ = bcrypt.GenerateFromPassword([]byte(passwd), bcrypt.DefaultCost)
+			return string(tempPasswd)
+		case algoScrypt:
+			tempPasswd, _ = scrypt.Key([]byte(passwd), []byte(salt), 65536, 16, 2, 50)
+		case algoArgon2:
+			tempPasswd = argon2.IDKey([]byte(passwd), []byte(salt), 2, 65536, 8, 50)
+		case algoPbkdf2:
+			fallthrough
+		default:
+			tempPasswd = pbkdf2.Key([]byte(passwd), []byte(salt), 10000, 50, sha256.New)
+		}
+
+		return hex.EncodeToString(tempPasswd)
+	}
+
+	// ValidatePassword checks if given password matches the one belongs to the user.
+	// state 461406070c, changed since it's not necessary to be time constant
+	ValidatePassword := func(u *User, passwd string) bool {
+		tempHash := hashPassword(passwd, u.Salt, u.PasswdHashAlgo)
+
+		if u.PasswdHashAlgo != algoBcrypt && u.Passwd == tempHash {
+			return true
+		}
+		if u.PasswdHashAlgo == algoBcrypt && bcrypt.CompareHashAndPassword([]byte(u.Passwd), []byte(passwd)) == nil {
+			return true
+		}
+		return false
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	const batchSize = 100
+
+	for start := 0; ; start += batchSize {
+		users := make([]*User, 0, batchSize)
+		if err = sess.Limit(batchSize, start).Where(builder.Neq{"passwd": ""}, 0).Find(&users); err != nil {
+			return err
+		}
+		if len(users) == 0 {
+			break
+		}
+
+		if err = sess.Begin(); err != nil {
+			return err
+		}
+
+		for _, user := range users {
+			if ValidatePassword(user, "") {
+				user.Passwd = ""
+				user.Salt = ""
+				user.PasswdHashAlgo = ""
+				if _, err = sess.ID(user.ID).Cols("passwd", "salt", "passwd_hash_algo").Update(user); err != nil {
+					return err
+				}
+			}
+		}
+
+		if err = sess.Commit(); err != nil {
+			return err
+		}
+	}
+
+	// delete salt and algo where password is empty
+	_, err = sess.Where(builder.Eq{"passwd": ""}.And(builder.Neq{"salt": ""}.Or(builder.Neq{"passwd_hash_algo": ""}))).
+		Cols("salt", "passwd_hash_algo").Update(&User{})
+
+	return err
+}
diff --git a/models/migrations/v1_14/v167.go b/models/migrations/v1_14/v167.go
new file mode 100644
index 0000000..9d416f6
--- /dev/null
+++ b/models/migrations/v1_14/v167.go
@@ -0,0 +1,23 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddUserRedirect(x *xorm.Engine) (err error) {
+	type UserRedirect struct {
+		ID             int64  `xorm:"pk autoincr"`
+		LowerName      string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		RedirectUserID int64
+	}
+
+	if err := x.Sync(new(UserRedirect)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v168.go b/models/migrations/v1_14/v168.go
new file mode 100644
index 0000000..a30a885
--- /dev/null
+++ b/models/migrations/v1_14/v168.go
@@ -0,0 +1,10 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import "xorm.io/xorm"
+
+func RecreateUserTableToFixDefaultValues(_ *xorm.Engine) error {
+	return nil
+}
diff --git a/models/migrations/v1_14/v169.go b/models/migrations/v1_14/v169.go
new file mode 100644
index 0000000..5b81bb5
--- /dev/null
+++ b/models/migrations/v1_14/v169.go
@@ -0,0 +1,13 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func CommentTypeDeleteBranchUseOldRef(x *xorm.Engine) error {
+	_, err := x.Exec("UPDATE comment SET old_ref = commit_sha, commit_sha = '' WHERE type = 11")
+	return err
+}
diff --git a/models/migrations/v1_14/v170.go b/models/migrations/v1_14/v170.go
new file mode 100644
index 0000000..7b6498a
--- /dev/null
+++ b/models/migrations/v1_14/v170.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddDismissedReviewColumn(x *xorm.Engine) error {
+	type Review struct {
+		Dismissed bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(Review)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v171.go b/models/migrations/v1_14/v171.go
new file mode 100644
index 0000000..51a35a0
--- /dev/null
+++ b/models/migrations/v1_14/v171.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddSortingColToProjectBoard(x *xorm.Engine) error {
+	type ProjectBoard struct {
+		Sorting int8 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(ProjectBoard)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v172.go b/models/migrations/v1_14/v172.go
new file mode 100644
index 0000000..0f9bef9
--- /dev/null
+++ b/models/migrations/v1_14/v172.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddSessionTable(x *xorm.Engine) error {
+	type Session struct {
+		Key    string `xorm:"pk CHAR(16)"`
+		Data   []byte `xorm:"BLOB"`
+		Expiry timeutil.TimeStamp
+	}
+	return x.Sync(new(Session))
+}
diff --git a/models/migrations/v1_14/v173.go b/models/migrations/v1_14/v173.go
new file mode 100644
index 0000000..2d9eee9
--- /dev/null
+++ b/models/migrations/v1_14/v173.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddTimeIDCommentColumn(x *xorm.Engine) error {
+	type Comment struct {
+		TimeID int64
+	}
+
+	if err := x.Sync(new(Comment)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_14/v174.go b/models/migrations/v1_14/v174.go
new file mode 100644
index 0000000..c839e15
--- /dev/null
+++ b/models/migrations/v1_14/v174.go
@@ -0,0 +1,34 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddRepoTransfer(x *xorm.Engine) error {
+	type RepoTransfer struct {
+		ID          int64 `xorm:"pk autoincr"`
+		DoerID      int64
+		RecipientID int64
+		RepoID      int64
+		TeamIDs     []int64
+		CreatedUnix int64 `xorm:"INDEX NOT NULL created"`
+		UpdatedUnix int64 `xorm:"INDEX NOT NULL updated"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(RepoTransfer)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v175.go b/models/migrations/v1_14/v175.go
new file mode 100644
index 0000000..70d72b2
--- /dev/null
+++ b/models/migrations/v1_14/v175.go
@@ -0,0 +1,53 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+	"regexp"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func FixPostgresIDSequences(x *xorm.Engine) error {
+	if !setting.Database.Type.IsPostgreSQL() {
+		return nil
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	var sequences []string
+	schema := sess.Engine().Dialect().URI().Schema
+
+	sess.Engine().SetSchema("")
+	if err := sess.Table("information_schema.sequences").Cols("sequence_name").Where("sequence_name LIKE 'tmp_recreate__%_id_seq%' AND sequence_catalog = ?", setting.Database.Name).Find(&sequences); err != nil {
+		log.Error("Unable to find sequences: %v", err)
+		return err
+	}
+	sess.Engine().SetSchema(schema)
+
+	sequenceRegexp := regexp.MustCompile(`tmp_recreate__(\w+)_id_seq.*`)
+
+	for _, sequence := range sequences {
+		tableName := sequenceRegexp.FindStringSubmatch(sequence)[1]
+		newSequenceName := tableName + "_id_seq"
+		if _, err := sess.Exec(fmt.Sprintf("ALTER SEQUENCE `%s` RENAME TO `%s`", sequence, newSequenceName)); err != nil {
+			log.Error("Unable to rename %s to %s. Error: %v", sequence, newSequenceName, err)
+			return err
+		}
+		if _, err := sess.Exec(fmt.Sprintf("SELECT setval('%s', COALESCE((SELECT MAX(id)+1 FROM `%s`), 1), false)", newSequenceName, tableName)); err != nil {
+			log.Error("Unable to reset sequence %s for %s. Error: %v", newSequenceName, tableName, err)
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v176.go b/models/migrations/v1_14/v176.go
new file mode 100644
index 0000000..1ed49f7
--- /dev/null
+++ b/models/migrations/v1_14/v176.go
@@ -0,0 +1,76 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// RemoveInvalidLabels looks through the database to look for comments and issue_labels
+// that refer to labels do not belong to the repository or organization that repository
+// that the issue is in
+func RemoveInvalidLabels(x *xorm.Engine) error {
+	type Comment struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Type    int   `xorm:"INDEX"`
+		IssueID int64 `xorm:"INDEX"`
+		LabelID int64
+	}
+
+	type Issue struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"INDEX UNIQUE(repo_index)"`
+		Index  int64 `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+	}
+
+	type Repository struct {
+		ID        int64  `xorm:"pk autoincr"`
+		OwnerID   int64  `xorm:"UNIQUE(s) index"`
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	}
+
+	type Label struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"INDEX"`
+		OrgID  int64 `xorm:"INDEX"`
+	}
+
+	type IssueLabel struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IssueID int64 `xorm:"UNIQUE(s)"`
+		LabelID int64 `xorm:"UNIQUE(s)"`
+	}
+
+	if err := x.Sync(new(Comment), new(Issue), new(Repository), new(Label), new(IssueLabel)); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec(`DELETE FROM issue_label WHERE issue_label.id IN (
+		SELECT il_too.id FROM (
+			SELECT il_too_too.id
+				FROM issue_label AS il_too_too
+					INNER JOIN label ON il_too_too.label_id = label.id
+					INNER JOIN issue on issue.id = il_too_too.issue_id
+					INNER JOIN repository on repository.id = issue.repo_id
+				WHERE
+					(label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id)
+	) AS il_too )`); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec(`DELETE FROM comment WHERE comment.id IN (
+		SELECT il_too.id FROM (
+			SELECT com.id
+				FROM comment AS com
+					INNER JOIN label ON com.label_id = label.id
+					INNER JOIN issue on issue.id = com.issue_id
+					INNER JOIN repository on repository.id = issue.repo_id
+				WHERE
+					com.type = ? AND ((label.org_id = 0 AND issue.repo_id != label.repo_id) OR (label.repo_id = 0 AND label.org_id != repository.owner_id))
+	) AS il_too)`, 7); err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_14/v176_test.go b/models/migrations/v1_14/v176_test.go
new file mode 100644
index 0000000..f5e644e
--- /dev/null
+++ b/models/migrations/v1_14/v176_test.go
@@ -0,0 +1,128 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_RemoveInvalidLabels(t *testing.T) {
+	// Models used by the migration
+	type Comment struct {
+		ID           int64 `xorm:"pk autoincr"`
+		Type         int   `xorm:"INDEX"`
+		IssueID      int64 `xorm:"INDEX"`
+		LabelID      int64
+		ShouldRemain bool // <- Flag for testing the migration
+	}
+
+	type Issue struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"INDEX UNIQUE(repo_index)"`
+		Index  int64 `xorm:"UNIQUE(repo_index)"` // Index in one repository.
+	}
+
+	type Repository struct {
+		ID        int64  `xorm:"pk autoincr"`
+		OwnerID   int64  `xorm:"UNIQUE(s) index"`
+		LowerName string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	}
+
+	type Label struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"INDEX"`
+		OrgID  int64 `xorm:"INDEX"`
+	}
+
+	type IssueLabel struct {
+		ID           int64 `xorm:"pk autoincr"`
+		IssueID      int64 `xorm:"UNIQUE(s)"`
+		LabelID      int64 `xorm:"UNIQUE(s)"`
+		ShouldRemain bool  // <- Flag for testing the migration
+	}
+
+	// load and prepare the test database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(Comment), new(Issue), new(Repository), new(IssueLabel), new(Label))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	var issueLabels []*IssueLabel
+	ilPreMigration := map[int64]*IssueLabel{}
+	ilPostMigration := map[int64]*IssueLabel{}
+
+	var comments []*Comment
+	comPreMigration := map[int64]*Comment{}
+	comPostMigration := map[int64]*Comment{}
+
+	// Get pre migration values
+	if err := x.Find(&issueLabels); err != nil {
+		t.Errorf("Unable to find issueLabels: %v", err)
+		return
+	}
+	for _, issueLabel := range issueLabels {
+		ilPreMigration[issueLabel.ID] = issueLabel
+	}
+	if err := x.Find(&comments); err != nil {
+		t.Errorf("Unable to find comments: %v", err)
+		return
+	}
+	for _, comment := range comments {
+		comPreMigration[comment.ID] = comment
+	}
+
+	// Run the migration
+	if err := RemoveInvalidLabels(x); err != nil {
+		t.Errorf("unable to RemoveInvalidLabels: %v", err)
+	}
+
+	// Get the post migration values
+	issueLabels = issueLabels[:0]
+	if err := x.Find(&issueLabels); err != nil {
+		t.Errorf("Unable to find issueLabels: %v", err)
+		return
+	}
+	for _, issueLabel := range issueLabels {
+		ilPostMigration[issueLabel.ID] = issueLabel
+	}
+	comments = comments[:0]
+	if err := x.Find(&comments); err != nil {
+		t.Errorf("Unable to find comments: %v", err)
+		return
+	}
+	for _, comment := range comments {
+		comPostMigration[comment.ID] = comment
+	}
+
+	// Finally test results of the migration
+	for id, comment := range comPreMigration {
+		post, ok := comPostMigration[id]
+		if ok {
+			if !comment.ShouldRemain {
+				t.Errorf("Comment[%d] remained but should have been deleted", id)
+			}
+			assert.Equal(t, comment, post)
+		} else if comment.ShouldRemain {
+			t.Errorf("Comment[%d] was deleted but should have remained", id)
+		}
+	}
+
+	for id, il := range ilPreMigration {
+		post, ok := ilPostMigration[id]
+		if ok {
+			if !il.ShouldRemain {
+				t.Errorf("IssueLabel[%d] remained but should have been deleted", id)
+			}
+			assert.Equal(t, il, post)
+		} else if il.ShouldRemain {
+			t.Errorf("IssueLabel[%d] was deleted but should have remained", id)
+		}
+	}
+}
diff --git a/models/migrations/v1_14/v177.go b/models/migrations/v1_14/v177.go
new file mode 100644
index 0000000..6e1838f
--- /dev/null
+++ b/models/migrations/v1_14/v177.go
@@ -0,0 +1,42 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+// DeleteOrphanedIssueLabels looks through the database for issue_labels where the label no longer exists and deletes them.
+func DeleteOrphanedIssueLabels(x *xorm.Engine) error {
+	type IssueLabel struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IssueID int64 `xorm:"UNIQUE(s)"`
+		LabelID int64 `xorm:"UNIQUE(s)"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(IssueLabel)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	if _, err := sess.Exec(`DELETE FROM issue_label WHERE issue_label.id IN (
+		SELECT ill.id FROM (
+			SELECT il.id
+			FROM issue_label AS il
+				LEFT JOIN label ON il.label_id = label.id
+			WHERE
+				label.id IS NULL
+		) AS ill)`); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_14/v177_test.go b/models/migrations/v1_14/v177_test.go
new file mode 100644
index 0000000..cf5e745
--- /dev/null
+++ b/models/migrations/v1_14/v177_test.go
@@ -0,0 +1,89 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_14 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_DeleteOrphanedIssueLabels(t *testing.T) {
+	// Create the models used in the migration
+	type IssueLabel struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IssueID int64 `xorm:"UNIQUE(s)"`
+		LabelID int64 `xorm:"UNIQUE(s)"`
+	}
+
+	type Label struct {
+		ID              int64 `xorm:"pk autoincr"`
+		RepoID          int64 `xorm:"INDEX"`
+		OrgID           int64 `xorm:"INDEX"`
+		Name            string
+		Description     string
+		Color           string `xorm:"VARCHAR(7)"`
+		NumIssues       int
+		NumClosedIssues int
+		CreatedUnix     timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix     timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(IssueLabel), new(Label))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	var issueLabels []*IssueLabel
+	preMigration := map[int64]*IssueLabel{}
+	postMigration := map[int64]*IssueLabel{}
+
+	// Load issue labels that exist in the database pre-migration
+	if err := x.Find(&issueLabels); err != nil {
+		require.NoError(t, err)
+		return
+	}
+	for _, issueLabel := range issueLabels {
+		preMigration[issueLabel.ID] = issueLabel
+	}
+
+	// Run the migration
+	if err := DeleteOrphanedIssueLabels(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	// Load the remaining issue-labels
+	issueLabels = issueLabels[:0]
+	if err := x.Find(&issueLabels); err != nil {
+		require.NoError(t, err)
+		return
+	}
+	for _, issueLabel := range issueLabels {
+		postMigration[issueLabel.ID] = issueLabel
+	}
+
+	// Now test what is left
+	if _, ok := postMigration[2]; ok {
+		t.Errorf("Orphaned Label[2] survived the migration")
+		return
+	}
+
+	if _, ok := postMigration[5]; ok {
+		t.Errorf("Orphaned Label[5] survived the migration")
+		return
+	}
+
+	for id, post := range postMigration {
+		pre := preMigration[id]
+		assert.Equal(t, pre, post, "migration changed issueLabel %d", id)
+	}
+}
diff --git a/models/migrations/v1_15/main_test.go b/models/migrations/v1_15/main_test.go
new file mode 100644
index 0000000..e496065
--- /dev/null
+++ b/models/migrations/v1_15/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_15/v178.go b/models/migrations/v1_15/v178.go
new file mode 100644
index 0000000..6d236eb
--- /dev/null
+++ b/models/migrations/v1_15/v178.go
@@ -0,0 +1,17 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddLFSMirrorColumns(x *xorm.Engine) error {
+	type Mirror struct {
+		LFS         bool   `xorm:"lfs_enabled NOT NULL DEFAULT false"`
+		LFSEndpoint string `xorm:"lfs_endpoint TEXT"`
+	}
+
+	return x.Sync(new(Mirror))
+}
diff --git a/models/migrations/v1_15/v179.go b/models/migrations/v1_15/v179.go
new file mode 100644
index 0000000..f6b142e
--- /dev/null
+++ b/models/migrations/v1_15/v179.go
@@ -0,0 +1,28 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func ConvertAvatarURLToText(x *xorm.Engine) error {
+	dbType := x.Dialect().URI().DBType
+	if dbType == schemas.SQLITE { // For SQLITE, varchar or char will always be represented as TEXT
+		return nil
+	}
+
+	// Some oauth2 providers may give very long avatar urls (i.e. Google)
+	return base.ModifyColumn(x, "external_login_user", &schemas.Column{
+		Name: "avatar_url",
+		SQLType: schemas.SQLType{
+			Name: schemas.Text,
+		},
+		Nullable:       true,
+		DefaultIsEmpty: true,
+	})
+}
diff --git a/models/migrations/v1_15/v180.go b/models/migrations/v1_15/v180.go
new file mode 100644
index 0000000..c71e771
--- /dev/null
+++ b/models/migrations/v1_15/v180.go
@@ -0,0 +1,121 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func DeleteMigrationCredentials(x *xorm.Engine) (err error) {
+	// Task represents a task
+	type Task struct {
+		ID             int64
+		DoerID         int64 `xorm:"index"` // operator
+		OwnerID        int64 `xorm:"index"` // repo owner id, when creating, the repoID maybe zero
+		RepoID         int64 `xorm:"index"`
+		Type           int
+		Status         int `xorm:"index"`
+		StartTime      int64
+		EndTime        int64
+		PayloadContent string `xorm:"TEXT"`
+		Errors         string `xorm:"TEXT"` // if task failed, saved the error reason
+		Created        int64  `xorm:"created"`
+	}
+
+	const TaskTypeMigrateRepo = 0
+	const TaskStatusStopped = 2
+
+	const batchSize = 100
+
+	// only match migration tasks, that are not pending or running
+	cond := builder.Eq{
+		"type": TaskTypeMigrateRepo,
+	}.And(builder.Gte{
+		"status": TaskStatusStopped,
+	})
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	for start := 0; ; start += batchSize {
+		tasks := make([]*Task, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Where(cond, 0).Find(&tasks); err != nil {
+			return err
+		}
+		if len(tasks) == 0 {
+			break
+		}
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+		for _, t := range tasks {
+			if t.PayloadContent, err = removeCredentials(t.PayloadContent); err != nil {
+				return err
+			}
+			if _, err := sess.ID(t.ID).Cols("payload_content").Update(t); err != nil {
+				return err
+			}
+		}
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+	}
+	return err
+}
+
+func removeCredentials(payload string) (string, error) {
+	// MigrateOptions defines the way a repository gets migrated
+	// this is for internal usage by migrations module and func who interact with it
+	type MigrateOptions struct {
+		// required: true
+		CloneAddr             string `json:"clone_addr" binding:"Required"`
+		CloneAddrEncrypted    string `json:"clone_addr_encrypted,omitempty"`
+		AuthUsername          string `json:"auth_username"`
+		AuthPassword          string `json:"-"`
+		AuthPasswordEncrypted string `json:"auth_password_encrypted,omitempty"`
+		AuthToken             string `json:"-"`
+		AuthTokenEncrypted    string `json:"auth_token_encrypted,omitempty"`
+		// required: true
+		UID int `json:"uid" binding:"Required"`
+		// required: true
+		RepoName        string `json:"repo_name" binding:"Required"`
+		Mirror          bool   `json:"mirror"`
+		LFS             bool   `json:"lfs"`
+		LFSEndpoint     string `json:"lfs_endpoint"`
+		Private         bool   `json:"private"`
+		Description     string `json:"description"`
+		OriginalURL     string
+		GitServiceType  int
+		Wiki            bool
+		Issues          bool
+		Milestones      bool
+		Labels          bool
+		Releases        bool
+		Comments        bool
+		PullRequests    bool
+		ReleaseAssets   bool
+		MigrateToRepoID int64
+		MirrorInterval  string `json:"mirror_interval"`
+	}
+
+	var opts MigrateOptions
+	err := json.Unmarshal([]byte(payload), &opts)
+	if err != nil {
+		return "", err
+	}
+
+	opts.AuthPassword = ""
+	opts.AuthToken = ""
+	opts.CloneAddr = util.SanitizeCredentialURLs(opts.CloneAddr)
+
+	confBytes, err := json.Marshal(opts)
+	if err != nil {
+		return "", err
+	}
+	return string(confBytes), nil
+}
diff --git a/models/migrations/v1_15/v181.go b/models/migrations/v1_15/v181.go
new file mode 100644
index 0000000..2185ed0
--- /dev/null
+++ b/models/migrations/v1_15/v181.go
@@ -0,0 +1,91 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"strings"
+
+	"xorm.io/xorm"
+)
+
+func AddPrimaryEmail2EmailAddress(x *xorm.Engine) error {
+	type User struct {
+		ID       int64  `xorm:"pk autoincr"`
+		Email    string `xorm:"NOT NULL"`
+		IsActive bool   `xorm:"INDEX"` // Activate primary email
+	}
+
+	type EmailAddress1 struct {
+		ID          int64  `xorm:"pk autoincr"`
+		UID         int64  `xorm:"INDEX NOT NULL"`
+		Email       string `xorm:"UNIQUE NOT NULL"`
+		LowerEmail  string
+		IsActivated bool
+		IsPrimary   bool `xorm:"DEFAULT(false) NOT NULL"`
+	}
+
+	// Add lower_email and is_primary columns
+	if err := x.Table("email_address").Sync(new(EmailAddress1)); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec("UPDATE email_address SET lower_email=LOWER(email), is_primary=?", false); err != nil {
+		return err
+	}
+
+	type EmailAddress struct {
+		ID          int64  `xorm:"pk autoincr"`
+		UID         int64  `xorm:"INDEX NOT NULL"`
+		Email       string `xorm:"UNIQUE NOT NULL"`
+		LowerEmail  string `xorm:"UNIQUE NOT NULL"`
+		IsActivated bool
+		IsPrimary   bool `xorm:"DEFAULT(false) NOT NULL"`
+	}
+
+	// change lower_email as unique
+	if err := x.Sync(new(EmailAddress)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	const batchSize = 100
+
+	for start := 0; ; start += batchSize {
+		users := make([]*User, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Find(&users); err != nil {
+			return err
+		}
+		if len(users) == 0 {
+			break
+		}
+
+		for _, user := range users {
+			exist, err := sess.Where("email=?", user.Email).Table("email_address").Exist()
+			if err != nil {
+				return err
+			}
+			if !exist {
+				if _, err := sess.Insert(&EmailAddress{
+					UID:         user.ID,
+					Email:       user.Email,
+					LowerEmail:  strings.ToLower(user.Email),
+					IsActivated: user.IsActive,
+					IsPrimary:   true,
+				}); err != nil {
+					return err
+				}
+			} else {
+				if _, err := sess.Where("email=?", user.Email).Cols("is_primary").Update(&EmailAddress{
+					IsPrimary: true,
+				}); err != nil {
+					return err
+				}
+			}
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_15/v181_test.go b/models/migrations/v1_15/v181_test.go
new file mode 100644
index 0000000..ead26f5
--- /dev/null
+++ b/models/migrations/v1_15/v181_test.go
@@ -0,0 +1,56 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"strings"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddPrimaryEmail2EmailAddress(t *testing.T) {
+	type User struct {
+		ID       int64
+		Email    string
+		IsActive bool
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(User))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	err := AddPrimaryEmail2EmailAddress(x)
+	require.NoError(t, err)
+
+	type EmailAddress struct {
+		ID          int64  `xorm:"pk autoincr"`
+		UID         int64  `xorm:"INDEX NOT NULL"`
+		Email       string `xorm:"UNIQUE NOT NULL"`
+		LowerEmail  string `xorm:"UNIQUE NOT NULL"`
+		IsActivated bool
+		IsPrimary   bool `xorm:"DEFAULT(false) NOT NULL"`
+	}
+
+	users := make([]User, 0, 20)
+	err = x.Find(&users)
+	require.NoError(t, err)
+
+	for _, user := range users {
+		var emailAddress EmailAddress
+		has, err := x.Where("lower_email=?", strings.ToLower(user.Email)).Get(&emailAddress)
+		require.NoError(t, err)
+		assert.True(t, has)
+		assert.True(t, emailAddress.IsPrimary)
+		assert.EqualValues(t, user.IsActive, emailAddress.IsActivated)
+		assert.EqualValues(t, user.ID, emailAddress.UID)
+	}
+}
diff --git a/models/migrations/v1_15/v182.go b/models/migrations/v1_15/v182.go
new file mode 100644
index 0000000..9ca500c
--- /dev/null
+++ b/models/migrations/v1_15/v182.go
@@ -0,0 +1,41 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIssueResourceIndexTable(x *xorm.Engine) error {
+	type ResourceIndex struct {
+		GroupID  int64 `xorm:"pk"`
+		MaxIndex int64 `xorm:"index"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Table("issue_index").Sync(new(ResourceIndex)); err != nil {
+		return err
+	}
+
+	// Remove data we're goint to rebuild
+	if _, err := sess.Table("issue_index").Where("1=1").Delete(&ResourceIndex{}); err != nil {
+		return err
+	}
+
+	// Create current data for all repositories with issues and PRs
+	if _, err := sess.Exec("INSERT INTO issue_index (group_id, max_index) " +
+		"SELECT max_data.repo_id, max_data.max_index " +
+		"FROM ( SELECT issue.repo_id AS repo_id, max(issue.`index`) AS max_index " +
+		"FROM issue GROUP BY issue.repo_id) AS max_data"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_15/v182_test.go b/models/migrations/v1_15/v182_test.go
new file mode 100644
index 0000000..eb21311
--- /dev/null
+++ b/models/migrations/v1_15/v182_test.go
@@ -0,0 +1,61 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddIssueResourceIndexTable(t *testing.T) {
+	// Create the models used in the migration
+	type Issue struct {
+		ID     int64 `xorm:"pk autoincr"`
+		RepoID int64 `xorm:"UNIQUE(s)"`
+		Index  int64 `xorm:"UNIQUE(s)"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(Issue))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	// Run the migration
+	if err := AddIssueResourceIndexTable(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	type ResourceIndex struct {
+		GroupID  int64 `xorm:"pk"`
+		MaxIndex int64 `xorm:"index"`
+	}
+
+	start := 0
+	const batchSize = 1000
+	for {
+		indexes := make([]ResourceIndex, 0, batchSize)
+		err := x.Table("issue_index").Limit(batchSize, start).Find(&indexes)
+		require.NoError(t, err)
+
+		for _, idx := range indexes {
+			var maxIndex int
+			has, err := x.SQL("SELECT max(`index`) FROM issue WHERE repo_id = ?", idx.GroupID).Get(&maxIndex)
+			require.NoError(t, err)
+			assert.True(t, has)
+			assert.EqualValues(t, maxIndex, idx.MaxIndex)
+		}
+		if len(indexes) < batchSize {
+			break
+		}
+		start += len(indexes)
+	}
+}
diff --git a/models/migrations/v1_15/v183.go b/models/migrations/v1_15/v183.go
new file mode 100644
index 0000000..effad1b
--- /dev/null
+++ b/models/migrations/v1_15/v183.go
@@ -0,0 +1,38 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreatePushMirrorTable(x *xorm.Engine) error {
+	type PushMirror struct {
+		ID         int64 `xorm:"pk autoincr"`
+		RepoID     int64 `xorm:"INDEX"`
+		RemoteName string
+
+		Interval       time.Duration
+		CreatedUnix    timeutil.TimeStamp `xorm:"created"`
+		LastUpdateUnix timeutil.TimeStamp `xorm:"INDEX last_update"`
+		LastError      string             `xorm:"text"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(PushMirror)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_15/v184.go b/models/migrations/v1_15/v184.go
new file mode 100644
index 0000000..871c9db
--- /dev/null
+++ b/models/migrations/v1_15/v184.go
@@ -0,0 +1,66 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func RenameTaskErrorsToMessage(x *xorm.Engine) error {
+	type Task struct {
+		Errors string `xorm:"TEXT"` // if task failed, saved the error reason
+		Type   int
+		Status int `xorm:"index"`
+	}
+
+	// This migration maybe rerun so that we should check if it has been run
+	messageExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "task", "message")
+	if err != nil {
+		return err
+	}
+
+	if messageExist {
+		errorsExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "task", "errors")
+		if err != nil {
+			return err
+		}
+		if !errorsExist {
+			return nil
+		}
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(Task)); err != nil {
+		return fmt.Errorf("error on Sync: %w", err)
+	}
+
+	if messageExist {
+		// if both errors and message exist, drop message at first
+		if err := base.DropTableColumns(sess, "task", "message"); err != nil {
+			return err
+		}
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `task` CHANGE errors message text"); err != nil {
+			return err
+		}
+	} else {
+		if _, err := sess.Exec("ALTER TABLE `task` RENAME COLUMN errors TO message"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_15/v185.go b/models/migrations/v1_15/v185.go
new file mode 100644
index 0000000..e5878ec
--- /dev/null
+++ b/models/migrations/v1_15/v185.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddRepoArchiver(x *xorm.Engine) error {
+	// RepoArchiver represents all archivers
+	type RepoArchiver struct {
+		ID          int64 `xorm:"pk autoincr"`
+		RepoID      int64 `xorm:"index unique(s)"`
+		Type        int   `xorm:"unique(s)"`
+		Status      int
+		CommitID    string `xorm:"VARCHAR(40) unique(s)"`
+		CreatedUnix int64  `xorm:"INDEX NOT NULL created"`
+	}
+	return x.Sync(new(RepoArchiver))
+}
diff --git a/models/migrations/v1_15/v186.go b/models/migrations/v1_15/v186.go
new file mode 100644
index 0000000..01aab3a
--- /dev/null
+++ b/models/migrations/v1_15/v186.go
@@ -0,0 +1,25 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateProtectedTagTable(x *xorm.Engine) error {
+	type ProtectedTag struct {
+		ID               int64 `xorm:"pk autoincr"`
+		RepoID           int64
+		NamePattern      string
+		AllowlistUserIDs []int64 `xorm:"JSON TEXT"`
+		AllowlistTeamIDs []int64 `xorm:"JSON TEXT"`
+
+		CreatedUnix timeutil.TimeStamp `xorm:"created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	return x.Sync(new(ProtectedTag))
+}
diff --git a/models/migrations/v1_15/v187.go b/models/migrations/v1_15/v187.go
new file mode 100644
index 0000000..21cd677
--- /dev/null
+++ b/models/migrations/v1_15/v187.go
@@ -0,0 +1,47 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func DropWebhookColumns(x *xorm.Engine) error {
+	// Make sure the columns exist before dropping them
+	type Webhook struct {
+		Signature string `xorm:"TEXT"`
+		IsSSL     bool   `xorm:"is_ssl"`
+	}
+	if err := x.Sync(new(Webhook)); err != nil {
+		return err
+	}
+
+	type HookTask struct {
+		Typ         string `xorm:"VARCHAR(16) index"`
+		URL         string `xorm:"TEXT"`
+		Signature   string `xorm:"TEXT"`
+		HTTPMethod  string `xorm:"http_method"`
+		ContentType int
+		IsSSL       bool
+	}
+	if err := x.Sync(new(HookTask)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "webhook", "signature", "is_ssl"); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "hook_task", "typ", "url", "signature", "http_method", "content_type", "is_ssl"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_15/v188.go b/models/migrations/v1_15/v188.go
new file mode 100644
index 0000000..71e45ca
--- /dev/null
+++ b/models/migrations/v1_15/v188.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_15 //nolint
+
+import "xorm.io/xorm"
+
+func AddKeyIsVerified(x *xorm.Engine) error {
+	type GPGKey struct {
+		Verified bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(GPGKey))
+}
diff --git a/models/migrations/v1_16/main_test.go b/models/migrations/v1_16/main_test.go
new file mode 100644
index 0000000..4961177
--- /dev/null
+++ b/models/migrations/v1_16/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_16/v189.go b/models/migrations/v1_16/v189.go
new file mode 100644
index 0000000..5649645
--- /dev/null
+++ b/models/migrations/v1_16/v189.go
@@ -0,0 +1,111 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"encoding/binary"
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/json"
+
+	"xorm.io/xorm"
+)
+
+func UnwrapLDAPSourceCfg(x *xorm.Engine) error {
+	jsonUnmarshalHandleDoubleEncode := func(bs []byte, v any) error {
+		err := json.Unmarshal(bs, v)
+		if err != nil {
+			ok := true
+			rs := []byte{}
+			temp := make([]byte, 2)
+			for _, rn := range string(bs) {
+				if rn > 0xffff {
+					ok = false
+					break
+				}
+				binary.LittleEndian.PutUint16(temp, uint16(rn))
+				rs = append(rs, temp...)
+			}
+			if ok {
+				if rs[0] == 0xff && rs[1] == 0xfe {
+					rs = rs[2:]
+				}
+				err = json.Unmarshal(rs, v)
+			}
+		}
+		if err != nil && len(bs) > 2 && bs[0] == 0xff && bs[1] == 0xfe {
+			err = json.Unmarshal(bs[2:], v)
+		}
+		return err
+	}
+
+	// LoginSource represents an external way for authorizing users.
+	type LoginSource struct {
+		ID        int64 `xorm:"pk autoincr"`
+		Type      int
+		IsActived bool   `xorm:"INDEX NOT NULL DEFAULT false"`
+		IsActive  bool   `xorm:"INDEX NOT NULL DEFAULT false"`
+		Cfg       string `xorm:"TEXT"`
+	}
+
+	const ldapType = 2
+	const dldapType = 5
+
+	type WrappedSource struct {
+		Source map[string]any
+	}
+
+	// change lower_email as unique
+	if err := x.Sync(new(LoginSource)); err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	const batchSize = 100
+	for start := 0; ; start += batchSize {
+		sources := make([]*LoginSource, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Where("`type` = ? OR `type` = ?", ldapType, dldapType).Find(&sources); err != nil {
+			return err
+		}
+		if len(sources) == 0 {
+			break
+		}
+
+		for _, source := range sources {
+			wrapped := &WrappedSource{
+				Source: map[string]any{},
+			}
+			err := jsonUnmarshalHandleDoubleEncode([]byte(source.Cfg), &wrapped)
+			if err != nil {
+				return fmt.Errorf("failed to unmarshal %s: %w", source.Cfg, err)
+			}
+			if len(wrapped.Source) > 0 {
+				bs, err := json.Marshal(wrapped.Source)
+				if err != nil {
+					return err
+				}
+				source.Cfg = string(bs)
+				if _, err := sess.ID(source.ID).Cols("cfg").Update(source); err != nil {
+					return err
+				}
+			}
+		}
+	}
+
+	if _, err := x.SetExpr("is_active", "is_actived").Update(&LoginSource{}); err != nil {
+		return fmt.Errorf("SetExpr Update failed:  %w", err)
+	}
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "login_source", "is_actived"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_16/v189_test.go b/models/migrations/v1_16/v189_test.go
new file mode 100644
index 0000000..88c6ebd
--- /dev/null
+++ b/models/migrations/v1_16/v189_test.go
@@ -0,0 +1,83 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/json"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// LoginSource represents an external way for authorizing users.
+type LoginSourceOriginalV189 struct {
+	ID        int64 `xorm:"pk autoincr"`
+	Type      int
+	IsActived bool   `xorm:"INDEX NOT NULL DEFAULT false"`
+	Cfg       string `xorm:"TEXT"`
+	Expected  string `xorm:"TEXT"`
+}
+
+func (ls *LoginSourceOriginalV189) TableName() string {
+	return "login_source"
+}
+
+func Test_UnwrapLDAPSourceCfg(t *testing.T) {
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(LoginSourceOriginalV189))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	// LoginSource represents an external way for authorizing users.
+	type LoginSource struct {
+		ID       int64 `xorm:"pk autoincr"`
+		Type     int
+		IsActive bool   `xorm:"INDEX NOT NULL DEFAULT false"`
+		Cfg      string `xorm:"TEXT"`
+		Expected string `xorm:"TEXT"`
+	}
+
+	// Run the migration
+	if err := UnwrapLDAPSourceCfg(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	const batchSize = 100
+	for start := 0; ; start += batchSize {
+		sources := make([]*LoginSource, 0, batchSize)
+		if err := x.Table("login_source").Limit(batchSize, start).Find(&sources); err != nil {
+			require.NoError(t, err)
+			return
+		}
+
+		if len(sources) == 0 {
+			break
+		}
+
+		for _, source := range sources {
+			converted := map[string]any{}
+			expected := map[string]any{}
+
+			if err := json.Unmarshal([]byte(source.Cfg), &converted); err != nil {
+				require.NoError(t, err)
+				return
+			}
+
+			if err := json.Unmarshal([]byte(source.Expected), &expected); err != nil {
+				require.NoError(t, err)
+				return
+			}
+
+			assert.EqualValues(t, expected, converted, "UnwrapLDAPSourceCfg failed for %d", source.ID)
+			assert.EqualValues(t, source.ID%2 == 0, source.IsActive, "UnwrapLDAPSourceCfg failed for %d", source.ID)
+		}
+	}
+}
diff --git a/models/migrations/v1_16/v190.go b/models/migrations/v1_16/v190.go
new file mode 100644
index 0000000..5953802
--- /dev/null
+++ b/models/migrations/v1_16/v190.go
@@ -0,0 +1,23 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddAgitFlowPullRequest(x *xorm.Engine) error {
+	type PullRequestFlow int
+
+	type PullRequest struct {
+		Flow PullRequestFlow `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(PullRequest)); err != nil {
+		return fmt.Errorf("sync2: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_16/v191.go b/models/migrations/v1_16/v191.go
new file mode 100644
index 0000000..c618783
--- /dev/null
+++ b/models/migrations/v1_16/v191.go
@@ -0,0 +1,28 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AlterIssueAndCommentTextFieldsToLongText(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `issue` CHANGE `content` `content` LONGTEXT"); err != nil {
+			return err
+		}
+		if _, err := sess.Exec("ALTER TABLE `comment` CHANGE `content` `content` LONGTEXT, CHANGE `patch` `patch` LONGTEXT"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_16/v192.go b/models/migrations/v1_16/v192.go
new file mode 100644
index 0000000..2d5d158
--- /dev/null
+++ b/models/migrations/v1_16/v192.go
@@ -0,0 +1,19 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func RecreateIssueResourceIndexTable(x *xorm.Engine) error {
+	type IssueIndex struct {
+		GroupID  int64 `xorm:"pk"`
+		MaxIndex int64 `xorm:"index"`
+	}
+
+	return base.RecreateTables(new(IssueIndex))(x)
+}
diff --git a/models/migrations/v1_16/v193.go b/models/migrations/v1_16/v193.go
new file mode 100644
index 0000000..8d3ce7a
--- /dev/null
+++ b/models/migrations/v1_16/v193.go
@@ -0,0 +1,32 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddRepoIDForAttachment(x *xorm.Engine) error {
+	type Attachment struct {
+		ID         int64  `xorm:"pk autoincr"`
+		UUID       string `xorm:"uuid UNIQUE"`
+		RepoID     int64  `xorm:"INDEX"` // this should not be zero
+		IssueID    int64  `xorm:"INDEX"` // maybe zero when creating
+		ReleaseID  int64  `xorm:"INDEX"` // maybe zero when creating
+		UploaderID int64  `xorm:"INDEX DEFAULT 0"`
+	}
+	if err := x.Sync(new(Attachment)); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec("UPDATE `attachment` set repo_id = (SELECT repo_id FROM `issue` WHERE `issue`.id = `attachment`.issue_id) WHERE `attachment`.issue_id > 0"); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec("UPDATE `attachment` set repo_id = (SELECT repo_id FROM `release` WHERE `release`.id = `attachment`.release_id) WHERE `attachment`.release_id > 0"); err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_16/v193_test.go b/models/migrations/v1_16/v193_test.go
new file mode 100644
index 0000000..0da6708
--- /dev/null
+++ b/models/migrations/v1_16/v193_test.go
@@ -0,0 +1,81 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddRepoIDForAttachment(t *testing.T) {
+	type Attachment struct {
+		ID         int64  `xorm:"pk autoincr"`
+		UUID       string `xorm:"uuid UNIQUE"`
+		IssueID    int64  `xorm:"INDEX"` // maybe zero when creating
+		ReleaseID  int64  `xorm:"INDEX"` // maybe zero when creating
+		UploaderID int64  `xorm:"INDEX DEFAULT 0"`
+	}
+
+	type Issue struct {
+		ID     int64
+		RepoID int64
+	}
+
+	type Release struct {
+		ID     int64
+		RepoID int64
+	}
+
+	// Prepare and load the testing database
+	x, deferrable := migration_tests.PrepareTestEnv(t, 0, new(Attachment), new(Issue), new(Release))
+	defer deferrable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	// Run the migration
+	if err := AddRepoIDForAttachment(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	type NewAttachment struct {
+		ID         int64  `xorm:"pk autoincr"`
+		UUID       string `xorm:"uuid UNIQUE"`
+		RepoID     int64  `xorm:"INDEX"` // this should not be zero
+		IssueID    int64  `xorm:"INDEX"` // maybe zero when creating
+		ReleaseID  int64  `xorm:"INDEX"` // maybe zero when creating
+		UploaderID int64  `xorm:"INDEX DEFAULT 0"`
+	}
+
+	var issueAttachments []*NewAttachment
+	err := x.Table("attachment").Where("issue_id > 0").Find(&issueAttachments)
+	require.NoError(t, err)
+	for _, attach := range issueAttachments {
+		assert.Positive(t, attach.RepoID)
+		assert.Positive(t, attach.IssueID)
+		var issue Issue
+		has, err := x.ID(attach.IssueID).Get(&issue)
+		require.NoError(t, err)
+		assert.True(t, has)
+		assert.EqualValues(t, attach.RepoID, issue.RepoID)
+	}
+
+	var releaseAttachments []*NewAttachment
+	err = x.Table("attachment").Where("release_id > 0").Find(&releaseAttachments)
+	require.NoError(t, err)
+	for _, attach := range releaseAttachments {
+		assert.Positive(t, attach.RepoID)
+		assert.Positive(t, attach.ReleaseID)
+		var release Release
+		has, err := x.ID(attach.ReleaseID).Get(&release)
+		require.NoError(t, err)
+		assert.True(t, has)
+		assert.EqualValues(t, attach.RepoID, release.RepoID)
+	}
+}
diff --git a/models/migrations/v1_16/v194.go b/models/migrations/v1_16/v194.go
new file mode 100644
index 0000000..6aa13c5
--- /dev/null
+++ b/models/migrations/v1_16/v194.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddBranchProtectionUnprotectedFilesColumn(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		UnprotectedFilePatterns string `xorm:"TEXT"`
+	}
+
+	if err := x.Sync(new(ProtectedBranch)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_16/v195.go b/models/migrations/v1_16/v195.go
new file mode 100644
index 0000000..6d7e941
--- /dev/null
+++ b/models/migrations/v1_16/v195.go
@@ -0,0 +1,46 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddTableCommitStatusIndex(x *xorm.Engine) error {
+	// CommitStatusIndex represents a table for commit status index
+	type CommitStatusIndex struct {
+		ID       int64
+		RepoID   int64  `xorm:"unique(repo_sha)"`
+		SHA      string `xorm:"unique(repo_sha)"`
+		MaxIndex int64  `xorm:"index"`
+	}
+
+	if err := x.Sync(new(CommitStatusIndex)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	// Remove data we're goint to rebuild
+	if _, err := sess.Table("commit_status_index").Where("1=1").Delete(&CommitStatusIndex{}); err != nil {
+		return err
+	}
+
+	// Create current data for all repositories with issues and PRs
+	if _, err := sess.Exec("INSERT INTO commit_status_index (repo_id, sha, max_index) " +
+		"SELECT max_data.repo_id, max_data.sha, max_data.max_index " +
+		"FROM ( SELECT commit_status.repo_id AS repo_id, commit_status.sha AS sha, max(commit_status.`index`) AS max_index " +
+		"FROM commit_status GROUP BY commit_status.repo_id, commit_status.sha) AS max_data"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_16/v195_test.go b/models/migrations/v1_16/v195_test.go
new file mode 100644
index 0000000..9a62fc9
--- /dev/null
+++ b/models/migrations/v1_16/v195_test.go
@@ -0,0 +1,64 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddTableCommitStatusIndex(t *testing.T) {
+	// Create the models used in the migration
+	type CommitStatus struct {
+		ID     int64  `xorm:"pk autoincr"`
+		Index  int64  `xorm:"INDEX UNIQUE(repo_sha_index)"`
+		RepoID int64  `xorm:"INDEX UNIQUE(repo_sha_index)"`
+		SHA    string `xorm:"VARCHAR(64) NOT NULL INDEX UNIQUE(repo_sha_index)"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(CommitStatus))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	// Run the migration
+	if err := AddTableCommitStatusIndex(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	type CommitStatusIndex struct {
+		ID       int64
+		RepoID   int64  `xorm:"unique(repo_sha)"`
+		SHA      string `xorm:"unique(repo_sha)"`
+		MaxIndex int64  `xorm:"index"`
+	}
+
+	start := 0
+	const batchSize = 1000
+	for {
+		indexes := make([]CommitStatusIndex, 0, batchSize)
+		err := x.Table("commit_status_index").Limit(batchSize, start).Find(&indexes)
+		require.NoError(t, err)
+
+		for _, idx := range indexes {
+			var maxIndex int
+			has, err := x.SQL("SELECT max(`index`) FROM commit_status WHERE repo_id = ? AND sha = ?", idx.RepoID, idx.SHA).Get(&maxIndex)
+			require.NoError(t, err)
+			assert.True(t, has)
+			assert.EqualValues(t, maxIndex, idx.MaxIndex)
+		}
+		if len(indexes) < batchSize {
+			break
+		}
+		start += len(indexes)
+	}
+}
diff --git a/models/migrations/v1_16/v196.go b/models/migrations/v1_16/v196.go
new file mode 100644
index 0000000..7cbafc6
--- /dev/null
+++ b/models/migrations/v1_16/v196.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddColorColToProjectBoard(x *xorm.Engine) error {
+	type ProjectBoard struct {
+		Color string `xorm:"VARCHAR(7)"`
+	}
+
+	if err := x.Sync(new(ProjectBoard)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_16/v197.go b/models/migrations/v1_16/v197.go
new file mode 100644
index 0000000..97888b2
--- /dev/null
+++ b/models/migrations/v1_16/v197.go
@@ -0,0 +1,19 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddRenamedBranchTable(x *xorm.Engine) error {
+	type RenamedBranch struct {
+		ID          int64 `xorm:"pk autoincr"`
+		RepoID      int64 `xorm:"INDEX NOT NULL"`
+		From        string
+		To          string
+		CreatedUnix int64 `xorm:"created"`
+	}
+	return x.Sync(new(RenamedBranch))
+}
diff --git a/models/migrations/v1_16/v198.go b/models/migrations/v1_16/v198.go
new file mode 100644
index 0000000..115bb31
--- /dev/null
+++ b/models/migrations/v1_16/v198.go
@@ -0,0 +1,32 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddTableIssueContentHistory(x *xorm.Engine) error {
+	type IssueContentHistory struct {
+		ID             int64 `xorm:"pk autoincr"`
+		PosterID       int64
+		IssueID        int64              `xorm:"INDEX"`
+		CommentID      int64              `xorm:"INDEX"`
+		EditedUnix     timeutil.TimeStamp `xorm:"INDEX"`
+		ContentText    string             `xorm:"LONGTEXT"`
+		IsFirstCreated bool
+		IsDeleted      bool
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Sync(new(IssueContentHistory)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_16/v199.go b/models/migrations/v1_16/v199.go
new file mode 100644
index 0000000..6adcf89
--- /dev/null
+++ b/models/migrations/v1_16/v199.go
@@ -0,0 +1,6 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+// We used to use a table `remote_version` to store information for updater, now we use `AppState`, so this migration task is a no-op now.
diff --git a/models/migrations/v1_16/v200.go b/models/migrations/v1_16/v200.go
new file mode 100644
index 0000000..c08c20e
--- /dev/null
+++ b/models/migrations/v1_16/v200.go
@@ -0,0 +1,22 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddTableAppState(x *xorm.Engine) error {
+	type AppState struct {
+		ID       string `xorm:"pk varchar(200)"`
+		Revision int64
+		Content  string `xorm:"LONGTEXT"`
+	}
+	if err := x.Sync(new(AppState)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_16/v201.go b/models/migrations/v1_16/v201.go
new file mode 100644
index 0000000..35e0c9f
--- /dev/null
+++ b/models/migrations/v1_16/v201.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func DropTableRemoteVersion(x *xorm.Engine) error {
+	// drop the orphaned table introduced in `v199`, now the update checker also uses AppState, do not need this table
+	_ = x.DropTables("remote_version")
+	return nil
+}
diff --git a/models/migrations/v1_16/v202.go b/models/migrations/v1_16/v202.go
new file mode 100644
index 0000000..6ba3615
--- /dev/null
+++ b/models/migrations/v1_16/v202.go
@@ -0,0 +1,23 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func CreateUserSettingsTable(x *xorm.Engine) error {
+	type UserSetting struct {
+		ID           int64  `xorm:"pk autoincr"`
+		UserID       int64  `xorm:"index unique(key_userid)"`              // to load all of someone's settings
+		SettingKey   string `xorm:"varchar(255) index unique(key_userid)"` // ensure key is always lowercase
+		SettingValue string `xorm:"text"`
+	}
+	if err := x.Sync(new(UserSetting)); err != nil {
+		return fmt.Errorf("sync2: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_16/v203.go b/models/migrations/v1_16/v203.go
new file mode 100644
index 0000000..e8e6b52
--- /dev/null
+++ b/models/migrations/v1_16/v203.go
@@ -0,0 +1,17 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddProjectIssueSorting(x *xorm.Engine) error {
+	// ProjectIssue saves relation from issue to a project
+	type ProjectIssue struct {
+		Sorting int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(ProjectIssue))
+}
diff --git a/models/migrations/v1_16/v204.go b/models/migrations/v1_16/v204.go
new file mode 100644
index 0000000..ece03e1
--- /dev/null
+++ b/models/migrations/v1_16/v204.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import "xorm.io/xorm"
+
+func AddSSHKeyIsVerified(x *xorm.Engine) error {
+	type PublicKey struct {
+		Verified bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(PublicKey))
+}
diff --git a/models/migrations/v1_16/v205.go b/models/migrations/v1_16/v205.go
new file mode 100644
index 0000000..d6c5770
--- /dev/null
+++ b/models/migrations/v1_16/v205.go
@@ -0,0 +1,42 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func MigrateUserPasswordSalt(x *xorm.Engine) error {
+	dbType := x.Dialect().URI().DBType
+	// For SQLITE, the max length doesn't matter.
+	if dbType == schemas.SQLITE {
+		return nil
+	}
+
+	if err := base.ModifyColumn(x, "user", &schemas.Column{
+		Name: "rands",
+		SQLType: schemas.SQLType{
+			Name: "VARCHAR",
+		},
+		Length: 32,
+		// MySQL will like us again.
+		Nullable:       true,
+		DefaultIsEmpty: true,
+	}); err != nil {
+		return err
+	}
+
+	return base.ModifyColumn(x, "user", &schemas.Column{
+		Name: "salt",
+		SQLType: schemas.SQLType{
+			Name: "VARCHAR",
+		},
+		Length:         32,
+		Nullable:       true,
+		DefaultIsEmpty: true,
+	})
+}
diff --git a/models/migrations/v1_16/v206.go b/models/migrations/v1_16/v206.go
new file mode 100644
index 0000000..581a7d7
--- /dev/null
+++ b/models/migrations/v1_16/v206.go
@@ -0,0 +1,28 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func AddAuthorizeColForTeamUnit(x *xorm.Engine) error {
+	type TeamUnit struct {
+		ID         int64 `xorm:"pk autoincr"`
+		OrgID      int64 `xorm:"INDEX"`
+		TeamID     int64 `xorm:"UNIQUE(s)"`
+		Type       int   `xorm:"UNIQUE(s)"`
+		AccessMode int
+	}
+
+	if err := x.Sync(new(TeamUnit)); err != nil {
+		return fmt.Errorf("sync2: %w", err)
+	}
+
+	// migrate old permission
+	_, err := x.Exec("UPDATE team_unit SET access_mode = (SELECT authorize FROM team WHERE team.id = team_unit.team_id)")
+	return err
+}
diff --git a/models/migrations/v1_16/v207.go b/models/migrations/v1_16/v207.go
new file mode 100644
index 0000000..91208f0
--- /dev/null
+++ b/models/migrations/v1_16/v207.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddWebAuthnCred(x *xorm.Engine) error {
+	// NO-OP Don't migrate here - let v210 do this.
+
+	return nil
+}
diff --git a/models/migrations/v1_16/v208.go b/models/migrations/v1_16/v208.go
new file mode 100644
index 0000000..1a11ef0
--- /dev/null
+++ b/models/migrations/v1_16/v208.go
@@ -0,0 +1,13 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func UseBase32HexForCredIDInWebAuthnCredential(x *xorm.Engine) error {
+	// noop
+	return nil
+}
diff --git a/models/migrations/v1_16/v209.go b/models/migrations/v1_16/v209.go
new file mode 100644
index 0000000..be3100e
--- /dev/null
+++ b/models/migrations/v1_16/v209.go
@@ -0,0 +1,16 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func IncreaseCredentialIDTo410(x *xorm.Engine) error {
+	// no-op
+	// v208 was completely wrong
+	// So now we have to no-op again.
+
+	return nil
+}
diff --git a/models/migrations/v1_16/v210.go b/models/migrations/v1_16/v210.go
new file mode 100644
index 0000000..db45b11
--- /dev/null
+++ b/models/migrations/v1_16/v210.go
@@ -0,0 +1,177 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"crypto/ecdh"
+	"encoding/base32"
+	"errors"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func parseU2FRegistration(raw []byte) (pubKey *ecdh.PublicKey, keyHandle []byte, err error) {
+	if len(raw) < 69 {
+		return nil, nil, errors.New("data is too short")
+	}
+	if raw[0] != 0x05 {
+		return nil, nil, errors.New("invalid reserved byte")
+	}
+	raw = raw[1:]
+
+	pubKey, err = ecdh.P256().NewPublicKey(raw[:65])
+	if err != nil {
+		return nil, nil, err
+	}
+	raw = raw[65:]
+
+	khLen := int(raw[0])
+	if len(raw) < khLen {
+		return nil, nil, errors.New("invalid key handle")
+	}
+	raw = raw[1:]
+	keyHandle = raw[:khLen]
+
+	return pubKey, keyHandle, nil
+}
+
+// v208 migration was completely broken
+func RemigrateU2FCredentials(x *xorm.Engine) error {
+	// Create webauthnCredential table
+	type webauthnCredential struct {
+		ID              int64 `xorm:"pk autoincr"`
+		Name            string
+		LowerName       string `xorm:"unique(s)"`
+		UserID          int64  `xorm:"INDEX unique(s)"`
+		CredentialID    string `xorm:"INDEX VARCHAR(410)"` // CredentalID in U2F is at most 255bytes / 5 * 8 = 408 - add a few extra characters for safety
+		PublicKey       []byte
+		AttestationType string
+		AAGUID          []byte
+		SignCount       uint32 `xorm:"BIGINT"`
+		CloneWarning    bool
+		CreatedUnix     timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix     timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	if err := x.Sync(&webauthnCredential{}); err != nil {
+		return err
+	}
+
+	switch x.Dialect().URI().DBType {
+	case schemas.MYSQL:
+		_, err := x.Exec("ALTER TABLE webauthn_credential MODIFY COLUMN credential_id VARCHAR(410)")
+		if err != nil {
+			return err
+		}
+	case schemas.POSTGRES:
+		_, err := x.Exec("ALTER TABLE webauthn_credential ALTER COLUMN credential_id TYPE VARCHAR(410)")
+		if err != nil {
+			return err
+		}
+	default:
+		// SQLite doesn't support ALTER COLUMN, and it already makes String _TEXT_ by default so no migration needed
+		// nor is there any need to re-migrate
+	}
+
+	exist, err := x.IsTableExist("u2f_registration")
+	if err != nil {
+		return err
+	}
+	if !exist {
+		return nil
+	}
+
+	// Now migrate the old u2f registrations to the new format
+	type u2fRegistration struct {
+		ID          int64 `xorm:"pk autoincr"`
+		Name        string
+		UserID      int64 `xorm:"INDEX"`
+		Raw         []byte
+		Counter     uint32             `xorm:"BIGINT"`
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	var start int
+	regs := make([]*u2fRegistration, 0, 50)
+	for {
+		err := x.OrderBy("id").Limit(50, start).Find(&regs)
+		if err != nil {
+			return err
+		}
+
+		err = func() error {
+			sess := x.NewSession()
+			defer sess.Close()
+			if err := sess.Begin(); err != nil {
+				return fmt.Errorf("unable to allow start session. Error: %w", err)
+			}
+			for _, reg := range regs {
+				pubKey, keyHandle, err := parseU2FRegistration(reg.Raw)
+				if err != nil {
+					continue
+				}
+				remigrated := &webauthnCredential{
+					ID:              reg.ID,
+					Name:            reg.Name,
+					LowerName:       strings.ToLower(reg.Name),
+					UserID:          reg.UserID,
+					CredentialID:    base32.HexEncoding.EncodeToString(keyHandle),
+					PublicKey:       pubKey.Bytes(),
+					AttestationType: "fido-u2f",
+					AAGUID:          []byte{},
+					SignCount:       reg.Counter,
+					UpdatedUnix:     reg.UpdatedUnix,
+					CreatedUnix:     reg.CreatedUnix,
+				}
+
+				has, err := sess.ID(reg.ID).Get(new(webauthnCredential))
+				if err != nil {
+					return fmt.Errorf("unable to get webauthn_credential[%d]. Error: %w", reg.ID, err)
+				}
+				if !has {
+					has, err := sess.Where("`lower_name`=?", remigrated.LowerName).And("`user_id`=?", remigrated.UserID).Exist(new(webauthnCredential))
+					if err != nil {
+						return fmt.Errorf("unable to check webauthn_credential[lower_name: %s, user_id: %d]. Error: %w", remigrated.LowerName, remigrated.UserID, err)
+					}
+					if !has {
+						_, err = sess.Insert(remigrated)
+						if err != nil {
+							return fmt.Errorf("unable to (re)insert webauthn_credential[%d]. Error: %w", reg.ID, err)
+						}
+
+						continue
+					}
+				}
+
+				_, err = sess.ID(remigrated.ID).AllCols().Update(remigrated)
+				if err != nil {
+					return fmt.Errorf("unable to update webauthn_credential[%d]. Error: %w", reg.ID, err)
+				}
+			}
+			return sess.Commit()
+		}()
+		if err != nil {
+			return err
+		}
+
+		if len(regs) < 50 {
+			break
+		}
+		start += 50
+		regs = regs[:0]
+	}
+
+	if x.Dialect().URI().DBType == schemas.POSTGRES {
+		if _, err := x.Exec("SELECT setval('webauthn_credential_id_seq', COALESCE((SELECT MAX(id)+1 FROM `webauthn_credential`), 1), false)"); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_16/v210_test.go b/models/migrations/v1_16/v210_test.go
new file mode 100644
index 0000000..7321350
--- /dev/null
+++ b/models/migrations/v1_16/v210_test.go
@@ -0,0 +1,88 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_16 //nolint
+
+import (
+	"encoding/hex"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm/schemas"
+)
+
+func TestParseU2FRegistration(t *testing.T) {
+	// test vectors from https://github.com/tstranex/u2f/blob/d21a03e0b1d9fc1df59ff54e7a513655c1748b0c/register_test.go#L15
+
+	const testRegRespHex = "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"
+
+	regResp, err := hex.DecodeString(testRegRespHex)
+	require.NoError(t, err)
+	pubKey, keyHandle, err := parseU2FRegistration(regResp)
+	require.NoError(t, err)
+	assert.Equal(t, "04b174bc49c7ca254b70d2e5c207cee9cf174820ebd77ea3c65508c26da51b657c1cc6b952f8621697936482da0a6d3d3826a59095daf6cd7c03e2e60385d2f6d9", hex.EncodeToString(pubKey.Bytes()))
+	assert.Equal(t, "2a552dfdb7477ed65fd84133f86196010b2215b57da75d315b7b9e8fe2e3925a6019551bab61d16591659cbaf00b4950f7abfe6660e2e006f76868b772d70c25", hex.EncodeToString(keyHandle))
+}
+
+func Test_RemigrateU2FCredentials(t *testing.T) {
+	// Create webauthnCredential table
+	type WebauthnCredential struct {
+		ID              int64 `xorm:"pk autoincr"`
+		Name            string
+		LowerName       string `xorm:"unique(s)"`
+		UserID          int64  `xorm:"INDEX unique(s)"`
+		CredentialID    string `xorm:"INDEX VARCHAR(410)"` // CredentalID in U2F is at most 255bytes / 5 * 8 = 408 - add a few extra characters for safety
+		PublicKey       []byte
+		AttestationType string
+		SignCount       uint32 `xorm:"BIGINT"`
+		CloneWarning    bool
+	}
+
+	// Now migrate the old u2f registrations to the new format
+	type U2fRegistration struct {
+		ID          int64 `xorm:"pk autoincr"`
+		Name        string
+		UserID      int64 `xorm:"INDEX"`
+		Raw         []byte
+		Counter     uint32             `xorm:"BIGINT"`
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	type ExpectedWebauthnCredential struct {
+		ID           int64  `xorm:"pk autoincr"`
+		CredentialID string `xorm:"INDEX VARCHAR(410)"` // CredentalID in U2F is at most 255bytes / 5 * 8 = 408 - add a few extra characters for safety
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(WebauthnCredential), new(U2fRegistration), new(ExpectedWebauthnCredential))
+	if x == nil || t.Failed() {
+		defer deferable()
+		return
+	}
+	defer deferable()
+
+	if x.Dialect().URI().DBType == schemas.SQLITE {
+		return
+	}
+
+	// Run the migration
+	if err := RemigrateU2FCredentials(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	expected := []ExpectedWebauthnCredential{}
+	err := x.Table("expected_webauthn_credential").Asc("id").Find(&expected)
+	require.NoError(t, err)
+
+	got := []ExpectedWebauthnCredential{}
+	err = x.Table("webauthn_credential").Select("id, credential_id").Asc("id").Find(&got)
+	require.NoError(t, err)
+
+	assert.EqualValues(t, expected, got)
+}
diff --git a/models/migrations/v1_17/main_test.go b/models/migrations/v1_17/main_test.go
new file mode 100644
index 0000000..8a787f6
--- /dev/null
+++ b/models/migrations/v1_17/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_17/v211.go b/models/migrations/v1_17/v211.go
new file mode 100644
index 0000000..9b72c86
--- /dev/null
+++ b/models/migrations/v1_17/v211.go
@@ -0,0 +1,12 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func CreateForeignReferenceTable(_ *xorm.Engine) error {
+	return nil // This table was dropped in v1_19/v237.go
+}
diff --git a/models/migrations/v1_17/v212.go b/models/migrations/v1_17/v212.go
new file mode 100644
index 0000000..e3f9437
--- /dev/null
+++ b/models/migrations/v1_17/v212.go
@@ -0,0 +1,93 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddPackageTables(x *xorm.Engine) error {
+	type Package struct {
+		ID               int64  `xorm:"pk autoincr"`
+		OwnerID          int64  `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		RepoID           int64  `xorm:"INDEX"`
+		Type             string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name             string `xorm:"NOT NULL"`
+		LowerName        string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		SemverCompatible bool   `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(Package)); err != nil {
+		return err
+	}
+
+	type PackageVersion struct {
+		ID            int64              `xorm:"pk autoincr"`
+		PackageID     int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		CreatorID     int64              `xorm:"NOT NULL DEFAULT 0"`
+		Version       string             `xorm:"NOT NULL"`
+		LowerVersion  string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		CreatedUnix   timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+		IsInternal    bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+		MetadataJSON  string             `xorm:"metadata_json TEXT"`
+		DownloadCount int64              `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(PackageVersion)); err != nil {
+		return err
+	}
+
+	type PackageProperty struct {
+		ID      int64  `xorm:"pk autoincr"`
+		RefType int64  `xorm:"INDEX NOT NULL"`
+		RefID   int64  `xorm:"INDEX NOT NULL"`
+		Name    string `xorm:"INDEX NOT NULL"`
+		Value   string `xorm:"TEXT NOT NULL"`
+	}
+
+	if err := x.Sync(new(PackageProperty)); err != nil {
+		return err
+	}
+
+	type PackageFile struct {
+		ID           int64              `xorm:"pk autoincr"`
+		VersionID    int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		BlobID       int64              `xorm:"INDEX NOT NULL"`
+		Name         string             `xorm:"NOT NULL"`
+		LowerName    string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		CompositeKey string             `xorm:"UNIQUE(s) INDEX"`
+		IsLead       bool               `xorm:"NOT NULL DEFAULT false"`
+		CreatedUnix  timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+	}
+
+	if err := x.Sync(new(PackageFile)); err != nil {
+		return err
+	}
+
+	type PackageBlob struct {
+		ID          int64              `xorm:"pk autoincr"`
+		Size        int64              `xorm:"NOT NULL DEFAULT 0"`
+		HashMD5     string             `xorm:"hash_md5 char(32) UNIQUE(md5) INDEX NOT NULL"`
+		HashSHA1    string             `xorm:"hash_sha1 char(40) UNIQUE(sha1) INDEX NOT NULL"`
+		HashSHA256  string             `xorm:"hash_sha256 char(64) UNIQUE(sha256) INDEX NOT NULL"`
+		HashSHA512  string             `xorm:"hash_sha512 char(128) UNIQUE(sha512) INDEX NOT NULL"`
+		CreatedUnix timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+	}
+
+	if err := x.Sync(new(PackageBlob)); err != nil {
+		return err
+	}
+
+	type PackageBlobUpload struct {
+		ID             string             `xorm:"pk"`
+		BytesReceived  int64              `xorm:"NOT NULL DEFAULT 0"`
+		HashStateBytes []byte             `xorm:"BLOB"`
+		CreatedUnix    timeutil.TimeStamp `xorm:"created NOT NULL"`
+		UpdatedUnix    timeutil.TimeStamp `xorm:"updated INDEX NOT NULL"`
+	}
+
+	return x.Sync(new(PackageBlobUpload))
+}
diff --git a/models/migrations/v1_17/v213.go b/models/migrations/v1_17/v213.go
new file mode 100644
index 0000000..bb3f466
--- /dev/null
+++ b/models/migrations/v1_17/v213.go
@@ -0,0 +1,17 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddAllowMaintainerEdit(x *xorm.Engine) error {
+	// PullRequest represents relation between pull request and repositories.
+	type PullRequest struct {
+		AllowMaintainerEdit bool `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(PullRequest))
+}
diff --git a/models/migrations/v1_17/v214.go b/models/migrations/v1_17/v214.go
new file mode 100644
index 0000000..2268164
--- /dev/null
+++ b/models/migrations/v1_17/v214.go
@@ -0,0 +1,22 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddAutoMergeTable(x *xorm.Engine) error {
+	type MergeStyle string
+	type PullAutoMerge struct {
+		ID          int64      `xorm:"pk autoincr"`
+		PullID      int64      `xorm:"UNIQUE"`
+		DoerID      int64      `xorm:"NOT NULL"`
+		MergeStyle  MergeStyle `xorm:"varchar(30)"`
+		Message     string     `xorm:"LONGTEXT"`
+		CreatedUnix int64      `xorm:"created"`
+	}
+
+	return x.Sync(&PullAutoMerge{})
+}
diff --git a/models/migrations/v1_17/v215.go b/models/migrations/v1_17/v215.go
new file mode 100644
index 0000000..b338f85
--- /dev/null
+++ b/models/migrations/v1_17/v215.go
@@ -0,0 +1,24 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"code.gitea.io/gitea/models/pull"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddReviewViewedFiles(x *xorm.Engine) error {
+	type ReviewState struct {
+		ID           int64                       `xorm:"pk autoincr"`
+		UserID       int64                       `xorm:"NOT NULL UNIQUE(pull_commit_user)"`
+		PullID       int64                       `xorm:"NOT NULL INDEX UNIQUE(pull_commit_user) DEFAULT 0"`
+		CommitSHA    string                      `xorm:"NOT NULL VARCHAR(40) UNIQUE(pull_commit_user)"`
+		UpdatedFiles map[string]pull.ViewedState `xorm:"NOT NULL LONGTEXT JSON"`
+		UpdatedUnix  timeutil.TimeStamp          `xorm:"updated"`
+	}
+
+	return x.Sync(new(ReviewState))
+}
diff --git a/models/migrations/v1_17/v216.go b/models/migrations/v1_17/v216.go
new file mode 100644
index 0000000..268f472
--- /dev/null
+++ b/models/migrations/v1_17/v216.go
@@ -0,0 +1,7 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+// This migration added non-ideal indices to the action table which on larger datasets slowed things down
+// it has been superseded by v218.go
diff --git a/models/migrations/v1_17/v217.go b/models/migrations/v1_17/v217.go
new file mode 100644
index 0000000..3f970b6
--- /dev/null
+++ b/models/migrations/v1_17/v217.go
@@ -0,0 +1,25 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AlterHookTaskTextFieldsToLongText(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `hook_task` CHANGE `payload_content` `payload_content` LONGTEXT, CHANGE `request_content` `request_content` LONGTEXT, change `response_content` `response_content` LONGTEXT"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_17/v218.go b/models/migrations/v1_17/v218.go
new file mode 100644
index 0000000..4c05a9b
--- /dev/null
+++ b/models/migrations/v1_17/v218.go
@@ -0,0 +1,52 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+type improveActionTableIndicesAction struct {
+	ID          int64 `xorm:"pk autoincr"`
+	UserID      int64 // Receiver user id.
+	OpType      int
+	ActUserID   int64 // Action user id.
+	RepoID      int64
+	CommentID   int64 `xorm:"INDEX"`
+	IsDeleted   bool  `xorm:"NOT NULL DEFAULT false"`
+	RefName     string
+	IsPrivate   bool               `xorm:"NOT NULL DEFAULT false"`
+	Content     string             `xorm:"TEXT"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+// TableName sets the name of this table
+func (*improveActionTableIndicesAction) TableName() string {
+	return "action"
+}
+
+// TableIndices implements xorm's TableIndices interface
+func (*improveActionTableIndicesAction) TableIndices() []*schemas.Index {
+	repoIndex := schemas.NewIndex("r_u_d", schemas.IndexType)
+	repoIndex.AddColumn("repo_id", "user_id", "is_deleted")
+
+	actUserIndex := schemas.NewIndex("au_r_c_u_d", schemas.IndexType)
+	actUserIndex.AddColumn("act_user_id", "repo_id", "created_unix", "user_id", "is_deleted")
+	indices := []*schemas.Index{actUserIndex, repoIndex}
+	if setting.Database.Type.IsPostgreSQL() {
+		cudIndex := schemas.NewIndex("c_u_d", schemas.IndexType)
+		cudIndex.AddColumn("created_unix", "user_id", "is_deleted")
+		indices = append(indices, cudIndex)
+	}
+
+	return indices
+}
+
+func ImproveActionTableIndices(x *xorm.Engine) error {
+	return x.Sync(&improveActionTableIndicesAction{})
+}
diff --git a/models/migrations/v1_17/v219.go b/models/migrations/v1_17/v219.go
new file mode 100644
index 0000000..d266029
--- /dev/null
+++ b/models/migrations/v1_17/v219.go
@@ -0,0 +1,30 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"time"
+
+	"code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddSyncOnCommitColForPushMirror(x *xorm.Engine) error {
+	type PushMirror struct {
+		ID         int64            `xorm:"pk autoincr"`
+		RepoID     int64            `xorm:"INDEX"`
+		Repo       *repo.Repository `xorm:"-"`
+		RemoteName string
+
+		SyncOnCommit   bool `xorm:"NOT NULL DEFAULT true"`
+		Interval       time.Duration
+		CreatedUnix    timeutil.TimeStamp `xorm:"created"`
+		LastUpdateUnix timeutil.TimeStamp `xorm:"INDEX last_update"`
+		LastError      string             `xorm:"text"`
+	}
+
+	return x.Sync(new(PushMirror))
+}
diff --git a/models/migrations/v1_17/v220.go b/models/migrations/v1_17/v220.go
new file mode 100644
index 0000000..d400716
--- /dev/null
+++ b/models/migrations/v1_17/v220.go
@@ -0,0 +1,23 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	packages_model "code.gitea.io/gitea/models/packages"
+	container_module "code.gitea.io/gitea/modules/packages/container"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func AddContainerRepositoryProperty(x *xorm.Engine) (err error) {
+	if x.Dialect().URI().DBType == schemas.SQLITE {
+		_, err = x.Exec("INSERT INTO package_property (ref_type, ref_id, name, value) SELECT ?, p.id, ?, u.lower_name || '/' || p.lower_name FROM package p JOIN `user` u ON p.owner_id = u.id WHERE p.type = ?",
+			packages_model.PropertyTypePackage, container_module.PropertyRepository, packages_model.TypeContainer)
+	} else {
+		_, err = x.Exec("INSERT INTO package_property (ref_type, ref_id, name, value) SELECT ?, p.id, ?, CONCAT(u.lower_name, '/', p.lower_name) FROM package p JOIN `user` u ON p.owner_id = u.id WHERE p.type = ?",
+			packages_model.PropertyTypePackage, container_module.PropertyRepository, packages_model.TypeContainer)
+	}
+	return err
+}
diff --git a/models/migrations/v1_17/v221.go b/models/migrations/v1_17/v221.go
new file mode 100644
index 0000000..9e15938
--- /dev/null
+++ b/models/migrations/v1_17/v221.go
@@ -0,0 +1,74 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"encoding/base32"
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func StoreWebauthnCredentialIDAsBytes(x *xorm.Engine) error {
+	// Create webauthnCredential table
+	type webauthnCredential struct {
+		ID           int64 `xorm:"pk autoincr"`
+		Name         string
+		LowerName    string `xorm:"unique(s)"`
+		UserID       int64  `xorm:"INDEX unique(s)"`
+		CredentialID string `xorm:"INDEX VARCHAR(410)"`
+		// Note the lack of INDEX here - these will be created once the column is renamed in v223.go
+		CredentialIDBytes []byte `xorm:"VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+		PublicKey         []byte
+		AttestationType   string
+		AAGUID            []byte
+		SignCount         uint32 `xorm:"BIGINT"`
+		CloneWarning      bool
+		CreatedUnix       timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix       timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	if err := x.Sync(&webauthnCredential{}); err != nil {
+		return err
+	}
+
+	var start int
+	creds := make([]*webauthnCredential, 0, 50)
+	for {
+		err := x.Select("id, credential_id").OrderBy("id").Limit(50, start).Find(&creds)
+		if err != nil {
+			return err
+		}
+
+		err = func() error {
+			sess := x.NewSession()
+			defer sess.Close()
+			if err := sess.Begin(); err != nil {
+				return fmt.Errorf("unable to allow start session. Error: %w", err)
+			}
+			for _, cred := range creds {
+				cred.CredentialIDBytes, err = base32.HexEncoding.DecodeString(cred.CredentialID)
+				if err != nil {
+					return fmt.Errorf("unable to parse credential id %s for credential[%d]: %w", cred.CredentialID, cred.ID, err)
+				}
+				count, err := sess.ID(cred.ID).Cols("credential_id_bytes").Update(cred)
+				if count != 1 || err != nil {
+					return fmt.Errorf("unable to update credential id bytes for credential[%d]: %d,%w", cred.ID, count, err)
+				}
+			}
+			return sess.Commit()
+		}()
+		if err != nil {
+			return err
+		}
+
+		if len(creds) < 50 {
+			break
+		}
+		start += 50
+		creds = creds[:0]
+	}
+	return nil
+}
diff --git a/models/migrations/v1_17/v221_test.go b/models/migrations/v1_17/v221_test.go
new file mode 100644
index 0000000..0f6db2a
--- /dev/null
+++ b/models/migrations/v1_17/v221_test.go
@@ -0,0 +1,63 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"encoding/base32"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_StoreWebauthnCredentialIDAsBytes(t *testing.T) {
+	// Create webauthnCredential table
+	type WebauthnCredential struct {
+		ID              int64 `xorm:"pk autoincr"`
+		Name            string
+		LowerName       string `xorm:"unique(s)"`
+		UserID          int64  `xorm:"INDEX unique(s)"`
+		CredentialID    string `xorm:"INDEX VARCHAR(410)"`
+		PublicKey       []byte
+		AttestationType string
+		AAGUID          []byte
+		SignCount       uint32 `xorm:"BIGINT"`
+		CloneWarning    bool
+	}
+
+	type ExpectedWebauthnCredential struct {
+		ID           int64  `xorm:"pk autoincr"`
+		CredentialID string // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+	}
+
+	type ConvertedWebauthnCredential struct {
+		ID                int64  `xorm:"pk autoincr"`
+		CredentialIDBytes []byte `xorm:"VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(WebauthnCredential), new(ExpectedWebauthnCredential))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	err := StoreWebauthnCredentialIDAsBytes(x)
+	require.NoError(t, err)
+
+	expected := []ExpectedWebauthnCredential{}
+	err = x.Table("expected_webauthn_credential").Asc("id").Find(&expected)
+	require.NoError(t, err)
+
+	got := []ConvertedWebauthnCredential{}
+	err = x.Table("webauthn_credential").Select("id, credential_id_bytes").Asc("id").Find(&got)
+	require.NoError(t, err)
+
+	for i, e := range expected {
+		credIDBytes, _ := base32.HexEncoding.DecodeString(e.CredentialID)
+		assert.Equal(t, credIDBytes, got[i].CredentialIDBytes)
+	}
+}
diff --git a/models/migrations/v1_17/v222.go b/models/migrations/v1_17/v222.go
new file mode 100644
index 0000000..2ffb94e
--- /dev/null
+++ b/models/migrations/v1_17/v222.go
@@ -0,0 +1,64 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func DropOldCredentialIDColumn(x *xorm.Engine) error {
+	// This migration maybe rerun so that we should check if it has been run
+	credentialIDExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id")
+	if err != nil {
+		return err
+	}
+	if !credentialIDExist {
+		// Column is already non-extant
+		return nil
+	}
+	credentialIDBytesExists, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id_bytes")
+	if err != nil {
+		return err
+	}
+	if !credentialIDBytesExists {
+		// looks like 221 hasn't properly run
+		return fmt.Errorf("webauthn_credential does not have a credential_id_bytes column... it is not safe to run this migration")
+	}
+
+	// Create webauthnCredential table
+	type webauthnCredential struct {
+		ID           int64 `xorm:"pk autoincr"`
+		Name         string
+		LowerName    string `xorm:"unique(s)"`
+		UserID       int64  `xorm:"INDEX unique(s)"`
+		CredentialID string `xorm:"INDEX VARCHAR(410)"`
+		// Note the lack of the INDEX on CredentialIDBytes - we will add this in v223.go
+		CredentialIDBytes []byte `xorm:"VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+		PublicKey         []byte
+		AttestationType   string
+		AAGUID            []byte
+		SignCount         uint32 `xorm:"BIGINT"`
+		CloneWarning      bool
+		CreatedUnix       timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix       timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	if err := x.Sync(&webauthnCredential{}); err != nil {
+		return err
+	}
+
+	// Drop the old credential ID
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := base.DropTableColumns(sess, "webauthn_credential", "credential_id"); err != nil {
+		return fmt.Errorf("unable to drop old credentialID column: %w", err)
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_17/v223.go b/models/migrations/v1_17/v223.go
new file mode 100644
index 0000000..3592eb1
--- /dev/null
+++ b/models/migrations/v1_17/v223.go
@@ -0,0 +1,98 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_17 //nolint
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func RenameCredentialIDBytes(x *xorm.Engine) error {
+	// This migration maybe rerun so that we should check if it has been run
+	credentialIDExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id")
+	if err != nil {
+		return err
+	}
+	if credentialIDExist {
+		credentialIDBytesExists, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webauthn_credential", "credential_id_bytes")
+		if err != nil {
+			return err
+		}
+		if !credentialIDBytesExists {
+			return nil
+		}
+	}
+
+	err = func() error {
+		// webauthnCredential table
+		type webauthnCredential struct {
+			ID        int64 `xorm:"pk autoincr"`
+			Name      string
+			LowerName string `xorm:"unique(s)"`
+			UserID    int64  `xorm:"INDEX unique(s)"`
+			// Note the lack of INDEX here
+			CredentialIDBytes []byte `xorm:"VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+			PublicKey         []byte
+			AttestationType   string
+			AAGUID            []byte
+			SignCount         uint32 `xorm:"BIGINT"`
+			CloneWarning      bool
+			CreatedUnix       timeutil.TimeStamp `xorm:"INDEX created"`
+			UpdatedUnix       timeutil.TimeStamp `xorm:"INDEX updated"`
+		}
+		sess := x.NewSession()
+		defer sess.Close()
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		if err := sess.Sync(new(webauthnCredential)); err != nil {
+			return fmt.Errorf("error on Sync: %w", err)
+		}
+
+		if credentialIDExist {
+			// if both errors and message exist, drop message at first
+			if err := base.DropTableColumns(sess, "webauthn_credential", "credential_id"); err != nil {
+				return err
+			}
+		}
+
+		if setting.Database.Type.IsMySQL() {
+			if _, err := sess.Exec("ALTER TABLE `webauthn_credential` CHANGE credential_id_bytes credential_id VARBINARY(1024)"); err != nil {
+				return err
+			}
+		} else {
+			if _, err := sess.Exec("ALTER TABLE `webauthn_credential` RENAME COLUMN credential_id_bytes TO credential_id"); err != nil {
+				return err
+			}
+		}
+		return sess.Commit()
+	}()
+	if err != nil {
+		return err
+	}
+
+	// Create webauthnCredential table
+	type webauthnCredential struct {
+		ID              int64 `xorm:"pk autoincr"`
+		Name            string
+		LowerName       string `xorm:"unique(s)"`
+		UserID          int64  `xorm:"INDEX unique(s)"`
+		CredentialID    []byte `xorm:"INDEX VARBINARY(1024)"` // CredentialID is at most 1023 bytes as per spec released 20 July 2022
+		PublicKey       []byte
+		AttestationType string
+		AAGUID          []byte
+		SignCount       uint32 `xorm:"BIGINT"`
+		CloneWarning    bool
+		CreatedUnix     timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix     timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+	return x.Sync(&webauthnCredential{})
+}
diff --git a/models/migrations/v1_18/main_test.go b/models/migrations/v1_18/main_test.go
new file mode 100644
index 0000000..329aa20
--- /dev/null
+++ b/models/migrations/v1_18/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_18/v224.go b/models/migrations/v1_18/v224.go
new file mode 100644
index 0000000..f3d522b
--- /dev/null
+++ b/models/migrations/v1_18/v224.go
@@ -0,0 +1,27 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func CreateUserBadgesTable(x *xorm.Engine) error {
+	type Badge struct {
+		ID          int64 `xorm:"pk autoincr"`
+		Description string
+		ImageURL    string
+	}
+
+	type userBadge struct {
+		ID      int64 `xorm:"pk autoincr"`
+		BadgeID int64
+		UserID  int64 `xorm:"INDEX"`
+	}
+
+	if err := x.Sync(new(Badge)); err != nil {
+		return err
+	}
+	return x.Sync(new(userBadge))
+}
diff --git a/models/migrations/v1_18/v225.go b/models/migrations/v1_18/v225.go
new file mode 100644
index 0000000..b0ac377
--- /dev/null
+++ b/models/migrations/v1_18/v225.go
@@ -0,0 +1,28 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AlterPublicGPGKeyContentFieldsToMediumText(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `gpg_key` CHANGE `content` `content` MEDIUMTEXT"); err != nil {
+			return err
+		}
+		if _, err := sess.Exec("ALTER TABLE `public_key` CHANGE `content` `content` MEDIUMTEXT"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_18/v226.go b/models/migrations/v1_18/v226.go
new file mode 100644
index 0000000..f87e24b
--- /dev/null
+++ b/models/migrations/v1_18/v226.go
@@ -0,0 +1,14 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func FixPackageSemverField(x *xorm.Engine) error {
+	_, err := x.Exec(builder.Update(builder.Eq{"semver_compatible": false}).From("`package`").Where(builder.In("`type`", "conan", "generic")))
+	return err
+}
diff --git a/models/migrations/v1_18/v227.go b/models/migrations/v1_18/v227.go
new file mode 100644
index 0000000..5fe5dcd
--- /dev/null
+++ b/models/migrations/v1_18/v227.go
@@ -0,0 +1,23 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+type SystemSetting struct {
+	ID           int64              `xorm:"pk autoincr"`
+	SettingKey   string             `xorm:"varchar(255) unique"` // ensure key is always lowercase
+	SettingValue string             `xorm:"text"`
+	Version      int                `xorm:"version"` // prevent to override
+	Created      timeutil.TimeStamp `xorm:"created"`
+	Updated      timeutil.TimeStamp `xorm:"updated"`
+}
+
+func CreateSystemSettingsTable(x *xorm.Engine) error {
+	return x.Sync(new(SystemSetting))
+}
diff --git a/models/migrations/v1_18/v228.go b/models/migrations/v1_18/v228.go
new file mode 100644
index 0000000..3e7a36d
--- /dev/null
+++ b/models/migrations/v1_18/v228.go
@@ -0,0 +1,25 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddTeamInviteTable(x *xorm.Engine) error {
+	type TeamInvite struct {
+		ID          int64              `xorm:"pk autoincr"`
+		Token       string             `xorm:"UNIQUE(token) INDEX NOT NULL DEFAULT ''"`
+		InviterID   int64              `xorm:"NOT NULL DEFAULT 0"`
+		OrgID       int64              `xorm:"INDEX NOT NULL DEFAULT 0"`
+		TeamID      int64              `xorm:"UNIQUE(team_mail) INDEX NOT NULL DEFAULT 0"`
+		Email       string             `xorm:"UNIQUE(team_mail) NOT NULL DEFAULT ''"`
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	return x.Sync(new(TeamInvite))
+}
diff --git a/models/migrations/v1_18/v229.go b/models/migrations/v1_18/v229.go
new file mode 100644
index 0000000..10d9f35
--- /dev/null
+++ b/models/migrations/v1_18/v229.go
@@ -0,0 +1,46 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/issues"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func UpdateOpenMilestoneCounts(x *xorm.Engine) error {
+	var openMilestoneIDs []int64
+	err := x.Table("milestone").Select("id").Where(builder.Neq{"is_closed": 1}).Find(&openMilestoneIDs)
+	if err != nil {
+		return fmt.Errorf("error selecting open milestone IDs: %w", err)
+	}
+
+	for _, id := range openMilestoneIDs {
+		_, err := x.ID(id).
+			SetExpr("num_issues", builder.Select("count(*)").From("issue").Where(
+				builder.Eq{"milestone_id": id},
+			)).
+			SetExpr("num_closed_issues", builder.Select("count(*)").From("issue").Where(
+				builder.Eq{
+					"milestone_id": id,
+					"is_closed":    true,
+				},
+			)).
+			Update(&issues.Milestone{})
+		if err != nil {
+			return fmt.Errorf("error updating issue counts in milestone %d: %w", id, err)
+		}
+		_, err = x.Exec("UPDATE `milestone` SET completeness=100*num_closed_issues/(CASE WHEN num_issues > 0 THEN num_issues ELSE 1 END) WHERE id=?",
+			id,
+		)
+		if err != nil {
+			return fmt.Errorf("error setting completeness on milestone %d: %w", id, err)
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_18/v229_test.go b/models/migrations/v1_18/v229_test.go
new file mode 100644
index 0000000..b20d0ff
--- /dev/null
+++ b/models/migrations/v1_18/v229_test.go
@@ -0,0 +1,45 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/issues"
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_UpdateOpenMilestoneCounts(t *testing.T) {
+	type ExpectedMilestone issues.Milestone
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(issues.Milestone), new(ExpectedMilestone), new(issues.Issue))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	if err := UpdateOpenMilestoneCounts(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	expected := []ExpectedMilestone{}
+	err := x.Table("expected_milestone").Asc("id").Find(&expected)
+	require.NoError(t, err)
+
+	got := []issues.Milestone{}
+	err = x.Table("milestone").Asc("id").Find(&got)
+	require.NoError(t, err)
+
+	for i, e := range expected {
+		got := got[i]
+		assert.Equal(t, e.ID, got.ID)
+		assert.Equal(t, e.NumIssues, got.NumIssues)
+		assert.Equal(t, e.NumClosedIssues, got.NumClosedIssues)
+	}
+}
diff --git a/models/migrations/v1_18/v230.go b/models/migrations/v1_18/v230.go
new file mode 100644
index 0000000..ea5b4d0
--- /dev/null
+++ b/models/migrations/v1_18/v230.go
@@ -0,0 +1,17 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// AddConfidentialColumnToOAuth2ApplicationTable: add ConfidentialClient column, setting existing rows to true
+func AddConfidentialClientColumnToOAuth2ApplicationTable(x *xorm.Engine) error {
+	type oauth2Application struct {
+		ID                 int64
+		ConfidentialClient bool `xorm:"NOT NULL DEFAULT TRUE"`
+	}
+	return x.Sync(new(oauth2Application))
+}
diff --git a/models/migrations/v1_18/v230_test.go b/models/migrations/v1_18/v230_test.go
new file mode 100644
index 0000000..82b3b8f
--- /dev/null
+++ b/models/migrations/v1_18/v230_test.go
@@ -0,0 +1,47 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_18 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddConfidentialClientColumnToOAuth2ApplicationTable(t *testing.T) {
+	// premigration
+	type oauth2Application struct {
+		ID int64
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(oauth2Application))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	if err := AddConfidentialClientColumnToOAuth2ApplicationTable(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	// postmigration
+	type ExpectedOAuth2Application struct {
+		ID                 int64
+		ConfidentialClient bool
+	}
+
+	got := []ExpectedOAuth2Application{}
+	err := x.Table("oauth2_application").Select("id, confidential_client").Find(&got)
+	require.NoError(t, err)
+
+	assert.NotEmpty(t, got)
+	for _, e := range got {
+		assert.True(t, e.ConfidentialClient)
+	}
+}
diff --git a/models/migrations/v1_19/main_test.go b/models/migrations/v1_19/main_test.go
new file mode 100644
index 0000000..18696a7
--- /dev/null
+++ b/models/migrations/v1_19/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_19/v231.go b/models/migrations/v1_19/v231.go
new file mode 100644
index 0000000..79e4613
--- /dev/null
+++ b/models/migrations/v1_19/v231.go
@@ -0,0 +1,18 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexForHookTask(x *xorm.Engine) error {
+	type HookTask struct {
+		ID     int64  `xorm:"pk autoincr"`
+		HookID int64  `xorm:"index"`
+		UUID   string `xorm:"unique"`
+	}
+
+	return x.Sync(new(HookTask))
+}
diff --git a/models/migrations/v1_19/v232.go b/models/migrations/v1_19/v232.go
new file mode 100644
index 0000000..9caf587
--- /dev/null
+++ b/models/migrations/v1_19/v232.go
@@ -0,0 +1,25 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AlterPackageVersionMetadataToLongText(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `package_version` MODIFY COLUMN `metadata_json` LONGTEXT"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_19/v233.go b/models/migrations/v1_19/v233.go
new file mode 100644
index 0000000..ba4cd8e
--- /dev/null
+++ b/models/migrations/v1_19/v233.go
@@ -0,0 +1,181 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func batchProcess[T any](x *xorm.Engine, buf []T, query func(limit, start int) *xorm.Session, process func(*xorm.Session, T) error) error {
+	size := cap(buf)
+	start := 0
+	for {
+		err := query(size, start).Find(&buf)
+		if err != nil {
+			return err
+		}
+		if len(buf) == 0 {
+			return nil
+		}
+
+		err = func() error {
+			sess := x.NewSession()
+			defer sess.Close()
+			if err := sess.Begin(); err != nil {
+				return fmt.Errorf("unable to allow start session. Error: %w", err)
+			}
+			for _, record := range buf {
+				if err := process(sess, record); err != nil {
+					return err
+				}
+			}
+			return sess.Commit()
+		}()
+		if err != nil {
+			return err
+		}
+
+		if len(buf) < size {
+			return nil
+		}
+		start += size
+		buf = buf[:0]
+	}
+}
+
+func AddHeaderAuthorizationEncryptedColWebhook(x *xorm.Engine) error {
+	// Add the column to the table
+	type Webhook struct {
+		ID   int64  `xorm:"pk autoincr"`
+		Type string `xorm:"VARCHAR(16) 'type'"`
+		Meta string `xorm:"TEXT"` // store hook-specific attributes
+
+		// HeaderAuthorizationEncrypted should be accessed using HeaderAuthorization() and SetHeaderAuthorization()
+		HeaderAuthorizationEncrypted string `xorm:"TEXT"`
+	}
+	err := x.Sync(new(Webhook))
+	if err != nil {
+		return err
+	}
+
+	// Migrate the matrix webhooks
+
+	type MatrixMeta struct {
+		HomeserverURL string `json:"homeserver_url"`
+		Room          string `json:"room_id"`
+		MessageType   int    `json:"message_type"`
+	}
+	type MatrixMetaWithAccessToken struct {
+		MatrixMeta
+		AccessToken string `json:"access_token"`
+	}
+
+	err = batchProcess(x,
+		make([]*Webhook, 0, 50),
+		func(limit, start int) *xorm.Session {
+			return x.Where("type=?", "matrix").OrderBy("id").Limit(limit, start)
+		},
+		func(sess *xorm.Session, hook *Webhook) error {
+			// retrieve token from meta
+			var withToken MatrixMetaWithAccessToken
+			err := json.Unmarshal([]byte(hook.Meta), &withToken)
+			if err != nil {
+				return fmt.Errorf("unable to unmarshal matrix meta for webhook[id=%d]: %w", hook.ID, err)
+			}
+			if withToken.AccessToken == "" {
+				return nil
+			}
+
+			// encrypt token
+			authorization := "Bearer " + withToken.AccessToken
+			hook.HeaderAuthorizationEncrypted, err = secret.EncryptSecret(setting.SecretKey, authorization)
+			if err != nil {
+				return fmt.Errorf("unable to encrypt access token for webhook[id=%d]: %w", hook.ID, err)
+			}
+
+			// remove token from meta
+			withoutToken, err := json.Marshal(withToken.MatrixMeta)
+			if err != nil {
+				return fmt.Errorf("unable to marshal matrix meta for webhook[id=%d]: %w", hook.ID, err)
+			}
+			hook.Meta = string(withoutToken)
+
+			// save in database
+			count, err := sess.ID(hook.ID).Cols("meta", "header_authorization_encrypted").Update(hook)
+			if count != 1 || err != nil {
+				return fmt.Errorf("unable to update header_authorization_encrypted for webhook[id=%d]: %d,%w", hook.ID, count, err)
+			}
+			return nil
+		})
+	if err != nil {
+		return err
+	}
+
+	// Remove access_token from HookTask
+
+	type HookTask struct {
+		ID             int64 `xorm:"pk autoincr"`
+		HookID         int64
+		PayloadContent string `xorm:"LONGTEXT"`
+	}
+
+	type MatrixPayloadSafe struct {
+		Body          string               `json:"body"`
+		MsgType       string               `json:"msgtype"`
+		Format        string               `json:"format"`
+		FormattedBody string               `json:"formatted_body"`
+		Commits       []*api.PayloadCommit `json:"io.gitea.commits,omitempty"`
+	}
+	type MatrixPayloadUnsafe struct {
+		MatrixPayloadSafe
+		AccessToken string `json:"access_token"`
+	}
+
+	err = batchProcess(x,
+		make([]*HookTask, 0, 50),
+		func(limit, start int) *xorm.Session {
+			return x.Where(builder.And(
+				builder.In("hook_id", builder.Select("id").From("webhook").Where(builder.Eq{"type": "matrix"})),
+				builder.Like{"payload_content", "access_token"},
+			)).OrderBy("id").Limit(limit, 0) // ignore the provided "start", since other payload were already converted and don't contain 'payload_content' anymore
+		},
+		func(sess *xorm.Session, hookTask *HookTask) error {
+			// retrieve token from payload_content
+			var withToken MatrixPayloadUnsafe
+			err := json.Unmarshal([]byte(hookTask.PayloadContent), &withToken)
+			if err != nil {
+				return fmt.Errorf("unable to unmarshal payload_content for hook_task[id=%d]: %w", hookTask.ID, err)
+			}
+			if withToken.AccessToken == "" {
+				return nil
+			}
+
+			// remove token from payload_content
+			withoutToken, err := json.Marshal(withToken.MatrixPayloadSafe)
+			if err != nil {
+				return fmt.Errorf("unable to marshal payload_content for hook_task[id=%d]: %w", hookTask.ID, err)
+			}
+			hookTask.PayloadContent = string(withoutToken)
+
+			// save in database
+			count, err := sess.ID(hookTask.ID).Cols("payload_content").Update(hookTask)
+			if count != 1 || err != nil {
+				return fmt.Errorf("unable to update payload_content for hook_task[id=%d]: %d,%w", hookTask.ID, count, err)
+			}
+			return nil
+		})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_19/v233_test.go b/models/migrations/v1_19/v233_test.go
new file mode 100644
index 0000000..94e9bc3
--- /dev/null
+++ b/models/migrations/v1_19/v233_test.go
@@ -0,0 +1,86 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddHeaderAuthorizationEncryptedColWebhook(t *testing.T) {
+	// Create Webhook table
+	type Webhook struct {
+		ID   int64                   `xorm:"pk autoincr"`
+		Type webhook_module.HookType `xorm:"VARCHAR(16) 'type'"`
+		Meta string                  `xorm:"TEXT"` // store hook-specific attributes
+
+		// HeaderAuthorizationEncrypted should be accessed using HeaderAuthorization() and SetHeaderAuthorization()
+		HeaderAuthorizationEncrypted string `xorm:"TEXT"`
+	}
+
+	type ExpectedWebhook struct {
+		ID                  int64 `xorm:"pk autoincr"`
+		Meta                string
+		HeaderAuthorization string
+	}
+
+	type HookTask struct {
+		ID             int64 `xorm:"pk autoincr"`
+		HookID         int64
+		PayloadContent string `xorm:"LONGTEXT"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(Webhook), new(ExpectedWebhook), new(HookTask))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	if err := AddHeaderAuthorizationEncryptedColWebhook(x); err != nil {
+		require.NoError(t, err)
+		return
+	}
+
+	expected := []ExpectedWebhook{}
+	err := x.Table("expected_webhook").Asc("id").Find(&expected)
+	require.NoError(t, err)
+
+	got := []Webhook{}
+	err = x.Table("webhook").Select("id, meta, header_authorization_encrypted").Asc("id").Find(&got)
+	require.NoError(t, err)
+
+	for i, e := range expected {
+		assert.Equal(t, e.Meta, got[i].Meta)
+
+		if e.HeaderAuthorization == "" {
+			assert.Equal(t, "", got[i].HeaderAuthorizationEncrypted)
+		} else {
+			cipherhex := got[i].HeaderAuthorizationEncrypted
+			cleartext, err := secret.DecryptSecret(setting.SecretKey, cipherhex)
+			require.NoError(t, err)
+			assert.Equal(t, e.HeaderAuthorization, cleartext)
+		}
+	}
+
+	// ensure that no hook_task has some remaining "access_token"
+	hookTasks := []HookTask{}
+	err = x.Table("hook_task").Select("id, payload_content").Asc("id").Find(&hookTasks)
+	require.NoError(t, err)
+
+	for _, h := range hookTasks {
+		var m map[string]any
+		err := json.Unmarshal([]byte(h.PayloadContent), &m)
+		require.NoError(t, err)
+		assert.Nil(t, m["access_token"])
+	}
+}
diff --git a/models/migrations/v1_19/v234.go b/models/migrations/v1_19/v234.go
new file mode 100644
index 0000000..728a580
--- /dev/null
+++ b/models/migrations/v1_19/v234.go
@@ -0,0 +1,28 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreatePackageCleanupRuleTable(x *xorm.Engine) error {
+	type PackageCleanupRule struct {
+		ID            int64              `xorm:"pk autoincr"`
+		Enabled       bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+		OwnerID       int64              `xorm:"UNIQUE(s) INDEX NOT NULL DEFAULT 0"`
+		Type          string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		KeepCount     int                `xorm:"NOT NULL DEFAULT 0"`
+		KeepPattern   string             `xorm:"NOT NULL DEFAULT ''"`
+		RemoveDays    int                `xorm:"NOT NULL DEFAULT 0"`
+		RemovePattern string             `xorm:"NOT NULL DEFAULT ''"`
+		MatchFullName bool               `xorm:"NOT NULL DEFAULT false"`
+		CreatedUnix   timeutil.TimeStamp `xorm:"created NOT NULL DEFAULT 0"`
+		UpdatedUnix   timeutil.TimeStamp `xorm:"updated NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(PackageCleanupRule))
+}
diff --git a/models/migrations/v1_19/v235.go b/models/migrations/v1_19/v235.go
new file mode 100644
index 0000000..3715de3
--- /dev/null
+++ b/models/migrations/v1_19/v235.go
@@ -0,0 +1,16 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexForAccessToken(x *xorm.Engine) error {
+	type AccessToken struct {
+		TokenLastEight string `xorm:"INDEX token_last_eight"`
+	}
+
+	return x.Sync(new(AccessToken))
+}
diff --git a/models/migrations/v1_19/v236.go b/models/migrations/v1_19/v236.go
new file mode 100644
index 0000000..f172a85
--- /dev/null
+++ b/models/migrations/v1_19/v236.go
@@ -0,0 +1,23 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateSecretsTable(x *xorm.Engine) error {
+	type Secret struct {
+		ID          int64
+		OwnerID     int64              `xorm:"INDEX UNIQUE(owner_repo_name) NOT NULL"`
+		RepoID      int64              `xorm:"INDEX UNIQUE(owner_repo_name) NOT NULL DEFAULT 0"`
+		Name        string             `xorm:"UNIQUE(owner_repo_name) NOT NULL"`
+		Data        string             `xorm:"LONGTEXT"`
+		CreatedUnix timeutil.TimeStamp `xorm:"created NOT NULL"`
+	}
+
+	return x.Sync(new(Secret))
+}
diff --git a/models/migrations/v1_19/v237.go b/models/migrations/v1_19/v237.go
new file mode 100644
index 0000000..b23c765
--- /dev/null
+++ b/models/migrations/v1_19/v237.go
@@ -0,0 +1,15 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func DropForeignReferenceTable(x *xorm.Engine) error {
+	// Drop the table introduced in `v211`, it's considered badly designed and doesn't look like to be used.
+	// See: https://github.com/go-gitea/gitea/issues/21086#issuecomment-1318217453
+	type ForeignReference struct{}
+	return x.DropTables(new(ForeignReference))
+}
diff --git a/models/migrations/v1_19/v238.go b/models/migrations/v1_19/v238.go
new file mode 100644
index 0000000..266e6ce
--- /dev/null
+++ b/models/migrations/v1_19/v238.go
@@ -0,0 +1,27 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+// AddUpdatedUnixToLFSMetaObject adds an updated column to the LFSMetaObject to allow for garbage collection
+func AddUpdatedUnixToLFSMetaObject(x *xorm.Engine) error {
+	// Drop the table introduced in `v211`, it's considered badly designed and doesn't look like to be used.
+	// See: https://github.com/go-gitea/gitea/issues/21086#issuecomment-1318217453
+	// LFSMetaObject stores metadata for LFS tracked files.
+	type LFSMetaObject struct {
+		ID           int64              `xorm:"pk autoincr"`
+		Oid          string             `json:"oid" xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Size         int64              `json:"size" xorm:"NOT NULL"`
+		RepositoryID int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		CreatedUnix  timeutil.TimeStamp `xorm:"created"`
+		UpdatedUnix  timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	return x.Sync(new(LFSMetaObject))
+}
diff --git a/models/migrations/v1_19/v239.go b/models/migrations/v1_19/v239.go
new file mode 100644
index 0000000..10076f2
--- /dev/null
+++ b/models/migrations/v1_19/v239.go
@@ -0,0 +1,22 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddScopeForAccessTokens(x *xorm.Engine) error {
+	type AccessToken struct {
+		Scope string
+	}
+
+	if err := x.Sync(new(AccessToken)); err != nil {
+		return err
+	}
+
+	// all previous tokens have `all` and `sudo` scopes
+	_, err := x.Exec("UPDATE access_token SET scope = ? WHERE scope IS NULL OR scope = ''", "all,sudo")
+	return err
+}
diff --git a/models/migrations/v1_19/v240.go b/models/migrations/v1_19/v240.go
new file mode 100644
index 0000000..4505f86
--- /dev/null
+++ b/models/migrations/v1_19/v240.go
@@ -0,0 +1,176 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddActionsTables(x *xorm.Engine) error {
+	type ActionRunner struct {
+		ID          int64
+		UUID        string `xorm:"CHAR(36) UNIQUE"`
+		Name        string `xorm:"VARCHAR(255)"`
+		OwnerID     int64  `xorm:"index"` // org level runner, 0 means system
+		RepoID      int64  `xorm:"index"` // repo level runner, if orgid also is zero, then it's a global
+		Description string `xorm:"TEXT"`
+		Base        int    // 0 native 1 docker 2 virtual machine
+		RepoRange   string // glob match which repositories could use this runner
+
+		Token     string `xorm:"-"`
+		TokenHash string `xorm:"UNIQUE"` // sha256 of token
+		TokenSalt string
+		// TokenLastEight string `xorm:"token_last_eight"` // it's unnecessary because we don't find runners by token
+
+		LastOnline timeutil.TimeStamp `xorm:"index"`
+		LastActive timeutil.TimeStamp `xorm:"index"`
+
+		// Store OS and Artch.
+		AgentLabels []string
+		// Store custom labes use defined.
+		CustomLabels []string
+
+		Created timeutil.TimeStamp `xorm:"created"`
+		Updated timeutil.TimeStamp `xorm:"updated"`
+		Deleted timeutil.TimeStamp `xorm:"deleted"`
+	}
+
+	type ActionRunnerToken struct {
+		ID       int64
+		Token    string `xorm:"UNIQUE"`
+		OwnerID  int64  `xorm:"index"` // org level runner, 0 means system
+		RepoID   int64  `xorm:"index"` // repo level runner, if orgid also is zero, then it's a global
+		IsActive bool
+
+		Created timeutil.TimeStamp `xorm:"created"`
+		Updated timeutil.TimeStamp `xorm:"updated"`
+		Deleted timeutil.TimeStamp `xorm:"deleted"`
+	}
+
+	type ActionRun struct {
+		ID                int64
+		Title             string
+		RepoID            int64  `xorm:"index unique(repo_index)"`
+		OwnerID           int64  `xorm:"index"`
+		WorkflowID        string `xorm:"index"`                    // the name of workflow file
+		Index             int64  `xorm:"index unique(repo_index)"` // a unique number for each run of a repository
+		TriggerUserID     int64
+		Ref               string
+		CommitSHA         string
+		Event             string
+		IsForkPullRequest bool
+		EventPayload      string `xorm:"LONGTEXT"`
+		Status            int    `xorm:"index"`
+		Started           timeutil.TimeStamp
+		Stopped           timeutil.TimeStamp
+		Created           timeutil.TimeStamp `xorm:"created"`
+		Updated           timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	type ActionRunJob struct {
+		ID                int64
+		RunID             int64  `xorm:"index"`
+		RepoID            int64  `xorm:"index"`
+		OwnerID           int64  `xorm:"index"`
+		CommitSHA         string `xorm:"index"`
+		IsForkPullRequest bool
+		Name              string `xorm:"VARCHAR(255)"`
+		Attempt           int64
+		WorkflowPayload   []byte
+		JobID             string   `xorm:"VARCHAR(255)"` // job id in workflow, not job's id
+		Needs             []string `xorm:"JSON TEXT"`
+		RunsOn            []string `xorm:"JSON TEXT"`
+		TaskID            int64    // the latest task of the job
+		Status            int      `xorm:"index"`
+		Started           timeutil.TimeStamp
+		Stopped           timeutil.TimeStamp
+		Created           timeutil.TimeStamp `xorm:"created"`
+		Updated           timeutil.TimeStamp `xorm:"updated index"`
+	}
+
+	type Repository struct {
+		NumActionRuns       int `xorm:"NOT NULL DEFAULT 0"`
+		NumClosedActionRuns int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	type ActionRunIndex db.ResourceIndex
+
+	type ActionTask struct {
+		ID       int64
+		JobID    int64
+		Attempt  int64
+		RunnerID int64              `xorm:"index"`
+		Status   int                `xorm:"index"`
+		Started  timeutil.TimeStamp `xorm:"index"`
+		Stopped  timeutil.TimeStamp
+
+		RepoID            int64  `xorm:"index"`
+		OwnerID           int64  `xorm:"index"`
+		CommitSHA         string `xorm:"index"`
+		IsForkPullRequest bool
+
+		TokenHash      string `xorm:"UNIQUE"` // sha256 of token
+		TokenSalt      string
+		TokenLastEight string `xorm:"index token_last_eight"`
+
+		LogFilename  string  // file name of log
+		LogInStorage bool    // read log from database or from storage
+		LogLength    int64   // lines count
+		LogSize      int64   // blob size
+		LogIndexes   []int64 `xorm:"LONGBLOB"` // line number to offset
+		LogExpired   bool    // files that are too old will be deleted
+
+		Created timeutil.TimeStamp `xorm:"created"`
+		Updated timeutil.TimeStamp `xorm:"updated index"`
+	}
+
+	type ActionTaskStep struct {
+		ID        int64
+		Name      string `xorm:"VARCHAR(255)"`
+		TaskID    int64  `xorm:"index unique(task_index)"`
+		Index     int64  `xorm:"index unique(task_index)"`
+		RepoID    int64  `xorm:"index"`
+		Status    int    `xorm:"index"`
+		LogIndex  int64
+		LogLength int64
+		Started   timeutil.TimeStamp
+		Stopped   timeutil.TimeStamp
+		Created   timeutil.TimeStamp `xorm:"created"`
+		Updated   timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	type dbfsMeta struct {
+		ID              int64  `xorm:"pk autoincr"`
+		FullPath        string `xorm:"VARCHAR(500) UNIQUE NOT NULL"`
+		BlockSize       int64  `xorm:"BIGINT NOT NULL"`
+		FileSize        int64  `xorm:"BIGINT NOT NULL"`
+		CreateTimestamp int64  `xorm:"BIGINT NOT NULL"`
+		ModifyTimestamp int64  `xorm:"BIGINT NOT NULL"`
+	}
+
+	type dbfsData struct {
+		ID         int64  `xorm:"pk autoincr"`
+		Revision   int64  `xorm:"BIGINT NOT NULL"`
+		MetaID     int64  `xorm:"BIGINT index(meta_offset) NOT NULL"`
+		BlobOffset int64  `xorm:"BIGINT index(meta_offset) NOT NULL"`
+		BlobSize   int64  `xorm:"BIGINT NOT NULL"`
+		BlobData   []byte `xorm:"BLOB NOT NULL"`
+	}
+
+	return x.Sync(
+		new(ActionRunner),
+		new(ActionRunnerToken),
+		new(ActionRun),
+		new(ActionRunJob),
+		new(Repository),
+		new(ActionRunIndex),
+		new(ActionTask),
+		new(ActionTaskStep),
+		new(dbfsMeta),
+		new(dbfsData),
+	)
+}
diff --git a/models/migrations/v1_19/v241.go b/models/migrations/v1_19/v241.go
new file mode 100644
index 0000000..a617d6f
--- /dev/null
+++ b/models/migrations/v1_19/v241.go
@@ -0,0 +1,17 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// AddCardTypeToProjectTable: add CardType column, setting existing rows to CardTypeTextOnly
+func AddCardTypeToProjectTable(x *xorm.Engine) error {
+	type Project struct {
+		CardType int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(Project))
+}
diff --git a/models/migrations/v1_19/v242.go b/models/migrations/v1_19/v242.go
new file mode 100644
index 0000000..4470835
--- /dev/null
+++ b/models/migrations/v1_19/v242.go
@@ -0,0 +1,26 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+// AlterPublicGPGKeyImportContentFieldToMediumText: set GPGKeyImport Content field to MEDIUMTEXT
+func AlterPublicGPGKeyImportContentFieldToMediumText(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		if _, err := sess.Exec("ALTER TABLE `gpg_key_import` CHANGE `content` `content` MEDIUMTEXT"); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_19/v243.go b/models/migrations/v1_19/v243.go
new file mode 100644
index 0000000..55bbfaf
--- /dev/null
+++ b/models/migrations/v1_19/v243.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_19 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddExclusiveLabel(x *xorm.Engine) error {
+	type Label struct {
+		Exclusive bool
+	}
+
+	return x.Sync(new(Label))
+}
diff --git a/models/migrations/v1_20/main_test.go b/models/migrations/v1_20/main_test.go
new file mode 100644
index 0000000..e8d95b0
--- /dev/null
+++ b/models/migrations/v1_20/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_20/v244.go b/models/migrations/v1_20/v244.go
new file mode 100644
index 0000000..977566a
--- /dev/null
+++ b/models/migrations/v1_20/v244.go
@@ -0,0 +1,22 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddNeedApprovalToActionRun(x *xorm.Engine) error {
+	/*
+		New index: TriggerUserID
+		New fields: NeedApproval, ApprovedBy
+	*/
+	type ActionRun struct {
+		TriggerUserID int64 `xorm:"index"`
+		NeedApproval  bool  // may need approval if it's a fork pull request
+		ApprovedBy    int64 `xorm:"index"` // who approved
+	}
+
+	return x.Sync(new(ActionRun))
+}
diff --git a/models/migrations/v1_20/v245.go b/models/migrations/v1_20/v245.go
new file mode 100644
index 0000000..b0d4c21
--- /dev/null
+++ b/models/migrations/v1_20/v245.go
@@ -0,0 +1,69 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func RenameWebhookOrgToOwner(x *xorm.Engine) error {
+	type Webhook struct {
+		OrgID int64 `xorm:"INDEX"`
+	}
+
+	// This migration maybe rerun so that we should check if it has been run
+	ownerExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webhook", "owner_id")
+	if err != nil {
+		return err
+	}
+
+	if ownerExist {
+		orgExist, err := x.Dialect().IsColumnExist(x.DB(), context.Background(), "webhook", "org_id")
+		if err != nil {
+			return err
+		}
+		if !orgExist {
+			return nil
+		}
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(Webhook)); err != nil {
+		return err
+	}
+
+	if ownerExist {
+		if err := base.DropTableColumns(sess, "webhook", "owner_id"); err != nil {
+			return err
+		}
+	}
+
+	if setting.Database.Type.IsMySQL() {
+		inferredTable, err := x.TableInfo(new(Webhook))
+		if err != nil {
+			return err
+		}
+		sqlType := x.Dialect().SQLType(inferredTable.GetColumn("org_id"))
+		if _, err := sess.Exec(fmt.Sprintf("ALTER TABLE `webhook` CHANGE org_id owner_id %s", sqlType)); err != nil {
+			return err
+		}
+	} else {
+		if _, err := sess.Exec("ALTER TABLE `webhook` RENAME COLUMN org_id TO owner_id"); err != nil {
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v246.go b/models/migrations/v1_20/v246.go
new file mode 100644
index 0000000..e6340ef
--- /dev/null
+++ b/models/migrations/v1_20/v246.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddNewColumnForProject(x *xorm.Engine) error {
+	type Project struct {
+		OwnerID int64 `xorm:"INDEX"`
+	}
+
+	return x.Sync(new(Project))
+}
diff --git a/models/migrations/v1_20/v247.go b/models/migrations/v1_20/v247.go
new file mode 100644
index 0000000..59fc5c4
--- /dev/null
+++ b/models/migrations/v1_20/v247.go
@@ -0,0 +1,50 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+// FixIncorrectProjectType: set individual project's type from 3(TypeOrganization) to 1(TypeIndividual)
+func FixIncorrectProjectType(x *xorm.Engine) error {
+	type User struct {
+		ID   int64 `xorm:"pk autoincr"`
+		Type int
+	}
+
+	const (
+		UserTypeIndividual int = 0
+
+		TypeIndividual   uint8 = 1
+		TypeOrganization uint8 = 3
+	)
+
+	type Project struct {
+		OwnerID int64 `xorm:"INDEX"`
+		Type    uint8
+		Owner   *User `xorm:"extends"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	count, err := sess.Table("project").
+		Where("type = ? AND owner_id IN (SELECT id FROM `user` WHERE type = ?)", TypeOrganization, UserTypeIndividual).
+		Update(&Project{
+			Type: TypeIndividual,
+		})
+	if err != nil {
+		return err
+	}
+	log.Debug("Updated %d projects to belong to a user instead of an organization", count)
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v248.go b/models/migrations/v1_20/v248.go
new file mode 100644
index 0000000..4055521
--- /dev/null
+++ b/models/migrations/v1_20/v248.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import "xorm.io/xorm"
+
+func AddVersionToActionRunner(x *xorm.Engine) error {
+	type ActionRunner struct {
+		Version string `xorm:"VARCHAR(64)"` // the version of act_runner
+	}
+
+	return x.Sync(new(ActionRunner))
+}
diff --git a/models/migrations/v1_20/v249.go b/models/migrations/v1_20/v249.go
new file mode 100644
index 0000000..02951a7
--- /dev/null
+++ b/models/migrations/v1_20/v249.go
@@ -0,0 +1,45 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+type Action struct {
+	UserID      int64 // Receiver user id.
+	ActUserID   int64 // Action user id.
+	RepoID      int64
+	IsDeleted   bool               `xorm:"NOT NULL DEFAULT false"`
+	IsPrivate   bool               `xorm:"NOT NULL DEFAULT false"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+// TableName sets the name of this table
+func (a *Action) TableName() string {
+	return "action"
+}
+
+// TableIndices implements xorm's TableIndices interface
+func (a *Action) TableIndices() []*schemas.Index {
+	repoIndex := schemas.NewIndex("r_u_d", schemas.IndexType)
+	repoIndex.AddColumn("repo_id", "user_id", "is_deleted")
+
+	actUserIndex := schemas.NewIndex("au_r_c_u_d", schemas.IndexType)
+	actUserIndex.AddColumn("act_user_id", "repo_id", "created_unix", "user_id", "is_deleted")
+
+	cudIndex := schemas.NewIndex("c_u_d", schemas.IndexType)
+	cudIndex.AddColumn("created_unix", "user_id", "is_deleted")
+
+	indices := []*schemas.Index{actUserIndex, repoIndex, cudIndex}
+
+	return indices
+}
+
+func ImproveActionTableIndices(x *xorm.Engine) error {
+	return x.Sync(new(Action))
+}
diff --git a/models/migrations/v1_20/v250.go b/models/migrations/v1_20/v250.go
new file mode 100644
index 0000000..86388ef
--- /dev/null
+++ b/models/migrations/v1_20/v250.go
@@ -0,0 +1,135 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"strings"
+
+	"code.gitea.io/gitea/modules/json"
+
+	"xorm.io/xorm"
+)
+
+func ChangeContainerMetadataMultiArch(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	type PackageVersion struct {
+		ID           int64  `xorm:"pk autoincr"`
+		MetadataJSON string `xorm:"metadata_json"`
+	}
+
+	type PackageBlob struct{}
+
+	// Get all relevant packages (manifest list images have a container.manifest.reference property)
+
+	var pvs []*PackageVersion
+	err := sess.
+		Table("package_version").
+		Select("id, metadata_json").
+		Where("id IN (SELECT DISTINCT ref_id FROM package_property WHERE ref_type = 0 AND name = 'container.manifest.reference')").
+		Find(&pvs)
+	if err != nil {
+		return err
+	}
+
+	type MetadataOld struct {
+		Type             string            `json:"type"`
+		IsTagged         bool              `json:"is_tagged"`
+		Platform         string            `json:"platform,omitempty"`
+		Description      string            `json:"description,omitempty"`
+		Authors          []string          `json:"authors,omitempty"`
+		Licenses         string            `json:"license,omitempty"`
+		ProjectURL       string            `json:"project_url,omitempty"`
+		RepositoryURL    string            `json:"repository_url,omitempty"`
+		DocumentationURL string            `json:"documentation_url,omitempty"`
+		Labels           map[string]string `json:"labels,omitempty"`
+		ImageLayers      []string          `json:"layer_creation,omitempty"`
+		MultiArch        map[string]string `json:"multiarch,omitempty"`
+	}
+
+	type Manifest struct {
+		Platform string `json:"platform"`
+		Digest   string `json:"digest"`
+		Size     int64  `json:"size"`
+	}
+
+	type MetadataNew struct {
+		Type             string            `json:"type"`
+		IsTagged         bool              `json:"is_tagged"`
+		Platform         string            `json:"platform,omitempty"`
+		Description      string            `json:"description,omitempty"`
+		Authors          []string          `json:"authors,omitempty"`
+		Licenses         string            `json:"license,omitempty"`
+		ProjectURL       string            `json:"project_url,omitempty"`
+		RepositoryURL    string            `json:"repository_url,omitempty"`
+		DocumentationURL string            `json:"documentation_url,omitempty"`
+		Labels           map[string]string `json:"labels,omitempty"`
+		ImageLayers      []string          `json:"layer_creation,omitempty"`
+		Manifests        []*Manifest       `json:"manifests,omitempty"`
+	}
+
+	for _, pv := range pvs {
+		var old *MetadataOld
+		if err := json.Unmarshal([]byte(pv.MetadataJSON), &old); err != nil {
+			return err
+		}
+
+		// Calculate the size of every contained manifest
+
+		manifests := make([]*Manifest, 0, len(old.MultiArch))
+		for platform, digest := range old.MultiArch {
+			size, err := sess.
+				Table("package_blob").
+				Join("INNER", "package_file", "package_blob.id = package_file.blob_id").
+				Join("INNER", "package_version pv", "pv.id = package_file.version_id").
+				Join("INNER", "package_version pv2", "pv2.package_id = pv.package_id").
+				Where("pv.lower_version = ? AND pv2.id = ?", strings.ToLower(digest), pv.ID).
+				SumInt(new(PackageBlob), "size")
+			if err != nil {
+				return err
+			}
+
+			manifests = append(manifests, &Manifest{
+				Platform: platform,
+				Digest:   digest,
+				Size:     size,
+			})
+		}
+
+		// Convert to new metadata format
+
+		newMetadata := &MetadataNew{
+			Type:             old.Type,
+			IsTagged:         old.IsTagged,
+			Platform:         old.Platform,
+			Description:      old.Description,
+			Authors:          old.Authors,
+			Licenses:         old.Licenses,
+			ProjectURL:       old.ProjectURL,
+			RepositoryURL:    old.RepositoryURL,
+			DocumentationURL: old.DocumentationURL,
+			Labels:           old.Labels,
+			ImageLayers:      old.ImageLayers,
+			Manifests:        manifests,
+		}
+
+		metadataJSON, err := json.Marshal(newMetadata)
+		if err != nil {
+			return err
+		}
+
+		pv.MetadataJSON = string(metadataJSON)
+
+		if _, err := sess.ID(pv.ID).Update(pv); err != nil {
+			return err
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v251.go b/models/migrations/v1_20/v251.go
new file mode 100644
index 0000000..7743248
--- /dev/null
+++ b/models/migrations/v1_20/v251.go
@@ -0,0 +1,47 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+func FixIncorrectOwnerTeamUnitAccessMode(x *xorm.Engine) error {
+	type UnitType int
+	type AccessMode int
+
+	type TeamUnit struct {
+		ID         int64    `xorm:"pk autoincr"`
+		OrgID      int64    `xorm:"INDEX"`
+		TeamID     int64    `xorm:"UNIQUE(s)"`
+		Type       UnitType `xorm:"UNIQUE(s)"`
+		AccessMode AccessMode
+	}
+
+	const (
+		// AccessModeOwner owner access
+		AccessModeOwner = 4
+	)
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	count, err := sess.Table("team_unit").
+		Where("team_id IN (SELECT id FROM team WHERE authorize = ?)", AccessModeOwner).
+		Update(&TeamUnit{
+			AccessMode: AccessModeOwner,
+		})
+	if err != nil {
+		return err
+	}
+	log.Debug("Updated %d owner team unit access mode to belong to owner instead of none", count)
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v252.go b/models/migrations/v1_20/v252.go
new file mode 100644
index 0000000..ab61cd9
--- /dev/null
+++ b/models/migrations/v1_20/v252.go
@@ -0,0 +1,47 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+func FixIncorrectAdminTeamUnitAccessMode(x *xorm.Engine) error {
+	type UnitType int
+	type AccessMode int
+
+	type TeamUnit struct {
+		ID         int64    `xorm:"pk autoincr"`
+		OrgID      int64    `xorm:"INDEX"`
+		TeamID     int64    `xorm:"UNIQUE(s)"`
+		Type       UnitType `xorm:"UNIQUE(s)"`
+		AccessMode AccessMode
+	}
+
+	const (
+		// AccessModeAdmin admin access
+		AccessModeAdmin = 3
+	)
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	count, err := sess.Table("team_unit").
+		Where("team_id IN (SELECT id FROM team WHERE authorize = ?)", AccessModeAdmin).
+		Update(&TeamUnit{
+			AccessMode: AccessModeAdmin,
+		})
+	if err != nil {
+		return err
+	}
+	log.Debug("Updated %d admin team unit access mode to belong to admin instead of none", count)
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v253.go b/models/migrations/v1_20/v253.go
new file mode 100644
index 0000000..96c494b
--- /dev/null
+++ b/models/migrations/v1_20/v253.go
@@ -0,0 +1,49 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+func FixExternalTrackerAndExternalWikiAccessModeInOwnerAndAdminTeam(x *xorm.Engine) error {
+	type UnitType int
+	type AccessMode int
+
+	type TeamUnit struct {
+		ID         int64    `xorm:"pk autoincr"`
+		Type       UnitType `xorm:"UNIQUE(s)"`
+		AccessMode AccessMode
+	}
+
+	const (
+		// AccessModeRead read access
+		AccessModeRead = 1
+
+		// Unit Type
+		TypeExternalWiki    = 6
+		TypeExternalTracker = 7
+	)
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	count, err := sess.Table("team_unit").
+		Where("type IN (?, ?) AND access_mode > ?", TypeExternalWiki, TypeExternalTracker, AccessModeRead).
+		Update(&TeamUnit{
+			AccessMode: AccessModeRead,
+		})
+	if err != nil {
+		return err
+	}
+	log.Debug("Updated %d ExternalTracker and ExternalWiki access mode to belong to owner and admin", count)
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_20/v254.go b/models/migrations/v1_20/v254.go
new file mode 100644
index 0000000..1e26979
--- /dev/null
+++ b/models/migrations/v1_20/v254.go
@@ -0,0 +1,18 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddActionTaskOutputTable(x *xorm.Engine) error {
+	type ActionTaskOutput struct {
+		ID          int64
+		TaskID      int64  `xorm:"INDEX UNIQUE(task_id_output_key)"`
+		OutputKey   string `xorm:"VARCHAR(255) UNIQUE(task_id_output_key)"`
+		OutputValue string `xorm:"MEDIUMTEXT"`
+	}
+	return x.Sync(new(ActionTaskOutput))
+}
diff --git a/models/migrations/v1_20/v255.go b/models/migrations/v1_20/v255.go
new file mode 100644
index 0000000..14b70f8
--- /dev/null
+++ b/models/migrations/v1_20/v255.go
@@ -0,0 +1,23 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddArchivedUnixToRepository(x *xorm.Engine) error {
+	type Repository struct {
+		ArchivedUnix timeutil.TimeStamp `xorm:"DEFAULT 0"`
+	}
+
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+
+	_, err := x.Exec("UPDATE repository SET archived_unix = updated_unix WHERE is_archived = ? AND archived_unix = 0", true)
+	return err
+}
diff --git a/models/migrations/v1_20/v256.go b/models/migrations/v1_20/v256.go
new file mode 100644
index 0000000..822153b
--- /dev/null
+++ b/models/migrations/v1_20/v256.go
@@ -0,0 +1,23 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIsInternalColumnToPackage(x *xorm.Engine) error {
+	type Package struct {
+		ID               int64  `xorm:"pk autoincr"`
+		OwnerID          int64  `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		RepoID           int64  `xorm:"INDEX"`
+		Type             string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		Name             string `xorm:"NOT NULL"`
+		LowerName        string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+		SemverCompatible bool   `xorm:"NOT NULL DEFAULT false"`
+		IsInternal       bool   `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(Package))
+}
diff --git a/models/migrations/v1_20/v257.go b/models/migrations/v1_20/v257.go
new file mode 100644
index 0000000..6c6ca4c
--- /dev/null
+++ b/models/migrations/v1_20/v257.go
@@ -0,0 +1,33 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateActionArtifactTable(x *xorm.Engine) error {
+	// ActionArtifact is a file that is stored in the artifact storage.
+	type ActionArtifact struct {
+		ID                 int64 `xorm:"pk autoincr"`
+		RunID              int64 `xorm:"index UNIQUE(runid_name)"` // The run id of the artifact
+		RunnerID           int64
+		RepoID             int64 `xorm:"index"`
+		OwnerID            int64
+		CommitSHA          string
+		StoragePath        string             // The path to the artifact in the storage
+		FileSize           int64              // The size of the artifact in bytes
+		FileCompressedSize int64              // The size of the artifact in bytes after gzip compression
+		ContentEncoding    string             // The content encoding of the artifact
+		ArtifactPath       string             // The path to the artifact when runner uploads it
+		ArtifactName       string             `xorm:"UNIQUE(runid_name)"` // The name of the artifact when runner uploads it
+		Status             int64              `xorm:"index"`              // The status of the artifact
+		CreatedUnix        timeutil.TimeStamp `xorm:"created"`
+		UpdatedUnix        timeutil.TimeStamp `xorm:"updated index"`
+	}
+
+	return x.Sync(new(ActionArtifact))
+}
diff --git a/models/migrations/v1_20/v258.go b/models/migrations/v1_20/v258.go
new file mode 100644
index 0000000..47174ce
--- /dev/null
+++ b/models/migrations/v1_20/v258.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddPinOrderToIssue(x *xorm.Engine) error {
+	type Issue struct {
+		PinOrder int `xorm:"DEFAULT 0"`
+	}
+
+	return x.Sync(new(Issue))
+}
diff --git a/models/migrations/v1_20/v259.go b/models/migrations/v1_20/v259.go
new file mode 100644
index 0000000..5b8ced4
--- /dev/null
+++ b/models/migrations/v1_20/v259.go
@@ -0,0 +1,360 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/xorm"
+)
+
+// unknownAccessTokenScope represents the scope for an access token that isn't
+// known be an old token or a new token.
+type unknownAccessTokenScope string
+
+// AccessTokenScope represents the scope for an access token.
+type AccessTokenScope string
+
+// for all categories, write implies read
+const (
+	AccessTokenScopeAll        AccessTokenScope = "all"
+	AccessTokenScopePublicOnly AccessTokenScope = "public-only" // limited to public orgs/repos
+
+	AccessTokenScopeReadActivityPub  AccessTokenScope = "read:activitypub"
+	AccessTokenScopeWriteActivityPub AccessTokenScope = "write:activitypub"
+
+	AccessTokenScopeReadAdmin  AccessTokenScope = "read:admin"
+	AccessTokenScopeWriteAdmin AccessTokenScope = "write:admin"
+
+	AccessTokenScopeReadMisc  AccessTokenScope = "read:misc"
+	AccessTokenScopeWriteMisc AccessTokenScope = "write:misc"
+
+	AccessTokenScopeReadNotification  AccessTokenScope = "read:notification"
+	AccessTokenScopeWriteNotification AccessTokenScope = "write:notification"
+
+	AccessTokenScopeReadOrganization  AccessTokenScope = "read:organization"
+	AccessTokenScopeWriteOrganization AccessTokenScope = "write:organization"
+
+	AccessTokenScopeReadPackage  AccessTokenScope = "read:package"
+	AccessTokenScopeWritePackage AccessTokenScope = "write:package"
+
+	AccessTokenScopeReadIssue  AccessTokenScope = "read:issue"
+	AccessTokenScopeWriteIssue AccessTokenScope = "write:issue"
+
+	AccessTokenScopeReadRepository  AccessTokenScope = "read:repository"
+	AccessTokenScopeWriteRepository AccessTokenScope = "write:repository"
+
+	AccessTokenScopeReadUser  AccessTokenScope = "read:user"
+	AccessTokenScopeWriteUser AccessTokenScope = "write:user"
+)
+
+// accessTokenScopeBitmap represents a bitmap of access token scopes.
+type accessTokenScopeBitmap uint64
+
+// Bitmap of each scope, including the child scopes.
+const (
+	// AccessTokenScopeAllBits is the bitmap of all access token scopes
+	accessTokenScopeAllBits accessTokenScopeBitmap = accessTokenScopeWriteActivityPubBits |
+		accessTokenScopeWriteAdminBits | accessTokenScopeWriteMiscBits | accessTokenScopeWriteNotificationBits |
+		accessTokenScopeWriteOrganizationBits | accessTokenScopeWritePackageBits | accessTokenScopeWriteIssueBits |
+		accessTokenScopeWriteRepositoryBits | accessTokenScopeWriteUserBits
+
+	accessTokenScopePublicOnlyBits accessTokenScopeBitmap = 1 << iota
+
+	accessTokenScopeReadActivityPubBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteActivityPubBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadActivityPubBits
+
+	accessTokenScopeReadAdminBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteAdminBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadAdminBits
+
+	accessTokenScopeReadMiscBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteMiscBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadMiscBits
+
+	accessTokenScopeReadNotificationBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteNotificationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadNotificationBits
+
+	accessTokenScopeReadOrganizationBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteOrganizationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadOrganizationBits
+
+	accessTokenScopeReadPackageBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWritePackageBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadPackageBits
+
+	accessTokenScopeReadIssueBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteIssueBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadIssueBits
+
+	accessTokenScopeReadRepositoryBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteRepositoryBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadRepositoryBits
+
+	accessTokenScopeReadUserBits  accessTokenScopeBitmap = 1 << iota
+	accessTokenScopeWriteUserBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadUserBits
+
+	// The current implementation only supports up to 64 token scopes.
+	// If we need to support > 64 scopes,
+	// refactoring the whole implementation in this file (and only this file) is needed.
+)
+
+// allAccessTokenScopes contains all access token scopes.
+// The order is important: parent scope must precede child scopes.
+var allAccessTokenScopes = []AccessTokenScope{
+	AccessTokenScopePublicOnly,
+	AccessTokenScopeWriteActivityPub, AccessTokenScopeReadActivityPub,
+	AccessTokenScopeWriteAdmin, AccessTokenScopeReadAdmin,
+	AccessTokenScopeWriteMisc, AccessTokenScopeReadMisc,
+	AccessTokenScopeWriteNotification, AccessTokenScopeReadNotification,
+	AccessTokenScopeWriteOrganization, AccessTokenScopeReadOrganization,
+	AccessTokenScopeWritePackage, AccessTokenScopeReadPackage,
+	AccessTokenScopeWriteIssue, AccessTokenScopeReadIssue,
+	AccessTokenScopeWriteRepository, AccessTokenScopeReadRepository,
+	AccessTokenScopeWriteUser, AccessTokenScopeReadUser,
+}
+
+// allAccessTokenScopeBits contains all access token scopes.
+var allAccessTokenScopeBits = map[AccessTokenScope]accessTokenScopeBitmap{
+	AccessTokenScopeAll:               accessTokenScopeAllBits,
+	AccessTokenScopePublicOnly:        accessTokenScopePublicOnlyBits,
+	AccessTokenScopeReadActivityPub:   accessTokenScopeReadActivityPubBits,
+	AccessTokenScopeWriteActivityPub:  accessTokenScopeWriteActivityPubBits,
+	AccessTokenScopeReadAdmin:         accessTokenScopeReadAdminBits,
+	AccessTokenScopeWriteAdmin:        accessTokenScopeWriteAdminBits,
+	AccessTokenScopeReadMisc:          accessTokenScopeReadMiscBits,
+	AccessTokenScopeWriteMisc:         accessTokenScopeWriteMiscBits,
+	AccessTokenScopeReadNotification:  accessTokenScopeReadNotificationBits,
+	AccessTokenScopeWriteNotification: accessTokenScopeWriteNotificationBits,
+	AccessTokenScopeReadOrganization:  accessTokenScopeReadOrganizationBits,
+	AccessTokenScopeWriteOrganization: accessTokenScopeWriteOrganizationBits,
+	AccessTokenScopeReadPackage:       accessTokenScopeReadPackageBits,
+	AccessTokenScopeWritePackage:      accessTokenScopeWritePackageBits,
+	AccessTokenScopeReadIssue:         accessTokenScopeReadIssueBits,
+	AccessTokenScopeWriteIssue:        accessTokenScopeWriteIssueBits,
+	AccessTokenScopeReadRepository:    accessTokenScopeReadRepositoryBits,
+	AccessTokenScopeWriteRepository:   accessTokenScopeWriteRepositoryBits,
+	AccessTokenScopeReadUser:          accessTokenScopeReadUserBits,
+	AccessTokenScopeWriteUser:         accessTokenScopeWriteUserBits,
+}
+
+// hasScope returns true if the string has the given scope
+func (bitmap accessTokenScopeBitmap) hasScope(scope AccessTokenScope) (bool, error) {
+	expectedBits, ok := allAccessTokenScopeBits[scope]
+	if !ok {
+		return false, fmt.Errorf("invalid access token scope: %s", scope)
+	}
+
+	return bitmap&expectedBits == expectedBits, nil
+}
+
+// toScope returns a normalized scope string without any duplicates.
+func (bitmap accessTokenScopeBitmap) toScope(unknownScopes *[]unknownAccessTokenScope) AccessTokenScope {
+	var scopes []string
+
+	// Preserve unknown scopes, and put them at the beginning so that it's clear
+	// when debugging.
+	if unknownScopes != nil {
+		for _, unknownScope := range *unknownScopes {
+			scopes = append(scopes, string(unknownScope))
+		}
+	}
+
+	// iterate over all scopes, and reconstruct the bitmap
+	// if the reconstructed bitmap doesn't change, then the scope is already included
+	var reconstruct accessTokenScopeBitmap
+
+	for _, singleScope := range allAccessTokenScopes {
+		// no need for error checking here, since we know the scope is valid
+		if ok, _ := bitmap.hasScope(singleScope); ok {
+			current := reconstruct | allAccessTokenScopeBits[singleScope]
+			if current == reconstruct {
+				continue
+			}
+
+			reconstruct = current
+			scopes = append(scopes, string(singleScope))
+		}
+	}
+
+	scope := AccessTokenScope(strings.Join(scopes, ","))
+	scope = AccessTokenScope(strings.ReplaceAll(
+		string(scope),
+		"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user",
+		"all",
+	))
+	return scope
+}
+
+// parse the scope string into a bitmap, thus removing possible duplicates.
+func (s AccessTokenScope) parse() (accessTokenScopeBitmap, *[]unknownAccessTokenScope) {
+	var bitmap accessTokenScopeBitmap
+	var unknownScopes []unknownAccessTokenScope
+
+	// The following is the more performant equivalent of 'for _, v := range strings.Split(remainingScope, ",")' as this is hot code
+	remainingScopes := string(s)
+	for len(remainingScopes) > 0 {
+		i := strings.IndexByte(remainingScopes, ',')
+		var v string
+		if i < 0 {
+			v = remainingScopes
+			remainingScopes = ""
+		} else if i+1 >= len(remainingScopes) {
+			v = remainingScopes[:i]
+			remainingScopes = ""
+		} else {
+			v = remainingScopes[:i]
+			remainingScopes = remainingScopes[i+1:]
+		}
+		singleScope := AccessTokenScope(v)
+		if singleScope == "" {
+			continue
+		}
+		if singleScope == AccessTokenScopeAll {
+			bitmap |= accessTokenScopeAllBits
+			continue
+		}
+
+		bits, ok := allAccessTokenScopeBits[singleScope]
+		if !ok {
+			unknownScopes = append(unknownScopes, unknownAccessTokenScope(string(singleScope)))
+		}
+		bitmap |= bits
+	}
+
+	return bitmap, &unknownScopes
+}
+
+// NormalizePreservingUnknown returns a normalized scope string without any
+// duplicates.  Unknown scopes are included.
+func (s AccessTokenScope) NormalizePreservingUnknown() AccessTokenScope {
+	bitmap, unknownScopes := s.parse()
+
+	return bitmap.toScope(unknownScopes)
+}
+
+// OldAccessTokenScope represents the scope for an access token.
+type OldAccessTokenScope string
+
+const (
+	OldAccessTokenScopeAll OldAccessTokenScope = "all"
+
+	OldAccessTokenScopeRepo       OldAccessTokenScope = "repo"
+	OldAccessTokenScopeRepoStatus OldAccessTokenScope = "repo:status"
+	OldAccessTokenScopePublicRepo OldAccessTokenScope = "public_repo"
+
+	OldAccessTokenScopeAdminOrg OldAccessTokenScope = "admin:org"
+	OldAccessTokenScopeWriteOrg OldAccessTokenScope = "write:org"
+	OldAccessTokenScopeReadOrg  OldAccessTokenScope = "read:org"
+
+	OldAccessTokenScopeAdminPublicKey OldAccessTokenScope = "admin:public_key"
+	OldAccessTokenScopeWritePublicKey OldAccessTokenScope = "write:public_key"
+	OldAccessTokenScopeReadPublicKey  OldAccessTokenScope = "read:public_key"
+
+	OldAccessTokenScopeAdminRepoHook OldAccessTokenScope = "admin:repo_hook"
+	OldAccessTokenScopeWriteRepoHook OldAccessTokenScope = "write:repo_hook"
+	OldAccessTokenScopeReadRepoHook  OldAccessTokenScope = "read:repo_hook"
+
+	OldAccessTokenScopeAdminOrgHook OldAccessTokenScope = "admin:org_hook"
+
+	OldAccessTokenScopeNotification OldAccessTokenScope = "notification"
+
+	OldAccessTokenScopeUser       OldAccessTokenScope = "user"
+	OldAccessTokenScopeReadUser   OldAccessTokenScope = "read:user"
+	OldAccessTokenScopeUserEmail  OldAccessTokenScope = "user:email"
+	OldAccessTokenScopeUserFollow OldAccessTokenScope = "user:follow"
+
+	OldAccessTokenScopeDeleteRepo OldAccessTokenScope = "delete_repo"
+
+	OldAccessTokenScopePackage       OldAccessTokenScope = "package"
+	OldAccessTokenScopeWritePackage  OldAccessTokenScope = "write:package"
+	OldAccessTokenScopeReadPackage   OldAccessTokenScope = "read:package"
+	OldAccessTokenScopeDeletePackage OldAccessTokenScope = "delete:package"
+
+	OldAccessTokenScopeAdminGPGKey OldAccessTokenScope = "admin:gpg_key"
+	OldAccessTokenScopeWriteGPGKey OldAccessTokenScope = "write:gpg_key"
+	OldAccessTokenScopeReadGPGKey  OldAccessTokenScope = "read:gpg_key"
+
+	OldAccessTokenScopeAdminApplication OldAccessTokenScope = "admin:application"
+	OldAccessTokenScopeWriteApplication OldAccessTokenScope = "write:application"
+	OldAccessTokenScopeReadApplication  OldAccessTokenScope = "read:application"
+
+	OldAccessTokenScopeSudo OldAccessTokenScope = "sudo"
+)
+
+var accessTokenScopeMap = map[OldAccessTokenScope][]AccessTokenScope{
+	OldAccessTokenScopeAll:              {AccessTokenScopeAll},
+	OldAccessTokenScopeRepo:             {AccessTokenScopeWriteRepository},
+	OldAccessTokenScopeRepoStatus:       {AccessTokenScopeWriteRepository},
+	OldAccessTokenScopePublicRepo:       {AccessTokenScopePublicOnly, AccessTokenScopeWriteRepository},
+	OldAccessTokenScopeAdminOrg:         {AccessTokenScopeWriteOrganization},
+	OldAccessTokenScopeWriteOrg:         {AccessTokenScopeWriteOrganization},
+	OldAccessTokenScopeReadOrg:          {AccessTokenScopeReadOrganization},
+	OldAccessTokenScopeAdminPublicKey:   {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeWritePublicKey:   {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeReadPublicKey:    {AccessTokenScopeReadUser},
+	OldAccessTokenScopeAdminRepoHook:    {AccessTokenScopeWriteRepository},
+	OldAccessTokenScopeWriteRepoHook:    {AccessTokenScopeWriteRepository},
+	OldAccessTokenScopeReadRepoHook:     {AccessTokenScopeReadRepository},
+	OldAccessTokenScopeAdminOrgHook:     {AccessTokenScopeWriteOrganization},
+	OldAccessTokenScopeNotification:     {AccessTokenScopeWriteNotification},
+	OldAccessTokenScopeUser:             {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeReadUser:         {AccessTokenScopeReadUser},
+	OldAccessTokenScopeUserEmail:        {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeUserFollow:       {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeDeleteRepo:       {AccessTokenScopeWriteRepository},
+	OldAccessTokenScopePackage:          {AccessTokenScopeWritePackage},
+	OldAccessTokenScopeWritePackage:     {AccessTokenScopeWritePackage},
+	OldAccessTokenScopeReadPackage:      {AccessTokenScopeReadPackage},
+	OldAccessTokenScopeDeletePackage:    {AccessTokenScopeWritePackage},
+	OldAccessTokenScopeAdminGPGKey:      {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeWriteGPGKey:      {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeReadGPGKey:       {AccessTokenScopeReadUser},
+	OldAccessTokenScopeAdminApplication: {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeWriteApplication: {AccessTokenScopeWriteUser},
+	OldAccessTokenScopeReadApplication:  {AccessTokenScopeReadUser},
+	OldAccessTokenScopeSudo:             {AccessTokenScopeWriteAdmin},
+}
+
+type AccessToken struct {
+	ID    int64 `xorm:"pk autoincr"`
+	Scope string
+}
+
+func ConvertScopedAccessTokens(x *xorm.Engine) error {
+	var tokens []*AccessToken
+
+	if err := x.Find(&tokens); err != nil {
+		return err
+	}
+
+	for _, token := range tokens {
+		var scopes []string
+		allNewScopesMap := make(map[AccessTokenScope]bool)
+		for _, oldScope := range strings.Split(token.Scope, ",") {
+			if newScopes, exists := accessTokenScopeMap[OldAccessTokenScope(oldScope)]; exists {
+				for _, newScope := range newScopes {
+					allNewScopesMap[newScope] = true
+				}
+			} else {
+				log.Debug("access token scope not recognized as old token scope %s; preserving it", oldScope)
+				scopes = append(scopes, oldScope)
+			}
+		}
+
+		for s := range allNewScopesMap {
+			scopes = append(scopes, string(s))
+		}
+		scope := AccessTokenScope(strings.Join(scopes, ","))
+
+		// normalize the scope
+		normScope := scope.NormalizePreservingUnknown()
+
+		token.Scope = string(normScope)
+
+		// update the db entry with the new scope
+		if _, err := x.Cols("scope").ID(token.ID).Update(token); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_20/v259_test.go b/models/migrations/v1_20/v259_test.go
new file mode 100644
index 0000000..ae219ea
--- /dev/null
+++ b/models/migrations/v1_20/v259_test.go
@@ -0,0 +1,111 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_20 //nolint
+
+import (
+	"sort"
+	"strings"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+type testCase struct {
+	Old OldAccessTokenScope
+	New AccessTokenScope
+}
+
+func createOldTokenScope(scopes ...OldAccessTokenScope) OldAccessTokenScope {
+	s := make([]string, 0, len(scopes))
+	for _, os := range scopes {
+		s = append(s, string(os))
+	}
+	return OldAccessTokenScope(strings.Join(s, ","))
+}
+
+func createNewTokenScope(scopes ...AccessTokenScope) AccessTokenScope {
+	s := make([]string, 0, len(scopes))
+	for _, os := range scopes {
+		s = append(s, string(os))
+	}
+	return AccessTokenScope(strings.Join(s, ","))
+}
+
+func Test_ConvertScopedAccessTokens(t *testing.T) {
+	tests := []testCase{
+		{
+			createOldTokenScope(OldAccessTokenScopeRepo, OldAccessTokenScopeUserFollow),
+			createNewTokenScope(AccessTokenScopeWriteRepository, AccessTokenScopeWriteUser),
+		},
+		{
+			createOldTokenScope(OldAccessTokenScopeUser, OldAccessTokenScopeWritePackage, OldAccessTokenScopeSudo),
+			createNewTokenScope(AccessTokenScopeWriteAdmin, AccessTokenScopeWritePackage, AccessTokenScopeWriteUser),
+		},
+		{
+			createOldTokenScope(),
+			createNewTokenScope(),
+		},
+		{
+			createOldTokenScope(OldAccessTokenScopeReadGPGKey, OldAccessTokenScopeReadOrg, OldAccessTokenScopeAll),
+			createNewTokenScope(AccessTokenScopeAll),
+		},
+		{
+			createOldTokenScope(OldAccessTokenScopeReadGPGKey, "invalid"),
+			createNewTokenScope("invalid", AccessTokenScopeReadUser),
+		},
+	}
+
+	// add a test for each individual mapping
+	for oldScope, newScope := range accessTokenScopeMap {
+		tests = append(tests, testCase{
+			oldScope,
+			createNewTokenScope(newScope...),
+		})
+	}
+
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(AccessToken))
+	defer deferable()
+	if x == nil || t.Failed() {
+		t.Skip()
+		return
+	}
+
+	// verify that no fixtures were loaded
+	count, err := x.Count(&AccessToken{})
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), count)
+
+	for _, tc := range tests {
+		_, err = x.Insert(&AccessToken{
+			Scope: string(tc.Old),
+		})
+		require.NoError(t, err)
+	}
+
+	// migrate the scopes
+	err = ConvertScopedAccessTokens(x)
+	require.NoError(t, err)
+
+	// migrate the scopes again (migration should be idempotent)
+	err = ConvertScopedAccessTokens(x)
+	require.NoError(t, err)
+
+	tokens := make([]AccessToken, 0)
+	err = x.Find(&tokens)
+	require.NoError(t, err)
+	assert.Equal(t, len(tests), len(tokens))
+
+	// sort the tokens (insertion order by auto-incrementing primary key)
+	sort.Slice(tokens, func(i, j int) bool {
+		return tokens[i].ID < tokens[j].ID
+	})
+
+	// verify that the converted scopes are equal to the expected test result
+	for idx, newToken := range tokens {
+		assert.Equal(t, string(tests[idx].New), newToken.Scope)
+	}
+}
diff --git a/models/migrations/v1_21/main_test.go b/models/migrations/v1_21/main_test.go
new file mode 100644
index 0000000..0148170
--- /dev/null
+++ b/models/migrations/v1_21/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_21/v260.go b/models/migrations/v1_21/v260.go
new file mode 100644
index 0000000..6ca52c5
--- /dev/null
+++ b/models/migrations/v1_21/v260.go
@@ -0,0 +1,26 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func DropCustomLabelsColumnOfActionRunner(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	// drop "custom_labels" cols
+	if err := base.DropTableColumns(sess, "action_runner", "custom_labels"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v261.go b/models/migrations/v1_21/v261.go
new file mode 100644
index 0000000..4ec1160
--- /dev/null
+++ b/models/migrations/v1_21/v261.go
@@ -0,0 +1,24 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateVariableTable(x *xorm.Engine) error {
+	type ActionVariable struct {
+		ID          int64              `xorm:"pk autoincr"`
+		OwnerID     int64              `xorm:"UNIQUE(owner_repo_name)"`
+		RepoID      int64              `xorm:"INDEX UNIQUE(owner_repo_name)"`
+		Name        string             `xorm:"UNIQUE(owner_repo_name) NOT NULL"`
+		Data        string             `xorm:"LONGTEXT NOT NULL"`
+		CreatedUnix timeutil.TimeStamp `xorm:"created NOT NULL"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	return x.Sync(new(ActionVariable))
+}
diff --git a/models/migrations/v1_21/v262.go b/models/migrations/v1_21/v262.go
new file mode 100644
index 0000000..23e9005
--- /dev/null
+++ b/models/migrations/v1_21/v262.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddTriggerEventToActionRun(x *xorm.Engine) error {
+	type ActionRun struct {
+		TriggerEvent string
+	}
+
+	return x.Sync(new(ActionRun))
+}
diff --git a/models/migrations/v1_21/v263.go b/models/migrations/v1_21/v263.go
new file mode 100644
index 0000000..2c7cbad
--- /dev/null
+++ b/models/migrations/v1_21/v263.go
@@ -0,0 +1,46 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+// AddGitSizeAndLFSSizeToRepositoryTable: add GitSize and LFSSize columns to Repository
+func AddGitSizeAndLFSSizeToRepositoryTable(x *xorm.Engine) error {
+	type Repository struct {
+		GitSize int64 `xorm:"NOT NULL DEFAULT 0"`
+		LFSSize int64 `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(Repository)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	_, err := sess.Exec(`UPDATE repository SET lfs_size=(SELECT SUM(size) FROM lfs_meta_object WHERE lfs_meta_object.repository_id=repository.ID) WHERE EXISTS (SELECT 1 FROM lfs_meta_object WHERE lfs_meta_object.repository_id=repository.ID)`)
+	if err != nil {
+		return err
+	}
+
+	_, err = sess.Exec(`UPDATE repository SET size = 0 WHERE size IS NULL`)
+	if err != nil {
+		return err
+	}
+
+	_, err = sess.Exec(`UPDATE repository SET git_size = size - lfs_size WHERE size > lfs_size`)
+	if err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v264.go b/models/migrations/v1_21/v264.go
new file mode 100644
index 0000000..e81a17a
--- /dev/null
+++ b/models/migrations/v1_21/v264.go
@@ -0,0 +1,93 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddBranchTable(x *xorm.Engine) error {
+	type Branch struct {
+		ID            int64
+		RepoID        int64  `xorm:"UNIQUE(s)"`
+		Name          string `xorm:"UNIQUE(s) NOT NULL"`
+		CommitID      string
+		CommitMessage string `xorm:"TEXT"`
+		PusherID      int64
+		IsDeleted     bool `xorm:"index"`
+		DeletedByID   int64
+		DeletedUnix   timeutil.TimeStamp `xorm:"index"`
+		CommitTime    timeutil.TimeStamp // The commit
+		CreatedUnix   timeutil.TimeStamp `xorm:"created"`
+		UpdatedUnix   timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	if err := x.Sync(new(Branch)); err != nil {
+		return err
+	}
+
+	if exist, err := x.IsTableExist("deleted_branches"); err != nil {
+		return err
+	} else if !exist {
+		return nil
+	}
+
+	type DeletedBranch struct {
+		ID          int64
+		RepoID      int64  `xorm:"index UNIQUE(s)"`
+		Name        string `xorm:"UNIQUE(s) NOT NULL"`
+		Commit      string
+		DeletedByID int64
+		DeletedUnix timeutil.TimeStamp
+	}
+
+	var adminUserID int64
+	has, err := x.Table("user").
+		Select("id").
+		Where("is_admin=?", true).
+		Asc("id"). // Reliably get the admin with the lowest ID.
+		Get(&adminUserID)
+	if err != nil {
+		return err
+	} else if !has {
+		return fmt.Errorf("no admin user found")
+	}
+
+	branches := make([]Branch, 0, 100)
+	if err := db.Iterate(context.Background(), nil, func(ctx context.Context, deletedBranch *DeletedBranch) error {
+		branches = append(branches, Branch{
+			RepoID:      deletedBranch.RepoID,
+			Name:        deletedBranch.Name,
+			CommitID:    deletedBranch.Commit,
+			PusherID:    adminUserID,
+			IsDeleted:   true,
+			DeletedByID: deletedBranch.DeletedByID,
+			DeletedUnix: deletedBranch.DeletedUnix,
+		})
+		if len(branches) >= 100 {
+			_, err := x.Insert(&branches)
+			if err != nil {
+				return err
+			}
+			branches = branches[:0]
+		}
+		return nil
+	}); err != nil {
+		return err
+	}
+
+	if len(branches) > 0 {
+		if _, err := x.Insert(&branches); err != nil {
+			return err
+		}
+	}
+
+	return x.DropTables(new(DeletedBranch))
+}
diff --git a/models/migrations/v1_21/v265.go b/models/migrations/v1_21/v265.go
new file mode 100644
index 0000000..800eb95
--- /dev/null
+++ b/models/migrations/v1_21/v265.go
@@ -0,0 +1,19 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AlterActionArtifactTable(x *xorm.Engine) error {
+	// ActionArtifact is a file that is stored in the artifact storage.
+	type ActionArtifact struct {
+		RunID        int64  `xorm:"index unique(runid_name_path)"` // The run id of the artifact
+		ArtifactPath string `xorm:"index unique(runid_name_path)"` // The path to the artifact when runner uploads it
+		ArtifactName string `xorm:"index unique(runid_name_path)"` // The name of the artifact when
+	}
+
+	return x.Sync(new(ActionArtifact))
+}
diff --git a/models/migrations/v1_21/v266.go b/models/migrations/v1_21/v266.go
new file mode 100644
index 0000000..79a5f5e
--- /dev/null
+++ b/models/migrations/v1_21/v266.go
@@ -0,0 +1,23 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func ReduceCommitStatus(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if _, err := sess.Exec(`UPDATE commit_status SET state='pending' WHERE state='running'`); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v267.go b/models/migrations/v1_21/v267.go
new file mode 100644
index 0000000..bc0e954
--- /dev/null
+++ b/models/migrations/v1_21/v267.go
@@ -0,0 +1,23 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateActionTasksVersionTable(x *xorm.Engine) error {
+	type ActionTasksVersion struct {
+		ID          int64 `xorm:"pk autoincr"`
+		OwnerID     int64 `xorm:"UNIQUE(owner_repo)"`
+		RepoID      int64 `xorm:"INDEX UNIQUE(owner_repo)"`
+		Version     int64
+		CreatedUnix timeutil.TimeStamp `xorm:"created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	return x.Sync(new(ActionTasksVersion))
+}
diff --git a/models/migrations/v1_21/v268.go b/models/migrations/v1_21/v268.go
new file mode 100644
index 0000000..332793f
--- /dev/null
+++ b/models/migrations/v1_21/v268.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// UpdateActionsRefIndex updates the index of actions ref field
+func UpdateActionsRefIndex(x *xorm.Engine) error {
+	type ActionRun struct {
+		Ref string `xorm:"index"` // the commit/tag/… causing the run
+	}
+	return x.Sync(new(ActionRun))
+}
diff --git a/models/migrations/v1_21/v269.go b/models/migrations/v1_21/v269.go
new file mode 100644
index 0000000..475ec02
--- /dev/null
+++ b/models/migrations/v1_21/v269.go
@@ -0,0 +1,12 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func DropDeletedBranchTable(x *xorm.Engine) error {
+	return x.DropTables("deleted_branch")
+}
diff --git a/models/migrations/v1_21/v270.go b/models/migrations/v1_21/v270.go
new file mode 100644
index 0000000..b9cc84d
--- /dev/null
+++ b/models/migrations/v1_21/v270.go
@@ -0,0 +1,26 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func FixPackagePropertyTypo(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if _, err := sess.Exec(`UPDATE package_property SET name = 'rpm.metadata' WHERE name = 'rpm.metdata'`); err != nil {
+		return err
+	}
+	if _, err := sess.Exec(`UPDATE package_property SET name = 'conda.metadata' WHERE name = 'conda.metdata'`); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v271.go b/models/migrations/v1_21/v271.go
new file mode 100644
index 0000000..098f649
--- /dev/null
+++ b/models/migrations/v1_21/v271.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddArchivedUnixColumInLabelTable(x *xorm.Engine) error {
+	type Label struct {
+		ArchivedUnix timeutil.TimeStamp `xorm:"DEFAULT NULL"`
+	}
+	return x.Sync(new(Label))
+}
diff --git a/models/migrations/v1_21/v272.go b/models/migrations/v1_21/v272.go
new file mode 100644
index 0000000..a729c49
--- /dev/null
+++ b/models/migrations/v1_21/v272.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+import (
+	"xorm.io/xorm"
+)
+
+func AddVersionToActionRunTable(x *xorm.Engine) error {
+	type ActionRun struct {
+		Version int `xorm:"version default 0"`
+	}
+	return x.Sync(new(ActionRun))
+}
diff --git a/models/migrations/v1_21/v273.go b/models/migrations/v1_21/v273.go
new file mode 100644
index 0000000..61c79f4
--- /dev/null
+++ b/models/migrations/v1_21/v273.go
@@ -0,0 +1,45 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddActionScheduleTable(x *xorm.Engine) error {
+	type ActionSchedule struct {
+		ID            int64
+		Title         string
+		Specs         []string
+		RepoID        int64 `xorm:"index"`
+		OwnerID       int64 `xorm:"index"`
+		WorkflowID    string
+		TriggerUserID int64
+		Ref           string
+		CommitSHA     string
+		Event         string
+		EventPayload  string `xorm:"LONGTEXT"`
+		Content       []byte
+		Created       timeutil.TimeStamp `xorm:"created"`
+		Updated       timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	type ActionScheduleSpec struct {
+		ID         int64
+		RepoID     int64 `xorm:"index"`
+		ScheduleID int64 `xorm:"index"`
+		Spec       string
+		Next       timeutil.TimeStamp `xorm:"index"`
+		Prev       timeutil.TimeStamp
+
+		Created timeutil.TimeStamp `xorm:"created"`
+		Updated timeutil.TimeStamp `xorm:"updated"`
+	}
+
+	return x.Sync(
+		new(ActionSchedule),
+		new(ActionScheduleSpec),
+	)
+}
diff --git a/models/migrations/v1_21/v274.go b/models/migrations/v1_21/v274.go
new file mode 100644
index 0000000..df5994f
--- /dev/null
+++ b/models/migrations/v1_21/v274.go
@@ -0,0 +1,36 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+import (
+	"time"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddExpiredUnixColumnInActionArtifactTable(x *xorm.Engine) error {
+	type ActionArtifact struct {
+		ExpiredUnix timeutil.TimeStamp `xorm:"index"` // time when the artifact will be expired
+	}
+	if err := x.Sync(new(ActionArtifact)); err != nil {
+		return err
+	}
+	return updateArtifactsExpiredUnixTo90Days(x)
+}
+
+func updateArtifactsExpiredUnixTo90Days(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	expiredTime := time.Now().AddDate(0, 0, 90).Unix()
+	if _, err := sess.Exec(`UPDATE action_artifact SET expired_unix=? WHERE status='2' AND expired_unix is NULL`, expiredTime); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v275.go b/models/migrations/v1_21/v275.go
new file mode 100644
index 0000000..78804a5
--- /dev/null
+++ b/models/migrations/v1_21/v275.go
@@ -0,0 +1,15 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddScheduleIDForActionRun(x *xorm.Engine) error {
+	type ActionRun struct {
+		ScheduleID int64
+	}
+	return x.Sync(new(ActionRun))
+}
diff --git a/models/migrations/v1_21/v276.go b/models/migrations/v1_21/v276.go
new file mode 100644
index 0000000..67e9501
--- /dev/null
+++ b/models/migrations/v1_21/v276.go
@@ -0,0 +1,156 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AddRemoteAddressToMirrors(x *xorm.Engine) error {
+	type Mirror struct {
+		RemoteAddress string `xorm:"VARCHAR(2048)"`
+	}
+
+	type PushMirror struct {
+		RemoteAddress string `xorm:"VARCHAR(2048)"`
+	}
+
+	if err := x.Sync(new(Mirror), new(PushMirror)); err != nil {
+		return err
+	}
+
+	if err := migratePullMirrors(x); err != nil {
+		return err
+	}
+
+	return migratePushMirrors(x)
+}
+
+func migratePullMirrors(x *xorm.Engine) error {
+	type Mirror struct {
+		ID            int64  `xorm:"pk autoincr"`
+		RepoID        int64  `xorm:"INDEX"`
+		RemoteAddress string `xorm:"VARCHAR(2048)"`
+		RepoOwner     string
+		RepoName      string
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	start := 0
+
+	for {
+		var mirrors []Mirror
+		if err := sess.Select("mirror.id, mirror.repo_id, mirror.remote_address, repository.owner_name as repo_owner, repository.name as repo_name").
+			Join("INNER", "repository", "repository.id = mirror.repo_id").
+			Limit(limit, start).Find(&mirrors); err != nil {
+			return err
+		}
+
+		if len(mirrors) == 0 {
+			break
+		}
+		start += len(mirrors)
+
+		for _, m := range mirrors {
+			remoteAddress, err := repo_model.GetPushMirrorRemoteAddress(m.RepoOwner, m.RepoName, "origin")
+			if err != nil {
+				return err
+			}
+
+			m.RemoteAddress = remoteAddress
+
+			if _, err = sess.ID(m.ID).Cols("remote_address").Update(m); err != nil {
+				return err
+			}
+		}
+
+		if start%1000 == 0 { // avoid a too big transaction
+			if err := sess.Commit(); err != nil {
+				return err
+			}
+			if err := sess.Begin(); err != nil {
+				return err
+			}
+		}
+	}
+
+	return sess.Commit()
+}
+
+func migratePushMirrors(x *xorm.Engine) error {
+	type PushMirror struct {
+		ID            int64 `xorm:"pk autoincr"`
+		RepoID        int64 `xorm:"INDEX"`
+		RemoteName    string
+		RemoteAddress string `xorm:"VARCHAR(2048)"`
+		RepoOwner     string
+		RepoName      string
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	start := 0
+
+	for {
+		var mirrors []PushMirror
+		if err := sess.Select("push_mirror.id, push_mirror.repo_id, push_mirror.remote_name, push_mirror.remote_address, repository.owner_name as repo_owner, repository.name as repo_name").
+			Join("INNER", "repository", "repository.id = push_mirror.repo_id").
+			Limit(limit, start).Find(&mirrors); err != nil {
+			return err
+		}
+
+		if len(mirrors) == 0 {
+			break
+		}
+		start += len(mirrors)
+
+		for _, m := range mirrors {
+			remoteAddress, err := repo_model.GetPushMirrorRemoteAddress(m.RepoOwner, m.RepoName, m.RemoteName)
+			if err != nil {
+				return err
+			}
+
+			m.RemoteAddress = remoteAddress
+
+			if _, err = sess.ID(m.ID).Cols("remote_address").Update(m); err != nil {
+				return err
+			}
+		}
+
+		if start%1000 == 0 { // avoid a too big transaction
+			if err := sess.Commit(); err != nil {
+				return err
+			}
+			if err := sess.Begin(); err != nil {
+				return err
+			}
+		}
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_21/v277.go b/models/migrations/v1_21/v277.go
new file mode 100644
index 0000000..1252916
--- /dev/null
+++ b/models/migrations/v1_21/v277.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexToIssueUserIssueID(x *xorm.Engine) error {
+	type IssueUser struct {
+		IssueID int64 `xorm:"INDEX"`
+	}
+
+	return x.Sync(new(IssueUser))
+}
diff --git a/models/migrations/v1_21/v278.go b/models/migrations/v1_21/v278.go
new file mode 100644
index 0000000..d6a462d
--- /dev/null
+++ b/models/migrations/v1_21/v278.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexToCommentDependentIssueID(x *xorm.Engine) error {
+	type Comment struct {
+		DependentIssueID int64 `xorm:"index"`
+	}
+
+	return x.Sync(new(Comment))
+}
diff --git a/models/migrations/v1_21/v279.go b/models/migrations/v1_21/v279.go
new file mode 100644
index 0000000..2abd1bb
--- /dev/null
+++ b/models/migrations/v1_21/v279.go
@@ -0,0 +1,20 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_21 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexToActionUserID(x *xorm.Engine) error {
+	type Action struct {
+		UserID int64 `xorm:"INDEX"`
+	}
+
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreDropIndices: true,
+		IgnoreConstrains:  true,
+	}, new(Action))
+	return err
+}
diff --git a/models/migrations/v1_22/main_test.go b/models/migrations/v1_22/main_test.go
new file mode 100644
index 0000000..2005789
--- /dev/null
+++ b/models/migrations/v1_22/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_22/v280.go b/models/migrations/v1_22/v280.go
new file mode 100644
index 0000000..a8ee4a3
--- /dev/null
+++ b/models/migrations/v1_22/v280.go
@@ -0,0 +1,29 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func RenameUserThemes(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if _, err := sess.Exec("UPDATE `user` SET `theme` = 'gitea-light' WHERE `theme` = 'gitea'"); err != nil {
+		return err
+	}
+	if _, err := sess.Exec("UPDATE `user` SET `theme` = 'gitea-dark' WHERE `theme` = 'arc-green'"); err != nil {
+		return err
+	}
+	if _, err := sess.Exec("UPDATE `user` SET `theme` = 'gitea-auto' WHERE `theme` = 'auto'"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_22/v281.go b/models/migrations/v1_22/v281.go
new file mode 100644
index 0000000..fc1866a
--- /dev/null
+++ b/models/migrations/v1_22/v281.go
@@ -0,0 +1,21 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func CreateAuthTokenTable(x *xorm.Engine) error {
+	type AuthToken struct {
+		ID          string `xorm:"pk"`
+		TokenHash   string
+		UserID      int64              `xorm:"INDEX"`
+		ExpiresUnix timeutil.TimeStamp `xorm:"INDEX"`
+	}
+
+	return x.Sync(new(AuthToken))
+}
diff --git a/models/migrations/v1_22/v282.go b/models/migrations/v1_22/v282.go
new file mode 100644
index 0000000..baad9e0
--- /dev/null
+++ b/models/migrations/v1_22/v282.go
@@ -0,0 +1,16 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddIndexToPullAutoMergeDoerID(x *xorm.Engine) error {
+	type PullAutoMerge struct {
+		DoerID int64 `xorm:"INDEX NOT NULL"`
+	}
+
+	return x.Sync(&PullAutoMerge{})
+}
diff --git a/models/migrations/v1_22/v283.go b/models/migrations/v1_22/v283.go
new file mode 100644
index 0000000..86946d1
--- /dev/null
+++ b/models/migrations/v1_22/v283.go
@@ -0,0 +1,38 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddCombinedIndexToIssueUser(x *xorm.Engine) error {
+	type OldIssueUser struct {
+		IssueID int64
+		UID     int64
+		Cnt     int64
+	}
+
+	var duplicatedIssueUsers []OldIssueUser
+	if err := x.SQL("select * from (select issue_id, uid, count(1) as cnt from issue_user group by issue_id, uid) a where a.cnt > 1").
+		Find(&duplicatedIssueUsers); err != nil {
+		return err
+	}
+	for _, issueUser := range duplicatedIssueUsers {
+		var ids []int64
+		if err := x.SQL("SELECT id FROM issue_user WHERE issue_id = ? and uid = ? limit ?", issueUser.IssueID, issueUser.UID, issueUser.Cnt-1).Find(&ids); err != nil {
+			return err
+		}
+		if _, err := x.Table("issue_user").In("id", ids).Delete(); err != nil {
+			return err
+		}
+	}
+
+	type IssueUser struct {
+		UID     int64 `xorm:"INDEX unique(uid_to_issue)"` // User ID.
+		IssueID int64 `xorm:"INDEX unique(uid_to_issue)"`
+	}
+
+	return x.Sync(&IssueUser{})
+}
diff --git a/models/migrations/v1_22/v283_test.go b/models/migrations/v1_22/v283_test.go
new file mode 100644
index 0000000..5f6c04a
--- /dev/null
+++ b/models/migrations/v1_22/v283_test.go
@@ -0,0 +1,28 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddCombinedIndexToIssueUser(t *testing.T) {
+	type IssueUser struct { // old struct
+		ID          int64 `xorm:"pk autoincr"`
+		UID         int64 `xorm:"INDEX"` // User ID.
+		IssueID     int64 `xorm:"INDEX"`
+		IsRead      bool
+		IsMentioned bool
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(IssueUser))
+	defer deferable()
+
+	require.NoError(t, AddCombinedIndexToIssueUser(x))
+}
diff --git a/models/migrations/v1_22/v284.go b/models/migrations/v1_22/v284.go
new file mode 100644
index 0000000..2b95078
--- /dev/null
+++ b/models/migrations/v1_22/v284.go
@@ -0,0 +1,18 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+import (
+	"xorm.io/xorm"
+)
+
+func AddIgnoreStaleApprovalsColumnToProtectedBranchTable(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		IgnoreStaleApprovals bool `xorm:"NOT NULL DEFAULT false"`
+	}
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreIndices:    true,
+		IgnoreConstrains: true,
+	}, new(ProtectedBranch))
+	return err
+}
diff --git a/models/migrations/v1_22/v285.go b/models/migrations/v1_22/v285.go
new file mode 100644
index 0000000..a55cc17
--- /dev/null
+++ b/models/migrations/v1_22/v285.go
@@ -0,0 +1,22 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"time"
+
+	"xorm.io/xorm"
+)
+
+func AddPreviousDurationToActionRun(x *xorm.Engine) error {
+	type ActionRun struct {
+		PreviousDuration time.Duration
+	}
+
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreIndices:    true,
+		IgnoreConstrains: true,
+	}, &ActionRun{})
+	return err
+}
diff --git a/models/migrations/v1_22/v286.go b/models/migrations/v1_22/v286.go
new file mode 100644
index 0000000..97ff649
--- /dev/null
+++ b/models/migrations/v1_22/v286.go
@@ -0,0 +1,75 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+package v1_22 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func expandHashReferencesToSha256(x *xorm.Engine) error {
+	alteredTables := [][2]string{
+		{"commit_status", "context_hash"},
+		{"comment", "commit_sha"},
+		{"pull_request", "merge_base"},
+		{"pull_request", "merged_commit_id"},
+		{"review", "commit_id"},
+		{"review_state", "commit_sha"},
+		{"repo_archiver", "commit_id"},
+		{"release", "sha1"},
+		{"repo_indexer_status", "commit_sha"},
+	}
+
+	db := x.NewSession()
+	defer db.Close()
+
+	if err := db.Begin(); err != nil {
+		return err
+	}
+
+	if !setting.Database.Type.IsSQLite3() {
+		for _, alts := range alteredTables {
+			var err error
+			if setting.Database.Type.IsMySQL() {
+				_, err = db.Exec(fmt.Sprintf("ALTER TABLE `%s` MODIFY COLUMN `%s` VARCHAR(64)", alts[0], alts[1]))
+			} else {
+				_, err = db.Exec(fmt.Sprintf("ALTER TABLE `%s` ALTER COLUMN `%s` TYPE VARCHAR(64)", alts[0], alts[1]))
+			}
+			if err != nil {
+				return fmt.Errorf("alter column '%s' of table '%s' failed: %w", alts[1], alts[0], err)
+			}
+		}
+	}
+	log.Debug("Updated database tables to hold SHA256 git hash references")
+
+	return db.Commit()
+}
+
+func addObjectFormatNameToRepository(x *xorm.Engine) error {
+	type Repository struct {
+		ObjectFormatName string `xorm:"VARCHAR(6) NOT NULL DEFAULT 'sha1'"`
+	}
+
+	if _, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreIndices:    true,
+		IgnoreConstrains: true,
+	}, new(Repository)); err != nil {
+		return err
+	}
+
+	// Here to catch weird edge-cases where column constraints above are
+	// not applied by the DB backend
+	_, err := x.Exec("UPDATE `repository` set `object_format_name` = 'sha1' WHERE `object_format_name` = '' or `object_format_name` IS NULL")
+	return err
+}
+
+func AdjustDBForSha256(x *xorm.Engine) error {
+	if err := expandHashReferencesToSha256(x); err != nil {
+		return err
+	}
+	return addObjectFormatNameToRepository(x)
+}
diff --git a/models/migrations/v1_22/v286_test.go b/models/migrations/v1_22/v286_test.go
new file mode 100644
index 0000000..76b00e5
--- /dev/null
+++ b/models/migrations/v1_22/v286_test.go
@@ -0,0 +1,119 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm"
+)
+
+func PrepareOldRepository(t *testing.T) (*xorm.Engine, func()) {
+	type Repository struct { // old struct
+		ID int64 `xorm:"pk autoincr"`
+	}
+
+	type CommitStatus struct {
+		ID          int64
+		ContextHash string `xorm:"char(40) index"`
+	}
+
+	type RepoArchiver struct {
+		ID       int64
+		RepoID   int64  `xorm:"index unique(s)"`
+		Type     int    `xorm:"unique(s)"`
+		CommitID string `xorm:"VARCHAR(40) unique(s)"`
+	}
+
+	type ReviewState struct {
+		ID        int64
+		UserID    int64  `xorm:"NOT NULL UNIQUE(pull_commit_user)"`
+		PullID    int64  `xorm:"NOT NULL INDEX UNIQUE(pull_commit_user) DEFAULT 0"`
+		CommitSHA string `xorm:"NOT NULL VARCHAR(40) UNIQUE(pull_commit_user)"`
+	}
+
+	type Comment struct {
+		ID        int64
+		CommitSHA string
+	}
+
+	type PullRequest struct {
+		ID             int64
+		CommitSHA      string
+		MergeBase      string
+		MergedCommitID string
+	}
+
+	type Release struct {
+		ID   int64
+		Sha1 string
+	}
+
+	type RepoIndexerStatus struct {
+		ID        int64
+		CommitSHA string
+	}
+
+	type Review struct {
+		ID       int64
+		CommitID string
+	}
+
+	// Prepare and load the testing database
+	return migration_tests.PrepareTestEnv(t, 0,
+		new(Repository),
+		new(CommitStatus),
+		new(RepoArchiver),
+		new(ReviewState),
+		new(Review),
+		new(Comment),
+		new(PullRequest),
+		new(Release),
+		new(RepoIndexerStatus),
+	)
+}
+
+func Test_RepositoryFormat(t *testing.T) {
+	x, deferable := PrepareOldRepository(t)
+	defer deferable()
+
+	require.NoError(t, AdjustDBForSha256(x))
+
+	type Repository struct {
+		ID               int64  `xorm:"pk autoincr"`
+		ObjectFormatName string `xorg:"not null default('sha1')"`
+	}
+
+	repo := new(Repository)
+
+	// check we have some records to migrate
+	count, err := x.Count(new(Repository))
+	require.NoError(t, err)
+	assert.EqualValues(t, 4, count)
+
+	repo.ObjectFormatName = "sha256"
+	_, err = x.Insert(repo)
+	require.NoError(t, err)
+	id := repo.ID
+
+	count, err = x.Count(new(Repository))
+	require.NoError(t, err)
+	assert.EqualValues(t, 5, count)
+
+	repo = new(Repository)
+	ok, err := x.ID(2).Get(repo)
+	require.NoError(t, err)
+	assert.True(t, ok)
+	assert.EqualValues(t, "sha1", repo.ObjectFormatName)
+
+	repo = new(Repository)
+	ok, err = x.ID(id).Get(repo)
+	require.NoError(t, err)
+	assert.True(t, ok)
+	assert.EqualValues(t, "sha256", repo.ObjectFormatName)
+}
diff --git a/models/migrations/v1_22/v287.go b/models/migrations/v1_22/v287.go
new file mode 100644
index 0000000..c8b1593
--- /dev/null
+++ b/models/migrations/v1_22/v287.go
@@ -0,0 +1,46 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+type BadgeUnique struct {
+	ID   int64  `xorm:"pk autoincr"`
+	Slug string `xorm:"UNIQUE"`
+}
+
+func (BadgeUnique) TableName() string {
+	return "badge"
+}
+
+func UseSlugInsteadOfIDForBadges(x *xorm.Engine) error {
+	type Badge struct {
+		Slug string
+	}
+
+	err := x.Sync(new(Badge))
+	if err != nil {
+		return err
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	_, err = sess.Exec("UPDATE `badge` SET `slug` = `id` Where `slug` IS NULL")
+	if err != nil {
+		return err
+	}
+
+	err = sess.Sync(new(BadgeUnique))
+	if err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_22/v288.go b/models/migrations/v1_22/v288.go
new file mode 100644
index 0000000..7c93bfc
--- /dev/null
+++ b/models/migrations/v1_22/v288.go
@@ -0,0 +1,26 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+type Blocking struct {
+	ID          int64 `xorm:"pk autoincr"`
+	BlockerID   int64 `xorm:"UNIQUE(block)"`
+	BlockeeID   int64 `xorm:"UNIQUE(block)"`
+	Note        string
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+func (*Blocking) TableName() string {
+	return "user_blocking"
+}
+
+func AddUserBlockingTable(x *xorm.Engine) error {
+	return x.Sync(&Blocking{})
+}
diff --git a/models/migrations/v1_22/v289.go b/models/migrations/v1_22/v289.go
new file mode 100644
index 0000000..b9941aa
--- /dev/null
+++ b/models/migrations/v1_22/v289.go
@@ -0,0 +1,21 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddDefaultWikiBranch(x *xorm.Engine) error {
+	type Repository struct {
+		ID                int64
+		DefaultWikiBranch string
+	}
+	if _, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreIndices:    true,
+		IgnoreConstrains: true,
+	}, &Repository{}); err != nil {
+		return err
+	}
+	_, err := x.Exec("UPDATE `repository` SET default_wiki_branch = 'master' WHERE (default_wiki_branch IS NULL) OR (default_wiki_branch = '')")
+	return err
+}
diff --git a/models/migrations/v1_22/v290.go b/models/migrations/v1_22/v290.go
new file mode 100644
index 0000000..e3c58b0
--- /dev/null
+++ b/models/migrations/v1_22/v290.go
@@ -0,0 +1,46 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"xorm.io/xorm"
+)
+
+// HookTask represents a hook task.
+// exact copy of models/webhook/hooktask.go when this migration was created
+//   - xorm:"-" fields deleted
+type HookTask struct {
+	ID             int64  `xorm:"pk autoincr"`
+	HookID         int64  `xorm:"index"`
+	UUID           string `xorm:"unique"`
+	PayloadContent string `xorm:"LONGTEXT"`
+	EventType      webhook_module.HookEventType
+	IsDelivered    bool
+	Delivered      timeutil.TimeStampNano
+
+	// History info.
+	IsSucceed       bool
+	RequestContent  string `xorm:"LONGTEXT"`
+	ResponseContent string `xorm:"LONGTEXT"`
+
+	// Version number to allow for smooth version upgrades:
+	//  - Version 1: PayloadContent contains the JSON as send to the URL
+	//  - Version 2: PayloadContent contains the original event
+	PayloadVersion int `xorm:"DEFAULT 1"`
+}
+
+func AddPayloadVersionToHookTaskTable(x *xorm.Engine) error {
+	// create missing column
+	if _, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreIndices:    true,
+		IgnoreConstrains: true,
+	}, new(HookTask)); err != nil {
+		return err
+	}
+	_, err := x.Exec("UPDATE hook_task SET payload_version = 1 WHERE payload_version IS NULL")
+	return err
+}
diff --git a/models/migrations/v1_22/v290_test.go b/models/migrations/v1_22/v290_test.go
new file mode 100644
index 0000000..ced200f
--- /dev/null
+++ b/models/migrations/v1_22/v290_test.go
@@ -0,0 +1,59 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"strconv"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/modules/timeutil"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AddPayloadVersionToHookTaskTable(t *testing.T) {
+	type HookTaskMigrated HookTask
+
+	// HookTask represents a hook task, as of before the migration
+	type HookTask struct {
+		ID             int64  `xorm:"pk autoincr"`
+		HookID         int64  `xorm:"index"`
+		UUID           string `xorm:"unique"`
+		PayloadContent string `xorm:"LONGTEXT"`
+		EventType      webhook_module.HookEventType
+		IsDelivered    bool
+		Delivered      timeutil.TimeStampNano
+
+		// History info.
+		IsSucceed       bool
+		RequestContent  string `xorm:"LONGTEXT"`
+		ResponseContent string `xorm:"LONGTEXT"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(HookTask), new(HookTaskMigrated))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	require.NoError(t, AddPayloadVersionToHookTaskTable(x))
+
+	expected := []HookTaskMigrated{}
+	require.NoError(t, x.Table("hook_task_migrated").Asc("id").Find(&expected))
+	assert.Len(t, expected, 2)
+
+	got := []HookTaskMigrated{}
+	require.NoError(t, x.Table("hook_task").Asc("id").Find(&got))
+
+	for i, expected := range expected {
+		expected, got := expected, got[i]
+		t.Run(strconv.FormatInt(expected.ID, 10), func(t *testing.T) {
+			assert.Equal(t, expected.PayloadVersion, got.PayloadVersion)
+		})
+	}
+}
diff --git a/models/migrations/v1_22/v291.go b/models/migrations/v1_22/v291.go
new file mode 100644
index 0000000..74726fa
--- /dev/null
+++ b/models/migrations/v1_22/v291.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddCommentIDIndexofAttachment(x *xorm.Engine) error {
+	type Attachment struct {
+		CommentID int64 `xorm:"INDEX"`
+	}
+
+	_, err := x.SyncWithOptions(xorm.SyncOptions{
+		IgnoreDropIndices: true,
+		IgnoreConstrains:  true,
+	}, &Attachment{})
+	return err
+}
diff --git a/models/migrations/v1_22/v292.go b/models/migrations/v1_22/v292.go
new file mode 100644
index 0000000..beca556
--- /dev/null
+++ b/models/migrations/v1_22/v292.go
@@ -0,0 +1,9 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+// NOTE: noop the original migration has bug which some projects will be skip, so
+// these projects will have no default board.
+// So that this migration will be skipped and go to v293.go
+// This file is a placeholder so that readers can know what happened
diff --git a/models/migrations/v1_22/v293.go b/models/migrations/v1_22/v293.go
new file mode 100644
index 0000000..53cc719
--- /dev/null
+++ b/models/migrations/v1_22/v293.go
@@ -0,0 +1,108 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+// CheckProjectColumnsConsistency ensures there is exactly one default board per project present
+func CheckProjectColumnsConsistency(x *xorm.Engine) error {
+	sess := x.NewSession()
+	defer sess.Close()
+
+	limit := setting.Database.IterateBufferSize
+	if limit <= 0 {
+		limit = 50
+	}
+
+	type Project struct {
+		ID        int64
+		CreatorID int64
+		BoardID   int64
+	}
+
+	type ProjectBoard struct {
+		ID      int64 `xorm:"pk autoincr"`
+		Title   string
+		Default bool   `xorm:"NOT NULL DEFAULT false"` // issues not assigned to a specific board will be assigned to this board
+		Sorting int8   `xorm:"NOT NULL DEFAULT 0"`
+		Color   string `xorm:"VARCHAR(7)"`
+
+		ProjectID int64 `xorm:"INDEX NOT NULL"`
+		CreatorID int64 `xorm:"NOT NULL"`
+
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	for {
+		if err := sess.Begin(); err != nil {
+			return err
+		}
+
+		// all these projects without defaults will be fixed in the same loop, so
+		// we just need to always get projects without defaults until no such project
+		var projects []*Project
+		if err := sess.Select("project.id as id, project.creator_id, project_board.id as board_id").
+			Join("LEFT", "project_board", "project_board.project_id = project.id AND project_board.`default`=?", true).
+			Where("project_board.id is NULL OR project_board.id = 0").
+			Limit(limit).
+			Find(&projects); err != nil {
+			return err
+		}
+
+		for _, p := range projects {
+			if _, err := sess.Insert(ProjectBoard{
+				ProjectID: p.ID,
+				Default:   true,
+				Title:     "Uncategorized",
+				CreatorID: p.CreatorID,
+			}); err != nil {
+				return err
+			}
+		}
+		if err := sess.Commit(); err != nil {
+			return err
+		}
+
+		if len(projects) == 0 {
+			break
+		}
+	}
+	sess.Close()
+
+	return removeDuplicatedBoardDefault(x)
+}
+
+func removeDuplicatedBoardDefault(x *xorm.Engine) error {
+	type ProjectInfo struct {
+		ProjectID  int64
+		DefaultNum int
+	}
+	var projects []ProjectInfo
+	if err := x.Select("project_id, count(*) AS default_num").
+		Table("project_board").
+		Where("`default` = ?", true).
+		GroupBy("project_id").
+		Having("count(*) > 1").
+		Find(&projects); err != nil {
+		return err
+	}
+
+	for _, project := range projects {
+		if _, err := x.Where("project_id=?", project.ProjectID).
+			Table("project_board").
+			Limit(project.DefaultNum - 1).
+			Update(map[string]bool{
+				"`default`": false,
+			}); err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/models/migrations/v1_22/v293_test.go b/models/migrations/v1_22/v293_test.go
new file mode 100644
index 0000000..85bb464
--- /dev/null
+++ b/models/migrations/v1_22/v293_test.go
@@ -0,0 +1,45 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+	"code.gitea.io/gitea/models/project"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_CheckProjectColumnsConsistency(t *testing.T) {
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(project.Project), new(project.Column))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	require.NoError(t, CheckProjectColumnsConsistency(x))
+
+	// check if default column was added
+	var defaultColumn project.Column
+	has, err := x.Where("project_id=? AND `default` = ?", 1, true).Get(&defaultColumn)
+	require.NoError(t, err)
+	assert.True(t, has)
+	assert.Equal(t, int64(1), defaultColumn.ProjectID)
+	assert.True(t, defaultColumn.Default)
+
+	// check if multiple defaults, previous were removed and last will be kept
+	expectDefaultColumn, err := project.GetColumn(db.DefaultContext, 2)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), expectDefaultColumn.ProjectID)
+	assert.False(t, expectDefaultColumn.Default)
+
+	expectNonDefaultColumn, err := project.GetColumn(db.DefaultContext, 3)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), expectNonDefaultColumn.ProjectID)
+	assert.True(t, expectNonDefaultColumn.Default)
+}
diff --git a/models/migrations/v1_22/v294.go b/models/migrations/v1_22/v294.go
new file mode 100644
index 0000000..314b451
--- /dev/null
+++ b/models/migrations/v1_22/v294.go
@@ -0,0 +1,44 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+// AddUniqueIndexForProjectIssue adds unique indexes for project issue table
+func AddUniqueIndexForProjectIssue(x *xorm.Engine) error {
+	// remove possible duplicated records in table project_issue
+	type result struct {
+		IssueID   int64
+		ProjectID int64
+		Cnt       int
+	}
+	var results []result
+	if err := x.Select("issue_id, project_id, count(*) as cnt").
+		Table("project_issue").
+		GroupBy("issue_id, project_id").
+		Having("count(*) > 1").
+		Find(&results); err != nil {
+		return err
+	}
+	for _, r := range results {
+		var ids []int64
+		if err := x.SQL("SELECT id FROM project_issue WHERE issue_id = ? and project_id = ? limit ?", r.IssueID, r.ProjectID, r.Cnt-1).Find(&ids); err != nil {
+			return err
+		}
+		if _, err := x.Table("project_issue").In("id", ids).Delete(); err != nil {
+			return err
+		}
+	}
+
+	// add unique index for project_issue table
+	type ProjectIssue struct { //revive:disable-line:exported
+		ID        int64 `xorm:"pk autoincr"`
+		IssueID   int64 `xorm:"INDEX unique(s)"`
+		ProjectID int64 `xorm:"INDEX unique(s)"`
+	}
+
+	return x.Sync(new(ProjectIssue))
+}
diff --git a/models/migrations/v1_22/v294_test.go b/models/migrations/v1_22/v294_test.go
new file mode 100644
index 0000000..c465d53
--- /dev/null
+++ b/models/migrations/v1_22/v294_test.go
@@ -0,0 +1,53 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+	"slices"
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm/schemas"
+)
+
+func Test_AddUniqueIndexForProjectIssue(t *testing.T) {
+	type ProjectIssue struct { //revive:disable-line:exported
+		ID        int64 `xorm:"pk autoincr"`
+		IssueID   int64 `xorm:"INDEX"`
+		ProjectID int64 `xorm:"INDEX"`
+	}
+
+	// Prepare and load the testing database
+	x, deferable := migration_tests.PrepareTestEnv(t, 0, new(ProjectIssue))
+	defer deferable()
+	if x == nil || t.Failed() {
+		return
+	}
+
+	cnt, err := x.Table("project_issue").Where("project_id=1 AND issue_id=1").Count()
+	require.NoError(t, err)
+	assert.EqualValues(t, 2, cnt)
+
+	require.NoError(t, AddUniqueIndexForProjectIssue(x))
+
+	cnt, err = x.Table("project_issue").Where("project_id=1 AND issue_id=1").Count()
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, cnt)
+
+	tables, err := x.DBMetas()
+	require.NoError(t, err)
+	assert.Len(t, tables, 1)
+	found := false
+	for _, index := range tables[0].Indexes {
+		if index.Type == schemas.UniqueType {
+			found = true
+			slices.Equal(index.Cols, []string{"project_id", "issue_id"})
+			break
+		}
+	}
+	assert.True(t, found)
+}
diff --git a/models/migrations/v1_22/v295.go b/models/migrations/v1_22/v295.go
new file mode 100644
index 0000000..17bdadb
--- /dev/null
+++ b/models/migrations/v1_22/v295.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddCommitStatusSummary(x *xorm.Engine) error {
+	type CommitStatusSummary struct {
+		ID     int64  `xorm:"pk autoincr"`
+		RepoID int64  `xorm:"INDEX UNIQUE(repo_id_sha)"`
+		SHA    string `xorm:"VARCHAR(64) NOT NULL INDEX UNIQUE(repo_id_sha)"`
+		State  string `xorm:"VARCHAR(7) NOT NULL"`
+	}
+	// there is no migrations because if there is no data on this table, it will fall back to get data
+	// from commit status
+	return x.Sync2(new(CommitStatusSummary))
+}
diff --git a/models/migrations/v1_22/v296.go b/models/migrations/v1_22/v296.go
new file mode 100644
index 0000000..1ecacab
--- /dev/null
+++ b/models/migrations/v1_22/v296.go
@@ -0,0 +1,16 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func AddCommitStatusSummary2(x *xorm.Engine) error {
+	type CommitStatusSummary struct {
+		ID        int64  `xorm:"pk autoincr"`
+		TargetURL string `xorm:"TEXT"`
+	}
+	// there is no migrations because if there is no data on this table, it will fall back to get data
+	// from commit status
+	return x.Sync(new(CommitStatusSummary))
+}
diff --git a/models/migrations/v1_22/v298.go b/models/migrations/v1_22/v298.go
new file mode 100644
index 0000000..b9f3b95
--- /dev/null
+++ b/models/migrations/v1_22/v298.go
@@ -0,0 +1,10 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import "xorm.io/xorm"
+
+func DropWronglyCreatedTable(x *xorm.Engine) error {
+	return x.DropTables("o_auth2_application")
+}
diff --git a/models/migrations/v1_23/main_test.go b/models/migrations/v1_23/main_test.go
new file mode 100644
index 0000000..e3425e4
--- /dev/null
+++ b/models/migrations/v1_23/main_test.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import (
+	"testing"
+
+	migration_tests "code.gitea.io/gitea/models/migrations/test"
+)
+
+func TestMain(m *testing.M) {
+	migration_tests.MainTest(m)
+}
diff --git a/models/migrations/v1_23/v299.go b/models/migrations/v1_23/v299.go
new file mode 100644
index 0000000..f6db960
--- /dev/null
+++ b/models/migrations/v1_23/v299.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import "xorm.io/xorm"
+
+func AddContentVersionToIssueAndComment(x *xorm.Engine) error {
+	type Issue struct {
+		ContentVersion int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	type Comment struct {
+		ContentVersion int `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	return x.Sync(new(Comment), new(Issue))
+}
diff --git a/models/migrations/v1_23/v300.go b/models/migrations/v1_23/v300.go
new file mode 100644
index 0000000..f1f1ccc
--- /dev/null
+++ b/models/migrations/v1_23/v300.go
@@ -0,0 +1,17 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import "xorm.io/xorm"
+
+func AddForcePushBranchProtection(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		CanForcePush                 bool    `xorm:"NOT NULL DEFAULT false"`
+		EnableForcePushAllowlist     bool    `xorm:"NOT NULL DEFAULT false"`
+		ForcePushAllowlistUserIDs    []int64 `xorm:"JSON TEXT"`
+		ForcePushAllowlistTeamIDs    []int64 `xorm:"JSON TEXT"`
+		ForcePushAllowlistDeployKeys bool    `xorm:"NOT NULL DEFAULT false"`
+	}
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_23/v301.go b/models/migrations/v1_23/v301.go
new file mode 100644
index 0000000..b7797f6
--- /dev/null
+++ b/models/migrations/v1_23/v301.go
@@ -0,0 +1,14 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import "xorm.io/xorm"
+
+// AddSkipSeconderyAuthToOAuth2ApplicationTable: add SkipSecondaryAuthorization column, setting existing rows to false
+func AddSkipSecondaryAuthColumnToOAuth2ApplicationTable(x *xorm.Engine) error {
+	type oauth2Application struct {
+		SkipSecondaryAuthorization bool `xorm:"NOT NULL DEFAULT FALSE"`
+	}
+	return x.Sync(new(oauth2Application))
+}
diff --git a/models/migrations/v1_23/v302.go b/models/migrations/v1_23/v302.go
new file mode 100644
index 0000000..d7ea03e
--- /dev/null
+++ b/models/migrations/v1_23/v302.go
@@ -0,0 +1,18 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_23 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddIndexToActionTaskStoppedLogExpired(x *xorm.Engine) error {
+	type ActionTask struct {
+		Stopped    timeutil.TimeStamp `xorm:"index(stopped_log_expired)"`
+		LogExpired bool               `xorm:"index(stopped_log_expired)"`
+	}
+	return x.Sync(new(ActionTask))
+}
diff --git a/models/migrations/v1_6/v70.go b/models/migrations/v1_6/v70.go
new file mode 100644
index 0000000..74434a8
--- /dev/null
+++ b/models/migrations/v1_6/v70.go
@@ -0,0 +1,110 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_6 //nolint
+
+import (
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AddIssueDependencies(x *xorm.Engine) (err error) {
+	type IssueDependency struct {
+		ID           int64     `xorm:"pk autoincr"`
+		UserID       int64     `xorm:"NOT NULL"`
+		IssueID      int64     `xorm:"NOT NULL"`
+		DependencyID int64     `xorm:"NOT NULL"`
+		Created      time.Time `xorm:"-"`
+		CreatedUnix  int64     `xorm:"created"`
+		Updated      time.Time `xorm:"-"`
+		UpdatedUnix  int64     `xorm:"updated"`
+	}
+
+	const (
+		v16UnitTypeCode            = iota + 1 // 1 code
+		v16UnitTypeIssues                     // 2 issues
+		v16UnitTypePRs                        // 3 PRs
+		v16UnitTypeCommits                    // 4 Commits
+		v16UnitTypeReleases                   // 5 Releases
+		v16UnitTypeWiki                       // 6 Wiki
+		v16UnitTypeSettings                   // 7 Settings
+		v16UnitTypeExternalWiki               // 8 ExternalWiki
+		v16UnitTypeExternalTracker            // 9 ExternalTracker
+	)
+
+	if err = x.Sync(new(IssueDependency)); err != nil {
+		return fmt.Errorf("Error creating issue_dependency_table column definition: %w", err)
+	}
+
+	// Update Comment definition
+	// This (copied) struct does only contain fields used by xorm as the only use here is to update the database
+
+	// CommentType defines the comment type
+	type CommentType int
+
+	// TimeStamp defines a timestamp
+	type TimeStamp int64
+
+	type Comment struct {
+		ID               int64 `xorm:"pk autoincr"`
+		Type             CommentType
+		PosterID         int64 `xorm:"INDEX"`
+		IssueID          int64 `xorm:"INDEX"`
+		LabelID          int64
+		OldMilestoneID   int64
+		MilestoneID      int64
+		OldAssigneeID    int64
+		AssigneeID       int64
+		OldTitle         string
+		NewTitle         string
+		DependentIssueID int64
+
+		CommitID int64
+		Line     int64
+		Content  string `xorm:"TEXT"`
+
+		CreatedUnix TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix TimeStamp `xorm:"INDEX updated"`
+
+		// Reference issue in commit message
+		CommitSHA string `xorm:"VARCHAR(40)"`
+	}
+
+	if err = x.Sync(new(Comment)); err != nil {
+		return fmt.Errorf("Error updating issue_comment table column definition: %w", err)
+	}
+
+	// RepoUnit describes all units of a repository
+	type RepoUnit struct {
+		ID          int64
+		RepoID      int64          `xorm:"INDEX(s)"`
+		Type        int            `xorm:"INDEX(s)"`
+		Config      map[string]any `xorm:"JSON"`
+		CreatedUnix int64          `xorm:"INDEX CREATED"`
+		Created     time.Time      `xorm:"-"`
+	}
+
+	// Updating existing issue units
+	units := make([]*RepoUnit, 0, 100)
+	err = x.Where("`type` = ?", v16UnitTypeIssues).Find(&units)
+	if err != nil {
+		return fmt.Errorf("Query repo units: %w", err)
+	}
+	for _, unit := range units {
+		if unit.Config == nil {
+			unit.Config = make(map[string]any)
+		}
+		if _, ok := unit.Config["EnableDependencies"]; !ok {
+			unit.Config["EnableDependencies"] = setting.Service.DefaultEnableDependencies
+		}
+		if _, err := x.ID(unit.ID).Cols("config").Update(unit); err != nil {
+			return err
+		}
+	}
+
+	return err
+}
diff --git a/models/migrations/v1_6/v71.go b/models/migrations/v1_6/v71.go
new file mode 100644
index 0000000..5861872
--- /dev/null
+++ b/models/migrations/v1_6/v71.go
@@ -0,0 +1,79 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_6 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+)
+
+func AddScratchHash(x *xorm.Engine) error {
+	// TwoFactor see models/twofactor.go
+	type TwoFactor struct {
+		ID               int64 `xorm:"pk autoincr"`
+		UID              int64 `xorm:"UNIQUE"`
+		Secret           string
+		ScratchToken     string
+		ScratchSalt      string
+		ScratchHash      string
+		LastUsedPasscode string             `xorm:"VARCHAR(10)"`
+		CreatedUnix      timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix      timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	if err := x.Sync(new(TwoFactor)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	// transform all tokens to hashes
+	const batchSize = 100
+	for start := 0; ; start += batchSize {
+		tfas := make([]*TwoFactor, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Find(&tfas); err != nil {
+			return err
+		}
+		if len(tfas) == 0 {
+			break
+		}
+
+		for _, tfa := range tfas {
+			// generate salt
+			salt, err := util.CryptoRandomString(10)
+			if err != nil {
+				return err
+			}
+			tfa.ScratchSalt = salt
+			tfa.ScratchHash = base.HashToken(tfa.ScratchToken, salt)
+
+			if _, err := sess.ID(tfa.ID).Cols("scratch_salt, scratch_hash").Update(tfa); err != nil {
+				return fmt.Errorf("couldn't add in scratch_hash and scratch_salt: %w", err)
+			}
+		}
+	}
+
+	// Commit and begin new transaction for dropping columns
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := base.DropTableColumns(sess, "two_factor", "scratch_token"); err != nil {
+		return err
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_6/v72.go b/models/migrations/v1_6/v72.go
new file mode 100644
index 0000000..04cef9a
--- /dev/null
+++ b/models/migrations/v1_6/v72.go
@@ -0,0 +1,30 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_6 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddReview(x *xorm.Engine) error {
+	// Review see models/review.go
+	type Review struct {
+		ID          int64 `xorm:"pk autoincr"`
+		Type        string
+		ReviewerID  int64 `xorm:"index"`
+		IssueID     int64 `xorm:"index"`
+		Content     string
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+	}
+
+	if err := x.Sync(new(Review)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return nil
+}
diff --git a/models/migrations/v1_7/v73.go b/models/migrations/v1_7/v73.go
new file mode 100644
index 0000000..b5a748a
--- /dev/null
+++ b/models/migrations/v1_7/v73.go
@@ -0,0 +1,18 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_7 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddMustChangePassword(x *xorm.Engine) error {
+	// User see models/user.go
+	type User struct {
+		ID                 int64 `xorm:"pk autoincr"`
+		MustChangePassword bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(User))
+}
diff --git a/models/migrations/v1_7/v74.go b/models/migrations/v1_7/v74.go
new file mode 100644
index 0000000..f0567e3
--- /dev/null
+++ b/models/migrations/v1_7/v74.go
@@ -0,0 +1,15 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_7 //nolint
+
+import "xorm.io/xorm"
+
+func AddApprovalWhitelistsToProtectedBranches(x *xorm.Engine) error {
+	type ProtectedBranch struct {
+		ApprovalsWhitelistUserIDs []int64 `xorm:"JSON TEXT"`
+		ApprovalsWhitelistTeamIDs []int64 `xorm:"JSON TEXT"`
+		RequiredApprovals         int64   `xorm:"NOT NULL DEFAULT 0"`
+	}
+	return x.Sync(new(ProtectedBranch))
+}
diff --git a/models/migrations/v1_7/v75.go b/models/migrations/v1_7/v75.go
new file mode 100644
index 0000000..fa74309
--- /dev/null
+++ b/models/migrations/v1_7/v75.go
@@ -0,0 +1,32 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_7 //nolint
+
+import (
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func ClearNonusedData(x *xorm.Engine) error {
+	condDelete := func(colName string) builder.Cond {
+		return builder.NotIn(colName, builder.Select("id").From("`user`"))
+	}
+
+	if _, err := x.Exec(builder.Delete(condDelete("uid")).From("team_user")); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec(builder.Delete(condDelete("user_id")).From("collaboration")); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec(builder.Delete(condDelete("user_id")).From("stopwatch")); err != nil {
+		return err
+	}
+
+	if _, err := x.Exec(builder.Delete(condDelete("owner_id")).From("gpg_key")); err != nil {
+		return err
+	}
+	return nil
+}
diff --git a/models/migrations/v1_8/v76.go b/models/migrations/v1_8/v76.go
new file mode 100644
index 0000000..d3fbd94
--- /dev/null
+++ b/models/migrations/v1_8/v76.go
@@ -0,0 +1,74 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddPullRequestRebaseWithMerge(x *xorm.Engine) error {
+	// RepoUnit describes all units of a repository
+	type RepoUnit struct {
+		ID          int64
+		RepoID      int64              `xorm:"INDEX(s)"`
+		Type        int                `xorm:"INDEX(s)"`
+		Config      map[string]any     `xorm:"JSON"`
+		CreatedUnix timeutil.TimeStamp `xorm:"INDEX CREATED"`
+	}
+
+	const (
+		v16UnitTypeCode            = iota + 1 // 1 code
+		v16UnitTypeIssues                     // 2 issues
+		v16UnitTypePRs                        // 3 PRs
+		v16UnitTypeCommits                    // 4 Commits
+		v16UnitTypeReleases                   // 5 Releases
+		v16UnitTypeWiki                       // 6 Wiki
+		v16UnitTypeSettings                   // 7 Settings
+		v16UnitTypeExternalWiki               // 8 ExternalWiki
+		v16UnitTypeExternalTracker            // 9 ExternalTracker
+	)
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	// Updating existing issue units
+	units := make([]*RepoUnit, 0, 100)
+	if err := sess.Where("`type` = ?", v16UnitTypePRs).Find(&units); err != nil {
+		return fmt.Errorf("Query repo units: %w", err)
+	}
+	for _, unit := range units {
+		if unit.Config == nil {
+			unit.Config = make(map[string]any)
+		}
+		// Allow the new merge style if all other merge styles are allowed
+		allowMergeRebase := true
+
+		if allowMerge, ok := unit.Config["AllowMerge"]; ok {
+			allowMergeRebase = allowMergeRebase && allowMerge.(bool)
+		}
+
+		if allowRebase, ok := unit.Config["AllowRebase"]; ok {
+			allowMergeRebase = allowMergeRebase && allowRebase.(bool)
+		}
+
+		if allowSquash, ok := unit.Config["AllowSquash"]; ok {
+			allowMergeRebase = allowMergeRebase && allowSquash.(bool)
+		}
+
+		if _, ok := unit.Config["AllowRebaseMerge"]; !ok {
+			unit.Config["AllowRebaseMerge"] = allowMergeRebase
+		}
+		if _, err := sess.ID(unit.ID).Cols("config").Update(unit); err != nil {
+			return err
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_8/v77.go b/models/migrations/v1_8/v77.go
new file mode 100644
index 0000000..8b19993
--- /dev/null
+++ b/models/migrations/v1_8/v77.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddUserDefaultTheme(x *xorm.Engine) error {
+	type User struct {
+		Theme string `xorm:"VARCHAR(30) NOT NULL DEFAULT ''"`
+	}
+
+	return x.Sync(new(User))
+}
diff --git a/models/migrations/v1_8/v78.go b/models/migrations/v1_8/v78.go
new file mode 100644
index 0000000..8f041c1
--- /dev/null
+++ b/models/migrations/v1_8/v78.go
@@ -0,0 +1,43 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import (
+	"code.gitea.io/gitea/models/migrations/base"
+
+	"xorm.io/xorm"
+)
+
+func RenameRepoIsBareToIsEmpty(x *xorm.Engine) error {
+	type Repository struct {
+		ID      int64 `xorm:"pk autoincr"`
+		IsBare  bool
+		IsEmpty bool `xorm:"INDEX"`
+	}
+
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(Repository)); err != nil {
+		return err
+	}
+	if _, err := sess.Exec("UPDATE repository SET is_empty = is_bare;"); err != nil {
+		return err
+	}
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := base.DropTableColumns(sess, "repository", "is_bare"); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_8/v79.go b/models/migrations/v1_8/v79.go
new file mode 100644
index 0000000..eb3a9ed
--- /dev/null
+++ b/models/migrations/v1_8/v79.go
@@ -0,0 +1,25 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func AddCanCloseIssuesViaCommitInAnyBranch(x *xorm.Engine) error {
+	type Repository struct {
+		ID                              int64 `xorm:"pk autoincr"`
+		CloseIssuesViaCommitInAnyBranch bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	if err := x.Sync(new(Repository)); err != nil {
+		return err
+	}
+
+	_, err := x.Exec("UPDATE repository SET close_issues_via_commit_in_any_branch = ?",
+		setting.Repository.DefaultCloseIssuesViaCommitsInAnyBranch)
+	return err
+}
diff --git a/models/migrations/v1_8/v80.go b/models/migrations/v1_8/v80.go
new file mode 100644
index 0000000..cebbbea
--- /dev/null
+++ b/models/migrations/v1_8/v80.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import "xorm.io/xorm"
+
+func AddIsLockedToIssues(x *xorm.Engine) error {
+	// Issue see models/issue.go
+	type Issue struct {
+		ID       int64 `xorm:"pk autoincr"`
+		IsLocked bool  `xorm:"NOT NULL DEFAULT false"`
+	}
+
+	return x.Sync(new(Issue))
+}
diff --git a/models/migrations/v1_8/v81.go b/models/migrations/v1_8/v81.go
new file mode 100644
index 0000000..734fc24
--- /dev/null
+++ b/models/migrations/v1_8/v81.go
@@ -0,0 +1,28 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_8 //nolint
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+func ChangeU2FCounterType(x *xorm.Engine) error {
+	var err error
+
+	switch x.Dialect().URI().DBType {
+	case schemas.MYSQL:
+		_, err = x.Exec("ALTER TABLE `u2f_registration` MODIFY `counter` BIGINT")
+	case schemas.POSTGRES:
+		_, err = x.Exec("ALTER TABLE `u2f_registration` ALTER COLUMN `counter` SET DATA TYPE bigint")
+	}
+
+	if err != nil {
+		return fmt.Errorf("Error changing u2f_registration counter column type: %w", err)
+	}
+
+	return nil
+}
diff --git a/models/migrations/v1_9/v82.go b/models/migrations/v1_9/v82.go
new file mode 100644
index 0000000..26806dd
--- /dev/null
+++ b/models/migrations/v1_9/v82.go
@@ -0,0 +1,133 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/xorm"
+)
+
+func FixReleaseSha1OnReleaseTable(x *xorm.Engine) error {
+	type Release struct {
+		ID      int64
+		RepoID  int64
+		Sha1    string
+		TagName string
+	}
+
+	type Repository struct {
+		ID      int64
+		OwnerID int64
+		Name    string
+	}
+
+	type User struct {
+		ID   int64
+		Name string
+	}
+
+	// UserPath returns the path absolute path of user repositories.
+	UserPath := func(userName string) string {
+		return filepath.Join(setting.RepoRootPath, strings.ToLower(userName))
+	}
+
+	// RepoPath returns repository path by given user and repository name.
+	RepoPath := func(userName, repoName string) string {
+		return filepath.Join(UserPath(userName), strings.ToLower(repoName)+".git")
+	}
+
+	// Update release sha1
+	const batchSize = 100
+	sess := x.NewSession()
+	defer sess.Close()
+
+	var (
+		err          error
+		count        int
+		gitRepoCache = make(map[int64]*git.Repository)
+		repoCache    = make(map[int64]*Repository)
+		userCache    = make(map[int64]*User)
+	)
+
+	if err = sess.Begin(); err != nil {
+		return err
+	}
+
+	for start := 0; ; start += batchSize {
+		releases := make([]*Release, 0, batchSize)
+		if err = sess.Limit(batchSize, start).Asc("id").Where("is_tag=?", false).Find(&releases); err != nil {
+			return err
+		}
+		if len(releases) == 0 {
+			break
+		}
+
+		for _, release := range releases {
+			gitRepo, ok := gitRepoCache[release.RepoID]
+			if !ok {
+				repo, ok := repoCache[release.RepoID]
+				if !ok {
+					repo = new(Repository)
+					has, err := sess.ID(release.RepoID).Get(repo)
+					if err != nil {
+						return err
+					} else if !has {
+						return fmt.Errorf("Repository %d is not exist", release.RepoID)
+					}
+
+					repoCache[release.RepoID] = repo
+				}
+
+				user, ok := userCache[repo.OwnerID]
+				if !ok {
+					user = new(User)
+					has, err := sess.ID(repo.OwnerID).Get(user)
+					if err != nil {
+						return err
+					} else if !has {
+						return fmt.Errorf("User %d is not exist", repo.OwnerID)
+					}
+
+					userCache[repo.OwnerID] = user
+				}
+
+				gitRepo, err = git.OpenRepository(git.DefaultContext, RepoPath(user.Name, repo.Name))
+				if err != nil {
+					return err
+				}
+				defer gitRepo.Close()
+				gitRepoCache[release.RepoID] = gitRepo
+			}
+
+			release.Sha1, err = gitRepo.GetTagCommitID(release.TagName)
+			if err != nil && !git.IsErrNotExist(err) {
+				return err
+			}
+
+			if err == nil {
+				if _, err = sess.ID(release.ID).Cols("sha1").Update(release); err != nil {
+					return err
+				}
+			}
+
+			count++
+			if count >= 1000 {
+				if err = sess.Commit(); err != nil {
+					return err
+				}
+				if err = sess.Begin(); err != nil {
+					return err
+				}
+				count = 0
+			}
+		}
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_9/v83.go b/models/migrations/v1_9/v83.go
new file mode 100644
index 0000000..10e6c45
--- /dev/null
+++ b/models/migrations/v1_9/v83.go
@@ -0,0 +1,27 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+func AddUploaderIDForAttachment(x *xorm.Engine) error {
+	type Attachment struct {
+		ID            int64  `xorm:"pk autoincr"`
+		UUID          string `xorm:"uuid UNIQUE"`
+		IssueID       int64  `xorm:"INDEX"`
+		ReleaseID     int64  `xorm:"INDEX"`
+		UploaderID    int64  `xorm:"INDEX DEFAULT 0"`
+		CommentID     int64
+		Name          string
+		DownloadCount int64              `xorm:"DEFAULT 0"`
+		Size          int64              `xorm:"DEFAULT 0"`
+		CreatedUnix   timeutil.TimeStamp `xorm:"created"`
+	}
+
+	return x.Sync(new(Attachment))
+}
diff --git a/models/migrations/v1_9/v84.go b/models/migrations/v1_9/v84.go
new file mode 100644
index 0000000..c7155fe
--- /dev/null
+++ b/models/migrations/v1_9/v84.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddGPGKeyImport(x *xorm.Engine) error {
+	type GPGKeyImport struct {
+		KeyID   string `xorm:"pk CHAR(16) NOT NULL"`
+		Content string `xorm:"TEXT NOT NULL"`
+	}
+
+	return x.Sync(new(GPGKeyImport))
+}
diff --git a/models/migrations/v1_9/v85.go b/models/migrations/v1_9/v85.go
new file mode 100644
index 0000000..a23d7c5
--- /dev/null
+++ b/models/migrations/v1_9/v85.go
@@ -0,0 +1,118 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/migrations/base"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+)
+
+func HashAppToken(x *xorm.Engine) error {
+	// AccessToken see models/token.go
+	type AccessToken struct {
+		ID             int64 `xorm:"pk autoincr"`
+		UID            int64 `xorm:"INDEX"`
+		Name           string
+		Sha1           string
+		Token          string `xorm:"-"`
+		TokenHash      string // sha256 of token - we will ensure UNIQUE later
+		TokenSalt      string
+		TokenLastEight string `xorm:"token_last_eight"`
+
+		CreatedUnix       timeutil.TimeStamp `xorm:"INDEX created"`
+		UpdatedUnix       timeutil.TimeStamp `xorm:"INDEX updated"`
+		HasRecentActivity bool               `xorm:"-"`
+		HasUsed           bool               `xorm:"-"`
+	}
+
+	// First remove the index
+	sess := x.NewSession()
+	defer sess.Close()
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := sess.Sync(new(AccessToken)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	// transform all tokens to hashes
+	const batchSize = 100
+	for start := 0; ; start += batchSize {
+		tokens := make([]*AccessToken, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Find(&tokens); err != nil {
+			return err
+		}
+		if len(tokens) == 0 {
+			break
+		}
+
+		for _, token := range tokens {
+			// generate salt
+			salt, err := util.CryptoRandomString(10)
+			if err != nil {
+				return err
+			}
+			token.TokenSalt = salt
+			token.TokenHash = base.HashToken(token.Sha1, salt)
+			if len(token.Sha1) < 8 {
+				log.Warn("Unable to transform token %s with name %s belonging to user ID %d, skipping transformation", token.Sha1, token.Name, token.UID)
+				continue
+			}
+			token.TokenLastEight = token.Sha1[len(token.Sha1)-8:]
+			token.Sha1 = "" // ensure to blank out column in case drop column doesn't work
+
+			if _, err := sess.ID(token.ID).Cols("token_hash, token_salt, token_last_eight, sha1").Update(token); err != nil {
+				return fmt.Errorf("couldn't add in sha1, token_hash, token_salt and token_last_eight: %w", err)
+			}
+		}
+	}
+
+	// Commit and begin new transaction for dropping columns
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := base.DropTableColumns(sess, "access_token", "sha1"); err != nil {
+		return err
+	}
+	if err := sess.Commit(); err != nil {
+		return err
+	}
+	return resyncHashAppTokenWithUniqueHash(x)
+}
+
+func resyncHashAppTokenWithUniqueHash(x *xorm.Engine) error {
+	// AccessToken see models/token.go
+	type AccessToken struct {
+		TokenHash string `xorm:"UNIQUE"` // sha256 of token - we will ensure UNIQUE later
+	}
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+	if err := sess.Sync(new(AccessToken)); err != nil {
+		return fmt.Errorf("Sync: %w", err)
+	}
+	return sess.Commit()
+}
diff --git a/models/migrations/v1_9/v86.go b/models/migrations/v1_9/v86.go
new file mode 100644
index 0000000..cf2725d
--- /dev/null
+++ b/models/migrations/v1_9/v86.go
@@ -0,0 +1,16 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddHTTPMethodToWebhook(x *xorm.Engine) error {
+	type Webhook struct {
+		HTTPMethod string `xorm:"http_method DEFAULT 'POST'"`
+	}
+
+	return x.Sync(new(Webhook))
+}
diff --git a/models/migrations/v1_9/v87.go b/models/migrations/v1_9/v87.go
new file mode 100644
index 0000000..fa01b6e
--- /dev/null
+++ b/models/migrations/v1_9/v87.go
@@ -0,0 +1,17 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_9 //nolint
+
+import (
+	"xorm.io/xorm"
+)
+
+func AddAvatarFieldToRepository(x *xorm.Engine) error {
+	type Repository struct {
+		// ID(10-20)-md5(32) - must fit into 64 symbols
+		Avatar string `xorm:"VARCHAR(64)"`
+	}
+
+	return x.Sync(new(Repository))
+}
diff --git a/models/org.go b/models/org.go
new file mode 100644
index 0000000..5f61f05
--- /dev/null
+++ b/models/org.go
@@ -0,0 +1,102 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+)
+
+// RemoveOrgUser removes user from given organization.
+func RemoveOrgUser(ctx context.Context, orgID, userID int64) error {
+	ou := new(organization.OrgUser)
+
+	has, err := db.GetEngine(ctx).
+		Where("uid=?", userID).
+		And("org_id=?", orgID).
+		Get(ou)
+	if err != nil {
+		return fmt.Errorf("get org-user: %w", err)
+	} else if !has {
+		return nil
+	}
+
+	org, err := organization.GetOrgByID(ctx, orgID)
+	if err != nil {
+		return fmt.Errorf("GetUserByID [%d]: %w", orgID, err)
+	}
+
+	// Check if the user to delete is the last member in owner team.
+	if isOwner, err := organization.IsOrganizationOwner(ctx, orgID, userID); err != nil {
+		return err
+	} else if isOwner {
+		t, err := organization.GetOwnerTeam(ctx, org.ID)
+		if err != nil {
+			return err
+		}
+		if t.NumMembers == 1 {
+			if err := t.LoadMembers(ctx); err != nil {
+				return err
+			}
+			if t.Members[0].ID == userID {
+				return organization.ErrLastOrgOwner{UID: userID}
+			}
+		}
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err := db.DeleteByID[organization.OrgUser](ctx, ou.ID); err != nil {
+		return err
+	} else if _, err = db.Exec(ctx, "UPDATE `user` SET num_members=num_members-1 WHERE id=?", orgID); err != nil {
+		return err
+	}
+
+	// Delete all repository accesses and unwatch them.
+	env, err := organization.AccessibleReposEnv(ctx, org, userID)
+	if err != nil {
+		return fmt.Errorf("AccessibleReposEnv: %w", err)
+	}
+	repoIDs, err := env.RepoIDs(1, org.NumRepos)
+	if err != nil {
+		return fmt.Errorf("GetUserRepositories [%d]: %w", userID, err)
+	}
+	for _, repoID := range repoIDs {
+		if err = repo_model.WatchRepo(ctx, userID, repoID, false); err != nil {
+			return err
+		}
+	}
+
+	if len(repoIDs) > 0 {
+		if _, err = db.GetEngine(ctx).
+			Where("user_id = ?", userID).
+			In("repo_id", repoIDs).
+			Delete(new(access_model.Access)); err != nil {
+			return err
+		}
+	}
+
+	// Delete member in their teams.
+	teams, err := organization.GetUserOrgTeams(ctx, org.ID, userID)
+	if err != nil {
+		return err
+	}
+	for _, t := range teams {
+		if err = removeTeamMember(ctx, t, userID); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
diff --git a/models/org_team.go b/models/org_team.go
new file mode 100644
index 0000000..1a45243
--- /dev/null
+++ b/models/org_team.go
@@ -0,0 +1,551 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	git_model "code.gitea.io/gitea/models/git"
+	issues_model "code.gitea.io/gitea/models/issues"
+	"code.gitea.io/gitea/models/organization"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+func AddRepository(ctx context.Context, t *organization.Team, repo *repo_model.Repository) (err error) {
+	if err = organization.AddTeamRepo(ctx, t.OrgID, t.ID, repo.ID); err != nil {
+		return err
+	}
+
+	if err = organization.IncrTeamRepoNum(ctx, t.ID); err != nil {
+		return fmt.Errorf("update team: %w", err)
+	}
+
+	t.NumRepos++
+
+	if err = access_model.RecalculateTeamAccesses(ctx, repo, 0); err != nil {
+		return fmt.Errorf("recalculateAccesses: %w", err)
+	}
+
+	// Make all team members watch this repo if enabled in global settings
+	if setting.Service.AutoWatchNewRepos {
+		if err = t.LoadMembers(ctx); err != nil {
+			return fmt.Errorf("getMembers: %w", err)
+		}
+		for _, u := range t.Members {
+			if err = repo_model.WatchRepo(ctx, u.ID, repo.ID, true); err != nil {
+				return fmt.Errorf("watchRepo: %w", err)
+			}
+		}
+	}
+
+	return nil
+}
+
+// addAllRepositories adds all repositories to the team.
+// If the team already has some repositories they will be left unchanged.
+func addAllRepositories(ctx context.Context, t *organization.Team) error {
+	orgRepos, err := organization.GetOrgRepositories(ctx, t.OrgID)
+	if err != nil {
+		return fmt.Errorf("get org repos: %w", err)
+	}
+
+	for _, repo := range orgRepos {
+		if !organization.HasTeamRepo(ctx, t.OrgID, t.ID, repo.ID) {
+			if err := AddRepository(ctx, t, repo); err != nil {
+				return fmt.Errorf("AddRepository: %w", err)
+			}
+		}
+	}
+
+	return nil
+}
+
+// AddAllRepositories adds all repositories to the team
+func AddAllRepositories(ctx context.Context, t *organization.Team) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = addAllRepositories(ctx, t); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// RemoveAllRepositories removes all repositories from team and recalculates access
+func RemoveAllRepositories(ctx context.Context, t *organization.Team) (err error) {
+	if t.IncludesAllRepositories {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = removeAllRepositories(ctx, t); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// removeAllRepositories removes all repositories from team and recalculates access
+// Note: Shall not be called if team includes all repositories
+func removeAllRepositories(ctx context.Context, t *organization.Team) (err error) {
+	e := db.GetEngine(ctx)
+	// Delete all accesses.
+	for _, repo := range t.Repos {
+		if err := access_model.RecalculateTeamAccesses(ctx, repo, t.ID); err != nil {
+			return err
+		}
+
+		// Remove watches from all users and now unaccessible repos
+		for _, user := range t.Members {
+			has, err := access_model.HasAccess(ctx, user.ID, repo)
+			if err != nil {
+				return err
+			} else if has {
+				continue
+			}
+
+			if err = repo_model.WatchRepo(ctx, user.ID, repo.ID, false); err != nil {
+				return err
+			}
+
+			// Remove all IssueWatches a user has subscribed to in the repositories
+			if err = issues_model.RemoveIssueWatchersByRepoID(ctx, user.ID, repo.ID); err != nil {
+				return err
+			}
+		}
+	}
+
+	// Delete team-repo
+	if _, err := e.
+		Where("team_id=?", t.ID).
+		Delete(new(organization.TeamRepo)); err != nil {
+		return err
+	}
+
+	t.NumRepos = 0
+	if _, err = e.ID(t.ID).Cols("num_repos").Update(t); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// NewTeam creates a record of new team.
+// It's caller's responsibility to assign organization ID.
+func NewTeam(ctx context.Context, t *organization.Team) (err error) {
+	if len(t.Name) == 0 {
+		return util.NewInvalidArgumentErrorf("empty team name")
+	}
+
+	if err = organization.IsUsableTeamName(t.Name); err != nil {
+		return err
+	}
+
+	has, err := db.ExistByID[user_model.User](ctx, t.OrgID)
+	if err != nil {
+		return err
+	}
+	if !has {
+		return organization.ErrOrgNotExist{ID: t.OrgID}
+	}
+
+	t.LowerName = strings.ToLower(t.Name)
+	has, err = db.Exist[organization.Team](ctx, builder.Eq{
+		"org_id":     t.OrgID,
+		"lower_name": t.LowerName,
+	})
+	if err != nil {
+		return err
+	}
+	if has {
+		return organization.ErrTeamAlreadyExist{OrgID: t.OrgID, Name: t.LowerName}
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = db.Insert(ctx, t); err != nil {
+		return err
+	}
+
+	// insert units for team
+	if len(t.Units) > 0 {
+		for _, unit := range t.Units {
+			unit.TeamID = t.ID
+		}
+		if err = db.Insert(ctx, &t.Units); err != nil {
+			return err
+		}
+	}
+
+	// Add all repositories to the team if it has access to all of them.
+	if t.IncludesAllRepositories {
+		err = addAllRepositories(ctx, t)
+		if err != nil {
+			return fmt.Errorf("addAllRepositories: %w", err)
+		}
+	}
+
+	// Update organization number of teams.
+	if _, err = db.Exec(ctx, "UPDATE `user` SET num_teams=num_teams+1 WHERE id = ?", t.OrgID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+// UpdateTeam updates information of team.
+func UpdateTeam(ctx context.Context, t *organization.Team, authChanged, includeAllChanged bool) (err error) {
+	if len(t.Name) == 0 {
+		return util.NewInvalidArgumentErrorf("empty team name")
+	}
+
+	if len(t.Description) > 255 {
+		t.Description = t.Description[:255]
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	t.LowerName = strings.ToLower(t.Name)
+	has, err := db.Exist[organization.Team](ctx, builder.Eq{
+		"org_id":     t.OrgID,
+		"lower_name": t.LowerName,
+	}.And(builder.Neq{"id": t.ID}),
+	)
+	if err != nil {
+		return err
+	} else if has {
+		return organization.ErrTeamAlreadyExist{OrgID: t.OrgID, Name: t.LowerName}
+	}
+
+	sess := db.GetEngine(ctx)
+	if _, err = sess.ID(t.ID).Cols("name", "lower_name", "description",
+		"can_create_org_repo", "authorize", "includes_all_repositories").Update(t); err != nil {
+		return fmt.Errorf("update: %w", err)
+	}
+
+	// update units for team
+	if len(t.Units) > 0 {
+		for _, unit := range t.Units {
+			unit.TeamID = t.ID
+		}
+		// Delete team-unit.
+		if _, err := sess.
+			Where("team_id=?", t.ID).
+			Delete(new(organization.TeamUnit)); err != nil {
+			return err
+		}
+		if _, err = sess.Cols("org_id", "team_id", "type", "access_mode").Insert(&t.Units); err != nil {
+			return err
+		}
+	}
+
+	// Update access for team members if needed.
+	if authChanged {
+		if err = t.LoadRepositories(ctx); err != nil {
+			return fmt.Errorf("LoadRepositories: %w", err)
+		}
+
+		for _, repo := range t.Repos {
+			if err = access_model.RecalculateTeamAccesses(ctx, repo, 0); err != nil {
+				return fmt.Errorf("recalculateTeamAccesses: %w", err)
+			}
+		}
+	}
+
+	// Add all repositories to the team if it has access to all of them.
+	if includeAllChanged && t.IncludesAllRepositories {
+		err = addAllRepositories(ctx, t)
+		if err != nil {
+			return fmt.Errorf("addAllRepositories: %w", err)
+		}
+	}
+
+	return committer.Commit()
+}
+
+// DeleteTeam deletes given team.
+// It's caller's responsibility to assign organization ID.
+func DeleteTeam(ctx context.Context, t *organization.Team) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := t.LoadRepositories(ctx); err != nil {
+		return err
+	}
+
+	if err := t.LoadMembers(ctx); err != nil {
+		return err
+	}
+
+	// update branch protections
+	{
+		protections := make([]*git_model.ProtectedBranch, 0, 10)
+		err := db.GetEngine(ctx).In("repo_id",
+			builder.Select("id").From("repository").Where(builder.Eq{"owner_id": t.OrgID})).
+			Find(&protections)
+		if err != nil {
+			return fmt.Errorf("findProtectedBranches: %w", err)
+		}
+		for _, p := range protections {
+			if err := git_model.RemoveTeamIDFromProtectedBranch(ctx, p, t.ID); err != nil {
+				return err
+			}
+		}
+	}
+
+	if !t.IncludesAllRepositories {
+		if err := removeAllRepositories(ctx, t); err != nil {
+			return err
+		}
+	}
+
+	if err := db.DeleteBeans(ctx,
+		&organization.Team{ID: t.ID},
+		&organization.TeamUser{OrgID: t.OrgID, TeamID: t.ID},
+		&organization.TeamUnit{TeamID: t.ID},
+		&organization.TeamInvite{TeamID: t.ID},
+		&issues_model.Review{Type: issues_model.ReviewTypeRequest, ReviewerTeamID: t.ID}, // batch delete the binding relationship between team and PR (request review from team)
+	); err != nil {
+		return err
+	}
+
+	for _, tm := range t.Members {
+		if err := removeInvalidOrgUser(ctx, tm.ID, t.OrgID); err != nil {
+			return err
+		}
+	}
+
+	// Update organization number of teams.
+	if _, err := db.Exec(ctx, "UPDATE `user` SET num_teams=num_teams-1 WHERE id=?", t.OrgID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// AddTeamMember adds new membership of given team to given organization,
+// the user will have membership to given organization automatically when needed.
+func AddTeamMember(ctx context.Context, team *organization.Team, userID int64) error {
+	isAlreadyMember, err := organization.IsTeamMember(ctx, team.OrgID, team.ID, userID)
+	if err != nil || isAlreadyMember {
+		return err
+	}
+
+	if err := organization.AddOrgUser(ctx, team.OrgID, userID); err != nil {
+		return err
+	}
+
+	err = db.WithTx(ctx, func(ctx context.Context) error {
+		// check in transaction
+		isAlreadyMember, err = organization.IsTeamMember(ctx, team.OrgID, team.ID, userID)
+		if err != nil || isAlreadyMember {
+			return err
+		}
+
+		sess := db.GetEngine(ctx)
+
+		if err := db.Insert(ctx, &organization.TeamUser{
+			UID:    userID,
+			OrgID:  team.OrgID,
+			TeamID: team.ID,
+		}); err != nil {
+			return err
+		} else if _, err := sess.Incr("num_members").ID(team.ID).Update(new(organization.Team)); err != nil {
+			return err
+		}
+
+		team.NumMembers++
+
+		// Give access to team repositories.
+		// update exist access if mode become bigger
+		subQuery := builder.Select("repo_id").From("team_repo").
+			Where(builder.Eq{"team_id": team.ID})
+
+		if _, err := sess.Where("user_id=?", userID).
+			In("repo_id", subQuery).
+			And("mode < ?", team.AccessMode).
+			SetExpr("mode", team.AccessMode).
+			Update(new(access_model.Access)); err != nil {
+			return fmt.Errorf("update user accesses: %w", err)
+		}
+
+		// for not exist access
+		var repoIDs []int64
+		accessSubQuery := builder.Select("repo_id").From("access").Where(builder.Eq{"user_id": userID})
+		if err := sess.SQL(subQuery.And(builder.NotIn("repo_id", accessSubQuery))).Find(&repoIDs); err != nil {
+			return fmt.Errorf("select id accesses: %w", err)
+		}
+
+		accesses := make([]*access_model.Access, 0, 100)
+		for i, repoID := range repoIDs {
+			accesses = append(accesses, &access_model.Access{RepoID: repoID, UserID: userID, Mode: team.AccessMode})
+			if (i%100 == 0 || i == len(repoIDs)-1) && len(accesses) > 0 {
+				if err = db.Insert(ctx, accesses); err != nil {
+					return fmt.Errorf("insert new user accesses: %w", err)
+				}
+				accesses = accesses[:0]
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	// this behaviour may spend much time so run it in a goroutine
+	// FIXME: Update watch repos batchly
+	if setting.Service.AutoWatchNewRepos {
+		// Get team and its repositories.
+		if err := team.LoadRepositories(ctx); err != nil {
+			log.Error("team.LoadRepositories failed: %v", err)
+		}
+		// FIXME: in the goroutine, it can't access the "ctx", it could only use db.DefaultContext at the moment
+		go func(repos []*repo_model.Repository) {
+			for _, repo := range repos {
+				if err = repo_model.WatchRepo(db.DefaultContext, userID, repo.ID, true); err != nil {
+					log.Error("watch repo failed: %v", err)
+				}
+			}
+		}(team.Repos)
+	}
+
+	return nil
+}
+
+func removeTeamMember(ctx context.Context, team *organization.Team, userID int64) error {
+	e := db.GetEngine(ctx)
+	isMember, err := organization.IsTeamMember(ctx, team.OrgID, team.ID, userID)
+	if err != nil || !isMember {
+		return err
+	}
+
+	// Check if the user to delete is the last member in owner team.
+	if team.IsOwnerTeam() && team.NumMembers == 1 {
+		return organization.ErrLastOrgOwner{UID: userID}
+	}
+
+	team.NumMembers--
+
+	if err := team.LoadRepositories(ctx); err != nil {
+		return err
+	}
+
+	if _, err := e.Delete(&organization.TeamUser{
+		UID:    userID,
+		OrgID:  team.OrgID,
+		TeamID: team.ID,
+	}); err != nil {
+		return err
+	} else if _, err = e.
+		ID(team.ID).
+		Cols("num_members").
+		Update(team); err != nil {
+		return err
+	}
+
+	// Delete access to team repositories.
+	for _, repo := range team.Repos {
+		if err := access_model.RecalculateUserAccess(ctx, repo, userID); err != nil {
+			return err
+		}
+
+		// Remove watches from now unaccessible
+		if err := ReconsiderWatches(ctx, repo, userID); err != nil {
+			return err
+		}
+
+		// Remove issue assignments from now unaccessible
+		if err := ReconsiderRepoIssuesAssignee(ctx, repo, userID); err != nil {
+			return err
+		}
+	}
+
+	return removeInvalidOrgUser(ctx, userID, team.OrgID)
+}
+
+func removeInvalidOrgUser(ctx context.Context, userID, orgID int64) error {
+	// Check if the user is a member of any team in the organization.
+	if count, err := db.GetEngine(ctx).Count(&organization.TeamUser{
+		UID:   userID,
+		OrgID: orgID,
+	}); err != nil {
+		return err
+	} else if count == 0 {
+		return RemoveOrgUser(ctx, orgID, userID)
+	}
+	return nil
+}
+
+// RemoveTeamMember removes member from given team of given organization.
+func RemoveTeamMember(ctx context.Context, team *organization.Team, userID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	if err := removeTeamMember(ctx, team, userID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func ReconsiderRepoIssuesAssignee(ctx context.Context, repo *repo_model.Repository, uid int64) error {
+	user, err := user_model.GetUserByID(ctx, uid)
+	if err != nil {
+		return err
+	}
+
+	if canAssigned, err := access_model.CanBeAssigned(ctx, user, repo, true); err != nil || canAssigned {
+		return err
+	}
+
+	if _, err := db.GetEngine(ctx).Where(builder.Eq{"assignee_id": uid}).
+		In("issue_id", builder.Select("id").From("issue").Where(builder.Eq{"repo_id": repo.ID})).
+		Delete(&issues_model.IssueAssignees{}); err != nil {
+		return fmt.Errorf("Could not delete assignee[%d] %w", uid, err)
+	}
+	return nil
+}
+
+func ReconsiderWatches(ctx context.Context, repo *repo_model.Repository, uid int64) error {
+	if has, err := access_model.HasAccess(ctx, uid, repo); err != nil || has {
+		return err
+	}
+	if err := repo_model.WatchRepo(ctx, uid, repo.ID, false); err != nil {
+		return err
+	}
+
+	// Remove all IssueWatches a user has subscribed to in the repository
+	return issues_model.RemoveIssueWatchersByRepoID(ctx, uid, repo.ID)
+}
diff --git a/models/org_team_test.go b/models/org_team_test.go
new file mode 100644
index 0000000..2819607
--- /dev/null
+++ b/models/org_team_test.go
@@ -0,0 +1,170 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTeam_AddMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID, userID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, AddTeamMember(db.DefaultContext, team, userID))
+		unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{UID: userID, TeamID: teamID})
+		unittest.CheckConsistencyFor(t, &organization.Team{ID: teamID}, &user_model.User{ID: team.OrgID})
+	}
+	test(1, 2)
+	test(1, 4)
+	test(3, 2)
+}
+
+func TestTeam_RemoveMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(teamID, userID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, RemoveTeamMember(db.DefaultContext, team, userID))
+		unittest.AssertNotExistsBean(t, &organization.TeamUser{UID: userID, TeamID: teamID})
+		unittest.CheckConsistencyFor(t, &organization.Team{ID: teamID})
+	}
+	testSuccess(1, 4)
+	testSuccess(2, 2)
+	testSuccess(3, 2)
+	testSuccess(3, unittest.NonexistentID)
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 1})
+	err := RemoveTeamMember(db.DefaultContext, team, 2)
+	assert.True(t, organization.IsErrLastOrgOwner(err))
+}
+
+func TestIsUsableTeamName(t *testing.T) {
+	require.NoError(t, organization.IsUsableTeamName("usable"))
+	assert.True(t, db.IsErrNameReserved(organization.IsUsableTeamName("new")))
+}
+
+func TestNewTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	const teamName = "newTeamName"
+	team := &organization.Team{Name: teamName, OrgID: 3}
+	require.NoError(t, NewTeam(db.DefaultContext, team))
+	unittest.AssertExistsAndLoadBean(t, &organization.Team{Name: teamName})
+	unittest.CheckConsistencyFor(t, &organization.Team{}, &user_model.User{ID: team.OrgID})
+}
+
+func TestUpdateTeam(t *testing.T) {
+	// successful update
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+	team.LowerName = "newname"
+	team.Name = "newName"
+	team.Description = strings.Repeat("A long description!", 100)
+	team.AccessMode = perm.AccessModeAdmin
+	require.NoError(t, UpdateTeam(db.DefaultContext, team, true, false))
+
+	team = unittest.AssertExistsAndLoadBean(t, &organization.Team{Name: "newName"})
+	assert.True(t, strings.HasPrefix(team.Description, "A long description!"))
+
+	access := unittest.AssertExistsAndLoadBean(t, &access_model.Access{UserID: 4, RepoID: 3})
+	assert.EqualValues(t, perm.AccessModeAdmin, access.Mode)
+
+	unittest.CheckConsistencyFor(t, &organization.Team{ID: team.ID})
+}
+
+func TestUpdateTeam2(t *testing.T) {
+	// update to already-existing team
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+	team.LowerName = "owners"
+	team.Name = "Owners"
+	team.Description = strings.Repeat("A long description!", 100)
+	err := UpdateTeam(db.DefaultContext, team, true, false)
+	assert.True(t, organization.IsErrTeamAlreadyExist(err))
+
+	unittest.CheckConsistencyFor(t, &organization.Team{ID: team.ID})
+}
+
+func TestDeleteTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+	require.NoError(t, DeleteTeam(db.DefaultContext, team))
+	unittest.AssertNotExistsBean(t, &organization.Team{ID: team.ID})
+	unittest.AssertNotExistsBean(t, &organization.TeamRepo{TeamID: team.ID})
+	unittest.AssertNotExistsBean(t, &organization.TeamUser{TeamID: team.ID})
+
+	// check that team members don't have "leftover" access to repos
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+	accessMode, err := access_model.AccessLevel(db.DefaultContext, user, repo)
+	require.NoError(t, err)
+	assert.Less(t, accessMode, perm.AccessModeWrite)
+}
+
+func TestAddTeamMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID, userID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, AddTeamMember(db.DefaultContext, team, userID))
+		unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{UID: userID, TeamID: teamID})
+		unittest.CheckConsistencyFor(t, &organization.Team{ID: teamID}, &user_model.User{ID: team.OrgID})
+	}
+	test(1, 2)
+	test(1, 4)
+	test(3, 2)
+}
+
+func TestRemoveTeamMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(teamID, userID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, RemoveTeamMember(db.DefaultContext, team, userID))
+		unittest.AssertNotExistsBean(t, &organization.TeamUser{UID: userID, TeamID: teamID})
+		unittest.CheckConsistencyFor(t, &organization.Team{ID: teamID})
+	}
+	testSuccess(1, 4)
+	testSuccess(2, 2)
+	testSuccess(3, 2)
+	testSuccess(3, unittest.NonexistentID)
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 1})
+	err := RemoveTeamMember(db.DefaultContext, team, 2)
+	assert.True(t, organization.IsErrLastOrgOwner(err))
+}
+
+func TestRepository_RecalculateAccesses3(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	team5 := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 5})
+	user29 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 29})
+
+	has, err := db.GetEngine(db.DefaultContext).Get(&access_model.Access{UserID: 29, RepoID: 23})
+	require.NoError(t, err)
+	assert.False(t, has)
+
+	// adding user29 to team5 should add an explicit access row for repo 23
+	// even though repo 23 is public
+	require.NoError(t, AddTeamMember(db.DefaultContext, team5, user29.ID))
+
+	has, err = db.GetEngine(db.DefaultContext).Get(&access_model.Access{UserID: 29, RepoID: 23})
+	require.NoError(t, err)
+	assert.True(t, has)
+}
diff --git a/models/org_test.go b/models/org_test.go
new file mode 100644
index 0000000..bb5e524
--- /dev/null
+++ b/models/org_test.go
@@ -0,0 +1,62 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUser_RemoveMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+
+	// remove a user that is a member
+	unittest.AssertExistsAndLoadBean(t, &organization.OrgUser{UID: 4, OrgID: 3})
+	prevNumMembers := org.NumMembers
+	require.NoError(t, RemoveOrgUser(db.DefaultContext, org.ID, 4))
+	unittest.AssertNotExistsBean(t, &organization.OrgUser{UID: 4, OrgID: 3})
+	org = unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	assert.Equal(t, prevNumMembers-1, org.NumMembers)
+
+	// remove a user that is not a member
+	unittest.AssertNotExistsBean(t, &organization.OrgUser{UID: 5, OrgID: 3})
+	prevNumMembers = org.NumMembers
+	require.NoError(t, RemoveOrgUser(db.DefaultContext, org.ID, 5))
+	unittest.AssertNotExistsBean(t, &organization.OrgUser{UID: 5, OrgID: 3})
+	org = unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	assert.Equal(t, prevNumMembers, org.NumMembers)
+
+	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+}
+
+func TestRemoveOrgUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(orgID, userID int64) {
+		org := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: orgID})
+		expectedNumMembers := org.NumMembers
+		if unittest.BeanExists(t, &organization.OrgUser{OrgID: orgID, UID: userID}) {
+			expectedNumMembers--
+		}
+		require.NoError(t, RemoveOrgUser(db.DefaultContext, orgID, userID))
+		unittest.AssertNotExistsBean(t, &organization.OrgUser{OrgID: orgID, UID: userID})
+		org = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: orgID})
+		assert.EqualValues(t, expectedNumMembers, org.NumMembers)
+	}
+	testSuccess(3, 4)
+	testSuccess(3, 4)
+
+	err := RemoveOrgUser(db.DefaultContext, 7, 5)
+	require.Error(t, err)
+	assert.True(t, organization.IsErrLastOrgOwner(err))
+	unittest.AssertExistsAndLoadBean(t, &organization.OrgUser{OrgID: 7, UID: 5})
+	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+}
diff --git a/models/organization/TestInconsistentOwnerTeam/team.yml b/models/organization/TestInconsistentOwnerTeam/team.yml
new file mode 100644
index 0000000..90e3ad4
--- /dev/null
+++ b/models/organization/TestInconsistentOwnerTeam/team.yml
@@ -0,0 +1,10 @@
+-
+  id: 1000
+  org_id: 1000
+  lower_name: owners
+  name: Owners
+  authorize: 4 # owner
+  num_repos: 0
+  num_members: 0
+  includes_all_repositories: true
+  can_create_org_repo: true
diff --git a/models/organization/TestInconsistentOwnerTeam/team_unit.yml b/models/organization/TestInconsistentOwnerTeam/team_unit.yml
new file mode 100644
index 0000000..91e03d6
--- /dev/null
+++ b/models/organization/TestInconsistentOwnerTeam/team_unit.yml
@@ -0,0 +1,59 @@
+-
+  id: 1000
+  team_id: 1000
+  type: 1
+  access_mode: 0 # None
+
+-
+  id: 1001
+  team_id: 1000
+  type: 2
+  access_mode: 0
+
+-
+  id: 1002
+  team_id: 1000
+  type: 3
+  access_mode: 0
+
+-
+  id: 1003
+  team_id: 1000
+  type: 4
+  access_mode: 0
+
+-
+  id: 1004
+  team_id: 1000
+  type: 5
+  access_mode: 0
+
+-
+  id: 1005
+  team_id: 1000
+  type: 6
+  access_mode: 0
+
+-
+  id: 1006
+  team_id: 1000
+  type: 7
+  access_mode: 0
+
+-
+  id: 1007
+  team_id: 1000
+  type: 8
+  access_mode: 0
+
+-
+  id: 1008
+  team_id: 1000
+  type: 9
+  access_mode: 0
+
+-
+  id: 1009
+  team_id: 1000
+  type: 10
+  access_mode: 0
diff --git a/models/organization/main_test.go b/models/organization/main_test.go
new file mode 100644
index 0000000..c35898a
--- /dev/null
+++ b/models/organization/main_test.go
@@ -0,0 +1,21 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/organization"
+	_ "code.gitea.io/gitea/models/repo"
+	_ "code.gitea.io/gitea/models/user"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/organization/mini_org.go b/models/organization/mini_org.go
new file mode 100644
index 0000000..b1b2462
--- /dev/null
+++ b/models/organization/mini_org.go
@@ -0,0 +1,78 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+// MinimalOrg represents a simple organization with only the needed columns
+type MinimalOrg = Organization
+
+// GetUserOrgsList returns all organizations the given user has access to
+func GetUserOrgsList(ctx context.Context, user *user_model.User) ([]*MinimalOrg, error) {
+	schema, err := db.TableInfo(new(user_model.User))
+	if err != nil {
+		return nil, err
+	}
+
+	outputCols := []string{
+		"id",
+		"name",
+		"full_name",
+		"visibility",
+		"avatar",
+		"avatar_email",
+		"use_custom_avatar",
+	}
+
+	groupByCols := &strings.Builder{}
+	for _, col := range outputCols {
+		fmt.Fprintf(groupByCols, "`%s`.%s,", schema.Name, col)
+	}
+	groupByStr := groupByCols.String()
+	groupByStr = groupByStr[0 : len(groupByStr)-1]
+
+	sess := db.GetEngine(ctx)
+	sess = sess.Select(groupByStr+", count(distinct repo_id) as org_count").
+		Table("user").
+		Join("INNER", "team", "`team`.org_id = `user`.id").
+		Join("INNER", "team_user", "`team`.id = `team_user`.team_id").
+		Join("LEFT", builder.
+			Select("id as repo_id, owner_id as repo_owner_id").
+			From("repository").
+			Where(repo_model.AccessibleRepositoryCondition(user, unit.TypeInvalid)), "`repository`.repo_owner_id = `team`.org_id").
+		Where("`team_user`.uid = ?", user.ID).
+		GroupBy(groupByStr)
+
+	type OrgCount struct {
+		Organization `xorm:"extends"`
+		OrgCount     int
+	}
+
+	orgCounts := make([]*OrgCount, 0, 10)
+
+	if err := sess.
+		Asc("`user`.name").
+		Find(&orgCounts); err != nil {
+		return nil, err
+	}
+
+	orgs := make([]*MinimalOrg, len(orgCounts))
+	for i, orgCount := range orgCounts {
+		orgCount.Organization.NumRepos = orgCount.OrgCount
+		orgs[i] = &orgCount.Organization
+	}
+
+	return orgs, nil
+}
diff --git a/models/organization/org.go b/models/organization/org.go
new file mode 100644
index 0000000..379c30b
--- /dev/null
+++ b/models/organization/org.go
@@ -0,0 +1,833 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	secret_model "code.gitea.io/gitea/models/secret"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ________                            .__                __  .__
+// \_____  \_______  _________    ____ |__|____________ _/  |_|__| ____   ____
+//  /   |   \_  __ \/ ___\__  \  /    \|  \___   /\__  \\   __\  |/  _ \ /    \
+// /    |    \  | \/ /_/  > __ \|   |  \  |/    /  / __ \|  | |  (  <_> )   |  \
+// \_______  /__|  \___  (____  /___|  /__/_____ \(____  /__| |__|\____/|___|  /
+//         \/     /_____/     \/     \/         \/     \/                    \/
+
+// ErrOrgNotExist represents a "OrgNotExist" kind of error.
+type ErrOrgNotExist struct {
+	ID   int64
+	Name string
+}
+
+// IsErrOrgNotExist checks if an error is a ErrOrgNotExist.
+func IsErrOrgNotExist(err error) bool {
+	_, ok := err.(ErrOrgNotExist)
+	return ok
+}
+
+func (err ErrOrgNotExist) Error() string {
+	return fmt.Sprintf("org does not exist [id: %d, name: %s]", err.ID, err.Name)
+}
+
+func (err ErrOrgNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrLastOrgOwner represents a "LastOrgOwner" kind of error.
+type ErrLastOrgOwner struct {
+	UID int64
+}
+
+// IsErrLastOrgOwner checks if an error is a ErrLastOrgOwner.
+func IsErrLastOrgOwner(err error) bool {
+	_, ok := err.(ErrLastOrgOwner)
+	return ok
+}
+
+func (err ErrLastOrgOwner) Error() string {
+	return fmt.Sprintf("user is the last member of owner team [uid: %d]", err.UID)
+}
+
+// ErrUserNotAllowedCreateOrg represents a "UserNotAllowedCreateOrg" kind of error.
+type ErrUserNotAllowedCreateOrg struct{}
+
+// IsErrUserNotAllowedCreateOrg checks if an error is an ErrUserNotAllowedCreateOrg.
+func IsErrUserNotAllowedCreateOrg(err error) bool {
+	_, ok := err.(ErrUserNotAllowedCreateOrg)
+	return ok
+}
+
+func (err ErrUserNotAllowedCreateOrg) Error() string {
+	return "user is not allowed to create organizations"
+}
+
+func (err ErrUserNotAllowedCreateOrg) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// Organization represents an organization
+type Organization user_model.User
+
+// OrgFromUser converts user to organization
+func OrgFromUser(user *user_model.User) *Organization {
+	return (*Organization)(user)
+}
+
+// TableName represents the real table name of Organization
+func (Organization) TableName() string {
+	return "user"
+}
+
+// IsOwnedBy returns true if given user is in the owner team.
+func (org *Organization) IsOwnedBy(ctx context.Context, uid int64) (bool, error) {
+	return IsOrganizationOwner(ctx, org.ID, uid)
+}
+
+// IsOrgAdmin returns true if given user is in the owner team or an admin team.
+func (org *Organization) IsOrgAdmin(ctx context.Context, uid int64) (bool, error) {
+	return IsOrganizationAdmin(ctx, org.ID, uid)
+}
+
+// IsOrgMember returns true if given user is member of organization.
+func (org *Organization) IsOrgMember(ctx context.Context, uid int64) (bool, error) {
+	return IsOrganizationMember(ctx, org.ID, uid)
+}
+
+// CanCreateOrgRepo returns true if given user can create repo in organization
+func (org *Organization) CanCreateOrgRepo(ctx context.Context, uid int64) (bool, error) {
+	return CanCreateOrgRepo(ctx, org.ID, uid)
+}
+
+// GetTeam returns named team of organization.
+func (org *Organization) GetTeam(ctx context.Context, name string) (*Team, error) {
+	return GetTeam(ctx, org.ID, name)
+}
+
+// GetOwnerTeam returns owner team of organization.
+func (org *Organization) GetOwnerTeam(ctx context.Context) (*Team, error) {
+	return org.GetTeam(ctx, OwnerTeamName)
+}
+
+// FindOrgTeams returns all teams of a given organization
+func FindOrgTeams(ctx context.Context, orgID int64) ([]*Team, error) {
+	var teams []*Team
+	return teams, db.GetEngine(ctx).
+		Where("org_id=?", orgID).
+		OrderBy("CASE WHEN name LIKE '" + OwnerTeamName + "' THEN '' ELSE name END").
+		Find(&teams)
+}
+
+// LoadTeams load teams if not loaded.
+func (org *Organization) LoadTeams(ctx context.Context) ([]*Team, error) {
+	return FindOrgTeams(ctx, org.ID)
+}
+
+// GetMembers returns all members of organization.
+func (org *Organization) GetMembers(ctx context.Context) (user_model.UserList, map[int64]bool, error) {
+	return FindOrgMembers(ctx, &FindOrgMembersOpts{
+		OrgID: org.ID,
+	})
+}
+
+// HasMemberWithUserID returns true if user with userID is part of the u organisation.
+func (org *Organization) HasMemberWithUserID(ctx context.Context, userID int64) bool {
+	return org.hasMemberWithUserID(ctx, userID)
+}
+
+func (org *Organization) hasMemberWithUserID(ctx context.Context, userID int64) bool {
+	isMember, err := IsOrganizationMember(ctx, org.ID, userID)
+	if err != nil {
+		log.Error("IsOrganizationMember: %v", err)
+		return false
+	}
+	return isMember
+}
+
+// AvatarLink returns the full avatar link with http host
+func (org *Organization) AvatarLink(ctx context.Context) string {
+	return org.AsUser().AvatarLink(ctx)
+}
+
+// HTMLURL returns the organization's full link.
+func (org *Organization) HTMLURL() string {
+	return org.AsUser().HTMLURL()
+}
+
+// OrganisationLink returns the organization sub page link.
+func (org *Organization) OrganisationLink() string {
+	return org.AsUser().OrganisationLink()
+}
+
+// ShortName ellipses username to length
+func (org *Organization) ShortName(length int) string {
+	return org.AsUser().ShortName(length)
+}
+
+// HomeLink returns the user or organization home page link.
+func (org *Organization) HomeLink() string {
+	return org.AsUser().HomeLink()
+}
+
+// CanCreateRepo returns if user login can create a repository
+// NOTE: functions calling this assume a failure due to repository count limit; if new checks are added, those functions should be revised
+func (org *Organization) CanCreateRepo() bool {
+	return org.AsUser().CanCreateRepo()
+}
+
+// FindOrgMembersOpts represensts find org members conditions
+type FindOrgMembersOpts struct {
+	db.ListOptions
+	OrgID      int64
+	PublicOnly bool
+}
+
+// CountOrgMembers counts the organization's members
+func CountOrgMembers(ctx context.Context, opts *FindOrgMembersOpts) (int64, error) {
+	sess := db.GetEngine(ctx).Where("org_id=?", opts.OrgID)
+	if opts.PublicOnly {
+		sess.And("is_public = ?", true)
+	}
+	return sess.Count(new(OrgUser))
+}
+
+// FindOrgMembers loads organization members according conditions
+func FindOrgMembers(ctx context.Context, opts *FindOrgMembersOpts) (user_model.UserList, map[int64]bool, error) {
+	ous, err := GetOrgUsersByOrgID(ctx, opts)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	ids := make([]int64, len(ous))
+	idsIsPublic := make(map[int64]bool, len(ous))
+	for i, ou := range ous {
+		ids[i] = ou.UID
+		idsIsPublic[ou.UID] = ou.IsPublic
+	}
+
+	users, err := user_model.GetUsersByIDs(ctx, ids)
+	if err != nil {
+		return nil, nil, err
+	}
+	return users, idsIsPublic, nil
+}
+
+// AsUser returns the org as user object
+func (org *Organization) AsUser() *user_model.User {
+	return (*user_model.User)(org)
+}
+
+// DisplayName returns full name if it's not empty,
+// returns username otherwise.
+func (org *Organization) DisplayName() string {
+	return org.AsUser().DisplayName()
+}
+
+// CustomAvatarRelativePath returns user custom avatar relative path.
+func (org *Organization) CustomAvatarRelativePath() string {
+	return org.Avatar
+}
+
+// UnitPermission returns unit permission
+func (org *Organization) UnitPermission(ctx context.Context, doer *user_model.User, unitType unit.Type) perm.AccessMode {
+	if doer != nil {
+		teams, err := GetUserOrgTeams(ctx, org.ID, doer.ID)
+		if err != nil {
+			log.Error("GetUserOrgTeams: %v", err)
+			return perm.AccessModeNone
+		}
+
+		if err := teams.LoadUnits(ctx); err != nil {
+			log.Error("LoadUnits: %v", err)
+			return perm.AccessModeNone
+		}
+
+		if len(teams) > 0 {
+			return teams.UnitMaxAccess(unitType)
+		}
+	}
+
+	if org.Visibility.IsPublic() || (org.Visibility.IsLimited() && doer != nil) {
+		return perm.AccessModeRead
+	}
+
+	return perm.AccessModeNone
+}
+
+// CreateOrganization creates record of a new organization.
+func CreateOrganization(ctx context.Context, org *Organization, owner *user_model.User) (err error) {
+	if !owner.CanCreateOrganization() {
+		return ErrUserNotAllowedCreateOrg{}
+	}
+
+	if err = user_model.IsUsableUsername(org.Name); err != nil {
+		return err
+	}
+
+	isExist, err := user_model.IsUserExist(ctx, 0, org.Name)
+	if err != nil {
+		return err
+	} else if isExist {
+		return user_model.ErrUserAlreadyExist{Name: org.Name}
+	}
+
+	org.LowerName = strings.ToLower(org.Name)
+	if org.Rands, err = user_model.GetUserSalt(); err != nil {
+		return err
+	}
+	if org.Salt, err = user_model.GetUserSalt(); err != nil {
+		return err
+	}
+	org.UseCustomAvatar = true
+	org.MaxRepoCreation = -1
+	org.NumTeams = 1
+	org.NumMembers = 1
+	org.Type = user_model.UserTypeOrganization
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = user_model.DeleteUserRedirect(ctx, org.Name); err != nil {
+		return err
+	}
+
+	if err = db.Insert(ctx, org); err != nil {
+		return fmt.Errorf("insert organization: %w", err)
+	}
+	if err = user_model.GenerateRandomAvatar(ctx, org.AsUser()); err != nil {
+		return fmt.Errorf("generate random avatar: %w", err)
+	}
+
+	// Add initial creator to organization and owner team.
+	if err = db.Insert(ctx, &OrgUser{
+		UID:      owner.ID,
+		OrgID:    org.ID,
+		IsPublic: setting.Service.DefaultOrgMemberVisible,
+	}); err != nil {
+		return fmt.Errorf("insert org-user relation: %w", err)
+	}
+
+	// Create default owner team.
+	t := &Team{
+		OrgID:                   org.ID,
+		LowerName:               strings.ToLower(OwnerTeamName),
+		Name:                    OwnerTeamName,
+		AccessMode:              perm.AccessModeOwner,
+		NumMembers:              1,
+		IncludesAllRepositories: true,
+		CanCreateOrgRepo:        true,
+	}
+	if err = db.Insert(ctx, t); err != nil {
+		return fmt.Errorf("insert owner team: %w", err)
+	}
+
+	// insert units for team
+	units := make([]TeamUnit, 0, len(unit.AllRepoUnitTypes))
+	for _, tp := range unit.AllRepoUnitTypes {
+		up := perm.AccessModeOwner
+		if tp == unit.TypeExternalTracker || tp == unit.TypeExternalWiki {
+			up = perm.AccessModeRead
+		}
+		units = append(units, TeamUnit{
+			OrgID:      org.ID,
+			TeamID:     t.ID,
+			Type:       tp,
+			AccessMode: up,
+		})
+	}
+
+	if err = db.Insert(ctx, &units); err != nil {
+		return err
+	}
+
+	if err = db.Insert(ctx, &TeamUser{
+		UID:    owner.ID,
+		OrgID:  org.ID,
+		TeamID: t.ID,
+	}); err != nil {
+		return fmt.Errorf("insert team-user relation: %w", err)
+	}
+
+	return committer.Commit()
+}
+
+// GetOrgByName returns organization by given name.
+func GetOrgByName(ctx context.Context, name string) (*Organization, error) {
+	if len(name) == 0 {
+		return nil, ErrOrgNotExist{0, name}
+	}
+	u := &Organization{
+		LowerName: strings.ToLower(name),
+		Type:      user_model.UserTypeOrganization,
+	}
+	has, err := db.GetEngine(ctx).Get(u)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrOrgNotExist{0, name}
+	}
+	return u, nil
+}
+
+// DeleteOrganization deletes models associated to an organization.
+func DeleteOrganization(ctx context.Context, org *Organization) error {
+	if org.Type != user_model.UserTypeOrganization {
+		return fmt.Errorf("%s is a user not an organization", org.Name)
+	}
+
+	if err := db.DeleteBeans(ctx,
+		&Team{OrgID: org.ID},
+		&OrgUser{OrgID: org.ID},
+		&TeamUser{OrgID: org.ID},
+		&TeamUnit{OrgID: org.ID},
+		&TeamInvite{OrgID: org.ID},
+		&secret_model.Secret{OwnerID: org.ID},
+		&actions_model.ActionRunner{OwnerID: org.ID},
+		&actions_model.ActionRunnerToken{OwnerID: org.ID},
+	); err != nil {
+		return fmt.Errorf("DeleteBeans: %w", err)
+	}
+
+	if _, err := db.GetEngine(ctx).ID(org.ID).Delete(new(user_model.User)); err != nil {
+		return fmt.Errorf("Delete: %w", err)
+	}
+
+	return nil
+}
+
+// GetOrgUserMaxAuthorizeLevel returns highest authorize level of user in an organization
+func (org *Organization) GetOrgUserMaxAuthorizeLevel(ctx context.Context, uid int64) (perm.AccessMode, error) {
+	var authorize perm.AccessMode
+	_, err := db.GetEngine(ctx).
+		Select("max(team.authorize)").
+		Table("team").
+		Join("INNER", "team_user", "team_user.team_id = team.id").
+		Where("team_user.uid = ?", uid).
+		And("team_user.org_id = ?", org.ID).
+		Get(&authorize)
+	return authorize, err
+}
+
+// GetUsersWhoCanCreateOrgRepo returns users which are able to create repo in organization
+func GetUsersWhoCanCreateOrgRepo(ctx context.Context, orgID int64) (map[int64]*user_model.User, error) {
+	// Use a map, in order to de-duplicate users.
+	users := make(map[int64]*user_model.User)
+	return users, db.GetEngine(ctx).
+		Join("INNER", "`team_user`", "`team_user`.uid=`user`.id").
+		Join("INNER", "`team`", "`team`.id=`team_user`.team_id").
+		Where(builder.Eq{"team.can_create_org_repo": true}.Or(builder.Eq{"team.authorize": perm.AccessModeOwner})).
+		And("team_user.org_id = ?", orgID).Find(&users)
+}
+
+// SearchOrganizationsOptions options to filter organizations
+type SearchOrganizationsOptions struct {
+	db.ListOptions
+	All bool
+}
+
+// FindOrgOptions finds orgs options
+type FindOrgOptions struct {
+	db.ListOptions
+	UserID         int64
+	IncludePrivate bool
+}
+
+func queryUserOrgIDs(userID int64, includePrivate bool) *builder.Builder {
+	cond := builder.Eq{"uid": userID}
+	if !includePrivate {
+		cond["is_public"] = true
+	}
+	return builder.Select("org_id").From("org_user").Where(cond)
+}
+
+func (opts FindOrgOptions) ToConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{"`user`.`type`": user_model.UserTypeOrganization}
+	if opts.UserID > 0 {
+		cond = cond.And(builder.In("`user`.`id`", queryUserOrgIDs(opts.UserID, opts.IncludePrivate)))
+	}
+	if !opts.IncludePrivate {
+		cond = cond.And(builder.Eq{"`user`.visibility": structs.VisibleTypePublic})
+	}
+	return cond
+}
+
+func (opts FindOrgOptions) ToOrders() string {
+	return "`user`.name ASC"
+}
+
+// HasOrgOrUserVisible tells if the given user can see the given org or user
+func HasOrgOrUserVisible(ctx context.Context, orgOrUser, user *user_model.User) bool {
+	// If user is nil, it's an anonymous user/request.
+	// The Ghost user is handled like an anonymous user.
+	if user == nil || user.IsGhost() {
+		return orgOrUser.Visibility == structs.VisibleTypePublic
+	}
+
+	if user.IsAdmin || orgOrUser.ID == user.ID {
+		return true
+	}
+
+	if (orgOrUser.Visibility == structs.VisibleTypePrivate || user.IsRestricted) && !OrgFromUser(orgOrUser).hasMemberWithUserID(ctx, user.ID) {
+		return false
+	}
+	return true
+}
+
+// HasOrgsVisible tells if the given user can see at least one of the orgs provided
+func HasOrgsVisible(ctx context.Context, orgs []*Organization, user *user_model.User) bool {
+	if len(orgs) == 0 {
+		return false
+	}
+
+	for _, org := range orgs {
+		if HasOrgOrUserVisible(ctx, org.AsUser(), user) {
+			return true
+		}
+	}
+	return false
+}
+
+// GetOrgsCanCreateRepoByUserID returns a list of organizations where given user ID
+// are allowed to create repos.
+func GetOrgsCanCreateRepoByUserID(ctx context.Context, userID int64) ([]*Organization, error) {
+	orgs := make([]*Organization, 0, 10)
+
+	return orgs, db.GetEngine(ctx).Where(builder.In("id", builder.Select("`user`.id").From("`user`").
+		Join("INNER", "`team_user`", "`team_user`.org_id = `user`.id").
+		Join("INNER", "`team`", "`team`.id = `team_user`.team_id").
+		Where(builder.Eq{"`team_user`.uid": userID}).
+		And(builder.Eq{"`team`.authorize": perm.AccessModeOwner}.Or(builder.Eq{"`team`.can_create_org_repo": true})))).
+		Asc("`user`.name").
+		Find(&orgs)
+}
+
+// GetOrgUsersByOrgID returns all organization-user relations by organization ID.
+func GetOrgUsersByOrgID(ctx context.Context, opts *FindOrgMembersOpts) ([]*OrgUser, error) {
+	sess := db.GetEngine(ctx).Where("org_id=?", opts.OrgID)
+	if opts.PublicOnly {
+		sess.And("is_public = ?", true)
+	}
+	if opts.ListOptions.PageSize > 0 {
+		sess = db.SetSessionPagination(sess, opts)
+
+		ous := make([]*OrgUser, 0, opts.PageSize)
+		return ous, sess.Find(&ous)
+	}
+
+	var ous []*OrgUser
+	return ous, sess.Find(&ous)
+}
+
+// ChangeOrgUserStatus changes public or private membership status.
+func ChangeOrgUserStatus(ctx context.Context, orgID, uid int64, public bool) error {
+	ou := new(OrgUser)
+	has, err := db.GetEngine(ctx).
+		Where("uid=?", uid).
+		And("org_id=?", orgID).
+		Get(ou)
+	if err != nil {
+		return err
+	} else if !has {
+		return nil
+	}
+
+	ou.IsPublic = public
+	_, err = db.GetEngine(ctx).ID(ou.ID).Cols("is_public").Update(ou)
+	return err
+}
+
+// AddOrgUser adds new user to given organization.
+func AddOrgUser(ctx context.Context, orgID, uid int64) error {
+	isAlreadyMember, err := IsOrganizationMember(ctx, orgID, uid)
+	if err != nil || isAlreadyMember {
+		return err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// check in transaction
+	isAlreadyMember, err = IsOrganizationMember(ctx, orgID, uid)
+	if err != nil || isAlreadyMember {
+		return err
+	}
+
+	ou := &OrgUser{
+		UID:      uid,
+		OrgID:    orgID,
+		IsPublic: setting.Service.DefaultOrgMemberVisible,
+	}
+
+	if err := db.Insert(ctx, ou); err != nil {
+		return err
+	} else if _, err = db.Exec(ctx, "UPDATE `user` SET num_members = num_members + 1 WHERE id = ?", orgID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// GetOrgByID returns the user object by given ID if exists.
+func GetOrgByID(ctx context.Context, id int64) (*Organization, error) {
+	u := new(Organization)
+	has, err := db.GetEngine(ctx).ID(id).Get(u)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, user_model.ErrUserNotExist{
+			UID: id,
+		}
+	}
+	return u, nil
+}
+
+// RemoveOrgRepo removes all team-repository relations of organization.
+func RemoveOrgRepo(ctx context.Context, orgID, repoID int64) error {
+	teamRepos := make([]*TeamRepo, 0, 10)
+	e := db.GetEngine(ctx)
+	if err := e.Find(&teamRepos, &TeamRepo{OrgID: orgID, RepoID: repoID}); err != nil {
+		return err
+	}
+
+	if len(teamRepos) == 0 {
+		return nil
+	}
+
+	if _, err := e.Delete(&TeamRepo{
+		OrgID:  orgID,
+		RepoID: repoID,
+	}); err != nil {
+		return err
+	}
+
+	teamIDs := make([]int64, len(teamRepos))
+	for i, teamRepo := range teamRepos {
+		teamIDs[i] = teamRepo.TeamID
+	}
+
+	_, err := e.Decr("num_repos").In("id", teamIDs).Update(new(Team))
+	return err
+}
+
+func (org *Organization) getUserTeams(ctx context.Context, userID int64, cols ...string) ([]*Team, error) {
+	teams := make([]*Team, 0, org.NumTeams)
+	return teams, db.GetEngine(ctx).
+		Where("`team_user`.org_id = ?", org.ID).
+		Join("INNER", "team_user", "`team_user`.team_id = team.id").
+		Join("INNER", "`user`", "`user`.id=team_user.uid").
+		And("`team_user`.uid = ?", userID).
+		Asc("`user`.name").
+		Cols(cols...).
+		Find(&teams)
+}
+
+func (org *Organization) getUserTeamIDs(ctx context.Context, userID int64) ([]int64, error) {
+	teamIDs := make([]int64, 0, org.NumTeams)
+	return teamIDs, db.GetEngine(ctx).
+		Table("team").
+		Cols("team.id").
+		Where("`team_user`.org_id = ?", org.ID).
+		Join("INNER", "team_user", "`team_user`.team_id = team.id").
+		And("`team_user`.uid = ?", userID).
+		Find(&teamIDs)
+}
+
+// TeamsWithAccessToRepo returns all teams that have given access level to the repository.
+func (org *Organization) TeamsWithAccessToRepo(ctx context.Context, repoID int64, mode perm.AccessMode) ([]*Team, error) {
+	return GetTeamsWithAccessToRepo(ctx, org.ID, repoID, mode)
+}
+
+// GetUserTeamIDs returns of all team IDs of the organization that user is member of.
+func (org *Organization) GetUserTeamIDs(ctx context.Context, userID int64) ([]int64, error) {
+	return org.getUserTeamIDs(ctx, userID)
+}
+
+// GetUserTeams returns all teams that belong to user,
+// and that the user has joined.
+func (org *Organization) GetUserTeams(ctx context.Context, userID int64) ([]*Team, error) {
+	return org.getUserTeams(ctx, userID)
+}
+
+// AccessibleReposEnvironment operations involving the repositories that are
+// accessible to a particular user
+type AccessibleReposEnvironment interface {
+	CountRepos() (int64, error)
+	RepoIDs(page, pageSize int) ([]int64, error)
+	Repos(page, pageSize int) (repo_model.RepositoryList, error)
+	MirrorRepos() (repo_model.RepositoryList, error)
+	AddKeyword(keyword string)
+	SetSort(db.SearchOrderBy)
+}
+
+type accessibleReposEnv struct {
+	org     *Organization
+	user    *user_model.User
+	team    *Team
+	teamIDs []int64
+	ctx     context.Context
+	keyword string
+	orderBy db.SearchOrderBy
+}
+
+// AccessibleReposEnv builds an AccessibleReposEnvironment for the repositories in `org`
+// that are accessible to the specified user.
+func AccessibleReposEnv(ctx context.Context, org *Organization, userID int64) (AccessibleReposEnvironment, error) {
+	var user *user_model.User
+
+	if userID > 0 {
+		u, err := user_model.GetUserByID(ctx, userID)
+		if err != nil {
+			return nil, err
+		}
+		user = u
+	}
+
+	teamIDs, err := org.getUserTeamIDs(ctx, userID)
+	if err != nil {
+		return nil, err
+	}
+	return &accessibleReposEnv{
+		org:     org,
+		user:    user,
+		teamIDs: teamIDs,
+		ctx:     ctx,
+		orderBy: db.SearchOrderByRecentUpdated,
+	}, nil
+}
+
+// AccessibleTeamReposEnv an AccessibleReposEnvironment for the repositories in `org`
+// that are accessible to the specified team.
+func (org *Organization) AccessibleTeamReposEnv(ctx context.Context, team *Team) AccessibleReposEnvironment {
+	return &accessibleReposEnv{
+		org:     org,
+		team:    team,
+		ctx:     ctx,
+		orderBy: db.SearchOrderByRecentUpdated,
+	}
+}
+
+func (env *accessibleReposEnv) cond() builder.Cond {
+	cond := builder.NewCond()
+	if env.team != nil {
+		cond = cond.And(builder.Eq{"team_repo.team_id": env.team.ID})
+	} else {
+		if env.user == nil || !env.user.IsRestricted {
+			cond = cond.Or(builder.Eq{
+				"`repository`.owner_id":   env.org.ID,
+				"`repository`.is_private": false,
+			})
+		}
+		if len(env.teamIDs) > 0 {
+			cond = cond.Or(builder.In("team_repo.team_id", env.teamIDs))
+		}
+	}
+	if env.keyword != "" {
+		cond = cond.And(builder.Like{"`repository`.lower_name", strings.ToLower(env.keyword)})
+	}
+	return cond
+}
+
+func (env *accessibleReposEnv) CountRepos() (int64, error) {
+	repoCount, err := db.GetEngine(env.ctx).
+		Join("INNER", "team_repo", "`team_repo`.repo_id=`repository`.id").
+		Where(env.cond()).
+		Distinct("`repository`.id").
+		Count(&repo_model.Repository{})
+	if err != nil {
+		return 0, fmt.Errorf("count user repositories in organization: %w", err)
+	}
+	return repoCount, nil
+}
+
+func (env *accessibleReposEnv) RepoIDs(page, pageSize int) ([]int64, error) {
+	if page <= 0 {
+		page = 1
+	}
+
+	repoIDs := make([]int64, 0, pageSize)
+	return repoIDs, db.GetEngine(env.ctx).
+		Table("repository").
+		Join("INNER", "team_repo", "`team_repo`.repo_id=`repository`.id").
+		Where(env.cond()).
+		GroupBy("`repository`.id,`repository`."+strings.Fields(string(env.orderBy))[0]).
+		OrderBy(string(env.orderBy)).
+		Limit(pageSize, (page-1)*pageSize).
+		Cols("`repository`.id").
+		Find(&repoIDs)
+}
+
+func (env *accessibleReposEnv) Repos(page, pageSize int) (repo_model.RepositoryList, error) {
+	repoIDs, err := env.RepoIDs(page, pageSize)
+	if err != nil {
+		return nil, fmt.Errorf("GetUserRepositoryIDs: %w", err)
+	}
+
+	repos := make([]*repo_model.Repository, 0, len(repoIDs))
+	if len(repoIDs) == 0 {
+		return repos, nil
+	}
+
+	return repos, db.GetEngine(env.ctx).
+		In("`repository`.id", repoIDs).
+		OrderBy(string(env.orderBy)).
+		Find(&repos)
+}
+
+func (env *accessibleReposEnv) MirrorRepoIDs() ([]int64, error) {
+	repoIDs := make([]int64, 0, 10)
+	return repoIDs, db.GetEngine(env.ctx).
+		Table("repository").
+		Join("INNER", "team_repo", "`team_repo`.repo_id=`repository`.id AND `repository`.is_mirror=?", true).
+		Where(env.cond()).
+		GroupBy("`repository`.id, `repository`.updated_unix").
+		OrderBy(string(env.orderBy)).
+		Cols("`repository`.id").
+		Find(&repoIDs)
+}
+
+func (env *accessibleReposEnv) MirrorRepos() (repo_model.RepositoryList, error) {
+	repoIDs, err := env.MirrorRepoIDs()
+	if err != nil {
+		return nil, fmt.Errorf("MirrorRepoIDs: %w", err)
+	}
+
+	repos := make([]*repo_model.Repository, 0, len(repoIDs))
+	if len(repoIDs) == 0 {
+		return repos, nil
+	}
+
+	return repos, db.GetEngine(env.ctx).
+		In("`repository`.id", repoIDs).
+		Find(&repos)
+}
+
+func (env *accessibleReposEnv) AddKeyword(keyword string) {
+	env.keyword = keyword
+}
+
+func (env *accessibleReposEnv) SetSort(orderBy db.SearchOrderBy) {
+	env.orderBy = orderBy
+}
diff --git a/models/organization/org_repo.go b/models/organization/org_repo.go
new file mode 100644
index 0000000..f7e5992
--- /dev/null
+++ b/models/organization/org_repo.go
@@ -0,0 +1,17 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+)
+
+// GetOrgRepositories get repos belonging to the given organization
+func GetOrgRepositories(ctx context.Context, orgID int64) (repo_model.RepositoryList, error) {
+	var orgRepos []*repo_model.Repository
+	return orgRepos, db.GetEngine(ctx).Where("owner_id = ?", orgID).Find(&orgRepos)
+}
diff --git a/models/organization/org_test.go b/models/organization/org_test.go
new file mode 100644
index 0000000..21d954b
--- /dev/null
+++ b/models/organization/org_test.go
@@ -0,0 +1,548 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/structs"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUser_IsOwnedBy(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	for _, testCase := range []struct {
+		OrgID         int64
+		UserID        int64
+		ExpectedOwner bool
+	}{
+		{3, 2, true},
+		{3, 1, false},
+		{3, 3, false},
+		{3, 4, false},
+		{2, 2, false}, // user2 is not an organization
+		{2, 3, false},
+	} {
+		org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: testCase.OrgID})
+		isOwner, err := org.IsOwnedBy(db.DefaultContext, testCase.UserID)
+		require.NoError(t, err)
+		assert.Equal(t, testCase.ExpectedOwner, isOwner)
+	}
+}
+
+func TestUser_IsOrgMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	for _, testCase := range []struct {
+		OrgID          int64
+		UserID         int64
+		ExpectedMember bool
+	}{
+		{3, 2, true},
+		{3, 4, true},
+		{3, 1, false},
+		{3, 3, false},
+		{2, 2, false}, // user2 is not an organization
+		{2, 3, false},
+	} {
+		org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: testCase.OrgID})
+		isMember, err := org.IsOrgMember(db.DefaultContext, testCase.UserID)
+		require.NoError(t, err)
+		assert.Equal(t, testCase.ExpectedMember, isMember)
+	}
+}
+
+func TestUser_GetTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	team, err := org.GetTeam(db.DefaultContext, "team1")
+	require.NoError(t, err)
+	assert.Equal(t, org.ID, team.OrgID)
+	assert.Equal(t, "team1", team.LowerName)
+
+	_, err = org.GetTeam(db.DefaultContext, "does not exist")
+	assert.True(t, organization.IsErrTeamNotExist(err))
+
+	nonOrg := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 2})
+	_, err = nonOrg.GetTeam(db.DefaultContext, "team")
+	assert.True(t, organization.IsErrTeamNotExist(err))
+}
+
+func TestUser_GetOwnerTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	team, err := org.GetOwnerTeam(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, org.ID, team.OrgID)
+
+	nonOrg := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 2})
+	_, err = nonOrg.GetOwnerTeam(db.DefaultContext)
+	assert.True(t, organization.IsErrTeamNotExist(err))
+}
+
+func TestUser_GetTeams(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	teams, err := org.LoadTeams(db.DefaultContext)
+	require.NoError(t, err)
+	if assert.Len(t, teams, 5) {
+		assert.Equal(t, int64(1), teams[0].ID)
+		assert.Equal(t, int64(2), teams[1].ID)
+		assert.Equal(t, int64(12), teams[2].ID)
+		assert.Equal(t, int64(14), teams[3].ID)
+		assert.Equal(t, int64(7), teams[4].ID)
+	}
+}
+
+func TestUser_GetMembers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	members, _, err := org.GetMembers(db.DefaultContext)
+	require.NoError(t, err)
+	if assert.Len(t, members, 3) {
+		assert.Equal(t, int64(2), members[0].ID)
+		assert.Equal(t, int64(28), members[1].ID)
+		assert.Equal(t, int64(4), members[2].ID)
+	}
+}
+
+func TestGetOrgByName(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	org, err := organization.GetOrgByName(db.DefaultContext, "org3")
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, org.ID)
+	assert.Equal(t, "org3", org.Name)
+
+	_, err = organization.GetOrgByName(db.DefaultContext, "user2") // user2 is an individual
+	assert.True(t, organization.IsErrOrgNotExist(err))
+
+	_, err = organization.GetOrgByName(db.DefaultContext, "") // corner case
+	assert.True(t, organization.IsErrOrgNotExist(err))
+}
+
+func TestCountOrganizations(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	expected, err := db.GetEngine(db.DefaultContext).Where("type=?", user_model.UserTypeOrganization).Count(&organization.Organization{})
+	require.NoError(t, err)
+	cnt, err := db.Count[organization.Organization](db.DefaultContext, organization.FindOrgOptions{IncludePrivate: true})
+	require.NoError(t, err)
+	assert.Equal(t, expected, cnt)
+}
+
+func TestIsOrganizationOwner(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(orgID, userID int64, expected bool) {
+		isOwner, err := organization.IsOrganizationOwner(db.DefaultContext, orgID, userID)
+		require.NoError(t, err)
+		assert.EqualValues(t, expected, isOwner)
+	}
+	test(3, 2, true)
+	test(3, 3, false)
+	test(6, 5, true)
+	test(6, 4, false)
+	test(unittest.NonexistentID, unittest.NonexistentID, false)
+}
+
+func TestIsOrganizationMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(orgID, userID int64, expected bool) {
+		isMember, err := organization.IsOrganizationMember(db.DefaultContext, orgID, userID)
+		require.NoError(t, err)
+		assert.EqualValues(t, expected, isMember)
+	}
+	test(3, 2, true)
+	test(3, 3, false)
+	test(3, 4, true)
+	test(6, 5, true)
+	test(6, 4, false)
+	test(unittest.NonexistentID, unittest.NonexistentID, false)
+}
+
+func TestIsPublicMembership(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(orgID, userID int64, expected bool) {
+		isMember, err := organization.IsPublicMembership(db.DefaultContext, orgID, userID)
+		require.NoError(t, err)
+		assert.EqualValues(t, expected, isMember)
+	}
+	test(3, 2, true)
+	test(3, 3, false)
+	test(3, 4, false)
+	test(6, 5, true)
+	test(6, 4, false)
+	test(unittest.NonexistentID, unittest.NonexistentID, false)
+}
+
+func TestFindOrgs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	orgs, err := db.Find[organization.Organization](db.DefaultContext, organization.FindOrgOptions{
+		UserID:         4,
+		IncludePrivate: true,
+	})
+	require.NoError(t, err)
+	if assert.Len(t, orgs, 1) {
+		assert.EqualValues(t, 3, orgs[0].ID)
+	}
+
+	orgs, err = db.Find[organization.Organization](db.DefaultContext, organization.FindOrgOptions{
+		UserID:         4,
+		IncludePrivate: false,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, orgs)
+
+	total, err := db.Count[organization.Organization](db.DefaultContext, organization.FindOrgOptions{
+		UserID:         4,
+		IncludePrivate: true,
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, total)
+}
+
+func TestGetOrgUsersByOrgID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	orgUsers, err := organization.GetOrgUsersByOrgID(db.DefaultContext, &organization.FindOrgMembersOpts{
+		ListOptions: db.ListOptions{},
+		OrgID:       3,
+		PublicOnly:  false,
+	})
+	require.NoError(t, err)
+	if assert.Len(t, orgUsers, 3) {
+		assert.Equal(t, organization.OrgUser{
+			ID:       orgUsers[0].ID,
+			OrgID:    3,
+			UID:      2,
+			IsPublic: true,
+		}, *orgUsers[0])
+		assert.Equal(t, organization.OrgUser{
+			ID:       orgUsers[1].ID,
+			OrgID:    3,
+			UID:      4,
+			IsPublic: false,
+		}, *orgUsers[1])
+		assert.Equal(t, organization.OrgUser{
+			ID:       orgUsers[2].ID,
+			OrgID:    3,
+			UID:      28,
+			IsPublic: true,
+		}, *orgUsers[2])
+	}
+
+	orgUsers, err = organization.GetOrgUsersByOrgID(db.DefaultContext, &organization.FindOrgMembersOpts{
+		ListOptions: db.ListOptions{},
+		OrgID:       unittest.NonexistentID,
+		PublicOnly:  false,
+	})
+	require.NoError(t, err)
+	assert.Empty(t, orgUsers)
+}
+
+func TestChangeOrgUserStatus(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(orgID, userID int64, public bool) {
+		require.NoError(t, organization.ChangeOrgUserStatus(db.DefaultContext, orgID, userID, public))
+		orgUser := unittest.AssertExistsAndLoadBean(t, &organization.OrgUser{OrgID: orgID, UID: userID})
+		assert.Equal(t, public, orgUser.IsPublic)
+	}
+
+	testSuccess(3, 2, false)
+	testSuccess(3, 2, false)
+	testSuccess(3, 4, true)
+	require.NoError(t, organization.ChangeOrgUserStatus(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID, true))
+}
+
+func TestUser_GetUserTeamIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	testSuccess := func(userID int64, expected []int64) {
+		teamIDs, err := org.GetUserTeamIDs(db.DefaultContext, userID)
+		require.NoError(t, err)
+		assert.Equal(t, expected, teamIDs)
+	}
+	testSuccess(2, []int64{1, 2, 14})
+	testSuccess(4, []int64{2})
+	testSuccess(unittest.NonexistentID, []int64{})
+}
+
+func TestAccessibleReposEnv_CountRepos(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	testSuccess := func(userID, expectedCount int64) {
+		env, err := organization.AccessibleReposEnv(db.DefaultContext, org, userID)
+		require.NoError(t, err)
+		count, err := env.CountRepos()
+		require.NoError(t, err)
+		assert.EqualValues(t, expectedCount, count)
+	}
+	testSuccess(2, 3)
+	testSuccess(4, 2)
+}
+
+func TestAccessibleReposEnv_RepoIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	testSuccess := func(userID int64, expectedRepoIDs []int64) {
+		env, err := organization.AccessibleReposEnv(db.DefaultContext, org, userID)
+		require.NoError(t, err)
+		repoIDs, err := env.RepoIDs(1, 100)
+		require.NoError(t, err)
+		assert.Equal(t, expectedRepoIDs, repoIDs)
+	}
+	testSuccess(2, []int64{32, 5, 3})
+	testSuccess(4, []int64{32, 3})
+}
+
+func TestAccessibleReposEnv_Repos(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	testSuccess := func(userID int64, expectedRepoIDs []int64) {
+		env, err := organization.AccessibleReposEnv(db.DefaultContext, org, userID)
+		require.NoError(t, err)
+		repos, err := env.Repos(1, 100)
+		require.NoError(t, err)
+		expectedRepos := make(repo_model.RepositoryList, len(expectedRepoIDs))
+		for i, repoID := range expectedRepoIDs {
+			expectedRepos[i] = unittest.AssertExistsAndLoadBean(t,
+				&repo_model.Repository{ID: repoID})
+		}
+		assert.Equal(t, expectedRepos, repos)
+	}
+	testSuccess(2, []int64{32, 5, 3})
+	testSuccess(4, []int64{32, 3})
+}
+
+func TestAccessibleReposEnv_MirrorRepos(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	testSuccess := func(userID int64, expectedRepoIDs []int64) {
+		env, err := organization.AccessibleReposEnv(db.DefaultContext, org, userID)
+		require.NoError(t, err)
+		repos, err := env.MirrorRepos()
+		require.NoError(t, err)
+		expectedRepos := make(repo_model.RepositoryList, len(expectedRepoIDs))
+		for i, repoID := range expectedRepoIDs {
+			expectedRepos[i] = unittest.AssertExistsAndLoadBean(t,
+				&repo_model.Repository{ID: repoID})
+		}
+		assert.Equal(t, expectedRepos, repos)
+	}
+	testSuccess(2, []int64{5})
+	testSuccess(4, []int64{})
+}
+
+func TestHasOrgVisibleTypePublic(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+
+	const newOrgName = "test-org-public"
+	org := &organization.Organization{
+		Name:       newOrgName,
+		Visibility: structs.VisibleTypePublic,
+	}
+
+	unittest.AssertNotExistsBean(t, &user_model.User{Name: org.Name, Type: user_model.UserTypeOrganization})
+	require.NoError(t, organization.CreateOrganization(db.DefaultContext, org, owner))
+	org = unittest.AssertExistsAndLoadBean(t,
+		&organization.Organization{Name: org.Name, Type: user_model.UserTypeOrganization})
+	test1 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), owner)
+	test2 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), org3)
+	test3 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), nil)
+	assert.True(t, test1) // owner of org
+	assert.True(t, test2) // user not a part of org
+	assert.True(t, test3) // logged out user
+}
+
+func TestHasOrgVisibleTypeLimited(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+
+	const newOrgName = "test-org-limited"
+	org := &organization.Organization{
+		Name:       newOrgName,
+		Visibility: structs.VisibleTypeLimited,
+	}
+
+	unittest.AssertNotExistsBean(t, &user_model.User{Name: org.Name, Type: user_model.UserTypeOrganization})
+	require.NoError(t, organization.CreateOrganization(db.DefaultContext, org, owner))
+	org = unittest.AssertExistsAndLoadBean(t,
+		&organization.Organization{Name: org.Name, Type: user_model.UserTypeOrganization})
+	test1 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), owner)
+	test2 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), org3)
+	test3 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), nil)
+	assert.True(t, test1)  // owner of org
+	assert.True(t, test2)  // user not a part of org
+	assert.False(t, test3) // logged out user
+}
+
+func TestHasOrgVisibleTypePrivate(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+
+	const newOrgName = "test-org-private"
+	org := &organization.Organization{
+		Name:       newOrgName,
+		Visibility: structs.VisibleTypePrivate,
+	}
+
+	unittest.AssertNotExistsBean(t, &user_model.User{Name: org.Name, Type: user_model.UserTypeOrganization})
+	require.NoError(t, organization.CreateOrganization(db.DefaultContext, org, owner))
+	org = unittest.AssertExistsAndLoadBean(t,
+		&organization.Organization{Name: org.Name, Type: user_model.UserTypeOrganization})
+	test1 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), owner)
+	test2 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), org3)
+	test3 := organization.HasOrgOrUserVisible(db.DefaultContext, org.AsUser(), nil)
+	assert.True(t, test1)  // owner of org
+	assert.False(t, test2) // user not a part of org
+	assert.False(t, test3) // logged out user
+}
+
+func TestGetUsersWhoCanCreateOrgRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	users, err := organization.GetUsersWhoCanCreateOrgRepo(db.DefaultContext, 3)
+	require.NoError(t, err)
+	assert.Len(t, users, 2)
+	var ids []int64
+	for i := range users {
+		ids = append(ids, users[i].ID)
+	}
+	assert.ElementsMatch(t, ids, []int64{2, 28})
+
+	users, err = organization.GetUsersWhoCanCreateOrgRepo(db.DefaultContext, 7)
+	require.NoError(t, err)
+	assert.Len(t, users, 1)
+	assert.NotNil(t, users[5])
+}
+
+func TestUser_RemoveOrgRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	org := unittest.AssertExistsAndLoadBean(t, &organization.Organization{ID: 3})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{OwnerID: org.ID})
+
+	// remove a repo that does belong to org
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamRepo{RepoID: repo.ID, OrgID: org.ID})
+	require.NoError(t, organization.RemoveOrgRepo(db.DefaultContext, org.ID, repo.ID))
+	unittest.AssertNotExistsBean(t, &organization.TeamRepo{RepoID: repo.ID, OrgID: org.ID})
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repo.ID}) // repo should still exist
+
+	// remove a repo that does not belong to org
+	require.NoError(t, organization.RemoveOrgRepo(db.DefaultContext, org.ID, repo.ID))
+	unittest.AssertNotExistsBean(t, &organization.TeamRepo{RepoID: repo.ID, OrgID: org.ID})
+
+	require.NoError(t, organization.RemoveOrgRepo(db.DefaultContext, org.ID, unittest.NonexistentID))
+
+	unittest.CheckConsistencyFor(t,
+		&user_model.User{ID: org.ID},
+		&organization.Team{OrgID: org.ID},
+		&repo_model.Repository{ID: repo.ID})
+}
+
+func TestCreateOrganization(t *testing.T) {
+	// successful creation of org
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	const newOrgName = "neworg"
+	org := &organization.Organization{
+		Name: newOrgName,
+	}
+
+	unittest.AssertNotExistsBean(t, &user_model.User{Name: newOrgName, Type: user_model.UserTypeOrganization})
+	require.NoError(t, organization.CreateOrganization(db.DefaultContext, org, owner))
+	org = unittest.AssertExistsAndLoadBean(t,
+		&organization.Organization{Name: newOrgName, Type: user_model.UserTypeOrganization})
+	ownerTeam := unittest.AssertExistsAndLoadBean(t,
+		&organization.Team{Name: organization.OwnerTeamName, OrgID: org.ID})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{UID: owner.ID, TeamID: ownerTeam.ID})
+	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+}
+
+func TestCreateOrganization2(t *testing.T) {
+	// unauthorized creation of org
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 5})
+	const newOrgName = "neworg"
+	org := &organization.Organization{
+		Name: newOrgName,
+	}
+
+	unittest.AssertNotExistsBean(t, &organization.Organization{Name: newOrgName, Type: user_model.UserTypeOrganization})
+	err := organization.CreateOrganization(db.DefaultContext, org, owner)
+	require.Error(t, err)
+	assert.True(t, organization.IsErrUserNotAllowedCreateOrg(err))
+	unittest.AssertNotExistsBean(t, &organization.Organization{Name: newOrgName, Type: user_model.UserTypeOrganization})
+	unittest.CheckConsistencyFor(t, &organization.Organization{}, &organization.Team{})
+}
+
+func TestCreateOrganization3(t *testing.T) {
+	// create org with same name as existent org
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	org := &organization.Organization{Name: "org3"}                       // should already exist
+	unittest.AssertExistsAndLoadBean(t, &user_model.User{Name: org.Name}) // sanity check
+	err := organization.CreateOrganization(db.DefaultContext, org, owner)
+	require.Error(t, err)
+	assert.True(t, user_model.IsErrUserAlreadyExist(err))
+	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+}
+
+func TestCreateOrganization4(t *testing.T) {
+	// create org with unusable name
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	err := organization.CreateOrganization(db.DefaultContext, &organization.Organization{Name: "assets"}, owner)
+	require.Error(t, err)
+	assert.True(t, db.IsErrNameReserved(err))
+	unittest.CheckConsistencyFor(t, &organization.Organization{}, &organization.Team{})
+}
+
+func TestUnitPermission(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	publicOrg := &organization.Organization{ID: 1001, Visibility: structs.VisibleTypePublic}
+	limitedOrg := &organization.Organization{ID: 1001, Visibility: structs.VisibleTypeLimited}
+	privateOrg := &organization.Organization{ID: 1001, Visibility: structs.VisibleTypePrivate}
+	user := &user_model.User{ID: 1001}
+	t.Run("Anonymous", func(t *testing.T) {
+		t.Run("Public", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeRead, publicOrg.UnitPermission(db.DefaultContext, nil, unit.TypeCode))
+		})
+		t.Run("Limited", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeNone, limitedOrg.UnitPermission(db.DefaultContext, nil, unit.TypeCode))
+		})
+		t.Run("Private", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeNone, privateOrg.UnitPermission(db.DefaultContext, nil, unit.TypeCode))
+		})
+	})
+
+	t.Run("Logged in", func(t *testing.T) {
+		t.Run("Public", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeRead, publicOrg.UnitPermission(db.DefaultContext, user, unit.TypeCode))
+		})
+		t.Run("Limited", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeRead, limitedOrg.UnitPermission(db.DefaultContext, user, unit.TypeCode))
+		})
+		t.Run("Private", func(t *testing.T) {
+			assert.EqualValues(t, perm.AccessModeNone, privateOrg.UnitPermission(db.DefaultContext, user, unit.TypeCode))
+		})
+	})
+}
diff --git a/models/organization/org_user.go b/models/organization/org_user.go
new file mode 100644
index 0000000..5fe3a17
--- /dev/null
+++ b/models/organization/org_user.go
@@ -0,0 +1,138 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+
+	"xorm.io/builder"
+)
+
+// ________                ____ ___
+// \_____  \_______  ____ |    |   \______ ___________
+//  /   |   \_  __ \/ ___\|    |   /  ___// __ \_  __ \
+// /    |    \  | \/ /_/  >    |  /\___ \\  ___/|  | \/
+// \_______  /__|  \___  /|______//____  >\___  >__|
+//         \/     /_____/              \/     \/
+
+// OrgUser represents an organization-user relation.
+type OrgUser struct {
+	ID       int64 `xorm:"pk autoincr"`
+	UID      int64 `xorm:"INDEX UNIQUE(s)"`
+	OrgID    int64 `xorm:"INDEX UNIQUE(s)"`
+	IsPublic bool  `xorm:"INDEX"`
+}
+
+func init() {
+	db.RegisterModel(new(OrgUser))
+}
+
+// GetOrganizationCount returns count of membership of organization of the user.
+func GetOrganizationCount(ctx context.Context, u *user_model.User) (int64, error) {
+	return db.GetEngine(ctx).
+		Where("uid=?", u.ID).
+		Count(new(OrgUser))
+}
+
+// IsOrganizationOwner returns true if given user is in the owner team.
+func IsOrganizationOwner(ctx context.Context, orgID, uid int64) (bool, error) {
+	ownerTeam, err := GetOwnerTeam(ctx, orgID)
+	if err != nil {
+		if IsErrTeamNotExist(err) {
+			log.Error("Organization does not have owner team: %d", orgID)
+			return false, nil
+		}
+		return false, err
+	}
+	return IsTeamMember(ctx, orgID, ownerTeam.ID, uid)
+}
+
+// IsOrganizationAdmin returns true if given user is in the owner team or an admin team.
+func IsOrganizationAdmin(ctx context.Context, orgID, uid int64) (bool, error) {
+	teams, err := GetUserOrgTeams(ctx, orgID, uid)
+	if err != nil {
+		return false, err
+	}
+	for _, t := range teams {
+		if t.AccessMode >= perm.AccessModeAdmin {
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+// IsOrganizationMember returns true if given user is member of organization.
+func IsOrganizationMember(ctx context.Context, orgID, uid int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("uid=?", uid).
+		And("org_id=?", orgID).
+		Table("org_user").
+		Exist()
+}
+
+// IsPublicMembership returns true if the given user's membership of given org is public.
+func IsPublicMembership(ctx context.Context, orgID, uid int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("uid=?", uid).
+		And("org_id=?", orgID).
+		And("is_public=?", true).
+		Table("org_user").
+		Exist()
+}
+
+// CanCreateOrgRepo returns true if user can create repo in organization
+func CanCreateOrgRepo(ctx context.Context, orgID, uid int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where(builder.Eq{"team.can_create_org_repo": true}).
+		Join("INNER", "team_user", "team_user.team_id = team.id").
+		And("team_user.uid = ?", uid).
+		And("team_user.org_id = ?", orgID).
+		Exist(new(Team))
+}
+
+// IsUserOrgOwner returns true if user is in the owner team of given organization.
+func IsUserOrgOwner(ctx context.Context, users user_model.UserList, orgID int64) map[int64]bool {
+	results := make(map[int64]bool, len(users))
+	for _, user := range users {
+		results[user.ID] = false // Set default to false
+	}
+	ownerMaps, err := loadOrganizationOwners(ctx, users, orgID)
+	if err == nil {
+		for _, owner := range ownerMaps {
+			results[owner.UID] = true
+		}
+	}
+	return results
+}
+
+func loadOrganizationOwners(ctx context.Context, users user_model.UserList, orgID int64) (map[int64]*TeamUser, error) {
+	if len(users) == 0 {
+		return nil, nil
+	}
+	ownerTeam, err := GetOwnerTeam(ctx, orgID)
+	if err != nil {
+		if IsErrTeamNotExist(err) {
+			log.Error("Organization does not have owner team: %d", orgID)
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	userIDs := users.GetUserIDs()
+	ownerMaps := make(map[int64]*TeamUser)
+	err = db.GetEngine(ctx).In("uid", userIDs).
+		And("org_id=?", orgID).
+		And("team_id=?", ownerTeam.ID).
+		Find(&ownerMaps)
+	if err != nil {
+		return nil, fmt.Errorf("find team users: %w", err)
+	}
+	return ownerMaps, nil
+}
diff --git a/models/organization/org_user_test.go b/models/organization/org_user_test.go
new file mode 100644
index 0000000..07d07ce
--- /dev/null
+++ b/models/organization/org_user_test.go
@@ -0,0 +1,155 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization_test
+
+import (
+	"fmt"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestUserIsPublicMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	tt := []struct {
+		uid      int64
+		orgid    int64
+		expected bool
+	}{
+		{2, 3, true},
+		{4, 3, false},
+		{5, 6, true},
+		{5, 7, false},
+	}
+	for _, v := range tt {
+		t.Run(fmt.Sprintf("UserId%dIsPublicMemberOf%d", v.uid, v.orgid), func(t *testing.T) {
+			testUserIsPublicMember(t, v.uid, v.orgid, v.expected)
+		})
+	}
+}
+
+func testUserIsPublicMember(t *testing.T, uid, orgID int64, expected bool) {
+	user, err := user_model.GetUserByID(db.DefaultContext, uid)
+	require.NoError(t, err)
+	is, err := organization.IsPublicMembership(db.DefaultContext, orgID, user.ID)
+	require.NoError(t, err)
+	assert.Equal(t, expected, is)
+}
+
+func TestIsUserOrgOwner(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	tt := []struct {
+		uid      int64
+		orgid    int64
+		expected bool
+	}{
+		{2, 3, true},
+		{4, 3, false},
+		{5, 6, true},
+		{5, 7, true},
+	}
+	for _, v := range tt {
+		t.Run(fmt.Sprintf("UserId%dIsOrgOwnerOf%d", v.uid, v.orgid), func(t *testing.T) {
+			testIsUserOrgOwner(t, v.uid, v.orgid, v.expected)
+		})
+	}
+}
+
+func testIsUserOrgOwner(t *testing.T, uid, orgID int64, expected bool) {
+	user, err := user_model.GetUserByID(db.DefaultContext, uid)
+	require.NoError(t, err)
+	is, err := organization.IsOrganizationOwner(db.DefaultContext, orgID, user.ID)
+	require.NoError(t, err)
+	assert.Equal(t, expected, is)
+}
+
+func TestUserListIsPublicMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	tt := []struct {
+		orgid    int64
+		expected map[int64]bool
+	}{
+		{3, map[int64]bool{2: true, 4: false, 28: true}},
+		{6, map[int64]bool{5: true, 28: true}},
+		{7, map[int64]bool{5: false}},
+		{25, map[int64]bool{24: true}},
+		{22, map[int64]bool{}},
+	}
+	for _, v := range tt {
+		t.Run(fmt.Sprintf("IsPublicMemberOfOrgId%d", v.orgid), func(t *testing.T) {
+			testUserListIsPublicMember(t, v.orgid, v.expected)
+		})
+	}
+}
+
+func testUserListIsPublicMember(t *testing.T, orgID int64, expected map[int64]bool) {
+	org, err := organization.GetOrgByID(db.DefaultContext, orgID)
+	require.NoError(t, err)
+	_, membersIsPublic, err := org.GetMembers(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, expected, membersIsPublic)
+}
+
+func TestUserListIsUserOrgOwner(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	tt := []struct {
+		orgid    int64
+		expected map[int64]bool
+	}{
+		{3, map[int64]bool{2: true, 4: false, 28: false}},
+		{6, map[int64]bool{5: true, 28: false}},
+		{7, map[int64]bool{5: true}},
+		{25, map[int64]bool{24: false}}, // ErrTeamNotExist
+		{22, map[int64]bool{}},          // No member
+	}
+	for _, v := range tt {
+		t.Run(fmt.Sprintf("IsUserOrgOwnerOfOrgId%d", v.orgid), func(t *testing.T) {
+			testUserListIsUserOrgOwner(t, v.orgid, v.expected)
+		})
+	}
+}
+
+func testUserListIsUserOrgOwner(t *testing.T, orgID int64, expected map[int64]bool) {
+	org, err := organization.GetOrgByID(db.DefaultContext, orgID)
+	require.NoError(t, err)
+	members, _, err := org.GetMembers(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, expected, organization.IsUserOrgOwner(db.DefaultContext, members, orgID))
+}
+
+func TestAddOrgUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(orgID, userID int64, isPublic bool) {
+		org := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: orgID})
+		expectedNumMembers := org.NumMembers
+		if !unittest.BeanExists(t, &organization.OrgUser{OrgID: orgID, UID: userID}) {
+			expectedNumMembers++
+		}
+		require.NoError(t, organization.AddOrgUser(db.DefaultContext, orgID, userID))
+		ou := &organization.OrgUser{OrgID: orgID, UID: userID}
+		unittest.AssertExistsAndLoadBean(t, ou)
+		assert.Equal(t, isPublic, ou.IsPublic)
+		org = unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: orgID})
+		assert.EqualValues(t, expectedNumMembers, org.NumMembers)
+	}
+
+	setting.Service.DefaultOrgMemberVisible = false
+	testSuccess(3, 5, false)
+	testSuccess(3, 5, false)
+	testSuccess(6, 2, false)
+
+	setting.Service.DefaultOrgMemberVisible = true
+	testSuccess(6, 3, true)
+
+	unittest.CheckConsistencyFor(t, &user_model.User{}, &organization.Team{})
+}
diff --git a/models/organization/team.go b/models/organization/team.go
new file mode 100644
index 0000000..ddff32c
--- /dev/null
+++ b/models/organization/team.go
@@ -0,0 +1,310 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ___________
+// \__    ___/___ _____    _____
+//   |    |_/ __ \\__  \  /     \
+//   |    |\  ___/ / __ \|  Y Y  \
+//   |____| \___  >____  /__|_|  /
+//              \/     \/      \/
+
+// ErrTeamAlreadyExist represents a "TeamAlreadyExist" kind of error.
+type ErrTeamAlreadyExist struct {
+	OrgID int64
+	Name  string
+}
+
+// IsErrTeamAlreadyExist checks if an error is a ErrTeamAlreadyExist.
+func IsErrTeamAlreadyExist(err error) bool {
+	_, ok := err.(ErrTeamAlreadyExist)
+	return ok
+}
+
+func (err ErrTeamAlreadyExist) Error() string {
+	return fmt.Sprintf("team already exists [org_id: %d, name: %s]", err.OrgID, err.Name)
+}
+
+func (err ErrTeamAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrTeamNotExist represents a "TeamNotExist" error
+type ErrTeamNotExist struct {
+	OrgID  int64
+	TeamID int64
+	Name   string
+}
+
+// IsErrTeamNotExist checks if an error is a ErrTeamNotExist.
+func IsErrTeamNotExist(err error) bool {
+	_, ok := err.(ErrTeamNotExist)
+	return ok
+}
+
+func (err ErrTeamNotExist) Error() string {
+	return fmt.Sprintf("team does not exist [org_id %d, team_id %d, name: %s]", err.OrgID, err.TeamID, err.Name)
+}
+
+func (err ErrTeamNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// OwnerTeamName return the owner team name
+const OwnerTeamName = "Owners"
+
+// Team represents a organization team.
+type Team struct {
+	ID                      int64 `xorm:"pk autoincr"`
+	OrgID                   int64 `xorm:"INDEX"`
+	LowerName               string
+	Name                    string
+	Description             string
+	AccessMode              perm.AccessMode          `xorm:"'authorize'"`
+	Repos                   []*repo_model.Repository `xorm:"-"`
+	Members                 []*user_model.User       `xorm:"-"`
+	NumRepos                int
+	NumMembers              int
+	Units                   []*TeamUnit `xorm:"-"`
+	IncludesAllRepositories bool        `xorm:"NOT NULL DEFAULT false"`
+	CanCreateOrgRepo        bool        `xorm:"NOT NULL DEFAULT false"`
+}
+
+func init() {
+	db.RegisterModel(new(Team))
+	db.RegisterModel(new(TeamUser))
+	db.RegisterModel(new(TeamRepo))
+	db.RegisterModel(new(TeamUnit))
+	db.RegisterModel(new(TeamInvite))
+}
+
+func (t *Team) LogString() string {
+	if t == nil {
+		return "<Team nil>"
+	}
+	return fmt.Sprintf("<Team %d:%s OrgID=%d AccessMode=%s>", t.ID, t.Name, t.OrgID, t.AccessMode.LogString())
+}
+
+// LoadUnits load a list of available units for a team
+func (t *Team) LoadUnits(ctx context.Context) (err error) {
+	if t.Units != nil {
+		return nil
+	}
+
+	t.Units, err = getUnitsByTeamID(ctx, t.ID)
+	return err
+}
+
+// GetUnitNames returns the team units names
+func (t *Team) GetUnitNames() (res []string) {
+	if t.AccessMode >= perm.AccessModeAdmin {
+		return unit.AllUnitKeyNames()
+	}
+
+	for _, u := range t.Units {
+		res = append(res, unit.Units[u.Type].NameKey)
+	}
+	return res
+}
+
+// GetUnitsMap returns the team units permissions
+func (t *Team) GetUnitsMap() map[string]string {
+	m := make(map[string]string)
+	if t.AccessMode >= perm.AccessModeAdmin {
+		for _, u := range unit.Units {
+			m[u.NameKey] = t.AccessMode.String()
+		}
+	} else {
+		for _, u := range t.Units {
+			m[u.Unit().NameKey] = u.AccessMode.String()
+		}
+	}
+	return m
+}
+
+// IsOwnerTeam returns true if team is owner team.
+func (t *Team) IsOwnerTeam() bool {
+	return t.Name == OwnerTeamName
+}
+
+// IsMember returns true if given user is a member of team.
+func (t *Team) IsMember(ctx context.Context, userID int64) bool {
+	isMember, err := IsTeamMember(ctx, t.OrgID, t.ID, userID)
+	if err != nil {
+		log.Error("IsMember: %v", err)
+		return false
+	}
+	return isMember
+}
+
+// LoadRepositories returns paginated repositories in team of organization.
+func (t *Team) LoadRepositories(ctx context.Context) (err error) {
+	if t.Repos != nil {
+		return nil
+	}
+	t.Repos, err = GetTeamRepositories(ctx, &SearchTeamRepoOptions{
+		TeamID: t.ID,
+	})
+	return err
+}
+
+// LoadMembers returns paginated members in team of organization.
+func (t *Team) LoadMembers(ctx context.Context) (err error) {
+	t.Members, err = GetTeamMembers(ctx, &SearchMembersOptions{
+		TeamID: t.ID,
+	})
+	return err
+}
+
+// UnitEnabled returns if the team has the given unit type enabled
+func (t *Team) UnitEnabled(ctx context.Context, tp unit.Type) bool {
+	return t.UnitAccessMode(ctx, tp) > perm.AccessModeNone
+}
+
+// UnitAccessMode returns if the team has the given unit type enabled
+func (t *Team) UnitAccessMode(ctx context.Context, tp unit.Type) perm.AccessMode {
+	if err := t.LoadUnits(ctx); err != nil {
+		log.Warn("Error loading team (ID: %d) units: %s", t.ID, err.Error())
+	}
+
+	for _, unit := range t.Units {
+		if unit.Type == tp {
+			return unit.AccessMode
+		}
+	}
+	return perm.AccessModeNone
+}
+
+// IsUsableTeamName tests if a name could be as team name
+func IsUsableTeamName(name string) error {
+	switch name {
+	case "new":
+		return db.ErrNameReserved{Name: name}
+	default:
+		return nil
+	}
+}
+
+// GetTeam returns team by given team name and organization.
+func GetTeam(ctx context.Context, orgID int64, name string) (*Team, error) {
+	t, exist, err := db.Get[Team](ctx, builder.Eq{"org_id": orgID, "lower_name": strings.ToLower(name)})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrTeamNotExist{orgID, 0, name}
+	}
+	return t, nil
+}
+
+// GetTeamIDsByNames returns a slice of team ids corresponds to names.
+func GetTeamIDsByNames(ctx context.Context, orgID int64, names []string, ignoreNonExistent bool) ([]int64, error) {
+	ids := make([]int64, 0, len(names))
+	for _, name := range names {
+		u, err := GetTeam(ctx, orgID, name)
+		if err != nil {
+			if ignoreNonExistent {
+				continue
+			}
+			return nil, err
+		}
+		ids = append(ids, u.ID)
+	}
+	return ids, nil
+}
+
+// GetOwnerTeam returns team by given team name and organization.
+func GetOwnerTeam(ctx context.Context, orgID int64) (*Team, error) {
+	return GetTeam(ctx, orgID, OwnerTeamName)
+}
+
+// GetTeamByID returns team by given ID.
+func GetTeamByID(ctx context.Context, teamID int64) (*Team, error) {
+	t := new(Team)
+	has, err := db.GetEngine(ctx).ID(teamID).Get(t)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrTeamNotExist{0, teamID, ""}
+	}
+	return t, nil
+}
+
+// GetTeamNamesByID returns team's lower name from a list of team ids.
+func GetTeamNamesByID(ctx context.Context, teamIDs []int64) ([]string, error) {
+	if len(teamIDs) == 0 {
+		return []string{}, nil
+	}
+
+	var teamNames []string
+	err := db.GetEngine(ctx).Table("team").
+		Select("lower_name").
+		In("id", teamIDs).
+		Asc("name").
+		Find(&teamNames)
+
+	return teamNames, err
+}
+
+// IncrTeamRepoNum increases the number of repos for the given team by 1
+func IncrTeamRepoNum(ctx context.Context, teamID int64) error {
+	_, err := db.GetEngine(ctx).Incr("num_repos").ID(teamID).Update(new(Team))
+	return err
+}
+
+// CountInconsistentOwnerTeams returns the amount of owner teams that have all of
+// their access modes set to "None".
+func CountInconsistentOwnerTeams(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Table("team").
+		Join("INNER", "team_unit", "`team`.id = `team_unit`.team_id").
+		Where("`team`.lower_name = ?", strings.ToLower(OwnerTeamName)).
+		GroupBy("`team_unit`.team_id").
+		Having("SUM(`team_unit`.access_mode) = 0").
+		Count()
+}
+
+// FixInconsistentOwnerTeams fixes inconsistent owner teams that have all of
+// their access modes set to "None", it sets it back to "Owner".
+func FixInconsistentOwnerTeams(ctx context.Context) (int64, error) {
+	teamIDs := []int64{}
+	if err := db.GetEngine(ctx).Table("team").
+		Select("`team`.id").
+		Join("INNER", "team_unit", "`team`.id = `team_unit`.team_id").
+		Where("`team`.lower_name = ?", strings.ToLower(OwnerTeamName)).
+		GroupBy("`team_unit`.team_id").
+		Having("SUM(`team_unit`.access_mode) = 0").
+		Find(&teamIDs); err != nil {
+		return 0, err
+	}
+
+	if err := db.Iterate(ctx, builder.In("team_id", teamIDs), func(ctx context.Context, bean *TeamUnit) error {
+		if bean.Type == unit.TypeExternalTracker || bean.Type == unit.TypeExternalWiki {
+			bean.AccessMode = perm.AccessModeRead
+		} else {
+			bean.AccessMode = perm.AccessModeOwner
+		}
+		_, err := db.GetEngine(ctx).ID(bean.ID).Table("team_unit").Cols("access_mode").Update(bean)
+		return err
+	}); err != nil {
+		return 0, err
+	}
+
+	return int64(len(teamIDs)), nil
+}
diff --git a/models/organization/team_invite.go b/models/organization/team_invite.go
new file mode 100644
index 0000000..17f6c59
--- /dev/null
+++ b/models/organization/team_invite.go
@@ -0,0 +1,161 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+type ErrTeamInviteAlreadyExist struct {
+	TeamID int64
+	Email  string
+}
+
+func IsErrTeamInviteAlreadyExist(err error) bool {
+	_, ok := err.(ErrTeamInviteAlreadyExist)
+	return ok
+}
+
+func (err ErrTeamInviteAlreadyExist) Error() string {
+	return fmt.Sprintf("team invite already exists [team_id: %d, email: %s]", err.TeamID, err.Email)
+}
+
+func (err ErrTeamInviteAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+type ErrTeamInviteNotFound struct {
+	Token string
+}
+
+func IsErrTeamInviteNotFound(err error) bool {
+	_, ok := err.(ErrTeamInviteNotFound)
+	return ok
+}
+
+func (err ErrTeamInviteNotFound) Error() string {
+	return fmt.Sprintf("team invite was not found [token: %s]", err.Token)
+}
+
+func (err ErrTeamInviteNotFound) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrUserEmailAlreadyAdded represents a "user by email already added to team" error.
+type ErrUserEmailAlreadyAdded struct {
+	Email string
+}
+
+// IsErrUserEmailAlreadyAdded checks if an error is a ErrUserEmailAlreadyAdded.
+func IsErrUserEmailAlreadyAdded(err error) bool {
+	_, ok := err.(ErrUserEmailAlreadyAdded)
+	return ok
+}
+
+func (err ErrUserEmailAlreadyAdded) Error() string {
+	return fmt.Sprintf("user with email already added [email: %s]", err.Email)
+}
+
+func (err ErrUserEmailAlreadyAdded) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// TeamInvite represents an invite to a team
+type TeamInvite struct {
+	ID          int64              `xorm:"pk autoincr"`
+	Token       string             `xorm:"UNIQUE(token) INDEX NOT NULL DEFAULT ''"`
+	InviterID   int64              `xorm:"NOT NULL DEFAULT 0"`
+	OrgID       int64              `xorm:"INDEX NOT NULL DEFAULT 0"`
+	TeamID      int64              `xorm:"UNIQUE(team_mail) INDEX NOT NULL DEFAULT 0"`
+	Email       string             `xorm:"UNIQUE(team_mail) NOT NULL DEFAULT ''"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func CreateTeamInvite(ctx context.Context, doer *user_model.User, team *Team, email string) (*TeamInvite, error) {
+	has, err := db.GetEngine(ctx).Exist(&TeamInvite{
+		TeamID: team.ID,
+		Email:  email,
+	})
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return nil, ErrTeamInviteAlreadyExist{
+			TeamID: team.ID,
+			Email:  email,
+		}
+	}
+
+	// check if the user is already a team member by email
+	exist, err := db.GetEngine(ctx).
+		Where(builder.Eq{
+			"team_user.org_id":  team.OrgID,
+			"team_user.team_id": team.ID,
+			"`user`.email":      email,
+		}).
+		Join("INNER", "`user`", "`user`.id = team_user.uid").
+		Table("team_user").
+		Exist()
+	if err != nil {
+		return nil, err
+	}
+
+	if exist {
+		return nil, ErrUserEmailAlreadyAdded{
+			Email: email,
+		}
+	}
+
+	token, err := util.CryptoRandomString(25)
+	if err != nil {
+		return nil, err
+	}
+
+	invite := &TeamInvite{
+		Token:     token,
+		InviterID: doer.ID,
+		OrgID:     team.OrgID,
+		TeamID:    team.ID,
+		Email:     email,
+	}
+
+	return invite, db.Insert(ctx, invite)
+}
+
+func RemoveInviteByID(ctx context.Context, inviteID, teamID int64) error {
+	_, err := db.DeleteByBean(ctx, &TeamInvite{
+		ID:     inviteID,
+		TeamID: teamID,
+	})
+	return err
+}
+
+func GetInvitesByTeamID(ctx context.Context, teamID int64) ([]*TeamInvite, error) {
+	invites := make([]*TeamInvite, 0, 10)
+	return invites, db.GetEngine(ctx).
+		Where("team_id=?", teamID).
+		Find(&invites)
+}
+
+func GetInviteByToken(ctx context.Context, token string) (*TeamInvite, error) {
+	invite := &TeamInvite{}
+
+	has, err := db.GetEngine(ctx).Where("token=?", token).Get(invite)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrTeamInviteNotFound{Token: token}
+	}
+	return invite, nil
+}
diff --git a/models/organization/team_invite_test.go b/models/organization/team_invite_test.go
new file mode 100644
index 0000000..cbabf79
--- /dev/null
+++ b/models/organization/team_invite_test.go
@@ -0,0 +1,49 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTeamInvite(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+
+	t.Run("MailExistsInTeam", func(t *testing.T) {
+		user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+		// user 2 already added to team 2, should result in error
+		_, err := organization.CreateTeamInvite(db.DefaultContext, user2, team, user2.Email)
+		require.Error(t, err)
+	})
+
+	t.Run("CreateAndRemove", func(t *testing.T) {
+		user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+		invite, err := organization.CreateTeamInvite(db.DefaultContext, user1, team, "org3@example.com")
+		assert.NotNil(t, invite)
+		require.NoError(t, err)
+
+		// Shouldn't allow duplicate invite
+		_, err = organization.CreateTeamInvite(db.DefaultContext, user1, team, "org3@example.com")
+		require.Error(t, err)
+
+		// should remove invite
+		require.NoError(t, organization.RemoveInviteByID(db.DefaultContext, invite.ID, invite.TeamID))
+
+		// invite should not exist
+		_, err = organization.GetInviteByToken(db.DefaultContext, invite.Token)
+		require.Error(t, err)
+	})
+}
diff --git a/models/organization/team_list.go b/models/organization/team_list.go
new file mode 100644
index 0000000..5b45429
--- /dev/null
+++ b/models/organization/team_list.go
@@ -0,0 +1,128 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+
+	"xorm.io/builder"
+)
+
+type TeamList []*Team
+
+func (t TeamList) LoadUnits(ctx context.Context) error {
+	for _, team := range t {
+		if err := team.LoadUnits(ctx); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (t TeamList) UnitMaxAccess(tp unit.Type) perm.AccessMode {
+	maxAccess := perm.AccessModeNone
+	for _, team := range t {
+		if team.IsOwnerTeam() {
+			return perm.AccessModeOwner
+		}
+		for _, teamUnit := range team.Units {
+			if teamUnit.Type != tp {
+				continue
+			}
+			if teamUnit.AccessMode > maxAccess {
+				maxAccess = teamUnit.AccessMode
+			}
+		}
+	}
+	return maxAccess
+}
+
+// SearchTeamOptions holds the search options
+type SearchTeamOptions struct {
+	db.ListOptions
+	UserID      int64
+	Keyword     string
+	OrgID       int64
+	IncludeDesc bool
+}
+
+func (opts *SearchTeamOptions) toCond() builder.Cond {
+	cond := builder.NewCond()
+
+	if len(opts.Keyword) > 0 {
+		lowerKeyword := strings.ToLower(opts.Keyword)
+		var keywordCond builder.Cond = builder.Like{"lower_name", lowerKeyword}
+		if opts.IncludeDesc {
+			keywordCond = keywordCond.Or(builder.Like{"LOWER(description)", lowerKeyword})
+		}
+		cond = cond.And(keywordCond)
+	}
+
+	if opts.OrgID > 0 {
+		cond = cond.And(builder.Eq{"`team`.org_id": opts.OrgID})
+	}
+
+	if opts.UserID > 0 {
+		cond = cond.And(builder.Eq{"team_user.uid": opts.UserID})
+	}
+
+	return cond
+}
+
+// SearchTeam search for teams. Caller is responsible to check permissions.
+func SearchTeam(ctx context.Context, opts *SearchTeamOptions) (TeamList, int64, error) {
+	sess := db.GetEngine(ctx)
+
+	opts.SetDefaultValues()
+	cond := opts.toCond()
+
+	if opts.UserID > 0 {
+		sess = sess.Join("INNER", "team_user", "team_user.team_id = team.id")
+	}
+	sess = db.SetSessionPagination(sess, opts)
+
+	teams := make([]*Team, 0, opts.PageSize)
+	count, err := sess.Where(cond).OrderBy("lower_name").FindAndCount(&teams)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return teams, count, nil
+}
+
+// GetRepoTeams gets the list of teams that has access to the repository
+func GetRepoTeams(ctx context.Context, repo *repo_model.Repository) (teams TeamList, err error) {
+	return teams, db.GetEngine(ctx).
+		Join("INNER", "team_repo", "team_repo.team_id = team.id").
+		Where("team.org_id = ?", repo.OwnerID).
+		And("team_repo.repo_id=?", repo.ID).
+		OrderBy("CASE WHEN name LIKE '" + OwnerTeamName + "' THEN '' ELSE name END").
+		Find(&teams)
+}
+
+// GetUserOrgTeams returns all teams that user belongs to in given organization.
+func GetUserOrgTeams(ctx context.Context, orgID, userID int64) (teams TeamList, err error) {
+	return teams, db.GetEngine(ctx).
+		Join("INNER", "team_user", "team_user.team_id = team.id").
+		Where("team.org_id = ?", orgID).
+		And("team_user.uid=?", userID).
+		Find(&teams)
+}
+
+// GetUserRepoTeams returns user repo's teams
+func GetUserRepoTeams(ctx context.Context, orgID, userID, repoID int64) (teams TeamList, err error) {
+	return teams, db.GetEngine(ctx).
+		Join("INNER", "team_user", "team_user.team_id = team.id").
+		Join("INNER", "team_repo", "team_repo.team_id = team.id").
+		Where("team.org_id = ?", orgID).
+		And("team_user.uid=?", userID).
+		And("team_repo.repo_id=?", repoID).
+		Find(&teams)
+}
diff --git a/models/organization/team_repo.go b/models/organization/team_repo.go
new file mode 100644
index 0000000..1184e39
--- /dev/null
+++ b/models/organization/team_repo.go
@@ -0,0 +1,85 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+
+	"xorm.io/builder"
+)
+
+// TeamRepo represents an team-repository relation.
+type TeamRepo struct {
+	ID     int64 `xorm:"pk autoincr"`
+	OrgID  int64 `xorm:"INDEX"`
+	TeamID int64 `xorm:"UNIQUE(s)"`
+	RepoID int64 `xorm:"UNIQUE(s)"`
+}
+
+// HasTeamRepo returns true if given repository belongs to team.
+func HasTeamRepo(ctx context.Context, orgID, teamID, repoID int64) bool {
+	has, _ := db.GetEngine(ctx).
+		Where("org_id=?", orgID).
+		And("team_id=?", teamID).
+		And("repo_id=?", repoID).
+		Get(new(TeamRepo))
+	return has
+}
+
+type SearchTeamRepoOptions struct {
+	db.ListOptions
+	TeamID int64
+}
+
+// GetRepositories returns paginated repositories in team of organization.
+func GetTeamRepositories(ctx context.Context, opts *SearchTeamRepoOptions) (repo_model.RepositoryList, error) {
+	sess := db.GetEngine(ctx)
+	if opts.TeamID > 0 {
+		sess = sess.In("id",
+			builder.Select("repo_id").
+				From("team_repo").
+				Where(builder.Eq{"team_id": opts.TeamID}),
+		)
+	}
+	if opts.PageSize > 0 {
+		sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	var repos []*repo_model.Repository
+	return repos, sess.OrderBy("repository.name").
+		Find(&repos)
+}
+
+// AddTeamRepo adds a repo for an organization's team
+func AddTeamRepo(ctx context.Context, orgID, teamID, repoID int64) error {
+	_, err := db.GetEngine(ctx).Insert(&TeamRepo{
+		OrgID:  orgID,
+		TeamID: teamID,
+		RepoID: repoID,
+	})
+	return err
+}
+
+// RemoveTeamRepo remove repository from team
+func RemoveTeamRepo(ctx context.Context, teamID, repoID int64) error {
+	_, err := db.DeleteByBean(ctx, &TeamRepo{
+		TeamID: teamID,
+		RepoID: repoID,
+	})
+	return err
+}
+
+// GetTeamsWithAccessToRepo returns all teams in an organization that have given access level to the repository.
+func GetTeamsWithAccessToRepo(ctx context.Context, orgID, repoID int64, mode perm.AccessMode) ([]*Team, error) {
+	teams := make([]*Team, 0, 5)
+	return teams, db.GetEngine(ctx).Where("team.authorize >= ?", mode).
+		Join("INNER", "team_repo", "team_repo.team_id = team.id").
+		And("team_repo.org_id = ?", orgID).
+		And("team_repo.repo_id = ?", repoID).
+		OrderBy("name").
+		Find(&teams)
+}
diff --git a/models/organization/team_test.go b/models/organization/team_test.go
new file mode 100644
index 0000000..601d136
--- /dev/null
+++ b/models/organization/team_test.go
@@ -0,0 +1,250 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTeam_IsOwnerTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 1})
+	assert.True(t, team.IsOwnerTeam())
+
+	team = unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+	assert.False(t, team.IsOwnerTeam())
+}
+
+func TestTeam_IsMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 1})
+	assert.True(t, team.IsMember(db.DefaultContext, 2))
+	assert.False(t, team.IsMember(db.DefaultContext, 4))
+	assert.False(t, team.IsMember(db.DefaultContext, unittest.NonexistentID))
+
+	team = unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: 2})
+	assert.True(t, team.IsMember(db.DefaultContext, 2))
+	assert.True(t, team.IsMember(db.DefaultContext, 4))
+	assert.False(t, team.IsMember(db.DefaultContext, unittest.NonexistentID))
+}
+
+func TestTeam_GetRepositories(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, team.LoadRepositories(db.DefaultContext))
+		assert.Len(t, team.Repos, team.NumRepos)
+		for _, repo := range team.Repos {
+			unittest.AssertExistsAndLoadBean(t, &organization.TeamRepo{TeamID: teamID, RepoID: repo.ID})
+		}
+	}
+	test(1)
+	test(3)
+}
+
+func TestTeam_GetMembers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		require.NoError(t, team.LoadMembers(db.DefaultContext))
+		assert.Len(t, team.Members, team.NumMembers)
+		for _, member := range team.Members {
+			unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{UID: member.ID, TeamID: teamID})
+		}
+	}
+	test(1)
+	test(3)
+}
+
+func TestGetTeam(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(orgID int64, name string) {
+		team, err := organization.GetTeam(db.DefaultContext, orgID, name)
+		require.NoError(t, err)
+		assert.EqualValues(t, orgID, team.OrgID)
+		assert.Equal(t, name, team.Name)
+	}
+	testSuccess(3, "Owners")
+	testSuccess(3, "team1")
+
+	_, err := organization.GetTeam(db.DefaultContext, 3, "nonexistent")
+	require.Error(t, err)
+	_, err = organization.GetTeam(db.DefaultContext, unittest.NonexistentID, "Owners")
+	require.Error(t, err)
+}
+
+func TestGetTeamByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(teamID int64) {
+		team, err := organization.GetTeamByID(db.DefaultContext, teamID)
+		require.NoError(t, err)
+		assert.EqualValues(t, teamID, team.ID)
+	}
+	testSuccess(1)
+	testSuccess(2)
+	testSuccess(3)
+	testSuccess(4)
+
+	_, err := organization.GetTeamByID(db.DefaultContext, unittest.NonexistentID)
+	require.Error(t, err)
+}
+
+func TestIsTeamMember(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(orgID, teamID, userID int64, expected bool) {
+		isMember, err := organization.IsTeamMember(db.DefaultContext, orgID, teamID, userID)
+		require.NoError(t, err)
+		assert.Equal(t, expected, isMember)
+	}
+
+	test(3, 1, 2, true)
+	test(3, 1, 4, false)
+	test(3, 1, unittest.NonexistentID, false)
+
+	test(3, 2, 2, true)
+	test(3, 2, 4, true)
+
+	test(3, unittest.NonexistentID, unittest.NonexistentID, false)
+	test(unittest.NonexistentID, unittest.NonexistentID, unittest.NonexistentID, false)
+}
+
+func TestGetTeamMembers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID int64) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		members, err := organization.GetTeamMembers(db.DefaultContext, &organization.SearchMembersOptions{
+			TeamID: teamID,
+		})
+		require.NoError(t, err)
+		assert.Len(t, members, team.NumMembers)
+		for _, member := range members {
+			unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{UID: member.ID, TeamID: teamID})
+		}
+	}
+	test(1)
+	test(3)
+}
+
+func TestGetUserTeams(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(userID int64) {
+		teams, _, err := organization.SearchTeam(db.DefaultContext, &organization.SearchTeamOptions{UserID: userID})
+		require.NoError(t, err)
+		for _, team := range teams {
+			unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{TeamID: team.ID, UID: userID})
+		}
+	}
+	test(2)
+	test(5)
+	test(unittest.NonexistentID)
+}
+
+func TestGetUserOrgTeams(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(orgID, userID int64) {
+		teams, err := organization.GetUserOrgTeams(db.DefaultContext, orgID, userID)
+		require.NoError(t, err)
+		for _, team := range teams {
+			assert.EqualValues(t, orgID, team.OrgID)
+			unittest.AssertExistsAndLoadBean(t, &organization.TeamUser{TeamID: team.ID, UID: userID})
+		}
+	}
+	test(3, 2)
+	test(3, 4)
+	test(3, unittest.NonexistentID)
+}
+
+func TestHasTeamRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamID, repoID int64, expected bool) {
+		team := unittest.AssertExistsAndLoadBean(t, &organization.Team{ID: teamID})
+		assert.Equal(t, expected, organization.HasTeamRepo(db.DefaultContext, team.OrgID, teamID, repoID))
+	}
+	test(1, 1, false)
+	test(1, 3, true)
+	test(1, 5, true)
+	test(1, unittest.NonexistentID, false)
+
+	test(2, 3, true)
+	test(2, 5, false)
+}
+
+func TestUsersInTeamsCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(teamIDs, userIDs []int64, expected int64) {
+		count, err := organization.UsersInTeamsCount(db.DefaultContext, teamIDs, userIDs)
+		require.NoError(t, err)
+		assert.Equal(t, expected, count)
+	}
+
+	test([]int64{2}, []int64{1, 2, 3, 4}, 1)          // only userid 2
+	test([]int64{1, 2, 3, 4, 5}, []int64{2, 5}, 2)    // userid 2,4
+	test([]int64{1, 2, 3, 4, 5}, []int64{2, 3, 5}, 3) // userid 2,4,5
+}
+
+func TestInconsistentOwnerTeam(t *testing.T) {
+	defer unittest.OverrideFixtures(
+		unittest.FixturesOptions{
+			Dir:  filepath.Join(setting.AppWorkPath, "models/fixtures/"),
+			Base: setting.AppWorkPath,
+			Dirs: []string{"models/organization/TestInconsistentOwnerTeam/"},
+		},
+	)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1000, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1001, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1002, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1003, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1004, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1005, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1006, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1007, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1008, TeamID: 1000, AccessMode: perm.AccessModeNone})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1009, TeamID: 1000, AccessMode: perm.AccessModeNone})
+
+	count, err := organization.CountInconsistentOwnerTeams(db.DefaultContext)
+	require.NoError(t, err)
+	require.EqualValues(t, 1, count)
+
+	count, err = organization.FixInconsistentOwnerTeams(db.DefaultContext)
+	require.NoError(t, err)
+	require.EqualValues(t, 1, count)
+
+	count, err = organization.CountInconsistentOwnerTeams(db.DefaultContext)
+	require.NoError(t, err)
+	require.EqualValues(t, 0, count)
+
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1000, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1001, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1002, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1003, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1004, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1007, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1008, AccessMode: perm.AccessModeOwner})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1009, AccessMode: perm.AccessModeOwner})
+
+	// External wiki and issue
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1005, AccessMode: perm.AccessModeRead})
+	unittest.AssertExistsAndLoadBean(t, &organization.TeamUnit{ID: 1006, AccessMode: perm.AccessModeRead})
+}
diff --git a/models/organization/team_unit.go b/models/organization/team_unit.go
new file mode 100644
index 0000000..3087b70
--- /dev/null
+++ b/models/organization/team_unit.go
@@ -0,0 +1,51 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+)
+
+// TeamUnit describes all units of a repository
+type TeamUnit struct {
+	ID         int64     `xorm:"pk autoincr"`
+	OrgID      int64     `xorm:"INDEX"`
+	TeamID     int64     `xorm:"UNIQUE(s)"`
+	Type       unit.Type `xorm:"UNIQUE(s)"`
+	AccessMode perm.AccessMode
+}
+
+// Unit returns Unit
+func (t *TeamUnit) Unit() unit.Unit {
+	return unit.Units[t.Type]
+}
+
+func getUnitsByTeamID(ctx context.Context, teamID int64) (units []*TeamUnit, err error) {
+	return units, db.GetEngine(ctx).Where("team_id = ?", teamID).Find(&units)
+}
+
+// UpdateTeamUnits updates a teams's units
+func UpdateTeamUnits(ctx context.Context, team *Team, units []TeamUnit) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err = db.GetEngine(ctx).Where("team_id = ?", team.ID).Delete(new(TeamUnit)); err != nil {
+		return err
+	}
+
+	if len(units) > 0 {
+		if err = db.Insert(ctx, units); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
diff --git a/models/organization/team_user.go b/models/organization/team_user.go
new file mode 100644
index 0000000..ab767db
--- /dev/null
+++ b/models/organization/team_user.go
@@ -0,0 +1,89 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package organization
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+// TeamUser represents an team-user relation.
+type TeamUser struct {
+	ID     int64 `xorm:"pk autoincr"`
+	OrgID  int64 `xorm:"INDEX"`
+	TeamID int64 `xorm:"UNIQUE(s)"`
+	UID    int64 `xorm:"UNIQUE(s)"`
+}
+
+// IsTeamMember returns true if given user is a member of team.
+func IsTeamMember(ctx context.Context, orgID, teamID, userID int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("org_id=?", orgID).
+		And("team_id=?", teamID).
+		And("uid=?", userID).
+		Table("team_user").
+		Exist()
+}
+
+// GetTeamUsersByTeamID returns team users for a team
+func GetTeamUsersByTeamID(ctx context.Context, teamID int64) ([]*TeamUser, error) {
+	teamUsers := make([]*TeamUser, 0, 10)
+	return teamUsers, db.GetEngine(ctx).
+		Where("team_id=?", teamID).
+		Find(&teamUsers)
+}
+
+// SearchMembersOptions holds the search options
+type SearchMembersOptions struct {
+	db.ListOptions
+	TeamID int64
+}
+
+func (opts SearchMembersOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.TeamID > 0 {
+		cond = cond.And(builder.Eq{"": opts.TeamID})
+	}
+	return cond
+}
+
+// GetTeamMembers returns all members in given team of organization.
+func GetTeamMembers(ctx context.Context, opts *SearchMembersOptions) ([]*user_model.User, error) {
+	var members []*user_model.User
+	sess := db.GetEngine(ctx)
+	if opts.TeamID > 0 {
+		sess = sess.In("id",
+			builder.Select("uid").
+				From("team_user").
+				Where(builder.Eq{"team_id": opts.TeamID}),
+		)
+	}
+	if opts.PageSize > 0 && opts.Page > 0 {
+		sess = sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	if err := sess.OrderBy("full_name, name").Find(&members); err != nil {
+		return nil, err
+	}
+	return members, nil
+}
+
+// IsUserInTeams returns if a user in some teams
+func IsUserInTeams(ctx context.Context, userID int64, teamIDs []int64) (bool, error) {
+	return db.GetEngine(ctx).Where("uid=?", userID).In("team_id", teamIDs).Exist(new(TeamUser))
+}
+
+// UsersInTeamsCount counts the number of users which are in userIDs and teamIDs
+func UsersInTeamsCount(ctx context.Context, userIDs, teamIDs []int64) (int64, error) {
+	var ids []int64
+	if err := db.GetEngine(ctx).In("uid", userIDs).In("team_id", teamIDs).
+		Table("team_user").
+		Cols("uid").GroupBy("uid").Find(&ids); err != nil {
+		return 0, err
+	}
+	return int64(len(ids)), nil
+}
diff --git a/models/packages/alpine/search.go b/models/packages/alpine/search.go
new file mode 100644
index 0000000..77eccb9
--- /dev/null
+++ b/models/packages/alpine/search.go
@@ -0,0 +1,53 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package alpine
+
+import (
+	"context"
+
+	packages_model "code.gitea.io/gitea/models/packages"
+	alpine_module "code.gitea.io/gitea/modules/packages/alpine"
+)
+
+// GetBranches gets all available branches
+func GetBranches(ctx context.Context, ownerID int64) ([]string, error) {
+	return packages_model.GetDistinctPropertyValues(
+		ctx,
+		packages_model.TypeAlpine,
+		ownerID,
+		packages_model.PropertyTypeFile,
+		alpine_module.PropertyBranch,
+		nil,
+	)
+}
+
+// GetRepositories gets all available repositories for the given branch
+func GetRepositories(ctx context.Context, ownerID int64, branch string) ([]string, error) {
+	return packages_model.GetDistinctPropertyValues(
+		ctx,
+		packages_model.TypeAlpine,
+		ownerID,
+		packages_model.PropertyTypeFile,
+		alpine_module.PropertyRepository,
+		&packages_model.DistinctPropertyDependency{
+			Name:  alpine_module.PropertyBranch,
+			Value: branch,
+		},
+	)
+}
+
+// GetArchitectures gets all available architectures for the given repository
+func GetArchitectures(ctx context.Context, ownerID int64, repository string) ([]string, error) {
+	return packages_model.GetDistinctPropertyValues(
+		ctx,
+		packages_model.TypeAlpine,
+		ownerID,
+		packages_model.PropertyTypeFile,
+		alpine_module.PropertyArchitecture,
+		&packages_model.DistinctPropertyDependency{
+			Name:  alpine_module.PropertyRepository,
+			Value: repository,
+		},
+	)
+}
diff --git a/models/packages/conan/references.go b/models/packages/conan/references.go
new file mode 100644
index 0000000..0d888a1
--- /dev/null
+++ b/models/packages/conan/references.go
@@ -0,0 +1,170 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package conan
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	conan_module "code.gitea.io/gitea/modules/packages/conan"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+var (
+	ErrRecipeReferenceNotExist  = util.NewNotExistErrorf("recipe reference does not exist")
+	ErrPackageReferenceNotExist = util.NewNotExistErrorf("package reference does not exist")
+)
+
+// RecipeExists checks if a recipe exists
+func RecipeExists(ctx context.Context, ownerID int64, ref *conan_module.RecipeReference) (bool, error) {
+	revisions, err := GetRecipeRevisions(ctx, ownerID, ref)
+	if err != nil {
+		return false, err
+	}
+
+	return len(revisions) != 0, nil
+}
+
+type PropertyValue struct {
+	Value       string
+	CreatedUnix timeutil.TimeStamp
+}
+
+func findPropertyValues(ctx context.Context, propertyName string, ownerID int64, name, version string, propertyFilter map[string]string) ([]*PropertyValue, error) {
+	var propsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypeFile,
+	}
+	propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_file.id"))
+
+	propsCondBlock := builder.NewCond()
+	for name, value := range propertyFilter {
+		propsCondBlock = propsCondBlock.Or(builder.Eq{
+			"package_property.name":  name,
+			"package_property.value": value,
+		})
+	}
+	propsCond = propsCond.And(propsCondBlock)
+
+	var cond builder.Cond = builder.Eq{
+		"package.type":                    packages.TypeConan,
+		"package.owner_id":                ownerID,
+		"package.lower_name":              strings.ToLower(name),
+		"package_version.lower_version":   strings.ToLower(version),
+		"package_version.is_internal":     false,
+		strconv.Itoa(len(propertyFilter)): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+	}
+
+	in2 := builder.
+		Select("package_file.id").
+		From("package_file").
+		InnerJoin("package_version", "package_version.id = package_file.version_id").
+		InnerJoin("package", "package.id = package_version.package_id").
+		Where(cond)
+
+	query := builder.
+		Select("package_property.value, MAX(package_file.created_unix) AS created_unix").
+		From("package_property").
+		InnerJoin("package_file", "package_file.id = package_property.ref_id").
+		Where(builder.Eq{"package_property.name": propertyName}.And(builder.In("package_property.ref_id", in2))).
+		GroupBy("package_property.value").
+		OrderBy("created_unix DESC")
+
+	var values []*PropertyValue
+	return values, db.GetEngine(ctx).SQL(query).Find(&values)
+}
+
+// GetRecipeRevisions gets all revisions of a recipe
+func GetRecipeRevisions(ctx context.Context, ownerID int64, ref *conan_module.RecipeReference) ([]*PropertyValue, error) {
+	values, err := findPropertyValues(
+		ctx,
+		conan_module.PropertyRecipeRevision,
+		ownerID,
+		ref.Name,
+		ref.Version,
+		map[string]string{
+			conan_module.PropertyRecipeUser:    ref.User,
+			conan_module.PropertyRecipeChannel: ref.Channel,
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return values, nil
+}
+
+// GetLastRecipeRevision gets the latest recipe revision
+func GetLastRecipeRevision(ctx context.Context, ownerID int64, ref *conan_module.RecipeReference) (*PropertyValue, error) {
+	revisions, err := GetRecipeRevisions(ctx, ownerID, ref)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(revisions) == 0 {
+		return nil, ErrRecipeReferenceNotExist
+	}
+	return revisions[0], nil
+}
+
+// GetPackageReferences gets all package references of a recipe
+func GetPackageReferences(ctx context.Context, ownerID int64, ref *conan_module.RecipeReference) ([]*PropertyValue, error) {
+	values, err := findPropertyValues(
+		ctx,
+		conan_module.PropertyPackageReference,
+		ownerID,
+		ref.Name,
+		ref.Version,
+		map[string]string{
+			conan_module.PropertyRecipeUser:     ref.User,
+			conan_module.PropertyRecipeChannel:  ref.Channel,
+			conan_module.PropertyRecipeRevision: ref.Revision,
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return values, nil
+}
+
+// GetPackageRevisions gets all revision of a package
+func GetPackageRevisions(ctx context.Context, ownerID int64, ref *conan_module.PackageReference) ([]*PropertyValue, error) {
+	values, err := findPropertyValues(
+		ctx,
+		conan_module.PropertyPackageRevision,
+		ownerID,
+		ref.Recipe.Name,
+		ref.Recipe.Version,
+		map[string]string{
+			conan_module.PropertyRecipeUser:       ref.Recipe.User,
+			conan_module.PropertyRecipeChannel:    ref.Recipe.Channel,
+			conan_module.PropertyRecipeRevision:   ref.Recipe.Revision,
+			conan_module.PropertyPackageReference: ref.Reference,
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return values, nil
+}
+
+// GetLastPackageRevision gets the latest package revision
+func GetLastPackageRevision(ctx context.Context, ownerID int64, ref *conan_module.PackageReference) (*PropertyValue, error) {
+	revisions, err := GetPackageRevisions(ctx, ownerID, ref)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(revisions) == 0 {
+		return nil, ErrPackageReferenceNotExist
+	}
+	return revisions[0], nil
+}
diff --git a/models/packages/conan/search.go b/models/packages/conan/search.go
new file mode 100644
index 0000000..ab0bff5
--- /dev/null
+++ b/models/packages/conan/search.go
@@ -0,0 +1,149 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package conan
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	"code.gitea.io/gitea/modules/container"
+	conan_module "code.gitea.io/gitea/modules/packages/conan"
+
+	"xorm.io/builder"
+)
+
+// buildCondition creates a Like condition if a wildcard is present. Otherwise Eq is used.
+func buildCondition(name, value string) builder.Cond {
+	if strings.Contains(value, "*") {
+		return builder.Like{name, strings.ReplaceAll(strings.ReplaceAll(value, "_", "\\_"), "*", "%")}
+	}
+	return builder.Eq{name: value}
+}
+
+type RecipeSearchOptions struct {
+	OwnerID int64
+	Name    string
+	Version string
+	User    string
+	Channel string
+}
+
+// SearchRecipes gets all recipes matching the search options
+func SearchRecipes(ctx context.Context, opts *RecipeSearchOptions) ([]string, error) {
+	var cond builder.Cond = builder.Eq{
+		"package_file.is_lead":        true,
+		"package.type":                packages.TypeConan,
+		"package.owner_id":            opts.OwnerID,
+		"package_version.is_internal": false,
+	}
+
+	if opts.Name != "" {
+		cond = cond.And(buildCondition("package.lower_name", strings.ToLower(opts.Name)))
+	}
+	if opts.Version != "" {
+		cond = cond.And(buildCondition("package_version.lower_version", strings.ToLower(opts.Version)))
+	}
+	if opts.User != "" || opts.Channel != "" {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": packages.PropertyTypeFile,
+		}
+		propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_file.id"))
+
+		count := 0
+		propsCondBlock := builder.NewCond()
+		if opts.User != "" {
+			count++
+			propsCondBlock = propsCondBlock.Or(builder.Eq{"package_property.name": conan_module.PropertyRecipeUser}.And(buildCondition("package_property.value", opts.User)))
+		}
+		if opts.Channel != "" {
+			count++
+			propsCondBlock = propsCondBlock.Or(builder.Eq{"package_property.name": conan_module.PropertyRecipeChannel}.And(buildCondition("package_property.value", opts.Channel)))
+		}
+		propsCond = propsCond.And(propsCondBlock)
+
+		cond = cond.And(builder.Eq{
+			strconv.Itoa(count): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+		})
+	}
+
+	query := builder.
+		Select("package.name, package_version.version, package_file.id").
+		From("package_file").
+		InnerJoin("package_version", "package_version.id = package_file.version_id").
+		InnerJoin("package", "package.id = package_version.package_id").
+		Where(cond)
+
+	results := make([]struct {
+		Name    string
+		Version string
+		ID      int64
+	}, 0, 5)
+	err := db.GetEngine(ctx).SQL(query).Find(&results)
+	if err != nil {
+		return nil, err
+	}
+
+	unique := make(container.Set[string])
+	for _, info := range results {
+		recipe := fmt.Sprintf("%s/%s", info.Name, info.Version)
+
+		props, _ := packages.GetProperties(ctx, packages.PropertyTypeFile, info.ID)
+		if len(props) > 0 {
+			var (
+				user    = ""
+				channel = ""
+			)
+			for _, prop := range props {
+				if prop.Name == conan_module.PropertyRecipeUser {
+					user = prop.Value
+				}
+				if prop.Name == conan_module.PropertyRecipeChannel {
+					channel = prop.Value
+				}
+			}
+			if user != "" && channel != "" {
+				recipe = fmt.Sprintf("%s@%s/%s", recipe, user, channel)
+			}
+		}
+
+		unique.Add(recipe)
+	}
+
+	recipes := make([]string, 0, len(unique))
+	for recipe := range unique {
+		recipes = append(recipes, recipe)
+	}
+	return recipes, nil
+}
+
+// GetPackageInfo gets the Conaninfo for a package
+func GetPackageInfo(ctx context.Context, ownerID int64, ref *conan_module.PackageReference) (string, error) {
+	values, err := findPropertyValues(
+		ctx,
+		conan_module.PropertyPackageInfo,
+		ownerID,
+		ref.Recipe.Name,
+		ref.Recipe.Version,
+		map[string]string{
+			conan_module.PropertyRecipeUser:       ref.Recipe.User,
+			conan_module.PropertyRecipeChannel:    ref.Recipe.Channel,
+			conan_module.PropertyRecipeRevision:   ref.Recipe.Revision,
+			conan_module.PropertyPackageReference: ref.Reference,
+			conan_module.PropertyPackageRevision:  ref.Revision,
+		},
+	)
+	if err != nil {
+		return "", err
+	}
+
+	if len(values) == 0 {
+		return "", ErrPackageReferenceNotExist
+	}
+
+	return values[0].Value, nil
+}
diff --git a/models/packages/conda/search.go b/models/packages/conda/search.go
new file mode 100644
index 0000000..887441e
--- /dev/null
+++ b/models/packages/conda/search.go
@@ -0,0 +1,63 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package conda
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	conda_module "code.gitea.io/gitea/modules/packages/conda"
+
+	"xorm.io/builder"
+)
+
+type FileSearchOptions struct {
+	OwnerID  int64
+	Channel  string
+	Subdir   string
+	Filename string
+}
+
+// SearchFiles gets all files matching the search options
+func SearchFiles(ctx context.Context, opts *FileSearchOptions) ([]*packages.PackageFile, error) {
+	var cond builder.Cond = builder.Eq{
+		"package.type":                packages.TypeConda,
+		"package.owner_id":            opts.OwnerID,
+		"package_version.is_internal": false,
+	}
+
+	if opts.Filename != "" {
+		cond = cond.And(builder.Eq{
+			"package_file.lower_name": strings.ToLower(opts.Filename),
+		})
+	}
+
+	var versionPropsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypePackage,
+		"package_property.name":     conda_module.PropertyChannel,
+		"package_property.value":    opts.Channel,
+	}
+
+	cond = cond.And(builder.In("package.id", builder.Select("package_property.ref_id").Where(versionPropsCond).From("package_property")))
+
+	var filePropsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypeFile,
+		"package_property.name":     conda_module.PropertySubdir,
+		"package_property.value":    opts.Subdir,
+	}
+
+	cond = cond.And(builder.In("package_file.id", builder.Select("package_property.ref_id").Where(filePropsCond).From("package_property")))
+
+	sess := db.GetEngine(ctx).
+		Select("package_file.*").
+		Table("package_file").
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(cond)
+
+	pfs := make([]*packages.PackageFile, 0, 10)
+	return pfs, sess.Find(&pfs)
+}
diff --git a/models/packages/container/const.go b/models/packages/container/const.go
new file mode 100644
index 0000000..0dfbda0
--- /dev/null
+++ b/models/packages/container/const.go
@@ -0,0 +1,9 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+const (
+	ManifestFilename = "manifest.json"
+	UploadVersion    = "_upload"
+)
diff --git a/models/packages/container/search.go b/models/packages/container/search.go
new file mode 100644
index 0000000..5df3511
--- /dev/null
+++ b/models/packages/container/search.go
@@ -0,0 +1,285 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package container
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	user_model "code.gitea.io/gitea/models/user"
+	container_module "code.gitea.io/gitea/modules/packages/container"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+var ErrContainerBlobNotExist = util.NewNotExistErrorf("container blob does not exist")
+
+type BlobSearchOptions struct {
+	OwnerID    int64
+	Image      string
+	Digest     string
+	Tag        string
+	IsManifest bool
+	Repository string
+}
+
+func (opts *BlobSearchOptions) toConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"package.type": packages.TypeContainer,
+	}
+
+	if opts.OwnerID != 0 {
+		cond = cond.And(builder.Eq{"package.owner_id": opts.OwnerID})
+	}
+	if opts.Image != "" {
+		cond = cond.And(builder.Eq{"package.lower_name": strings.ToLower(opts.Image)})
+	}
+	if opts.Tag != "" {
+		cond = cond.And(builder.Eq{"package_version.lower_version": strings.ToLower(opts.Tag)})
+	}
+	if opts.IsManifest {
+		cond = cond.And(builder.Eq{"package_file.lower_name": ManifestFilename})
+	}
+	if opts.Digest != "" {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": packages.PropertyTypeFile,
+			"package_property.name":     container_module.PropertyDigest,
+			"package_property.value":    opts.Digest,
+		}
+
+		cond = cond.And(builder.In("package_file.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property")))
+	}
+	if opts.Repository != "" {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": packages.PropertyTypePackage,
+			"package_property.name":     container_module.PropertyRepository,
+			"package_property.value":    opts.Repository,
+		}
+
+		cond = cond.And(builder.In("package.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property")))
+	}
+
+	return cond
+}
+
+// GetContainerBlob gets the container blob matching the blob search options
+// If multiple matching blobs are found (manifests with the same digest) the first (according to the database) is selected.
+func GetContainerBlob(ctx context.Context, opts *BlobSearchOptions) (*packages.PackageFileDescriptor, error) {
+	pfds, err := getContainerBlobsLimit(ctx, opts, 1)
+	if err != nil {
+		return nil, err
+	}
+	if len(pfds) != 1 {
+		return nil, ErrContainerBlobNotExist
+	}
+
+	return pfds[0], nil
+}
+
+// GetContainerBlobs gets the container blobs matching the blob search options
+func GetContainerBlobs(ctx context.Context, opts *BlobSearchOptions) ([]*packages.PackageFileDescriptor, error) {
+	return getContainerBlobsLimit(ctx, opts, 0)
+}
+
+func getContainerBlobsLimit(ctx context.Context, opts *BlobSearchOptions, limit int) ([]*packages.PackageFileDescriptor, error) {
+	pfs := make([]*packages.PackageFile, 0, limit)
+	sess := db.GetEngine(ctx).
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(opts.toConds())
+
+	if limit > 0 {
+		sess = sess.Limit(limit)
+	}
+
+	if err := sess.Find(&pfs); err != nil {
+		return nil, err
+	}
+
+	return packages.GetPackageFileDescriptors(ctx, pfs)
+}
+
+// GetManifestVersions gets all package versions representing the matching manifest
+func GetManifestVersions(ctx context.Context, opts *BlobSearchOptions) ([]*packages.PackageVersion, error) {
+	cond := opts.toConds().And(builder.Eq{"package_version.is_internal": false})
+
+	pvs := make([]*packages.PackageVersion, 0, 10)
+	return pvs, db.GetEngine(ctx).
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Join("INNER", "package_file", "package_file.version_id = package_version.id").
+		Where(cond).
+		Find(&pvs)
+}
+
+// GetImageTags gets a sorted list of the tags of an image
+// The result is suitable for the api call.
+func GetImageTags(ctx context.Context, ownerID int64, image string, n int, last string) ([]string, error) {
+	// Short circuit: n == 0 should return an empty list
+	if n == 0 {
+		return []string{}, nil
+	}
+
+	var cond builder.Cond = builder.Eq{
+		"package.type":                packages.TypeContainer,
+		"package.owner_id":            ownerID,
+		"package.lower_name":          strings.ToLower(image),
+		"package_version.is_internal": false,
+	}
+
+	var propsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypeVersion,
+		"package_property.name":     container_module.PropertyManifestTagged,
+	}
+
+	cond = cond.And(builder.In("package_version.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property")))
+
+	if last != "" {
+		cond = cond.And(builder.Gt{"package_version.lower_version": strings.ToLower(last)})
+	}
+
+	sess := db.GetEngine(ctx).
+		Table("package_version").
+		Select("package_version.lower_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(cond).
+		Asc("package_version.lower_version")
+
+	var tags []string
+	if n > 0 {
+		sess = sess.Limit(n)
+
+		tags = make([]string, 0, n)
+	} else {
+		tags = make([]string, 0, 10)
+	}
+
+	return tags, sess.Find(&tags)
+}
+
+type ImageTagsSearchOptions struct {
+	PackageID int64
+	Query     string
+	IsTagged  bool
+	Sort      packages.VersionSort
+	db.Paginator
+}
+
+func (opts *ImageTagsSearchOptions) toConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"package.type":                packages.TypeContainer,
+		"package.id":                  opts.PackageID,
+		"package_version.is_internal": false,
+	}
+
+	if opts.Query != "" {
+		cond = cond.And(builder.Like{"package_version.lower_version", strings.ToLower(opts.Query)})
+	}
+
+	var propsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypeVersion,
+		"package_property.name":     container_module.PropertyManifestTagged,
+	}
+
+	in := builder.In("package_version.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property"))
+
+	if opts.IsTagged {
+		cond = cond.And(in)
+	} else {
+		cond = cond.And(builder.Not{in})
+	}
+
+	return cond
+}
+
+func (opts *ImageTagsSearchOptions) configureOrderBy(e db.Engine) {
+	switch opts.Sort {
+	case packages.SortVersionDesc:
+		e.Desc("package_version.version")
+	case packages.SortVersionAsc:
+		e.Asc("package_version.version")
+	case packages.SortCreatedAsc:
+		e.Asc("package_version.created_unix")
+	default:
+		e.Desc("package_version.created_unix")
+	}
+
+	// Sort by id for stable order with duplicates in the other field
+	e.Asc("package_version.id")
+}
+
+// SearchImageTags gets a sorted list of the tags of an image
+func SearchImageTags(ctx context.Context, opts *ImageTagsSearchOptions) ([]*packages.PackageVersion, int64, error) {
+	sess := db.GetEngine(ctx).
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(opts.toConds())
+
+	opts.configureOrderBy(sess)
+
+	if opts.Paginator != nil {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	pvs := make([]*packages.PackageVersion, 0, 10)
+	count, err := sess.FindAndCount(&pvs)
+	return pvs, count, err
+}
+
+// SearchExpiredUploadedBlobs gets all uploaded blobs which are older than specified
+func SearchExpiredUploadedBlobs(ctx context.Context, olderThan time.Duration) ([]*packages.PackageFile, error) {
+	var cond builder.Cond = builder.Eq{
+		"package_version.is_internal":   true,
+		"package_version.lower_version": UploadVersion,
+		"package.type":                  packages.TypeContainer,
+	}
+	cond = cond.And(builder.Lt{"package_file.created_unix": time.Now().Add(-olderThan).Unix()})
+
+	var pfs []*packages.PackageFile
+	return pfs, db.GetEngine(ctx).
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(cond).
+		Find(&pfs)
+}
+
+// GetRepositories gets a sorted list of all repositories
+func GetRepositories(ctx context.Context, actor *user_model.User, n int, last string) ([]string, error) {
+	var cond builder.Cond = builder.Eq{
+		"package.type":              packages.TypeContainer,
+		"package_property.ref_type": packages.PropertyTypePackage,
+		"package_property.name":     container_module.PropertyRepository,
+	}
+
+	cond = cond.And(builder.Exists(
+		builder.
+			Select("package_version.id").
+			Where(builder.Eq{"package_version.is_internal": false}.And(builder.Expr("package.id = package_version.package_id"))).
+			From("package_version"),
+	))
+
+	if last != "" {
+		cond = cond.And(builder.Gt{"package_property.value": strings.ToLower(last)})
+	}
+
+	if actor.IsGhost() {
+		actor = nil
+	}
+
+	cond = cond.And(user_model.BuildCanSeeUserCondition(actor))
+
+	sess := db.GetEngine(ctx).
+		Table("package").
+		Select("package_property.value").
+		Join("INNER", "user", "`user`.id = package.owner_id").
+		Join("INNER", "package_property", "package_property.ref_id = package.id").
+		Where(cond).
+		Asc("package_property.value").
+		Limit(n)
+
+	repositories := make([]string, 0, n)
+	return repositories, sess.Find(&repositories)
+}
diff --git a/models/packages/cran/search.go b/models/packages/cran/search.go
new file mode 100644
index 0000000..8a8b52a
--- /dev/null
+++ b/models/packages/cran/search.go
@@ -0,0 +1,90 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package cran
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	cran_module "code.gitea.io/gitea/modules/packages/cran"
+
+	"xorm.io/builder"
+)
+
+type SearchOptions struct {
+	OwnerID  int64
+	FileType string
+	Platform string
+	RVersion string
+	Filename string
+}
+
+func (opts *SearchOptions) toConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"package.type":                packages.TypeCran,
+		"package.owner_id":            opts.OwnerID,
+		"package_version.is_internal": false,
+	}
+
+	if opts.Filename != "" {
+		cond = cond.And(builder.Eq{"package_file.lower_name": strings.ToLower(opts.Filename)})
+	}
+
+	var propsCond builder.Cond = builder.Eq{
+		"package_property.ref_type": packages.PropertyTypeFile,
+	}
+	propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_file.id"))
+
+	count := 1
+	propsCondBlock := builder.Eq{"package_property.name": cran_module.PropertyType}.And(builder.Eq{"package_property.value": opts.FileType})
+
+	if opts.Platform != "" {
+		count += 2
+		propsCondBlock = propsCondBlock.
+			Or(builder.Eq{"package_property.name": cran_module.PropertyPlatform}.And(builder.Eq{"package_property.value": opts.Platform})).
+			Or(builder.Eq{"package_property.name": cran_module.PropertyRVersion}.And(builder.Eq{"package_property.value": opts.RVersion}))
+	}
+
+	propsCond = propsCond.And(propsCondBlock)
+
+	cond = cond.And(builder.Eq{
+		strconv.Itoa(count): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+	})
+
+	return cond
+}
+
+func SearchLatestVersions(ctx context.Context, opts *SearchOptions) ([]*packages.PackageVersion, error) {
+	sess := db.GetEngine(ctx).
+		Table("package_version").
+		Select("package_version.*").
+		Join("LEFT", "package_version pv2", builder.Expr("package_version.package_id = pv2.package_id AND pv2.is_internal = ? AND (package_version.created_unix < pv2.created_unix OR (package_version.created_unix = pv2.created_unix AND package_version.id < pv2.id))", false)).
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Join("INNER", "package_file", "package_file.version_id = package_version.id").
+		Where(opts.toConds().And(builder.Expr("pv2.id IS NULL"))).
+		Asc("package.name")
+
+	pvs := make([]*packages.PackageVersion, 0, 10)
+	return pvs, sess.Find(&pvs)
+}
+
+func SearchFile(ctx context.Context, opts *SearchOptions) (*packages.PackageFile, error) {
+	sess := db.GetEngine(ctx).
+		Table("package_version").
+		Select("package_file.*").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Join("INNER", "package_file", "package_file.version_id = package_version.id").
+		Where(opts.toConds())
+
+	pf := &packages.PackageFile{}
+	if has, err := sess.Get(pf); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, packages.ErrPackageFileNotExist
+	}
+	return pf, nil
+}
diff --git a/models/packages/debian/search.go b/models/packages/debian/search.go
new file mode 100644
index 0000000..abf23e4
--- /dev/null
+++ b/models/packages/debian/search.go
@@ -0,0 +1,157 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package debian
+
+import (
+	"context"
+	"strconv"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/packages"
+	debian_module "code.gitea.io/gitea/modules/packages/debian"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/builder"
+)
+
+type PackageSearchOptions struct {
+	OwnerID      int64
+	Distribution string
+	Component    string
+	Architecture string
+}
+
+func (opts *PackageSearchOptions) toCond() builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"package_file.is_lead":        true,
+		"package.type":                packages.TypeDebian,
+		"package.owner_id":            opts.OwnerID,
+		"package.is_internal":         false,
+		"package_version.is_internal": false,
+	}
+
+	props := make(map[string]string)
+	if opts.Distribution != "" {
+		props[debian_module.PropertyDistribution] = opts.Distribution
+	}
+	if opts.Component != "" {
+		props[debian_module.PropertyComponent] = opts.Component
+	}
+	if opts.Architecture != "" {
+		props[debian_module.PropertyArchitecture] = opts.Architecture
+	}
+
+	if len(props) > 0 {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": packages.PropertyTypeFile,
+		}
+		propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_file.id"))
+
+		propsCondBlock := builder.NewCond()
+		for name, value := range props {
+			propsCondBlock = propsCondBlock.Or(builder.Eq{
+				"package_property.name":  name,
+				"package_property.value": value,
+			})
+		}
+		propsCond = propsCond.And(propsCondBlock)
+
+		cond = cond.And(builder.Eq{
+			strconv.Itoa(len(props)): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+		})
+	}
+
+	return cond
+}
+
+// ExistPackages tests if there are packages matching the search options
+func ExistPackages(ctx context.Context, opts *PackageSearchOptions) (bool, error) {
+	return db.GetEngine(ctx).
+		Table("package_file").
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(opts.toCond()).
+		Exist(new(packages.PackageFile))
+}
+
+// SearchPackages gets the packages matching the search options
+func SearchPackages(ctx context.Context, opts *PackageSearchOptions, iter func(*packages.PackageFileDescriptor)) error {
+	var start int
+	batchSize := setting.Database.IterateBufferSize
+	for {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		default:
+			beans := make([]*packages.PackageFile, 0, batchSize)
+
+			if err := db.GetEngine(ctx).
+				Table("package_file").
+				Select("package_file.*").
+				Join("INNER", "package_version", "package_version.id = package_file.version_id").
+				Join("INNER", "package", "package.id = package_version.package_id").
+				Where(opts.toCond()).
+				Asc("package.lower_name", "package_version.created_unix").
+				Limit(batchSize, start).
+				Find(&beans); err != nil {
+				return err
+			}
+			if len(beans) == 0 {
+				return nil
+			}
+			start += len(beans)
+
+			for _, bean := range beans {
+				pfd, err := packages.GetPackageFileDescriptor(ctx, bean)
+				if err != nil {
+					return err
+				}
+
+				iter(pfd)
+			}
+		}
+	}
+}
+
+// GetDistributions gets all available distributions
+func GetDistributions(ctx context.Context, ownerID int64) ([]string, error) {
+	return packages.GetDistinctPropertyValues(
+		ctx,
+		packages.TypeDebian,
+		ownerID,
+		packages.PropertyTypeFile,
+		debian_module.PropertyDistribution,
+		nil,
+	)
+}
+
+// GetComponents gets all available components for the given distribution
+func GetComponents(ctx context.Context, ownerID int64, distribution string) ([]string, error) {
+	return packages.GetDistinctPropertyValues(
+		ctx,
+		packages.TypeDebian,
+		ownerID,
+		packages.PropertyTypeFile,
+		debian_module.PropertyComponent,
+		&packages.DistinctPropertyDependency{
+			Name:  debian_module.PropertyDistribution,
+			Value: distribution,
+		},
+	)
+}
+
+// GetArchitectures gets all available architectures for the given distribution
+func GetArchitectures(ctx context.Context, ownerID int64, distribution string) ([]string, error) {
+	return packages.GetDistinctPropertyValues(
+		ctx,
+		packages.TypeDebian,
+		ownerID,
+		packages.PropertyTypeFile,
+		debian_module.PropertyArchitecture,
+		&packages.DistinctPropertyDependency{
+			Name:  debian_module.PropertyDistribution,
+			Value: distribution,
+		},
+	)
+}
diff --git a/models/packages/debian/search_test.go b/models/packages/debian/search_test.go
new file mode 100644
index 0000000..104a014
--- /dev/null
+++ b/models/packages/debian/search_test.go
@@ -0,0 +1,93 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package debian
+
+import (
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/packages"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+	packages_service "code.gitea.io/gitea/services/packages"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
+
+func preparePackage(t *testing.T, owner *user_model.User, name string) {
+	t.Helper()
+
+	data, err := packages.CreateHashedBufferFromReader(strings.NewReader("data"))
+	require.NoError(t, err)
+
+	_, _, err = packages_service.CreatePackageOrAddFileToExisting(
+		db.DefaultContext,
+		&packages_service.PackageCreationInfo{
+			PackageInfo: packages_service.PackageInfo{
+				Owner:       owner,
+				PackageType: packages_model.TypeDebian,
+				Name:        name,
+			},
+			Creator: owner,
+		},
+		&packages_service.PackageFileCreationInfo{
+			PackageFileInfo: packages_service.PackageFileInfo{
+				Filename: name,
+			},
+			Data:    data,
+			Creator: owner,
+			IsLead:  true,
+		},
+	)
+
+	require.NoError(t, err)
+}
+
+func TestSearchPackages(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	defer test.MockVariableValue(&setting.Database.IterateBufferSize, 1)()
+
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	user3 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+
+	preparePackage(t, user2, "debian-1")
+	preparePackage(t, user2, "debian-2")
+	preparePackage(t, user3, "debian-1")
+
+	packageFiles := []string{}
+	require.NoError(t, SearchPackages(db.DefaultContext, &PackageSearchOptions{
+		OwnerID: user2.ID,
+	}, func(pfd *packages_model.PackageFileDescriptor) {
+		assert.NotNil(t, pfd)
+		packageFiles = append(packageFiles, pfd.File.Name)
+	}))
+
+	assert.Len(t, packageFiles, 2)
+	assert.Contains(t, packageFiles, "debian-1")
+	assert.Contains(t, packageFiles, "debian-2")
+
+	packageFiles = []string{}
+	require.NoError(t, SearchPackages(db.DefaultContext, &PackageSearchOptions{
+		OwnerID: user3.ID,
+	}, func(pfd *packages_model.PackageFileDescriptor) {
+		assert.NotNil(t, pfd)
+		packageFiles = append(packageFiles, pfd.File.Name)
+	}))
+
+	assert.Len(t, packageFiles, 1)
+	assert.Contains(t, packageFiles, "debian-1")
+}
diff --git a/models/packages/descriptor.go b/models/packages/descriptor.go
new file mode 100644
index 0000000..803b73c
--- /dev/null
+++ b/models/packages/descriptor.go
@@ -0,0 +1,260 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/url"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/packages/alpine"
+	"code.gitea.io/gitea/modules/packages/arch"
+	"code.gitea.io/gitea/modules/packages/cargo"
+	"code.gitea.io/gitea/modules/packages/chef"
+	"code.gitea.io/gitea/modules/packages/composer"
+	"code.gitea.io/gitea/modules/packages/conan"
+	"code.gitea.io/gitea/modules/packages/conda"
+	"code.gitea.io/gitea/modules/packages/container"
+	"code.gitea.io/gitea/modules/packages/cran"
+	"code.gitea.io/gitea/modules/packages/debian"
+	"code.gitea.io/gitea/modules/packages/helm"
+	"code.gitea.io/gitea/modules/packages/maven"
+	"code.gitea.io/gitea/modules/packages/npm"
+	"code.gitea.io/gitea/modules/packages/nuget"
+	"code.gitea.io/gitea/modules/packages/pub"
+	"code.gitea.io/gitea/modules/packages/pypi"
+	"code.gitea.io/gitea/modules/packages/rpm"
+	"code.gitea.io/gitea/modules/packages/rubygems"
+	"code.gitea.io/gitea/modules/packages/swift"
+	"code.gitea.io/gitea/modules/packages/vagrant"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/hashicorp/go-version"
+)
+
+// PackagePropertyList is a list of package properties
+type PackagePropertyList []*PackageProperty
+
+// GetByName gets the first property value with the specific name
+func (l PackagePropertyList) GetByName(name string) string {
+	for _, pp := range l {
+		if pp.Name == name {
+			return pp.Value
+		}
+	}
+	return ""
+}
+
+// PackageDescriptor describes a package
+type PackageDescriptor struct {
+	Package           *Package
+	Owner             *user_model.User
+	Repository        *repo_model.Repository
+	Version           *PackageVersion
+	SemVer            *version.Version
+	Creator           *user_model.User
+	PackageProperties PackagePropertyList
+	VersionProperties PackagePropertyList
+	Metadata          any
+	Files             []*PackageFileDescriptor
+}
+
+// PackageFileDescriptor describes a package file
+type PackageFileDescriptor struct {
+	File       *PackageFile
+	Blob       *PackageBlob
+	Properties PackagePropertyList
+}
+
+// PackageWebLink returns the relative package web link
+func (pd *PackageDescriptor) PackageWebLink() string {
+	return fmt.Sprintf("%s/-/packages/%s/%s", pd.Owner.HomeLink(), string(pd.Package.Type), url.PathEscape(pd.Package.LowerName))
+}
+
+// VersionWebLink returns the relative package version web link
+func (pd *PackageDescriptor) VersionWebLink() string {
+	return fmt.Sprintf("%s/%s", pd.PackageWebLink(), url.PathEscape(pd.Version.LowerVersion))
+}
+
+// PackageHTMLURL returns the absolute package HTML URL
+func (pd *PackageDescriptor) PackageHTMLURL() string {
+	return fmt.Sprintf("%s/-/packages/%s/%s", pd.Owner.HTMLURL(), string(pd.Package.Type), url.PathEscape(pd.Package.LowerName))
+}
+
+// VersionHTMLURL returns the absolute package version HTML URL
+func (pd *PackageDescriptor) VersionHTMLURL() string {
+	return fmt.Sprintf("%s/%s", pd.PackageHTMLURL(), url.PathEscape(pd.Version.LowerVersion))
+}
+
+// CalculateBlobSize returns the total blobs size in bytes
+func (pd *PackageDescriptor) CalculateBlobSize() int64 {
+	size := int64(0)
+	for _, f := range pd.Files {
+		size += f.Blob.Size
+	}
+	return size
+}
+
+// GetPackageDescriptor gets the package description for a version
+func GetPackageDescriptor(ctx context.Context, pv *PackageVersion) (*PackageDescriptor, error) {
+	p, err := GetPackageByID(ctx, pv.PackageID)
+	if err != nil {
+		return nil, err
+	}
+	o, err := user_model.GetUserByID(ctx, p.OwnerID)
+	if err != nil {
+		return nil, err
+	}
+	repository, err := repo_model.GetRepositoryByID(ctx, p.RepoID)
+	if err != nil && !repo_model.IsErrRepoNotExist(err) {
+		return nil, err
+	}
+	creator, err := user_model.GetUserByID(ctx, pv.CreatorID)
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) {
+			creator = user_model.NewGhostUser()
+		} else {
+			return nil, err
+		}
+	}
+	var semVer *version.Version
+	if p.SemverCompatible {
+		semVer, err = version.NewVersion(pv.Version)
+		if err != nil {
+			return nil, err
+		}
+	}
+	pps, err := GetProperties(ctx, PropertyTypePackage, p.ID)
+	if err != nil {
+		return nil, err
+	}
+	pvps, err := GetProperties(ctx, PropertyTypeVersion, pv.ID)
+	if err != nil {
+		return nil, err
+	}
+	pfs, err := GetFilesByVersionID(ctx, pv.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	pfds, err := GetPackageFileDescriptors(ctx, pfs)
+	if err != nil {
+		return nil, err
+	}
+
+	var metadata any
+	switch p.Type {
+	case TypeAlpine:
+		metadata = &alpine.VersionMetadata{}
+	case TypeArch:
+		metadata = &arch.VersionMetadata{}
+	case TypeCargo:
+		metadata = &cargo.Metadata{}
+	case TypeChef:
+		metadata = &chef.Metadata{}
+	case TypeComposer:
+		metadata = &composer.Metadata{}
+	case TypeConan:
+		metadata = &conan.Metadata{}
+	case TypeConda:
+		metadata = &conda.VersionMetadata{}
+	case TypeContainer:
+		metadata = &container.Metadata{}
+	case TypeCran:
+		metadata = &cran.Metadata{}
+	case TypeDebian:
+		metadata = &debian.Metadata{}
+	case TypeGeneric:
+		// generic packages have no metadata
+	case TypeGo:
+		// go packages have no metadata
+	case TypeHelm:
+		metadata = &helm.Metadata{}
+	case TypeNuGet:
+		metadata = &nuget.Metadata{}
+	case TypeNpm:
+		metadata = &npm.Metadata{}
+	case TypeMaven:
+		metadata = &maven.Metadata{}
+	case TypePub:
+		metadata = &pub.Metadata{}
+	case TypePyPI:
+		metadata = &pypi.Metadata{}
+	case TypeRpm:
+		metadata = &rpm.VersionMetadata{}
+	case TypeRubyGems:
+		metadata = &rubygems.Metadata{}
+	case TypeSwift:
+		metadata = &swift.Metadata{}
+	case TypeVagrant:
+		metadata = &vagrant.Metadata{}
+	default:
+		panic(fmt.Sprintf("unknown package type: %s", string(p.Type)))
+	}
+	if metadata != nil {
+		if err := json.Unmarshal([]byte(pv.MetadataJSON), &metadata); err != nil {
+			return nil, err
+		}
+	}
+
+	return &PackageDescriptor{
+		Package:           p,
+		Owner:             o,
+		Repository:        repository,
+		Version:           pv,
+		SemVer:            semVer,
+		Creator:           creator,
+		PackageProperties: PackagePropertyList(pps),
+		VersionProperties: PackagePropertyList(pvps),
+		Metadata:          metadata,
+		Files:             pfds,
+	}, nil
+}
+
+// GetPackageFileDescriptor gets a package file descriptor for a package file
+func GetPackageFileDescriptor(ctx context.Context, pf *PackageFile) (*PackageFileDescriptor, error) {
+	pb, err := GetBlobByID(ctx, pf.BlobID)
+	if err != nil {
+		return nil, err
+	}
+	pfps, err := GetProperties(ctx, PropertyTypeFile, pf.ID)
+	if err != nil {
+		return nil, err
+	}
+	return &PackageFileDescriptor{
+		pf,
+		pb,
+		PackagePropertyList(pfps),
+	}, nil
+}
+
+// GetPackageFileDescriptors gets the package file descriptors for the package files
+func GetPackageFileDescriptors(ctx context.Context, pfs []*PackageFile) ([]*PackageFileDescriptor, error) {
+	pfds := make([]*PackageFileDescriptor, 0, len(pfs))
+	for _, pf := range pfs {
+		pfd, err := GetPackageFileDescriptor(ctx, pf)
+		if err != nil {
+			return nil, err
+		}
+		pfds = append(pfds, pfd)
+	}
+	return pfds, nil
+}
+
+// GetPackageDescriptors gets the package descriptions for the versions
+func GetPackageDescriptors(ctx context.Context, pvs []*PackageVersion) ([]*PackageDescriptor, error) {
+	pds := make([]*PackageDescriptor, 0, len(pvs))
+	for _, pv := range pvs {
+		pd, err := GetPackageDescriptor(ctx, pv)
+		if err != nil {
+			return nil, err
+		}
+		pds = append(pds, pd)
+	}
+	return pds, nil
+}
diff --git a/models/packages/nuget/search.go b/models/packages/nuget/search.go
new file mode 100644
index 0000000..7a505ff
--- /dev/null
+++ b/models/packages/nuget/search.go
@@ -0,0 +1,70 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package nuget
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+
+	"xorm.io/builder"
+)
+
+// SearchVersions gets all versions of packages matching the search options
+func SearchVersions(ctx context.Context, opts *packages_model.PackageSearchOptions) ([]*packages_model.PackageVersion, int64, error) {
+	cond := toConds(opts)
+
+	e := db.GetEngine(ctx)
+
+	total, err := e.
+		Where(cond).
+		Count(&packages_model.Package{})
+	if err != nil {
+		return nil, 0, err
+	}
+
+	inner := builder.
+		Dialect(db.BuilderDialect()). // builder needs the sql dialect to build the Limit() below
+		Select("*").
+		From("package").
+		Where(cond).
+		OrderBy("package.name ASC")
+	if opts.Paginator != nil {
+		skip, take := opts.GetSkipTake()
+		inner = inner.Limit(take, skip)
+	}
+
+	sess := e.
+		Where(opts.ToConds()).
+		Table("package_version").
+		Join("INNER", inner, "package.id = package_version.package_id")
+
+	pvs := make([]*packages_model.PackageVersion, 0, 10)
+	return pvs, total, sess.Find(&pvs)
+}
+
+// CountPackages counts all packages matching the search options
+func CountPackages(ctx context.Context, opts *packages_model.PackageSearchOptions) (int64, error) {
+	return db.GetEngine(ctx).
+		Where(toConds(opts)).
+		Count(&packages_model.Package{})
+}
+
+func toConds(opts *packages_model.PackageSearchOptions) builder.Cond {
+	var cond builder.Cond = builder.Eq{
+		"package.is_internal": opts.IsInternal.Value(),
+		"package.owner_id":    opts.OwnerID,
+		"package.type":        packages_model.TypeNuGet,
+	}
+	if opts.Name.Value != "" {
+		if opts.Name.ExactMatch {
+			cond = cond.And(builder.Eq{"package.lower_name": strings.ToLower(opts.Name.Value)})
+		} else {
+			cond = cond.And(builder.Like{"package.lower_name", strings.ToLower(opts.Name.Value)})
+		}
+	}
+	return cond
+}
diff --git a/models/packages/package.go b/models/packages/package.go
new file mode 100644
index 0000000..364cc2e
--- /dev/null
+++ b/models/packages/package.go
@@ -0,0 +1,351 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+func init() {
+	db.RegisterModel(new(Package))
+}
+
+var (
+	// ErrDuplicatePackage indicates a duplicated package error
+	ErrDuplicatePackage = util.NewAlreadyExistErrorf("package already exists")
+	// ErrPackageNotExist indicates a package not exist error
+	ErrPackageNotExist = util.NewNotExistErrorf("package does not exist")
+)
+
+// Type of a package
+type Type string
+
+// List of supported packages
+const (
+	TypeAlpine    Type = "alpine"
+	TypeArch      Type = "arch"
+	TypeCargo     Type = "cargo"
+	TypeChef      Type = "chef"
+	TypeComposer  Type = "composer"
+	TypeConan     Type = "conan"
+	TypeConda     Type = "conda"
+	TypeContainer Type = "container"
+	TypeCran      Type = "cran"
+	TypeDebian    Type = "debian"
+	TypeGeneric   Type = "generic"
+	TypeGo        Type = "go"
+	TypeHelm      Type = "helm"
+	TypeMaven     Type = "maven"
+	TypeNpm       Type = "npm"
+	TypeNuGet     Type = "nuget"
+	TypePub       Type = "pub"
+	TypePyPI      Type = "pypi"
+	TypeRpm       Type = "rpm"
+	TypeRubyGems  Type = "rubygems"
+	TypeSwift     Type = "swift"
+	TypeVagrant   Type = "vagrant"
+)
+
+var TypeList = []Type{
+	TypeAlpine,
+	TypeArch,
+	TypeCargo,
+	TypeChef,
+	TypeComposer,
+	TypeConan,
+	TypeConda,
+	TypeContainer,
+	TypeCran,
+	TypeDebian,
+	TypeGeneric,
+	TypeGo,
+	TypeHelm,
+	TypeMaven,
+	TypeNpm,
+	TypeNuGet,
+	TypePub,
+	TypePyPI,
+	TypeRpm,
+	TypeRubyGems,
+	TypeSwift,
+	TypeVagrant,
+}
+
+// Name gets the name of the package type
+func (pt Type) Name() string {
+	switch pt {
+	case TypeAlpine:
+		return "Alpine"
+	case TypeArch:
+		return "Arch"
+	case TypeCargo:
+		return "Cargo"
+	case TypeChef:
+		return "Chef"
+	case TypeComposer:
+		return "Composer"
+	case TypeConan:
+		return "Conan"
+	case TypeConda:
+		return "Conda"
+	case TypeContainer:
+		return "Container"
+	case TypeCran:
+		return "CRAN"
+	case TypeDebian:
+		return "Debian"
+	case TypeGeneric:
+		return "Generic"
+	case TypeGo:
+		return "Go"
+	case TypeHelm:
+		return "Helm"
+	case TypeMaven:
+		return "Maven"
+	case TypeNpm:
+		return "npm"
+	case TypeNuGet:
+		return "NuGet"
+	case TypePub:
+		return "Pub"
+	case TypePyPI:
+		return "PyPI"
+	case TypeRpm:
+		return "RPM"
+	case TypeRubyGems:
+		return "RubyGems"
+	case TypeSwift:
+		return "Swift"
+	case TypeVagrant:
+		return "Vagrant"
+	}
+	panic(fmt.Sprintf("unknown package type: %s", string(pt)))
+}
+
+// SVGName gets the name of the package type svg image
+func (pt Type) SVGName() string {
+	switch pt {
+	case TypeAlpine:
+		return "gitea-alpine"
+	case TypeArch:
+		return "gitea-arch"
+	case TypeCargo:
+		return "gitea-cargo"
+	case TypeChef:
+		return "gitea-chef"
+	case TypeComposer:
+		return "gitea-composer"
+	case TypeConan:
+		return "gitea-conan"
+	case TypeConda:
+		return "gitea-conda"
+	case TypeContainer:
+		return "octicon-container"
+	case TypeCran:
+		return "gitea-cran"
+	case TypeDebian:
+		return "gitea-debian"
+	case TypeGeneric:
+		return "octicon-package"
+	case TypeGo:
+		return "gitea-go"
+	case TypeHelm:
+		return "gitea-helm"
+	case TypeMaven:
+		return "gitea-maven"
+	case TypeNpm:
+		return "gitea-npm"
+	case TypeNuGet:
+		return "gitea-nuget"
+	case TypePub:
+		return "gitea-pub"
+	case TypePyPI:
+		return "gitea-python"
+	case TypeRpm:
+		return "gitea-rpm"
+	case TypeRubyGems:
+		return "gitea-rubygems"
+	case TypeSwift:
+		return "gitea-swift"
+	case TypeVagrant:
+		return "gitea-vagrant"
+	}
+	panic(fmt.Sprintf("unknown package type: %s", string(pt)))
+}
+
+// Package represents a package
+type Package struct {
+	ID               int64  `xorm:"pk autoincr"`
+	OwnerID          int64  `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	RepoID           int64  `xorm:"INDEX"`
+	Type             Type   `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	Name             string `xorm:"NOT NULL"`
+	LowerName        string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	SemverCompatible bool   `xorm:"NOT NULL DEFAULT false"`
+	IsInternal       bool   `xorm:"NOT NULL DEFAULT false"`
+}
+
+// TryInsertPackage inserts a package. If a package exists already, ErrDuplicatePackage is returned
+func TryInsertPackage(ctx context.Context, p *Package) (*Package, error) {
+	e := db.GetEngine(ctx)
+
+	existing := &Package{}
+
+	has, err := e.Where(builder.Eq{
+		"owner_id":   p.OwnerID,
+		"type":       p.Type,
+		"lower_name": p.LowerName,
+	}).Get(existing)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return existing, ErrDuplicatePackage
+	}
+	if _, err = e.Insert(p); err != nil {
+		return nil, err
+	}
+	return p, nil
+}
+
+// DeletePackageByID deletes a package by id
+func DeletePackageByID(ctx context.Context, packageID int64) error {
+	n, err := db.GetEngine(ctx).ID(packageID).Delete(&Package{})
+	if n == 0 && err == nil {
+		return ErrPackageNotExist
+	}
+	return err
+}
+
+// SetRepositoryLink sets the linked repository
+func SetRepositoryLink(ctx context.Context, packageID, repoID int64) error {
+	n, err := db.GetEngine(ctx).ID(packageID).Cols("repo_id").Update(&Package{RepoID: repoID})
+	if n == 0 && err == nil {
+		return ErrPackageNotExist
+	}
+	return err
+}
+
+// UnlinkRepositoryFromAllPackages unlinks every package from the repository
+func UnlinkRepositoryFromAllPackages(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Where("repo_id = ?", repoID).Cols("repo_id").Update(&Package{})
+	return err
+}
+
+// GetPackageByID gets a package by id
+func GetPackageByID(ctx context.Context, packageID int64) (*Package, error) {
+	p := &Package{}
+
+	has, err := db.GetEngine(ctx).ID(packageID).Get(p)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageNotExist
+	}
+	return p, nil
+}
+
+// GetPackageByName gets a package by name
+func GetPackageByName(ctx context.Context, ownerID int64, packageType Type, name string) (*Package, error) {
+	var cond builder.Cond = builder.Eq{
+		"package.owner_id":    ownerID,
+		"package.type":        packageType,
+		"package.lower_name":  strings.ToLower(name),
+		"package.is_internal": false,
+	}
+
+	p := &Package{}
+
+	has, err := db.GetEngine(ctx).
+		Where(cond).
+		Get(p)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageNotExist
+	}
+	return p, nil
+}
+
+// GetPackagesByType gets all packages of a specific type
+func GetPackagesByType(ctx context.Context, ownerID int64, packageType Type) ([]*Package, error) {
+	var cond builder.Cond = builder.Eq{
+		"package.owner_id":    ownerID,
+		"package.type":        packageType,
+		"package.is_internal": false,
+	}
+
+	ps := make([]*Package, 0, 10)
+	return ps, db.GetEngine(ctx).
+		Where(cond).
+		Find(&ps)
+}
+
+// FindUnreferencedPackages gets all packages without associated versions
+func FindUnreferencedPackages(ctx context.Context) ([]int64, error) {
+	var pIDs []int64
+	if err := db.GetEngine(ctx).
+		Select("package.id").
+		Table("package").
+		Join("LEFT", "package_version", "package_version.package_id = package.id").
+		Where("package_version.id IS NULL").
+		Find(&pIDs); err != nil {
+		return nil, err
+	}
+	return pIDs, nil
+}
+
+func getPackages(ctx context.Context) *xorm.Session {
+	return db.GetEngine(ctx).
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where("package_version.is_internal = ?", false)
+}
+
+func getOwnerPackages(ctx context.Context, ownerID int64) *xorm.Session {
+	return getPackages(ctx).
+		Where("package.owner_id = ?", ownerID)
+}
+
+// HasOwnerPackages tests if a user/org has accessible packages
+func HasOwnerPackages(ctx context.Context, ownerID int64) (bool, error) {
+	return getOwnerPackages(ctx, ownerID).
+		Exist(&Package{})
+}
+
+// CountOwnerPackages counts user/org accessible packages
+func CountOwnerPackages(ctx context.Context, ownerID int64) (int64, error) {
+	return getOwnerPackages(ctx, ownerID).
+		Distinct("package.id").
+		Count(&Package{})
+}
+
+func getRepositoryPackages(ctx context.Context, repositoryID int64) *xorm.Session {
+	return getPackages(ctx).
+		Where("package.repo_id = ?", repositoryID)
+}
+
+// HasRepositoryPackages tests if a repository has packages
+func HasRepositoryPackages(ctx context.Context, repositoryID int64) (bool, error) {
+	return getRepositoryPackages(ctx, repositoryID).
+		Exist(&PackageVersion{})
+}
+
+// CountRepositoryPackages counts packages of a repository
+func CountRepositoryPackages(ctx context.Context, repositoryID int64) (int64, error) {
+	return getRepositoryPackages(ctx, repositoryID).
+		Distinct("package.id").
+		Count(&Package{})
+}
diff --git a/models/packages/package_blob.go b/models/packages/package_blob.go
new file mode 100644
index 0000000..d9c30b6
--- /dev/null
+++ b/models/packages/package_blob.go
@@ -0,0 +1,154 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"strconv"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrPackageBlobNotExist indicates a package blob not exist error
+var ErrPackageBlobNotExist = util.NewNotExistErrorf("package blob does not exist")
+
+func init() {
+	db.RegisterModel(new(PackageBlob))
+}
+
+// PackageBlob represents a package blob
+type PackageBlob struct {
+	ID          int64              `xorm:"pk autoincr"`
+	Size        int64              `xorm:"NOT NULL DEFAULT 0"`
+	HashMD5     string             `xorm:"hash_md5 char(32) UNIQUE(md5) INDEX NOT NULL"`
+	HashSHA1    string             `xorm:"hash_sha1 char(40) UNIQUE(sha1) INDEX NOT NULL"`
+	HashSHA256  string             `xorm:"hash_sha256 char(64) UNIQUE(sha256) INDEX NOT NULL"`
+	HashSHA512  string             `xorm:"hash_sha512 char(128) UNIQUE(sha512) INDEX NOT NULL"`
+	CreatedUnix timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+}
+
+// GetOrInsertBlob inserts a blob. If the blob exists already the existing blob is returned
+func GetOrInsertBlob(ctx context.Context, pb *PackageBlob) (*PackageBlob, bool, error) {
+	e := db.GetEngine(ctx)
+
+	existing := &PackageBlob{}
+
+	has, err := e.Where(builder.Eq{
+		"size":        pb.Size,
+		"hash_md5":    pb.HashMD5,
+		"hash_sha1":   pb.HashSHA1,
+		"hash_sha256": pb.HashSHA256,
+		"hash_sha512": pb.HashSHA512,
+	}).Get(existing)
+	if err != nil {
+		return nil, false, err
+	}
+	if has {
+		return existing, true, nil
+	}
+	if _, err = e.Insert(pb); err != nil {
+		return nil, false, err
+	}
+	return pb, false, nil
+}
+
+// GetBlobByID gets a blob by id
+func GetBlobByID(ctx context.Context, blobID int64) (*PackageBlob, error) {
+	pb := &PackageBlob{}
+
+	has, err := db.GetEngine(ctx).ID(blobID).Get(pb)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageBlobNotExist
+	}
+	return pb, nil
+}
+
+// ExistPackageBlobWithSHA returns if a package blob exists with the provided sha
+func ExistPackageBlobWithSHA(ctx context.Context, blobSha256 string) (bool, error) {
+	return db.GetEngine(ctx).Exist(&PackageBlob{
+		HashSHA256: blobSha256,
+	})
+}
+
+// FindExpiredUnreferencedBlobs gets all blobs without associated files older than the specific duration
+func FindExpiredUnreferencedBlobs(ctx context.Context, olderThan time.Duration) ([]*PackageBlob, error) {
+	pbs := make([]*PackageBlob, 0, 10)
+	return pbs, db.GetEngine(ctx).
+		Table("package_blob").
+		Join("LEFT", "package_file", "package_file.blob_id = package_blob.id").
+		Where("package_file.id IS NULL AND package_blob.created_unix < ?", time.Now().Add(-olderThan).Unix()).
+		Find(&pbs)
+}
+
+// DeleteBlobByID deletes a blob by id
+func DeleteBlobByID(ctx context.Context, blobID int64) error {
+	_, err := db.GetEngine(ctx).ID(blobID).Delete(&PackageBlob{})
+	return err
+}
+
+// GetTotalBlobSize returns the total blobs size in bytes
+func GetTotalBlobSize(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).
+		SumInt(&PackageBlob{}, "size")
+}
+
+// GetTotalUnreferencedBlobSize returns the total size of all unreferenced blobs in bytes
+func GetTotalUnreferencedBlobSize(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).
+		Table("package_blob").
+		Join("LEFT", "package_file", "package_file.blob_id = package_blob.id").
+		Where("package_file.id IS NULL").
+		SumInt(&PackageBlob{}, "size")
+}
+
+// IsBlobAccessibleForUser tests if the user has access to the blob
+func IsBlobAccessibleForUser(ctx context.Context, blobID int64, user *user_model.User) (bool, error) {
+	if user.IsAdmin {
+		return true, nil
+	}
+
+	maxTeamAuthorize := builder.
+		Select("max(team.authorize)").
+		From("team").
+		InnerJoin("team_user", "team_user.team_id = team.id").
+		Where(builder.Eq{"team_user.uid": user.ID}.And(builder.Expr("team_user.org_id = `user`.id")))
+
+	maxTeamUnitAccessMode := builder.
+		Select("max(team_unit.access_mode)").
+		From("team").
+		InnerJoin("team_user", "team_user.team_id = team.id").
+		InnerJoin("team_unit", "team_unit.team_id = team.id").
+		Where(builder.Eq{"team_user.uid": user.ID, "team_unit.type": unit.TypePackages}.And(builder.Expr("team_user.org_id = `user`.id")))
+
+	cond := builder.Eq{"package_blob.id": blobID}.And(
+		// owner = user
+		builder.Eq{"`user`.id": user.ID}.
+			// user can see owner
+			Or(builder.Eq{"`user`.visibility": structs.VisibleTypePublic}.Or(builder.Eq{"`user`.visibility": structs.VisibleTypeLimited})).
+			// owner is an organization and user has access to it
+			Or(builder.Eq{"`user`.type": user_model.UserTypeOrganization}.
+				And(builder.Lte{strconv.Itoa(int(perm.AccessModeRead)): maxTeamAuthorize}.Or(builder.Lte{strconv.Itoa(int(perm.AccessModeRead)): maxTeamUnitAccessMode}))),
+	)
+
+	return db.GetEngine(ctx).
+		Table("package_blob").
+		Join("INNER", "package_file", "package_file.blob_id = package_blob.id").
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Join("INNER", "user", "`user`.id = package.owner_id").
+		Where(cond).
+		Exist(&PackageBlob{})
+}
diff --git a/models/packages/package_blob_upload.go b/models/packages/package_blob_upload.go
new file mode 100644
index 0000000..4b0e789
--- /dev/null
+++ b/models/packages/package_blob_upload.go
@@ -0,0 +1,79 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrPackageBlobUploadNotExist indicates a package blob upload not exist error
+var ErrPackageBlobUploadNotExist = util.NewNotExistErrorf("package blob upload does not exist")
+
+func init() {
+	db.RegisterModel(new(PackageBlobUpload))
+}
+
+// PackageBlobUpload represents a package blob upload
+type PackageBlobUpload struct {
+	ID             string             `xorm:"pk"`
+	BytesReceived  int64              `xorm:"NOT NULL DEFAULT 0"`
+	HashStateBytes []byte             `xorm:"BLOB"`
+	CreatedUnix    timeutil.TimeStamp `xorm:"created NOT NULL"`
+	UpdatedUnix    timeutil.TimeStamp `xorm:"updated INDEX NOT NULL"`
+}
+
+// CreateBlobUpload inserts a blob upload
+func CreateBlobUpload(ctx context.Context) (*PackageBlobUpload, error) {
+	id, err := util.CryptoRandomString(25)
+	if err != nil {
+		return nil, err
+	}
+
+	pbu := &PackageBlobUpload{
+		ID: strings.ToLower(id),
+	}
+
+	_, err = db.GetEngine(ctx).Insert(pbu)
+	return pbu, err
+}
+
+// GetBlobUploadByID gets a blob upload by id
+func GetBlobUploadByID(ctx context.Context, id string) (*PackageBlobUpload, error) {
+	pbu := &PackageBlobUpload{}
+
+	has, err := db.GetEngine(ctx).ID(id).Get(pbu)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageBlobUploadNotExist
+	}
+	return pbu, nil
+}
+
+// UpdateBlobUpload updates the blob upload
+func UpdateBlobUpload(ctx context.Context, pbu *PackageBlobUpload) error {
+	_, err := db.GetEngine(ctx).ID(pbu.ID).Update(pbu)
+	return err
+}
+
+// DeleteBlobUploadByID deletes the blob upload
+func DeleteBlobUploadByID(ctx context.Context, id string) error {
+	_, err := db.GetEngine(ctx).ID(id).Delete(&PackageBlobUpload{})
+	return err
+}
+
+// FindExpiredBlobUploads gets all expired blob uploads
+func FindExpiredBlobUploads(ctx context.Context, olderThan time.Duration) ([]*PackageBlobUpload, error) {
+	pbus := make([]*PackageBlobUpload, 0, 10)
+	return pbus, db.GetEngine(ctx).
+		Where("updated_unix < ?", time.Now().Add(-olderThan).Unix()).
+		Find(&pbus)
+}
diff --git a/models/packages/package_cleanup_rule.go b/models/packages/package_cleanup_rule.go
new file mode 100644
index 0000000..fa12dec
--- /dev/null
+++ b/models/packages/package_cleanup_rule.go
@@ -0,0 +1,109 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"fmt"
+	"regexp"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+var ErrPackageCleanupRuleNotExist = util.NewNotExistErrorf("package blob does not exist")
+
+func init() {
+	db.RegisterModel(new(PackageCleanupRule))
+}
+
+// PackageCleanupRule represents a rule which describes when to clean up package versions
+type PackageCleanupRule struct {
+	ID                   int64              `xorm:"pk autoincr"`
+	Enabled              bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	OwnerID              int64              `xorm:"UNIQUE(s) INDEX NOT NULL DEFAULT 0"`
+	Type                 Type               `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	KeepCount            int                `xorm:"NOT NULL DEFAULT 0"`
+	KeepPattern          string             `xorm:"NOT NULL DEFAULT ''"`
+	KeepPatternMatcher   *regexp.Regexp     `xorm:"-"`
+	RemoveDays           int                `xorm:"NOT NULL DEFAULT 0"`
+	RemovePattern        string             `xorm:"NOT NULL DEFAULT ''"`
+	RemovePatternMatcher *regexp.Regexp     `xorm:"-"`
+	MatchFullName        bool               `xorm:"NOT NULL DEFAULT false"`
+	CreatedUnix          timeutil.TimeStamp `xorm:"created NOT NULL DEFAULT 0"`
+	UpdatedUnix          timeutil.TimeStamp `xorm:"updated NOT NULL DEFAULT 0"`
+}
+
+func (pcr *PackageCleanupRule) CompiledPattern() error {
+	if pcr.KeepPatternMatcher != nil || pcr.RemovePatternMatcher != nil {
+		return nil
+	}
+
+	if pcr.KeepPattern != "" {
+		var err error
+		pcr.KeepPatternMatcher, err = regexp.Compile(fmt.Sprintf(`(?i)\A%s\z`, pcr.KeepPattern))
+		if err != nil {
+			return err
+		}
+	}
+
+	if pcr.RemovePattern != "" {
+		var err error
+		pcr.RemovePatternMatcher, err = regexp.Compile(fmt.Sprintf(`(?i)\A%s\z`, pcr.RemovePattern))
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func InsertCleanupRule(ctx context.Context, pcr *PackageCleanupRule) (*PackageCleanupRule, error) {
+	return pcr, db.Insert(ctx, pcr)
+}
+
+func GetCleanupRuleByID(ctx context.Context, id int64) (*PackageCleanupRule, error) {
+	pcr := &PackageCleanupRule{}
+
+	has, err := db.GetEngine(ctx).ID(id).Get(pcr)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageCleanupRuleNotExist
+	}
+	return pcr, nil
+}
+
+func UpdateCleanupRule(ctx context.Context, pcr *PackageCleanupRule) error {
+	_, err := db.GetEngine(ctx).ID(pcr.ID).AllCols().Update(pcr)
+	return err
+}
+
+func GetCleanupRulesByOwner(ctx context.Context, ownerID int64) ([]*PackageCleanupRule, error) {
+	pcrs := make([]*PackageCleanupRule, 0, 10)
+	return pcrs, db.GetEngine(ctx).Where("owner_id = ?", ownerID).Find(&pcrs)
+}
+
+func DeleteCleanupRuleByID(ctx context.Context, ruleID int64) error {
+	_, err := db.GetEngine(ctx).ID(ruleID).Delete(&PackageCleanupRule{})
+	return err
+}
+
+func HasOwnerCleanupRuleForPackageType(ctx context.Context, ownerID int64, packageType Type) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("owner_id = ? AND type = ?", ownerID, packageType).
+		Exist(&PackageCleanupRule{})
+}
+
+func IterateEnabledCleanupRules(ctx context.Context, callback func(context.Context, *PackageCleanupRule) error) error {
+	return db.Iterate(
+		ctx,
+		builder.Eq{"enabled": true},
+		callback,
+	)
+}
diff --git a/models/packages/package_file.go b/models/packages/package_file.go
new file mode 100644
index 0000000..1bb6b57
--- /dev/null
+++ b/models/packages/package_file.go
@@ -0,0 +1,232 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"strconv"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+func init() {
+	db.RegisterModel(new(PackageFile))
+}
+
+var (
+	// ErrDuplicatePackageFile indicates a duplicated package file error
+	ErrDuplicatePackageFile = util.NewAlreadyExistErrorf("package file already exists")
+	// ErrPackageFileNotExist indicates a package file not exist error
+	ErrPackageFileNotExist = util.NewNotExistErrorf("package file does not exist")
+)
+
+// EmptyFileKey is a named constant for an empty file key
+const EmptyFileKey = ""
+
+// PackageFile represents a package file
+type PackageFile struct {
+	ID           int64              `xorm:"pk autoincr"`
+	VersionID    int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	BlobID       int64              `xorm:"INDEX NOT NULL"`
+	Name         string             `xorm:"NOT NULL"`
+	LowerName    string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	CompositeKey string             `xorm:"UNIQUE(s) INDEX"`
+	IsLead       bool               `xorm:"NOT NULL DEFAULT false"`
+	CreatedUnix  timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+}
+
+// TryInsertFile inserts a file. If the file exists already ErrDuplicatePackageFile is returned
+func TryInsertFile(ctx context.Context, pf *PackageFile) (*PackageFile, error) {
+	e := db.GetEngine(ctx)
+
+	existing := &PackageFile{}
+
+	has, err := e.Where(builder.Eq{
+		"version_id":    pf.VersionID,
+		"lower_name":    pf.LowerName,
+		"composite_key": pf.CompositeKey,
+	}).Get(existing)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return existing, ErrDuplicatePackageFile
+	}
+	if _, err = e.Insert(pf); err != nil {
+		return nil, err
+	}
+	return pf, nil
+}
+
+// GetFilesByVersionID gets all files of a version
+func GetFilesByVersionID(ctx context.Context, versionID int64) ([]*PackageFile, error) {
+	pfs := make([]*PackageFile, 0, 10)
+	return pfs, db.GetEngine(ctx).Where("version_id = ?", versionID).Find(&pfs)
+}
+
+// GetFileForVersionByID gets a file of a version by id
+func GetFileForVersionByID(ctx context.Context, versionID, fileID int64) (*PackageFile, error) {
+	pf := &PackageFile{
+		VersionID: versionID,
+	}
+
+	has, err := db.GetEngine(ctx).ID(fileID).Get(pf)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageFileNotExist
+	}
+	return pf, nil
+}
+
+// GetFileForVersionByName gets a file of a version by name
+func GetFileForVersionByName(ctx context.Context, versionID int64, name, key string) (*PackageFile, error) {
+	if name == "" {
+		return nil, ErrPackageFileNotExist
+	}
+
+	pf := &PackageFile{}
+
+	has, err := db.GetEngine(ctx).Where(builder.Eq{
+		"version_id":    versionID,
+		"lower_name":    strings.ToLower(name),
+		"composite_key": key,
+	}).Get(pf)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageFileNotExist
+	}
+	return pf, nil
+}
+
+// DeleteFileByID deletes a file
+func DeleteFileByID(ctx context.Context, fileID int64) error {
+	_, err := db.GetEngine(ctx).ID(fileID).Delete(&PackageFile{})
+	return err
+}
+
+// PackageFileSearchOptions are options for SearchXXX methods
+type PackageFileSearchOptions struct {
+	OwnerID       int64
+	PackageType   Type
+	VersionID     int64
+	Query         string
+	CompositeKey  string
+	Properties    map[string]string
+	OlderThan     time.Duration
+	HashAlgorithm string
+	Hash          string
+	db.Paginator
+}
+
+func (opts *PackageFileSearchOptions) toConds() builder.Cond {
+	cond := builder.NewCond()
+
+	if opts.VersionID != 0 {
+		cond = cond.And(builder.Eq{"package_file.version_id": opts.VersionID})
+	} else if opts.OwnerID != 0 || (opts.PackageType != "" && opts.PackageType != "all") {
+		var versionCond builder.Cond = builder.Eq{
+			"package_version.is_internal": false,
+		}
+		if opts.OwnerID != 0 {
+			versionCond = versionCond.And(builder.Eq{"package.owner_id": opts.OwnerID})
+		}
+		if opts.PackageType != "" && opts.PackageType != "all" {
+			versionCond = versionCond.And(builder.Eq{"package.type": opts.PackageType})
+		}
+
+		in := builder.
+			Select("package_version.id").
+			From("package_version").
+			InnerJoin("package", "package.id = package_version.package_id").
+			Where(versionCond)
+
+		cond = cond.And(builder.In("package_file.version_id", in))
+	}
+	if opts.CompositeKey != "" {
+		cond = cond.And(builder.Eq{"package_file.composite_key": opts.CompositeKey})
+	}
+	if opts.Query != "" {
+		cond = cond.And(builder.Like{"package_file.lower_name", strings.ToLower(opts.Query)})
+	}
+
+	if len(opts.Properties) != 0 {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": PropertyTypeFile,
+		}
+		propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_file.id"))
+
+		propsCondBlock := builder.NewCond()
+		for name, value := range opts.Properties {
+			propsCondBlock = propsCondBlock.Or(builder.Eq{
+				"package_property.name":  name,
+				"package_property.value": value,
+			})
+		}
+		propsCond = propsCond.And(propsCondBlock)
+
+		cond = cond.And(builder.Eq{
+			strconv.Itoa(len(opts.Properties)): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+		})
+	}
+
+	if opts.OlderThan != 0 {
+		cond = cond.And(builder.Lt{"package_file.created_unix": time.Now().Add(-opts.OlderThan).Unix()})
+	}
+
+	if opts.Hash != "" {
+		var field string
+		switch strings.ToLower(opts.HashAlgorithm) {
+		case "md5":
+			field = "package_blob.hash_md5"
+		case "sha1":
+			field = "package_blob.hash_sha1"
+		case "sha256":
+			field = "package_blob.hash_sha256"
+		case "sha512":
+			fallthrough
+		default: // default to SHA512 if not specified or unknown
+			field = "package_blob.hash_sha512"
+		}
+		innerCond := builder.
+			Expr("package_blob.id = package_file.blob_id").
+			And(builder.Eq{field: opts.Hash})
+		cond = cond.And(builder.Exists(builder.Select("package_blob.id").From("package_blob").Where(innerCond)))
+	}
+
+	return cond
+}
+
+// SearchFiles gets all files of packages matching the search options
+func SearchFiles(ctx context.Context, opts *PackageFileSearchOptions) ([]*PackageFile, int64, error) {
+	sess := db.GetEngine(ctx).
+		Where(opts.toConds())
+
+	if opts.Paginator != nil {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	pfs := make([]*PackageFile, 0, 10)
+	count, err := sess.FindAndCount(&pfs)
+	return pfs, count, err
+}
+
+// CalculateFileSize sums up all blob sizes matching the search options.
+// It does NOT respect the deduplication of blobs.
+func CalculateFileSize(ctx context.Context, opts *PackageFileSearchOptions) (int64, error) {
+	return db.GetEngine(ctx).
+		Table("package_file").
+		Where(opts.toConds()).
+		Join("INNER", "package_blob", "package_blob.id = package_file.blob_id").
+		SumInt(new(PackageBlob), "size")
+}
diff --git a/models/packages/package_property.go b/models/packages/package_property.go
new file mode 100644
index 0000000..e017001
--- /dev/null
+++ b/models/packages/package_property.go
@@ -0,0 +1,121 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+)
+
+func init() {
+	db.RegisterModel(new(PackageProperty))
+}
+
+type PropertyType int64
+
+const (
+	// PropertyTypeVersion means the reference is a package version
+	PropertyTypeVersion PropertyType = iota // 0
+	// PropertyTypeFile means the reference is a package file
+	PropertyTypeFile // 1
+	// PropertyTypePackage means the reference is a package
+	PropertyTypePackage // 2
+)
+
+// PackageProperty represents a property of a package, version or file
+type PackageProperty struct {
+	ID      int64        `xorm:"pk autoincr"`
+	RefType PropertyType `xorm:"INDEX NOT NULL"`
+	RefID   int64        `xorm:"INDEX NOT NULL"`
+	Name    string       `xorm:"INDEX NOT NULL"`
+	Value   string       `xorm:"TEXT NOT NULL"`
+}
+
+// InsertProperty creates a property
+func InsertProperty(ctx context.Context, refType PropertyType, refID int64, name, value string) (*PackageProperty, error) {
+	pp := &PackageProperty{
+		RefType: refType,
+		RefID:   refID,
+		Name:    name,
+		Value:   value,
+	}
+
+	_, err := db.GetEngine(ctx).Insert(pp)
+	return pp, err
+}
+
+// GetProperties gets all properties
+func GetProperties(ctx context.Context, refType PropertyType, refID int64) ([]*PackageProperty, error) {
+	pps := make([]*PackageProperty, 0, 10)
+	return pps, db.GetEngine(ctx).Where("ref_type = ? AND ref_id = ?", refType, refID).Find(&pps)
+}
+
+// GetPropertiesByName gets all properties with a specific name
+func GetPropertiesByName(ctx context.Context, refType PropertyType, refID int64, name string) ([]*PackageProperty, error) {
+	pps := make([]*PackageProperty, 0, 10)
+	return pps, db.GetEngine(ctx).Where("ref_type = ? AND ref_id = ? AND name = ?", refType, refID, name).Find(&pps)
+}
+
+// UpdateProperty updates a property
+func UpdateProperty(ctx context.Context, pp *PackageProperty) error {
+	_, err := db.GetEngine(ctx).ID(pp.ID).Update(pp)
+	return err
+}
+
+// DeleteAllProperties deletes all properties of a ref
+func DeleteAllProperties(ctx context.Context, refType PropertyType, refID int64) error {
+	_, err := db.GetEngine(ctx).Where("ref_type = ? AND ref_id = ?", refType, refID).Delete(&PackageProperty{})
+	return err
+}
+
+// DeletePropertyByID deletes a property
+func DeletePropertyByID(ctx context.Context, propertyID int64) error {
+	_, err := db.GetEngine(ctx).ID(propertyID).Delete(&PackageProperty{})
+	return err
+}
+
+// DeletePropertyByName deletes properties by name
+func DeletePropertyByName(ctx context.Context, refType PropertyType, refID int64, name string) error {
+	_, err := db.GetEngine(ctx).Where("ref_type = ? AND ref_id = ? AND name = ?", refType, refID, name).Delete(&PackageProperty{})
+	return err
+}
+
+type DistinctPropertyDependency struct {
+	Name  string
+	Value string
+}
+
+// GetDistinctPropertyValues returns all distinct property values for a given type.
+// Optional: Search only in dependence of another property.
+func GetDistinctPropertyValues(ctx context.Context, packageType Type, ownerID int64, refType PropertyType, propertyName string, dep *DistinctPropertyDependency) ([]string, error) {
+	var cond builder.Cond = builder.Eq{
+		"package_property.ref_type": refType,
+		"package_property.name":     propertyName,
+		"package.type":              packageType,
+		"package.owner_id":          ownerID,
+	}
+	if dep != nil {
+		innerCond := builder.
+			Expr("pp.ref_id = package_property.ref_id").
+			And(builder.Eq{
+				"pp.ref_type": refType,
+				"pp.name":     dep.Name,
+				"pp.value":    dep.Value,
+			})
+		cond = cond.And(builder.Exists(builder.Select("pp.ref_id").From("package_property pp").Where(innerCond)))
+	}
+
+	values := make([]string, 0, 5)
+	return values, db.GetEngine(ctx).
+		Table("package_property").
+		Distinct("package_property.value").
+		Join("INNER", "package_file", "package_file.id = package_property.ref_id").
+		Join("INNER", "package_version", "package_version.id = package_file.version_id").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(cond).
+		Find(&values)
+}
diff --git a/models/packages/package_test.go b/models/packages/package_test.go
new file mode 100644
index 0000000..1c96e08
--- /dev/null
+++ b/models/packages/package_test.go
@@ -0,0 +1,319 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	packages_model "code.gitea.io/gitea/models/packages"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
+
+func prepareExamplePackage(t *testing.T) *packages_model.Package {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+
+	p0 := &packages_model.Package{
+		OwnerID:   owner.ID,
+		RepoID:    repo.ID,
+		LowerName: "package",
+		Type:      packages_model.TypeGeneric,
+	}
+
+	p, err := packages_model.TryInsertPackage(db.DefaultContext, p0)
+	require.NotNil(t, p)
+	require.NoError(t, err)
+	require.Equal(t, *p0, *p)
+	return p
+}
+
+func deletePackage(t *testing.T, p *packages_model.Package) {
+	err := packages_model.DeletePackageByID(db.DefaultContext, p.ID)
+	require.NoError(t, err)
+}
+
+func TestTryInsertPackage(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	p0 := &packages_model.Package{
+		OwnerID:   owner.ID,
+		LowerName: "package",
+	}
+
+	// Insert package should return the package and yield no error
+	p, err := packages_model.TryInsertPackage(db.DefaultContext, p0)
+	require.NotNil(t, p)
+	require.NoError(t, err)
+	require.Equal(t, *p0, *p)
+
+	// Insert same package again should return the same package and yield ErrDuplicatePackage
+	p, err = packages_model.TryInsertPackage(db.DefaultContext, p0)
+	require.NotNil(t, p)
+	require.IsType(t, packages_model.ErrDuplicatePackage, err)
+	require.Equal(t, *p0, *p)
+
+	err = packages_model.DeletePackageByID(db.DefaultContext, p0.ID)
+	require.NoError(t, err)
+}
+
+func TestGetPackageByID(t *testing.T) {
+	p0 := prepareExamplePackage(t)
+
+	// Get package should return package and yield no error
+	p, err := packages_model.GetPackageByID(db.DefaultContext, p0.ID)
+	require.NotNil(t, p)
+	require.Equal(t, *p0, *p)
+	require.NoError(t, err)
+
+	// Get package with non-existng ID should yield ErrPackageNotExist
+	p, err = packages_model.GetPackageByID(db.DefaultContext, 999)
+	require.Nil(t, p)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+
+	deletePackage(t, p0)
+}
+
+func TestDeletePackageByID(t *testing.T) {
+	p0 := prepareExamplePackage(t)
+
+	// Delete existing package should yield no error
+	err := packages_model.DeletePackageByID(db.DefaultContext, p0.ID)
+	require.NoError(t, err)
+
+	// Delete (now) non-existing package should yield ErrPackageNotExist
+	err = packages_model.DeletePackageByID(db.DefaultContext, p0.ID)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+}
+
+func TestSetRepositoryLink(t *testing.T) {
+	p0 := prepareExamplePackage(t)
+
+	// Set repository link to package should yield no error and package RepoID should be updated
+	err := packages_model.SetRepositoryLink(db.DefaultContext, p0.ID, 5)
+	require.NoError(t, err)
+
+	p, err := packages_model.GetPackageByID(db.DefaultContext, p0.ID)
+	require.NoError(t, err)
+	require.EqualValues(t, 5, p.RepoID)
+
+	// Set repository link to non-existing package should yied ErrPackageNotExist
+	err = packages_model.SetRepositoryLink(db.DefaultContext, 999, 5)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+
+	deletePackage(t, p0)
+}
+
+func TestUnlinkRepositoryFromAllPackages(t *testing.T) {
+	p0 := prepareExamplePackage(t)
+
+	// Unlink repository from all packages should yield no error and package with p0.ID should have RepoID 0
+	err := packages_model.UnlinkRepositoryFromAllPackages(db.DefaultContext, p0.RepoID)
+	require.NoError(t, err)
+
+	p, err := packages_model.GetPackageByID(db.DefaultContext, p0.ID)
+	require.NoError(t, err)
+	require.EqualValues(t, 0, p.RepoID)
+
+	// Unlink repository again from all packages should also yield no error
+	err = packages_model.UnlinkRepositoryFromAllPackages(db.DefaultContext, p0.RepoID)
+	require.NoError(t, err)
+
+	deletePackage(t, p0)
+}
+
+func TestGetPackageByName(t *testing.T) {
+	p0 := prepareExamplePackage(t)
+
+	// Get package should return package and yield no error
+	p, err := packages_model.GetPackageByName(db.DefaultContext, p0.OwnerID, p0.Type, p0.LowerName)
+	require.NotNil(t, p)
+	require.Equal(t, *p0, *p)
+	require.NoError(t, err)
+
+	// Get package with uppercase name should return package and yield no error
+	p, err = packages_model.GetPackageByName(db.DefaultContext, p0.OwnerID, p0.Type, "Package")
+	require.NotNil(t, p)
+	require.Equal(t, *p0, *p)
+	require.NoError(t, err)
+
+	// Get package with wrong owner ID, type or name should return no package and yield ErrPackageNotExist
+	p, err = packages_model.GetPackageByName(db.DefaultContext, 999, p0.Type, p0.LowerName)
+	require.Nil(t, p)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+	p, err = packages_model.GetPackageByName(db.DefaultContext, p0.OwnerID, packages_model.TypeDebian, p0.LowerName)
+	require.Nil(t, p)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+	p, err = packages_model.GetPackageByName(db.DefaultContext, p0.OwnerID, p0.Type, "package1")
+	require.Nil(t, p)
+	require.Error(t, err)
+	require.IsType(t, packages_model.ErrPackageNotExist, err)
+
+	deletePackage(t, p0)
+}
+
+func TestHasCountPackages(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+
+	p, err := packages_model.TryInsertPackage(db.DefaultContext, &packages_model.Package{
+		OwnerID:   owner.ID,
+		RepoID:    repo.ID,
+		LowerName: "package",
+	})
+	require.NotNil(t, p)
+	require.NoError(t, err)
+
+	// A package without package versions gets automatically cleaned up and should return false for owner
+	has, err := packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err := packages_model.CountOwnerPackages(db.DefaultContext, owner.ID)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+
+	// A package without package versions gets automatically cleaned up and should return false for repository
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, repo.ID)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, repo.ID)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+
+	pv, err := packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		LowerVersion: "internal",
+		IsInternal:   true,
+	})
+	require.NotNil(t, pv)
+	require.NoError(t, err)
+
+	// A package with an internal package version gets automatically cleaned up and should return false
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountOwnerPackages(db.DefaultContext, owner.ID)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, repo.ID)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, repo.ID)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+
+	pv, err = packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		LowerVersion: "normal",
+		IsInternal:   false,
+	})
+	require.NotNil(t, pv)
+	require.NoError(t, err)
+
+	// A package with a normal package version should return true
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountOwnerPackages(db.DefaultContext, owner.ID)
+	require.EqualValues(t, 1, count)
+	require.NoError(t, err)
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, repo.ID)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, repo.ID)
+	require.EqualValues(t, 1, count)
+	require.NoError(t, err)
+
+	pv2, err := packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p.ID,
+		LowerVersion: "normal2",
+		IsInternal:   false,
+	})
+	require.NotNil(t, pv2)
+	require.NoError(t, err)
+
+	// A package withmultiple package versions should be counted only once
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountOwnerPackages(db.DefaultContext, owner.ID)
+	require.EqualValues(t, 1, count)
+	require.NoError(t, err)
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, repo.ID)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, repo.ID)
+	require.EqualValues(t, 1, count)
+	require.NoError(t, err)
+
+	// For owner ID 0 there should be no packages
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, 0)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountOwnerPackages(db.DefaultContext, 0)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+
+	// For repo ID 0 there should be no packages
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, 0)
+	require.False(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, 0)
+	require.EqualValues(t, 0, count)
+	require.NoError(t, err)
+
+	p1, err := packages_model.TryInsertPackage(db.DefaultContext, &packages_model.Package{
+		OwnerID:   owner.ID,
+		LowerName: "package0",
+	})
+	require.NotNil(t, p1)
+	require.NoError(t, err)
+	p1v, err := packages_model.GetOrInsertVersion(db.DefaultContext, &packages_model.PackageVersion{
+		PackageID:    p1.ID,
+		LowerVersion: "normal",
+		IsInternal:   false,
+	})
+	require.NotNil(t, p1v)
+	require.NoError(t, err)
+
+	// Owner owner.ID should have two packages now
+	has, err = packages_model.HasOwnerPackages(db.DefaultContext, owner.ID)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountOwnerPackages(db.DefaultContext, owner.ID)
+	require.EqualValues(t, 2, count)
+	require.NoError(t, err)
+
+	// For repo ID 0 there should be now one package, because p1 is not assigned to a repo
+	has, err = packages_model.HasRepositoryPackages(db.DefaultContext, 0)
+	require.True(t, has)
+	require.NoError(t, err)
+	count, err = packages_model.CountRepositoryPackages(db.DefaultContext, 0)
+	require.EqualValues(t, 1, count)
+	require.NoError(t, err)
+}
diff --git a/models/packages/package_version.go b/models/packages/package_version.go
new file mode 100644
index 0000000..278e8e3
--- /dev/null
+++ b/models/packages/package_version.go
@@ -0,0 +1,348 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package packages
+
+import (
+	"context"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrDuplicatePackageVersion indicates a duplicated package version error
+var ErrDuplicatePackageVersion = util.NewAlreadyExistErrorf("package version already exists")
+
+func init() {
+	db.RegisterModel(new(PackageVersion))
+}
+
+// PackageVersion represents a package version
+type PackageVersion struct {
+	ID            int64              `xorm:"pk autoincr"`
+	PackageID     int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	CreatorID     int64              `xorm:"NOT NULL DEFAULT 0"`
+	Version       string             `xorm:"NOT NULL"`
+	LowerVersion  string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	CreatedUnix   timeutil.TimeStamp `xorm:"created INDEX NOT NULL"`
+	IsInternal    bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	MetadataJSON  string             `xorm:"metadata_json LONGTEXT"`
+	DownloadCount int64              `xorm:"NOT NULL DEFAULT 0"`
+}
+
+// GetOrInsertVersion inserts a version. If the same version exist already ErrDuplicatePackageVersion is returned
+func GetOrInsertVersion(ctx context.Context, pv *PackageVersion) (*PackageVersion, error) {
+	e := db.GetEngine(ctx)
+
+	existing := &PackageVersion{}
+
+	has, err := e.Where(builder.Eq{
+		"package_id":    pv.PackageID,
+		"lower_version": pv.LowerVersion,
+	}).Get(existing)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return existing, ErrDuplicatePackageVersion
+	}
+	if _, err = e.Insert(pv); err != nil {
+		return nil, err
+	}
+	return pv, nil
+}
+
+// UpdateVersion updates a version
+func UpdateVersion(ctx context.Context, pv *PackageVersion) error {
+	_, err := db.GetEngine(ctx).ID(pv.ID).Update(pv)
+	return err
+}
+
+// IncrementDownloadCounter increments the download counter of a version
+func IncrementDownloadCounter(ctx context.Context, versionID int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `package_version` SET `download_count` = `download_count` + 1 WHERE `id` = ?", versionID)
+	return err
+}
+
+// GetVersionByID gets a version by id
+func GetVersionByID(ctx context.Context, versionID int64) (*PackageVersion, error) {
+	pv := &PackageVersion{}
+
+	has, err := db.GetEngine(ctx).ID(versionID).Get(pv)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrPackageNotExist
+	}
+	return pv, nil
+}
+
+// GetVersionByNameAndVersion gets a version by name and version number
+func GetVersionByNameAndVersion(ctx context.Context, ownerID int64, packageType Type, name, version string) (*PackageVersion, error) {
+	return getVersionByNameAndVersion(ctx, ownerID, packageType, name, version, false)
+}
+
+// GetInternalVersionByNameAndVersion gets a version by name and version number
+func GetInternalVersionByNameAndVersion(ctx context.Context, ownerID int64, packageType Type, name, version string) (*PackageVersion, error) {
+	return getVersionByNameAndVersion(ctx, ownerID, packageType, name, version, true)
+}
+
+func getVersionByNameAndVersion(ctx context.Context, ownerID int64, packageType Type, name, version string, isInternal bool) (*PackageVersion, error) {
+	pvs, _, err := SearchVersions(ctx, &PackageSearchOptions{
+		OwnerID: ownerID,
+		Type:    packageType,
+		Name: SearchValue{
+			ExactMatch: true,
+			Value:      name,
+		},
+		Version: SearchValue{
+			ExactMatch: true,
+			Value:      version,
+		},
+		IsInternal: optional.Some(isInternal),
+		Paginator:  db.NewAbsoluteListOptions(0, 1),
+	})
+	if err != nil {
+		return nil, err
+	}
+	if len(pvs) == 0 {
+		return nil, ErrPackageNotExist
+	}
+	return pvs[0], nil
+}
+
+// GetVersionsByPackageType gets all versions of a specific type
+func GetVersionsByPackageType(ctx context.Context, ownerID int64, packageType Type) ([]*PackageVersion, error) {
+	pvs, _, err := SearchVersions(ctx, &PackageSearchOptions{
+		OwnerID:    ownerID,
+		Type:       packageType,
+		IsInternal: optional.Some(false),
+	})
+	return pvs, err
+}
+
+// GetVersionsByPackageName gets all versions of a specific package
+func GetVersionsByPackageName(ctx context.Context, ownerID int64, packageType Type, name string) ([]*PackageVersion, error) {
+	pvs, _, err := SearchVersions(ctx, &PackageSearchOptions{
+		OwnerID: ownerID,
+		Type:    packageType,
+		Name: SearchValue{
+			ExactMatch: true,
+			Value:      name,
+		},
+		IsInternal: optional.Some(false),
+	})
+	return pvs, err
+}
+
+// DeleteVersionByID deletes a version by id
+func DeleteVersionByID(ctx context.Context, versionID int64) error {
+	_, err := db.GetEngine(ctx).ID(versionID).Delete(&PackageVersion{})
+	return err
+}
+
+// HasVersionFileReferences checks if there are associated files
+func HasVersionFileReferences(ctx context.Context, versionID int64) (bool, error) {
+	return db.GetEngine(ctx).Get(&PackageFile{
+		VersionID: versionID,
+	})
+}
+
+// SearchValue describes a value to search
+// If ExactMatch is true, the field must match the value otherwise a LIKE search is performed.
+type SearchValue struct {
+	Value      string
+	ExactMatch bool
+}
+
+type VersionSort = string
+
+const (
+	SortNameAsc     VersionSort = "name_asc"
+	SortNameDesc    VersionSort = "name_desc"
+	SortVersionAsc  VersionSort = "version_asc"
+	SortVersionDesc VersionSort = "version_desc"
+	SortCreatedAsc  VersionSort = "created_asc"
+	SortCreatedDesc VersionSort = "created_desc"
+)
+
+// PackageSearchOptions are options for SearchXXX methods
+// All fields optional and are not used if they have their default value (nil, "", 0)
+type PackageSearchOptions struct {
+	OwnerID         int64
+	RepoID          int64
+	Type            Type
+	PackageID       int64
+	Name            SearchValue       // only results with the specific name are found
+	Version         SearchValue       // only results with the specific version are found
+	Properties      map[string]string // only results are found which contain all listed version properties with the specific value
+	IsInternal      optional.Option[bool]
+	HasFileWithName string                // only results are found which are associated with a file with the specific name
+	HasFiles        optional.Option[bool] // only results are found which have associated files
+	Sort            VersionSort
+	db.Paginator
+}
+
+func (opts *PackageSearchOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.IsInternal.Has() {
+		cond = builder.Eq{
+			"package_version.is_internal": opts.IsInternal.Value(),
+		}
+	}
+
+	if opts.OwnerID != 0 {
+		cond = cond.And(builder.Eq{"package.owner_id": opts.OwnerID})
+	}
+	if opts.RepoID != 0 {
+		cond = cond.And(builder.Eq{"package.repo_id": opts.RepoID})
+	}
+	if opts.Type != "" && opts.Type != "all" {
+		cond = cond.And(builder.Eq{"package.type": opts.Type})
+	}
+	if opts.PackageID != 0 {
+		cond = cond.And(builder.Eq{"package.id": opts.PackageID})
+	}
+	if opts.Name.Value != "" {
+		if opts.Name.ExactMatch {
+			cond = cond.And(builder.Eq{"package.lower_name": strings.ToLower(opts.Name.Value)})
+		} else {
+			cond = cond.And(builder.Like{"package.lower_name", strings.ToLower(opts.Name.Value)})
+		}
+	}
+	if opts.Version.Value != "" {
+		if opts.Version.ExactMatch {
+			cond = cond.And(builder.Eq{"package_version.lower_version": strings.ToLower(opts.Version.Value)})
+		} else {
+			cond = cond.And(builder.Like{"package_version.lower_version", strings.ToLower(opts.Version.Value)})
+		}
+	}
+
+	if len(opts.Properties) != 0 {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": PropertyTypeVersion,
+		}
+		propsCond = propsCond.And(builder.Expr("package_property.ref_id = package_version.id"))
+
+		propsCondBlock := builder.NewCond()
+		for name, value := range opts.Properties {
+			propsCondBlock = propsCondBlock.Or(builder.Eq{
+				"package_property.name":  name,
+				"package_property.value": value,
+			})
+		}
+		propsCond = propsCond.And(propsCondBlock)
+
+		cond = cond.And(builder.Eq{
+			strconv.Itoa(len(opts.Properties)): builder.Select("COUNT(*)").Where(propsCond).From("package_property"),
+		})
+	}
+
+	if opts.HasFileWithName != "" {
+		fileCond := builder.Expr("package_file.version_id = package_version.id").And(builder.Eq{"package_file.lower_name": strings.ToLower(opts.HasFileWithName)})
+
+		cond = cond.And(builder.Exists(builder.Select("package_file.id").From("package_file").Where(fileCond)))
+	}
+
+	if opts.HasFiles.Has() {
+		filesCond := builder.Exists(builder.Select("package_file.id").From("package_file").Where(builder.Expr("package_file.version_id = package_version.id")))
+
+		if !opts.HasFiles.Value() {
+			filesCond = builder.Not{filesCond}
+		}
+
+		cond = cond.And(filesCond)
+	}
+
+	return cond
+}
+
+func (opts *PackageSearchOptions) configureOrderBy(e db.Engine) {
+	switch opts.Sort {
+	case SortNameAsc:
+		e.Asc("package.name")
+	case SortNameDesc:
+		e.Desc("package.name")
+	case SortVersionDesc:
+		e.Desc("package_version.version")
+	case SortVersionAsc:
+		e.Asc("package_version.version")
+	case SortCreatedAsc:
+		e.Asc("package_version.created_unix")
+	default:
+		e.Desc("package_version.created_unix")
+	}
+
+	// Sort by id for stable order with duplicates in the other field
+	e.Asc("package_version.id")
+}
+
+// SearchVersions gets all versions of packages matching the search options
+func SearchVersions(ctx context.Context, opts *PackageSearchOptions) ([]*PackageVersion, int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("package_version.*").
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(opts.ToConds())
+
+	opts.configureOrderBy(sess)
+
+	if opts.Paginator != nil {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	pvs := make([]*PackageVersion, 0, 10)
+	count, err := sess.FindAndCount(&pvs)
+	return pvs, count, err
+}
+
+// SearchLatestVersions gets the latest version of every package matching the search options
+func SearchLatestVersions(ctx context.Context, opts *PackageSearchOptions) ([]*PackageVersion, int64, error) {
+	in := builder.
+		Select("MAX(package_version.id)").
+		From("package_version").
+		InnerJoin("package", "package.id = package_version.package_id").
+		Where(opts.ToConds()).
+		GroupBy("package_version.package_id")
+
+	sess := db.GetEngine(ctx).
+		Select("package_version.*").
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Where(builder.In("package_version.id", in))
+
+	opts.configureOrderBy(sess)
+
+	if opts.Paginator != nil {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+
+	pvs := make([]*PackageVersion, 0, 10)
+	count, err := sess.FindAndCount(&pvs)
+	return pvs, count, err
+}
+
+// ExistVersion checks if a version matching the search options exist
+func ExistVersion(ctx context.Context, opts *PackageSearchOptions) (bool, error) {
+	return db.GetEngine(ctx).
+		Where(opts.ToConds()).
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Exist(new(PackageVersion))
+}
+
+// CountVersions counts all versions of packages matching the search options
+func CountVersions(ctx context.Context, opts *PackageSearchOptions) (int64, error) {
+	return db.GetEngine(ctx).
+		Where(opts.ToConds()).
+		Table("package_version").
+		Join("INNER", "package", "package.id = package_version.package_id").
+		Count(new(PackageVersion))
+}
diff --git a/models/packages/rpm/search.go b/models/packages/rpm/search.go
new file mode 100644
index 0000000..e697421
--- /dev/null
+++ b/models/packages/rpm/search.go
@@ -0,0 +1,23 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package rpm
+
+import (
+	"context"
+
+	packages_model "code.gitea.io/gitea/models/packages"
+	rpm_module "code.gitea.io/gitea/modules/packages/rpm"
+)
+
+// GetGroups gets all available groups
+func GetGroups(ctx context.Context, ownerID int64) ([]string, error) {
+	return packages_model.GetDistinctPropertyValues(
+		ctx,
+		packages_model.TypeRpm,
+		ownerID,
+		packages_model.PropertyTypeFile,
+		rpm_module.PropertyGroup,
+		nil,
+	)
+}
diff --git a/models/perm/access/access.go b/models/perm/access/access.go
new file mode 100644
index 0000000..3e2568b
--- /dev/null
+++ b/models/perm/access/access.go
@@ -0,0 +1,250 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package access
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	"code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+// Access represents the highest access level of a user to the repository. The only access type
+// that is not in this table is the real owner of a repository. In case of an organization
+// repository, the members of the owners team are in this table.
+type Access struct {
+	ID     int64 `xorm:"pk autoincr"`
+	UserID int64 `xorm:"UNIQUE(s)"`
+	RepoID int64 `xorm:"UNIQUE(s)"`
+	Mode   perm.AccessMode
+}
+
+func init() {
+	db.RegisterModel(new(Access))
+}
+
+func accessLevel(ctx context.Context, user *user_model.User, repo *repo_model.Repository) (perm.AccessMode, error) {
+	mode := perm.AccessModeNone
+	var userID int64
+	restricted := false
+
+	if user != nil {
+		userID = user.ID
+		restricted = user.IsRestricted
+	}
+
+	if !restricted && !repo.IsPrivate {
+		mode = perm.AccessModeRead
+	}
+
+	if userID == 0 {
+		return mode, nil
+	}
+
+	if userID == repo.OwnerID {
+		return perm.AccessModeOwner, nil
+	}
+
+	a, exist, err := db.Get[Access](ctx, builder.Eq{"user_id": userID, "repo_id": repo.ID})
+	if err != nil {
+		return mode, err
+	} else if !exist {
+		return mode, nil
+	}
+	return a.Mode, nil
+}
+
+func maxAccessMode(modes ...perm.AccessMode) perm.AccessMode {
+	max := perm.AccessModeNone
+	for _, mode := range modes {
+		if mode > max {
+			max = mode
+		}
+	}
+	return max
+}
+
+type userAccess struct {
+	User *user_model.User
+	Mode perm.AccessMode
+}
+
+// updateUserAccess updates an access map so that user has at least mode
+func updateUserAccess(accessMap map[int64]*userAccess, user *user_model.User, mode perm.AccessMode) {
+	if ua, ok := accessMap[user.ID]; ok {
+		ua.Mode = maxAccessMode(ua.Mode, mode)
+	} else {
+		accessMap[user.ID] = &userAccess{User: user, Mode: mode}
+	}
+}
+
+// FIXME: do cross-comparison so reduce deletions and additions to the minimum?
+func refreshAccesses(ctx context.Context, repo *repo_model.Repository, accessMap map[int64]*userAccess) (err error) {
+	minMode := perm.AccessModeRead
+	if err := repo.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("LoadOwner: %w", err)
+	}
+
+	// If the repo isn't private and isn't owned by a organization,
+	// increase the minMode to Write.
+	if !repo.IsPrivate && !repo.Owner.IsOrganization() {
+		minMode = perm.AccessModeWrite
+	}
+
+	newAccesses := make([]Access, 0, len(accessMap))
+	for userID, ua := range accessMap {
+		if ua.Mode < minMode && !ua.User.IsRestricted {
+			continue
+		}
+
+		newAccesses = append(newAccesses, Access{
+			UserID: userID,
+			RepoID: repo.ID,
+			Mode:   ua.Mode,
+		})
+	}
+
+	// Delete old accesses and insert new ones for repository.
+	if _, err = db.DeleteByBean(ctx, &Access{RepoID: repo.ID}); err != nil {
+		return fmt.Errorf("delete old accesses: %w", err)
+	}
+	if len(newAccesses) == 0 {
+		return nil
+	}
+
+	if err = db.Insert(ctx, newAccesses); err != nil {
+		return fmt.Errorf("insert new accesses: %w", err)
+	}
+	return nil
+}
+
+// refreshCollaboratorAccesses retrieves repository collaborations with their access modes.
+func refreshCollaboratorAccesses(ctx context.Context, repoID int64, accessMap map[int64]*userAccess) error {
+	collaborators, err := repo_model.GetCollaborators(ctx, repoID, db.ListOptions{})
+	if err != nil {
+		return fmt.Errorf("getCollaborations: %w", err)
+	}
+	for _, c := range collaborators {
+		if c.User.IsGhost() {
+			continue
+		}
+		updateUserAccess(accessMap, c.User, c.Collaboration.Mode)
+	}
+	return nil
+}
+
+// RecalculateTeamAccesses recalculates new accesses for teams of an organization
+// except the team whose ID is given. It is used to assign a team ID when
+// remove repository from that team.
+func RecalculateTeamAccesses(ctx context.Context, repo *repo_model.Repository, ignTeamID int64) (err error) {
+	accessMap := make(map[int64]*userAccess, 20)
+
+	if err = repo.LoadOwner(ctx); err != nil {
+		return err
+	} else if !repo.Owner.IsOrganization() {
+		return fmt.Errorf("owner is not an organization: %d", repo.OwnerID)
+	}
+
+	if err = refreshCollaboratorAccesses(ctx, repo.ID, accessMap); err != nil {
+		return fmt.Errorf("refreshCollaboratorAccesses: %w", err)
+	}
+
+	teams, err := organization.FindOrgTeams(ctx, repo.Owner.ID)
+	if err != nil {
+		return err
+	}
+
+	for _, t := range teams {
+		if t.ID == ignTeamID {
+			continue
+		}
+
+		// Owner team gets owner access, and skip for teams that do not
+		// have relations with repository.
+		if t.IsOwnerTeam() {
+			t.AccessMode = perm.AccessModeOwner
+		} else if !organization.HasTeamRepo(ctx, t.OrgID, t.ID, repo.ID) {
+			continue
+		}
+
+		if err = t.LoadMembers(ctx); err != nil {
+			return fmt.Errorf("getMembers '%d': %w", t.ID, err)
+		}
+		for _, m := range t.Members {
+			updateUserAccess(accessMap, m, t.AccessMode)
+		}
+	}
+
+	return refreshAccesses(ctx, repo, accessMap)
+}
+
+// RecalculateUserAccess recalculates new access for a single user
+// Usable if we know access only affected one user
+func RecalculateUserAccess(ctx context.Context, repo *repo_model.Repository, uid int64) (err error) {
+	minMode := perm.AccessModeRead
+	if !repo.IsPrivate {
+		minMode = perm.AccessModeWrite
+	}
+
+	accessMode := perm.AccessModeNone
+	e := db.GetEngine(ctx)
+	collaborator, err := repo_model.GetCollaboration(ctx, repo.ID, uid)
+	if err != nil {
+		return err
+	} else if collaborator != nil {
+		accessMode = collaborator.Mode
+	}
+
+	if err = repo.LoadOwner(ctx); err != nil {
+		return err
+	} else if repo.Owner.IsOrganization() {
+		var teams []organization.Team
+		if err := e.Join("INNER", "team_repo", "team_repo.team_id = team.id").
+			Join("INNER", "team_user", "team_user.team_id = team.id").
+			Where("team.org_id = ?", repo.OwnerID).
+			And("team_repo.repo_id=?", repo.ID).
+			And("team_user.uid=?", uid).
+			Find(&teams); err != nil {
+			return err
+		}
+
+		for _, t := range teams {
+			if t.IsOwnerTeam() {
+				t.AccessMode = perm.AccessModeOwner
+			}
+
+			accessMode = maxAccessMode(accessMode, t.AccessMode)
+		}
+	}
+
+	// Delete old user accesses and insert new one for repository.
+	if _, err = e.Delete(&Access{RepoID: repo.ID, UserID: uid}); err != nil {
+		return fmt.Errorf("delete old user accesses: %w", err)
+	} else if accessMode >= minMode {
+		if err = db.Insert(ctx, &Access{RepoID: repo.ID, UserID: uid, Mode: accessMode}); err != nil {
+			return fmt.Errorf("insert new user accesses: %w", err)
+		}
+	}
+	return nil
+}
+
+// RecalculateAccesses recalculates all accesses for repository.
+func RecalculateAccesses(ctx context.Context, repo *repo_model.Repository) error {
+	if repo.Owner.IsOrganization() {
+		return RecalculateTeamAccesses(ctx, repo, 0)
+	}
+
+	accessMap := make(map[int64]*userAccess, 20)
+	if err := refreshCollaboratorAccesses(ctx, repo.ID, accessMap); err != nil {
+		return fmt.Errorf("refreshCollaboratorAccesses: %w", err)
+	}
+	return refreshAccesses(ctx, repo, accessMap)
+}
diff --git a/models/perm/access/access_test.go b/models/perm/access/access_test.go
new file mode 100644
index 0000000..556f513
--- /dev/null
+++ b/models/perm/access/access_test.go
@@ -0,0 +1,127 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package access_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	perm_model "code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAccessLevel(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	user5 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 5})
+	user29 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 29})
+	// A public repository owned by User 2
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	assert.False(t, repo1.IsPrivate)
+	// A private repository owned by Org 3
+	repo3 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+	assert.True(t, repo3.IsPrivate)
+
+	// Another public repository
+	repo4 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	assert.False(t, repo4.IsPrivate)
+	// org. owned private repo
+	repo24 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 24})
+
+	level, err := access_model.AccessLevel(db.DefaultContext, user2, repo1)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeOwner, level)
+
+	level, err = access_model.AccessLevel(db.DefaultContext, user2, repo3)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeOwner, level)
+
+	level, err = access_model.AccessLevel(db.DefaultContext, user5, repo1)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeRead, level)
+
+	level, err = access_model.AccessLevel(db.DefaultContext, user5, repo3)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeNone, level)
+
+	// restricted user has no access to a public repo
+	level, err = access_model.AccessLevel(db.DefaultContext, user29, repo1)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeNone, level)
+
+	// ... unless he's a collaborator
+	level, err = access_model.AccessLevel(db.DefaultContext, user29, repo4)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeWrite, level)
+
+	// ... or a team member
+	level, err = access_model.AccessLevel(db.DefaultContext, user29, repo24)
+	require.NoError(t, err)
+	assert.Equal(t, perm_model.AccessModeRead, level)
+}
+
+func TestHasAccess(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 5})
+	// A public repository owned by User 2
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	assert.False(t, repo1.IsPrivate)
+	// A private repository owned by Org 3
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+	assert.True(t, repo2.IsPrivate)
+
+	has, err := access_model.HasAccess(db.DefaultContext, user1.ID, repo1)
+	require.NoError(t, err)
+	assert.True(t, has)
+
+	_, err = access_model.HasAccess(db.DefaultContext, user1.ID, repo2)
+	require.NoError(t, err)
+
+	_, err = access_model.HasAccess(db.DefaultContext, user2.ID, repo1)
+	require.NoError(t, err)
+
+	_, err = access_model.HasAccess(db.DefaultContext, user2.ID, repo2)
+	require.NoError(t, err)
+}
+
+func TestRepository_RecalculateAccesses(t *testing.T) {
+	// test with organization repo
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+	require.NoError(t, repo1.LoadOwner(db.DefaultContext))
+
+	_, err := db.GetEngine(db.DefaultContext).Delete(&repo_model.Collaboration{UserID: 2, RepoID: 3})
+	require.NoError(t, err)
+	require.NoError(t, access_model.RecalculateAccesses(db.DefaultContext, repo1))
+
+	access := &access_model.Access{UserID: 2, RepoID: 3}
+	has, err := db.GetEngine(db.DefaultContext).Get(access)
+	require.NoError(t, err)
+	assert.True(t, has)
+	assert.Equal(t, perm_model.AccessModeOwner, access.Mode)
+}
+
+func TestRepository_RecalculateAccesses2(t *testing.T) {
+	// test with non-organization repo
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	require.NoError(t, repo1.LoadOwner(db.DefaultContext))
+
+	_, err := db.GetEngine(db.DefaultContext).Delete(&repo_model.Collaboration{UserID: 4, RepoID: 4})
+	require.NoError(t, err)
+	require.NoError(t, access_model.RecalculateAccesses(db.DefaultContext, repo1))
+
+	has, err := db.GetEngine(db.DefaultContext).Get(&access_model.Access{UserID: 4, RepoID: 4})
+	require.NoError(t, err)
+	assert.False(t, has)
+}
diff --git a/models/perm/access/main_test.go b/models/perm/access/main_test.go
new file mode 100644
index 0000000..0a350dc
--- /dev/null
+++ b/models/perm/access/main_test.go
@@ -0,0 +1,20 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package access_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/repo"
+	_ "code.gitea.io/gitea/models/user"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/perm/access/repo_permission.go b/models/perm/access/repo_permission.go
new file mode 100644
index 0000000..7e39627
--- /dev/null
+++ b/models/perm/access/repo_permission.go
@@ -0,0 +1,450 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package access
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	perm_model "code.gitea.io/gitea/models/perm"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+)
+
+// Permission contains all the permissions related variables to a repository for a user
+type Permission struct {
+	AccessMode perm_model.AccessMode
+	Units      []*repo_model.RepoUnit
+	UnitsMode  map[unit.Type]perm_model.AccessMode
+}
+
+// IsOwner returns true if current user is the owner of repository.
+func (p *Permission) IsOwner() bool {
+	return p.AccessMode >= perm_model.AccessModeOwner
+}
+
+// IsAdmin returns true if current user has admin or higher access of repository.
+func (p *Permission) IsAdmin() bool {
+	return p.AccessMode >= perm_model.AccessModeAdmin
+}
+
+// IsGloballyWriteable returns true if the unit is writeable by all users of the instance.
+func (p *Permission) IsGloballyWriteable(unitType unit.Type) bool {
+	for _, u := range p.Units {
+		if u.Type == unitType {
+			return u.DefaultPermissions == repo_model.UnitAccessModeWrite
+		}
+	}
+	return false
+}
+
+// HasAccess returns true if the current user has at least read access to any unit of this repository
+func (p *Permission) HasAccess() bool {
+	if p.UnitsMode == nil {
+		return p.AccessMode >= perm_model.AccessModeRead
+	}
+	return len(p.UnitsMode) > 0
+}
+
+// UnitAccessMode returns current user accessmode to the specify unit of the repository
+func (p *Permission) UnitAccessMode(unitType unit.Type) perm_model.AccessMode {
+	if p.UnitsMode == nil {
+		for _, u := range p.Units {
+			if u.Type == unitType {
+				return p.AccessMode
+			}
+		}
+		return perm_model.AccessModeNone
+	}
+	return p.UnitsMode[unitType]
+}
+
+// CanAccess returns true if user has mode access to the unit of the repository
+func (p *Permission) CanAccess(mode perm_model.AccessMode, unitType unit.Type) bool {
+	return p.UnitAccessMode(unitType) >= mode
+}
+
+// CanAccessAny returns true if user has mode access to any of the units of the repository
+func (p *Permission) CanAccessAny(mode perm_model.AccessMode, unitTypes ...unit.Type) bool {
+	for _, u := range unitTypes {
+		if p.CanAccess(mode, u) {
+			return true
+		}
+	}
+	return false
+}
+
+// CanRead returns true if user could read to this unit
+func (p *Permission) CanRead(unitType unit.Type) bool {
+	return p.CanAccess(perm_model.AccessModeRead, unitType)
+}
+
+// CanReadAny returns true if user has read access to any of the units of the repository
+func (p *Permission) CanReadAny(unitTypes ...unit.Type) bool {
+	return p.CanAccessAny(perm_model.AccessModeRead, unitTypes...)
+}
+
+// CanReadIssuesOrPulls returns true if isPull is true and user could read pull requests and
+// returns true if isPull is false and user could read to issues
+func (p *Permission) CanReadIssuesOrPulls(isPull bool) bool {
+	if isPull {
+		return p.CanRead(unit.TypePullRequests)
+	}
+	return p.CanRead(unit.TypeIssues)
+}
+
+// CanWrite returns true if user could write to this unit
+func (p *Permission) CanWrite(unitType unit.Type) bool {
+	return p.CanAccess(perm_model.AccessModeWrite, unitType)
+}
+
+// CanWriteIssuesOrPulls returns true if isPull is true and user could write to pull requests and
+// returns true if isPull is false and user could write to issues
+func (p *Permission) CanWriteIssuesOrPulls(isPull bool) bool {
+	if isPull {
+		return p.CanWrite(unit.TypePullRequests)
+	}
+	return p.CanWrite(unit.TypeIssues)
+}
+
+func (p *Permission) LogString() string {
+	format := "<Permission AccessMode=%s, %d Units, %d UnitsMode(s): [ "
+	args := []any{p.AccessMode.String(), len(p.Units), len(p.UnitsMode)}
+
+	for i, unit := range p.Units {
+		config := ""
+		if unit.Config != nil {
+			configBytes, err := unit.Config.ToDB()
+			config = string(configBytes)
+			if err != nil {
+				config = err.Error()
+			}
+		}
+		format += "\nUnits[%d]: ID: %d RepoID: %d Type: %s Config: %s"
+		args = append(args, i, unit.ID, unit.RepoID, unit.Type.LogString(), config)
+	}
+	for key, value := range p.UnitsMode {
+		format += "\nUnitMode[%-v]: %-v"
+		args = append(args, key.LogString(), value.LogString())
+	}
+	format += " ]>"
+	return fmt.Sprintf(format, args...)
+}
+
+// GetUserRepoPermission returns the user permissions to the repository
+func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, user *user_model.User) (Permission, error) {
+	var perm Permission
+	if log.IsTrace() {
+		defer func() {
+			if user == nil {
+				log.Trace("Permission Loaded for anonymous user in %-v:\nPermissions: %-+v",
+					repo,
+					perm)
+				return
+			}
+			log.Trace("Permission Loaded for %-v in %-v:\nPermissions: %-+v",
+				user,
+				repo,
+				perm)
+		}()
+	}
+
+	// anonymous user visit private repo.
+	// TODO: anonymous user visit public unit of private repo???
+	if user == nil && repo.IsPrivate {
+		perm.AccessMode = perm_model.AccessModeNone
+		return perm, nil
+	}
+
+	var isCollaborator bool
+	var err error
+	if user != nil {
+		isCollaborator, err = repo_model.IsCollaborator(ctx, repo.ID, user.ID)
+		if err != nil {
+			return perm, err
+		}
+	}
+
+	if err := repo.LoadOwner(ctx); err != nil {
+		return perm, err
+	}
+
+	// Prevent strangers from checking out public repo of private organization/users
+	// Allow user if they are collaborator of a repo within a private user or a private organization but not a member of the organization itself
+	if !organization.HasOrgOrUserVisible(ctx, repo.Owner, user) && !isCollaborator {
+		perm.AccessMode = perm_model.AccessModeNone
+		return perm, nil
+	}
+
+	if err := repo.LoadUnits(ctx); err != nil {
+		return perm, err
+	}
+
+	perm.Units = repo.Units
+
+	// anonymous visit public repo
+	if user == nil {
+		perm.AccessMode = perm_model.AccessModeRead
+		return perm, nil
+	}
+
+	// Admin or the owner has super access to the repository
+	if user.IsAdmin || user.ID == repo.OwnerID {
+		perm.AccessMode = perm_model.AccessModeOwner
+		return perm, nil
+	}
+
+	// plain user
+	perm.AccessMode, err = accessLevel(ctx, user, repo)
+	if err != nil {
+		return perm, err
+	}
+
+	if err := repo.LoadOwner(ctx); err != nil {
+		return perm, err
+	}
+
+	if !repo.Owner.IsOrganization() {
+		// for a public repo, different repo units may have different default
+		// permissions for non-restricted users.
+		if !repo.IsPrivate && !user.IsRestricted && len(repo.Units) > 0 {
+			perm.UnitsMode = make(map[unit.Type]perm_model.AccessMode)
+			for _, u := range repo.Units {
+				if _, ok := perm.UnitsMode[u.Type]; !ok {
+					perm.UnitsMode[u.Type] = u.DefaultPermissions.ToAccessMode(perm.AccessMode)
+				}
+			}
+		}
+
+		return perm, nil
+	}
+
+	perm.UnitsMode = make(map[unit.Type]perm_model.AccessMode)
+
+	// Collaborators on organization
+	if isCollaborator {
+		for _, u := range repo.Units {
+			perm.UnitsMode[u.Type] = perm.AccessMode
+		}
+	}
+
+	// get units mode from teams
+	teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
+	if err != nil {
+		return perm, err
+	}
+
+	// if user in an owner team
+	for _, team := range teams {
+		if team.AccessMode >= perm_model.AccessModeAdmin {
+			perm.AccessMode = perm_model.AccessModeOwner
+			perm.UnitsMode = nil
+			return perm, nil
+		}
+	}
+
+	for _, u := range repo.Units {
+		var found bool
+		for _, team := range teams {
+			teamMode := team.UnitAccessMode(ctx, u.Type)
+			if teamMode > perm_model.AccessModeNone {
+				m := perm.UnitsMode[u.Type]
+				if m < teamMode {
+					perm.UnitsMode[u.Type] = teamMode
+				}
+				found = true
+			}
+		}
+
+		// for a public repo on an organization, a non-restricted user should
+		// have the same permission on non-team defined units as the default
+		// permissions for the repo unit.
+		if !found && !repo.IsPrivate && !user.IsRestricted {
+			if _, ok := perm.UnitsMode[u.Type]; !ok {
+				perm.UnitsMode[u.Type] = u.DefaultPermissions.ToAccessMode(perm_model.AccessModeRead)
+			}
+		}
+	}
+
+	// remove no permission units
+	perm.Units = make([]*repo_model.RepoUnit, 0, len(repo.Units))
+	for t := range perm.UnitsMode {
+		for _, u := range repo.Units {
+			if u.Type == t {
+				perm.Units = append(perm.Units, u)
+			}
+		}
+	}
+
+	return perm, err
+}
+
+// IsUserRealRepoAdmin check if this user is real repo admin
+func IsUserRealRepoAdmin(ctx context.Context, repo *repo_model.Repository, user *user_model.User) (bool, error) {
+	if repo.OwnerID == user.ID {
+		return true, nil
+	}
+
+	if err := repo.LoadOwner(ctx); err != nil {
+		return false, err
+	}
+
+	accessMode, err := accessLevel(ctx, user, repo)
+	if err != nil {
+		return false, err
+	}
+
+	return accessMode >= perm_model.AccessModeAdmin, nil
+}
+
+// IsUserRepoAdmin return true if user has admin right of a repo
+func IsUserRepoAdmin(ctx context.Context, repo *repo_model.Repository, user *user_model.User) (bool, error) {
+	if user == nil || repo == nil {
+		return false, nil
+	}
+	if user.IsAdmin {
+		return true, nil
+	}
+
+	mode, err := accessLevel(ctx, user, repo)
+	if err != nil {
+		return false, err
+	}
+	if mode >= perm_model.AccessModeAdmin {
+		return true, nil
+	}
+
+	teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
+	if err != nil {
+		return false, err
+	}
+
+	for _, team := range teams {
+		if team.AccessMode >= perm_model.AccessModeAdmin {
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+// AccessLevel returns the Access a user has to a repository. Will return NoneAccess if the
+// user does not have access.
+func AccessLevel(ctx context.Context, user *user_model.User, repo *repo_model.Repository) (perm_model.AccessMode, error) { //nolint
+	return AccessLevelUnit(ctx, user, repo, unit.TypeCode)
+}
+
+// AccessLevelUnit returns the Access a user has to a repository's. Will return NoneAccess if the
+// user does not have access.
+func AccessLevelUnit(ctx context.Context, user *user_model.User, repo *repo_model.Repository, unitType unit.Type) (perm_model.AccessMode, error) { //nolint
+	perm, err := GetUserRepoPermission(ctx, repo, user)
+	if err != nil {
+		return perm_model.AccessModeNone, err
+	}
+	return perm.UnitAccessMode(unitType), nil
+}
+
+// HasAccessUnit returns true if user has testMode to the unit of the repository
+func HasAccessUnit(ctx context.Context, user *user_model.User, repo *repo_model.Repository, unitType unit.Type, testMode perm_model.AccessMode) (bool, error) {
+	mode, err := AccessLevelUnit(ctx, user, repo, unitType)
+	return testMode <= mode, err
+}
+
+// CanBeAssigned return true if user can be assigned to issue or pull requests in repo
+// Currently any write access (code, issues or pr's) is assignable, to match assignee list in user interface.
+func CanBeAssigned(ctx context.Context, user *user_model.User, repo *repo_model.Repository, _ bool) (bool, error) {
+	if user.IsOrganization() {
+		return false, fmt.Errorf("Organization can't be added as assignee [user_id: %d, repo_id: %d]", user.ID, repo.ID)
+	}
+	perm, err := GetUserRepoPermission(ctx, repo, user)
+	if err != nil {
+		return false, err
+	}
+	return perm.CanAccessAny(perm_model.AccessModeWrite, unit.AllRepoUnitTypes...) ||
+		perm.CanAccessAny(perm_model.AccessModeRead, unit.TypePullRequests), nil
+}
+
+// HasAccess returns true if user has access to repo
+func HasAccess(ctx context.Context, userID int64, repo *repo_model.Repository) (bool, error) {
+	var user *user_model.User
+	var err error
+	if userID > 0 {
+		user, err = user_model.GetUserByID(ctx, userID)
+		if err != nil {
+			return false, err
+		}
+	}
+	perm, err := GetUserRepoPermission(ctx, repo, user)
+	if err != nil {
+		return false, err
+	}
+	return perm.HasAccess(), nil
+}
+
+// getUsersWithAccessMode returns users that have at least given access mode to the repository.
+func getUsersWithAccessMode(ctx context.Context, repo *repo_model.Repository, mode perm_model.AccessMode) (_ []*user_model.User, err error) {
+	if err = repo.LoadOwner(ctx); err != nil {
+		return nil, err
+	}
+
+	e := db.GetEngine(ctx)
+	accesses := make([]*Access, 0, 10)
+	if err = e.Where("repo_id = ? AND mode >= ?", repo.ID, mode).Find(&accesses); err != nil {
+		return nil, err
+	}
+
+	// Leave a seat for owner itself to append later, but if owner is an organization
+	// and just waste 1 unit is cheaper than re-allocate memory once.
+	users := make([]*user_model.User, 0, len(accesses)+1)
+	if len(accesses) > 0 {
+		userIDs := make([]int64, len(accesses))
+		for i := 0; i < len(accesses); i++ {
+			userIDs[i] = accesses[i].UserID
+		}
+
+		if err = e.In("id", userIDs).Find(&users); err != nil {
+			return nil, err
+		}
+	}
+	if !repo.Owner.IsOrganization() {
+		users = append(users, repo.Owner)
+	}
+
+	return users, nil
+}
+
+// GetRepoReaders returns all users that have explicit read access or higher to the repository.
+func GetRepoReaders(ctx context.Context, repo *repo_model.Repository) (_ []*user_model.User, err error) {
+	return getUsersWithAccessMode(ctx, repo, perm_model.AccessModeRead)
+}
+
+// GetRepoWriters returns all users that have write access to the repository.
+func GetRepoWriters(ctx context.Context, repo *repo_model.Repository) (_ []*user_model.User, err error) {
+	return getUsersWithAccessMode(ctx, repo, perm_model.AccessModeWrite)
+}
+
+// IsRepoReader returns true if user has explicit read access or higher to the repository.
+func IsRepoReader(ctx context.Context, repo *repo_model.Repository, userID int64) (bool, error) {
+	if repo.OwnerID == userID {
+		return true, nil
+	}
+	return db.GetEngine(ctx).Where("repo_id = ? AND user_id = ? AND mode >= ?", repo.ID, userID, perm_model.AccessModeRead).Get(&Access{})
+}
+
+// CheckRepoUnitUser check whether user could visit the unit of this repository
+func CheckRepoUnitUser(ctx context.Context, repo *repo_model.Repository, user *user_model.User, unitType unit.Type) bool {
+	if user != nil && user.IsAdmin {
+		return true
+	}
+	perm, err := GetUserRepoPermission(ctx, repo, user)
+	if err != nil {
+		log.Error("GetUserRepoPermission: %w", err)
+		return false
+	}
+
+	return perm.CanRead(unitType)
+}
diff --git a/models/perm/access_mode.go b/models/perm/access_mode.go
new file mode 100644
index 0000000..a37bc1f
--- /dev/null
+++ b/models/perm/access_mode.go
@@ -0,0 +1,57 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package perm
+
+import (
+	"fmt"
+)
+
+// AccessMode specifies the users access mode
+type AccessMode int
+
+const (
+	// AccessModeNone no access
+	AccessModeNone AccessMode = iota // 0
+	// AccessModeRead read access
+	AccessModeRead // 1
+	// AccessModeWrite write access
+	AccessModeWrite // 2
+	// AccessModeAdmin admin access
+	AccessModeAdmin // 3
+	// AccessModeOwner owner access
+	AccessModeOwner // 4
+)
+
+func (mode AccessMode) String() string {
+	switch mode {
+	case AccessModeRead:
+		return "read"
+	case AccessModeWrite:
+		return "write"
+	case AccessModeAdmin:
+		return "admin"
+	case AccessModeOwner:
+		return "owner"
+	default:
+		return "none"
+	}
+}
+
+func (mode AccessMode) LogString() string {
+	return fmt.Sprintf("<AccessMode:%d:%s>", mode, mode.String())
+}
+
+// ParseAccessMode returns corresponding access mode to given permission string.
+func ParseAccessMode(permission string) AccessMode {
+	switch permission {
+	case "read":
+		return AccessModeRead
+	case "write":
+		return AccessModeWrite
+	case "admin":
+		return AccessModeAdmin
+	default:
+		return AccessModeNone
+	}
+}
diff --git a/models/project/column.go b/models/project/column.go
new file mode 100644
index 0000000..222f448
--- /dev/null
+++ b/models/project/column.go
@@ -0,0 +1,359 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"regexp"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+type (
+
+	// CardType is used to represent a project column card type
+	CardType uint8
+
+	// ColumnList is a list of all project columns in a repository
+	ColumnList []*Column
+)
+
+const (
+	// CardTypeTextOnly is a project column card type that is text only
+	CardTypeTextOnly CardType = iota
+
+	// CardTypeImagesAndText is a project column card type that has images and text
+	CardTypeImagesAndText
+)
+
+// ColumnColorPattern is a regexp witch can validate ColumnColor
+var ColumnColorPattern = regexp.MustCompile("^#[0-9a-fA-F]{6}$")
+
+// Column is used to represent column on a project
+type Column struct {
+	ID      int64 `xorm:"pk autoincr"`
+	Title   string
+	Default bool   `xorm:"NOT NULL DEFAULT false"` // issues not assigned to a specific column will be assigned to this column
+	Sorting int8   `xorm:"NOT NULL DEFAULT 0"`
+	Color   string `xorm:"VARCHAR(7)"`
+
+	ProjectID int64 `xorm:"INDEX NOT NULL"`
+	CreatorID int64 `xorm:"NOT NULL"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+// TableName return the real table name
+func (Column) TableName() string {
+	return "project_board" // TODO: the legacy table name should be project_column
+}
+
+// NumIssues return counter of all issues assigned to the column
+func (c *Column) NumIssues(ctx context.Context) int {
+	total, err := db.GetEngine(ctx).Table("project_issue").
+		Where("project_id=?", c.ProjectID).
+		And("project_board_id=?", c.ID).
+		GroupBy("issue_id").
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		return 0
+	}
+	return int(total)
+}
+
+func (c *Column) GetIssues(ctx context.Context) ([]*ProjectIssue, error) {
+	issues := make([]*ProjectIssue, 0, 5)
+	if err := db.GetEngine(ctx).Where("project_id=?", c.ProjectID).
+		And("project_board_id=?", c.ID).
+		OrderBy("sorting, id").
+		Find(&issues); err != nil {
+		return nil, err
+	}
+	return issues, nil
+}
+
+func init() {
+	db.RegisterModel(new(Column))
+}
+
+// IsCardTypeValid checks if the project column card type is valid
+func IsCardTypeValid(p CardType) bool {
+	switch p {
+	case CardTypeTextOnly, CardTypeImagesAndText:
+		return true
+	default:
+		return false
+	}
+}
+
+func createDefaultColumnsForProject(ctx context.Context, project *Project) error {
+	var items []string
+
+	switch project.TemplateType {
+	case TemplateTypeBugTriage:
+		items = setting.Project.ProjectBoardBugTriageType
+	case TemplateTypeBasicKanban:
+		items = setting.Project.ProjectBoardBasicKanbanType
+	case TemplateTypeNone:
+		fallthrough
+	default:
+		return nil
+	}
+
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		column := Column{
+			CreatedUnix: timeutil.TimeStampNow(),
+			CreatorID:   project.CreatorID,
+			Title:       "Backlog",
+			ProjectID:   project.ID,
+			Default:     true,
+		}
+		if err := db.Insert(ctx, column); err != nil {
+			return err
+		}
+
+		if len(items) == 0 {
+			return nil
+		}
+
+		columns := make([]Column, 0, len(items))
+		for _, v := range items {
+			columns = append(columns, Column{
+				CreatedUnix: timeutil.TimeStampNow(),
+				CreatorID:   project.CreatorID,
+				Title:       v,
+				ProjectID:   project.ID,
+			})
+		}
+
+		return db.Insert(ctx, columns)
+	})
+}
+
+// maxProjectColumns max columns allowed in a project, this should not bigger than 127
+// because sorting is int8 in database
+const maxProjectColumns = 20
+
+// NewColumn adds a new project column to a given project
+func NewColumn(ctx context.Context, column *Column) error {
+	if len(column.Color) != 0 && !ColumnColorPattern.MatchString(column.Color) {
+		return fmt.Errorf("bad color code: %s", column.Color)
+	}
+
+	res := struct {
+		MaxSorting  int64
+		ColumnCount int64
+	}{}
+	if _, err := db.GetEngine(ctx).Select("max(sorting) as max_sorting, count(*) as column_count").Table("project_board").
+		Where("project_id=?", column.ProjectID).Get(&res); err != nil {
+		return err
+	}
+	if res.ColumnCount >= maxProjectColumns {
+		return fmt.Errorf("NewBoard: maximum number of columns reached")
+	}
+	column.Sorting = int8(util.Iif(res.ColumnCount > 0, res.MaxSorting+1, 0))
+	_, err := db.GetEngine(ctx).Insert(column)
+	return err
+}
+
+// DeleteColumnByID removes all issues references to the project column.
+func DeleteColumnByID(ctx context.Context, columnID int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		return deleteColumnByID(ctx, columnID)
+	})
+}
+
+func deleteColumnByID(ctx context.Context, columnID int64) error {
+	column, err := GetColumn(ctx, columnID)
+	if err != nil {
+		if IsErrProjectColumnNotExist(err) {
+			return nil
+		}
+
+		return err
+	}
+
+	if column.Default {
+		return fmt.Errorf("deleteColumnByID: cannot delete default column")
+	}
+
+	// move all issues to the default column
+	project, err := GetProjectByID(ctx, column.ProjectID)
+	if err != nil {
+		return err
+	}
+	defaultColumn, err := project.GetDefaultColumn(ctx)
+	if err != nil {
+		return err
+	}
+
+	if err = column.moveIssuesToAnotherColumn(ctx, defaultColumn); err != nil {
+		return err
+	}
+
+	if _, err := db.GetEngine(ctx).ID(column.ID).NoAutoCondition().Delete(column); err != nil {
+		return err
+	}
+	return nil
+}
+
+func deleteColumnByProjectID(ctx context.Context, projectID int64) error {
+	_, err := db.GetEngine(ctx).Where("project_id=?", projectID).Delete(&Column{})
+	return err
+}
+
+// GetColumn fetches the current column of a project
+func GetColumn(ctx context.Context, columnID int64) (*Column, error) {
+	column := new(Column)
+	has, err := db.GetEngine(ctx).ID(columnID).Get(column)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrProjectColumnNotExist{ColumnID: columnID}
+	}
+
+	return column, nil
+}
+
+// UpdateColumn updates a project column
+func UpdateColumn(ctx context.Context, column *Column) error {
+	var fieldToUpdate []string
+
+	if column.Sorting != 0 {
+		fieldToUpdate = append(fieldToUpdate, "sorting")
+	}
+
+	if column.Title != "" {
+		fieldToUpdate = append(fieldToUpdate, "title")
+	}
+
+	if len(column.Color) != 0 && !ColumnColorPattern.MatchString(column.Color) {
+		return fmt.Errorf("bad color code: %s", column.Color)
+	}
+	fieldToUpdate = append(fieldToUpdate, "color")
+
+	_, err := db.GetEngine(ctx).ID(column.ID).Cols(fieldToUpdate...).Update(column)
+
+	return err
+}
+
+// GetColumns fetches all columns related to a project
+func (p *Project) GetColumns(ctx context.Context) (ColumnList, error) {
+	columns := make([]*Column, 0, 5)
+	if err := db.GetEngine(ctx).Where("project_id=?", p.ID).OrderBy("sorting, id").Find(&columns); err != nil {
+		return nil, err
+	}
+
+	return columns, nil
+}
+
+// GetDefaultColumn return default column and ensure only one exists
+func (p *Project) GetDefaultColumn(ctx context.Context) (*Column, error) {
+	var column Column
+	has, err := db.GetEngine(ctx).
+		Where("project_id=? AND `default` = ?", p.ID, true).
+		Desc("id").Get(&column)
+	if err != nil {
+		return nil, err
+	}
+
+	if has {
+		return &column, nil
+	}
+
+	// create a default column if none is found
+	column = Column{
+		ProjectID: p.ID,
+		Default:   true,
+		Title:     "Uncategorized",
+		CreatorID: p.CreatorID,
+	}
+	if _, err := db.GetEngine(ctx).Insert(&column); err != nil {
+		return nil, err
+	}
+	return &column, nil
+}
+
+// SetDefaultColumn represents a column for issues not assigned to one
+func SetDefaultColumn(ctx context.Context, projectID, columnID int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		if _, err := GetColumn(ctx, columnID); err != nil {
+			return err
+		}
+
+		if _, err := db.GetEngine(ctx).Where(builder.Eq{
+			"project_id": projectID,
+			"`default`":  true,
+		}).Cols("`default`").Update(&Column{Default: false}); err != nil {
+			return err
+		}
+
+		_, err := db.GetEngine(ctx).ID(columnID).
+			Where(builder.Eq{"project_id": projectID}).
+			Cols("`default`").Update(&Column{Default: true})
+		return err
+	})
+}
+
+// UpdateColumnSorting update project column sorting
+func UpdateColumnSorting(ctx context.Context, cl ColumnList) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		for i := range cl {
+			if _, err := db.GetEngine(ctx).ID(cl[i].ID).Cols(
+				"sorting",
+			).Update(cl[i]); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func GetColumnsByIDs(ctx context.Context, projectID int64, columnsIDs []int64) (ColumnList, error) {
+	columns := make([]*Column, 0, 5)
+	if err := db.GetEngine(ctx).
+		Where("project_id =?", projectID).
+		In("id", columnsIDs).
+		OrderBy("sorting").Find(&columns); err != nil {
+		return nil, err
+	}
+	return columns, nil
+}
+
+// MoveColumnsOnProject sorts columns in a project
+func MoveColumnsOnProject(ctx context.Context, project *Project, sortedColumnIDs map[int64]int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		sess := db.GetEngine(ctx)
+		columnIDs := util.ValuesOfMap(sortedColumnIDs)
+		movedColumns, err := GetColumnsByIDs(ctx, project.ID, columnIDs)
+		if err != nil {
+			return err
+		}
+		if len(movedColumns) != len(sortedColumnIDs) {
+			return errors.New("some columns do not exist")
+		}
+
+		for _, column := range movedColumns {
+			if column.ProjectID != project.ID {
+				return fmt.Errorf("column[%d]'s projectID is not equal to project's ID [%d]", column.ProjectID, project.ID)
+			}
+		}
+
+		for sorting, columnID := range sortedColumnIDs {
+			if _, err := sess.Exec("UPDATE `project_board` SET sorting=? WHERE id=?", sorting, columnID); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
diff --git a/models/project/column_test.go b/models/project/column_test.go
new file mode 100644
index 0000000..b02a5b5
--- /dev/null
+++ b/models/project/column_test.go
@@ -0,0 +1,128 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetDefaultColumn(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	projectWithoutDefault, err := GetProjectByID(db.DefaultContext, 5)
+	require.NoError(t, err)
+
+	// check if default column was added
+	column, err := projectWithoutDefault.GetDefaultColumn(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, int64(5), column.ProjectID)
+	assert.Equal(t, "Uncategorized", column.Title)
+
+	projectWithMultipleDefaults, err := GetProjectByID(db.DefaultContext, 6)
+	require.NoError(t, err)
+
+	// check if multiple defaults were removed
+	column, err = projectWithMultipleDefaults.GetDefaultColumn(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Equal(t, int64(6), column.ProjectID)
+	assert.Equal(t, int64(9), column.ID)
+
+	// set 8 as default column
+	require.NoError(t, SetDefaultColumn(db.DefaultContext, column.ProjectID, 8))
+
+	// then 9 will become a non-default column
+	column, err = GetColumn(db.DefaultContext, 9)
+	require.NoError(t, err)
+	assert.Equal(t, int64(6), column.ProjectID)
+	assert.False(t, column.Default)
+}
+
+func Test_moveIssuesToAnotherColumn(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	column1 := unittest.AssertExistsAndLoadBean(t, &Column{ID: 1, ProjectID: 1})
+
+	issues, err := column1.GetIssues(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, issues, 1)
+	assert.EqualValues(t, 1, issues[0].ID)
+
+	column2 := unittest.AssertExistsAndLoadBean(t, &Column{ID: 2, ProjectID: 1})
+	issues, err = column2.GetIssues(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, issues, 1)
+	assert.EqualValues(t, 3, issues[0].ID)
+
+	err = column1.moveIssuesToAnotherColumn(db.DefaultContext, column2)
+	require.NoError(t, err)
+
+	issues, err = column1.GetIssues(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Empty(t, issues)
+
+	issues, err = column2.GetIssues(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, issues, 2)
+	assert.EqualValues(t, 3, issues[0].ID)
+	assert.EqualValues(t, 0, issues[0].Sorting)
+	assert.EqualValues(t, 1, issues[1].ID)
+	assert.EqualValues(t, 1, issues[1].Sorting)
+}
+
+func Test_MoveColumnsOnProject(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	project1 := unittest.AssertExistsAndLoadBean(t, &Project{ID: 1})
+	columns, err := project1.GetColumns(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, columns, 3)
+	assert.EqualValues(t, 0, columns[0].Sorting) // even if there is no default sorting, the code should also work
+	assert.EqualValues(t, 0, columns[1].Sorting)
+	assert.EqualValues(t, 0, columns[2].Sorting)
+
+	err = MoveColumnsOnProject(db.DefaultContext, project1, map[int64]int64{
+		0: columns[1].ID,
+		1: columns[2].ID,
+		2: columns[0].ID,
+	})
+	require.NoError(t, err)
+
+	columnsAfter, err := project1.GetColumns(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, columnsAfter, 3)
+	assert.EqualValues(t, columns[1].ID, columnsAfter[0].ID)
+	assert.EqualValues(t, columns[2].ID, columnsAfter[1].ID)
+	assert.EqualValues(t, columns[0].ID, columnsAfter[2].ID)
+}
+
+func Test_NewColumn(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	project1 := unittest.AssertExistsAndLoadBean(t, &Project{ID: 1})
+	columns, err := project1.GetColumns(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, columns, 3)
+
+	for i := 0; i < maxProjectColumns-3; i++ {
+		err := NewColumn(db.DefaultContext, &Column{
+			Title:     fmt.Sprintf("column-%d", i+4),
+			ProjectID: project1.ID,
+		})
+		require.NoError(t, err)
+	}
+	err = NewColumn(db.DefaultContext, &Column{
+		Title:     "column-21",
+		ProjectID: project1.ID,
+	})
+	require.Error(t, err)
+	assert.True(t, strings.Contains(err.Error(), "maximum number of columns reached"))
+}
diff --git a/models/project/issue.go b/models/project/issue.go
new file mode 100644
index 0000000..3361b53
--- /dev/null
+++ b/models/project/issue.go
@@ -0,0 +1,143 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ProjectIssue saves relation from issue to a project
+type ProjectIssue struct { //revive:disable-line:exported
+	ID        int64 `xorm:"pk autoincr"`
+	IssueID   int64 `xorm:"INDEX"`
+	ProjectID int64 `xorm:"INDEX"`
+
+	// ProjectColumnID should not be zero since 1.22. If it's zero, the issue will not be displayed on UI and it might result in errors.
+	ProjectColumnID int64 `xorm:"'project_board_id' INDEX"`
+
+	// the sorting order on the column
+	Sorting int64 `xorm:"NOT NULL DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(ProjectIssue))
+}
+
+func deleteProjectIssuesByProjectID(ctx context.Context, projectID int64) error {
+	_, err := db.GetEngine(ctx).Where("project_id=?", projectID).Delete(&ProjectIssue{})
+	return err
+}
+
+// NumIssues return counter of all issues assigned to a project
+func (p *Project) NumIssues(ctx context.Context) int {
+	c, err := db.GetEngine(ctx).Table("project_issue").
+		Where("project_id=?", p.ID).
+		GroupBy("issue_id").
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		log.Error("NumIssues: %v", err)
+		return 0
+	}
+	return int(c)
+}
+
+// NumClosedIssues return counter of closed issues assigned to a project
+func (p *Project) NumClosedIssues(ctx context.Context) int {
+	c, err := db.GetEngine(ctx).Table("project_issue").
+		Join("INNER", "issue", "project_issue.issue_id=issue.id").
+		Where("project_issue.project_id=? AND issue.is_closed=?", p.ID, true).
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		log.Error("NumClosedIssues: %v", err)
+		return 0
+	}
+	return int(c)
+}
+
+// NumOpenIssues return counter of open issues assigned to a project
+func (p *Project) NumOpenIssues(ctx context.Context) int {
+	c, err := db.GetEngine(ctx).Table("project_issue").
+		Join("INNER", "issue", "project_issue.issue_id=issue.id").
+		Where("project_issue.project_id=? AND issue.is_closed=?", p.ID, false).
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		log.Error("NumOpenIssues: %v", err)
+		return 0
+	}
+	return int(c)
+}
+
+// MoveIssuesOnProjectColumn moves or keeps issues in a column and sorts them inside that column
+func MoveIssuesOnProjectColumn(ctx context.Context, column *Column, sortedIssueIDs map[int64]int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		sess := db.GetEngine(ctx)
+		issueIDs := util.ValuesOfMap(sortedIssueIDs)
+
+		count, err := sess.Table(new(ProjectIssue)).Where("project_id=?", column.ProjectID).In("issue_id", issueIDs).Count()
+		if err != nil {
+			return err
+		}
+		if int(count) != len(sortedIssueIDs) {
+			return fmt.Errorf("all issues have to be added to a project first")
+		}
+
+		for sorting, issueID := range sortedIssueIDs {
+			_, err = sess.Exec("UPDATE `project_issue` SET project_board_id=?, sorting=? WHERE issue_id=?", column.ID, sorting, issueID)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (c *Column) moveIssuesToAnotherColumn(ctx context.Context, newColumn *Column) error {
+	if c.ProjectID != newColumn.ProjectID {
+		return fmt.Errorf("columns have to be in the same project")
+	}
+
+	if c.ID == newColumn.ID {
+		return nil
+	}
+
+	res := struct {
+		MaxSorting int64
+		IssueCount int64
+	}{}
+	if _, err := db.GetEngine(ctx).Select("max(sorting) as max_sorting, count(*) as issue_count").
+		Table("project_issue").
+		Where("project_id=?", newColumn.ProjectID).
+		And("project_board_id=?", newColumn.ID).
+		Get(&res); err != nil {
+		return err
+	}
+
+	issues, err := c.GetIssues(ctx)
+	if err != nil {
+		return err
+	}
+	if len(issues) == 0 {
+		return nil
+	}
+
+	nextSorting := util.Iif(res.IssueCount > 0, res.MaxSorting+1, 0)
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		for i, issue := range issues {
+			issue.ProjectColumnID = newColumn.ID
+			issue.Sorting = nextSorting + int64(i)
+			if _, err := db.GetEngine(ctx).ID(issue.ID).Cols("project_board_id", "sorting").Update(issue); err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
diff --git a/models/project/main_test.go b/models/project/main_test.go
new file mode 100644
index 0000000..f4b2d6f
--- /dev/null
+++ b/models/project/main_test.go
@@ -0,0 +1,23 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models/repo"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{
+			"project.yml",
+			"project_board.yml",
+			"project_issue.yml",
+			"repository.yml",
+		},
+	})
+}
diff --git a/models/project/project.go b/models/project/project.go
new file mode 100644
index 0000000..8cebf34
--- /dev/null
+++ b/models/project/project.go
@@ -0,0 +1,451 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+type (
+	// CardConfig is used to identify the type of column card that is being used
+	CardConfig struct {
+		CardType    CardType
+		Translation string
+	}
+
+	// Type is used to identify the type of project in question and ownership
+	Type uint8
+)
+
+const (
+	// TypeIndividual is a type of project column that is owned by an individual
+	TypeIndividual Type = iota + 1
+
+	// TypeRepository is a project that is tied to a repository
+	TypeRepository
+
+	// TypeOrganization is a project that is tied to an organisation
+	TypeOrganization
+)
+
+// ErrProjectNotExist represents a "ProjectNotExist" kind of error.
+type ErrProjectNotExist struct {
+	ID     int64
+	RepoID int64
+}
+
+// IsErrProjectNotExist checks if an error is a ErrProjectNotExist
+func IsErrProjectNotExist(err error) bool {
+	_, ok := err.(ErrProjectNotExist)
+	return ok
+}
+
+func (err ErrProjectNotExist) Error() string {
+	return fmt.Sprintf("projects does not exist [id: %d]", err.ID)
+}
+
+func (err ErrProjectNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrProjectColumnNotExist represents a "ErrProjectColumnNotExist" kind of error.
+type ErrProjectColumnNotExist struct {
+	ColumnID int64
+}
+
+// IsErrProjectColumnNotExist checks if an error is a ErrProjectColumnNotExist
+func IsErrProjectColumnNotExist(err error) bool {
+	_, ok := err.(ErrProjectColumnNotExist)
+	return ok
+}
+
+func (err ErrProjectColumnNotExist) Error() string {
+	return fmt.Sprintf("project column does not exist [id: %d]", err.ColumnID)
+}
+
+func (err ErrProjectColumnNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Project represents a project
+type Project struct {
+	ID           int64                  `xorm:"pk autoincr"`
+	Title        string                 `xorm:"INDEX NOT NULL"`
+	Description  string                 `xorm:"TEXT"`
+	OwnerID      int64                  `xorm:"INDEX"`
+	Owner        *user_model.User       `xorm:"-"`
+	RepoID       int64                  `xorm:"INDEX"`
+	Repo         *repo_model.Repository `xorm:"-"`
+	CreatorID    int64                  `xorm:"NOT NULL"`
+	IsClosed     bool                   `xorm:"INDEX"`
+	TemplateType TemplateType           `xorm:"'board_type'"` // TODO: rename the column to template_type
+	CardType     CardType
+	Type         Type
+
+	RenderedContent template.HTML `xorm:"-"`
+
+	CreatedUnix    timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX updated"`
+	ClosedDateUnix timeutil.TimeStamp
+}
+
+// Ghost Project is a project which has been deleted
+const GhostProjectID = -1
+
+func (p *Project) IsGhost() bool {
+	return p.ID == GhostProjectID
+}
+
+func (p *Project) LoadOwner(ctx context.Context) (err error) {
+	if p.Owner != nil {
+		return nil
+	}
+	p.Owner, err = user_model.GetUserByID(ctx, p.OwnerID)
+	return err
+}
+
+func (p *Project) LoadRepo(ctx context.Context) (err error) {
+	if p.RepoID == 0 || p.Repo != nil {
+		return nil
+	}
+	p.Repo, err = repo_model.GetRepositoryByID(ctx, p.RepoID)
+	return err
+}
+
+// Link returns the project's relative URL.
+func (p *Project) Link(ctx context.Context) string {
+	if p.OwnerID > 0 {
+		err := p.LoadOwner(ctx)
+		if err != nil {
+			log.Error("LoadOwner: %v", err)
+			return ""
+		}
+		return fmt.Sprintf("%s/-/projects/%d", p.Owner.HomeLink(), p.ID)
+	}
+	if p.RepoID > 0 {
+		err := p.LoadRepo(ctx)
+		if err != nil {
+			log.Error("LoadRepo: %v", err)
+			return ""
+		}
+		return fmt.Sprintf("%s/projects/%d", p.Repo.Link(), p.ID)
+	}
+	return ""
+}
+
+func (p *Project) IconName() string {
+	if p.IsRepositoryProject() {
+		return "octicon-project"
+	}
+	return "octicon-project-symlink"
+}
+
+func (p *Project) IsOrganizationProject() bool {
+	return p.Type == TypeOrganization
+}
+
+func (p *Project) IsRepositoryProject() bool {
+	return p.Type == TypeRepository
+}
+
+func (p *Project) CanBeAccessedByOwnerRepo(ownerID int64, repo *repo_model.Repository) bool {
+	if p.Type == TypeRepository {
+		return repo != nil && p.RepoID == repo.ID // if a project belongs to a repository, then its OwnerID is 0 and can be ignored
+	}
+	return p.OwnerID == ownerID && p.RepoID == 0
+}
+
+func init() {
+	db.RegisterModel(new(Project))
+}
+
+// GetCardConfig retrieves the types of configurations project column cards could have
+func GetCardConfig() []CardConfig {
+	return []CardConfig{
+		{CardTypeTextOnly, "repo.projects.card_type.text_only"},
+		{CardTypeImagesAndText, "repo.projects.card_type.images_and_text"},
+	}
+}
+
+// IsTypeValid checks if a project type is valid
+func IsTypeValid(p Type) bool {
+	switch p {
+	case TypeIndividual, TypeRepository, TypeOrganization:
+		return true
+	default:
+		return false
+	}
+}
+
+// SearchOptions are options for GetProjects
+type SearchOptions struct {
+	db.ListOptions
+	OwnerID  int64
+	RepoID   int64
+	IsClosed optional.Option[bool]
+	OrderBy  db.SearchOrderBy
+	Type     Type
+	Title    string
+}
+
+func (opts SearchOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.IsClosed.Has() {
+		cond = cond.And(builder.Eq{"is_closed": opts.IsClosed.Value()})
+	}
+
+	if opts.Type > 0 {
+		cond = cond.And(builder.Eq{"type": opts.Type})
+	}
+	if opts.OwnerID > 0 {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+
+	if len(opts.Title) != 0 {
+		cond = cond.And(db.BuildCaseInsensitiveLike("title", opts.Title))
+	}
+	return cond
+}
+
+func (opts SearchOptions) ToOrders() string {
+	return opts.OrderBy.String()
+}
+
+func GetSearchOrderByBySortType(sortType string) db.SearchOrderBy {
+	switch sortType {
+	case "oldest":
+		return db.SearchOrderByOldest
+	case "recentupdate":
+		return db.SearchOrderByRecentUpdated
+	case "leastupdate":
+		return db.SearchOrderByLeastUpdated
+	default:
+		return db.SearchOrderByNewest
+	}
+}
+
+// NewProject creates a new Project
+func NewProject(ctx context.Context, p *Project) error {
+	if !IsTemplateTypeValid(p.TemplateType) {
+		p.TemplateType = TemplateTypeNone
+	}
+
+	if !IsCardTypeValid(p.CardType) {
+		p.CardType = CardTypeTextOnly
+	}
+
+	if !IsTypeValid(p.Type) {
+		return util.NewInvalidArgumentErrorf("project type is not valid")
+	}
+
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		if err := db.Insert(ctx, p); err != nil {
+			return err
+		}
+
+		if p.RepoID > 0 {
+			if _, err := db.Exec(ctx, "UPDATE `repository` SET num_projects = num_projects + 1 WHERE id = ?", p.RepoID); err != nil {
+				return err
+			}
+		}
+
+		return createDefaultColumnsForProject(ctx, p)
+	})
+}
+
+// GetProjectByID returns the projects in a repository
+func GetProjectByID(ctx context.Context, id int64) (*Project, error) {
+	p := new(Project)
+
+	has, err := db.GetEngine(ctx).ID(id).Get(p)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrProjectNotExist{ID: id}
+	}
+
+	return p, nil
+}
+
+// GetProjectForRepoByID returns the projects in a repository
+func GetProjectForRepoByID(ctx context.Context, repoID, id int64) (*Project, error) {
+	p := new(Project)
+	has, err := db.GetEngine(ctx).Where("id=? AND repo_id=?", id, repoID).Get(p)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrProjectNotExist{ID: id}
+	}
+	return p, nil
+}
+
+// UpdateProject updates project properties
+func UpdateProject(ctx context.Context, p *Project) error {
+	if !IsCardTypeValid(p.CardType) {
+		p.CardType = CardTypeTextOnly
+	}
+
+	_, err := db.GetEngine(ctx).ID(p.ID).Cols(
+		"title",
+		"description",
+		"card_type",
+	).Update(p)
+	return err
+}
+
+func updateRepositoryProjectCount(ctx context.Context, repoID int64) error {
+	if _, err := db.GetEngine(ctx).Exec(builder.Update(
+		builder.Eq{
+			"`num_projects`": builder.Select("count(*)").From("`project`").
+				Where(builder.Eq{"`project`.`repo_id`": repoID}.
+					And(builder.Eq{"`project`.`type`": TypeRepository})),
+		}).From("`repository`").Where(builder.Eq{"id": repoID})); err != nil {
+		return err
+	}
+
+	if _, err := db.GetEngine(ctx).Exec(builder.Update(
+		builder.Eq{
+			"`num_closed_projects`": builder.Select("count(*)").From("`project`").
+				Where(builder.Eq{"`project`.`repo_id`": repoID}.
+					And(builder.Eq{"`project`.`type`": TypeRepository}).
+					And(builder.Eq{"`project`.`is_closed`": true})),
+		}).From("`repository`").Where(builder.Eq{"id": repoID})); err != nil {
+		return err
+	}
+	return nil
+}
+
+// ChangeProjectStatusByRepoIDAndID toggles a project between opened and closed
+func ChangeProjectStatusByRepoIDAndID(ctx context.Context, repoID, projectID int64, isClosed bool) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	p := new(Project)
+
+	has, err := db.GetEngine(ctx).ID(projectID).Where("repo_id = ?", repoID).Get(p)
+	if err != nil {
+		return err
+	} else if !has {
+		return ErrProjectNotExist{ID: projectID, RepoID: repoID}
+	}
+
+	if err := changeProjectStatus(ctx, p, isClosed); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// ChangeProjectStatus toggle a project between opened and closed
+func ChangeProjectStatus(ctx context.Context, p *Project, isClosed bool) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := changeProjectStatus(ctx, p, isClosed); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+func changeProjectStatus(ctx context.Context, p *Project, isClosed bool) error {
+	p.IsClosed = isClosed
+	p.ClosedDateUnix = timeutil.TimeStampNow()
+	count, err := db.GetEngine(ctx).ID(p.ID).Where("repo_id = ? AND is_closed = ?", p.RepoID, !isClosed).Cols("is_closed", "closed_date_unix").Update(p)
+	if err != nil {
+		return err
+	}
+	if count < 1 {
+		return nil
+	}
+
+	return updateRepositoryProjectCount(ctx, p.RepoID)
+}
+
+// DeleteProjectByID deletes a project from a repository. if it's not in a database
+// transaction, it will start a new database transaction
+func DeleteProjectByID(ctx context.Context, id int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		p, err := GetProjectByID(ctx, id)
+		if err != nil {
+			if IsErrProjectNotExist(err) {
+				return nil
+			}
+			return err
+		}
+
+		if err := deleteProjectIssuesByProjectID(ctx, id); err != nil {
+			return err
+		}
+
+		if err := deleteColumnByProjectID(ctx, id); err != nil {
+			return err
+		}
+
+		if _, err = db.GetEngine(ctx).ID(p.ID).Delete(new(Project)); err != nil {
+			return err
+		}
+
+		return updateRepositoryProjectCount(ctx, p.RepoID)
+	})
+}
+
+func DeleteProjectByRepoID(ctx context.Context, repoID int64) error {
+	switch {
+	case setting.Database.Type.IsSQLite3():
+		if _, err := db.GetEngine(ctx).Exec("DELETE FROM project_issue WHERE project_issue.id IN (SELECT project_issue.id FROM project_issue INNER JOIN project WHERE project.id = project_issue.project_id AND project.repo_id = ?)", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Exec("DELETE FROM project_board WHERE project_board.id IN (SELECT project_board.id FROM project_board INNER JOIN project WHERE project.id = project_board.project_id AND project.repo_id = ?)", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Table("project").Where("repo_id = ? ", repoID).Delete(&Project{}); err != nil {
+			return err
+		}
+	case setting.Database.Type.IsPostgreSQL():
+		if _, err := db.GetEngine(ctx).Exec("DELETE FROM project_issue USING project WHERE project.id = project_issue.project_id AND project.repo_id = ? ", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Exec("DELETE FROM project_board USING project WHERE project.id = project_board.project_id AND project.repo_id = ? ", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Table("project").Where("repo_id = ? ", repoID).Delete(&Project{}); err != nil {
+			return err
+		}
+	default:
+		if _, err := db.GetEngine(ctx).Exec("DELETE project_issue FROM project_issue INNER JOIN project ON project.id = project_issue.project_id WHERE project.repo_id = ? ", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Exec("DELETE project_board FROM project_board INNER JOIN project ON project.id = project_board.project_id WHERE project.repo_id = ? ", repoID); err != nil {
+			return err
+		}
+		if _, err := db.GetEngine(ctx).Table("project").Where("repo_id = ? ", repoID).Delete(&Project{}); err != nil {
+			return err
+		}
+	}
+
+	return updateRepositoryProjectCount(ctx, repoID)
+}
diff --git a/models/project/project_test.go b/models/project/project_test.go
new file mode 100644
index 0000000..8c660b9
--- /dev/null
+++ b/models/project/project_test.go
@@ -0,0 +1,124 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsProjectTypeValid(t *testing.T) {
+	const UnknownType Type = 15
+
+	cases := []struct {
+		typ   Type
+		valid bool
+	}{
+		{TypeIndividual, true},
+		{TypeRepository, true},
+		{TypeOrganization, true},
+		{UnknownType, false},
+	}
+
+	for _, v := range cases {
+		assert.Equal(t, v.valid, IsTypeValid(v.typ))
+	}
+}
+
+func TestGetProjects(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	projects, err := db.Find[Project](db.DefaultContext, SearchOptions{RepoID: 1})
+	require.NoError(t, err)
+
+	// 1 value for this repo exists in the fixtures
+	assert.Len(t, projects, 1)
+
+	projects, err = db.Find[Project](db.DefaultContext, SearchOptions{RepoID: 3})
+	require.NoError(t, err)
+
+	// 1 value for this repo exists in the fixtures
+	assert.Len(t, projects, 1)
+}
+
+func TestProject(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	project := &Project{
+		Type:         TypeRepository,
+		TemplateType: TemplateTypeBasicKanban,
+		CardType:     CardTypeTextOnly,
+		Title:        "New Project",
+		RepoID:       1,
+		CreatedUnix:  timeutil.TimeStampNow(),
+		CreatorID:    2,
+	}
+
+	require.NoError(t, NewProject(db.DefaultContext, project))
+
+	_, err := GetProjectByID(db.DefaultContext, project.ID)
+	require.NoError(t, err)
+
+	// Update project
+	project.Title = "Updated title"
+	require.NoError(t, UpdateProject(db.DefaultContext, project))
+
+	projectFromDB, err := GetProjectByID(db.DefaultContext, project.ID)
+	require.NoError(t, err)
+
+	assert.Equal(t, project.Title, projectFromDB.Title)
+
+	require.NoError(t, ChangeProjectStatus(db.DefaultContext, project, true))
+
+	// Retrieve from DB afresh to check if it is truly closed
+	projectFromDB, err = GetProjectByID(db.DefaultContext, project.ID)
+	require.NoError(t, err)
+
+	assert.True(t, projectFromDB.IsClosed)
+}
+
+func TestProjectsSort(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	tests := []struct {
+		sortType string
+		wants    []int64
+	}{
+		{
+			sortType: "default",
+			wants:    []int64{1, 3, 2, 6, 5, 4},
+		},
+		{
+			sortType: "oldest",
+			wants:    []int64{4, 5, 6, 2, 3, 1},
+		},
+		{
+			sortType: "recentupdate",
+			wants:    []int64{1, 3, 2, 6, 5, 4},
+		},
+		{
+			sortType: "leastupdate",
+			wants:    []int64{4, 5, 6, 2, 3, 1},
+		},
+	}
+
+	for _, tt := range tests {
+		projects, count, err := db.FindAndCount[Project](db.DefaultContext, SearchOptions{
+			OrderBy: GetSearchOrderByBySortType(tt.sortType),
+		})
+		require.NoError(t, err)
+		assert.EqualValues(t, int64(6), count)
+		if assert.Len(t, projects, 6) {
+			for i := range projects {
+				assert.EqualValues(t, tt.wants[i], projects[i].ID)
+			}
+		}
+	}
+}
diff --git a/models/project/template.go b/models/project/template.go
new file mode 100644
index 0000000..06d5d2a
--- /dev/null
+++ b/models/project/template.go
@@ -0,0 +1,45 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+type (
+	// TemplateType is used to represent a project template type
+	TemplateType uint8
+
+	// TemplateConfig is used to identify the template type of project that is being created
+	TemplateConfig struct {
+		TemplateType TemplateType
+		Translation  string
+	}
+)
+
+const (
+	// TemplateTypeNone is a project template type that has no predefined columns
+	TemplateTypeNone TemplateType = iota
+
+	// TemplateTypeBasicKanban is a project template type that has basic predefined columns
+	TemplateTypeBasicKanban
+
+	// TemplateTypeBugTriage is a project template type that has predefined columns suited to hunting down bugs
+	TemplateTypeBugTriage
+)
+
+// GetTemplateConfigs retrieves the template configs of configurations project columns could have
+func GetTemplateConfigs() []TemplateConfig {
+	return []TemplateConfig{
+		{TemplateTypeNone, "repo.projects.type.none"},
+		{TemplateTypeBasicKanban, "repo.projects.type.basic_kanban"},
+		{TemplateTypeBugTriage, "repo.projects.type.bug_triage"},
+	}
+}
+
+// IsTemplateTypeValid checks if the project template type is valid
+func IsTemplateTypeValid(p TemplateType) bool {
+	switch p {
+	case TemplateTypeNone, TemplateTypeBasicKanban, TemplateTypeBugTriage:
+		return true
+	default:
+		return false
+	}
+}
diff --git a/models/pull/automerge.go b/models/pull/automerge.go
new file mode 100644
index 0000000..f31159a
--- /dev/null
+++ b/models/pull/automerge.go
@@ -0,0 +1,97 @@
+// Copyright 2022 Gitea. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package pull
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// AutoMerge represents a pull request scheduled for merging when checks succeed
+type AutoMerge struct {
+	ID          int64                 `xorm:"pk autoincr"`
+	PullID      int64                 `xorm:"UNIQUE"`
+	DoerID      int64                 `xorm:"INDEX NOT NULL"`
+	Doer        *user_model.User      `xorm:"-"`
+	MergeStyle  repo_model.MergeStyle `xorm:"varchar(30)"`
+	Message     string                `xorm:"LONGTEXT"`
+	CreatedUnix timeutil.TimeStamp    `xorm:"created"`
+}
+
+// TableName return database table name for xorm
+func (AutoMerge) TableName() string {
+	return "pull_auto_merge"
+}
+
+func init() {
+	db.RegisterModel(new(AutoMerge))
+}
+
+// ErrAlreadyScheduledToAutoMerge represents a "PullRequestHasMerged"-error
+type ErrAlreadyScheduledToAutoMerge struct {
+	PullID int64
+}
+
+func (err ErrAlreadyScheduledToAutoMerge) Error() string {
+	return fmt.Sprintf("pull request is already scheduled to auto merge when checks succeed [pull_id: %d]", err.PullID)
+}
+
+// IsErrAlreadyScheduledToAutoMerge checks if an error is a ErrAlreadyScheduledToAutoMerge.
+func IsErrAlreadyScheduledToAutoMerge(err error) bool {
+	_, ok := err.(ErrAlreadyScheduledToAutoMerge)
+	return ok
+}
+
+// ScheduleAutoMerge schedules a pull request to be merged when all checks succeed
+func ScheduleAutoMerge(ctx context.Context, doer *user_model.User, pullID int64, style repo_model.MergeStyle, message string) error {
+	// Check if we already have a merge scheduled for that pull request
+	if exists, _, err := GetScheduledMergeByPullID(ctx, pullID); err != nil {
+		return err
+	} else if exists {
+		return ErrAlreadyScheduledToAutoMerge{PullID: pullID}
+	}
+
+	_, err := db.GetEngine(ctx).Insert(&AutoMerge{
+		DoerID:     doer.ID,
+		PullID:     pullID,
+		MergeStyle: style,
+		Message:    message,
+	})
+	return err
+}
+
+// GetScheduledMergeByPullID gets a scheduled pull request merge by pull request id
+func GetScheduledMergeByPullID(ctx context.Context, pullID int64) (bool, *AutoMerge, error) {
+	scheduledPRM := &AutoMerge{}
+	exists, err := db.GetEngine(ctx).Where("pull_id = ?", pullID).Get(scheduledPRM)
+	if err != nil || !exists {
+		return false, nil, err
+	}
+
+	doer, err := user_model.GetPossibleUserByID(ctx, scheduledPRM.DoerID)
+	if err != nil {
+		return false, nil, err
+	}
+
+	scheduledPRM.Doer = doer
+	return true, scheduledPRM, nil
+}
+
+// DeleteScheduledAutoMerge delete a scheduled pull request
+func DeleteScheduledAutoMerge(ctx context.Context, pullID int64) error {
+	exist, scheduledPRM, err := GetScheduledMergeByPullID(ctx, pullID)
+	if err != nil {
+		return err
+	} else if !exist {
+		return db.ErrNotExist{Resource: "auto_merge", ID: pullID}
+	}
+
+	_, err = db.GetEngine(ctx).ID(scheduledPRM.ID).Delete(&AutoMerge{})
+	return err
+}
diff --git a/models/pull/review_state.go b/models/pull/review_state.go
new file mode 100644
index 0000000..e46a22a
--- /dev/null
+++ b/models/pull/review_state.go
@@ -0,0 +1,139 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package pull
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// ViewedState stores for a file in which state it is currently viewed
+type ViewedState uint8
+
+const (
+	Unviewed   ViewedState = iota
+	HasChanged             // cannot be set from the UI/ API, only internally
+	Viewed
+)
+
+func (viewedState ViewedState) String() string {
+	switch viewedState {
+	case Unviewed:
+		return "unviewed"
+	case HasChanged:
+		return "has-changed"
+	case Viewed:
+		return "viewed"
+	default:
+		return fmt.Sprintf("unknown(value=%d)", viewedState)
+	}
+}
+
+// ReviewState stores for a user-PR-commit combination which files the user has already viewed
+type ReviewState struct {
+	ID           int64                  `xorm:"pk autoincr"`
+	UserID       int64                  `xorm:"NOT NULL UNIQUE(pull_commit_user)"`
+	PullID       int64                  `xorm:"NOT NULL INDEX UNIQUE(pull_commit_user) DEFAULT 0"` // Which PR was the review on?
+	CommitSHA    string                 `xorm:"NOT NULL VARCHAR(64) UNIQUE(pull_commit_user)"`     // Which commit was the head commit for the review?
+	UpdatedFiles map[string]ViewedState `xorm:"NOT NULL LONGTEXT JSON"`                            // Stores for each of the changed files of a PR whether they have been viewed, changed since last viewed, or not viewed
+	UpdatedUnix  timeutil.TimeStamp     `xorm:"updated"`                                           // Is an accurate indicator of the order of commits as we do not expect it to be possible to make reviews on previous commits
+}
+
+func init() {
+	db.RegisterModel(new(ReviewState))
+}
+
+// GetReviewState returns the ReviewState with all given values prefilled, whether or not it exists in the database.
+// If the review didn't exist before in the database, it won't afterwards either.
+// The returned boolean shows whether the review exists in the database
+func GetReviewState(ctx context.Context, userID, pullID int64, commitSHA string) (*ReviewState, bool, error) {
+	review := &ReviewState{UserID: userID, PullID: pullID, CommitSHA: commitSHA}
+	has, err := db.GetEngine(ctx).Get(review)
+	return review, has, err
+}
+
+// UpdateReviewState updates the given review inside the database, regardless of whether it existed before or not
+// The given map of files with their viewed state will be merged with the previous review, if present
+func UpdateReviewState(ctx context.Context, userID, pullID int64, commitSHA string, updatedFiles map[string]ViewedState) error {
+	log.Trace("Updating review for user %d, repo %d, commit %s with the updated files %v.", userID, pullID, commitSHA, updatedFiles)
+
+	review, exists, err := GetReviewState(ctx, userID, pullID, commitSHA)
+	if err != nil {
+		return err
+	}
+
+	if exists {
+		review.UpdatedFiles = mergeFiles(review.UpdatedFiles, updatedFiles)
+	} else if previousReview, err := getNewestReviewStateApartFrom(ctx, userID, pullID, commitSHA); err != nil {
+		return err
+
+		// Overwrite the viewed files of the previous review if present
+	} else if previousReview != nil {
+		review.UpdatedFiles = mergeFiles(previousReview.UpdatedFiles, updatedFiles)
+	} else {
+		review.UpdatedFiles = updatedFiles
+	}
+
+	// Insert or Update review
+	engine := db.GetEngine(ctx)
+	if !exists {
+		log.Trace("Inserting new review for user %d, repo %d, commit %s with the updated files %v.", userID, pullID, commitSHA, review.UpdatedFiles)
+		_, err := engine.Insert(review)
+		return err
+	}
+	log.Trace("Updating already existing review with ID %d (user %d, repo %d, commit %s) with the updated files %v.", review.ID, userID, pullID, commitSHA, review.UpdatedFiles)
+	_, err = engine.ID(review.ID).Update(&ReviewState{UpdatedFiles: review.UpdatedFiles})
+	return err
+}
+
+// mergeFiles merges the given maps of files with their viewing state into one map.
+// Values from oldFiles will be overridden with values from newFiles
+func mergeFiles(oldFiles, newFiles map[string]ViewedState) map[string]ViewedState {
+	if oldFiles == nil {
+		return newFiles
+	} else if newFiles == nil {
+		return oldFiles
+	}
+
+	for file, viewed := range newFiles {
+		oldFiles[file] = viewed
+	}
+	return oldFiles
+}
+
+// GetNewestReviewState gets the newest review of the current user in the current PR.
+// The returned PR Review will be nil if the user has not yet reviewed this PR.
+func GetNewestReviewState(ctx context.Context, userID, pullID int64) (*ReviewState, error) {
+	var review ReviewState
+	has, err := db.GetEngine(ctx).Where("user_id = ?", userID).And("pull_id = ?", pullID).OrderBy("updated_unix DESC").Get(&review)
+	if err != nil || !has {
+		return nil, err
+	}
+	return &review, err
+}
+
+// getNewestReviewStateApartFrom is like GetNewestReview, except that the second newest review will be returned if the newest review points at the given commit.
+// The returned PR Review will be nil if the user has not yet reviewed this PR.
+func getNewestReviewStateApartFrom(ctx context.Context, userID, pullID int64, commitSHA string) (*ReviewState, error) {
+	var reviews []ReviewState
+	err := db.GetEngine(ctx).Where("user_id = ?", userID).And("pull_id = ?", pullID).OrderBy("updated_unix DESC").Limit(2).Find(&reviews)
+	// It would also be possible to use ".And("commit_sha != ?", commitSHA)" instead of the error handling below
+	// However, benchmarks show drastically improved performance by not doing that
+
+	// Error cases in which no review should be returned
+	if err != nil || len(reviews) == 0 || (len(reviews) == 1 && reviews[0].CommitSHA == commitSHA) {
+		return nil, err
+
+		// The first review points at the commit to exclude, hence skip to the second review
+	} else if len(reviews) >= 2 && reviews[0].CommitSHA == commitSHA {
+		return &reviews[1], nil
+	}
+
+	// As we have no error cases left, the result must be the first element in the list
+	return &reviews[0], nil
+}
diff --git a/models/quota/default.go b/models/quota/default.go
new file mode 100644
index 0000000..6b553d6
--- /dev/null
+++ b/models/quota/default.go
@@ -0,0 +1,25 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import (
+	"code.gitea.io/gitea/modules/setting"
+)
+
+func EvaluateDefault(used Used, forSubject LimitSubject) bool {
+	groups := GroupList{
+		&Group{
+			Name: "builtin-default-group",
+			Rules: []Rule{
+				{
+					Name:     "builtin-default-rule",
+					Limit:    setting.Quota.Default.Total,
+					Subjects: LimitSubjects{LimitSubjectSizeAll},
+				},
+			},
+		},
+	}
+
+	return groups.Evaluate(used, forSubject)
+}
diff --git a/models/quota/errors.go b/models/quota/errors.go
new file mode 100644
index 0000000..962c8b1
--- /dev/null
+++ b/models/quota/errors.go
@@ -0,0 +1,127 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import "fmt"
+
+type ErrRuleAlreadyExists struct {
+	Name string
+}
+
+func IsErrRuleAlreadyExists(err error) bool {
+	_, ok := err.(ErrRuleAlreadyExists)
+	return ok
+}
+
+func (err ErrRuleAlreadyExists) Error() string {
+	return fmt.Sprintf("rule already exists: [name: %s]", err.Name)
+}
+
+type ErrRuleNotFound struct {
+	Name string
+}
+
+func IsErrRuleNotFound(err error) bool {
+	_, ok := err.(ErrRuleNotFound)
+	return ok
+}
+
+func (err ErrRuleNotFound) Error() string {
+	return fmt.Sprintf("rule not found: [name: %s]", err.Name)
+}
+
+type ErrGroupAlreadyExists struct {
+	Name string
+}
+
+func IsErrGroupAlreadyExists(err error) bool {
+	_, ok := err.(ErrGroupAlreadyExists)
+	return ok
+}
+
+func (err ErrGroupAlreadyExists) Error() string {
+	return fmt.Sprintf("group already exists: [name: %s]", err.Name)
+}
+
+type ErrGroupNotFound struct {
+	Name string
+}
+
+func IsErrGroupNotFound(err error) bool {
+	_, ok := err.(ErrGroupNotFound)
+	return ok
+}
+
+func (err ErrGroupNotFound) Error() string {
+	return fmt.Sprintf("group not found: [group: %s]", err.Name)
+}
+
+type ErrUserAlreadyInGroup struct {
+	GroupName string
+	UserID    int64
+}
+
+func IsErrUserAlreadyInGroup(err error) bool {
+	_, ok := err.(ErrUserAlreadyInGroup)
+	return ok
+}
+
+func (err ErrUserAlreadyInGroup) Error() string {
+	return fmt.Sprintf("user already in group: [group: %s, userID: %d]", err.GroupName, err.UserID)
+}
+
+type ErrUserNotInGroup struct {
+	GroupName string
+	UserID    int64
+}
+
+func IsErrUserNotInGroup(err error) bool {
+	_, ok := err.(ErrUserNotInGroup)
+	return ok
+}
+
+func (err ErrUserNotInGroup) Error() string {
+	return fmt.Sprintf("user not in group: [group: %s, userID: %d]", err.GroupName, err.UserID)
+}
+
+type ErrRuleAlreadyInGroup struct {
+	GroupName string
+	RuleName  string
+}
+
+func IsErrRuleAlreadyInGroup(err error) bool {
+	_, ok := err.(ErrRuleAlreadyInGroup)
+	return ok
+}
+
+func (err ErrRuleAlreadyInGroup) Error() string {
+	return fmt.Sprintf("rule already in group: [group: %s, rule: %s]", err.GroupName, err.RuleName)
+}
+
+type ErrRuleNotInGroup struct {
+	GroupName string
+	RuleName  string
+}
+
+func IsErrRuleNotInGroup(err error) bool {
+	_, ok := err.(ErrRuleNotInGroup)
+	return ok
+}
+
+func (err ErrRuleNotInGroup) Error() string {
+	return fmt.Sprintf("rule not in group: [group: %s, rule: %s]", err.GroupName, err.RuleName)
+}
+
+type ErrParseLimitSubjectUnrecognized struct {
+	Subject string
+}
+
+func IsErrParseLimitSubjectUnrecognized(err error) bool {
+	_, ok := err.(ErrParseLimitSubjectUnrecognized)
+	return ok
+}
+
+func (err ErrParseLimitSubjectUnrecognized) Error() string {
+	return fmt.Sprintf("unrecognized quota limit subject: [subject: %s]", err.Subject)
+}
diff --git a/models/quota/group.go b/models/quota/group.go
new file mode 100644
index 0000000..0acb5b2
--- /dev/null
+++ b/models/quota/group.go
@@ -0,0 +1,401 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+
+	"xorm.io/builder"
+)
+
+type (
+	GroupList []*Group
+	Group     struct {
+		// Name of the quota group
+		Name  string `json:"name" xorm:"pk NOT NULL" binding:"Required"`
+		Rules []Rule `json:"rules" xorm:"-"`
+	}
+)
+
+type GroupRuleMapping struct {
+	ID        int64  `xorm:"pk autoincr" json:"-"`
+	GroupName string `xorm:"index unique(qgrm_gr) not null" json:"group_name"`
+	RuleName  string `xorm:"unique(qgrm_gr) not null" json:"rule_name"`
+}
+
+type Kind int
+
+const (
+	KindUser Kind = iota
+)
+
+type GroupMapping struct {
+	ID        int64  `xorm:"pk autoincr"`
+	Kind      Kind   `xorm:"unique(qgm_kmg) not null"`
+	MappedID  int64  `xorm:"unique(qgm_kmg) not null"`
+	GroupName string `xorm:"index unique(qgm_kmg) not null"`
+}
+
+func (g *Group) TableName() string {
+	return "quota_group"
+}
+
+func (grm *GroupRuleMapping) TableName() string {
+	return "quota_group_rule_mapping"
+}
+
+func (ugm *GroupMapping) TableName() string {
+	return "quota_group_mapping"
+}
+
+func (g *Group) LoadRules(ctx context.Context) error {
+	return db.GetEngine(ctx).Select("`quota_rule`.*").
+		Table("quota_rule").
+		Join("INNER", "`quota_group_rule_mapping`", "`quota_group_rule_mapping`.rule_name = `quota_rule`.name").
+		Where("`quota_group_rule_mapping`.group_name = ?", g.Name).
+		Find(&g.Rules)
+}
+
+func (g *Group) isUserInGroup(ctx context.Context, userID int64) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("kind = ? AND mapped_id = ? AND group_name = ?", KindUser, userID, g.Name).
+		Get(&GroupMapping{})
+}
+
+func (g *Group) AddUserByID(ctx context.Context, userID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	exists, err := g.isUserInGroup(ctx, userID)
+	if err != nil {
+		return err
+	} else if exists {
+		return ErrUserAlreadyInGroup{GroupName: g.Name, UserID: userID}
+	}
+
+	_, err = db.GetEngine(ctx).Insert(&GroupMapping{
+		Kind:      KindUser,
+		MappedID:  userID,
+		GroupName: g.Name,
+	})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func (g *Group) RemoveUserByID(ctx context.Context, userID int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	exists, err := g.isUserInGroup(ctx, userID)
+	if err != nil {
+		return err
+	} else if !exists {
+		return ErrUserNotInGroup{GroupName: g.Name, UserID: userID}
+	}
+
+	_, err = db.GetEngine(ctx).Delete(&GroupMapping{
+		Kind:      KindUser,
+		MappedID:  userID,
+		GroupName: g.Name,
+	})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func (g *Group) isRuleInGroup(ctx context.Context, ruleName string) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("group_name = ? AND rule_name = ?", g.Name, ruleName).
+		Get(&GroupRuleMapping{})
+}
+
+func (g *Group) AddRuleByName(ctx context.Context, ruleName string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	exists, err := DoesRuleExist(ctx, ruleName)
+	if err != nil {
+		return err
+	} else if !exists {
+		return ErrRuleNotFound{Name: ruleName}
+	}
+
+	has, err := g.isRuleInGroup(ctx, ruleName)
+	if err != nil {
+		return err
+	} else if has {
+		return ErrRuleAlreadyInGroup{GroupName: g.Name, RuleName: ruleName}
+	}
+
+	_, err = db.GetEngine(ctx).Insert(&GroupRuleMapping{
+		GroupName: g.Name,
+		RuleName:  ruleName,
+	})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func (g *Group) RemoveRuleByName(ctx context.Context, ruleName string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	exists, err := g.isRuleInGroup(ctx, ruleName)
+	if err != nil {
+		return err
+	} else if !exists {
+		return ErrRuleNotInGroup{GroupName: g.Name, RuleName: ruleName}
+	}
+
+	_, err = db.GetEngine(ctx).Delete(&GroupRuleMapping{
+		GroupName: g.Name,
+		RuleName:  ruleName,
+	})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+var affectsMap = map[LimitSubject]LimitSubjects{
+	LimitSubjectSizeAll: {
+		LimitSubjectSizeReposAll,
+		LimitSubjectSizeGitLFS,
+		LimitSubjectSizeAssetsAll,
+	},
+	LimitSubjectSizeReposAll: {
+		LimitSubjectSizeReposPublic,
+		LimitSubjectSizeReposPrivate,
+	},
+	LimitSubjectSizeAssetsAll: {
+		LimitSubjectSizeAssetsAttachmentsAll,
+		LimitSubjectSizeAssetsArtifacts,
+		LimitSubjectSizeAssetsPackagesAll,
+	},
+	LimitSubjectSizeAssetsAttachmentsAll: {
+		LimitSubjectSizeAssetsAttachmentsIssues,
+		LimitSubjectSizeAssetsAttachmentsReleases,
+	},
+}
+
+func (g *Group) Evaluate(used Used, forSubject LimitSubject) (bool, bool) {
+	var found bool
+	for _, rule := range g.Rules {
+		ok, has := rule.Evaluate(used, forSubject)
+		if has {
+			found = true
+			if !ok {
+				return false, true
+			}
+		}
+	}
+
+	if !found {
+		// If Evaluation for forSubject did not succeed, try evaluating against
+		// subjects below
+
+		for _, subject := range affectsMap[forSubject] {
+			ok, has := g.Evaluate(used, subject)
+			if has {
+				found = true
+				if !ok {
+					return false, true
+				}
+			}
+		}
+	}
+
+	return true, found
+}
+
+func (gl *GroupList) Evaluate(used Used, forSubject LimitSubject) bool {
+	// If there are no groups, use the configured defaults:
+	if gl == nil || len(*gl) == 0 {
+		return EvaluateDefault(used, forSubject)
+	}
+
+	for _, group := range *gl {
+		ok, has := group.Evaluate(used, forSubject)
+		if has && ok {
+			return true
+		}
+	}
+	return false
+}
+
+func GetGroupByName(ctx context.Context, name string) (*Group, error) {
+	var group Group
+	has, err := db.GetEngine(ctx).Where("name = ?", name).Get(&group)
+	if has {
+		if err = group.LoadRules(ctx); err != nil {
+			return nil, err
+		}
+		return &group, nil
+	}
+	return nil, err
+}
+
+func ListGroups(ctx context.Context) (GroupList, error) {
+	var groups GroupList
+	err := db.GetEngine(ctx).Find(&groups)
+	return groups, err
+}
+
+func doesGroupExist(ctx context.Context, name string) (bool, error) {
+	return db.GetEngine(ctx).Where("name = ?", name).Get(&Group{})
+}
+
+func CreateGroup(ctx context.Context, name string) (*Group, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	exists, err := doesGroupExist(ctx, name)
+	if err != nil {
+		return nil, err
+	} else if exists {
+		return nil, ErrGroupAlreadyExists{Name: name}
+	}
+
+	group := Group{Name: name}
+	_, err = db.GetEngine(ctx).Insert(group)
+	if err != nil {
+		return nil, err
+	}
+	return &group, committer.Commit()
+}
+
+func ListUsersInGroup(ctx context.Context, name string) ([]*user_model.User, error) {
+	group, err := GetGroupByName(ctx, name)
+	if err != nil {
+		return nil, err
+	}
+
+	var users []*user_model.User
+	err = db.GetEngine(ctx).Select("`user`.*").
+		Table("user").
+		Join("INNER", "`quota_group_mapping`", "`quota_group_mapping`.mapped_id = `user`.id").
+		Where("`quota_group_mapping`.kind = ? AND `quota_group_mapping`.group_name = ?", KindUser, group.Name).
+		Find(&users)
+	return users, err
+}
+
+func DeleteGroupByName(ctx context.Context, name string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	_, err = db.GetEngine(ctx).Delete(GroupMapping{
+		GroupName: name,
+	})
+	if err != nil {
+		return err
+	}
+	_, err = db.GetEngine(ctx).Delete(GroupRuleMapping{
+		GroupName: name,
+	})
+	if err != nil {
+		return err
+	}
+
+	_, err = db.GetEngine(ctx).Delete(Group{Name: name})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func SetUserGroups(ctx context.Context, userID int64, groups *[]string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// First: remove the user from any groups
+	_, err = db.GetEngine(ctx).Where("kind = ? AND mapped_id = ?", KindUser, userID).Delete(GroupMapping{})
+	if err != nil {
+		return err
+	}
+
+	if groups == nil {
+		return nil
+	}
+
+	// Then add the user to each group listed
+	for _, groupName := range *groups {
+		group, err := GetGroupByName(ctx, groupName)
+		if err != nil {
+			return err
+		}
+		if group == nil {
+			return ErrGroupNotFound{Name: groupName}
+		}
+		err = group.AddUserByID(ctx, userID)
+		if err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
+
+func GetGroupsForUser(ctx context.Context, userID int64) (GroupList, error) {
+	var groups GroupList
+	err := db.GetEngine(ctx).
+		Where(builder.In("name",
+			builder.Select("group_name").
+				From("quota_group_mapping").
+				Where(builder.And(
+					builder.Eq{"kind": KindUser},
+					builder.Eq{"mapped_id": userID}),
+				))).
+		Find(&groups)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(groups) == 0 {
+		err = db.GetEngine(ctx).Where(builder.In("name", setting.Quota.DefaultGroups)).Find(&groups)
+		if err != nil {
+			return nil, err
+		}
+		if len(groups) == 0 {
+			return nil, nil
+		}
+	}
+
+	for _, group := range groups {
+		err = group.LoadRules(ctx)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return groups, nil
+}
diff --git a/models/quota/limit_subject.go b/models/quota/limit_subject.go
new file mode 100644
index 0000000..4a49d33
--- /dev/null
+++ b/models/quota/limit_subject.go
@@ -0,0 +1,69 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import "fmt"
+
+type (
+	LimitSubject  int
+	LimitSubjects []LimitSubject
+)
+
+const (
+	LimitSubjectNone LimitSubject = iota
+	LimitSubjectSizeAll
+	LimitSubjectSizeReposAll
+	LimitSubjectSizeReposPublic
+	LimitSubjectSizeReposPrivate
+	LimitSubjectSizeGitAll
+	LimitSubjectSizeGitLFS
+	LimitSubjectSizeAssetsAll
+	LimitSubjectSizeAssetsAttachmentsAll
+	LimitSubjectSizeAssetsAttachmentsIssues
+	LimitSubjectSizeAssetsAttachmentsReleases
+	LimitSubjectSizeAssetsArtifacts
+	LimitSubjectSizeAssetsPackagesAll
+	LimitSubjectSizeWiki
+
+	LimitSubjectFirst = LimitSubjectSizeAll
+	LimitSubjectLast  = LimitSubjectSizeWiki
+)
+
+var limitSubjectRepr = map[string]LimitSubject{
+	"none":                             LimitSubjectNone,
+	"size:all":                         LimitSubjectSizeAll,
+	"size:repos:all":                   LimitSubjectSizeReposAll,
+	"size:repos:public":                LimitSubjectSizeReposPublic,
+	"size:repos:private":               LimitSubjectSizeReposPrivate,
+	"size:git:all":                     LimitSubjectSizeGitAll,
+	"size:git:lfs":                     LimitSubjectSizeGitLFS,
+	"size:assets:all":                  LimitSubjectSizeAssetsAll,
+	"size:assets:attachments:all":      LimitSubjectSizeAssetsAttachmentsAll,
+	"size:assets:attachments:issues":   LimitSubjectSizeAssetsAttachmentsIssues,
+	"size:assets:attachments:releases": LimitSubjectSizeAssetsAttachmentsReleases,
+	"size:assets:artifacts":            LimitSubjectSizeAssetsArtifacts,
+	"size:assets:packages:all":         LimitSubjectSizeAssetsPackagesAll,
+	"size:assets:wiki":                 LimitSubjectSizeWiki,
+}
+
+func (subject LimitSubject) String() string {
+	for repr, limit := range limitSubjectRepr {
+		if limit == subject {
+			return repr
+		}
+	}
+	return "<unknown>"
+}
+
+func (subjects LimitSubjects) GoString() string {
+	return fmt.Sprintf("%T{%+v}", subjects, subjects)
+}
+
+func ParseLimitSubject(repr string) (LimitSubject, error) {
+	result, has := limitSubjectRepr[repr]
+	if !has {
+		return LimitSubjectNone, ErrParseLimitSubjectUnrecognized{Subject: repr}
+	}
+	return result, nil
+}
diff --git a/models/quota/quota.go b/models/quota/quota.go
new file mode 100644
index 0000000..d38bfab
--- /dev/null
+++ b/models/quota/quota.go
@@ -0,0 +1,36 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+func init() {
+	db.RegisterModel(new(Rule))
+	db.RegisterModel(new(Group))
+	db.RegisterModel(new(GroupRuleMapping))
+	db.RegisterModel(new(GroupMapping))
+}
+
+func EvaluateForUser(ctx context.Context, userID int64, subject LimitSubject) (bool, error) {
+	if !setting.Quota.Enabled {
+		return true, nil
+	}
+
+	groups, err := GetGroupsForUser(ctx, userID)
+	if err != nil {
+		return false, err
+	}
+
+	used, err := GetUsedForUser(ctx, userID)
+	if err != nil {
+		return false, err
+	}
+
+	return groups.Evaluate(*used, subject), nil
+}
diff --git a/models/quota/quota_group_test.go b/models/quota/quota_group_test.go
new file mode 100644
index 0000000..bc25858
--- /dev/null
+++ b/models/quota/quota_group_test.go
@@ -0,0 +1,208 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota_test
+
+import (
+	"testing"
+
+	quota_model "code.gitea.io/gitea/models/quota"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestQuotaGroupAllRulesMustPass(t *testing.T) {
+	unlimitedRule := quota_model.Rule{
+		Limit: -1,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+	denyRule := quota_model.Rule{
+		Limit: 0,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+	group := quota_model.Group{
+		Rules: []quota_model.Rule{
+			unlimitedRule,
+			denyRule,
+		},
+	}
+
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 1024
+
+	// Within a group, *all* rules must pass. Thus, if we have a deny-all rule,
+	// and an unlimited rule, that will always fail.
+	ok, has := group.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.True(t, has)
+	assert.False(t, ok)
+}
+
+func TestQuotaGroupRuleScenario1(t *testing.T) {
+	group := quota_model.Group{
+		Rules: []quota_model.Rule{
+			{
+				Limit: 1024,
+				Subjects: quota_model.LimitSubjects{
+					quota_model.LimitSubjectSizeAssetsAttachmentsReleases,
+					quota_model.LimitSubjectSizeGitLFS,
+					quota_model.LimitSubjectSizeAssetsPackagesAll,
+				},
+			},
+			{
+				Limit: 0,
+				Subjects: quota_model.LimitSubjects{
+					quota_model.LimitSubjectSizeGitLFS,
+				},
+			},
+		},
+	}
+
+	used := quota_model.Used{}
+	used.Size.Assets.Attachments.Releases = 512
+	used.Size.Assets.Packages.All = 256
+	used.Size.Git.LFS = 16
+
+	ok, has := group.Evaluate(used, quota_model.LimitSubjectSizeAssetsAttachmentsReleases)
+	assert.True(t, has, "size:assets:attachments:releases is covered")
+	assert.True(t, ok, "size:assets:attachments:releases passes")
+
+	ok, has = group.Evaluate(used, quota_model.LimitSubjectSizeAssetsPackagesAll)
+	assert.True(t, has, "size:assets:packages:all is covered")
+	assert.True(t, ok, "size:assets:packages:all passes")
+
+	ok, has = group.Evaluate(used, quota_model.LimitSubjectSizeGitLFS)
+	assert.True(t, has, "size:git:lfs is covered")
+	assert.False(t, ok, "size:git:lfs fails")
+
+	ok, has = group.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.True(t, has, "size:all is covered")
+	assert.False(t, ok, "size:all fails")
+}
+
+func TestQuotaGroupRuleCombination(t *testing.T) {
+	repoRule := quota_model.Rule{
+		Limit: 4096,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeReposAll,
+		},
+	}
+	packagesRule := quota_model.Rule{
+		Limit: 0,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAssetsPackagesAll,
+		},
+	}
+
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 1024
+	used.Size.Assets.Packages.All = 1024
+
+	group := quota_model.Group{
+		Rules: []quota_model.Rule{
+			repoRule,
+			packagesRule,
+		},
+	}
+
+	// Git LFS isn't covered by any rule
+	_, has := group.Evaluate(used, quota_model.LimitSubjectSizeGitLFS)
+	assert.False(t, has)
+
+	// repos:all is covered, and is passing
+	ok, has := group.Evaluate(used, quota_model.LimitSubjectSizeReposAll)
+	assert.True(t, has)
+	assert.True(t, ok)
+
+	// packages:all is covered, and is failing
+	ok, has = group.Evaluate(used, quota_model.LimitSubjectSizeAssetsPackagesAll)
+	assert.True(t, has)
+	assert.False(t, ok)
+
+	// size:all is covered, and is failing (due to packages:all being over quota)
+	ok, has = group.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.True(t, has, "size:all should be covered")
+	assert.False(t, ok, "size:all should fail")
+}
+
+func TestQuotaGroupListsRequireOnlyOnePassing(t *testing.T) {
+	unlimitedRule := quota_model.Rule{
+		Limit: -1,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+	denyRule := quota_model.Rule{
+		Limit: 0,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+
+	denyGroup := quota_model.Group{
+		Rules: []quota_model.Rule{
+			denyRule,
+		},
+	}
+	unlimitedGroup := quota_model.Group{
+		Rules: []quota_model.Rule{
+			unlimitedRule,
+		},
+	}
+
+	groups := quota_model.GroupList{&denyGroup, &unlimitedGroup}
+
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 1024
+
+	// In a group list, if any group passes, the entire evaluation passes.
+	ok := groups.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.True(t, ok)
+}
+
+func TestQuotaGroupListAllFailing(t *testing.T) {
+	denyRule := quota_model.Rule{
+		Limit: 0,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+	limitedRule := quota_model.Rule{
+		Limit: 1024,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAll,
+		},
+	}
+
+	denyGroup := quota_model.Group{
+		Rules: []quota_model.Rule{
+			denyRule,
+		},
+	}
+	limitedGroup := quota_model.Group{
+		Rules: []quota_model.Rule{
+			limitedRule,
+		},
+	}
+
+	groups := quota_model.GroupList{&denyGroup, &limitedGroup}
+
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 2048
+
+	ok := groups.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.False(t, ok)
+}
+
+func TestQuotaGroupListEmpty(t *testing.T) {
+	groups := quota_model.GroupList{}
+
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 2048
+
+	ok := groups.Evaluate(used, quota_model.LimitSubjectSizeAll)
+	assert.True(t, ok)
+}
diff --git a/models/quota/quota_rule_test.go b/models/quota/quota_rule_test.go
new file mode 100644
index 0000000..1e1daf4
--- /dev/null
+++ b/models/quota/quota_rule_test.go
@@ -0,0 +1,304 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota_test
+
+import (
+	"testing"
+
+	quota_model "code.gitea.io/gitea/models/quota"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func makeFullyUsed() quota_model.Used {
+	return quota_model.Used{
+		Size: quota_model.UsedSize{
+			Repos: quota_model.UsedSizeRepos{
+				Public:  1024,
+				Private: 1024,
+			},
+			Git: quota_model.UsedSizeGit{
+				LFS: 1024,
+			},
+			Assets: quota_model.UsedSizeAssets{
+				Attachments: quota_model.UsedSizeAssetsAttachments{
+					Issues:   1024,
+					Releases: 1024,
+				},
+				Artifacts: 1024,
+				Packages: quota_model.UsedSizeAssetsPackages{
+					All: 1024,
+				},
+			},
+		},
+	}
+}
+
+func makePartiallyUsed() quota_model.Used {
+	return quota_model.Used{
+		Size: quota_model.UsedSize{
+			Repos: quota_model.UsedSizeRepos{
+				Public: 1024,
+			},
+			Assets: quota_model.UsedSizeAssets{
+				Attachments: quota_model.UsedSizeAssetsAttachments{
+					Releases: 1024,
+				},
+			},
+		},
+	}
+}
+
+func setUsed(used quota_model.Used, subject quota_model.LimitSubject, value int64) *quota_model.Used {
+	switch subject {
+	case quota_model.LimitSubjectSizeReposPublic:
+		used.Size.Repos.Public = value
+		return &used
+	case quota_model.LimitSubjectSizeReposPrivate:
+		used.Size.Repos.Private = value
+		return &used
+	case quota_model.LimitSubjectSizeGitLFS:
+		used.Size.Git.LFS = value
+		return &used
+	case quota_model.LimitSubjectSizeAssetsAttachmentsIssues:
+		used.Size.Assets.Attachments.Issues = value
+		return &used
+	case quota_model.LimitSubjectSizeAssetsAttachmentsReleases:
+		used.Size.Assets.Attachments.Releases = value
+		return &used
+	case quota_model.LimitSubjectSizeAssetsArtifacts:
+		used.Size.Assets.Artifacts = value
+		return &used
+	case quota_model.LimitSubjectSizeAssetsPackagesAll:
+		used.Size.Assets.Packages.All = value
+		return &used
+	case quota_model.LimitSubjectSizeWiki:
+	}
+
+	return nil
+}
+
+func assertEvaluation(t *testing.T, rule quota_model.Rule, used quota_model.Used, subject quota_model.LimitSubject, expected bool) {
+	t.Helper()
+
+	t.Run(subject.String(), func(t *testing.T) {
+		ok, has := rule.Evaluate(used, subject)
+		assert.True(t, has)
+		assert.Equal(t, expected, ok)
+	})
+}
+
+func TestQuotaRuleNoEvaluation(t *testing.T) {
+	rule := quota_model.Rule{
+		Limit: 1024,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeAssetsAttachmentsAll,
+		},
+	}
+	used := quota_model.Used{}
+	used.Size.Repos.Public = 4096
+
+	_, has := rule.Evaluate(used, quota_model.LimitSubjectSizeReposAll)
+
+	// We have a rule for "size:assets:attachments:all", and query for
+	// "size:repos:all". We don't cover that subject, so the evaluation returns
+	// with no rules found.
+	assert.False(t, has)
+}
+
+func TestQuotaRuleDirectEvaluation(t *testing.T) {
+	// This function is meant to test direct rule evaluation: cases where we set
+	// a rule for a subject, and we evaluate against the same subject.
+
+	runTest := func(t *testing.T, subject quota_model.LimitSubject, limit, used int64, expected bool) {
+		t.Helper()
+
+		rule := quota_model.Rule{
+			Limit: limit,
+			Subjects: quota_model.LimitSubjects{
+				subject,
+			},
+		}
+		usedObj := setUsed(quota_model.Used{}, subject, used)
+		if usedObj == nil {
+			return
+		}
+
+		assertEvaluation(t, rule, *usedObj, subject, expected)
+	}
+
+	t.Run("limit:0", func(t *testing.T) {
+		// With limit:0, nothing used is fine.
+		t.Run("used:0", func(t *testing.T) {
+			for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+				runTest(t, subject, 0, 0, true)
+			}
+		})
+		// With limit:0, any usage will fail evaluation
+		t.Run("used:512", func(t *testing.T) {
+			for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+				runTest(t, subject, 0, 512, false)
+			}
+		})
+	})
+
+	t.Run("limit:unlimited", func(t *testing.T) {
+		// With no limits, any usage will succeed evaluation
+		t.Run("used:512", func(t *testing.T) {
+			for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+				runTest(t, subject, -1, 512, true)
+			}
+		})
+	})
+
+	t.Run("limit:1024", func(t *testing.T) {
+		// With a set limit, usage below the limit succeeds
+		t.Run("used:512", func(t *testing.T) {
+			for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+				runTest(t, subject, 1024, 512, true)
+			}
+		})
+
+		// With a set limit, usage above the limit fails
+		t.Run("used:2048", func(t *testing.T) {
+			for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+				runTest(t, subject, 1024, 2048, false)
+			}
+		})
+	})
+}
+
+func TestQuotaRuleCombined(t *testing.T) {
+	rule := quota_model.Rule{
+		Limit: 1024,
+		Subjects: quota_model.LimitSubjects{
+			quota_model.LimitSubjectSizeGitLFS,
+			quota_model.LimitSubjectSizeAssetsAttachmentsReleases,
+			quota_model.LimitSubjectSizeAssetsPackagesAll,
+		},
+	}
+	used := quota_model.Used{
+		Size: quota_model.UsedSize{
+			Repos: quota_model.UsedSizeRepos{
+				Public: 4096,
+			},
+			Git: quota_model.UsedSizeGit{
+				LFS: 256,
+			},
+			Assets: quota_model.UsedSizeAssets{
+				Attachments: quota_model.UsedSizeAssetsAttachments{
+					Issues:   2048,
+					Releases: 256,
+				},
+				Packages: quota_model.UsedSizeAssetsPackages{
+					All: 2560,
+				},
+			},
+		},
+	}
+
+	expectationMap := map[quota_model.LimitSubject]bool{
+		quota_model.LimitSubjectSizeGitLFS:                    false,
+		quota_model.LimitSubjectSizeAssetsAttachmentsReleases: false,
+		quota_model.LimitSubjectSizeAssetsPackagesAll:         false,
+	}
+
+	for subject := quota_model.LimitSubjectFirst; subject <= quota_model.LimitSubjectLast; subject++ {
+		t.Run(subject.String(), func(t *testing.T) {
+			evalOk, evalHas := rule.Evaluate(used, subject)
+			expected, expectedHas := expectationMap[subject]
+
+			assert.Equal(t, expectedHas, evalHas)
+			if expectedHas {
+				assert.Equal(t, expected, evalOk)
+			}
+		})
+	}
+}
+
+func TestQuotaRuleSizeAll(t *testing.T) {
+	runTests := func(t *testing.T, rule quota_model.Rule, expected bool) {
+		t.Helper()
+
+		subject := quota_model.LimitSubjectSizeAll
+
+		t.Run("used:0", func(t *testing.T) {
+			used := quota_model.Used{}
+
+			assertEvaluation(t, rule, used, subject, true)
+		})
+
+		t.Run("used:some-each", func(t *testing.T) {
+			used := makeFullyUsed()
+
+			assertEvaluation(t, rule, used, subject, expected)
+		})
+
+		t.Run("used:some", func(t *testing.T) {
+			used := makePartiallyUsed()
+
+			assertEvaluation(t, rule, used, subject, expected)
+		})
+	}
+
+	// With all limits set to 0, evaluation always fails if usage > 0
+	t.Run("rule:0", func(t *testing.T) {
+		rule := quota_model.Rule{
+			Limit: 0,
+			Subjects: quota_model.LimitSubjects{
+				quota_model.LimitSubjectSizeAll,
+			},
+		}
+
+		runTests(t, rule, false)
+	})
+
+	// With no limits, evaluation always succeeds
+	t.Run("rule:unlimited", func(t *testing.T) {
+		rule := quota_model.Rule{
+			Limit: -1,
+			Subjects: quota_model.LimitSubjects{
+				quota_model.LimitSubjectSizeAll,
+			},
+		}
+
+		runTests(t, rule, true)
+	})
+
+	// With a specific, very generous limit, evaluation succeeds if the limit isn't exhausted
+	t.Run("rule:generous", func(t *testing.T) {
+		rule := quota_model.Rule{
+			Limit: 102400,
+			Subjects: quota_model.LimitSubjects{
+				quota_model.LimitSubjectSizeAll,
+			},
+		}
+
+		runTests(t, rule, true)
+
+		t.Run("limit exhaustion", func(t *testing.T) {
+			used := quota_model.Used{
+				Size: quota_model.UsedSize{
+					Repos: quota_model.UsedSizeRepos{
+						Public: 204800,
+					},
+				},
+			}
+
+			assertEvaluation(t, rule, used, quota_model.LimitSubjectSizeAll, false)
+		})
+	})
+
+	// With a specific, small limit, evaluation fails
+	t.Run("rule:limited", func(t *testing.T) {
+		rule := quota_model.Rule{
+			Limit: 512,
+			Subjects: quota_model.LimitSubjects{
+				quota_model.LimitSubjectSizeAll,
+			},
+		}
+
+		runTests(t, rule, false)
+	})
+}
diff --git a/models/quota/rule.go b/models/quota/rule.go
new file mode 100644
index 0000000..b0c6c0f
--- /dev/null
+++ b/models/quota/rule.go
@@ -0,0 +1,127 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import (
+	"context"
+	"slices"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+type Rule struct {
+	Name     string        `xorm:"pk not null" json:"name,omitempty"`
+	Limit    int64         `xorm:"NOT NULL" binding:"Required" json:"limit"`
+	Subjects LimitSubjects `json:"subjects,omitempty"`
+}
+
+func (r *Rule) TableName() string {
+	return "quota_rule"
+}
+
+func (r Rule) Evaluate(used Used, forSubject LimitSubject) (bool, bool) {
+	// If there's no limit, short circuit out
+	if r.Limit == -1 {
+		return true, true
+	}
+
+	// If the rule does not cover forSubject, bail out early
+	if !slices.Contains(r.Subjects, forSubject) {
+		return false, false
+	}
+
+	var sum int64
+	for _, subject := range r.Subjects {
+		sum += used.CalculateFor(subject)
+	}
+	return sum <= r.Limit, true
+}
+
+func (r *Rule) Edit(ctx context.Context, limit *int64, subjects *LimitSubjects) (*Rule, error) {
+	cols := []string{}
+
+	if limit != nil {
+		r.Limit = *limit
+		cols = append(cols, "limit")
+	}
+	if subjects != nil {
+		r.Subjects = *subjects
+		cols = append(cols, "subjects")
+	}
+
+	_, err := db.GetEngine(ctx).Where("name = ?", r.Name).Cols(cols...).Update(r)
+	return r, err
+}
+
+func GetRuleByName(ctx context.Context, name string) (*Rule, error) {
+	var rule Rule
+	has, err := db.GetEngine(ctx).Where("name = ?", name).Get(&rule)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, nil
+	}
+	return &rule, err
+}
+
+func ListRules(ctx context.Context) ([]Rule, error) {
+	var rules []Rule
+	err := db.GetEngine(ctx).Find(&rules)
+	return rules, err
+}
+
+func DoesRuleExist(ctx context.Context, name string) (bool, error) {
+	return db.GetEngine(ctx).
+		Where("name = ?", name).
+		Get(&Rule{})
+}
+
+func CreateRule(ctx context.Context, name string, limit int64, subjects LimitSubjects) (*Rule, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+
+	exists, err := DoesRuleExist(ctx, name)
+	if err != nil {
+		return nil, err
+	} else if exists {
+		return nil, ErrRuleAlreadyExists{Name: name}
+	}
+
+	rule := Rule{
+		Name:     name,
+		Limit:    limit,
+		Subjects: subjects,
+	}
+	_, err = db.GetEngine(ctx).Insert(rule)
+	if err != nil {
+		return nil, err
+	}
+
+	return &rule, committer.Commit()
+}
+
+func DeleteRuleByName(ctx context.Context, name string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	_, err = db.GetEngine(ctx).Delete(GroupRuleMapping{
+		RuleName: name,
+	})
+	if err != nil {
+		return err
+	}
+
+	_, err = db.GetEngine(ctx).Delete(Rule{Name: name})
+	if err != nil {
+		return err
+	}
+	return committer.Commit()
+}
diff --git a/models/quota/used.go b/models/quota/used.go
new file mode 100644
index 0000000..ff84ac2
--- /dev/null
+++ b/models/quota/used.go
@@ -0,0 +1,252 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package quota
+
+import (
+	"context"
+
+	action_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	package_model "code.gitea.io/gitea/models/packages"
+	repo_model "code.gitea.io/gitea/models/repo"
+
+	"xorm.io/builder"
+)
+
+type Used struct {
+	Size UsedSize
+}
+
+type UsedSize struct {
+	Repos  UsedSizeRepos
+	Git    UsedSizeGit
+	Assets UsedSizeAssets
+}
+
+func (u UsedSize) All() int64 {
+	return u.Repos.All() + u.Git.All(u.Repos) + u.Assets.All()
+}
+
+type UsedSizeRepos struct {
+	Public  int64
+	Private int64
+}
+
+func (u UsedSizeRepos) All() int64 {
+	return u.Public + u.Private
+}
+
+type UsedSizeGit struct {
+	LFS int64
+}
+
+func (u UsedSizeGit) All(r UsedSizeRepos) int64 {
+	return u.LFS + r.All()
+}
+
+type UsedSizeAssets struct {
+	Attachments UsedSizeAssetsAttachments
+	Artifacts   int64
+	Packages    UsedSizeAssetsPackages
+}
+
+func (u UsedSizeAssets) All() int64 {
+	return u.Attachments.All() + u.Artifacts + u.Packages.All
+}
+
+type UsedSizeAssetsAttachments struct {
+	Issues   int64
+	Releases int64
+}
+
+func (u UsedSizeAssetsAttachments) All() int64 {
+	return u.Issues + u.Releases
+}
+
+type UsedSizeAssetsPackages struct {
+	All int64
+}
+
+func (u Used) CalculateFor(subject LimitSubject) int64 {
+	switch subject {
+	case LimitSubjectNone:
+		return 0
+	case LimitSubjectSizeAll:
+		return u.Size.All()
+	case LimitSubjectSizeReposAll:
+		return u.Size.Repos.All()
+	case LimitSubjectSizeReposPublic:
+		return u.Size.Repos.Public
+	case LimitSubjectSizeReposPrivate:
+		return u.Size.Repos.Private
+	case LimitSubjectSizeGitAll:
+		return u.Size.Git.All(u.Size.Repos)
+	case LimitSubjectSizeGitLFS:
+		return u.Size.Git.LFS
+	case LimitSubjectSizeAssetsAll:
+		return u.Size.Assets.All()
+	case LimitSubjectSizeAssetsAttachmentsAll:
+		return u.Size.Assets.Attachments.All()
+	case LimitSubjectSizeAssetsAttachmentsIssues:
+		return u.Size.Assets.Attachments.Issues
+	case LimitSubjectSizeAssetsAttachmentsReleases:
+		return u.Size.Assets.Attachments.Releases
+	case LimitSubjectSizeAssetsArtifacts:
+		return u.Size.Assets.Artifacts
+	case LimitSubjectSizeAssetsPackagesAll:
+		return u.Size.Assets.Packages.All
+	case LimitSubjectSizeWiki:
+		return 0
+	}
+	return 0
+}
+
+func makeUserOwnedCondition(q string, userID int64) builder.Cond {
+	switch q {
+	case "repositories", "attachments", "artifacts":
+		return builder.Eq{"`repository`.owner_id": userID}
+	case "packages":
+		return builder.Or(
+			builder.Eq{"`repository`.owner_id": userID},
+			builder.And(
+				builder.Eq{"`package`.repo_id": 0},
+				builder.Eq{"`package`.owner_id": userID},
+			),
+		)
+	}
+	return builder.NewCond()
+}
+
+func createQueryFor(ctx context.Context, userID int64, q string) db.Engine {
+	session := db.GetEngine(ctx)
+
+	switch q {
+	case "repositories":
+		session = session.Table("repository")
+	case "attachments":
+		session = session.
+			Table("attachment").
+			Join("INNER", "`repository`", "`attachment`.repo_id = `repository`.id")
+	case "artifacts":
+		session = session.
+			Table("action_artifact").
+			Join("INNER", "`repository`", "`action_artifact`.repo_id = `repository`.id")
+	case "packages":
+		session = session.
+			Table("package_version").
+			Join("INNER", "`package_file`", "`package_file`.version_id = `package_version`.id").
+			Join("INNER", "`package_blob`", "`package_file`.blob_id = `package_blob`.id").
+			Join("INNER", "`package`", "`package_version`.package_id = `package`.id").
+			Join("LEFT OUTER", "`repository`", "`package`.repo_id = `repository`.id")
+	}
+
+	return session.Where(makeUserOwnedCondition(q, userID))
+}
+
+func GetQuotaAttachmentsForUser(ctx context.Context, userID int64, opts db.ListOptions) (int64, *[]*repo_model.Attachment, error) {
+	var attachments []*repo_model.Attachment
+
+	sess := createQueryFor(ctx, userID, "attachments").
+		OrderBy("`attachment`.size DESC")
+	if opts.PageSize > 0 {
+		sess = sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	count, err := sess.FindAndCount(&attachments)
+	if err != nil {
+		return 0, nil, err
+	}
+
+	return count, &attachments, nil
+}
+
+func GetQuotaPackagesForUser(ctx context.Context, userID int64, opts db.ListOptions) (int64, *[]*package_model.PackageVersion, error) {
+	var pkgs []*package_model.PackageVersion
+
+	sess := createQueryFor(ctx, userID, "packages").
+		OrderBy("`package_blob`.size DESC")
+	if opts.PageSize > 0 {
+		sess = sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	count, err := sess.FindAndCount(&pkgs)
+	if err != nil {
+		return 0, nil, err
+	}
+
+	return count, &pkgs, nil
+}
+
+func GetQuotaArtifactsForUser(ctx context.Context, userID int64, opts db.ListOptions) (int64, *[]*action_model.ActionArtifact, error) {
+	var artifacts []*action_model.ActionArtifact
+
+	sess := createQueryFor(ctx, userID, "artifacts").
+		OrderBy("`action_artifact`.file_compressed_size DESC")
+	if opts.PageSize > 0 {
+		sess = sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	count, err := sess.FindAndCount(&artifacts)
+	if err != nil {
+		return 0, nil, err
+	}
+
+	return count, &artifacts, nil
+}
+
+func GetUsedForUser(ctx context.Context, userID int64) (*Used, error) {
+	var used Used
+
+	_, err := createQueryFor(ctx, userID, "repositories").
+		Where("`repository`.is_private = ?", true).
+		Select("SUM(git_size) AS code").
+		Get(&used.Size.Repos.Private)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "repositories").
+		Where("`repository`.is_private = ?", false).
+		Select("SUM(git_size) AS code").
+		Get(&used.Size.Repos.Public)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "repositories").
+		Select("SUM(lfs_size) AS lfs").
+		Get(&used.Size.Git.LFS)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "attachments").
+		Select("SUM(`attachment`.size) AS size").
+		Where("`attachment`.release_id != 0").
+		Get(&used.Size.Assets.Attachments.Releases)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "attachments").
+		Select("SUM(`attachment`.size) AS size").
+		Where("`attachment`.release_id = 0").
+		Get(&used.Size.Assets.Attachments.Issues)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "artifacts").
+		Select("SUM(file_compressed_size) AS size").
+		Get(&used.Size.Assets.Artifacts)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = createQueryFor(ctx, userID, "packages").
+		Select("SUM(package_blob.size) AS size").
+		Get(&used.Size.Assets.Packages.All)
+	if err != nil {
+		return nil, err
+	}
+
+	return &used, nil
+}
diff --git a/models/repo.go b/models/repo.go
new file mode 100644
index 0000000..0dc8ee5
--- /dev/null
+++ b/models/repo.go
@@ -0,0 +1,362 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	_ "image/jpeg" // Needed for jpeg support
+
+	asymkey_model "code.gitea.io/gitea/models/asymkey"
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+)
+
+// Init initialize model
+func Init(ctx context.Context) error {
+	return unit.LoadUnitConfig()
+}
+
+type repoChecker struct {
+	querySQL   func(ctx context.Context) ([]map[string][]byte, error)
+	correctSQL func(ctx context.Context, id int64) error
+	desc       string
+}
+
+func repoStatsCheck(ctx context.Context, checker *repoChecker) {
+	results, err := checker.querySQL(ctx)
+	if err != nil {
+		log.Error("Select %s: %v", checker.desc, err)
+		return
+	}
+	for _, result := range results {
+		id, _ := strconv.ParseInt(string(result["id"]), 10, 64)
+		select {
+		case <-ctx.Done():
+			log.Warn("CheckRepoStats: Cancelled before checking %s for with id=%d", checker.desc, id)
+			return
+		default:
+		}
+		log.Trace("Updating %s: %d", checker.desc, id)
+		err = checker.correctSQL(ctx, id)
+		if err != nil {
+			log.Error("Update %s[%d]: %v", checker.desc, id, err)
+		}
+	}
+}
+
+func StatsCorrectSQL(ctx context.Context, sql string, id int64) error {
+	_, err := db.GetEngine(ctx).Exec(sql, id, id)
+	return err
+}
+
+func repoStatsCorrectNumWatches(ctx context.Context, id int64) error {
+	return StatsCorrectSQL(ctx, "UPDATE `repository` SET num_watches=(SELECT COUNT(*) FROM `watch` WHERE repo_id=? AND mode<>2) WHERE id=?", id)
+}
+
+func repoStatsCorrectNumStars(ctx context.Context, id int64) error {
+	return StatsCorrectSQL(ctx, "UPDATE `repository` SET num_stars=(SELECT COUNT(*) FROM `star` WHERE repo_id=?) WHERE id=?", id)
+}
+
+func labelStatsCorrectNumIssues(ctx context.Context, id int64) error {
+	return StatsCorrectSQL(ctx, "UPDATE `label` SET num_issues=(SELECT COUNT(*) FROM `issue_label` WHERE label_id=?) WHERE id=?", id)
+}
+
+func labelStatsCorrectNumIssuesRepo(ctx context.Context, id int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `label` SET num_issues=(SELECT COUNT(*) FROM `issue_label` WHERE label_id=id) WHERE repo_id=?", id)
+	return err
+}
+
+func labelStatsCorrectNumClosedIssues(ctx context.Context, id int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `label` SET num_closed_issues=(SELECT COUNT(*) FROM `issue_label`,`issue` WHERE `issue_label`.label_id=`label`.id AND `issue_label`.issue_id=`issue`.id AND `issue`.is_closed=?) WHERE `label`.id=?", true, id)
+	return err
+}
+
+func labelStatsCorrectNumClosedIssuesRepo(ctx context.Context, id int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `label` SET num_closed_issues=(SELECT COUNT(*) FROM `issue_label`,`issue` WHERE `issue_label`.label_id=`label`.id AND `issue_label`.issue_id=`issue`.id AND `issue`.is_closed=?) WHERE `label`.repo_id=?", true, id)
+	return err
+}
+
+var milestoneStatsQueryNumIssues = "SELECT `milestone`.id FROM `milestone` WHERE `milestone`.num_closed_issues!=(SELECT COUNT(*) FROM `issue` WHERE `issue`.milestone_id=`milestone`.id AND `issue`.is_closed=?) OR `milestone`.num_issues!=(SELECT COUNT(*) FROM `issue` WHERE `issue`.milestone_id=`milestone`.id)"
+
+func milestoneStatsCorrectNumIssuesRepo(ctx context.Context, id int64) error {
+	e := db.GetEngine(ctx)
+	results, err := e.Query(milestoneStatsQueryNumIssues+" AND `milestone`.repo_id = ?", true, id)
+	if err != nil {
+		return err
+	}
+	for _, result := range results {
+		id, _ := strconv.ParseInt(string(result["id"]), 10, 64)
+		err = issues_model.UpdateMilestoneCounters(ctx, id)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func userStatsCorrectNumRepos(ctx context.Context, id int64) error {
+	return StatsCorrectSQL(ctx, "UPDATE `user` SET num_repos=(SELECT COUNT(*) FROM `repository` WHERE owner_id=?) WHERE id=?", id)
+}
+
+func repoStatsCorrectIssueNumComments(ctx context.Context, id int64) error {
+	return StatsCorrectSQL(ctx, "UPDATE `issue` SET num_comments=(SELECT COUNT(*) FROM `comment` WHERE issue_id=? AND type=0) WHERE id=?", id)
+}
+
+func repoStatsCorrectNumIssues(ctx context.Context, id int64) error {
+	return repo_model.UpdateRepoIssueNumbers(ctx, id, false, false)
+}
+
+func repoStatsCorrectNumPulls(ctx context.Context, id int64) error {
+	return repo_model.UpdateRepoIssueNumbers(ctx, id, true, false)
+}
+
+func repoStatsCorrectNumClosedIssues(ctx context.Context, id int64) error {
+	return repo_model.UpdateRepoIssueNumbers(ctx, id, false, true)
+}
+
+func repoStatsCorrectNumClosedPulls(ctx context.Context, id int64) error {
+	return repo_model.UpdateRepoIssueNumbers(ctx, id, true, true)
+}
+
+func statsQuery(args ...any) func(context.Context) ([]map[string][]byte, error) {
+	return func(ctx context.Context) ([]map[string][]byte, error) {
+		return db.GetEngine(ctx).Query(args...)
+	}
+}
+
+// CheckRepoStats checks the repository stats
+func CheckRepoStats(ctx context.Context) error {
+	log.Trace("Doing: CheckRepoStats")
+
+	checkers := []*repoChecker{
+		// Repository.NumWatches
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_watches!=(SELECT COUNT(*) FROM `watch` WHERE repo_id=repo.id AND mode<>2)"),
+			repoStatsCorrectNumWatches,
+			"repository count 'num_watches'",
+		},
+		// Repository.NumStars
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_stars!=(SELECT COUNT(*) FROM `star` WHERE repo_id=repo.id)"),
+			repoStatsCorrectNumStars,
+			"repository count 'num_stars'",
+		},
+		// Repository.NumIssues
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_issues!=(SELECT COUNT(*) FROM `issue` WHERE repo_id=repo.id AND is_pull=?)", false),
+			repoStatsCorrectNumIssues,
+			"repository count 'num_issues'",
+		},
+		// Repository.NumClosedIssues
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_closed_issues!=(SELECT COUNT(*) FROM `issue` WHERE repo_id=repo.id AND is_closed=? AND is_pull=?)", true, false),
+			repoStatsCorrectNumClosedIssues,
+			"repository count 'num_closed_issues'",
+		},
+		// Repository.NumPulls
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_pulls!=(SELECT COUNT(*) FROM `issue` WHERE repo_id=repo.id AND is_pull=?)", true),
+			repoStatsCorrectNumPulls,
+			"repository count 'num_pulls'",
+		},
+		// Repository.NumClosedPulls
+		{
+			statsQuery("SELECT repo.id FROM `repository` repo WHERE repo.num_closed_pulls!=(SELECT COUNT(*) FROM `issue` WHERE repo_id=repo.id AND is_closed=? AND is_pull=?)", true, true),
+			repoStatsCorrectNumClosedPulls,
+			"repository count 'num_closed_pulls'",
+		},
+		// Label.NumIssues
+		{
+			statsQuery("SELECT label.id FROM `label` WHERE label.num_issues!=(SELECT COUNT(*) FROM `issue_label` WHERE label_id=label.id)"),
+			labelStatsCorrectNumIssues,
+			"label count 'num_issues'",
+		},
+		// Label.NumClosedIssues
+		{
+			statsQuery("SELECT `label`.id FROM `label` WHERE `label`.num_closed_issues!=(SELECT COUNT(*) FROM `issue_label`,`issue` WHERE `issue_label`.label_id=`label`.id AND `issue_label`.issue_id=`issue`.id AND `issue`.is_closed=?)", true),
+			labelStatsCorrectNumClosedIssues,
+			"label count 'num_closed_issues'",
+		},
+		// Milestone.Num{,Closed}Issues
+		{
+			statsQuery(milestoneStatsQueryNumIssues, true),
+			issues_model.UpdateMilestoneCounters,
+			"milestone count 'num_closed_issues' and 'num_issues'",
+		},
+		// User.NumRepos
+		{
+			statsQuery("SELECT `user`.id FROM `user` WHERE `user`.num_repos!=(SELECT COUNT(*) FROM `repository` WHERE owner_id=`user`.id)"),
+			userStatsCorrectNumRepos,
+			"user count 'num_repos'",
+		},
+		// Issue.NumComments
+		{
+			statsQuery("SELECT `issue`.id FROM `issue` WHERE `issue`.num_comments!=(SELECT COUNT(*) FROM `comment` WHERE issue_id=`issue`.id AND type=0)"),
+			repoStatsCorrectIssueNumComments,
+			"issue count 'num_comments'",
+		},
+	}
+	for _, checker := range checkers {
+		select {
+		case <-ctx.Done():
+			log.Warn("CheckRepoStats: Cancelled before %s", checker.desc)
+			return db.ErrCancelledf("before checking %s", checker.desc)
+		default:
+			repoStatsCheck(ctx, checker)
+		}
+	}
+
+	// FIXME: use checker when stop supporting old fork repo format.
+	// ***** START: Repository.NumForks *****
+	e := db.GetEngine(ctx)
+	results, err := e.Query("SELECT repo.id FROM `repository` repo WHERE repo.num_forks!=(SELECT COUNT(*) FROM `repository` WHERE fork_id=repo.id)")
+	if err != nil {
+		log.Error("Select repository count 'num_forks': %v", err)
+	} else {
+		for _, result := range results {
+			id, _ := strconv.ParseInt(string(result["id"]), 10, 64)
+			select {
+			case <-ctx.Done():
+				log.Warn("CheckRepoStats: Cancelled")
+				return db.ErrCancelledf("during repository count 'num_fork' for repo ID %d", id)
+			default:
+			}
+			log.Trace("Updating repository count 'num_forks': %d", id)
+
+			repo, err := repo_model.GetRepositoryByID(ctx, id)
+			if err != nil {
+				log.Error("repo_model.GetRepositoryByID[%d]: %v", id, err)
+				continue
+			}
+
+			_, err = e.SQL("SELECT COUNT(*) FROM `repository` WHERE fork_id=?", repo.ID).Get(&repo.NumForks)
+			if err != nil {
+				log.Error("Select count of forks[%d]: %v", repo.ID, err)
+				continue
+			}
+
+			if _, err = e.ID(repo.ID).Cols("num_forks").Update(repo); err != nil {
+				log.Error("UpdateRepository[%d]: %v", id, err)
+				continue
+			}
+		}
+	}
+	// ***** END: Repository.NumForks *****
+	return nil
+}
+
+func UpdateRepoStats(ctx context.Context, id int64) error {
+	var err error
+
+	for _, f := range []func(ctx context.Context, id int64) error{
+		repoStatsCorrectNumWatches,
+		repoStatsCorrectNumStars,
+		repoStatsCorrectNumIssues,
+		repoStatsCorrectNumPulls,
+		repoStatsCorrectNumClosedIssues,
+		repoStatsCorrectNumClosedPulls,
+		labelStatsCorrectNumIssuesRepo,
+		labelStatsCorrectNumClosedIssuesRepo,
+		milestoneStatsCorrectNumIssuesRepo,
+	} {
+		err = f(ctx, id)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func updateUserStarNumbers(ctx context.Context, users []user_model.User) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	for _, user := range users {
+		if _, err = db.Exec(ctx, "UPDATE `user` SET num_stars=(SELECT COUNT(*) FROM `star` WHERE uid=?) WHERE id=?", user.ID, user.ID); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
+
+// DoctorUserStarNum recalculate Stars number for all user
+func DoctorUserStarNum(ctx context.Context) (err error) {
+	const batchSize = 100
+
+	for start := 0; ; start += batchSize {
+		users := make([]user_model.User, 0, batchSize)
+		if err = db.GetEngine(ctx).Limit(batchSize, start).Where("type = ?", 0).Cols("id").Find(&users); err != nil {
+			return err
+		}
+		if len(users) == 0 {
+			break
+		}
+
+		if err = updateUserStarNumbers(ctx, users); err != nil {
+			return err
+		}
+	}
+
+	log.Debug("recalculate Stars number for all user finished")
+
+	return err
+}
+
+// DeleteDeployKey delete deploy keys
+func DeleteDeployKey(ctx context.Context, doer *user_model.User, id int64) error {
+	key, err := asymkey_model.GetDeployKeyByID(ctx, id)
+	if err != nil {
+		if asymkey_model.IsErrDeployKeyNotExist(err) {
+			return nil
+		}
+		return fmt.Errorf("GetDeployKeyByID: %w", err)
+	}
+
+	// Check if user has access to delete this key.
+	if !doer.IsAdmin {
+		repo, err := repo_model.GetRepositoryByID(ctx, key.RepoID)
+		if err != nil {
+			return fmt.Errorf("GetRepositoryByID: %w", err)
+		}
+		has, err := access_model.IsUserRepoAdmin(ctx, repo, doer)
+		if err != nil {
+			return fmt.Errorf("GetUserRepoPermission: %w", err)
+		} else if !has {
+			return asymkey_model.ErrKeyAccessDenied{
+				UserID: doer.ID,
+				KeyID:  key.ID,
+				Note:   "deploy",
+			}
+		}
+	}
+
+	if _, err := db.DeleteByID[asymkey_model.DeployKey](ctx, key.ID); err != nil {
+		return fmt.Errorf("delete deploy key [%d]: %w", key.ID, err)
+	}
+
+	// Check if this is the last reference to same key content.
+	has, err := asymkey_model.IsDeployKeyExistByKeyID(ctx, key.KeyID)
+	if err != nil {
+		return err
+	} else if !has {
+		if _, err = db.DeleteByID[asymkey_model.PublicKey](ctx, key.KeyID); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/models/repo/TestSearchRepositoryIDsByCondition/repository.yml b/models/repo/TestSearchRepositoryIDsByCondition/repository.yml
new file mode 100644
index 0000000..9ce8307
--- /dev/null
+++ b/models/repo/TestSearchRepositoryIDsByCondition/repository.yml
@@ -0,0 +1,30 @@
+-
+  id: 1001
+  owner_id: 33
+  owner_name: user33
+  lower_name: repo1001
+  name: repo1001
+  default_branch: main
+  num_watches: 0
+  num_stars: 0
+  num_forks: 0
+  num_issues: 0
+  num_closed_issues: 0
+  num_pulls: 0
+  num_closed_pulls: 0
+  num_milestones: 0
+  num_closed_milestones: 0
+  num_projects: 0
+  num_closed_projects: 0
+  is_private: false
+  is_empty: false
+  is_archived: false
+  is_mirror: false
+  status: 0
+  is_fork: false
+  fork_id: 0
+  is_template: false
+  template_id: 0
+  size: 0
+  is_fsck_enabled: true
+  close_issues_via_commit_in_any_branch: false
diff --git a/models/repo/archive_download_count.go b/models/repo/archive_download_count.go
new file mode 100644
index 0000000..31f0399
--- /dev/null
+++ b/models/repo/archive_download_count.go
@@ -0,0 +1,90 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/git"
+	api "code.gitea.io/gitea/modules/structs"
+)
+
+// RepoArchiveDownloadCount counts all archive downloads for a tag
+type RepoArchiveDownloadCount struct { //nolint:revive
+	ID        int64           `xorm:"pk autoincr"`
+	RepoID    int64           `xorm:"index unique(s)"`
+	ReleaseID int64           `xorm:"index unique(s)"`
+	Type      git.ArchiveType `xorm:"unique(s)"`
+	Count     int64
+}
+
+func init() {
+	db.RegisterModel(new(RepoArchiveDownloadCount))
+}
+
+// CountArchiveDownload adds one download the the given archive
+func CountArchiveDownload(ctx context.Context, repoID, releaseID int64, tp git.ArchiveType) error {
+	updateCount, err := db.GetEngine(ctx).Where("repo_id = ?", repoID).And("release_id = ?", releaseID).And("`type` = ?", tp).Incr("count").Update(new(RepoArchiveDownloadCount))
+	if err != nil {
+		return err
+	}
+
+	if updateCount != 0 {
+		// The count was updated, so we can exit
+		return nil
+	}
+
+	// The archive does not esxists in the database, so let's add it
+	newCounter := &RepoArchiveDownloadCount{
+		RepoID:    repoID,
+		ReleaseID: releaseID,
+		Type:      tp,
+		Count:     1,
+	}
+
+	_, err = db.GetEngine(ctx).Insert(newCounter)
+	return err
+}
+
+// GetArchiveDownloadCount returns the download count of a tag
+func GetArchiveDownloadCount(ctx context.Context, repoID, releaseID int64) (*api.TagArchiveDownloadCount, error) {
+	downloadCountList := make([]RepoArchiveDownloadCount, 0)
+	err := db.GetEngine(ctx).Where("repo_id = ?", repoID).And("release_id = ?", releaseID).Find(&downloadCountList)
+	if err != nil {
+		return nil, err
+	}
+
+	tagCounter := new(api.TagArchiveDownloadCount)
+
+	for _, singleCount := range downloadCountList {
+		switch singleCount.Type {
+		case git.ZIP:
+			tagCounter.Zip = singleCount.Count
+		case git.TARGZ:
+			tagCounter.TarGz = singleCount.Count
+		}
+	}
+
+	return tagCounter, nil
+}
+
+// GetDownloadCountForTagName returns the download count of a tag with the given name
+func GetArchiveDownloadCountForTagName(ctx context.Context, repoID int64, tagName string) (*api.TagArchiveDownloadCount, error) {
+	release, err := GetRelease(ctx, repoID, tagName)
+	if err != nil {
+		if IsErrReleaseNotExist(err) {
+			return new(api.TagArchiveDownloadCount), nil
+		}
+		return nil, err
+	}
+
+	return GetArchiveDownloadCount(ctx, repoID, release.ID)
+}
+
+// DeleteArchiveDownloadCountForRelease deletes the release from the repo_archive_download_count table
+func DeleteArchiveDownloadCountForRelease(ctx context.Context, releaseID int64) error {
+	_, err := db.GetEngine(ctx).Delete(&RepoArchiveDownloadCount{ReleaseID: releaseID})
+	return err
+}
diff --git a/models/repo/archive_download_count_test.go b/models/repo/archive_download_count_test.go
new file mode 100644
index 0000000..ffc6cdf
--- /dev/null
+++ b/models/repo/archive_download_count_test.go
@@ -0,0 +1,65 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/git"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepoArchiveDownloadCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	release, err := repo_model.GetReleaseByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+
+	// We have no count, so it should return 0
+	downloadCount, err := repo_model.GetArchiveDownloadCount(db.DefaultContext, release.RepoID, release.ID)
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), downloadCount.Zip)
+	assert.Equal(t, int64(0), downloadCount.TarGz)
+
+	// Set the TarGz counter to 1
+	err = repo_model.CountArchiveDownload(db.DefaultContext, release.RepoID, release.ID, git.TARGZ)
+	require.NoError(t, err)
+
+	downloadCount, err = repo_model.GetArchiveDownloadCountForTagName(db.DefaultContext, release.RepoID, release.TagName)
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), downloadCount.Zip)
+	assert.Equal(t, int64(1), downloadCount.TarGz)
+
+	// Set the TarGz counter to 2
+	err = repo_model.CountArchiveDownload(db.DefaultContext, release.RepoID, release.ID, git.TARGZ)
+	require.NoError(t, err)
+
+	downloadCount, err = repo_model.GetArchiveDownloadCountForTagName(db.DefaultContext, release.RepoID, release.TagName)
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), downloadCount.Zip)
+	assert.Equal(t, int64(2), downloadCount.TarGz)
+
+	// Set the Zip counter to 1
+	err = repo_model.CountArchiveDownload(db.DefaultContext, release.RepoID, release.ID, git.ZIP)
+	require.NoError(t, err)
+
+	downloadCount, err = repo_model.GetArchiveDownloadCountForTagName(db.DefaultContext, release.RepoID, release.TagName)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), downloadCount.Zip)
+	assert.Equal(t, int64(2), downloadCount.TarGz)
+
+	// Delete the count
+	err = repo_model.DeleteArchiveDownloadCountForRelease(db.DefaultContext, release.ID)
+	require.NoError(t, err)
+
+	downloadCount, err = repo_model.GetArchiveDownloadCountForTagName(db.DefaultContext, release.RepoID, release.TagName)
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), downloadCount.Zip)
+	assert.Equal(t, int64(0), downloadCount.TarGz)
+}
diff --git a/models/repo/archiver.go b/models/repo/archiver.go
new file mode 100644
index 0000000..3f05fcf
--- /dev/null
+++ b/models/repo/archiver.go
@@ -0,0 +1,139 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ArchiverStatus represents repo archive status
+type ArchiverStatus int
+
+// enumerate all repo archive statuses
+const (
+	ArchiverGenerating = iota // the archiver is generating
+	ArchiverReady             // it's ready
+)
+
+// RepoArchiver represents all archivers
+type RepoArchiver struct { //revive:disable-line:exported
+	ID          int64           `xorm:"pk autoincr"`
+	RepoID      int64           `xorm:"index unique(s)"`
+	Type        git.ArchiveType `xorm:"unique(s)"`
+	Status      ArchiverStatus
+	CommitID    string             `xorm:"VARCHAR(64) unique(s)"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX NOT NULL created"`
+	ReleaseID   int64              `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoArchiver))
+}
+
+// RelativePath returns the archive path relative to the archive storage root.
+func (archiver *RepoArchiver) RelativePath() string {
+	return fmt.Sprintf("%d/%s/%s.%s", archiver.RepoID, archiver.CommitID[:2], archiver.CommitID, archiver.Type.String())
+}
+
+// repoArchiverForRelativePath takes a relativePath created from (archiver *RepoArchiver) RelativePath() and creates a shell repoArchiver struct representing it
+func repoArchiverForRelativePath(relativePath string) (*RepoArchiver, error) {
+	parts := strings.SplitN(relativePath, "/", 3)
+	if len(parts) != 3 {
+		return nil, util.SilentWrap{Message: fmt.Sprintf("invalid storage path: %s", relativePath), Err: util.ErrInvalidArgument}
+	}
+	repoID, err := strconv.ParseInt(parts[0], 10, 64)
+	if err != nil {
+		return nil, util.SilentWrap{Message: fmt.Sprintf("invalid storage path: %s", relativePath), Err: util.ErrInvalidArgument}
+	}
+	nameExts := strings.SplitN(parts[2], ".", 2)
+	if len(nameExts) != 2 {
+		return nil, util.SilentWrap{Message: fmt.Sprintf("invalid storage path: %s", relativePath), Err: util.ErrInvalidArgument}
+	}
+
+	return &RepoArchiver{
+		RepoID:   repoID,
+		CommitID: parts[1] + nameExts[0],
+		Type:     git.ToArchiveType(nameExts[1]),
+	}, nil
+}
+
+// GetRepoArchiver get an archiver
+func GetRepoArchiver(ctx context.Context, repoID int64, tp git.ArchiveType, commitID string) (*RepoArchiver, error) {
+	var archiver RepoArchiver
+	has, err := db.GetEngine(ctx).Where("repo_id=?", repoID).And("`type`=?", tp).And("commit_id=?", commitID).Get(&archiver)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return &archiver, nil
+	}
+	return nil, nil
+}
+
+// ExistsRepoArchiverWithStoragePath checks if there is a RepoArchiver for a given storage path
+func ExistsRepoArchiverWithStoragePath(ctx context.Context, storagePath string) (bool, error) {
+	// We need to invert the path provided func (archiver *RepoArchiver) RelativePath() above
+	archiver, err := repoArchiverForRelativePath(storagePath)
+	if err != nil {
+		return false, err
+	}
+
+	return db.GetEngine(ctx).Exist(archiver)
+}
+
+// UpdateRepoArchiverStatus updates archiver's status
+func UpdateRepoArchiverStatus(ctx context.Context, archiver *RepoArchiver) error {
+	_, err := db.GetEngine(ctx).ID(archiver.ID).Cols("status").Update(archiver)
+	return err
+}
+
+// DeleteAllRepoArchives deletes all repo archives records
+func DeleteAllRepoArchives(ctx context.Context) error {
+	// 1=1 to enforce delete all data, otherwise it will delete nothing
+	_, err := db.GetEngine(ctx).Where("1=1").Delete(new(RepoArchiver))
+	return err
+}
+
+// FindRepoArchiversOption represents an archiver options
+type FindRepoArchiversOption struct {
+	db.ListOptions
+	OlderThan time.Duration
+}
+
+func (opts FindRepoArchiversOption) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.OlderThan > 0 {
+		cond = cond.And(builder.Lt{"created_unix": time.Now().Add(-opts.OlderThan).Unix()})
+	}
+	return cond
+}
+
+func (opts FindRepoArchiversOption) ToOrders() string {
+	return "created_unix ASC"
+}
+
+// SetArchiveRepoState sets if a repo is archived
+func SetArchiveRepoState(ctx context.Context, repo *Repository, isArchived bool) (err error) {
+	repo.IsArchived = isArchived
+
+	if isArchived {
+		repo.ArchivedUnix = timeutil.TimeStampNow()
+	} else {
+		repo.ArchivedUnix = timeutil.TimeStamp(0)
+	}
+
+	_, err = db.GetEngine(ctx).ID(repo.ID).Cols("is_archived", "archived_unix").NoAutoTime().Update(repo)
+	return err
+}
diff --git a/models/repo/attachment.go b/models/repo/attachment.go
new file mode 100644
index 0000000..128bceb
--- /dev/null
+++ b/models/repo/attachment.go
@@ -0,0 +1,287 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"path"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/storage"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+// Attachment represent a attachment of issue/comment/release.
+type Attachment struct {
+	ID                int64  `xorm:"pk autoincr"`
+	UUID              string `xorm:"uuid UNIQUE"`
+	RepoID            int64  `xorm:"INDEX"`           // this should not be zero
+	IssueID           int64  `xorm:"INDEX"`           // maybe zero when creating
+	ReleaseID         int64  `xorm:"INDEX"`           // maybe zero when creating
+	UploaderID        int64  `xorm:"INDEX DEFAULT 0"` // Notice: will be zero before this column added
+	CommentID         int64  `xorm:"INDEX"`
+	Name              string
+	DownloadCount     int64              `xorm:"DEFAULT 0"`
+	Size              int64              `xorm:"DEFAULT 0"`
+	NoAutoTime        bool               `xorm:"-"`
+	CreatedUnix       timeutil.TimeStamp `xorm:"created"`
+	CustomDownloadURL string             `xorm:"-"`
+	ExternalURL       string
+}
+
+func init() {
+	db.RegisterModel(new(Attachment))
+}
+
+// IncreaseDownloadCount is update download count + 1
+func (a *Attachment) IncreaseDownloadCount(ctx context.Context) error {
+	// Update download count.
+	if _, err := db.GetEngine(ctx).Exec("UPDATE `attachment` SET download_count=download_count+1 WHERE id=?", a.ID); err != nil {
+		return fmt.Errorf("increase attachment count: %w", err)
+	}
+
+	return nil
+}
+
+// AttachmentRelativePath returns the relative path
+func AttachmentRelativePath(uuid string) string {
+	return path.Join(uuid[0:1], uuid[1:2], uuid)
+}
+
+// RelativePath returns the relative path of the attachment
+func (a *Attachment) RelativePath() string {
+	return AttachmentRelativePath(a.UUID)
+}
+
+// DownloadURL returns the download url of the attached file
+func (a *Attachment) DownloadURL() string {
+	if a.ExternalURL != "" {
+		return a.ExternalURL
+	}
+
+	if a.CustomDownloadURL != "" {
+		return a.CustomDownloadURL
+	}
+
+	return setting.AppURL + "attachments/" + url.PathEscape(a.UUID)
+}
+
+// ErrAttachmentNotExist represents a "AttachmentNotExist" kind of error.
+type ErrAttachmentNotExist struct {
+	ID   int64
+	UUID string
+}
+
+// IsErrAttachmentNotExist checks if an error is a ErrAttachmentNotExist.
+func IsErrAttachmentNotExist(err error) bool {
+	_, ok := err.(ErrAttachmentNotExist)
+	return ok
+}
+
+func (err ErrAttachmentNotExist) Error() string {
+	return fmt.Sprintf("attachment does not exist [id: %d, uuid: %s]", err.ID, err.UUID)
+}
+
+func (err ErrAttachmentNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+type ErrInvalidExternalURL struct {
+	ExternalURL string
+}
+
+func IsErrInvalidExternalURL(err error) bool {
+	_, ok := err.(ErrInvalidExternalURL)
+	return ok
+}
+
+func (err ErrInvalidExternalURL) Error() string {
+	return fmt.Sprintf("invalid external URL: '%s'", err.ExternalURL)
+}
+
+func (err ErrInvalidExternalURL) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// GetAttachmentByID returns attachment by given id
+func GetAttachmentByID(ctx context.Context, id int64) (*Attachment, error) {
+	attach := &Attachment{}
+	if has, err := db.GetEngine(ctx).ID(id).Get(attach); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrAttachmentNotExist{ID: id, UUID: ""}
+	}
+	return attach, nil
+}
+
+// GetAttachmentByUUID returns attachment by given UUID.
+func GetAttachmentByUUID(ctx context.Context, uuid string) (*Attachment, error) {
+	attach := &Attachment{}
+	has, err := db.GetEngine(ctx).Where("uuid=?", uuid).Get(attach)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrAttachmentNotExist{0, uuid}
+	}
+	return attach, nil
+}
+
+// GetAttachmentsByUUIDs returns attachment by given UUID list.
+func GetAttachmentsByUUIDs(ctx context.Context, uuids []string) ([]*Attachment, error) {
+	if len(uuids) == 0 {
+		return []*Attachment{}, nil
+	}
+
+	// Silently drop invalid uuids.
+	attachments := make([]*Attachment, 0, len(uuids))
+	return attachments, db.GetEngine(ctx).In("uuid", uuids).Find(&attachments)
+}
+
+// ExistAttachmentsByUUID returns true if attachment exists with the given UUID
+func ExistAttachmentsByUUID(ctx context.Context, uuid string) (bool, error) {
+	return db.GetEngine(ctx).Where("`uuid`=?", uuid).Exist(new(Attachment))
+}
+
+// GetAttachmentsByIssueID returns all attachments of an issue.
+func GetAttachmentsByIssueID(ctx context.Context, issueID int64) ([]*Attachment, error) {
+	attachments := make([]*Attachment, 0, 10)
+	return attachments, db.GetEngine(ctx).Where("issue_id = ? AND comment_id = 0", issueID).Find(&attachments)
+}
+
+// GetAttachmentsByIssueIDImagesLatest returns the latest image attachments of an issue.
+func GetAttachmentsByIssueIDImagesLatest(ctx context.Context, issueID int64) ([]*Attachment, error) {
+	attachments := make([]*Attachment, 0, 5)
+	return attachments, db.GetEngine(ctx).Where(`issue_id = ? AND (name like '%.apng'
+		OR name like '%.avif'
+		OR name like '%.bmp'
+		OR name like '%.gif'
+		OR name like '%.jpg'
+		OR name like '%.jpeg'
+		OR name like '%.jxl'
+		OR name like '%.png'
+		OR name like '%.svg'
+		OR name like '%.webp')`, issueID).Desc("comment_id").Limit(5).Find(&attachments)
+}
+
+// GetAttachmentsByCommentID returns all attachments if comment by given ID.
+func GetAttachmentsByCommentID(ctx context.Context, commentID int64) ([]*Attachment, error) {
+	attachments := make([]*Attachment, 0, 10)
+	return attachments, db.GetEngine(ctx).Where("comment_id=?", commentID).Find(&attachments)
+}
+
+// GetAttachmentByReleaseIDFileName returns attachment by given releaseId and fileName.
+func GetAttachmentByReleaseIDFileName(ctx context.Context, releaseID int64, fileName string) (*Attachment, error) {
+	attach := &Attachment{ReleaseID: releaseID, Name: fileName}
+	has, err := db.GetEngine(ctx).Get(attach)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, err
+	}
+	return attach, nil
+}
+
+// DeleteAttachment deletes the given attachment and optionally the associated file.
+func DeleteAttachment(ctx context.Context, a *Attachment, remove bool) error {
+	_, err := DeleteAttachments(ctx, []*Attachment{a}, remove)
+	return err
+}
+
+// DeleteAttachments deletes the given attachments and optionally the associated files.
+func DeleteAttachments(ctx context.Context, attachments []*Attachment, remove bool) (int, error) {
+	if len(attachments) == 0 {
+		return 0, nil
+	}
+
+	ids := make([]int64, 0, len(attachments))
+	for _, a := range attachments {
+		ids = append(ids, a.ID)
+	}
+
+	cnt, err := db.GetEngine(ctx).In("id", ids).NoAutoCondition().Delete(attachments[0])
+	if err != nil {
+		return 0, err
+	}
+
+	if remove {
+		for i, a := range attachments {
+			if err := storage.Attachments.Delete(a.RelativePath()); err != nil {
+				return i, err
+			}
+		}
+	}
+	return int(cnt), nil
+}
+
+// DeleteAttachmentsByIssue deletes all attachments associated with the given issue.
+func DeleteAttachmentsByIssue(ctx context.Context, issueID int64, remove bool) (int, error) {
+	attachments, err := GetAttachmentsByIssueID(ctx, issueID)
+	if err != nil {
+		return 0, err
+	}
+
+	return DeleteAttachments(ctx, attachments, remove)
+}
+
+// DeleteAttachmentsByComment deletes all attachments associated with the given comment.
+func DeleteAttachmentsByComment(ctx context.Context, commentID int64, remove bool) (int, error) {
+	attachments, err := GetAttachmentsByCommentID(ctx, commentID)
+	if err != nil {
+		return 0, err
+	}
+
+	return DeleteAttachments(ctx, attachments, remove)
+}
+
+// UpdateAttachmentByUUID Updates attachment via uuid
+func UpdateAttachmentByUUID(ctx context.Context, attach *Attachment, cols ...string) error {
+	if attach.UUID == "" {
+		return fmt.Errorf("attachment uuid should be not blank")
+	}
+	if attach.ExternalURL != "" && !validation.IsValidExternalURL(attach.ExternalURL) {
+		return ErrInvalidExternalURL{ExternalURL: attach.ExternalURL}
+	}
+	_, err := db.GetEngine(ctx).Where("uuid=?", attach.UUID).Cols(cols...).Update(attach)
+	return err
+}
+
+// UpdateAttachment updates the given attachment in database
+func UpdateAttachment(ctx context.Context, atta *Attachment) error {
+	if atta.ExternalURL != "" && !validation.IsValidExternalURL(atta.ExternalURL) {
+		return ErrInvalidExternalURL{ExternalURL: atta.ExternalURL}
+	}
+	sess := db.GetEngine(ctx).Cols("name", "issue_id", "release_id", "comment_id", "download_count")
+	if atta.ID != 0 && atta.UUID == "" {
+		sess = sess.ID(atta.ID)
+	} else {
+		// Use uuid only if id is not set and uuid is set
+		sess = sess.Where("uuid = ?", atta.UUID)
+	}
+	_, err := sess.Update(atta)
+	return err
+}
+
+// DeleteAttachmentsByRelease deletes all attachments associated with the given release.
+func DeleteAttachmentsByRelease(ctx context.Context, releaseID int64) error {
+	_, err := db.GetEngine(ctx).Where("release_id = ?", releaseID).Delete(&Attachment{})
+	return err
+}
+
+// CountOrphanedAttachments returns the number of bad attachments
+func CountOrphanedAttachments(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where("(issue_id > 0 and issue_id not in (select id from issue)) or (release_id > 0 and release_id not in (select id from `release`))").
+		Count(new(Attachment))
+}
+
+// DeleteOrphanedAttachments delete all bad attachments
+func DeleteOrphanedAttachments(ctx context.Context) error {
+	_, err := db.GetEngine(ctx).Where("(issue_id > 0 and issue_id not in (select id from issue)) or (release_id > 0 and release_id not in (select id from `release`))").
+		Delete(new(Attachment))
+	return err
+}
diff --git a/models/repo/attachment_test.go b/models/repo/attachment_test.go
new file mode 100644
index 0000000..23945ba
--- /dev/null
+++ b/models/repo/attachment_test.go
@@ -0,0 +1,105 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIncreaseDownloadCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	attachment, err := repo_model.GetAttachmentByUUID(db.DefaultContext, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11")
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), attachment.DownloadCount)
+
+	// increase download count
+	err = attachment.IncreaseDownloadCount(db.DefaultContext)
+	require.NoError(t, err)
+
+	attachment, err = repo_model.GetAttachmentByUUID(db.DefaultContext, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11")
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), attachment.DownloadCount)
+}
+
+func TestGetByCommentOrIssueID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// count of attachments from issue ID
+	attachments, err := repo_model.GetAttachmentsByIssueID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Len(t, attachments, 1)
+
+	attachments, err = repo_model.GetAttachmentsByCommentID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Len(t, attachments, 2)
+}
+
+func TestDeleteAttachments(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := repo_model.DeleteAttachmentsByIssue(db.DefaultContext, 4, false)
+	require.NoError(t, err)
+	assert.Equal(t, 2, count)
+
+	count, err = repo_model.DeleteAttachmentsByComment(db.DefaultContext, 2, false)
+	require.NoError(t, err)
+	assert.Equal(t, 2, count)
+
+	err = repo_model.DeleteAttachment(db.DefaultContext, &repo_model.Attachment{ID: 8}, false)
+	require.NoError(t, err)
+
+	attachment, err := repo_model.GetAttachmentByUUID(db.DefaultContext, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a18")
+	require.Error(t, err)
+	assert.True(t, repo_model.IsErrAttachmentNotExist(err))
+	assert.Nil(t, attachment)
+}
+
+func TestGetAttachmentByID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	attach, err := repo_model.GetAttachmentByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", attach.UUID)
+}
+
+func TestAttachment_DownloadURL(t *testing.T) {
+	attach := &repo_model.Attachment{
+		UUID: "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11",
+		ID:   1,
+	}
+	assert.Equal(t, "https://try.gitea.io/attachments/a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", attach.DownloadURL())
+}
+
+func TestUpdateAttachment(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	attach, err := repo_model.GetAttachmentByID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.Equal(t, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", attach.UUID)
+
+	attach.Name = "new_name"
+	require.NoError(t, repo_model.UpdateAttachment(db.DefaultContext, attach))
+
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{Name: "new_name"})
+}
+
+func TestGetAttachmentsByUUIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	attachList, err := repo_model.GetAttachmentsByUUIDs(db.DefaultContext, []string{"a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a17", "not-existing-uuid"})
+	require.NoError(t, err)
+	assert.Len(t, attachList, 2)
+	assert.Equal(t, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a11", attachList[0].UUID)
+	assert.Equal(t, "a0eebc99-9c0b-4ef8-bb6d-6bb9bd380a17", attachList[1].UUID)
+	assert.Equal(t, int64(1), attachList[0].IssueID)
+	assert.Equal(t, int64(5), attachList[1].IssueID)
+}
diff --git a/models/repo/avatar.go b/models/repo/avatar.go
new file mode 100644
index 0000000..72ee938
--- /dev/null
+++ b/models/repo/avatar.go
@@ -0,0 +1,96 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"image/png"
+	"io"
+	"net/url"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/avatar"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/storage"
+)
+
+// CustomAvatarRelativePath returns repository custom avatar file path.
+func (repo *Repository) CustomAvatarRelativePath() string {
+	return repo.Avatar
+}
+
+// ExistsWithAvatarAtStoragePath returns true if there is a user with this Avatar
+func ExistsWithAvatarAtStoragePath(ctx context.Context, storagePath string) (bool, error) {
+	// See func (repo *Repository) CustomAvatarRelativePath()
+	// repo.Avatar is used directly as the storage path - therefore we can check for existence directly using the path
+	return db.GetEngine(ctx).Where("`avatar`=?", storagePath).Exist(new(Repository))
+}
+
+// RelAvatarLink returns a relative link to the repository's avatar.
+func (repo *Repository) RelAvatarLink(ctx context.Context) string {
+	return repo.relAvatarLink(ctx)
+}
+
+// generateRandomAvatar generates a random avatar for repository.
+func generateRandomAvatar(ctx context.Context, repo *Repository) error {
+	idToString := fmt.Sprintf("%d", repo.ID)
+
+	seed := idToString
+	img, err := avatar.RandomImage([]byte(seed))
+	if err != nil {
+		return fmt.Errorf("RandomImage: %w", err)
+	}
+
+	repo.Avatar = idToString
+
+	if err := storage.SaveFrom(storage.RepoAvatars, repo.CustomAvatarRelativePath(), func(w io.Writer) error {
+		if err := png.Encode(w, img); err != nil {
+			log.Error("Encode: %v", err)
+		}
+		return err
+	}); err != nil {
+		return fmt.Errorf("Failed to create dir %s: %w", repo.CustomAvatarRelativePath(), err)
+	}
+
+	log.Info("New random avatar created for repository: %d", repo.ID)
+
+	if _, err := db.GetEngine(ctx).ID(repo.ID).Cols("avatar").NoAutoTime().Update(repo); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (repo *Repository) relAvatarLink(ctx context.Context) string {
+	// If no avatar - path is empty
+	avatarPath := repo.CustomAvatarRelativePath()
+	if len(avatarPath) == 0 {
+		switch mode := setting.RepoAvatar.Fallback; mode {
+		case "image":
+			return setting.RepoAvatar.FallbackImage
+		case "random":
+			if err := generateRandomAvatar(ctx, repo); err != nil {
+				log.Error("generateRandomAvatar: %v", err)
+			}
+		default:
+			// default behaviour: do not display avatar
+			return ""
+		}
+	}
+	return setting.AppSubURL + "/repo-avatars/" + url.PathEscape(repo.Avatar)
+}
+
+// AvatarLink returns a link to the repository's avatar.
+func (repo *Repository) AvatarLink(ctx context.Context) string {
+	link := repo.relAvatarLink(ctx)
+	// we only prepend our AppURL to our known (relative, internal) avatar link to get an absolute URL
+	if strings.HasPrefix(link, "/") && !strings.HasPrefix(link, "//") {
+		return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
+	}
+	// otherwise, return the link as it is
+	return link
+}
diff --git a/models/repo/collaboration.go b/models/repo/collaboration.go
new file mode 100644
index 0000000..cb66cb5
--- /dev/null
+++ b/models/repo/collaboration.go
@@ -0,0 +1,170 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+// Collaboration represent the relation between an individual and a repository.
+type Collaboration struct {
+	ID          int64              `xorm:"pk autoincr"`
+	RepoID      int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	UserID      int64              `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	Mode        perm.AccessMode    `xorm:"DEFAULT 2 NOT NULL"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(Collaboration))
+}
+
+// Collaborator represents a user with collaboration details.
+type Collaborator struct {
+	*user_model.User
+	Collaboration *Collaboration
+}
+
+// GetCollaborators returns the collaborators for a repository
+func GetCollaborators(ctx context.Context, repoID int64, listOptions db.ListOptions) ([]*Collaborator, error) {
+	collaborations, err := db.Find[Collaboration](ctx, FindCollaborationOptions{
+		ListOptions: listOptions,
+		RepoID:      repoID,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("db.Find[Collaboration]: %w", err)
+	}
+
+	collaborators := make([]*Collaborator, 0, len(collaborations))
+	userIDs := make([]int64, 0, len(collaborations))
+	for _, c := range collaborations {
+		userIDs = append(userIDs, c.UserID)
+	}
+
+	usersMap := make(map[int64]*user_model.User)
+	if err := db.GetEngine(ctx).In("id", userIDs).Find(&usersMap); err != nil {
+		return nil, fmt.Errorf("Find users map by user ids: %w", err)
+	}
+
+	for _, c := range collaborations {
+		u := usersMap[c.UserID]
+		if u == nil {
+			u = user_model.NewGhostUser()
+		}
+		collaborators = append(collaborators, &Collaborator{
+			User:          u,
+			Collaboration: c,
+		})
+	}
+	return collaborators, nil
+}
+
+// GetCollaboration get collaboration for a repository id with a user id
+func GetCollaboration(ctx context.Context, repoID, uid int64) (*Collaboration, error) {
+	collaboration := &Collaboration{
+		RepoID: repoID,
+		UserID: uid,
+	}
+	has, err := db.GetEngine(ctx).Get(collaboration)
+	if !has {
+		collaboration = nil
+	}
+	return collaboration, err
+}
+
+// IsCollaborator check if a user is a collaborator of a repository
+func IsCollaborator(ctx context.Context, repoID, userID int64) (bool, error) {
+	return db.GetEngine(ctx).Get(&Collaboration{RepoID: repoID, UserID: userID})
+}
+
+type FindCollaborationOptions struct {
+	db.ListOptions
+	RepoID int64
+}
+
+func (opts FindCollaborationOptions) ToConds() builder.Cond {
+	return builder.And(builder.Eq{"repo_id": opts.RepoID})
+}
+
+// ChangeCollaborationAccessMode sets new access mode for the collaboration.
+func ChangeCollaborationAccessMode(ctx context.Context, repo *Repository, uid int64, mode perm.AccessMode) error {
+	// Discard invalid input
+	if mode <= perm.AccessModeNone || mode > perm.AccessModeOwner {
+		return nil
+	}
+
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		e := db.GetEngine(ctx)
+
+		collaboration := &Collaboration{
+			RepoID: repo.ID,
+			UserID: uid,
+		}
+		has, err := e.Get(collaboration)
+		if err != nil {
+			return fmt.Errorf("get collaboration: %w", err)
+		} else if !has {
+			return nil
+		}
+
+		if collaboration.Mode == mode {
+			return nil
+		}
+		collaboration.Mode = mode
+
+		if _, err = e.
+			ID(collaboration.ID).
+			Cols("mode").
+			Update(collaboration); err != nil {
+			return fmt.Errorf("update collaboration: %w", err)
+		} else if _, err = e.Exec("UPDATE access SET mode = ? WHERE user_id = ? AND repo_id = ?", mode, uid, repo.ID); err != nil {
+			return fmt.Errorf("update access table: %w", err)
+		}
+
+		return nil
+	})
+}
+
+// GetCollaboratorWithUser returns all collaborator IDs of collabUserID on
+// repositories of ownerID.
+func GetCollaboratorWithUser(ctx context.Context, ownerID, collabUserID int64) ([]int64, error) {
+	collabsID := make([]int64, 0, 8)
+	err := db.GetEngine(ctx).Table("collaboration").Select("collaboration.`id`").
+		Join("INNER", "repository", "repository.id = collaboration.repo_id").
+		Where("repository.`owner_id` = ?", ownerID).
+		And("collaboration.`user_id` = ?", collabUserID).
+		Find(&collabsID)
+
+	return collabsID, err
+}
+
+// IsOwnerMemberCollaborator checks if a provided user is the owner, a collaborator or a member of a team in a repository
+func IsOwnerMemberCollaborator(ctx context.Context, repo *Repository, userID int64) (bool, error) {
+	if repo.OwnerID == userID {
+		return true, nil
+	}
+	teamMember, err := db.GetEngine(ctx).Join("INNER", "team_repo", "team_repo.team_id = team_user.team_id").
+		Join("INNER", "team_unit", "team_unit.team_id = team_user.team_id").
+		Where("team_repo.repo_id = ?", repo.ID).
+		And("team_unit.`type` = ?", unit.TypeCode).
+		And("team_user.uid = ?", userID).Table("team_user").Exist()
+	if err != nil {
+		return false, err
+	}
+	if teamMember {
+		return true, nil
+	}
+
+	return db.GetEngine(ctx).Get(&Collaboration{RepoID: repo.ID, UserID: userID})
+}
diff --git a/models/repo/collaboration_test.go b/models/repo/collaboration_test.go
new file mode 100644
index 0000000..5adedfe
--- /dev/null
+++ b/models/repo/collaboration_test.go
@@ -0,0 +1,186 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	access_model "code.gitea.io/gitea/models/perm/access"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepository_GetCollaborators(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	test := func(repoID int64) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		collaborators, err := repo_model.GetCollaborators(db.DefaultContext, repo.ID, db.ListOptions{})
+		require.NoError(t, err)
+		expectedLen, err := db.GetEngine(db.DefaultContext).Count(&repo_model.Collaboration{RepoID: repoID})
+		require.NoError(t, err)
+		assert.Len(t, collaborators, int(expectedLen))
+		for _, collaborator := range collaborators {
+			assert.EqualValues(t, collaborator.User.ID, collaborator.Collaboration.UserID)
+			assert.EqualValues(t, repoID, collaborator.Collaboration.RepoID)
+		}
+	}
+	test(1)
+	test(2)
+	test(3)
+	test(4)
+
+	// Test db.ListOptions
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 22})
+
+	collaborators1, err := repo_model.GetCollaborators(db.DefaultContext, repo.ID, db.ListOptions{PageSize: 1, Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, collaborators1, 1)
+
+	collaborators2, err := repo_model.GetCollaborators(db.DefaultContext, repo.ID, db.ListOptions{PageSize: 1, Page: 2})
+	require.NoError(t, err)
+	assert.Len(t, collaborators2, 1)
+
+	assert.NotEqualValues(t, collaborators1[0].ID, collaborators2[0].ID)
+}
+
+func TestRepository_IsCollaborator(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	test := func(repoID, userID int64, expected bool) {
+		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: repoID})
+		actual, err := repo_model.IsCollaborator(db.DefaultContext, repo.ID, userID)
+		require.NoError(t, err)
+		assert.Equal(t, expected, actual)
+	}
+	test(3, 2, true)
+	test(3, unittest.NonexistentID, false)
+	test(4, 2, false)
+	test(4, 4, true)
+}
+
+func TestRepository_ChangeCollaborationAccessMode(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	require.NoError(t, repo_model.ChangeCollaborationAccessMode(db.DefaultContext, repo, 4, perm.AccessModeAdmin))
+
+	collaboration := unittest.AssertExistsAndLoadBean(t, &repo_model.Collaboration{RepoID: repo.ID, UserID: 4})
+	assert.EqualValues(t, perm.AccessModeAdmin, collaboration.Mode)
+
+	access := unittest.AssertExistsAndLoadBean(t, &access_model.Access{UserID: 4, RepoID: repo.ID})
+	assert.EqualValues(t, perm.AccessModeAdmin, access.Mode)
+
+	require.NoError(t, repo_model.ChangeCollaborationAccessMode(db.DefaultContext, repo, 4, perm.AccessModeAdmin))
+
+	require.NoError(t, repo_model.ChangeCollaborationAccessMode(db.DefaultContext, repo, unittest.NonexistentID, perm.AccessModeAdmin))
+
+	// Disvard invalid input.
+	require.NoError(t, repo_model.ChangeCollaborationAccessMode(db.DefaultContext, repo, 4, perm.AccessMode(unittest.NonexistentID)))
+
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: repo.ID})
+}
+
+func TestRepository_CountCollaborators(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	count, err := db.Count[repo_model.Collaboration](db.DefaultContext, repo_model.FindCollaborationOptions{
+		RepoID: repo1.ID,
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 2, count)
+
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 22})
+	count, err = db.Count[repo_model.Collaboration](db.DefaultContext, repo_model.FindCollaborationOptions{
+		RepoID: repo2.ID,
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 2, count)
+
+	// Non-existent repository.
+	count, err = db.Count[repo_model.Collaboration](db.DefaultContext, repo_model.FindCollaborationOptions{
+		RepoID: unittest.NonexistentID,
+	})
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+}
+
+func TestRepository_IsOwnerMemberCollaborator(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+
+	// Organisation owner.
+	actual, err := repo_model.IsOwnerMemberCollaborator(db.DefaultContext, repo1, 2)
+	require.NoError(t, err)
+	assert.True(t, actual)
+
+	// Team member.
+	actual, err = repo_model.IsOwnerMemberCollaborator(db.DefaultContext, repo1, 4)
+	require.NoError(t, err)
+	assert.True(t, actual)
+
+	// Normal user.
+	actual, err = repo_model.IsOwnerMemberCollaborator(db.DefaultContext, repo1, 1)
+	require.NoError(t, err)
+	assert.False(t, actual)
+
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+
+	// Collaborator.
+	actual, err = repo_model.IsOwnerMemberCollaborator(db.DefaultContext, repo2, 4)
+	require.NoError(t, err)
+	assert.True(t, actual)
+
+	repo3 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 15})
+
+	// Repository owner.
+	actual, err = repo_model.IsOwnerMemberCollaborator(db.DefaultContext, repo3, 2)
+	require.NoError(t, err)
+	assert.True(t, actual)
+}
+
+func TestRepo_GetCollaboration(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+
+	// Existing collaboration.
+	collab, err := repo_model.GetCollaboration(db.DefaultContext, repo.ID, 4)
+	require.NoError(t, err)
+	assert.NotNil(t, collab)
+	assert.EqualValues(t, 4, collab.UserID)
+	assert.EqualValues(t, 4, collab.RepoID)
+
+	// Non-existing collaboration.
+	collab, err = repo_model.GetCollaboration(db.DefaultContext, repo.ID, 1)
+	require.NoError(t, err)
+	assert.Nil(t, collab)
+}
+
+func TestGetCollaboratorWithUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user16 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 16})
+	user15 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 15})
+	user18 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 18})
+
+	collabs, err := repo_model.GetCollaboratorWithUser(db.DefaultContext, user16.ID, user15.ID)
+	require.NoError(t, err)
+	assert.Len(t, collabs, 2)
+	assert.EqualValues(t, 5, collabs[0])
+	assert.EqualValues(t, 7, collabs[1])
+
+	collabs, err = repo_model.GetCollaboratorWithUser(db.DefaultContext, user16.ID, user18.ID)
+	require.NoError(t, err)
+	assert.Len(t, collabs, 2)
+	assert.EqualValues(t, 6, collabs[0])
+	assert.EqualValues(t, 8, collabs[1])
+}
diff --git a/models/repo/following_repo.go b/models/repo/following_repo.go
new file mode 100644
index 0000000..85b96aa
--- /dev/null
+++ b/models/repo/following_repo.go
@@ -0,0 +1,39 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"code.gitea.io/gitea/modules/validation"
+)
+
+// FollowingRepo represents a federated Repository Actor connected with a local Repo
+type FollowingRepo struct {
+	ID               int64  `xorm:"pk autoincr"`
+	RepoID           int64  `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	ExternalID       string `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	FederationHostID int64  `xorm:"UNIQUE(federation_repo_mapping) NOT NULL"`
+	URI              string
+}
+
+func NewFollowingRepo(repoID int64, externalID string, federationHostID int64, uri string) (FollowingRepo, error) {
+	result := FollowingRepo{
+		RepoID:           repoID,
+		ExternalID:       externalID,
+		FederationHostID: federationHostID,
+		URI:              uri,
+	}
+	if valid, err := validation.IsValid(result); !valid {
+		return FollowingRepo{}, err
+	}
+	return result, nil
+}
+
+func (user FollowingRepo) Validate() []string {
+	var result []string
+	result = append(result, validation.ValidateNotEmpty(user.RepoID, "UserID")...)
+	result = append(result, validation.ValidateNotEmpty(user.ExternalID, "ExternalID")...)
+	result = append(result, validation.ValidateNotEmpty(user.FederationHostID, "FederationHostID")...)
+	result = append(result, validation.ValidateNotEmpty(user.URI, "Uri")...)
+	return result
+}
diff --git a/models/repo/following_repo_test.go b/models/repo/following_repo_test.go
new file mode 100644
index 0000000..d0dd0a3
--- /dev/null
+++ b/models/repo/following_repo_test.go
@@ -0,0 +1,31 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func Test_FollowingRepoValidation(t *testing.T) {
+	sut := FollowingRepo{
+		RepoID:           12,
+		ExternalID:       "12",
+		FederationHostID: 1,
+		URI:              "http://localhost:3000/api/v1/activitypub/repo-id/1",
+	}
+	if res, err := validation.IsValid(sut); !res {
+		t.Errorf("sut should be valid but was %q", err)
+	}
+
+	sut = FollowingRepo{
+		ExternalID:       "12",
+		FederationHostID: 1,
+		URI:              "http://localhost:3000/api/v1/activitypub/repo-id/1",
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid")
+	}
+}
diff --git a/models/repo/fork.go b/models/repo/fork.go
new file mode 100644
index 0000000..632e91c
--- /dev/null
+++ b/models/repo/fork.go
@@ -0,0 +1,120 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"xorm.io/builder"
+)
+
+// GetRepositoriesByForkID returns all repositories with given fork ID.
+func GetRepositoriesByForkID(ctx context.Context, forkID int64) ([]*Repository, error) {
+	repos := make([]*Repository, 0, 10)
+	return repos, db.GetEngine(ctx).
+		Where("fork_id=?", forkID).
+		Find(&repos)
+}
+
+// GetForkedRepo checks if given user has already forked a repository with given ID.
+func GetForkedRepo(ctx context.Context, ownerID, repoID int64) *Repository {
+	repo := new(Repository)
+	has, _ := db.GetEngine(ctx).
+		Where("owner_id=? AND fork_id=?", ownerID, repoID).
+		Get(repo)
+	if has {
+		return repo
+	}
+	return nil
+}
+
+// HasForkedRepo checks if given user has already forked a repository with given ID.
+func HasForkedRepo(ctx context.Context, ownerID, repoID int64) bool {
+	has, _ := db.GetEngine(ctx).
+		Table("repository").
+		Where("owner_id=? AND fork_id=?", ownerID, repoID).
+		Exist()
+	return has
+}
+
+// GetUserFork return user forked repository from this repository, if not forked return nil
+func GetUserFork(ctx context.Context, repoID, userID int64) (*Repository, error) {
+	var forkedRepo Repository
+	has, err := db.GetEngine(ctx).Where("fork_id = ?", repoID).And("owner_id = ?", userID).Get(&forkedRepo)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, nil
+	}
+	return &forkedRepo, nil
+}
+
+// GetForks returns all the forks of the repository that are visible to the user.
+func GetForks(ctx context.Context, repo *Repository, user *user_model.User, listOptions db.ListOptions) ([]*Repository, int64, error) {
+	sess := db.GetEngine(ctx).Where(AccessibleRepositoryCondition(user, unit.TypeInvalid))
+
+	var forks []*Repository
+	if listOptions.Page == 0 {
+		forks = make([]*Repository, 0, repo.NumForks)
+	} else {
+		forks = make([]*Repository, 0, listOptions.PageSize)
+		sess = db.SetSessionPagination(sess, &listOptions)
+	}
+
+	count, err := sess.FindAndCount(&forks, &Repository{ForkID: repo.ID})
+	return forks, count, err
+}
+
+// IncrementRepoForkNum increment repository fork number
+func IncrementRepoForkNum(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `repository` SET num_forks=num_forks+1 WHERE id=?", repoID)
+	return err
+}
+
+// DecrementRepoForkNum decrement repository fork number
+func DecrementRepoForkNum(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `repository` SET num_forks=num_forks-1 WHERE id=?", repoID)
+	return err
+}
+
+// FindUserOrgForks returns the forked repositories for one user from a repository
+func FindUserOrgForks(ctx context.Context, repoID, userID int64) ([]*Repository, error) {
+	cond := builder.And(
+		builder.Eq{"fork_id": repoID},
+		builder.In("owner_id",
+			builder.Select("org_id").
+				From("org_user").
+				Where(builder.Eq{"uid": userID}),
+		),
+	)
+
+	var repos []*Repository
+	return repos, db.GetEngine(ctx).Table("repository").Where(cond).Find(&repos)
+}
+
+// GetForksByUserAndOrgs return forked repos of the user and owned orgs
+func GetForksByUserAndOrgs(ctx context.Context, user *user_model.User, repo *Repository) ([]*Repository, error) {
+	var repoList []*Repository
+	if user == nil {
+		return repoList, nil
+	}
+	forkedRepo, err := GetUserFork(ctx, repo.ID, user.ID)
+	if err != nil {
+		return repoList, err
+	}
+	if forkedRepo != nil {
+		repoList = append(repoList, forkedRepo)
+	}
+	orgForks, err := FindUserOrgForks(ctx, repo.ID, user.ID)
+	if err != nil {
+		return nil, err
+	}
+	repoList = append(repoList, orgForks...)
+	return repoList, nil
+}
diff --git a/models/repo/fork_test.go b/models/repo/fork_test.go
new file mode 100644
index 0000000..dd12429
--- /dev/null
+++ b/models/repo/fork_test.go
@@ -0,0 +1,34 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetUserFork(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// User13 has repo 11 forked from repo10
+	repo, err := repo_model.GetRepositoryByID(db.DefaultContext, 10)
+	require.NoError(t, err)
+	assert.NotNil(t, repo)
+	repo, err = repo_model.GetUserFork(db.DefaultContext, repo.ID, 13)
+	require.NoError(t, err)
+	assert.NotNil(t, repo)
+
+	repo, err = repo_model.GetRepositoryByID(db.DefaultContext, 9)
+	require.NoError(t, err)
+	assert.NotNil(t, repo)
+	repo, err = repo_model.GetUserFork(db.DefaultContext, repo.ID, 13)
+	require.NoError(t, err)
+	assert.Nil(t, repo)
+}
diff --git a/models/repo/git.go b/models/repo/git.go
new file mode 100644
index 0000000..388bf86
--- /dev/null
+++ b/models/repo/git.go
@@ -0,0 +1,36 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+// MergeStyle represents the approach to merge commits into base branch.
+type MergeStyle string
+
+const (
+	// MergeStyleMerge create merge commit
+	MergeStyleMerge MergeStyle = "merge"
+	// MergeStyleRebase rebase before merging, and fast-forward
+	MergeStyleRebase MergeStyle = "rebase"
+	// MergeStyleRebaseMerge rebase before merging with merge commit (--no-ff)
+	MergeStyleRebaseMerge MergeStyle = "rebase-merge"
+	// MergeStyleSquash squash commits into single commit before merging
+	MergeStyleSquash MergeStyle = "squash"
+	// MergeStyleFastForwardOnly fast-forward merge if possible, otherwise fail
+	MergeStyleFastForwardOnly MergeStyle = "fast-forward-only"
+	// MergeStyleManuallyMerged pr has been merged manually, just mark it as merged directly
+	MergeStyleManuallyMerged MergeStyle = "manually-merged"
+	// MergeStyleRebaseUpdate not a merge style, used to update pull head by rebase
+	MergeStyleRebaseUpdate MergeStyle = "rebase-update-only"
+)
+
+// UpdateDefaultBranch updates the default branch
+func UpdateDefaultBranch(ctx context.Context, repo *Repository) error {
+	_, err := db.GetEngine(ctx).ID(repo.ID).Cols("default_branch").Update(repo)
+	return err
+}
diff --git a/models/repo/issue.go b/models/repo/issue.go
new file mode 100644
index 0000000..0dd4fd5
--- /dev/null
+++ b/models/repo/issue.go
@@ -0,0 +1,60 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// ___________.__             ___________                     __
+// \__    ___/|__| _____   ___\__    ___/___________    ____ |  | __ ___________
+// |    |   |  |/     \_/ __ \|    |  \_  __ \__  \ _/ ___\|  |/ // __ \_  __ \
+// |    |   |  |  Y Y  \  ___/|    |   |  | \// __ \\  \___|    <\  ___/|  | \/
+// |____|   |__|__|_|  /\___  >____|   |__|  (____  /\___  >__|_ \\___  >__|
+// \/     \/                    \/     \/     \/    \/
+
+// CanEnableTimetracker returns true when the server admin enabled time tracking
+// This overrules IsTimetrackerEnabled
+func (repo *Repository) CanEnableTimetracker() bool {
+	return setting.Service.EnableTimetracking
+}
+
+// IsTimetrackerEnabled returns whether or not the timetracker is enabled. It returns the default value from config if an error occurs.
+func (repo *Repository) IsTimetrackerEnabled(ctx context.Context) bool {
+	if !setting.Service.EnableTimetracking {
+		return false
+	}
+
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(ctx, unit.TypeIssues); err != nil {
+		return setting.Service.DefaultEnableTimetracking
+	}
+	return u.IssuesConfig().EnableTimetracker
+}
+
+// AllowOnlyContributorsToTrackTime returns value of IssuesConfig or the default value
+func (repo *Repository) AllowOnlyContributorsToTrackTime(ctx context.Context) bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(ctx, unit.TypeIssues); err != nil {
+		return setting.Service.DefaultAllowOnlyContributorsToTrackTime
+	}
+	return u.IssuesConfig().AllowOnlyContributorsToTrackTime
+}
+
+// IsDependenciesEnabled returns if dependencies are enabled and returns the default setting if not set.
+func (repo *Repository) IsDependenciesEnabled(ctx context.Context) bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(ctx, unit.TypeIssues); err != nil {
+		log.Trace("IsDependenciesEnabled: %v", err)
+		return setting.Service.DefaultEnableDependencies
+	}
+	return u.IssuesConfig().EnableDependencies
+}
diff --git a/models/repo/language_stats.go b/models/repo/language_stats.go
new file mode 100644
index 0000000..0bc0f1f
--- /dev/null
+++ b/models/repo/language_stats.go
@@ -0,0 +1,242 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"math"
+	"sort"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/go-enry/go-enry/v2"
+)
+
+// LanguageStat describes language statistics of a repository
+type LanguageStat struct {
+	ID          int64 `xorm:"pk autoincr"`
+	RepoID      int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	CommitID    string
+	IsPrimary   bool
+	Language    string             `xorm:"VARCHAR(50) UNIQUE(s) INDEX NOT NULL"`
+	Percentage  float32            `xorm:"-"`
+	Size        int64              `xorm:"NOT NULL DEFAULT 0"`
+	Color       string             `xorm:"-"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX CREATED"`
+}
+
+func init() {
+	db.RegisterModel(new(LanguageStat))
+}
+
+// LanguageStatList defines a list of language statistics
+type LanguageStatList []*LanguageStat
+
+// LoadAttributes loads attributes
+func (stats LanguageStatList) LoadAttributes() {
+	for i := range stats {
+		stats[i].Color = enry.GetColor(stats[i].Language)
+	}
+}
+
+func (stats LanguageStatList) getLanguagePercentages() map[string]float32 {
+	langPerc := make(map[string]float32)
+	var otherPerc float32
+	var total int64
+
+	for _, stat := range stats {
+		total += stat.Size
+	}
+	if total > 0 {
+		for _, stat := range stats {
+			perc := float32(float64(stat.Size) / float64(total) * 100)
+			if perc <= 0.1 {
+				otherPerc += perc
+				continue
+			}
+			langPerc[stat.Language] = perc
+		}
+	}
+	if otherPerc > 0 {
+		langPerc["other"] = otherPerc
+	}
+	roundByLargestRemainder(langPerc, 100)
+	return langPerc
+}
+
+// Rounds to 1 decimal point, target should be the expected sum of percs
+func roundByLargestRemainder(percs map[string]float32, target float32) {
+	leftToDistribute := int(target * 10)
+
+	keys := make([]string, 0, len(percs))
+
+	for k, v := range percs {
+		percs[k] = v * 10
+		floored := math.Floor(float64(percs[k]))
+		leftToDistribute -= int(floored)
+		keys = append(keys, k)
+	}
+
+	// Sort the keys by the largest remainder
+	sort.SliceStable(keys, func(i, j int) bool {
+		_, remainderI := math.Modf(float64(percs[keys[i]]))
+		_, remainderJ := math.Modf(float64(percs[keys[j]]))
+		return remainderI > remainderJ
+	})
+
+	// Increment the values in order of largest remainder
+	for _, k := range keys {
+		percs[k] = float32(math.Floor(float64(percs[k])))
+		if leftToDistribute > 0 {
+			percs[k]++
+			leftToDistribute--
+		}
+		percs[k] /= 10
+	}
+}
+
+// GetLanguageStats returns the language statistics for a repository
+func GetLanguageStats(ctx context.Context, repo *Repository) (LanguageStatList, error) {
+	stats := make(LanguageStatList, 0, 6)
+	if err := db.GetEngine(ctx).Where("`repo_id` = ?", repo.ID).Desc("`size`").Find(&stats); err != nil {
+		return nil, err
+	}
+	return stats, nil
+}
+
+// GetTopLanguageStats returns the top language statistics for a repository
+func GetTopLanguageStats(ctx context.Context, repo *Repository, limit int) (LanguageStatList, error) {
+	stats, err := GetLanguageStats(ctx, repo)
+	if err != nil {
+		return nil, err
+	}
+	perc := stats.getLanguagePercentages()
+	topstats := make(LanguageStatList, 0, limit)
+	var other float32
+	for i := range stats {
+		if _, ok := perc[stats[i].Language]; !ok {
+			continue
+		}
+		if stats[i].Language == "other" || len(topstats) >= limit {
+			other += perc[stats[i].Language]
+			continue
+		}
+		stats[i].Percentage = perc[stats[i].Language]
+		topstats = append(topstats, stats[i])
+	}
+	if other > 0 {
+		topstats = append(topstats, &LanguageStat{
+			RepoID:     repo.ID,
+			Language:   "other",
+			Color:      "#cccccc",
+			Percentage: float32(math.Round(float64(other)*10) / 10),
+		})
+	}
+	topstats.LoadAttributes()
+	return topstats, nil
+}
+
+// UpdateLanguageStats updates the language statistics for repository
+func UpdateLanguageStats(ctx context.Context, repo *Repository, commitID string, stats map[string]int64) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	oldstats, err := GetLanguageStats(ctx, repo)
+	if err != nil {
+		return err
+	}
+	var topLang string
+	var s int64
+	for lang, size := range stats {
+		if size > s {
+			s = size
+			topLang = strings.ToLower(lang)
+		}
+	}
+
+	for lang, size := range stats {
+		upd := false
+		llang := strings.ToLower(lang)
+		for _, s := range oldstats {
+			// Update already existing language
+			if strings.ToLower(s.Language) == llang {
+				s.CommitID = commitID
+				s.IsPrimary = llang == topLang
+				s.Size = size
+				if _, err := sess.ID(s.ID).Cols("`commit_id`", "`size`", "`is_primary`").Update(s); err != nil {
+					return err
+				}
+				upd = true
+				break
+			}
+		}
+		// Insert new language
+		if !upd {
+			if err := db.Insert(ctx, &LanguageStat{
+				RepoID:    repo.ID,
+				CommitID:  commitID,
+				IsPrimary: llang == topLang,
+				Language:  lang,
+				Size:      size,
+			}); err != nil {
+				return err
+			}
+		}
+	}
+	// Delete old languages
+	statsToDelete := make([]int64, 0, len(oldstats))
+	for _, s := range oldstats {
+		if s.CommitID != commitID {
+			statsToDelete = append(statsToDelete, s.ID)
+		}
+	}
+	if len(statsToDelete) > 0 {
+		if _, err := sess.In("`id`", statsToDelete).Delete(&LanguageStat{}); err != nil {
+			return err
+		}
+	}
+
+	// Update indexer status
+	if err = UpdateIndexerStatus(ctx, repo, RepoIndexerTypeStats, commitID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// CopyLanguageStat Copy originalRepo language stat information to destRepo (use for forked repo)
+func CopyLanguageStat(ctx context.Context, originalRepo, destRepo *Repository) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	RepoLang := make(LanguageStatList, 0, 6)
+	if err := db.GetEngine(ctx).Where("`repo_id` = ?", originalRepo.ID).Desc("`size`").Find(&RepoLang); err != nil {
+		return err
+	}
+	if len(RepoLang) > 0 {
+		for i := range RepoLang {
+			RepoLang[i].ID = 0
+			RepoLang[i].RepoID = destRepo.ID
+			RepoLang[i].CreatedUnix = timeutil.TimeStampNow()
+		}
+		// update destRepo's indexer status
+		tmpCommitID := RepoLang[0].CommitID
+		if err := UpdateIndexerStatus(ctx, destRepo, RepoIndexerTypeStats, tmpCommitID); err != nil {
+			return err
+		}
+		if err := db.Insert(ctx, &RepoLang); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
diff --git a/models/repo/main_test.go b/models/repo/main_test.go
new file mode 100644
index 0000000..b49855f
--- /dev/null
+++ b/models/repo/main_test.go
@@ -0,0 +1,21 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models" // register table model
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/perm/access" // register table model
+	_ "code.gitea.io/gitea/models/repo"        // register table model
+	_ "code.gitea.io/gitea/models/user"        // register table model
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/repo/mirror.go b/models/repo/mirror.go
new file mode 100644
index 0000000..be7b785
--- /dev/null
+++ b/models/repo/mirror.go
@@ -0,0 +1,123 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrMirrorNotExist mirror does not exist error
+var ErrMirrorNotExist = util.NewNotExistErrorf("Mirror does not exist")
+
+// Mirror represents mirror information of a repository.
+type Mirror struct {
+	ID          int64       `xorm:"pk autoincr"`
+	RepoID      int64       `xorm:"INDEX"`
+	Repo        *Repository `xorm:"-"`
+	Interval    time.Duration
+	EnablePrune bool `xorm:"NOT NULL DEFAULT true"`
+
+	UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX"`
+	NextUpdateUnix timeutil.TimeStamp `xorm:"INDEX"`
+
+	LFS         bool   `xorm:"lfs_enabled NOT NULL DEFAULT false"`
+	LFSEndpoint string `xorm:"lfs_endpoint TEXT"`
+
+	RemoteAddress string `xorm:"VARCHAR(2048)"`
+}
+
+func init() {
+	db.RegisterModel(new(Mirror))
+}
+
+// BeforeInsert will be invoked by XORM before inserting a record
+func (m *Mirror) BeforeInsert() {
+	if m != nil {
+		m.UpdatedUnix = timeutil.TimeStampNow()
+		m.NextUpdateUnix = timeutil.TimeStampNow()
+	}
+}
+
+// GetRepository returns the repository.
+func (m *Mirror) GetRepository(ctx context.Context) *Repository {
+	if m.Repo != nil {
+		return m.Repo
+	}
+	var err error
+	m.Repo, err = GetRepositoryByID(ctx, m.RepoID)
+	if err != nil {
+		log.Error("getRepositoryByID[%d]: %v", m.ID, err)
+	}
+	return m.Repo
+}
+
+// GetRemoteName returns the name of the remote.
+func (m *Mirror) GetRemoteName() string {
+	return "origin"
+}
+
+// ScheduleNextUpdate calculates and sets next update time.
+func (m *Mirror) ScheduleNextUpdate() {
+	if m.Interval != 0 {
+		m.NextUpdateUnix = timeutil.TimeStampNow().AddDuration(m.Interval)
+	} else {
+		m.NextUpdateUnix = 0
+	}
+}
+
+// GetMirrorByRepoID returns mirror information of a repository.
+func GetMirrorByRepoID(ctx context.Context, repoID int64) (*Mirror, error) {
+	m := &Mirror{RepoID: repoID}
+	has, err := db.GetEngine(ctx).Get(m)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrMirrorNotExist
+	}
+	return m, nil
+}
+
+// UpdateMirror updates the mirror
+func UpdateMirror(ctx context.Context, m *Mirror) error {
+	_, err := db.GetEngine(ctx).ID(m.ID).AllCols().Update(m)
+	return err
+}
+
+// TouchMirror updates the mirror updatedUnix
+func TouchMirror(ctx context.Context, m *Mirror) error {
+	m.UpdatedUnix = timeutil.TimeStampNow()
+	_, err := db.GetEngine(ctx).ID(m.ID).Cols("updated_unix").Update(m)
+	return err
+}
+
+// DeleteMirrorByRepoID deletes a mirror by repoID
+func DeleteMirrorByRepoID(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Delete(&Mirror{RepoID: repoID})
+	return err
+}
+
+// MirrorsIterate iterates all mirror repositories.
+func MirrorsIterate(ctx context.Context, limit int, f func(idx int, bean any) error) error {
+	sess := db.GetEngine(ctx).
+		Where("next_update_unix<=?", time.Now().Unix()).
+		And("next_update_unix!=0").
+		OrderBy("updated_unix ASC")
+	if limit > 0 {
+		sess = sess.Limit(limit)
+	}
+	return sess.Iterate(new(Mirror), f)
+}
+
+// InsertMirror inserts a mirror to database
+func InsertMirror(ctx context.Context, mirror *Mirror) error {
+	_, err := db.GetEngine(ctx).Insert(mirror)
+	return err
+}
diff --git a/models/repo/pushmirror.go b/models/repo/pushmirror.go
new file mode 100644
index 0000000..68fb504
--- /dev/null
+++ b/models/repo/pushmirror.go
@@ -0,0 +1,188 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/git"
+	giturl "code.gitea.io/gitea/modules/git/url"
+	"code.gitea.io/gitea/modules/keying"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrPushMirrorNotExist mirror does not exist error
+var ErrPushMirrorNotExist = util.NewNotExistErrorf("PushMirror does not exist")
+
+// PushMirror represents mirror information of a repository.
+type PushMirror struct {
+	ID            int64       `xorm:"pk autoincr"`
+	RepoID        int64       `xorm:"INDEX"`
+	Repo          *Repository `xorm:"-"`
+	RemoteName    string
+	RemoteAddress string `xorm:"VARCHAR(2048)"`
+
+	// A keypair formatted in OpenSSH format.
+	PublicKey  string `xorm:"VARCHAR(100)"`
+	PrivateKey []byte `xorm:"BLOB"`
+
+	SyncOnCommit   bool `xorm:"NOT NULL DEFAULT true"`
+	Interval       time.Duration
+	CreatedUnix    timeutil.TimeStamp `xorm:"created"`
+	LastUpdateUnix timeutil.TimeStamp `xorm:"INDEX last_update"`
+	LastError      string             `xorm:"text"`
+}
+
+type PushMirrorOptions struct {
+	db.ListOptions
+	ID         int64
+	RepoID     int64
+	RemoteName string
+}
+
+func (opts PushMirrorOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	}
+	if opts.RemoteName != "" {
+		cond = cond.And(builder.Eq{"remote_name": opts.RemoteName})
+	}
+	if opts.ID > 0 {
+		cond = cond.And(builder.Eq{"id": opts.ID})
+	}
+	return cond
+}
+
+func init() {
+	db.RegisterModel(new(PushMirror))
+}
+
+// GetRepository returns the path of the repository.
+func (m *PushMirror) GetRepository(ctx context.Context) *Repository {
+	if m.Repo != nil {
+		return m.Repo
+	}
+	var err error
+	m.Repo, err = GetRepositoryByID(ctx, m.RepoID)
+	if err != nil {
+		log.Error("getRepositoryByID[%d]: %v", m.ID, err)
+	}
+	return m.Repo
+}
+
+// GetRemoteName returns the name of the remote.
+func (m *PushMirror) GetRemoteName() string {
+	return m.RemoteName
+}
+
+// GetPublicKey returns a sanitized version of the public key.
+// This should only be used when displaying the public key to the user, not for actual code.
+func (m *PushMirror) GetPublicKey() string {
+	return strings.TrimSuffix(m.PublicKey, "\n")
+}
+
+// SetPrivatekey encrypts the given private key and store it in the database.
+// The ID of the push mirror must be known, so this should be done after the
+// push mirror is inserted.
+func (m *PushMirror) SetPrivatekey(ctx context.Context, privateKey []byte) error {
+	key := keying.DeriveKey(keying.ContextPushMirror)
+	m.PrivateKey = key.Encrypt(privateKey, keying.ColumnAndID("private_key", m.ID))
+
+	_, err := db.GetEngine(ctx).ID(m.ID).Cols("private_key").Update(m)
+	return err
+}
+
+// Privatekey retrieves the encrypted private key and decrypts it.
+func (m *PushMirror) Privatekey() ([]byte, error) {
+	key := keying.DeriveKey(keying.ContextPushMirror)
+	return key.Decrypt(m.PrivateKey, keying.ColumnAndID("private_key", m.ID))
+}
+
+// UpdatePushMirror updates the push-mirror
+func UpdatePushMirror(ctx context.Context, m *PushMirror) error {
+	_, err := db.GetEngine(ctx).ID(m.ID).AllCols().Update(m)
+	return err
+}
+
+// UpdatePushMirrorInterval updates the push-mirror
+func UpdatePushMirrorInterval(ctx context.Context, m *PushMirror) error {
+	_, err := db.GetEngine(ctx).ID(m.ID).Cols("interval").Update(m)
+	return err
+}
+
+var DeletePushMirrors = deletePushMirrors
+
+func deletePushMirrors(ctx context.Context, opts PushMirrorOptions) error {
+	if opts.RepoID > 0 {
+		_, err := db.Delete[PushMirror](ctx, opts)
+		return err
+	}
+	return util.NewInvalidArgumentErrorf("repoID required and must be set")
+}
+
+// GetPushMirrorsByRepoID returns push-mirror information of a repository.
+func GetPushMirrorsByRepoID(ctx context.Context, repoID int64, listOptions db.ListOptions) ([]*PushMirror, int64, error) {
+	sess := db.GetEngine(ctx).Where("repo_id = ?", repoID)
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+		mirrors := make([]*PushMirror, 0, listOptions.PageSize)
+		count, err := sess.FindAndCount(&mirrors)
+		return mirrors, count, err
+	}
+	mirrors := make([]*PushMirror, 0, 10)
+	count, err := sess.FindAndCount(&mirrors)
+	return mirrors, count, err
+}
+
+// GetPushMirrorsSyncedOnCommit returns push-mirrors for this repo that should be updated by new commits
+func GetPushMirrorsSyncedOnCommit(ctx context.Context, repoID int64) ([]*PushMirror, error) {
+	mirrors := make([]*PushMirror, 0, 10)
+	return mirrors, db.GetEngine(ctx).
+		Where("repo_id = ? AND sync_on_commit = ?", repoID, true).
+		Find(&mirrors)
+}
+
+// PushMirrorsIterate iterates all push-mirror repositories.
+func PushMirrorsIterate(ctx context.Context, limit int, f func(idx int, bean any) error) error {
+	sess := db.GetEngine(ctx).
+		Table("push_mirror").
+		Join("INNER", "`repository`", "`repository`.id = `push_mirror`.repo_id").
+		Where("`push_mirror`.last_update + (`push_mirror`.`interval` / ?) <= ?", time.Second, time.Now().Unix()).
+		And("`push_mirror`.`interval` != 0").
+		And("`repository`.is_archived = ?", false).
+		OrderBy("last_update ASC")
+	if limit > 0 {
+		sess = sess.Limit(limit)
+	}
+	return sess.Iterate(new(PushMirror), f)
+}
+
+// GetPushMirrorRemoteAddress returns the address of associated with a repository's given remote.
+func GetPushMirrorRemoteAddress(ownerName, repoName, remoteName string) (string, error) {
+	repoPath := filepath.Join(setting.RepoRootPath, strings.ToLower(ownerName), strings.ToLower(repoName)+".git")
+
+	remoteURL, err := git.GetRemoteAddress(context.Background(), repoPath, remoteName)
+	if err != nil {
+		return "", fmt.Errorf("get remote %s's address of %s/%s failed: %v", remoteName, ownerName, repoName, err)
+	}
+
+	u, err := giturl.Parse(remoteURL)
+	if err != nil {
+		return "", err
+	}
+	u.User = nil
+
+	return u.String(), nil
+}
diff --git a/models/repo/pushmirror_test.go b/models/repo/pushmirror_test.go
new file mode 100644
index 0000000..c3368cc
--- /dev/null
+++ b/models/repo/pushmirror_test.go
@@ -0,0 +1,79 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPushMirrorsIterate(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	now := timeutil.TimeStampNow()
+
+	db.Insert(db.DefaultContext, &repo_model.PushMirror{
+		RemoteName:     "test-1",
+		LastUpdateUnix: now,
+		Interval:       1,
+	})
+
+	long, _ := time.ParseDuration("24h")
+	db.Insert(db.DefaultContext, &repo_model.PushMirror{
+		RemoteName:     "test-2",
+		LastUpdateUnix: now,
+		Interval:       long,
+	})
+
+	db.Insert(db.DefaultContext, &repo_model.PushMirror{
+		RemoteName:     "test-3",
+		LastUpdateUnix: now,
+		Interval:       0,
+	})
+
+	time.Sleep(1 * time.Millisecond)
+
+	repo_model.PushMirrorsIterate(db.DefaultContext, 1, func(idx int, bean any) error {
+		m, ok := bean.(*repo_model.PushMirror)
+		assert.True(t, ok)
+		assert.Equal(t, "test-1", m.RemoteName)
+		assert.Equal(t, m.RemoteName, m.GetRemoteName())
+		return nil
+	})
+}
+
+func TestPushMirrorPrivatekey(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	m := &repo_model.PushMirror{
+		RemoteName: "test-privatekey",
+	}
+	require.NoError(t, db.Insert(db.DefaultContext, m))
+
+	privateKey := []byte{0x00, 0x01, 0x02, 0x04, 0x08, 0x10}
+	t.Run("Set privatekey", func(t *testing.T) {
+		require.NoError(t, m.SetPrivatekey(db.DefaultContext, privateKey))
+	})
+
+	t.Run("Normal retrieval", func(t *testing.T) {
+		actualPrivateKey, err := m.Privatekey()
+		require.NoError(t, err)
+		assert.EqualValues(t, privateKey, actualPrivateKey)
+	})
+
+	t.Run("Incorrect retrieval", func(t *testing.T) {
+		m.ID++
+		actualPrivateKey, err := m.Privatekey()
+		require.Error(t, err)
+		assert.Empty(t, actualPrivateKey)
+	})
+}
diff --git a/models/repo/redirect.go b/models/repo/redirect.go
new file mode 100644
index 0000000..61789eb
--- /dev/null
+++ b/models/repo/redirect.go
@@ -0,0 +1,86 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrRedirectNotExist represents a "RedirectNotExist" kind of error.
+type ErrRedirectNotExist struct {
+	OwnerID  int64
+	RepoName string
+}
+
+// IsErrRedirectNotExist check if an error is an ErrRepoRedirectNotExist.
+func IsErrRedirectNotExist(err error) bool {
+	_, ok := err.(ErrRedirectNotExist)
+	return ok
+}
+
+func (err ErrRedirectNotExist) Error() string {
+	return fmt.Sprintf("repository redirect does not exist [uid: %d, name: %s]", err.OwnerID, err.RepoName)
+}
+
+func (err ErrRedirectNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Redirect represents that a repo name should be redirected to another
+type Redirect struct {
+	ID             int64  `xorm:"pk autoincr"`
+	OwnerID        int64  `xorm:"UNIQUE(s)"`
+	LowerName      string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	RedirectRepoID int64  // repoID to redirect to
+}
+
+// TableName represents real table name in database
+func (Redirect) TableName() string {
+	return "repo_redirect"
+}
+
+func init() {
+	db.RegisterModel(new(Redirect))
+}
+
+// LookupRedirect look up if a repository has a redirect name
+func LookupRedirect(ctx context.Context, ownerID int64, repoName string) (int64, error) {
+	repoName = strings.ToLower(repoName)
+	redirect := &Redirect{OwnerID: ownerID, LowerName: repoName}
+	if has, err := db.GetEngine(ctx).Get(redirect); err != nil {
+		return 0, err
+	} else if !has {
+		return 0, ErrRedirectNotExist{OwnerID: ownerID, RepoName: repoName}
+	}
+	return redirect.RedirectRepoID, nil
+}
+
+// NewRedirect create a new repo redirect
+func NewRedirect(ctx context.Context, ownerID, repoID int64, oldRepoName, newRepoName string) error {
+	oldRepoName = strings.ToLower(oldRepoName)
+	newRepoName = strings.ToLower(newRepoName)
+
+	if err := DeleteRedirect(ctx, ownerID, newRepoName); err != nil {
+		return err
+	}
+
+	return db.Insert(ctx, &Redirect{
+		OwnerID:        ownerID,
+		LowerName:      oldRepoName,
+		RedirectRepoID: repoID,
+	})
+}
+
+// DeleteRedirect delete any redirect from the specified repo name to
+// anything else
+func DeleteRedirect(ctx context.Context, ownerID int64, repoName string) error {
+	repoName = strings.ToLower(repoName)
+	_, err := db.GetEngine(ctx).Delete(&Redirect{OwnerID: ownerID, LowerName: repoName})
+	return err
+}
diff --git a/models/repo/redirect_test.go b/models/repo/redirect_test.go
new file mode 100644
index 0000000..2016784
--- /dev/null
+++ b/models/repo/redirect_test.go
@@ -0,0 +1,78 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLookupRedirect(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repoID, err := repo_model.LookupRedirect(db.DefaultContext, 2, "oldrepo1")
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, repoID)
+
+	_, err = repo_model.LookupRedirect(db.DefaultContext, unittest.NonexistentID, "doesnotexist")
+	assert.True(t, repo_model.IsErrRedirectNotExist(err))
+}
+
+func TestNewRedirect(t *testing.T) {
+	// redirect to a completely new name
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	require.NoError(t, repo_model.NewRedirect(db.DefaultContext, repo.OwnerID, repo.ID, repo.Name, "newreponame"))
+
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Redirect{
+		OwnerID:        repo.OwnerID,
+		LowerName:      repo.LowerName,
+		RedirectRepoID: repo.ID,
+	})
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Redirect{
+		OwnerID:        repo.OwnerID,
+		LowerName:      "oldrepo1",
+		RedirectRepoID: repo.ID,
+	})
+}
+
+func TestNewRedirect2(t *testing.T) {
+	// redirect to previously used name
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	require.NoError(t, repo_model.NewRedirect(db.DefaultContext, repo.OwnerID, repo.ID, repo.Name, "oldrepo1"))
+
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Redirect{
+		OwnerID:        repo.OwnerID,
+		LowerName:      repo.LowerName,
+		RedirectRepoID: repo.ID,
+	})
+	unittest.AssertNotExistsBean(t, &repo_model.Redirect{
+		OwnerID:        repo.OwnerID,
+		LowerName:      "oldrepo1",
+		RedirectRepoID: repo.ID,
+	})
+}
+
+func TestNewRedirect3(t *testing.T) {
+	// redirect for a previously-unredirected repo
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	require.NoError(t, repo_model.NewRedirect(db.DefaultContext, repo.OwnerID, repo.ID, repo.Name, "newreponame"))
+
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Redirect{
+		OwnerID:        repo.OwnerID,
+		LowerName:      repo.LowerName,
+		RedirectRepoID: repo.ID,
+	})
+}
diff --git a/models/repo/release.go b/models/repo/release.go
new file mode 100644
index 0000000..e2cd7d7
--- /dev/null
+++ b/models/repo/release.go
@@ -0,0 +1,566 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrReleaseAlreadyExist represents a "ReleaseAlreadyExist" kind of error.
+type ErrReleaseAlreadyExist struct {
+	TagName string
+}
+
+// IsErrReleaseAlreadyExist checks if an error is a ErrReleaseAlreadyExist.
+func IsErrReleaseAlreadyExist(err error) bool {
+	_, ok := err.(ErrReleaseAlreadyExist)
+	return ok
+}
+
+func (err ErrReleaseAlreadyExist) Error() string {
+	return fmt.Sprintf("release tag already exist [tag_name: %s]", err.TagName)
+}
+
+func (err ErrReleaseAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrReleaseNotExist represents a "ReleaseNotExist" kind of error.
+type ErrReleaseNotExist struct {
+	ID      int64
+	TagName string
+}
+
+// IsErrReleaseNotExist checks if an error is a ErrReleaseNotExist.
+func IsErrReleaseNotExist(err error) bool {
+	_, ok := err.(ErrReleaseNotExist)
+	return ok
+}
+
+func (err ErrReleaseNotExist) Error() string {
+	return fmt.Sprintf("release tag does not exist [id: %d, tag_name: %s]", err.ID, err.TagName)
+}
+
+func (err ErrReleaseNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Release represents a release of repository.
+type Release struct {
+	ID                   int64            `xorm:"pk autoincr"`
+	RepoID               int64            `xorm:"INDEX UNIQUE(n)"`
+	Repo                 *Repository      `xorm:"-"`
+	PublisherID          int64            `xorm:"INDEX"`
+	Publisher            *user_model.User `xorm:"-"`
+	TagName              string           `xorm:"INDEX UNIQUE(n)"`
+	OriginalAuthor       string
+	OriginalAuthorID     int64 `xorm:"index"`
+	LowerTagName         string
+	Target               string
+	TargetBehind         string `xorm:"-"` // to handle non-existing or empty target
+	Title                string
+	Sha1                 string `xorm:"VARCHAR(64)"`
+	HideArchiveLinks     bool   `xorm:"NOT NULL DEFAULT false"`
+	NumCommits           int64
+	NumCommitsBehind     int64                            `xorm:"-"`
+	Note                 string                           `xorm:"TEXT"`
+	RenderedNote         template.HTML                    `xorm:"-"`
+	IsDraft              bool                             `xorm:"NOT NULL DEFAULT false"`
+	IsPrerelease         bool                             `xorm:"NOT NULL DEFAULT false"`
+	IsTag                bool                             `xorm:"NOT NULL DEFAULT false"` // will be true only if the record is a tag and has no related releases
+	Attachments          []*Attachment                    `xorm:"-"`
+	CreatedUnix          timeutil.TimeStamp               `xorm:"INDEX"`
+	ArchiveDownloadCount *structs.TagArchiveDownloadCount `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(Release))
+}
+
+// LoadAttributes load repo and publisher attributes for a release
+func (r *Release) LoadAttributes(ctx context.Context) error {
+	var err error
+	if r.Repo == nil {
+		r.Repo, err = GetRepositoryByID(ctx, r.RepoID)
+		if err != nil {
+			return err
+		}
+	}
+	if r.Publisher == nil {
+		r.Publisher, err = user_model.GetUserByID(ctx, r.PublisherID)
+		if err != nil {
+			if user_model.IsErrUserNotExist(err) {
+				r.Publisher = user_model.NewGhostUser()
+			} else {
+				return err
+			}
+		}
+	}
+
+	err = r.LoadArchiveDownloadCount(ctx)
+	if err != nil {
+		return err
+	}
+
+	return GetReleaseAttachments(ctx, r)
+}
+
+// LoadArchiveDownloadCount loads the download count for the source archives
+func (r *Release) LoadArchiveDownloadCount(ctx context.Context) error {
+	var err error
+	r.ArchiveDownloadCount, err = GetArchiveDownloadCount(ctx, r.RepoID, r.ID)
+	return err
+}
+
+// APIURL the api url for a release. release must have attributes loaded
+func (r *Release) APIURL() string {
+	return r.Repo.APIURL() + "/releases/" + strconv.FormatInt(r.ID, 10)
+}
+
+// ZipURL the zip url for a release. release must have attributes loaded
+func (r *Release) ZipURL() string {
+	return r.Repo.HTMLURL() + "/archive/" + util.PathEscapeSegments(r.TagName) + ".zip"
+}
+
+// TarURL the tar.gz url for a release. release must have attributes loaded
+func (r *Release) TarURL() string {
+	return r.Repo.HTMLURL() + "/archive/" + util.PathEscapeSegments(r.TagName) + ".tar.gz"
+}
+
+// HTMLURL the url for a release on the web UI. release must have attributes loaded
+func (r *Release) HTMLURL() string {
+	return r.Repo.HTMLURL() + "/releases/tag/" + util.PathEscapeSegments(r.TagName)
+}
+
+// APIUploadURL the api url to upload assets to a release. release must have attributes loaded
+func (r *Release) APIUploadURL() string {
+	return r.APIURL() + "/assets"
+}
+
+// Link the relative url for a release on the web UI. release must have attributes loaded
+func (r *Release) Link() string {
+	return r.Repo.Link() + "/releases/tag/" + util.PathEscapeSegments(r.TagName)
+}
+
+// IsReleaseExist returns true if release with given tag name already exists.
+func IsReleaseExist(ctx context.Context, repoID int64, tagName string) (bool, error) {
+	if len(tagName) == 0 {
+		return false, nil
+	}
+
+	return db.GetEngine(ctx).Exist(&Release{RepoID: repoID, LowerTagName: strings.ToLower(tagName)})
+}
+
+// UpdateRelease updates all columns of a release
+func UpdateRelease(ctx context.Context, rel *Release) error {
+	_, err := db.GetEngine(ctx).ID(rel.ID).AllCols().Update(rel)
+	return err
+}
+
+// AddReleaseAttachments adds a release attachments
+func AddReleaseAttachments(ctx context.Context, releaseID int64, attachmentUUIDs []string) (err error) {
+	// Check attachments
+	attachments, err := GetAttachmentsByUUIDs(ctx, attachmentUUIDs)
+	if err != nil {
+		return fmt.Errorf("GetAttachmentsByUUIDs [uuids: %v]: %w", attachmentUUIDs, err)
+	}
+
+	for i := range attachments {
+		if attachments[i].ReleaseID != 0 {
+			return util.NewPermissionDeniedErrorf("release permission denied")
+		}
+		attachments[i].ReleaseID = releaseID
+		// No assign value could be 0, so ignore AllCols().
+		if _, err = db.GetEngine(ctx).ID(attachments[i].ID).Update(attachments[i]); err != nil {
+			return fmt.Errorf("update attachment [%d]: %w", attachments[i].ID, err)
+		}
+	}
+
+	return err
+}
+
+// GetRelease returns release by given ID.
+func GetRelease(ctx context.Context, repoID int64, tagName string) (*Release, error) {
+	rel := &Release{RepoID: repoID, LowerTagName: strings.ToLower(tagName)}
+	has, err := db.GetEngine(ctx).Get(rel)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrReleaseNotExist{0, tagName}
+	}
+	return rel, nil
+}
+
+// GetReleaseByID returns release with given ID.
+func GetReleaseByID(ctx context.Context, id int64) (*Release, error) {
+	rel := new(Release)
+	has, err := db.GetEngine(ctx).
+		ID(id).
+		Get(rel)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrReleaseNotExist{id, ""}
+	}
+
+	return rel, nil
+}
+
+// GetReleaseForRepoByID returns release with given ID.
+func GetReleaseForRepoByID(ctx context.Context, repoID, id int64) (*Release, error) {
+	rel := new(Release)
+	has, err := db.GetEngine(ctx).
+		Where("id=? AND repo_id=?", id, repoID).
+		Get(rel)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrReleaseNotExist{id, ""}
+	}
+
+	return rel, nil
+}
+
+// FindReleasesOptions describes the conditions to Find releases
+type FindReleasesOptions struct {
+	db.ListOptions
+	RepoID        int64
+	IncludeDrafts bool
+	IncludeTags   bool
+	IsPreRelease  optional.Option[bool]
+	IsDraft       optional.Option[bool]
+	TagNames      []string
+	HasSha1       optional.Option[bool] // useful to find draft releases which are created with existing tags
+}
+
+func (opts FindReleasesOptions) ToConds() builder.Cond {
+	var cond builder.Cond = builder.Eq{"repo_id": opts.RepoID}
+
+	if !opts.IncludeDrafts {
+		cond = cond.And(builder.Eq{"is_draft": false})
+	}
+	if !opts.IncludeTags {
+		cond = cond.And(builder.Eq{"is_tag": false})
+	}
+	if len(opts.TagNames) > 0 {
+		cond = cond.And(builder.In("tag_name", opts.TagNames))
+	}
+	if opts.IsPreRelease.Has() {
+		cond = cond.And(builder.Eq{"is_prerelease": opts.IsPreRelease.Value()})
+	}
+	if opts.IsDraft.Has() {
+		cond = cond.And(builder.Eq{"is_draft": opts.IsDraft.Value()})
+	}
+	if opts.HasSha1.Has() {
+		if opts.HasSha1.Value() {
+			cond = cond.And(builder.Neq{"sha1": ""})
+		} else {
+			cond = cond.And(builder.Eq{"sha1": ""})
+		}
+	}
+	return cond
+}
+
+func (opts FindReleasesOptions) ToOrders() string {
+	return "created_unix DESC, id DESC"
+}
+
+// GetTagNamesByRepoID returns a list of release tag names of repository.
+func GetTagNamesByRepoID(ctx context.Context, repoID int64) ([]string, error) {
+	listOptions := db.ListOptions{
+		ListAll: true,
+	}
+	opts := FindReleasesOptions{
+		ListOptions:   listOptions,
+		IncludeDrafts: true,
+		IncludeTags:   true,
+		HasSha1:       optional.Some(true),
+		RepoID:        repoID,
+	}
+
+	tags := make([]string, 0)
+	sess := db.GetEngine(ctx).
+		Table("release").
+		Desc("created_unix", "id").
+		Where(opts.ToConds()).
+		Cols("tag_name")
+
+	return tags, sess.Find(&tags)
+}
+
+// GetLatestReleaseByRepoID returns the latest release for a repository
+func GetLatestReleaseByRepoID(ctx context.Context, repoID int64) (*Release, error) {
+	cond := builder.NewCond().
+		And(builder.Eq{"repo_id": repoID}).
+		And(builder.Eq{"is_draft": false}).
+		And(builder.Eq{"is_prerelease": false}).
+		And(builder.Eq{"is_tag": false})
+
+	rel := new(Release)
+	has, err := db.GetEngine(ctx).
+		Desc("created_unix", "id").
+		Where(cond).
+		Get(rel)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrReleaseNotExist{0, "latest"}
+	}
+
+	return rel, nil
+}
+
+type releaseMetaSearch struct {
+	ID  []int64
+	Rel []*Release
+}
+
+func (s releaseMetaSearch) Len() int {
+	return len(s.ID)
+}
+
+func (s releaseMetaSearch) Swap(i, j int) {
+	s.ID[i], s.ID[j] = s.ID[j], s.ID[i]
+	s.Rel[i], s.Rel[j] = s.Rel[j], s.Rel[i]
+}
+
+func (s releaseMetaSearch) Less(i, j int) bool {
+	return s.ID[i] < s.ID[j]
+}
+
+func hasDuplicateName(attaches []*Attachment) bool {
+	attachSet := container.Set[string]{}
+	for _, attachment := range attaches {
+		if attachSet.Contains(attachment.Name) {
+			return true
+		}
+		attachSet.Add(attachment.Name)
+	}
+	return false
+}
+
+// GetReleaseAttachments retrieves the attachments for releases
+func GetReleaseAttachments(ctx context.Context, rels ...*Release) (err error) {
+	if len(rels) == 0 {
+		return nil
+	}
+
+	// To keep this efficient as possible sort all releases by id,
+	//    select attachments by release id,
+	//    then merge join them
+
+	// Sort
+	sortedRels := releaseMetaSearch{ID: make([]int64, len(rels)), Rel: make([]*Release, len(rels))}
+	var attachments []*Attachment
+	for index, element := range rels {
+		element.Attachments = []*Attachment{}
+		sortedRels.ID[index] = element.ID
+		sortedRels.Rel[index] = element
+	}
+	sort.Sort(sortedRels)
+
+	// Select attachments
+	err = db.GetEngine(ctx).
+		Asc("release_id", "name").
+		In("release_id", sortedRels.ID).
+		Find(&attachments)
+	if err != nil {
+		return err
+	}
+
+	// merge join
+	currentIndex := 0
+	for _, attachment := range attachments {
+		for sortedRels.ID[currentIndex] < attachment.ReleaseID {
+			currentIndex++
+		}
+		sortedRels.Rel[currentIndex].Attachments = append(sortedRels.Rel[currentIndex].Attachments, attachment)
+	}
+
+	// Makes URL's predictable
+	for _, release := range rels {
+		// If we have no Repo, we don't need to execute this loop
+		if release.Repo == nil {
+			continue
+		}
+
+		// If the names unique, use the URL with the Name instead of the UUID
+		if !hasDuplicateName(release.Attachments) {
+			for _, attachment := range release.Attachments {
+				attachment.CustomDownloadURL = release.Repo.HTMLURL() + "/releases/download/" + url.PathEscape(release.TagName) + "/" + url.PathEscape(attachment.Name)
+			}
+		}
+	}
+
+	return err
+}
+
+// UpdateReleasesMigrationsByType updates all migrated repositories' releases from gitServiceType to replace originalAuthorID to posterID
+func UpdateReleasesMigrationsByType(ctx context.Context, gitServiceType structs.GitServiceType, originalAuthorID string, posterID int64) error {
+	_, err := db.GetEngine(ctx).Table("release").
+		Where("repo_id IN (SELECT id FROM repository WHERE original_service_type = ?)", gitServiceType).
+		And("original_author_id = ?", originalAuthorID).
+		Update(map[string]any{
+			"publisher_id":       posterID,
+			"original_author":    "",
+			"original_author_id": 0,
+		})
+	return err
+}
+
+// PushUpdateDeleteTagsContext updates a number of delete tags with context
+func PushUpdateDeleteTagsContext(ctx context.Context, repo *Repository, tags []string) error {
+	if len(tags) == 0 {
+		return nil
+	}
+	lowerTags := make([]string, 0, len(tags))
+	for _, tag := range tags {
+		lowerTags = append(lowerTags, strings.ToLower(tag))
+	}
+
+	for _, tag := range tags {
+		release, err := GetRelease(ctx, repo.ID, tag)
+		if err != nil {
+			return fmt.Errorf("GetRelease: %w", err)
+		}
+
+		err = DeleteArchiveDownloadCountForRelease(ctx, release.ID)
+		if err != nil {
+			return fmt.Errorf("DeleteTagArchiveDownloadCount: %w", err)
+		}
+	}
+
+	if _, err := db.GetEngine(ctx).
+		Where("repo_id = ? AND is_tag = ?", repo.ID, true).
+		In("lower_tag_name", lowerTags).
+		Delete(new(Release)); err != nil {
+		return fmt.Errorf("Delete: %w", err)
+	}
+
+	if _, err := db.GetEngine(ctx).
+		Where("repo_id = ? AND is_tag = ?", repo.ID, false).
+		In("lower_tag_name", lowerTags).
+		Cols("is_draft", "num_commits", "sha1").
+		Update(&Release{
+			IsDraft: true,
+		}); err != nil {
+		return fmt.Errorf("Update: %w", err)
+	}
+
+	return nil
+}
+
+// PushUpdateDeleteTag must be called for any push actions to delete tag
+func PushUpdateDeleteTag(ctx context.Context, repo *Repository, tagName string) error {
+	rel, err := GetRelease(ctx, repo.ID, tagName)
+	if err != nil {
+		if IsErrReleaseNotExist(err) {
+			return nil
+		}
+		return fmt.Errorf("GetRelease: %w", err)
+	}
+	if rel.IsTag {
+		if _, err = db.DeleteByID[Release](ctx, rel.ID); err != nil {
+			return fmt.Errorf("Delete: %w", err)
+		}
+	} else {
+		rel.IsDraft = true
+		rel.NumCommits = 0
+		rel.Sha1 = ""
+		if _, err = db.GetEngine(ctx).ID(rel.ID).AllCols().Update(rel); err != nil {
+			return fmt.Errorf("Update: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// SaveOrUpdateTag must be called for any push actions to add tag
+func SaveOrUpdateTag(ctx context.Context, repo *Repository, newRel *Release) error {
+	rel, err := GetRelease(ctx, repo.ID, newRel.TagName)
+	if err != nil && !IsErrReleaseNotExist(err) {
+		return fmt.Errorf("GetRelease: %w", err)
+	}
+
+	if rel == nil {
+		rel = newRel
+		if _, err = db.GetEngine(ctx).Insert(rel); err != nil {
+			return fmt.Errorf("InsertOne: %w", err)
+		}
+	} else {
+		rel.Sha1 = newRel.Sha1
+		rel.CreatedUnix = newRel.CreatedUnix
+		rel.NumCommits = newRel.NumCommits
+		rel.IsDraft = false
+		if rel.IsTag && newRel.PublisherID > 0 {
+			rel.PublisherID = newRel.PublisherID
+		}
+		if _, err = db.GetEngine(ctx).ID(rel.ID).AllCols().Update(rel); err != nil {
+			return fmt.Errorf("Update: %w", err)
+		}
+	}
+	return nil
+}
+
+// RemapExternalUser ExternalUserRemappable interface
+func (r *Release) RemapExternalUser(externalName string, externalID, userID int64) error {
+	r.OriginalAuthor = externalName
+	r.OriginalAuthorID = externalID
+	r.PublisherID = userID
+	return nil
+}
+
+// UserID ExternalUserRemappable interface
+func (r *Release) GetUserID() int64 { return r.PublisherID }
+
+// ExternalName ExternalUserRemappable interface
+func (r *Release) GetExternalName() string { return r.OriginalAuthor }
+
+// ExternalID ExternalUserRemappable interface
+func (r *Release) GetExternalID() int64 { return r.OriginalAuthorID }
+
+// InsertReleases migrates release
+func InsertReleases(ctx context.Context, rels ...*Release) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	for _, rel := range rels {
+		if _, err := sess.NoAutoTime().Insert(rel); err != nil {
+			return err
+		}
+
+		if len(rel.Attachments) > 0 {
+			for i := range rel.Attachments {
+				rel.Attachments[i].ReleaseID = rel.ID
+			}
+
+			if _, err := sess.NoAutoTime().Insert(rel.Attachments); err != nil {
+				return err
+			}
+		}
+	}
+
+	return committer.Commit()
+}
diff --git a/models/repo/release_test.go b/models/repo/release_test.go
new file mode 100644
index 0000000..4e61a28
--- /dev/null
+++ b/models/repo/release_test.go
@@ -0,0 +1,27 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestMigrate_InsertReleases(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	a := &Attachment{
+		UUID: "a0eebc91-9c0c-4ef7-bb6e-6bb9bd380a12",
+	}
+	r := &Release{
+		Attachments: []*Attachment{a},
+	}
+
+	err := InsertReleases(db.DefaultContext, r)
+	require.NoError(t, err)
+}
diff --git a/models/repo/repo.go b/models/repo/repo.go
new file mode 100644
index 0000000..cd6be48
--- /dev/null
+++ b/models/repo/repo.go
@@ -0,0 +1,951 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"net"
+	"net/url"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/translation"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrUserDoesNotHaveAccessToRepo represents an error where the user doesn't has access to a given repo.
+type ErrUserDoesNotHaveAccessToRepo struct {
+	UserID   int64
+	RepoName string
+}
+
+// IsErrUserDoesNotHaveAccessToRepo checks if an error is a ErrRepoFileAlreadyExists.
+func IsErrUserDoesNotHaveAccessToRepo(err error) bool {
+	_, ok := err.(ErrUserDoesNotHaveAccessToRepo)
+	return ok
+}
+
+func (err ErrUserDoesNotHaveAccessToRepo) Error() string {
+	return fmt.Sprintf("user doesn't have access to repo [user_id: %d, repo_name: %s]", err.UserID, err.RepoName)
+}
+
+func (err ErrUserDoesNotHaveAccessToRepo) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+type ErrRepoIsArchived struct {
+	Repo *Repository
+}
+
+func (err ErrRepoIsArchived) Error() string {
+	return fmt.Sprintf("%s is archived", err.Repo.LogString())
+}
+
+var (
+	reservedRepoNames    = []string{".", "..", "-"}
+	reservedRepoPatterns = []string{"*.git", "*.wiki", "*.rss", "*.atom"}
+)
+
+// IsUsableRepoName returns true when repository is usable
+func IsUsableRepoName(name string) error {
+	if db.AlphaDashDotPattern.MatchString(name) {
+		// Note: usually this error is normally caught up earlier in the UI
+		return db.ErrNameCharsNotAllowed{Name: name}
+	}
+	return db.IsUsableName(reservedRepoNames, reservedRepoPatterns, name)
+}
+
+// TrustModelType defines the types of trust model for this repository
+type TrustModelType int
+
+// kinds of TrustModel
+const (
+	DefaultTrustModel TrustModelType = iota // default trust model
+	CommitterTrustModel
+	CollaboratorTrustModel
+	CollaboratorCommitterTrustModel
+)
+
+// String converts a TrustModelType to a string
+func (t TrustModelType) String() string {
+	switch t {
+	case DefaultTrustModel:
+		return "default"
+	case CommitterTrustModel:
+		return "committer"
+	case CollaboratorTrustModel:
+		return "collaborator"
+	case CollaboratorCommitterTrustModel:
+		return "collaboratorcommitter"
+	}
+	return "default"
+}
+
+// ToTrustModel converts a string to a TrustModelType
+func ToTrustModel(model string) TrustModelType {
+	switch strings.ToLower(strings.TrimSpace(model)) {
+	case "default":
+		return DefaultTrustModel
+	case "collaborator":
+		return CollaboratorTrustModel
+	case "committer":
+		return CommitterTrustModel
+	case "collaboratorcommitter":
+		return CollaboratorCommitterTrustModel
+	}
+	return DefaultTrustModel
+}
+
+// RepositoryStatus defines the status of repository
+type RepositoryStatus int
+
+// all kinds of RepositoryStatus
+const (
+	RepositoryReady           RepositoryStatus = iota // a normal repository
+	RepositoryBeingMigrated                           // repository is migrating
+	RepositoryPendingTransfer                         // repository pending in ownership transfer state
+	RepositoryBroken                                  // repository is in a permanently broken state
+)
+
+// Repository represents a git repository.
+type Repository struct {
+	ID                  int64 `xorm:"pk autoincr"`
+	OwnerID             int64 `xorm:"UNIQUE(s) index"`
+	OwnerName           string
+	Owner               *user_model.User   `xorm:"-"`
+	LowerName           string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	Name                string             `xorm:"INDEX NOT NULL"`
+	Description         string             `xorm:"TEXT"`
+	Website             string             `xorm:"VARCHAR(2048)"`
+	OriginalServiceType api.GitServiceType `xorm:"index"`
+	OriginalURL         string             `xorm:"VARCHAR(2048)"`
+	DefaultBranch       string
+	WikiBranch          string
+
+	NumWatches          int
+	NumStars            int
+	NumForks            int
+	NumIssues           int
+	NumClosedIssues     int
+	NumOpenIssues       int `xorm:"-"`
+	NumPulls            int
+	NumClosedPulls      int
+	NumOpenPulls        int `xorm:"-"`
+	NumMilestones       int `xorm:"NOT NULL DEFAULT 0"`
+	NumClosedMilestones int `xorm:"NOT NULL DEFAULT 0"`
+	NumOpenMilestones   int `xorm:"-"`
+	NumProjects         int `xorm:"NOT NULL DEFAULT 0"`
+	NumClosedProjects   int `xorm:"NOT NULL DEFAULT 0"`
+	NumOpenProjects     int `xorm:"-"`
+	NumActionRuns       int `xorm:"NOT NULL DEFAULT 0"`
+	NumClosedActionRuns int `xorm:"NOT NULL DEFAULT 0"`
+	NumOpenActionRuns   int `xorm:"-"`
+
+	IsPrivate  bool `xorm:"INDEX"`
+	IsEmpty    bool `xorm:"INDEX"`
+	IsArchived bool `xorm:"INDEX"`
+	IsMirror   bool `xorm:"INDEX"`
+
+	Status RepositoryStatus `xorm:"NOT NULL DEFAULT 0"`
+
+	RenderingMetas         map[string]string `xorm:"-"`
+	DocumentRenderingMetas map[string]string `xorm:"-"`
+	Units                  []*RepoUnit       `xorm:"-"`
+	PrimaryLanguage        *LanguageStat     `xorm:"-"`
+
+	IsFork                          bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	ForkID                          int64              `xorm:"INDEX"`
+	BaseRepo                        *Repository        `xorm:"-"`
+	IsTemplate                      bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	TemplateID                      int64              `xorm:"INDEX"`
+	Size                            int64              `xorm:"NOT NULL DEFAULT 0"`
+	GitSize                         int64              `xorm:"NOT NULL DEFAULT 0"`
+	LFSSize                         int64              `xorm:"NOT NULL DEFAULT 0"`
+	CodeIndexerStatus               *RepoIndexerStatus `xorm:"-"`
+	StatsIndexerStatus              *RepoIndexerStatus `xorm:"-"`
+	IsFsckEnabled                   bool               `xorm:"NOT NULL DEFAULT true"`
+	CloseIssuesViaCommitInAnyBranch bool               `xorm:"NOT NULL DEFAULT false"`
+	Topics                          []string           `xorm:"TEXT JSON"`
+	ObjectFormatName                string             `xorm:"VARCHAR(6) NOT NULL DEFAULT 'sha1'"`
+
+	TrustModel TrustModelType
+
+	// Avatar: ID(10-20)-md5(32) - must fit into 64 symbols
+	Avatar string `xorm:"VARCHAR(64)"`
+
+	CreatedUnix  timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix  timeutil.TimeStamp `xorm:"INDEX updated"`
+	ArchivedUnix timeutil.TimeStamp `xorm:"DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(Repository))
+}
+
+func (repo *Repository) GetName() string {
+	return repo.Name
+}
+
+func (repo *Repository) GetOwnerName() string {
+	return repo.OwnerName
+}
+
+func (repo *Repository) GetWikiBranchName() string {
+	if repo.WikiBranch == "" {
+		return setting.Repository.DefaultBranch
+	}
+	return repo.WikiBranch
+}
+
+// SanitizedOriginalURL returns a sanitized OriginalURL
+func (repo *Repository) SanitizedOriginalURL() string {
+	if repo.OriginalURL == "" {
+		return ""
+	}
+	u, _ := util.SanitizeURL(repo.OriginalURL)
+	return u
+}
+
+// text representations to be returned in SizeDetail.Name
+const (
+	SizeDetailNameGit = "git"
+	SizeDetailNameLFS = "lfs"
+)
+
+type SizeDetail struct {
+	Name string
+	Size int64
+}
+
+// SizeDetails forms a struct with various size details about repository
+// Note: SizeDetailsString below expects it to have 2 entries
+func (repo *Repository) SizeDetails() []SizeDetail {
+	sizeDetails := []SizeDetail{
+		{
+			Name: SizeDetailNameGit,
+			Size: repo.GitSize,
+		},
+		{
+			Name: SizeDetailNameLFS,
+			Size: repo.LFSSize,
+		},
+	}
+	return sizeDetails
+}
+
+// SizeDetailsString returns a concatenation of all repository size details as a string
+func (repo *Repository) SizeDetailsString(locale translation.Locale) string {
+	sizeDetails := repo.SizeDetails()
+	return locale.TrString("repo.size_format", sizeDetails[0].Name, locale.TrSize(sizeDetails[0].Size), sizeDetails[1].Name, locale.TrSize(sizeDetails[1].Size))
+}
+
+func (repo *Repository) LogString() string {
+	if repo == nil {
+		return "<Repository nil>"
+	}
+	return fmt.Sprintf("<Repository %d:%s/%s>", repo.ID, repo.OwnerName, repo.Name)
+}
+
+// IsBeingMigrated indicates that repository is being migrated
+func (repo *Repository) IsBeingMigrated() bool {
+	return repo.Status == RepositoryBeingMigrated
+}
+
+// IsBeingCreated indicates that repository is being migrated or forked
+func (repo *Repository) IsBeingCreated() bool {
+	return repo.IsBeingMigrated()
+}
+
+// IsBroken indicates that repository is broken
+func (repo *Repository) IsBroken() bool {
+	return repo.Status == RepositoryBroken
+}
+
+// MarkAsBrokenEmpty marks the repo as broken and empty
+func (repo *Repository) MarkAsBrokenEmpty() {
+	repo.Status = RepositoryBroken
+	repo.IsEmpty = true
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (repo *Repository) AfterLoad() {
+	repo.NumOpenIssues = repo.NumIssues - repo.NumClosedIssues
+	repo.NumOpenPulls = repo.NumPulls - repo.NumClosedPulls
+	repo.NumOpenMilestones = repo.NumMilestones - repo.NumClosedMilestones
+	repo.NumOpenProjects = repo.NumProjects - repo.NumClosedProjects
+	repo.NumOpenActionRuns = repo.NumActionRuns - repo.NumClosedActionRuns
+}
+
+// LoadAttributes loads attributes of the repository.
+func (repo *Repository) LoadAttributes(ctx context.Context) error {
+	// Load owner
+	if err := repo.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	// Load primary language
+	stats := make(LanguageStatList, 0, 1)
+	if err := db.GetEngine(ctx).
+		Where("`repo_id` = ? AND `is_primary` = ? AND `language` != ?", repo.ID, true, "other").
+		Find(&stats); err != nil {
+		return fmt.Errorf("find primary languages: %w", err)
+	}
+	stats.LoadAttributes()
+	for _, st := range stats {
+		if st.RepoID == repo.ID {
+			repo.PrimaryLanguage = st
+			break
+		}
+	}
+	return nil
+}
+
+// FullName returns the repository full name
+func (repo *Repository) FullName() string {
+	return repo.OwnerName + "/" + repo.Name
+}
+
+// HTMLURL returns the repository HTML URL
+func (repo *Repository) HTMLURL() string {
+	return setting.AppURL + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// CommitLink make link to by commit full ID
+// note: won't check whether it's an right id
+func (repo *Repository) CommitLink(commitID string) (result string) {
+	if git.IsEmptyCommitID(commitID, nil) {
+		result = ""
+	} else {
+		result = repo.Link() + "/commit/" + url.PathEscape(commitID)
+	}
+	return result
+}
+
+// APIURL returns the repository API URL
+func (repo *Repository) APIURL() string {
+	return setting.AppURL + "api/v1/repos/" + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// APActorID returns the activitypub repository API URL
+func (repo *Repository) APActorID() string {
+	return fmt.Sprintf("%vapi/v1/activitypub/repository-id/%v", setting.AppURL, url.PathEscape(fmt.Sprint(repo.ID)))
+}
+
+// GetCommitsCountCacheKey returns cache key used for commits count caching.
+func (repo *Repository) GetCommitsCountCacheKey(contextName string, isRef bool) string {
+	var prefix string
+	if isRef {
+		prefix = "ref"
+	} else {
+		prefix = "commit"
+	}
+	return fmt.Sprintf("commits-count-%d-%s-%s", repo.ID, prefix, contextName)
+}
+
+// LoadUnits loads repo units into repo.Units
+func (repo *Repository) LoadUnits(ctx context.Context) (err error) {
+	if repo.Units != nil {
+		return nil
+	}
+
+	repo.Units, err = getUnitsByRepoID(ctx, repo.ID)
+	if log.IsTrace() {
+		unitTypeStrings := make([]string, len(repo.Units))
+		for i, unit := range repo.Units {
+			unitTypeStrings[i] = unit.Type.String()
+		}
+		log.Trace("repo.Units, ID=%d, Types: [%s]", repo.ID, strings.Join(unitTypeStrings, ", "))
+	}
+
+	return err
+}
+
+// UnitEnabled if this repository has the given unit enabled
+func (repo *Repository) UnitEnabled(ctx context.Context, tp unit.Type) bool {
+	if err := repo.LoadUnits(ctx); err != nil {
+		log.Warn("Error loading repository (ID: %d) units: %s", repo.ID, err.Error())
+	}
+	for _, unit := range repo.Units {
+		if unit.Type == tp {
+			return true
+		}
+	}
+	return false
+}
+
+// MustGetUnit always returns a RepoUnit object
+func (repo *Repository) MustGetUnit(ctx context.Context, tp unit.Type) *RepoUnit {
+	ru, err := repo.GetUnit(ctx, tp)
+	if err == nil {
+		return ru
+	}
+
+	if tp == unit.TypeExternalWiki {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(ExternalWikiConfig),
+		}
+	} else if tp == unit.TypeExternalTracker {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(ExternalTrackerConfig),
+		}
+	} else if tp == unit.TypePullRequests {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(PullRequestsConfig),
+		}
+	} else if tp == unit.TypeIssues {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(IssuesConfig),
+		}
+	} else if tp == unit.TypeActions {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(ActionsConfig),
+		}
+	}
+
+	return &RepoUnit{
+		Type:   tp,
+		Config: new(UnitConfig),
+	}
+}
+
+// GetUnit returns a RepoUnit object
+func (repo *Repository) GetUnit(ctx context.Context, tp unit.Type) (*RepoUnit, error) {
+	if err := repo.LoadUnits(ctx); err != nil {
+		return nil, err
+	}
+	for _, unit := range repo.Units {
+		if unit.Type == tp {
+			return unit, nil
+		}
+	}
+	return nil, ErrUnitTypeNotExist{tp}
+}
+
+// AllUnitsEnabled returns true if all units are enabled for the repo.
+func (repo *Repository) AllUnitsEnabled(ctx context.Context) bool {
+	hasAnyUnitEnabled := func(unitGroup []unit.Type) bool {
+		// Loop over the group of units
+		for _, unit := range unitGroup {
+			// If *any* of them is enabled, return true.
+			if repo.UnitEnabled(ctx, unit) {
+				return true
+			}
+		}
+
+		// If none are enabled, return false.
+		return false
+	}
+
+	for _, unitGroup := range unit.AllowedRepoUnitGroups {
+		// If any disabled unit is found, return false immediately.
+		if !hasAnyUnitEnabled(unitGroup) {
+			return false
+		}
+	}
+
+	return true
+}
+
+// LoadOwner loads owner user
+func (repo *Repository) LoadOwner(ctx context.Context) (err error) {
+	if repo.Owner != nil {
+		return nil
+	}
+
+	repo.Owner, err = user_model.GetUserByID(ctx, repo.OwnerID)
+	return err
+}
+
+// MustOwner always returns a valid *user_model.User object to avoid
+// conceptually impossible error handling.
+// It creates a fake object that contains error details
+// when error occurs.
+func (repo *Repository) MustOwner(ctx context.Context) *user_model.User {
+	if err := repo.LoadOwner(ctx); err != nil {
+		return &user_model.User{
+			Name:     "error",
+			FullName: err.Error(),
+		}
+	}
+
+	return repo.Owner
+}
+
+// ComposeMetas composes a map of metas for properly rendering issue links and external issue trackers.
+func (repo *Repository) ComposeMetas(ctx context.Context) map[string]string {
+	if len(repo.RenderingMetas) == 0 {
+		metas := map[string]string{
+			"user":     repo.OwnerName,
+			"repo":     repo.Name,
+			"repoPath": repo.RepoPath(),
+			"mode":     "comment",
+		}
+
+		unit, err := repo.GetUnit(ctx, unit.TypeExternalTracker)
+		if err == nil {
+			metas["format"] = unit.ExternalTrackerConfig().ExternalTrackerFormat
+			switch unit.ExternalTrackerConfig().ExternalTrackerStyle {
+			case markup.IssueNameStyleAlphanumeric:
+				metas["style"] = markup.IssueNameStyleAlphanumeric
+			case markup.IssueNameStyleRegexp:
+				metas["style"] = markup.IssueNameStyleRegexp
+				metas["regexp"] = unit.ExternalTrackerConfig().ExternalTrackerRegexpPattern
+			default:
+				metas["style"] = markup.IssueNameStyleNumeric
+			}
+		}
+
+		repo.MustOwner(ctx)
+		if repo.Owner.IsOrganization() {
+			teams := make([]string, 0, 5)
+			_ = db.GetEngine(ctx).Table("team_repo").
+				Join("INNER", "team", "team.id = team_repo.team_id").
+				Where("team_repo.repo_id = ?", repo.ID).
+				Select("team.lower_name").
+				OrderBy("team.lower_name").
+				Find(&teams)
+			metas["teams"] = "," + strings.Join(teams, ",") + ","
+			metas["org"] = strings.ToLower(repo.OwnerName)
+		}
+
+		repo.RenderingMetas = metas
+	}
+	return repo.RenderingMetas
+}
+
+// ComposeDocumentMetas composes a map of metas for properly rendering documents
+func (repo *Repository) ComposeDocumentMetas(ctx context.Context) map[string]string {
+	if len(repo.DocumentRenderingMetas) == 0 {
+		metas := map[string]string{}
+		for k, v := range repo.ComposeMetas(ctx) {
+			metas[k] = v
+		}
+		metas["mode"] = "document"
+		repo.DocumentRenderingMetas = metas
+	}
+	return repo.DocumentRenderingMetas
+}
+
+// GetBaseRepo populates repo.BaseRepo for a fork repository and
+// returns an error on failure (NOTE: no error is returned for
+// non-fork repositories, and BaseRepo will be left untouched)
+func (repo *Repository) GetBaseRepo(ctx context.Context) (err error) {
+	if !repo.IsFork {
+		return nil
+	}
+
+	if repo.BaseRepo != nil {
+		return nil
+	}
+	repo.BaseRepo, err = GetRepositoryByID(ctx, repo.ForkID)
+	return err
+}
+
+// IsGenerated returns whether _this_ repository was generated from a template
+func (repo *Repository) IsGenerated() bool {
+	return repo.TemplateID != 0
+}
+
+// RepoPath returns repository path by given user and repository name.
+func RepoPath(userName, repoName string) string { //revive:disable-line:exported
+	return filepath.Join(user_model.UserPath(userName), strings.ToLower(repoName)+".git")
+}
+
+// RepoPath returns the repository path
+func (repo *Repository) RepoPath() string {
+	return RepoPath(repo.OwnerName, repo.Name)
+}
+
+// Link returns the repository relative url
+func (repo *Repository) Link() string {
+	return setting.AppSubURL + "/" + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// ComposeCompareURL returns the repository comparison URL
+func (repo *Repository) ComposeCompareURL(oldCommitID, newCommitID string) string {
+	return fmt.Sprintf("%s/%s/compare/%s...%s", url.PathEscape(repo.OwnerName), url.PathEscape(repo.Name), util.PathEscapeSegments(oldCommitID), util.PathEscapeSegments(newCommitID))
+}
+
+func (repo *Repository) ComposeBranchCompareURL(baseRepo *Repository, branchName string) string {
+	if baseRepo == nil {
+		baseRepo = repo
+	}
+	var cmpBranchEscaped string
+	if repo.ID != baseRepo.ID {
+		cmpBranchEscaped = fmt.Sprintf("%s/%s:", url.PathEscape(repo.OwnerName), url.PathEscape(repo.Name))
+	}
+	cmpBranchEscaped = fmt.Sprintf("%s%s", cmpBranchEscaped, util.PathEscapeSegments(branchName))
+	return fmt.Sprintf("%s/compare/%s...%s", baseRepo.Link(), util.PathEscapeSegments(baseRepo.DefaultBranch), cmpBranchEscaped)
+}
+
+// IsOwnedBy returns true when user owns this repository
+func (repo *Repository) IsOwnedBy(userID int64) bool {
+	return repo.OwnerID == userID
+}
+
+// CanCreateBranch returns true if repository meets the requirements for creating new branches.
+func (repo *Repository) CanCreateBranch() bool {
+	return !repo.IsMirror
+}
+
+// CanEnablePulls returns true if repository meets the requirements of accepting pulls.
+func (repo *Repository) CanEnablePulls() bool {
+	return !repo.IsMirror && !repo.IsEmpty
+}
+
+// AllowsPulls returns true if repository meets the requirements of accepting pulls and has them enabled.
+func (repo *Repository) AllowsPulls(ctx context.Context) bool {
+	return repo.CanEnablePulls() && repo.UnitEnabled(ctx, unit.TypePullRequests)
+}
+
+// CanEnableEditor returns true if repository meets the requirements of web editor.
+func (repo *Repository) CanEnableEditor() bool {
+	return !repo.IsMirror
+}
+
+// DescriptionHTML does special handles to description and return HTML string.
+func (repo *Repository) DescriptionHTML(ctx context.Context) template.HTML {
+	desc, err := markup.RenderDescriptionHTML(&markup.RenderContext{
+		Ctx: ctx,
+		// Don't use Metas to speedup requests
+	}, repo.Description)
+	if err != nil {
+		log.Error("Failed to render description for %s (ID: %d): %v", repo.Name, repo.ID, err)
+		return template.HTML(markup.SanitizeDescription(repo.Description))
+	}
+	return template.HTML(markup.SanitizeDescription(desc))
+}
+
+// CloneLink represents different types of clone URLs of repository.
+type CloneLink struct {
+	SSH   string
+	HTTPS string
+}
+
+// ComposeHTTPSCloneURL returns HTTPS clone URL based on given owner and repository name.
+func ComposeHTTPSCloneURL(owner, repo string) string {
+	return fmt.Sprintf("%s%s/%s.git", setting.AppURL, url.PathEscape(owner), url.PathEscape(repo))
+}
+
+func ComposeSSHCloneURL(ownerName, repoName string) string {
+	sshUser := setting.SSH.User
+	sshDomain := setting.SSH.Domain
+
+	// non-standard port, it must use full URI
+	if setting.SSH.Port != 22 {
+		sshHost := net.JoinHostPort(sshDomain, strconv.Itoa(setting.SSH.Port))
+		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
+	}
+
+	// for standard port, it can use a shorter URI (without the port)
+	sshHost := sshDomain
+	if ip := net.ParseIP(sshHost); ip != nil && ip.To4() == nil {
+		sshHost = "[" + sshHost + "]" // for IPv6 address, wrap it with brackets
+	}
+	if setting.Repository.UseCompatSSHURI {
+		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
+	}
+	return fmt.Sprintf("%s@%s:%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
+}
+
+func (repo *Repository) cloneLink(isWiki bool) *CloneLink {
+	repoName := repo.Name
+	if isWiki {
+		repoName += ".wiki"
+	}
+
+	cl := new(CloneLink)
+	cl.SSH = ComposeSSHCloneURL(repo.OwnerName, repoName)
+	cl.HTTPS = ComposeHTTPSCloneURL(repo.OwnerName, repoName)
+	return cl
+}
+
+// CloneLink returns clone URLs of repository.
+func (repo *Repository) CloneLink() (cl *CloneLink) {
+	return repo.cloneLink(false)
+}
+
+// GetOriginalURLHostname returns the hostname of a URL or the URL
+func (repo *Repository) GetOriginalURLHostname() string {
+	u, err := url.Parse(repo.OriginalURL)
+	if err != nil {
+		return repo.OriginalURL
+	}
+
+	return u.Host
+}
+
+// GetTrustModel will get the TrustModel for the repo or the default trust model
+func (repo *Repository) GetTrustModel() TrustModelType {
+	trustModel := repo.TrustModel
+	if trustModel == DefaultTrustModel {
+		trustModel = ToTrustModel(setting.Repository.Signing.DefaultTrustModel)
+		if trustModel == DefaultTrustModel {
+			return CollaboratorTrustModel
+		}
+	}
+	return trustModel
+}
+
+// MustNotBeArchived returns ErrRepoIsArchived if the repo is archived
+func (repo *Repository) MustNotBeArchived() error {
+	if repo.IsArchived {
+		return ErrRepoIsArchived{Repo: repo}
+	}
+	return nil
+}
+
+// __________                           .__  __
+// \______   \ ____ ______   ____  _____|__|/  |_  ___________ ___.__.
+//  |       _// __ \\____ \ /  _ \/  ___/  \   __\/  _ \_  __ <   |  |
+//  |    |   \  ___/|  |_> >  <_> )___ \|  ||  | (  <_> )  | \/\___  |
+//  |____|_  /\___  >   __/ \____/____  >__||__|  \____/|__|   / ____|
+//         \/     \/|__|              \/                       \/
+
+// ErrRepoNotExist represents a "RepoNotExist" kind of error.
+type ErrRepoNotExist struct {
+	ID        int64
+	UID       int64
+	OwnerName string
+	Name      string
+}
+
+// IsErrRepoNotExist checks if an error is a ErrRepoNotExist.
+func IsErrRepoNotExist(err error) bool {
+	_, ok := err.(ErrRepoNotExist)
+	return ok
+}
+
+func (err ErrRepoNotExist) Error() string {
+	return fmt.Sprintf("repository does not exist [id: %d, uid: %d, owner_name: %s, name: %s]",
+		err.ID, err.UID, err.OwnerName, err.Name)
+}
+
+// Unwrap unwraps this error as a ErrNotExist error
+func (err ErrRepoNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// GetRepositoryByOwnerAndName returns the repository by given owner name and repo name
+func GetRepositoryByOwnerAndName(ctx context.Context, ownerName, repoName string) (*Repository, error) {
+	var repo Repository
+	has, err := db.GetEngine(ctx).Table("repository").Select("repository.*").
+		Join("INNER", "`user`", "`user`.id = repository.owner_id").
+		Where("repository.lower_name = ?", strings.ToLower(repoName)).
+		And("`user`.lower_name = ?", strings.ToLower(ownerName)).
+		Get(&repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{0, 0, ownerName, repoName}
+	}
+	return &repo, nil
+}
+
+// GetRepositoryByName returns the repository by given name under user if exists.
+func GetRepositoryByName(ctx context.Context, ownerID int64, name string) (*Repository, error) {
+	var repo Repository
+	has, err := db.GetEngine(ctx).
+		Where("`owner_id`=?", ownerID).
+		And("`lower_name`=?", strings.ToLower(name)).
+		NoAutoCondition().
+		Get(&repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{0, ownerID, "", name}
+	}
+	return &repo, err
+}
+
+// getRepositoryURLPathSegments returns segments (owner, reponame) extracted from a url
+func getRepositoryURLPathSegments(repoURL string) []string {
+	if strings.HasPrefix(repoURL, setting.AppURL) {
+		return strings.Split(strings.TrimPrefix(repoURL, setting.AppURL), "/")
+	}
+
+	sshURLVariants := [4]string{
+		setting.SSH.Domain + ":",
+		setting.SSH.User + "@" + setting.SSH.Domain + ":",
+		"git+ssh://" + setting.SSH.Domain + "/",
+		"git+ssh://" + setting.SSH.User + "@" + setting.SSH.Domain + "/",
+	}
+
+	for _, sshURL := range sshURLVariants {
+		if strings.HasPrefix(repoURL, sshURL) {
+			return strings.Split(strings.TrimPrefix(repoURL, sshURL), "/")
+		}
+	}
+
+	return nil
+}
+
+// GetRepositoryByURL returns the repository by given url
+func GetRepositoryByURL(ctx context.Context, repoURL string) (*Repository, error) {
+	// possible urls for git:
+	//  https://my.domain/sub-path/<owner>/<repo>.git
+	//  https://my.domain/sub-path/<owner>/<repo>
+	//  git+ssh://user@my.domain/<owner>/<repo>.git
+	//  git+ssh://user@my.domain/<owner>/<repo>
+	//  user@my.domain:<owner>/<repo>.git
+	//  user@my.domain:<owner>/<repo>
+
+	pathSegments := getRepositoryURLPathSegments(repoURL)
+
+	if len(pathSegments) != 2 {
+		return nil, fmt.Errorf("unknown or malformed repository URL")
+	}
+
+	ownerName := pathSegments[0]
+	repoName := strings.TrimSuffix(pathSegments[1], ".git")
+	return GetRepositoryByOwnerAndName(ctx, ownerName, repoName)
+}
+
+// GetRepositoryByID returns the repository by given id if exists.
+func GetRepositoryByID(ctx context.Context, id int64) (*Repository, error) {
+	repo := new(Repository)
+	has, err := db.GetEngine(ctx).ID(id).Get(repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{id, 0, "", ""}
+	}
+	return repo, nil
+}
+
+// GetRepositoriesMapByIDs returns the repositories by given id slice.
+func GetRepositoriesMapByIDs(ctx context.Context, ids []int64) (map[int64]*Repository, error) {
+	repos := make(map[int64]*Repository, len(ids))
+	return repos, db.GetEngine(ctx).In("id", ids).Find(&repos)
+}
+
+// IsRepositoryModelOrDirExist returns true if the repository with given name under user has already existed.
+func IsRepositoryModelOrDirExist(ctx context.Context, u *user_model.User, repoName string) (bool, error) {
+	has, err := IsRepositoryModelExist(ctx, u, repoName)
+	if err != nil {
+		return false, err
+	}
+	isDir, err := util.IsDir(RepoPath(u.Name, repoName))
+	return has || isDir, err
+}
+
+func IsRepositoryModelExist(ctx context.Context, u *user_model.User, repoName string) (bool, error) {
+	return db.GetEngine(ctx).Get(&Repository{
+		OwnerID:   u.ID,
+		LowerName: strings.ToLower(repoName),
+	})
+}
+
+// GetTemplateRepo populates repo.TemplateRepo for a generated repository and
+// returns an error on failure (NOTE: no error is returned for
+// non-generated repositories, and TemplateRepo will be left untouched)
+func GetTemplateRepo(ctx context.Context, repo *Repository) (*Repository, error) {
+	if !repo.IsGenerated() {
+		return nil, nil
+	}
+
+	return GetRepositoryByID(ctx, repo.TemplateID)
+}
+
+// TemplateRepo returns the repository, which is template of this repository
+func (repo *Repository) TemplateRepo(ctx context.Context) *Repository {
+	repo, err := GetTemplateRepo(ctx, repo)
+	if err != nil {
+		log.Error("TemplateRepo: %v", err)
+		return nil
+	}
+	return repo
+}
+
+type CountRepositoryOptions struct {
+	OwnerID int64
+	Private optional.Option[bool]
+}
+
+// CountRepositories returns number of repositories.
+// Argument private only takes effect when it is false,
+// set it true to count all repositories.
+func CountRepositories(ctx context.Context, opts CountRepositoryOptions) (int64, error) {
+	sess := db.GetEngine(ctx).Where("id > 0")
+
+	if opts.OwnerID > 0 {
+		sess.And("owner_id = ?", opts.OwnerID)
+	}
+	if opts.Private.Has() {
+		sess.And("is_private=?", opts.Private.Value())
+	}
+
+	count, err := sess.Count(new(Repository))
+	if err != nil {
+		return 0, fmt.Errorf("countRepositories: %w", err)
+	}
+	return count, nil
+}
+
+// UpdateRepoIssueNumbers updates one of a repositories amount of (open|closed) (issues|PRs) with the current count
+func UpdateRepoIssueNumbers(ctx context.Context, repoID int64, isPull, isClosed bool) error {
+	field := "num_"
+	if isClosed {
+		field += "closed_"
+	}
+	if isPull {
+		field += "pulls"
+	} else {
+		field += "issues"
+	}
+
+	subQuery := builder.Select("count(*)").
+		From("issue").Where(builder.Eq{
+		"repo_id": repoID,
+		"is_pull": isPull,
+	}.And(builder.If(isClosed, builder.Eq{"is_closed": isClosed})))
+
+	// builder.Update(cond) will generate SQL like UPDATE ... SET cond
+	query := builder.Update(builder.Eq{field: subQuery}).
+		From("repository").
+		Where(builder.Eq{"id": repoID})
+	_, err := db.Exec(ctx, query)
+	return err
+}
+
+// CountNullArchivedRepository counts the number of repositories with is_archived is null
+func CountNullArchivedRepository(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.IsNull{"is_archived"}).Count(new(Repository))
+}
+
+// FixNullArchivedRepository sets is_archived to false where it is null
+func FixNullArchivedRepository(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.IsNull{"is_archived"}).Cols("is_archived").NoAutoTime().Update(&Repository{
+		IsArchived: false,
+	})
+}
+
+// UpdateRepositoryOwnerName updates the owner name of all repositories owned by the user
+func UpdateRepositoryOwnerName(ctx context.Context, oldUserName, newUserName string) error {
+	if _, err := db.GetEngine(ctx).Exec("UPDATE `repository` SET owner_name=? WHERE owner_name=?", newUserName, oldUserName); err != nil {
+		return fmt.Errorf("change repo owner name: %w", err)
+	}
+	return nil
+}
diff --git a/models/repo/repo_flags.go b/models/repo/repo_flags.go
new file mode 100644
index 0000000..de76ed2
--- /dev/null
+++ b/models/repo/repo_flags.go
@@ -0,0 +1,102 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+)
+
+// RepoFlag represents a single flag against a repository
+type RepoFlag struct { //revive:disable-line:exported
+	ID     int64  `xorm:"pk autoincr"`
+	RepoID int64  `xorm:"UNIQUE(s) INDEX"`
+	Name   string `xorm:"UNIQUE(s) INDEX"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoFlag))
+}
+
+// TableName provides the real table name
+func (RepoFlag) TableName() string {
+	return "forgejo_repo_flag"
+}
+
+// ListFlags returns the array of flags on the repo.
+func (repo *Repository) ListFlags(ctx context.Context) ([]RepoFlag, error) {
+	var flags []RepoFlag
+	err := db.GetEngine(ctx).Table(&RepoFlag{}).Where("repo_id = ?", repo.ID).Find(&flags)
+	if err != nil {
+		return nil, err
+	}
+	return flags, nil
+}
+
+// IsFlagged returns whether a repo has any flags or not
+func (repo *Repository) IsFlagged(ctx context.Context) bool {
+	has, _ := db.Exist[RepoFlag](ctx, builder.Eq{"repo_id": repo.ID})
+	return has
+}
+
+// GetFlag returns a single RepoFlag based on its name
+func (repo *Repository) GetFlag(ctx context.Context, flagName string) (bool, *RepoFlag, error) {
+	flag, has, err := db.Get[RepoFlag](ctx, builder.Eq{"repo_id": repo.ID, "name": flagName})
+	if err != nil {
+		return false, nil, err
+	}
+	return has, flag, nil
+}
+
+// HasFlag returns true if a repo has a given flag, false otherwise
+func (repo *Repository) HasFlag(ctx context.Context, flagName string) bool {
+	has, _ := db.Exist[RepoFlag](ctx, builder.Eq{"repo_id": repo.ID, "name": flagName})
+	return has
+}
+
+// AddFlag adds a new flag to the repo
+func (repo *Repository) AddFlag(ctx context.Context, flagName string) error {
+	return db.Insert(ctx, RepoFlag{
+		RepoID: repo.ID,
+		Name:   flagName,
+	})
+}
+
+// DeleteFlag removes a flag from the repo
+func (repo *Repository) DeleteFlag(ctx context.Context, flagName string) (int64, error) {
+	return db.DeleteByBean(ctx, &RepoFlag{RepoID: repo.ID, Name: flagName})
+}
+
+// ReplaceAllFlags replaces all flags of a repo with a new set
+func (repo *Repository) ReplaceAllFlags(ctx context.Context, flagNames []string) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := db.DeleteBeans(ctx, &RepoFlag{RepoID: repo.ID}); err != nil {
+		return err
+	}
+
+	if len(flagNames) == 0 {
+		return committer.Commit()
+	}
+
+	var flags []RepoFlag
+	for _, name := range flagNames {
+		flags = append(flags, RepoFlag{
+			RepoID: repo.ID,
+			Name:   name,
+		})
+	}
+	if err := db.Insert(ctx, &flags); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
diff --git a/models/repo/repo_flags_test.go b/models/repo/repo_flags_test.go
new file mode 100644
index 0000000..bccefcf
--- /dev/null
+++ b/models/repo/repo_flags_test.go
@@ -0,0 +1,115 @@
+// Copyright 2024 The Forgejo Authors c/o Codeberg e.V.. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepositoryFlags(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 10})
+
+	// ********************
+	// ** NEGATIVE TESTS **
+	// ********************
+
+	// Unless we add flags, the repo has none
+	flags, err := repo.ListFlags(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Empty(t, flags)
+
+	// If the repo has no flags, it is not flagged
+	flagged := repo.IsFlagged(db.DefaultContext)
+	assert.False(t, flagged)
+
+	// Trying to find a flag when there is none
+	has := repo.HasFlag(db.DefaultContext, "foo")
+	assert.False(t, has)
+
+	// Trying to retrieve a non-existent flag indicates not found
+	has, _, err = repo.GetFlag(db.DefaultContext, "foo")
+	require.NoError(t, err)
+	assert.False(t, has)
+
+	// Deleting a non-existent flag fails
+	deleted, err := repo.DeleteFlag(db.DefaultContext, "no-such-flag")
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), deleted)
+
+	// ********************
+	// ** POSITIVE TESTS **
+	// ********************
+
+	// Adding a flag works
+	err = repo.AddFlag(db.DefaultContext, "foo")
+	require.NoError(t, err)
+
+	// Adding it again fails
+	err = repo.AddFlag(db.DefaultContext, "foo")
+	require.Error(t, err)
+
+	// Listing flags includes the one we added
+	flags, err = repo.ListFlags(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, flags, 1)
+	assert.Equal(t, "foo", flags[0].Name)
+
+	// With a flag added, the repo is flagged
+	flagged = repo.IsFlagged(db.DefaultContext)
+	assert.True(t, flagged)
+
+	// The flag can be found
+	has = repo.HasFlag(db.DefaultContext, "foo")
+	assert.True(t, has)
+
+	// Added flag can be retrieved
+	_, flag, err := repo.GetFlag(db.DefaultContext, "foo")
+	require.NoError(t, err)
+	assert.Equal(t, "foo", flag.Name)
+
+	// Deleting a flag works
+	deleted, err = repo.DeleteFlag(db.DefaultContext, "foo")
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), deleted)
+
+	// The list is now empty
+	flags, err = repo.ListFlags(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Empty(t, flags)
+
+	// Replacing an empty list works
+	err = repo.ReplaceAllFlags(db.DefaultContext, []string{"bar"})
+	require.NoError(t, err)
+
+	// The repo is now flagged with "bar"
+	has = repo.HasFlag(db.DefaultContext, "bar")
+	assert.True(t, has)
+
+	// Replacing a tag set with another works
+	err = repo.ReplaceAllFlags(db.DefaultContext, []string{"baz", "quux"})
+	require.NoError(t, err)
+
+	// The repo now has two tags
+	flags, err = repo.ListFlags(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, flags, 2)
+	assert.Equal(t, "baz", flags[0].Name)
+	assert.Equal(t, "quux", flags[1].Name)
+
+	// Replacing flags with an empty set deletes all flags
+	err = repo.ReplaceAllFlags(db.DefaultContext, []string{})
+	require.NoError(t, err)
+
+	// The repo is now unflagged
+	flagged = repo.IsFlagged(db.DefaultContext)
+	assert.False(t, flagged)
+}
diff --git a/models/repo/repo_indexer.go b/models/repo/repo_indexer.go
new file mode 100644
index 0000000..6e19d8f
--- /dev/null
+++ b/models/repo/repo_indexer.go
@@ -0,0 +1,114 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+)
+
+// RepoIndexerType specifies the repository indexer type
+type RepoIndexerType int //revive:disable-line:exported
+
+const (
+	// RepoIndexerTypeCode code indexer
+	RepoIndexerTypeCode RepoIndexerType = iota // 0
+	// RepoIndexerTypeStats repository stats indexer
+	RepoIndexerTypeStats // 1
+)
+
+// RepoIndexerStatus status of a repo's entry in the repo indexer
+// For now, implicitly refers to default branch
+type RepoIndexerStatus struct { //revive:disable-line:exported
+	ID          int64           `xorm:"pk autoincr"`
+	RepoID      int64           `xorm:"INDEX(s)"`
+	CommitSha   string          `xorm:"VARCHAR(64)"`
+	IndexerType RepoIndexerType `xorm:"INDEX(s) NOT NULL DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoIndexerStatus))
+}
+
+// GetUnindexedRepos returns repos which do not have an indexer status
+func GetUnindexedRepos(ctx context.Context, indexerType RepoIndexerType, maxRepoID int64, page, pageSize int) ([]int64, error) {
+	ids := make([]int64, 0, 50)
+	cond := builder.Cond(builder.IsNull{
+		"repo_indexer_status.id",
+	}).And(builder.Eq{
+		"repository.is_empty": false,
+	})
+	sess := db.GetEngine(ctx).Table("repository").Join("LEFT OUTER", "repo_indexer_status", "repository.id = repo_indexer_status.repo_id AND repo_indexer_status.indexer_type = ?", indexerType)
+	if maxRepoID > 0 {
+		cond = builder.And(cond, builder.Lte{
+			"repository.id": maxRepoID,
+		})
+	}
+	if page >= 0 && pageSize > 0 {
+		start := 0
+		if page > 0 {
+			start = (page - 1) * pageSize
+		}
+		sess.Limit(pageSize, start)
+	}
+
+	sess.Where(cond).Cols("repository.id").Desc("repository.id")
+	err := sess.Find(&ids)
+	return ids, err
+}
+
+// GetIndexerStatus loads repo codes indxer status
+func GetIndexerStatus(ctx context.Context, repo *Repository, indexerType RepoIndexerType) (*RepoIndexerStatus, error) {
+	switch indexerType {
+	case RepoIndexerTypeCode:
+		if repo.CodeIndexerStatus != nil {
+			return repo.CodeIndexerStatus, nil
+		}
+	case RepoIndexerTypeStats:
+		if repo.StatsIndexerStatus != nil {
+			return repo.StatsIndexerStatus, nil
+		}
+	}
+	status := &RepoIndexerStatus{RepoID: repo.ID}
+	if has, err := db.GetEngine(ctx).Where("`indexer_type` = ?", indexerType).Get(status); err != nil {
+		return nil, err
+	} else if !has {
+		status.IndexerType = indexerType
+		status.CommitSha = ""
+	}
+	switch indexerType {
+	case RepoIndexerTypeCode:
+		repo.CodeIndexerStatus = status
+	case RepoIndexerTypeStats:
+		repo.StatsIndexerStatus = status
+	}
+	return status, nil
+}
+
+// UpdateIndexerStatus updates indexer status
+func UpdateIndexerStatus(ctx context.Context, repo *Repository, indexerType RepoIndexerType, sha string) error {
+	status, err := GetIndexerStatus(ctx, repo, indexerType)
+	if err != nil {
+		return fmt.Errorf("UpdateIndexerStatus: Unable to getIndexerStatus for repo: %s Error: %w", repo.FullName(), err)
+	}
+
+	if len(status.CommitSha) == 0 {
+		status.CommitSha = sha
+		if err := db.Insert(ctx, status); err != nil {
+			return fmt.Errorf("UpdateIndexerStatus: Unable to insert repoIndexerStatus for repo: %s Sha: %s Error: %w", repo.FullName(), sha, err)
+		}
+		return nil
+	}
+	status.CommitSha = sha
+	_, err = db.GetEngine(ctx).ID(status.ID).Cols("commit_sha").
+		Update(status)
+	if err != nil {
+		return fmt.Errorf("UpdateIndexerStatus: Unable to update repoIndexerStatus for repo: %s Sha: %s Error: %w", repo.FullName(), sha, err)
+	}
+	return nil
+}
diff --git a/models/repo/repo_list.go b/models/repo/repo_list.go
new file mode 100644
index 0000000..fc51f64
--- /dev/null
+++ b/models/repo/repo_list.go
@@ -0,0 +1,757 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// FindReposMapByIDs find repos as map
+func FindReposMapByIDs(ctx context.Context, repoIDs []int64, res map[int64]*Repository) error {
+	return db.GetEngine(ctx).In("id", repoIDs).Find(&res)
+}
+
+// RepositoryListDefaultPageSize is the default number of repositories
+// to load in memory when running administrative tasks on all (or almost
+// all) of them.
+// The number should be low enough to avoid filling up all RAM with
+// repository data...
+const RepositoryListDefaultPageSize = 64
+
+// RepositoryList contains a list of repositories
+type RepositoryList []*Repository
+
+func (repos RepositoryList) Len() int {
+	return len(repos)
+}
+
+func (repos RepositoryList) Less(i, j int) bool {
+	return repos[i].FullName() < repos[j].FullName()
+}
+
+func (repos RepositoryList) Swap(i, j int) {
+	repos[i], repos[j] = repos[j], repos[i]
+}
+
+// ValuesRepository converts a repository map to a list
+// FIXME: Remove in favor of maps.values when MIN_GO_VERSION >= 1.18
+func ValuesRepository(m map[int64]*Repository) []*Repository {
+	values := make([]*Repository, 0, len(m))
+	for _, v := range m {
+		values = append(values, v)
+	}
+	return values
+}
+
+// RepositoryListOfMap make list from values of map
+func RepositoryListOfMap(repoMap map[int64]*Repository) RepositoryList {
+	return RepositoryList(ValuesRepository(repoMap))
+}
+
+func (repos RepositoryList) LoadUnits(ctx context.Context) error {
+	if len(repos) == 0 {
+		return nil
+	}
+
+	// Load units.
+	units := make([]*RepoUnit, 0, len(repos)*6)
+	if err := db.GetEngine(ctx).
+		In("repo_id", repos.IDs()).
+		Find(&units); err != nil {
+		return fmt.Errorf("find units: %w", err)
+	}
+
+	unitsMap := make(map[int64][]*RepoUnit, len(repos))
+	for _, unit := range units {
+		if !unit.Type.UnitGlobalDisabled() {
+			unitsMap[unit.RepoID] = append(unitsMap[unit.RepoID], unit)
+		}
+	}
+
+	for _, repo := range repos {
+		repo.Units = unitsMap[repo.ID]
+	}
+
+	return nil
+}
+
+func (repos RepositoryList) IDs() []int64 {
+	repoIDs := make([]int64, len(repos))
+	for i := range repos {
+		repoIDs[i] = repos[i].ID
+	}
+	return repoIDs
+}
+
+// LoadAttributes loads the attributes for the given RepositoryList
+func (repos RepositoryList) LoadAttributes(ctx context.Context) error {
+	if len(repos) == 0 {
+		return nil
+	}
+
+	userIDs := container.FilterSlice(repos, func(repo *Repository) (int64, bool) {
+		return repo.OwnerID, true
+	})
+	repoIDs := make([]int64, len(repos))
+	for i := range repos {
+		repoIDs[i] = repos[i].ID
+	}
+
+	// Load owners.
+	users := make(map[int64]*user_model.User, len(userIDs))
+	if err := db.GetEngine(ctx).
+		Where("id > 0").
+		In("id", userIDs).
+		Find(&users); err != nil {
+		return fmt.Errorf("find users: %w", err)
+	}
+	for i := range repos {
+		repos[i].Owner = users[repos[i].OwnerID]
+	}
+
+	// Load primary language.
+	stats := make(LanguageStatList, 0, len(repos))
+	if err := db.GetEngine(ctx).
+		Where("`is_primary` = ? AND `language` != ?", true, "other").
+		In("`repo_id`", repoIDs).
+		Find(&stats); err != nil {
+		return fmt.Errorf("find primary languages: %w", err)
+	}
+	stats.LoadAttributes()
+	for i := range repos {
+		for _, st := range stats {
+			if st.RepoID == repos[i].ID {
+				repos[i].PrimaryLanguage = st
+				break
+			}
+		}
+	}
+
+	return nil
+}
+
+// SearchRepoOptions holds the search options
+type SearchRepoOptions struct {
+	db.ListOptions
+	Actor           *user_model.User
+	Keyword         string
+	OwnerID         int64
+	PriorityOwnerID int64
+	TeamID          int64
+	OrderBy         db.SearchOrderBy
+	Private         bool // Include private repositories in results
+	StarredByID     int64
+	WatchedByID     int64
+	AllPublic       bool // Include also all public repositories of users and public organisations
+	AllLimited      bool // Include also all public repositories of limited organisations
+	// None -> include public and private
+	// True -> include just private
+	// False -> include just public
+	IsPrivate optional.Option[bool]
+	// None -> include collaborative AND non-collaborative
+	// True -> include just collaborative
+	// False -> include just non-collaborative
+	Collaborate optional.Option[bool]
+	// What type of unit the user can be collaborative in,
+	// it is ignored if Collaborate is False.
+	// TypeInvalid means any unit type.
+	UnitType unit.Type
+	// None -> include forks AND non-forks
+	// True -> include just forks
+	// False -> include just non-forks
+	Fork optional.Option[bool]
+	// None -> include templates AND non-templates
+	// True -> include just templates
+	// False -> include just non-templates
+	Template optional.Option[bool]
+	// None -> include mirrors AND non-mirrors
+	// True -> include just mirrors
+	// False -> include just non-mirrors
+	Mirror optional.Option[bool]
+	// None -> include archived AND non-archived
+	// True -> include just archived
+	// False -> include just non-archived
+	Archived optional.Option[bool]
+	// only search topic name
+	TopicOnly bool
+	// only search repositories with specified primary language
+	Language string
+	// include description in keyword search
+	IncludeDescription bool
+	// None -> include has milestones AND has no milestone
+	// True -> include just has milestones
+	// False -> include just has no milestone
+	HasMilestones optional.Option[bool]
+	// LowerNames represents valid lower names to restrict to
+	LowerNames []string
+	// When specified true, apply some filters over the conditions:
+	// - Don't show forks, when opts.Fork is OptionalBoolNone.
+	// - Do not display repositories that don't have a description, an icon and topics.
+	OnlyShowRelevant bool
+}
+
+// UserOwnedRepoCond returns user ownered repositories
+func UserOwnedRepoCond(userID int64) builder.Cond {
+	return builder.Eq{
+		"repository.owner_id": userID,
+	}
+}
+
+// UserAssignedRepoCond return user as assignee repositories list
+func UserAssignedRepoCond(id string, userID int64) builder.Cond {
+	return builder.And(
+		builder.Eq{
+			"repository.is_private": false,
+		},
+		builder.In(id,
+			builder.Select("issue.repo_id").From("issue_assignees").
+				InnerJoin("issue", "issue.id = issue_assignees.issue_id").
+				Where(builder.Eq{
+					"issue_assignees.assignee_id": userID,
+				}),
+		),
+	)
+}
+
+// UserCreateIssueRepoCond return user created issues repositories list
+func UserCreateIssueRepoCond(id string, userID int64, isPull bool) builder.Cond {
+	return builder.And(
+		builder.Eq{
+			"repository.is_private": false,
+		},
+		builder.In(id,
+			builder.Select("issue.repo_id").From("issue").
+				Where(builder.Eq{
+					"issue.poster_id": userID,
+					"issue.is_pull":   isPull,
+				}),
+		),
+	)
+}
+
+// UserMentionedRepoCond return user metinoed repositories list
+func UserMentionedRepoCond(id string, userID int64) builder.Cond {
+	return builder.And(
+		builder.Eq{
+			"repository.is_private": false,
+		},
+		builder.In(id,
+			builder.Select("issue.repo_id").From("issue_user").
+				InnerJoin("issue", "issue.id = issue_user.issue_id").
+				Where(builder.Eq{
+					"issue_user.is_mentioned": true,
+					"issue_user.uid":          userID,
+				}),
+		),
+	)
+}
+
+// UserAccessRepoCond returns a condition for selecting all repositories a user has unit independent access to
+func UserAccessRepoCond(idStr string, userID int64) builder.Cond {
+	return builder.In(idStr, builder.Select("repo_id").
+		From("`access`").
+		Where(builder.And(
+			builder.Eq{"`access`.user_id": userID},
+			builder.Gt{"`access`.mode": int(perm.AccessModeNone)},
+		)),
+	)
+}
+
+// userCollaborationRepoCond returns a condition for selecting all repositories a user is collaborator in
+func UserCollaborationRepoCond(idStr string, userID int64) builder.Cond {
+	return builder.In(idStr, builder.Select("repo_id").
+		From("`collaboration`").
+		Where(builder.And(
+			builder.Eq{"`collaboration`.user_id": userID},
+		)),
+	)
+}
+
+// UserOrgTeamRepoCond selects repos that the given user has access to through team membership
+func UserOrgTeamRepoCond(idStr string, userID int64) builder.Cond {
+	return builder.In(idStr, userOrgTeamRepoBuilder(userID))
+}
+
+// userOrgTeamRepoBuilder returns repo ids where user's teams can access.
+func userOrgTeamRepoBuilder(userID int64) *builder.Builder {
+	return builder.Select("`team_repo`.repo_id").
+		From("team_repo").
+		Join("INNER", "team_user", "`team_user`.team_id = `team_repo`.team_id").
+		Where(builder.Eq{"`team_user`.uid": userID})
+}
+
+// userOrgTeamUnitRepoBuilder returns repo ids where user's teams can access the special unit.
+func userOrgTeamUnitRepoBuilder(userID int64, unitType unit.Type) *builder.Builder {
+	return userOrgTeamRepoBuilder(userID).
+		Join("INNER", "team_unit", "`team_unit`.team_id = `team_repo`.team_id").
+		Where(builder.Eq{"`team_unit`.`type`": unitType}).
+		And(builder.Gt{"`team_unit`.`access_mode`": int(perm.AccessModeNone)})
+}
+
+// userOrgTeamUnitRepoCond returns a condition to select repo ids where user's teams can access the special unit.
+func userOrgTeamUnitRepoCond(idStr string, userID int64, unitType unit.Type) builder.Cond {
+	return builder.In(idStr, userOrgTeamUnitRepoBuilder(userID, unitType))
+}
+
+// UserOrgUnitRepoCond selects repos that the given user has access to through org and the special unit
+func UserOrgUnitRepoCond(idStr string, userID, orgID int64, unitType unit.Type) builder.Cond {
+	return builder.In(idStr,
+		userOrgTeamUnitRepoBuilder(userID, unitType).
+			And(builder.Eq{"`team_unit`.org_id": orgID}),
+	)
+}
+
+// userOrgPublicRepoCond returns the condition that one user could access all public repositories in organizations
+func userOrgPublicRepoCond(userID int64) builder.Cond {
+	return builder.And(
+		builder.Eq{"`repository`.is_private": false},
+		builder.In("`repository`.owner_id",
+			builder.Select("`org_user`.org_id").
+				From("org_user").
+				Where(builder.Eq{"`org_user`.uid": userID}),
+		),
+	)
+}
+
+// userOrgPublicRepoCondPrivate returns the condition that one user could access all public repositories in private organizations
+func userOrgPublicRepoCondPrivate(userID int64) builder.Cond {
+	return builder.And(
+		builder.Eq{"`repository`.is_private": false},
+		builder.In("`repository`.owner_id",
+			builder.Select("`org_user`.org_id").
+				From("org_user").
+				Join("INNER", "`user`", "`user`.id = `org_user`.org_id").
+				Where(builder.Eq{
+					"`org_user`.uid":    userID,
+					"`user`.`type`":     user_model.UserTypeOrganization,
+					"`user`.visibility": structs.VisibleTypePrivate,
+				}),
+		),
+	)
+}
+
+// UserOrgPublicUnitRepoCond returns the condition that one user could access all public repositories in the special organization
+func UserOrgPublicUnitRepoCond(userID, orgID int64) builder.Cond {
+	return userOrgPublicRepoCond(userID).
+		And(builder.Eq{"`repository`.owner_id": orgID})
+}
+
+// SearchRepositoryCondition creates a query condition according search repository options
+func SearchRepositoryCondition(opts *SearchRepoOptions) builder.Cond {
+	cond := builder.NewCond()
+
+	if opts.Private {
+		if opts.Actor != nil && !opts.Actor.IsAdmin && opts.Actor.ID != opts.OwnerID {
+			// OK we're in the context of a User
+			cond = cond.And(AccessibleRepositoryCondition(opts.Actor, unit.TypeInvalid))
+		}
+	} else {
+		// Not looking at private organisations and users
+		// We should be able to see all non-private repositories that
+		// isn't in a private or limited organisation.
+		cond = cond.And(
+			builder.Eq{"is_private": false},
+			builder.NotIn("owner_id", builder.Select("id").From("`user`").Where(
+				builder.Or(builder.Eq{"visibility": structs.VisibleTypeLimited}, builder.Eq{"visibility": structs.VisibleTypePrivate}),
+			)))
+	}
+
+	if opts.IsPrivate.Has() {
+		cond = cond.And(builder.Eq{"is_private": opts.IsPrivate.Value()})
+	}
+
+	if opts.Template.Has() {
+		cond = cond.And(builder.Eq{"is_template": opts.Template.Value()})
+	}
+
+	// Restrict to starred repositories
+	if opts.StarredByID > 0 {
+		cond = cond.And(builder.In("id", builder.Select("repo_id").From("star").Where(builder.Eq{"uid": opts.StarredByID})))
+	}
+
+	// Restrict to watched repositories
+	if opts.WatchedByID > 0 {
+		cond = cond.And(builder.In("id", builder.Select("repo_id").From("watch").Where(builder.Eq{"user_id": opts.WatchedByID})))
+	}
+
+	// Restrict repositories to those the OwnerID owns or contributes to as per opts.Collaborate
+	if opts.OwnerID > 0 {
+		accessCond := builder.NewCond()
+		if !opts.Collaborate.Value() {
+			accessCond = builder.Eq{"owner_id": opts.OwnerID}
+		}
+
+		if opts.Collaborate.ValueOrDefault(true) {
+			// A Collaboration is:
+
+			collaborateCond := builder.NewCond()
+			// 1. Repository we don't own
+			collaborateCond = collaborateCond.And(builder.Neq{"owner_id": opts.OwnerID})
+			// 2. But we can see because of:
+			{
+				userAccessCond := builder.NewCond()
+				// A. We have unit independent access
+				userAccessCond = userAccessCond.Or(UserAccessRepoCond("`repository`.id", opts.OwnerID))
+				// B. We are in a team for
+				if opts.UnitType == unit.TypeInvalid {
+					userAccessCond = userAccessCond.Or(UserOrgTeamRepoCond("`repository`.id", opts.OwnerID))
+				} else {
+					userAccessCond = userAccessCond.Or(userOrgTeamUnitRepoCond("`repository`.id", opts.OwnerID, opts.UnitType))
+				}
+				// C. Public repositories in organizations that we are member of
+				userAccessCond = userAccessCond.Or(userOrgPublicRepoCondPrivate(opts.OwnerID))
+				collaborateCond = collaborateCond.And(userAccessCond)
+			}
+			if !opts.Private {
+				collaborateCond = collaborateCond.And(builder.Expr("owner_id NOT IN (SELECT org_id FROM org_user WHERE org_user.uid = ? AND org_user.is_public = ?)", opts.OwnerID, false))
+			}
+
+			accessCond = accessCond.Or(collaborateCond)
+		}
+
+		if opts.AllPublic {
+			accessCond = accessCond.Or(builder.Eq{"is_private": false}.And(builder.In("owner_id", builder.Select("`user`.id").From("`user`").Where(builder.Eq{"`user`.visibility": structs.VisibleTypePublic}))))
+		}
+
+		if opts.AllLimited {
+			accessCond = accessCond.Or(builder.Eq{"is_private": false}.And(builder.In("owner_id", builder.Select("`user`.id").From("`user`").Where(builder.Eq{"`user`.visibility": structs.VisibleTypeLimited}))))
+		}
+
+		cond = cond.And(accessCond)
+	}
+
+	if opts.TeamID > 0 {
+		cond = cond.And(builder.In("`repository`.id", builder.Select("`team_repo`.repo_id").From("team_repo").Where(builder.Eq{"`team_repo`.team_id": opts.TeamID})))
+	}
+
+	if opts.Keyword != "" {
+		// separate keyword
+		subQueryCond := builder.NewCond()
+		for _, v := range strings.Split(opts.Keyword, ",") {
+			if opts.TopicOnly {
+				subQueryCond = subQueryCond.Or(builder.Eq{"topic.name": strings.ToLower(v)})
+			} else {
+				subQueryCond = subQueryCond.Or(builder.Like{"topic.name", strings.ToLower(v)})
+			}
+		}
+		subQuery := builder.Select("repo_topic.repo_id").From("repo_topic").
+			Join("INNER", "topic", "topic.id = repo_topic.topic_id").
+			Where(subQueryCond).
+			GroupBy("repo_topic.repo_id")
+
+		keywordCond := builder.In("id", subQuery)
+		if !opts.TopicOnly {
+			likes := builder.NewCond()
+			for _, v := range strings.Split(opts.Keyword, ",") {
+				likes = likes.Or(builder.Like{"lower_name", strings.ToLower(v)})
+
+				// If the string looks like "org/repo", match against that pattern too
+				if opts.TeamID == 0 && strings.Count(opts.Keyword, "/") == 1 {
+					pieces := strings.Split(opts.Keyword, "/")
+					ownerName := pieces[0]
+					repoName := pieces[1]
+					likes = likes.Or(builder.And(builder.Like{"owner_name", strings.ToLower(ownerName)}, builder.Like{"lower_name", strings.ToLower(repoName)}))
+				}
+
+				if opts.IncludeDescription {
+					likes = likes.Or(builder.Like{"LOWER(description)", strings.ToLower(v)})
+				}
+			}
+			keywordCond = keywordCond.Or(likes)
+		}
+		cond = cond.And(keywordCond)
+	}
+
+	if opts.Language != "" {
+		cond = cond.And(builder.In("id", builder.
+			Select("repo_id").
+			From("language_stat").
+			Where(builder.Eq{"language": opts.Language}).And(builder.Eq{"is_primary": true})))
+	}
+
+	if opts.Fork.Has() || opts.OnlyShowRelevant {
+		if opts.OnlyShowRelevant && !opts.Fork.Has() {
+			cond = cond.And(builder.Eq{"is_fork": false})
+		} else {
+			cond = cond.And(builder.Eq{"is_fork": opts.Fork.Value()})
+		}
+	}
+
+	if opts.Mirror.Has() {
+		cond = cond.And(builder.Eq{"is_mirror": opts.Mirror.Value()})
+	}
+
+	if opts.Actor != nil && opts.Actor.IsRestricted {
+		cond = cond.And(AccessibleRepositoryCondition(opts.Actor, unit.TypeInvalid))
+	}
+
+	if opts.Archived.Has() {
+		cond = cond.And(builder.Eq{"is_archived": opts.Archived.Value()})
+	}
+
+	if opts.HasMilestones.Has() {
+		if opts.HasMilestones.Value() {
+			cond = cond.And(builder.Gt{"num_milestones": 0})
+		} else {
+			cond = cond.And(builder.Eq{"num_milestones": 0}.Or(builder.IsNull{"num_milestones"}))
+		}
+	}
+
+	if opts.OnlyShowRelevant {
+		// Only show a repo that has at least a topic, an icon, or a description
+		subQueryCond := builder.NewCond()
+
+		// Topic checking. Topics are present.
+		if setting.Database.Type.IsPostgreSQL() { // postgres stores the topics as json and not as text
+			subQueryCond = subQueryCond.Or(builder.And(builder.NotNull{"topics"}, builder.Neq{"(topics)::text": "[]"}))
+		} else {
+			subQueryCond = subQueryCond.Or(builder.And(builder.Neq{"topics": "null"}, builder.Neq{"topics": "[]"}))
+		}
+
+		// Description checking. Description not empty
+		subQueryCond = subQueryCond.Or(builder.Neq{"description": ""})
+
+		// Repo has a avatar
+		subQueryCond = subQueryCond.Or(builder.Neq{"avatar": ""})
+
+		// Always hide repo's that are empty
+		subQueryCond = subQueryCond.And(builder.Eq{"is_empty": false})
+
+		cond = cond.And(subQueryCond)
+	}
+
+	return cond
+}
+
+// SearchRepository returns repositories based on search options,
+// it returns results in given range and number of total results.
+func SearchRepository(ctx context.Context, opts *SearchRepoOptions) (RepositoryList, int64, error) {
+	cond := SearchRepositoryCondition(opts)
+	return SearchRepositoryByCondition(ctx, opts, cond, true)
+}
+
+// CountRepository counts repositories based on search options,
+func CountRepository(ctx context.Context, opts *SearchRepoOptions) (int64, error) {
+	return db.GetEngine(ctx).Where(SearchRepositoryCondition(opts)).Count(new(Repository))
+}
+
+// SearchRepositoryByCondition search repositories by condition
+func SearchRepositoryByCondition(ctx context.Context, opts *SearchRepoOptions, cond builder.Cond, loadAttributes bool) (RepositoryList, int64, error) {
+	sess, count, err := searchRepositoryByCondition(ctx, opts, cond)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	defaultSize := 50
+	if opts.PageSize > 0 {
+		defaultSize = opts.PageSize
+	}
+	repos := make(RepositoryList, 0, defaultSize)
+	if err := sess.Find(&repos); err != nil {
+		return nil, 0, fmt.Errorf("Repo: %w", err)
+	}
+
+	if opts.PageSize <= 0 {
+		count = int64(len(repos))
+	}
+
+	if loadAttributes {
+		if err := repos.LoadAttributes(ctx); err != nil {
+			return nil, 0, fmt.Errorf("LoadAttributes: %w", err)
+		}
+	}
+
+	return repos, count, nil
+}
+
+func searchRepositoryByCondition(ctx context.Context, opts *SearchRepoOptions, cond builder.Cond) (db.Engine, int64, error) {
+	if opts.Page <= 0 {
+		opts.Page = 1
+	}
+
+	if len(opts.OrderBy) == 0 {
+		opts.OrderBy = db.SearchOrderByAlphabetically
+	}
+
+	args := make([]any, 0)
+	if opts.PriorityOwnerID > 0 {
+		opts.OrderBy = db.SearchOrderBy(fmt.Sprintf("CASE WHEN owner_id = ? THEN 0 ELSE owner_id END, %s", opts.OrderBy))
+		args = append(args, opts.PriorityOwnerID)
+	} else if strings.Count(opts.Keyword, "/") == 1 {
+		// With "owner/repo" search times, prioritise results which match the owner field
+		orgName := strings.Split(opts.Keyword, "/")[0]
+		opts.OrderBy = db.SearchOrderBy(fmt.Sprintf("CASE WHEN owner_name LIKE ? THEN 0 ELSE 1 END, %s", opts.OrderBy))
+		args = append(args, orgName)
+	}
+
+	sess := db.GetEngine(ctx)
+
+	var count int64
+	if opts.PageSize > 0 {
+		var err error
+		count, err = sess.
+			Where(cond).
+			Count(new(Repository))
+		if err != nil {
+			return nil, 0, fmt.Errorf("Count: %w", err)
+		}
+	}
+
+	sess = sess.Where(cond).OrderBy(opts.OrderBy.String(), args...)
+	if opts.PageSize > 0 {
+		sess = sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	return sess, count, nil
+}
+
+// SearchRepositoryIDsByCondition search repository IDs by given condition.
+func SearchRepositoryIDsByCondition(ctx context.Context, cond builder.Cond) ([]int64, error) {
+	repoIDs := make([]int64, 0, 10)
+	return repoIDs, db.GetEngine(ctx).
+		Table("repository").
+		Cols("id").
+		Where(cond).
+		Find(&repoIDs)
+}
+
+// AccessibleRepositoryCondition takes a user a returns a condition for checking if a repository is accessible
+func AccessibleRepositoryCondition(user *user_model.User, unitType unit.Type) builder.Cond {
+	cond := builder.NewCond()
+
+	if user == nil || !user.IsRestricted || user.ID <= 0 {
+		orgVisibilityLimit := []structs.VisibleType{structs.VisibleTypePrivate}
+		if user == nil || user.ID <= 0 {
+			orgVisibilityLimit = append(orgVisibilityLimit, structs.VisibleTypeLimited)
+		}
+		// 1. Be able to see all non-private repositories that either:
+		cond = cond.Or(builder.And(
+			builder.Eq{"`repository`.is_private": false},
+			// 2. Aren't in an private organisation/user or limited organisation/user if the doer is not logged in.
+			builder.NotIn("`repository`.owner_id", builder.Select("id").From("`user`").Where(
+				builder.In("visibility", orgVisibilityLimit)))))
+	}
+
+	if user != nil {
+		// 2. Be able to see all repositories that we have unit independent access to
+		// 3. Be able to see all repositories through team membership(s)
+		if unitType == unit.TypeInvalid {
+			// Regardless of UnitType
+			cond = cond.Or(
+				UserAccessRepoCond("`repository`.id", user.ID),
+				UserOrgTeamRepoCond("`repository`.id", user.ID),
+			)
+		} else {
+			// For a specific UnitType
+			cond = cond.Or(
+				UserCollaborationRepoCond("`repository`.id", user.ID),
+				userOrgTeamUnitRepoCond("`repository`.id", user.ID, unitType),
+			)
+		}
+		// 4. Repositories that we directly own
+		cond = cond.Or(builder.Eq{"`repository`.owner_id": user.ID})
+		if !user.IsRestricted {
+			// 5. Be able to see all public repos in private organizations that we are an org_user of
+			cond = cond.Or(userOrgPublicRepoCond(user.ID))
+		}
+	}
+
+	return cond
+}
+
+// SearchRepositoryByName takes keyword and part of repository name to search,
+// it returns results in given range and number of total results.
+func SearchRepositoryByName(ctx context.Context, opts *SearchRepoOptions) (RepositoryList, int64, error) {
+	opts.IncludeDescription = false
+	return SearchRepository(ctx, opts)
+}
+
+// SearchRepositoryIDs takes keyword and part of repository name to search,
+// it returns results in given range and number of total results.
+func SearchRepositoryIDs(ctx context.Context, opts *SearchRepoOptions) ([]int64, int64, error) {
+	opts.IncludeDescription = false
+
+	cond := SearchRepositoryCondition(opts)
+
+	sess, count, err := searchRepositoryByCondition(ctx, opts, cond)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	defaultSize := 50
+	if opts.PageSize > 0 {
+		defaultSize = opts.PageSize
+	}
+
+	ids := make([]int64, 0, defaultSize)
+	err = sess.Select("id").Table("repository").Find(&ids)
+	if opts.PageSize <= 0 {
+		count = int64(len(ids))
+	}
+
+	return ids, count, err
+}
+
+// AccessibleRepoIDsQuery queries accessible repository ids. Usable as a subquery wherever repo ids need to be filtered.
+func AccessibleRepoIDsQuery(user *user_model.User) *builder.Builder {
+	// NB: Please note this code needs to still work if user is nil
+	return builder.Select("id").From("repository").Where(AccessibleRepositoryCondition(user, unit.TypeInvalid))
+}
+
+// FindUserCodeAccessibleRepoIDs finds all at Code level accessible repositories' ID by the user's id
+func FindUserCodeAccessibleRepoIDs(ctx context.Context, user *user_model.User) ([]int64, error) {
+	return SearchRepositoryIDsByCondition(ctx, AccessibleRepositoryCondition(user, unit.TypeCode))
+}
+
+// FindUserCodeAccessibleOwnerRepoIDs finds all repository IDs for the given owner whose code the user can see.
+func FindUserCodeAccessibleOwnerRepoIDs(ctx context.Context, ownerID int64, user *user_model.User) ([]int64, error) {
+	return SearchRepositoryIDsByCondition(ctx, builder.NewCond().And(
+		builder.Eq{"owner_id": ownerID},
+		AccessibleRepositoryCondition(user, unit.TypeCode),
+	))
+}
+
+// GetUserRepositories returns a list of repositories of given user.
+func GetUserRepositories(ctx context.Context, opts *SearchRepoOptions) (RepositoryList, int64, error) {
+	if len(opts.OrderBy) == 0 {
+		opts.OrderBy = "updated_unix DESC"
+	}
+
+	cond := builder.NewCond()
+	if opts.Actor == nil {
+		return nil, 0, util.NewInvalidArgumentErrorf("GetUserRepositories: Actor is needed but not given")
+	}
+	cond = cond.And(builder.Eq{"owner_id": opts.Actor.ID})
+	if !opts.Private {
+		cond = cond.And(builder.Eq{"is_private": false})
+	}
+
+	if len(opts.LowerNames) > 0 {
+		cond = cond.And(builder.In("lower_name", opts.LowerNames))
+	}
+
+	sess := db.GetEngine(ctx)
+
+	count, err := sess.Where(cond).Count(new(Repository))
+	if err != nil {
+		return nil, 0, fmt.Errorf("Count: %w", err)
+	}
+
+	sess = sess.Where(cond).OrderBy(opts.OrderBy.String())
+	repos := make(RepositoryList, 0, opts.PageSize)
+	return repos, count, db.SetSessionPagination(sess, opts).Find(&repos)
+}
diff --git a/models/repo/repo_list_test.go b/models/repo/repo_list_test.go
new file mode 100644
index 0000000..8c13f38
--- /dev/null
+++ b/models/repo/repo_list_test.go
@@ -0,0 +1,450 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"path/filepath"
+	"slices"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func getTestCases() []struct {
+	name  string
+	opts  *repo_model.SearchRepoOptions
+	count int
+} {
+	testCases := []struct {
+		name  string
+		opts  *repo_model.SearchRepoOptions
+		count int
+	}{
+		{
+			name:  "PublicRepositoriesByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{PageSize: 10}, Collaborate: optional.Some(false)},
+			count: 7,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, Private: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesByNameWithPagesizeLimitFirstPage",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 1, PageSize: 5}, Private: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesByNameWithPagesizeLimitSecondPage",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 2, PageSize: 5}, Private: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesByNameWithPagesizeLimitThirdPage",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 3, PageSize: 5}, Private: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesByNameWithPagesizeLimitFourthPage",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 3, PageSize: 5}, Private: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "PublicRepositoriesOfUser",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, Collaborate: optional.Some(false)},
+			count: 2,
+		},
+		{
+			name:  "PublicRepositoriesOfUser2",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 18, Collaborate: optional.Some(false)},
+			count: 0,
+		},
+		{
+			name:  "PublicRepositoriesOfOrg3",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 20, Collaborate: optional.Some(false)},
+			count: 2,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfUser",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, Private: true, Collaborate: optional.Some(false)},
+			count: 4,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfUser2",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 18, Private: true, Collaborate: optional.Some(false)},
+			count: 0,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfOrg3",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 20, Private: true, Collaborate: optional.Some(false)},
+			count: 4,
+		},
+		{
+			name:  "PublicRepositoriesOfUserIncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15},
+			count: 5,
+		},
+		{
+			name:  "PublicRepositoriesOfUser2IncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 18},
+			count: 1,
+		},
+		{
+			name:  "PublicRepositoriesOfOrg3IncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 20},
+			count: 3,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfUserIncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, Private: true},
+			count: 9,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfUser2IncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 18, Private: true},
+			count: 4,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfOrg3IncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 20, Private: true},
+			count: 7,
+		},
+		{
+			name:  "PublicRepositoriesOfOrganization",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 17, Collaborate: optional.Some(false)},
+			count: 1,
+		},
+		{
+			name:  "PublicAndPrivateRepositoriesOfOrganization",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 17, Private: true, Collaborate: optional.Some(false)},
+			count: 2,
+		},
+		{
+			name:  "AllPublic/PublicRepositoriesByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{PageSize: 10}, AllPublic: true, Collaborate: optional.Some(false)},
+			count: 7,
+		},
+		{
+			name:  "AllPublic/PublicAndPrivateRepositoriesByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "big_test_", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, Private: true, AllPublic: true, Collaborate: optional.Some(false)},
+			count: 14,
+		},
+		{
+			name:  "AllPublic/PublicRepositoriesOfUserIncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, AllPublic: true, Template: optional.Some(false)},
+			count: 35,
+		},
+		{
+			name:  "AllPublic/PublicAndPrivateRepositoriesOfUserIncludingCollaborative",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, Private: true, AllPublic: true, AllLimited: true, Template: optional.Some(false)},
+			count: 40,
+		},
+		{
+			name:  "AllPublic/PublicAndPrivateRepositoriesOfUserIncludingCollaborativeByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "test", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 15, Private: true, AllPublic: true},
+			count: 16,
+		},
+		{
+			name:  "AllPublic/PublicAndPrivateRepositoriesOfUser2IncludingCollaborativeByName",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "test", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 18, Private: true, AllPublic: true},
+			count: 14,
+		},
+		{
+			name:  "AllPublic/PublicRepositoriesOfOrganization",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, OwnerID: 17, AllPublic: true, Collaborate: optional.Some(false), Template: optional.Some(false)},
+			count: 35,
+		},
+		{
+			name:  "AllTemplates",
+			opts:  &repo_model.SearchRepoOptions{ListOptions: db.ListOptions{Page: 1, PageSize: 10}, Template: optional.Some(true)},
+			count: 2,
+		},
+		{
+			name:  "OwnerSlashRepoSearch",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "user/repo2", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, Private: true, OwnerID: 0},
+			count: 2,
+		},
+		{
+			name:  "OwnerSlashSearch",
+			opts:  &repo_model.SearchRepoOptions{Keyword: "user20/", ListOptions: db.ListOptions{Page: 1, PageSize: 10}, Private: true, OwnerID: 0},
+			count: 4,
+		},
+	}
+
+	return testCases
+}
+
+func TestSearchRepository(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// test search public repository on explore page
+	repos, count, err := repo_model.SearchRepositoryByName(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:     "repo_12",
+		Collaborate: optional.Some(false),
+	})
+
+	require.NoError(t, err)
+	if assert.Len(t, repos, 1) {
+		assert.Equal(t, "test_repo_12", repos[0].Name)
+	}
+	assert.Equal(t, int64(1), count)
+
+	repos, count, err = repo_model.SearchRepositoryByName(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:     "test_repo",
+		Collaborate: optional.Some(false),
+	})
+
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), count)
+	assert.Len(t, repos, 2)
+
+	// test search private repository on explore page
+	repos, count, err = repo_model.SearchRepositoryByName(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:     "repo_13",
+		Private:     true,
+		Collaborate: optional.Some(false),
+	})
+
+	require.NoError(t, err)
+	if assert.Len(t, repos, 1) {
+		assert.Equal(t, "test_repo_13", repos[0].Name)
+	}
+	assert.Equal(t, int64(1), count)
+
+	repos, count, err = repo_model.SearchRepositoryByName(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:     "test_repo",
+		Private:     true,
+		Collaborate: optional.Some(false),
+	})
+
+	require.NoError(t, err)
+	assert.Equal(t, int64(3), count)
+	assert.Len(t, repos, 3)
+
+	// Test non existing owner
+	repos, count, err = repo_model.SearchRepositoryByName(db.DefaultContext, &repo_model.SearchRepoOptions{OwnerID: unittest.NonexistentID})
+
+	require.NoError(t, err)
+	assert.Empty(t, repos)
+	assert.Equal(t, int64(0), count)
+
+	// Test search within description
+	repos, count, err = repo_model.SearchRepository(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:            "description_14",
+		Collaborate:        optional.Some(false),
+		IncludeDescription: true,
+	})
+
+	require.NoError(t, err)
+	if assert.Len(t, repos, 1) {
+		assert.Equal(t, "test_repo_14", repos[0].Name)
+	}
+	assert.Equal(t, int64(1), count)
+
+	// Test NOT search within description
+	repos, count, err = repo_model.SearchRepository(db.DefaultContext, &repo_model.SearchRepoOptions{
+		ListOptions: db.ListOptions{
+			Page:     1,
+			PageSize: 10,
+		},
+		Keyword:            "description_14",
+		Collaborate:        optional.Some(false),
+		IncludeDescription: false,
+	})
+
+	require.NoError(t, err)
+	assert.Empty(t, repos)
+	assert.Equal(t, int64(0), count)
+
+	testCases := getTestCases()
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			repos, count, err := repo_model.SearchRepositoryByName(db.DefaultContext, testCase.opts)
+
+			require.NoError(t, err)
+			assert.Equal(t, int64(testCase.count), count)
+
+			page := testCase.opts.Page
+			if page <= 0 {
+				page = 1
+			}
+			expectedLen := testCase.opts.PageSize
+			if testCase.opts.PageSize*page > testCase.count+testCase.opts.PageSize {
+				expectedLen = 0
+			} else if testCase.opts.PageSize*page > testCase.count {
+				expectedLen = testCase.count % testCase.opts.PageSize
+			}
+			if assert.Len(t, repos, expectedLen) {
+				for _, repo := range repos {
+					assert.NotEmpty(t, repo.Name)
+
+					if len(testCase.opts.Keyword) > 0 {
+						// Keyword match condition is different for search terms of form "owner/repo"
+						if strings.Count(testCase.opts.Keyword, "/") == 1 {
+							// May still match as a whole...
+							wholeMatch := strings.Contains(repo.Name, testCase.opts.Keyword)
+
+							pieces := strings.Split(testCase.opts.Keyword, "/")
+							ownerName := pieces[0]
+							repoName := pieces[1]
+							// ... or match in parts
+							splitMatch := strings.Contains(repo.OwnerName, ownerName) && strings.Contains(repo.Name, repoName)
+
+							assert.True(t, wholeMatch || splitMatch, "Keyword '%s' does not match repo '%s/%s'", testCase.opts.Keyword, repo.Owner.Name, repo.Name)
+						} else {
+							assert.Contains(t, repo.Name, testCase.opts.Keyword)
+						}
+					}
+
+					if !testCase.opts.Private {
+						assert.False(t, repo.IsPrivate)
+					}
+
+					if testCase.opts.Fork.Value() && testCase.opts.Mirror.Value() {
+						assert.True(t, repo.IsFork && repo.IsMirror)
+					} else {
+						if testCase.opts.Fork.Has() {
+							assert.Equal(t, testCase.opts.Fork.Value(), repo.IsFork)
+						}
+
+						if testCase.opts.Mirror.Has() {
+							assert.Equal(t, testCase.opts.Mirror.Value(), repo.IsMirror)
+						}
+					}
+
+					if testCase.opts.OwnerID > 0 && !testCase.opts.AllPublic {
+						if testCase.opts.Collaborate.Has() {
+							if testCase.opts.Collaborate.Value() {
+								assert.NotEqual(t, testCase.opts.OwnerID, repo.Owner.ID)
+							} else {
+								assert.Equal(t, testCase.opts.OwnerID, repo.Owner.ID)
+							}
+						}
+					}
+				}
+			}
+		})
+	}
+}
+
+func TestCountRepository(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testCases := getTestCases()
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			count, err := repo_model.CountRepository(db.DefaultContext, testCase.opts)
+
+			require.NoError(t, err)
+			assert.Equal(t, int64(testCase.count), count)
+		})
+	}
+}
+
+func TestSearchRepositoryByTopicName(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testCases := []struct {
+		name  string
+		opts  *repo_model.SearchRepoOptions
+		count int
+	}{
+		{
+			name:  "AllPublic/SearchPublicRepositoriesFromTopicAndName",
+			opts:  &repo_model.SearchRepoOptions{OwnerID: 21, AllPublic: true, Keyword: "graphql"},
+			count: 2,
+		},
+		{
+			name:  "AllPublic/OnlySearchPublicRepositoriesFromTopic",
+			opts:  &repo_model.SearchRepoOptions{OwnerID: 21, AllPublic: true, Keyword: "graphql", TopicOnly: true},
+			count: 1,
+		},
+		{
+			name:  "AllPublic/OnlySearchMultipleKeywordPublicRepositoriesFromTopic",
+			opts:  &repo_model.SearchRepoOptions{OwnerID: 21, AllPublic: true, Keyword: "graphql,golang", TopicOnly: true},
+			count: 2,
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.name, func(t *testing.T) {
+			_, count, err := repo_model.SearchRepositoryByName(db.DefaultContext, testCase.opts)
+			require.NoError(t, err)
+			assert.Equal(t, int64(testCase.count), count)
+		})
+	}
+}
+
+func TestSearchRepositoryIDsByCondition(t *testing.T) {
+	defer unittest.OverrideFixtures(
+		unittest.FixturesOptions{
+			Dir:  filepath.Join(setting.AppWorkPath, "models/fixtures/"),
+			Base: setting.AppWorkPath,
+			Dirs: []string{"models/repo/TestSearchRepositoryIDsByCondition/"},
+		},
+	)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+	// Sanity check of the database
+	limitedUser := unittest.AssertExistsAndLoadBean(t, &user.User{ID: 33, Visibility: structs.VisibleTypeLimited})
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1001, OwnerID: limitedUser.ID})
+
+	testCases := []struct {
+		user    *user.User
+		repoIDs []int64
+	}{
+		{
+			user:    nil,
+			repoIDs: []int64{1, 4, 8, 9, 10, 11, 12, 14, 17, 18, 21, 23, 25, 27, 29, 32, 33, 34, 35, 36, 37, 42, 44, 45, 46, 47, 48, 49, 50, 51, 53, 57, 58, 60, 61, 62, 1059},
+		},
+		{
+			user:    unittest.AssertExistsAndLoadBean(t, &user.User{ID: 4}),
+			repoIDs: []int64{1, 3, 4, 8, 9, 10, 11, 12, 14, 17, 18, 21, 23, 25, 27, 29, 32, 33, 34, 35, 36, 37, 38, 40, 42, 44, 45, 46, 47, 48, 49, 50, 51, 53, 57, 58, 60, 61, 62, 1001, 1059},
+		},
+		{
+			user:    unittest.AssertExistsAndLoadBean(t, &user.User{ID: 5}),
+			repoIDs: []int64{1, 4, 8, 9, 10, 11, 12, 14, 17, 18, 21, 23, 25, 27, 29, 32, 33, 34, 35, 36, 37, 38, 40, 42, 44, 45, 46, 47, 48, 49, 50, 51, 53, 57, 58, 60, 61, 62, 1001, 1059},
+		},
+	}
+
+	for _, testCase := range testCases {
+		repoIDs, err := repo_model.FindUserCodeAccessibleRepoIDs(db.DefaultContext, testCase.user)
+		require.NoError(t, err)
+
+		slices.Sort(repoIDs)
+		assert.EqualValues(t, testCase.repoIDs, repoIDs)
+	}
+}
diff --git a/models/repo/repo_repository.go b/models/repo/repo_repository.go
new file mode 100644
index 0000000..6780165
--- /dev/null
+++ b/models/repo/repo_repository.go
@@ -0,0 +1,60 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func init() {
+	db.RegisterModel(new(FollowingRepo))
+}
+
+func FindFollowingReposByRepoID(ctx context.Context, repoID int64) ([]*FollowingRepo, error) {
+	maxFollowingRepos := 10
+	sess := db.GetEngine(ctx).Where("repo_id=?", repoID)
+	sess = sess.Limit(maxFollowingRepos, 0)
+	followingRepoList := make([]*FollowingRepo, 0, maxFollowingRepos)
+	err := sess.Find(&followingRepoList)
+	if err != nil {
+		return make([]*FollowingRepo, 0, maxFollowingRepos), err
+	}
+	for _, followingRepo := range followingRepoList {
+		if res, err := validation.IsValid(*followingRepo); !res {
+			return make([]*FollowingRepo, 0, maxFollowingRepos), err
+		}
+	}
+	return followingRepoList, nil
+}
+
+func StoreFollowingRepos(ctx context.Context, localRepoID int64, followingRepoList []*FollowingRepo) error {
+	for _, followingRepo := range followingRepoList {
+		if res, err := validation.IsValid(*followingRepo); !res {
+			return err
+		}
+	}
+
+	// Begin transaction
+	ctx, committer, err := db.TxContext((ctx))
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	_, err = db.GetEngine(ctx).Where("repo_id=?", localRepoID).Delete(FollowingRepo{})
+	if err != nil {
+		return err
+	}
+	for _, followingRepo := range followingRepoList {
+		_, err = db.GetEngine(ctx).Insert(followingRepo)
+		if err != nil {
+			return err
+		}
+	}
+
+	// Commit transaction
+	return committer.Commit()
+}
diff --git a/models/repo/repo_test.go b/models/repo/repo_test.go
new file mode 100644
index 0000000..56b8479
--- /dev/null
+++ b/models/repo/repo_test.go
@@ -0,0 +1,230 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+var (
+	countRepospts        = repo_model.CountRepositoryOptions{OwnerID: 10}
+	countReposptsPublic  = repo_model.CountRepositoryOptions{OwnerID: 10, Private: optional.Some(false)}
+	countReposptsPrivate = repo_model.CountRepositoryOptions{OwnerID: 10, Private: optional.Some(true)}
+)
+
+func TestGetRepositoryCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	ctx := db.DefaultContext
+	count, err1 := repo_model.CountRepositories(ctx, countRepospts)
+	privateCount, err2 := repo_model.CountRepositories(ctx, countReposptsPrivate)
+	publicCount, err3 := repo_model.CountRepositories(ctx, countReposptsPublic)
+	require.NoError(t, err1)
+	require.NoError(t, err2)
+	require.NoError(t, err3)
+	assert.Equal(t, int64(3), count)
+	assert.Equal(t, privateCount+publicCount, count)
+}
+
+func TestGetPublicRepositoryCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := repo_model.CountRepositories(db.DefaultContext, countReposptsPublic)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), count)
+}
+
+func TestGetPrivateRepositoryCount(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := repo_model.CountRepositories(db.DefaultContext, countReposptsPrivate)
+	require.NoError(t, err)
+	assert.Equal(t, int64(2), count)
+}
+
+func TestRepoAPIURL(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 10})
+
+	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user12/repo10", repo.APIURL())
+}
+
+func TestWatchRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	const repoID = 3
+	const userID = 2
+
+	require.NoError(t, repo_model.WatchRepo(db.DefaultContext, userID, repoID, true))
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Watch{RepoID: repoID, UserID: userID})
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: repoID})
+
+	require.NoError(t, repo_model.WatchRepo(db.DefaultContext, userID, repoID, false))
+	unittest.AssertNotExistsBean(t, &repo_model.Watch{RepoID: repoID, UserID: userID})
+	unittest.CheckConsistencyFor(t, &repo_model.Repository{ID: repoID})
+}
+
+func TestMetas(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := &repo_model.Repository{Name: "testRepo"}
+	repo.Owner = &user_model.User{Name: "testOwner"}
+	repo.OwnerName = repo.Owner.Name
+
+	repo.Units = nil
+
+	metas := repo.ComposeMetas(db.DefaultContext)
+	assert.Equal(t, "testRepo", metas["repo"])
+	assert.Equal(t, "testOwner", metas["user"])
+
+	externalTracker := repo_model.RepoUnit{
+		Type: unit.TypeExternalTracker,
+		Config: &repo_model.ExternalTrackerConfig{
+			ExternalTrackerFormat: "https://someurl.com/{user}/{repo}/{issue}",
+		},
+	}
+
+	testSuccess := func(expectedStyle string) {
+		repo.Units = []*repo_model.RepoUnit{&externalTracker}
+		repo.RenderingMetas = nil
+		metas := repo.ComposeMetas(db.DefaultContext)
+		assert.Equal(t, expectedStyle, metas["style"])
+		assert.Equal(t, "testRepo", metas["repo"])
+		assert.Equal(t, "testOwner", metas["user"])
+		assert.Equal(t, "https://someurl.com/{user}/{repo}/{issue}", metas["format"])
+	}
+
+	testSuccess(markup.IssueNameStyleNumeric)
+
+	externalTracker.ExternalTrackerConfig().ExternalTrackerStyle = markup.IssueNameStyleAlphanumeric
+	testSuccess(markup.IssueNameStyleAlphanumeric)
+
+	externalTracker.ExternalTrackerConfig().ExternalTrackerStyle = markup.IssueNameStyleNumeric
+	testSuccess(markup.IssueNameStyleNumeric)
+
+	externalTracker.ExternalTrackerConfig().ExternalTrackerStyle = markup.IssueNameStyleRegexp
+	testSuccess(markup.IssueNameStyleRegexp)
+
+	repo, err := repo_model.GetRepositoryByID(db.DefaultContext, 3)
+	require.NoError(t, err)
+
+	metas = repo.ComposeMetas(db.DefaultContext)
+	assert.Contains(t, metas, "org")
+	assert.Contains(t, metas, "teams")
+	assert.Equal(t, "org3", metas["org"])
+	assert.Equal(t, ",owners,team1,", metas["teams"])
+}
+
+func TestGetRepositoryByURL(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	t.Run("InvalidPath", func(t *testing.T) {
+		repo, err := repo_model.GetRepositoryByURL(db.DefaultContext, "something")
+
+		assert.Nil(t, repo)
+		require.Error(t, err)
+	})
+
+	t.Run("ValidHttpURL", func(t *testing.T) {
+		test := func(t *testing.T, url string) {
+			repo, err := repo_model.GetRepositoryByURL(db.DefaultContext, url)
+
+			assert.NotNil(t, repo)
+			require.NoError(t, err)
+
+			assert.Equal(t, int64(2), repo.ID)
+			assert.Equal(t, int64(2), repo.OwnerID)
+		}
+
+		test(t, "https://try.gitea.io/user2/repo2")
+		test(t, "https://try.gitea.io/user2/repo2.git")
+	})
+
+	t.Run("ValidGitSshURL", func(t *testing.T) {
+		test := func(t *testing.T, url string) {
+			repo, err := repo_model.GetRepositoryByURL(db.DefaultContext, url)
+
+			assert.NotNil(t, repo)
+			require.NoError(t, err)
+
+			assert.Equal(t, int64(2), repo.ID)
+			assert.Equal(t, int64(2), repo.OwnerID)
+		}
+
+		test(t, "git+ssh://sshuser@try.gitea.io/user2/repo2")
+		test(t, "git+ssh://sshuser@try.gitea.io/user2/repo2.git")
+
+		test(t, "git+ssh://try.gitea.io/user2/repo2")
+		test(t, "git+ssh://try.gitea.io/user2/repo2.git")
+	})
+
+	t.Run("ValidImplicitSshURL", func(t *testing.T) {
+		test := func(t *testing.T, url string) {
+			repo, err := repo_model.GetRepositoryByURL(db.DefaultContext, url)
+
+			assert.NotNil(t, repo)
+			require.NoError(t, err)
+
+			assert.Equal(t, int64(2), repo.ID)
+			assert.Equal(t, int64(2), repo.OwnerID)
+		}
+
+		test(t, "sshuser@try.gitea.io:user2/repo2")
+		test(t, "sshuser@try.gitea.io:user2/repo2.git")
+
+		test(t, "try.gitea.io:user2/repo2")
+		test(t, "try.gitea.io:user2/repo2.git")
+	})
+}
+
+func TestComposeSSHCloneURL(t *testing.T) {
+	defer test.MockVariableValue(&setting.SSH, setting.SSH)()
+	defer test.MockVariableValue(&setting.Repository, setting.Repository)()
+
+	setting.SSH.User = "git"
+
+	// test SSH_DOMAIN
+	setting.SSH.Domain = "domain"
+	setting.SSH.Port = 22
+	setting.Repository.UseCompatSSHURI = false
+	assert.Equal(t, "git@domain:user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.Repository.UseCompatSSHURI = true
+	assert.Equal(t, "ssh://git@domain/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	// test SSH_DOMAIN while use non-standard SSH port
+	setting.SSH.Port = 123
+	setting.Repository.UseCompatSSHURI = false
+	assert.Equal(t, "ssh://git@domain:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.Repository.UseCompatSSHURI = true
+	assert.Equal(t, "ssh://git@domain:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+
+	// test IPv6 SSH_DOMAIN
+	setting.Repository.UseCompatSSHURI = false
+	setting.SSH.Domain = "::1"
+	setting.SSH.Port = 22
+	assert.Equal(t, "git@[::1]:user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.SSH.Port = 123
+	assert.Equal(t, "ssh://git@[::1]:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+}
+
+func TestAPActorID(t *testing.T) {
+	repo := repo_model.Repository{ID: 1}
+	url := repo.APActorID()
+	expected := "https://try.gitea.io/api/v1/activitypub/repository-id/1"
+	if url != expected {
+		t.Errorf("unexpected APActorID, expected: %q, actual: %q", expected, url)
+	}
+}
diff --git a/models/repo/repo_unit.go b/models/repo/repo_unit.go
new file mode 100644
index 0000000..ed55384
--- /dev/null
+++ b/models/repo/repo_unit.go
@@ -0,0 +1,317 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/convert"
+)
+
+// ErrUnitTypeNotExist represents a "UnitTypeNotExist" kind of error.
+type ErrUnitTypeNotExist struct {
+	UT unit.Type
+}
+
+// IsErrUnitTypeNotExist checks if an error is a ErrUnitNotExist.
+func IsErrUnitTypeNotExist(err error) bool {
+	_, ok := err.(ErrUnitTypeNotExist)
+	return ok
+}
+
+func (err ErrUnitTypeNotExist) Error() string {
+	return fmt.Sprintf("Unit type does not exist: %s", err.UT.String())
+}
+
+func (err ErrUnitTypeNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// RepoUnitAccessMode specifies the users access mode to a repo unit
+type UnitAccessMode int
+
+const (
+	// UnitAccessModeUnset - no unit mode set
+	UnitAccessModeUnset UnitAccessMode = iota // 0
+	// UnitAccessModeNone no access
+	UnitAccessModeNone // 1
+	// UnitAccessModeRead read access
+	UnitAccessModeRead // 2
+	// UnitAccessModeWrite write access
+	UnitAccessModeWrite // 3
+)
+
+func (mode UnitAccessMode) ToAccessMode(modeIfUnset perm.AccessMode) perm.AccessMode {
+	switch mode {
+	case UnitAccessModeUnset:
+		return modeIfUnset
+	case UnitAccessModeNone:
+		return perm.AccessModeNone
+	case UnitAccessModeRead:
+		return perm.AccessModeRead
+	case UnitAccessModeWrite:
+		return perm.AccessModeWrite
+	default:
+		return perm.AccessModeNone
+	}
+}
+
+// RepoUnit describes all units of a repository
+type RepoUnit struct { //revive:disable-line:exported
+	ID                 int64
+	RepoID             int64              `xorm:"INDEX(s)"`
+	Type               unit.Type          `xorm:"INDEX(s)"`
+	Config             convert.Conversion `xorm:"TEXT"`
+	CreatedUnix        timeutil.TimeStamp `xorm:"INDEX CREATED"`
+	DefaultPermissions UnitAccessMode     `xorm:"NOT NULL DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoUnit))
+}
+
+// UnitConfig describes common unit config
+type UnitConfig struct{}
+
+// FromDB fills up a UnitConfig from serialized format.
+func (cfg *UnitConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a UnitConfig to a serialized format.
+func (cfg *UnitConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// ExternalWikiConfig describes external wiki config
+type ExternalWikiConfig struct {
+	ExternalWikiURL string
+}
+
+// FromDB fills up a ExternalWikiConfig from serialized format.
+func (cfg *ExternalWikiConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a ExternalWikiConfig to a serialized format.
+func (cfg *ExternalWikiConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// ExternalTrackerConfig describes external tracker config
+type ExternalTrackerConfig struct {
+	ExternalTrackerURL           string
+	ExternalTrackerFormat        string
+	ExternalTrackerStyle         string
+	ExternalTrackerRegexpPattern string
+}
+
+// FromDB fills up a ExternalTrackerConfig from serialized format.
+func (cfg *ExternalTrackerConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a ExternalTrackerConfig to a serialized format.
+func (cfg *ExternalTrackerConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// IssuesConfig describes issues config
+type IssuesConfig struct {
+	EnableTimetracker                bool
+	AllowOnlyContributorsToTrackTime bool
+	EnableDependencies               bool
+}
+
+// FromDB fills up a IssuesConfig from serialized format.
+func (cfg *IssuesConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a IssuesConfig to a serialized format.
+func (cfg *IssuesConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// PullRequestsConfig describes pull requests config
+type PullRequestsConfig struct {
+	IgnoreWhitespaceConflicts     bool
+	AllowMerge                    bool
+	AllowRebase                   bool
+	AllowRebaseMerge              bool
+	AllowSquash                   bool
+	AllowFastForwardOnly          bool
+	AllowManualMerge              bool
+	AutodetectManualMerge         bool
+	AllowRebaseUpdate             bool
+	DefaultDeleteBranchAfterMerge bool
+	DefaultMergeStyle             MergeStyle
+	DefaultAllowMaintainerEdit    bool
+}
+
+// FromDB fills up a PullRequestsConfig from serialized format.
+func (cfg *PullRequestsConfig) FromDB(bs []byte) error {
+	// AllowRebaseUpdate = true as default for existing PullRequestConfig in DB
+	cfg.AllowRebaseUpdate = true
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a PullRequestsConfig to a serialized format.
+func (cfg *PullRequestsConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// IsMergeStyleAllowed returns if merge style is allowed
+func (cfg *PullRequestsConfig) IsMergeStyleAllowed(mergeStyle MergeStyle) bool {
+	return mergeStyle == MergeStyleMerge && cfg.AllowMerge ||
+		mergeStyle == MergeStyleRebase && cfg.AllowRebase ||
+		mergeStyle == MergeStyleRebaseMerge && cfg.AllowRebaseMerge ||
+		mergeStyle == MergeStyleSquash && cfg.AllowSquash ||
+		mergeStyle == MergeStyleFastForwardOnly && cfg.AllowFastForwardOnly ||
+		mergeStyle == MergeStyleManuallyMerged && cfg.AllowManualMerge
+}
+
+// GetDefaultMergeStyle returns the default merge style for this pull request
+func (cfg *PullRequestsConfig) GetDefaultMergeStyle() MergeStyle {
+	if len(cfg.DefaultMergeStyle) != 0 {
+		return cfg.DefaultMergeStyle
+	}
+
+	if setting.Repository.PullRequest.DefaultMergeStyle != "" {
+		return MergeStyle(setting.Repository.PullRequest.DefaultMergeStyle)
+	}
+
+	return MergeStyleMerge
+}
+
+type ActionsConfig struct {
+	DisabledWorkflows []string
+}
+
+func (cfg *ActionsConfig) EnableWorkflow(file string) {
+	cfg.DisabledWorkflows = util.SliceRemoveAll(cfg.DisabledWorkflows, file)
+}
+
+func (cfg *ActionsConfig) ToString() string {
+	return strings.Join(cfg.DisabledWorkflows, ",")
+}
+
+func (cfg *ActionsConfig) IsWorkflowDisabled(file string) bool {
+	return slices.Contains(cfg.DisabledWorkflows, file)
+}
+
+func (cfg *ActionsConfig) DisableWorkflow(file string) {
+	for _, workflow := range cfg.DisabledWorkflows {
+		if file == workflow {
+			return
+		}
+	}
+
+	cfg.DisabledWorkflows = append(cfg.DisabledWorkflows, file)
+}
+
+// FromDB fills up a ActionsConfig from serialized format.
+func (cfg *ActionsConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a ActionsConfig to a serialized format.
+func (cfg *ActionsConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// BeforeSet is invoked from XORM before setting the value of a field of this object.
+func (r *RepoUnit) BeforeSet(colName string, val xorm.Cell) {
+	if colName == "type" {
+		switch unit.Type(db.Cell2Int64(val)) {
+		case unit.TypeExternalWiki:
+			r.Config = new(ExternalWikiConfig)
+		case unit.TypeExternalTracker:
+			r.Config = new(ExternalTrackerConfig)
+		case unit.TypePullRequests:
+			r.Config = new(PullRequestsConfig)
+		case unit.TypeIssues:
+			r.Config = new(IssuesConfig)
+		case unit.TypeActions:
+			r.Config = new(ActionsConfig)
+		case unit.TypeCode, unit.TypeReleases, unit.TypeWiki, unit.TypeProjects, unit.TypePackages:
+			fallthrough
+		default:
+			r.Config = new(UnitConfig)
+		}
+	}
+}
+
+// Unit returns Unit
+func (r *RepoUnit) Unit() unit.Unit {
+	return unit.Units[r.Type]
+}
+
+// CodeConfig returns config for unit.TypeCode
+func (r *RepoUnit) CodeConfig() *UnitConfig {
+	return r.Config.(*UnitConfig)
+}
+
+// PullRequestsConfig returns config for unit.TypePullRequests
+func (r *RepoUnit) PullRequestsConfig() *PullRequestsConfig {
+	return r.Config.(*PullRequestsConfig)
+}
+
+// ReleasesConfig returns config for unit.TypeReleases
+func (r *RepoUnit) ReleasesConfig() *UnitConfig {
+	return r.Config.(*UnitConfig)
+}
+
+// ExternalWikiConfig returns config for unit.TypeExternalWiki
+func (r *RepoUnit) ExternalWikiConfig() *ExternalWikiConfig {
+	return r.Config.(*ExternalWikiConfig)
+}
+
+// IssuesConfig returns config for unit.TypeIssues
+func (r *RepoUnit) IssuesConfig() *IssuesConfig {
+	return r.Config.(*IssuesConfig)
+}
+
+// ExternalTrackerConfig returns config for unit.TypeExternalTracker
+func (r *RepoUnit) ExternalTrackerConfig() *ExternalTrackerConfig {
+	return r.Config.(*ExternalTrackerConfig)
+}
+
+// ActionsConfig returns config for unit.ActionsConfig
+func (r *RepoUnit) ActionsConfig() *ActionsConfig {
+	return r.Config.(*ActionsConfig)
+}
+
+func getUnitsByRepoID(ctx context.Context, repoID int64) (units []*RepoUnit, err error) {
+	var tmpUnits []*RepoUnit
+	if err := db.GetEngine(ctx).Where("repo_id = ?", repoID).Find(&tmpUnits); err != nil {
+		return nil, err
+	}
+
+	for _, u := range tmpUnits {
+		if !u.Type.UnitGlobalDisabled() {
+			units = append(units, u)
+		}
+	}
+
+	return units, nil
+}
+
+// UpdateRepoUnit updates the provided repo unit
+func UpdateRepoUnit(ctx context.Context, unit *RepoUnit) error {
+	_, err := db.GetEngine(ctx).ID(unit.ID).Update(unit)
+	return err
+}
diff --git a/models/repo/repo_unit_test.go b/models/repo/repo_unit_test.go
new file mode 100644
index 0000000..deee1a7
--- /dev/null
+++ b/models/repo/repo_unit_test.go
@@ -0,0 +1,39 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/perm"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestActionsConfig(t *testing.T) {
+	cfg := &ActionsConfig{}
+	cfg.DisableWorkflow("test1.yaml")
+	assert.EqualValues(t, []string{"test1.yaml"}, cfg.DisabledWorkflows)
+
+	cfg.DisableWorkflow("test1.yaml")
+	assert.EqualValues(t, []string{"test1.yaml"}, cfg.DisabledWorkflows)
+
+	cfg.EnableWorkflow("test1.yaml")
+	assert.EqualValues(t, []string{}, cfg.DisabledWorkflows)
+
+	cfg.EnableWorkflow("test1.yaml")
+	assert.EqualValues(t, []string{}, cfg.DisabledWorkflows)
+
+	cfg.DisableWorkflow("test1.yaml")
+	cfg.DisableWorkflow("test2.yaml")
+	cfg.DisableWorkflow("test3.yaml")
+	assert.EqualValues(t, "test1.yaml,test2.yaml,test3.yaml", cfg.ToString())
+}
+
+func TestRepoUnitAccessMode(t *testing.T) {
+	assert.Equal(t, perm.AccessModeNone, UnitAccessModeNone.ToAccessMode(perm.AccessModeAdmin))
+	assert.Equal(t, perm.AccessModeRead, UnitAccessModeRead.ToAccessMode(perm.AccessModeAdmin))
+	assert.Equal(t, perm.AccessModeWrite, UnitAccessModeWrite.ToAccessMode(perm.AccessModeAdmin))
+	assert.Equal(t, perm.AccessModeRead, UnitAccessModeUnset.ToAccessMode(perm.AccessModeRead))
+}
diff --git a/models/repo/search.go b/models/repo/search.go
new file mode 100644
index 0000000..ffb8e26
--- /dev/null
+++ b/models/repo/search.go
@@ -0,0 +1,53 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import "code.gitea.io/gitea/models/db"
+
+// OrderByMap represents all possible search order
+var OrderByMap = map[string]map[string]db.SearchOrderBy{
+	"asc": {
+		"alpha":    "owner_name ASC, name ASC",
+		"created":  db.SearchOrderByOldest,
+		"updated":  db.SearchOrderByLeastUpdated,
+		"size":     "size ASC",
+		"git_size": "git_size ASC",
+		"lfs_size": "lfs_size ASC",
+		"id":       db.SearchOrderByID,
+		"stars":    db.SearchOrderByStars,
+		"forks":    db.SearchOrderByForks,
+	},
+	"desc": {
+		"alpha":    "owner_name DESC, name DESC",
+		"created":  db.SearchOrderByNewest,
+		"updated":  db.SearchOrderByRecentUpdated,
+		"size":     "size DESC",
+		"git_size": "git_size DESC",
+		"lfs_size": "lfs_size DESC",
+		"id":       db.SearchOrderByIDReverse,
+		"stars":    db.SearchOrderByStarsReverse,
+		"forks":    db.SearchOrderByForksReverse,
+	},
+}
+
+// OrderByFlatMap is similar to OrderByMap but use human language keywords
+// to decide between asc and desc
+var OrderByFlatMap = map[string]db.SearchOrderBy{
+	"newest":                OrderByMap["desc"]["created"],
+	"oldest":                OrderByMap["asc"]["created"],
+	"recentupdate":          OrderByMap["desc"]["updated"],
+	"leastupdate":           OrderByMap["asc"]["updated"],
+	"reversealphabetically": OrderByMap["desc"]["alpha"],
+	"alphabetically":        OrderByMap["asc"]["alpha"],
+	"reversesize":           OrderByMap["desc"]["size"],
+	"size":                  OrderByMap["asc"]["size"],
+	"reversegitsize":        OrderByMap["desc"]["git_size"],
+	"gitsize":               OrderByMap["asc"]["git_size"],
+	"reverselfssize":        OrderByMap["desc"]["lfs_size"],
+	"lfssize":               OrderByMap["asc"]["lfs_size"],
+	"moststars":             OrderByMap["desc"]["stars"],
+	"feweststars":           OrderByMap["asc"]["stars"],
+	"mostforks":             OrderByMap["desc"]["forks"],
+	"fewestforks":           OrderByMap["asc"]["forks"],
+}
diff --git a/models/repo/star.go b/models/repo/star.go
new file mode 100644
index 0000000..6073714
--- /dev/null
+++ b/models/repo/star.go
@@ -0,0 +1,101 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// Star represents a starred repo by an user.
+type Star struct {
+	ID          int64              `xorm:"pk autoincr"`
+	UID         int64              `xorm:"UNIQUE(s)"`
+	RepoID      int64              `xorm:"UNIQUE(s)"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+func init() {
+	db.RegisterModel(new(Star))
+}
+
+// StarRepo or unstar repository.
+func StarRepo(ctx context.Context, userID, repoID int64, star bool) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	staring := IsStaring(ctx, userID, repoID)
+
+	if star {
+		if staring {
+			return nil
+		}
+
+		if err := db.Insert(ctx, &Star{UID: userID, RepoID: repoID}); err != nil {
+			return err
+		}
+		if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars + 1 WHERE id = ?", repoID); err != nil {
+			return err
+		}
+		if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars + 1 WHERE id = ?", userID); err != nil {
+			return err
+		}
+	} else {
+		if !staring {
+			return nil
+		}
+
+		if _, err := db.DeleteByBean(ctx, &Star{UID: userID, RepoID: repoID}); err != nil {
+			return err
+		}
+		if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = num_stars - 1 WHERE id = ?", repoID); err != nil {
+			return err
+		}
+		if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars = num_stars - 1 WHERE id = ?", userID); err != nil {
+			return err
+		}
+	}
+
+	return committer.Commit()
+}
+
+// IsStaring checks if user has starred given repository.
+func IsStaring(ctx context.Context, userID, repoID int64) bool {
+	has, _ := db.GetEngine(ctx).Get(&Star{UID: userID, RepoID: repoID})
+	return has
+}
+
+// GetStargazers returns the users that starred the repo.
+func GetStargazers(ctx context.Context, repo *Repository, opts db.ListOptions) ([]*user_model.User, error) {
+	sess := db.GetEngine(ctx).Where("star.repo_id = ?", repo.ID).
+		Join("LEFT", "star", "`user`.id = star.uid")
+	if opts.Page > 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+
+		users := make([]*user_model.User, 0, opts.PageSize)
+		return users, sess.Find(&users)
+	}
+
+	users := make([]*user_model.User, 0, 8)
+	return users, sess.Find(&users)
+}
+
+// ClearRepoStars clears all stars for a repository and from the user that starred it.
+// Used when a repository is set to private.
+func ClearRepoStars(ctx context.Context, repoID int64) error {
+	if _, err := db.Exec(ctx, "UPDATE `user` SET num_stars=num_stars-1 WHERE id IN (SELECT `uid` FROM `star` WHERE repo_id = ?)", repoID); err != nil {
+		return err
+	}
+
+	if _, err := db.Exec(ctx, "UPDATE `repository` SET num_stars = 0 WHERE id = ?", repoID); err != nil {
+		return err
+	}
+
+	return db.DeleteBeans(ctx, Star{RepoID: repoID})
+}
diff --git a/models/repo/star_test.go b/models/repo/star_test.go
new file mode 100644
index 0000000..73b362c
--- /dev/null
+++ b/models/repo/star_test.go
@@ -0,0 +1,72 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestStarRepo(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	const userID = 2
+	const repoID = 1
+	unittest.AssertNotExistsBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.StarRepo(db.DefaultContext, userID, repoID, true))
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.StarRepo(db.DefaultContext, userID, repoID, true))
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.StarRepo(db.DefaultContext, userID, repoID, false))
+	unittest.AssertNotExistsBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+}
+
+func TestIsStaring(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, repo_model.IsStaring(db.DefaultContext, 2, 4))
+	assert.False(t, repo_model.IsStaring(db.DefaultContext, 3, 4))
+}
+
+func TestRepository_GetStargazers(t *testing.T) {
+	// repo with stargazers
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 4})
+	gazers, err := repo_model.GetStargazers(db.DefaultContext, repo, db.ListOptions{Page: 0})
+	require.NoError(t, err)
+	if assert.Len(t, gazers, 1) {
+		assert.Equal(t, int64(2), gazers[0].ID)
+	}
+}
+
+func TestRepository_GetStargazers2(t *testing.T) {
+	// repo with stargazers
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+	gazers, err := repo_model.GetStargazers(db.DefaultContext, repo, db.ListOptions{Page: 0})
+	require.NoError(t, err)
+	assert.Empty(t, gazers)
+}
+
+func TestClearRepoStars(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	const userID = 2
+	const repoID = 1
+	unittest.AssertNotExistsBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.StarRepo(db.DefaultContext, userID, repoID, true))
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.StarRepo(db.DefaultContext, userID, repoID, false))
+	unittest.AssertNotExistsBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+	require.NoError(t, repo_model.ClearRepoStars(db.DefaultContext, repoID))
+	unittest.AssertNotExistsBean(t, &repo_model.Star{UID: userID, RepoID: repoID})
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	gazers, err := repo_model.GetStargazers(db.DefaultContext, repo, db.ListOptions{Page: 0})
+	require.NoError(t, err)
+	assert.Empty(t, gazers)
+}
diff --git a/models/repo/topic.go b/models/repo/topic.go
new file mode 100644
index 0000000..6db6c8a
--- /dev/null
+++ b/models/repo/topic.go
@@ -0,0 +1,389 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"regexp"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+func init() {
+	db.RegisterModel(new(Topic))
+	db.RegisterModel(new(RepoTopic))
+}
+
+var topicPattern = regexp.MustCompile(`^[a-z0-9][-.a-z0-9]*$`)
+
+// Topic represents a topic of repositories
+type Topic struct {
+	ID          int64  `xorm:"pk autoincr"`
+	Name        string `xorm:"UNIQUE VARCHAR(50)"`
+	RepoCount   int
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+// RepoTopic represents associated repositories and topics
+type RepoTopic struct { //revive:disable-line:exported
+	RepoID  int64 `xorm:"pk"`
+	TopicID int64 `xorm:"pk"`
+}
+
+// ErrTopicNotExist represents an error that a topic is not exist
+type ErrTopicNotExist struct {
+	Name string
+}
+
+// IsErrTopicNotExist checks if an error is an ErrTopicNotExist.
+func IsErrTopicNotExist(err error) bool {
+	_, ok := err.(ErrTopicNotExist)
+	return ok
+}
+
+// Error implements error interface
+func (err ErrTopicNotExist) Error() string {
+	return fmt.Sprintf("topic is not exist [name: %s]", err.Name)
+}
+
+func (err ErrTopicNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ValidateTopic checks a topic by length and match pattern rules
+func ValidateTopic(topic string) bool {
+	return len(topic) <= 35 && topicPattern.MatchString(topic)
+}
+
+// SanitizeAndValidateTopics sanitizes and checks an array or topics
+func SanitizeAndValidateTopics(topics []string) (validTopics, invalidTopics []string) {
+	validTopics = make([]string, 0)
+	mValidTopics := make(container.Set[string])
+	invalidTopics = make([]string, 0)
+
+	for _, topic := range topics {
+		topic = strings.TrimSpace(strings.ToLower(topic))
+		// ignore empty string
+		if len(topic) == 0 {
+			continue
+		}
+		// ignore same topic twice
+		if mValidTopics.Contains(topic) {
+			continue
+		}
+		if ValidateTopic(topic) {
+			validTopics = append(validTopics, topic)
+			mValidTopics.Add(topic)
+		} else {
+			invalidTopics = append(invalidTopics, topic)
+		}
+	}
+
+	return validTopics, invalidTopics
+}
+
+// GetTopicByName retrieves topic by name
+func GetTopicByName(ctx context.Context, name string) (*Topic, error) {
+	var topic Topic
+	if has, err := db.GetEngine(ctx).Where("name = ?", name).Get(&topic); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrTopicNotExist{name}
+	}
+	return &topic, nil
+}
+
+// addTopicByNameToRepo adds a topic name to a repo and increments the topic count.
+// Returns topic after the addition
+func addTopicByNameToRepo(ctx context.Context, repoID int64, topicName string) (*Topic, error) {
+	var topic Topic
+	e := db.GetEngine(ctx)
+	has, err := e.Where("name = ?", topicName).Get(&topic)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		topic.Name = topicName
+		topic.RepoCount = 1
+		if err := db.Insert(ctx, &topic); err != nil {
+			return nil, err
+		}
+	} else {
+		topic.RepoCount++
+		if _, err := e.ID(topic.ID).Cols("repo_count").Update(&topic); err != nil {
+			return nil, err
+		}
+	}
+
+	if err := db.Insert(ctx, &RepoTopic{
+		RepoID:  repoID,
+		TopicID: topic.ID,
+	}); err != nil {
+		return nil, err
+	}
+
+	return &topic, nil
+}
+
+// removeTopicFromRepo remove a topic from a repo and decrements the topic repo count
+func removeTopicFromRepo(ctx context.Context, repoID int64, topic *Topic) error {
+	topic.RepoCount--
+	e := db.GetEngine(ctx)
+	if _, err := e.ID(topic.ID).Cols("repo_count").Update(topic); err != nil {
+		return err
+	}
+
+	if _, err := e.Delete(&RepoTopic{
+		RepoID:  repoID,
+		TopicID: topic.ID,
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// RemoveTopicsFromRepo remove all topics from the repo and decrements respective topics repo count
+func RemoveTopicsFromRepo(ctx context.Context, repoID int64) error {
+	e := db.GetEngine(ctx)
+	_, err := e.Where(
+		builder.In("id",
+			builder.Select("topic_id").From("repo_topic").Where(builder.Eq{"repo_id": repoID}),
+		),
+	).Cols("repo_count").SetExpr("repo_count", "repo_count-1").Update(&Topic{})
+	if err != nil {
+		return err
+	}
+
+	if _, err = e.Delete(&RepoTopic{RepoID: repoID}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// FindTopicOptions represents the options when fdin topics
+type FindTopicOptions struct {
+	db.ListOptions
+	RepoID  int64
+	Keyword string
+}
+
+func (opts *FindTopicOptions) toConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID > 0 {
+		cond = cond.And(builder.Eq{"repo_topic.repo_id": opts.RepoID})
+	}
+
+	if opts.Keyword != "" {
+		cond = cond.And(builder.Like{"topic.name", opts.Keyword})
+	}
+
+	return cond
+}
+
+// FindTopics retrieves the topics via FindTopicOptions
+func FindTopics(ctx context.Context, opts *FindTopicOptions) ([]*Topic, int64, error) {
+	sess := db.GetEngine(ctx).Select("topic.*").Where(opts.toConds())
+	orderBy := "topic.repo_count DESC"
+	if opts.RepoID > 0 {
+		sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
+		orderBy = "topic.name" // when render topics for a repo, it's better to sort them by name, to get consistent result
+	}
+	if opts.PageSize > 0 {
+		sess = db.SetSessionPagination(sess, opts)
+	}
+	topics := make([]*Topic, 0, 10)
+	total, err := sess.OrderBy(orderBy).FindAndCount(&topics)
+	return topics, total, err
+}
+
+// CountTopics counts the number of topics matching the FindTopicOptions
+func CountTopics(ctx context.Context, opts *FindTopicOptions) (int64, error) {
+	sess := db.GetEngine(ctx).Where(opts.toConds())
+	if opts.RepoID > 0 {
+		sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
+	}
+	return sess.Count(new(Topic))
+}
+
+// GetRepoTopicByName retrieves topic from name for a repo if it exist
+func GetRepoTopicByName(ctx context.Context, repoID int64, topicName string) (*Topic, error) {
+	cond := builder.NewCond()
+	var topic Topic
+	cond = cond.And(builder.Eq{"repo_topic.repo_id": repoID}).And(builder.Eq{"topic.name": topicName})
+	sess := db.GetEngine(ctx).Table("topic").Where(cond)
+	sess.Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id")
+	has, err := sess.Select("topic.*").Get(&topic)
+	if has {
+		return &topic, err
+	}
+	return nil, err
+}
+
+// AddTopic adds a topic name to a repository (if it does not already have it)
+func AddTopic(ctx context.Context, repoID int64, topicName string) (*Topic, error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return nil, err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	topic, err := GetRepoTopicByName(ctx, repoID, topicName)
+	if err != nil {
+		return nil, err
+	}
+	if topic != nil {
+		// Repo already have topic
+		return topic, nil
+	}
+
+	topic, err = addTopicByNameToRepo(ctx, repoID, topicName)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = syncTopicsInRepository(sess, repoID); err != nil {
+		return nil, err
+	}
+
+	return topic, committer.Commit()
+}
+
+// DeleteTopic removes a topic name from a repository (if it has it)
+func DeleteTopic(ctx context.Context, repoID int64, topicName string) (*Topic, error) {
+	topic, err := GetRepoTopicByName(ctx, repoID, topicName)
+	if err != nil {
+		return nil, err
+	}
+	if topic == nil {
+		// Repo doesn't have topic, can't be removed
+		return nil, nil
+	}
+
+	err = removeTopicFromRepo(ctx, repoID, topic)
+	if err != nil {
+		return nil, err
+	}
+
+	err = syncTopicsInRepository(db.GetEngine(ctx), repoID)
+
+	return topic, err
+}
+
+// SaveTopics save topics to a repository
+func SaveTopics(ctx context.Context, repoID int64, topicNames ...string) error {
+	topics, _, err := FindTopics(ctx, &FindTopicOptions{
+		RepoID: repoID,
+	})
+	if err != nil {
+		return err
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	var addedTopicNames []string
+	for _, topicName := range topicNames {
+		if strings.TrimSpace(topicName) == "" {
+			continue
+		}
+
+		var found bool
+		for _, t := range topics {
+			if strings.EqualFold(topicName, t.Name) {
+				found = true
+				break
+			}
+		}
+		if !found {
+			addedTopicNames = append(addedTopicNames, topicName)
+		}
+	}
+
+	var removeTopics []*Topic
+	for _, t := range topics {
+		var found bool
+		for _, topicName := range topicNames {
+			if strings.EqualFold(topicName, t.Name) {
+				found = true
+				break
+			}
+		}
+		if !found {
+			removeTopics = append(removeTopics, t)
+		}
+	}
+
+	for _, topicName := range addedTopicNames {
+		_, err := addTopicByNameToRepo(ctx, repoID, topicName)
+		if err != nil {
+			return err
+		}
+	}
+
+	for _, topic := range removeTopics {
+		err := removeTopicFromRepo(ctx, repoID, topic)
+		if err != nil {
+			return err
+		}
+	}
+
+	if err := syncTopicsInRepository(sess, repoID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// GenerateTopics generates topics from a template repository
+func GenerateTopics(ctx context.Context, templateRepo, generateRepo *Repository) error {
+	for _, topic := range templateRepo.Topics {
+		if _, err := addTopicByNameToRepo(ctx, generateRepo.ID, topic); err != nil {
+			return err
+		}
+	}
+
+	return syncTopicsInRepository(db.GetEngine(ctx), generateRepo.ID)
+}
+
+// syncTopicsInRepository makes sure topics in the topics table are copied into the topics field of the repository
+func syncTopicsInRepository(sess db.Engine, repoID int64) error {
+	topicNames := make([]string, 0, 25)
+	if err := sess.Table("topic").Cols("name").
+		Join("INNER", "repo_topic", "repo_topic.topic_id = topic.id").
+		Where("repo_topic.repo_id = ?", repoID).Asc("topic.name").Find(&topicNames); err != nil {
+		return err
+	}
+
+	if _, err := sess.ID(repoID).Cols("topics").Update(&Repository{
+		Topics: topicNames,
+	}); err != nil {
+		return err
+	}
+	return nil
+}
+
+// CountOrphanedAttachments returns the number of topics that don't belong to any repository.
+func CountOrphanedTopics(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where("repo_count = 0").Count(new(Topic))
+}
+
+// DeleteOrphanedAttachments delete all topics that don't belong to any repository.
+func DeleteOrphanedTopics(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where("repo_count = 0").Delete(new(Topic))
+}
diff --git a/models/repo/topic_test.go b/models/repo/topic_test.go
new file mode 100644
index 0000000..45cee52
--- /dev/null
+++ b/models/repo/topic_test.go
@@ -0,0 +1,83 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAddTopic(t *testing.T) {
+	totalNrOfTopics := 6
+	repo1NrOfTopics := 3
+
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	topics, _, err := repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{})
+	require.NoError(t, err)
+	assert.Len(t, topics, totalNrOfTopics)
+
+	topics, total, err := repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{
+		ListOptions: db.ListOptions{Page: 1, PageSize: 2},
+	})
+	require.NoError(t, err)
+	assert.Len(t, topics, 2)
+	assert.EqualValues(t, 6, total)
+
+	topics, _, err = repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{
+		RepoID: 1,
+	})
+	require.NoError(t, err)
+	assert.Len(t, topics, repo1NrOfTopics)
+
+	require.NoError(t, repo_model.SaveTopics(db.DefaultContext, 2, "golang"))
+	repo2NrOfTopics := 1
+	topics, _, err = repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{})
+	require.NoError(t, err)
+	assert.Len(t, topics, totalNrOfTopics)
+
+	topics, _, err = repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{
+		RepoID: 2,
+	})
+	require.NoError(t, err)
+	assert.Len(t, topics, repo2NrOfTopics)
+
+	require.NoError(t, repo_model.SaveTopics(db.DefaultContext, 2, "golang", "gitea"))
+	repo2NrOfTopics = 2
+	totalNrOfTopics++
+	topic, err := repo_model.GetTopicByName(db.DefaultContext, "gitea")
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, topic.RepoCount)
+
+	topics, _, err = repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{})
+	require.NoError(t, err)
+	assert.Len(t, topics, totalNrOfTopics)
+
+	topics, _, err = repo_model.FindTopics(db.DefaultContext, &repo_model.FindTopicOptions{
+		RepoID: 2,
+	})
+	require.NoError(t, err)
+	assert.Len(t, topics, repo2NrOfTopics)
+}
+
+func TestTopicValidator(t *testing.T) {
+	assert.True(t, repo_model.ValidateTopic("12345"))
+	assert.True(t, repo_model.ValidateTopic("2-test"))
+	assert.True(t, repo_model.ValidateTopic("foo.bar"))
+	assert.True(t, repo_model.ValidateTopic("test-3"))
+	assert.True(t, repo_model.ValidateTopic("first"))
+	assert.True(t, repo_model.ValidateTopic("second-test-topic"))
+	assert.True(t, repo_model.ValidateTopic("third-project-topic-with-max-length"))
+
+	assert.False(t, repo_model.ValidateTopic("$fourth-test,topic"))
+	assert.False(t, repo_model.ValidateTopic("-fifth-test-topic"))
+	assert.False(t, repo_model.ValidateTopic("sixth-go-project-topic-with-excess-length"))
+	assert.False(t, repo_model.ValidateTopic(".foo"))
+}
diff --git a/models/repo/update.go b/models/repo/update.go
new file mode 100644
index 0000000..e7ca224
--- /dev/null
+++ b/models/repo/update.go
@@ -0,0 +1,145 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// UpdateRepositoryOwnerNames updates repository owner_names (this should only be used when the ownerName has changed case)
+func UpdateRepositoryOwnerNames(ctx context.Context, ownerID int64, ownerName string) error {
+	if ownerID == 0 {
+		return nil
+	}
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err := db.GetEngine(ctx).Where("owner_id = ?", ownerID).Cols("owner_name").Update(&Repository{
+		OwnerName: ownerName,
+	}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// UpdateRepositoryUpdatedTime updates a repository's updated time
+func UpdateRepositoryUpdatedTime(ctx context.Context, repoID int64, updateTime time.Time) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE repository SET updated_unix = ? WHERE id = ?", updateTime.Unix(), repoID)
+	return err
+}
+
+// UpdateRepositoryCols updates repository's columns
+func UpdateRepositoryCols(ctx context.Context, repo *Repository, cols ...string) error {
+	_, err := db.GetEngine(ctx).ID(repo.ID).Cols(cols...).Update(repo)
+	return err
+}
+
+// ErrReachLimitOfRepo represents a "ReachLimitOfRepo" kind of error.
+type ErrReachLimitOfRepo struct {
+	Limit int
+}
+
+// IsErrReachLimitOfRepo checks if an error is a ErrReachLimitOfRepo.
+func IsErrReachLimitOfRepo(err error) bool {
+	_, ok := err.(ErrReachLimitOfRepo)
+	return ok
+}
+
+func (err ErrReachLimitOfRepo) Error() string {
+	return fmt.Sprintf("user has reached maximum limit of repositories [limit: %d]", err.Limit)
+}
+
+func (err ErrReachLimitOfRepo) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrRepoAlreadyExist represents a "RepoAlreadyExist" kind of error.
+type ErrRepoAlreadyExist struct {
+	Uname string
+	Name  string
+}
+
+// IsErrRepoAlreadyExist checks if an error is a ErrRepoAlreadyExist.
+func IsErrRepoAlreadyExist(err error) bool {
+	_, ok := err.(ErrRepoAlreadyExist)
+	return ok
+}
+
+func (err ErrRepoAlreadyExist) Error() string {
+	return fmt.Sprintf("repository already exists [uname: %s, name: %s]", err.Uname, err.Name)
+}
+
+func (err ErrRepoAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrRepoFilesAlreadyExist represents a "RepoFilesAlreadyExist" kind of error.
+type ErrRepoFilesAlreadyExist struct {
+	Uname string
+	Name  string
+}
+
+// IsErrRepoFilesAlreadyExist checks if an error is a ErrRepoAlreadyExist.
+func IsErrRepoFilesAlreadyExist(err error) bool {
+	_, ok := err.(ErrRepoFilesAlreadyExist)
+	return ok
+}
+
+func (err ErrRepoFilesAlreadyExist) Error() string {
+	return fmt.Sprintf("repository files already exist [uname: %s, name: %s]", err.Uname, err.Name)
+}
+
+func (err ErrRepoFilesAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// CheckCreateRepository check if could created a repository
+func CheckCreateRepository(ctx context.Context, doer, u *user_model.User, name string, overwriteOrAdopt bool) error {
+	if !doer.CanCreateRepo() {
+		return ErrReachLimitOfRepo{u.MaxRepoCreation}
+	}
+
+	if err := IsUsableRepoName(name); err != nil {
+		return err
+	}
+
+	has, err := IsRepositoryModelOrDirExist(ctx, u, name)
+	if err != nil {
+		return fmt.Errorf("IsRepositoryExist: %w", err)
+	} else if has {
+		return ErrRepoAlreadyExist{u.Name, name}
+	}
+
+	repoPath := RepoPath(u.Name, name)
+	isExist, err := util.IsExist(repoPath)
+	if err != nil {
+		log.Error("Unable to check if %s exists. Error: %v", repoPath, err)
+		return err
+	}
+	if !overwriteOrAdopt && isExist {
+		return ErrRepoFilesAlreadyExist{u.Name, name}
+	}
+	return nil
+}
+
+// UpdateRepoSize updates the repository size, calculating it using getDirectorySize
+func UpdateRepoSize(ctx context.Context, repoID, gitSize, lfsSize int64) error {
+	_, err := db.GetEngine(ctx).ID(repoID).Cols("size", "git_size", "lfs_size").NoAutoTime().Update(&Repository{
+		Size:    gitSize + lfsSize,
+		GitSize: gitSize,
+		LFSSize: lfsSize,
+	})
+	return err
+}
diff --git a/models/repo/upload.go b/models/repo/upload.go
new file mode 100644
index 0000000..18834f6
--- /dev/null
+++ b/models/repo/upload.go
@@ -0,0 +1,175 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"os"
+	"path"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	gouuid "github.com/google/uuid"
+)
+
+// ErrUploadNotExist represents a "UploadNotExist" kind of error.
+type ErrUploadNotExist struct {
+	ID   int64
+	UUID string
+}
+
+// IsErrUploadNotExist checks if an error is a ErrUploadNotExist.
+func IsErrUploadNotExist(err error) bool {
+	_, ok := err.(ErrUploadNotExist)
+	return ok
+}
+
+func (err ErrUploadNotExist) Error() string {
+	return fmt.Sprintf("attachment does not exist [id: %d, uuid: %s]", err.ID, err.UUID)
+}
+
+func (err ErrUploadNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Upload represent a uploaded file to a repo to be deleted when moved
+type Upload struct {
+	ID   int64  `xorm:"pk autoincr"`
+	UUID string `xorm:"uuid UNIQUE"`
+	Name string
+}
+
+func init() {
+	db.RegisterModel(new(Upload))
+}
+
+// UploadLocalPath returns where uploads is stored in local file system based on given UUID.
+func UploadLocalPath(uuid string) string {
+	return path.Join(setting.Repository.Upload.TempPath, uuid[0:1], uuid[1:2], uuid)
+}
+
+// LocalPath returns where uploads are temporarily stored in local file system.
+func (upload *Upload) LocalPath() string {
+	return UploadLocalPath(upload.UUID)
+}
+
+// NewUpload creates a new upload object.
+func NewUpload(ctx context.Context, name string, buf []byte, file multipart.File) (_ *Upload, err error) {
+	upload := &Upload{
+		UUID: gouuid.New().String(),
+		Name: name,
+	}
+
+	localPath := upload.LocalPath()
+	if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil {
+		return nil, fmt.Errorf("MkdirAll: %w", err)
+	}
+
+	fw, err := os.Create(localPath)
+	if err != nil {
+		return nil, fmt.Errorf("Create: %w", err)
+	}
+	defer fw.Close()
+
+	if _, err = fw.Write(buf); err != nil {
+		return nil, fmt.Errorf("Write: %w", err)
+	} else if _, err = io.Copy(fw, file); err != nil {
+		return nil, fmt.Errorf("Copy: %w", err)
+	}
+
+	if _, err := db.GetEngine(ctx).Insert(upload); err != nil {
+		return nil, err
+	}
+
+	return upload, nil
+}
+
+// GetUploadByUUID returns the Upload by UUID
+func GetUploadByUUID(ctx context.Context, uuid string) (*Upload, error) {
+	upload := &Upload{}
+	has, err := db.GetEngine(ctx).Where("uuid=?", uuid).Get(upload)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrUploadNotExist{0, uuid}
+	}
+	return upload, nil
+}
+
+// GetUploadsByUUIDs returns multiple uploads by UUIDS
+func GetUploadsByUUIDs(ctx context.Context, uuids []string) ([]*Upload, error) {
+	if len(uuids) == 0 {
+		return []*Upload{}, nil
+	}
+
+	// Silently drop invalid uuids.
+	uploads := make([]*Upload, 0, len(uuids))
+	return uploads, db.GetEngine(ctx).In("uuid", uuids).Find(&uploads)
+}
+
+// DeleteUploads deletes multiple uploads
+func DeleteUploads(ctx context.Context, uploads ...*Upload) (err error) {
+	if len(uploads) == 0 {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	ids := make([]int64, len(uploads))
+	for i := 0; i < len(uploads); i++ {
+		ids[i] = uploads[i].ID
+	}
+	if err = db.DeleteByIDs[Upload](ctx, ids...); err != nil {
+		return fmt.Errorf("delete uploads: %w", err)
+	}
+
+	if err = committer.Commit(); err != nil {
+		return err
+	}
+
+	for _, upload := range uploads {
+		localPath := upload.LocalPath()
+		isFile, err := util.IsFile(localPath)
+		if err != nil {
+			log.Error("Unable to check if %s is a file. Error: %v", localPath, err)
+		}
+		if !isFile {
+			continue
+		}
+
+		if err := util.Remove(localPath); err != nil {
+			return fmt.Errorf("remove upload: %w", err)
+		}
+	}
+
+	return nil
+}
+
+// DeleteUploadByUUID deletes a upload by UUID
+func DeleteUploadByUUID(ctx context.Context, uuid string) error {
+	upload, err := GetUploadByUUID(ctx, uuid)
+	if err != nil {
+		if IsErrUploadNotExist(err) {
+			return nil
+		}
+		return fmt.Errorf("GetUploadByUUID: %w", err)
+	}
+
+	if err := DeleteUploads(ctx, upload); err != nil {
+		return fmt.Errorf("DeleteUpload: %w", err)
+	}
+
+	return nil
+}
diff --git a/models/repo/user_repo.go b/models/repo/user_repo.go
new file mode 100644
index 0000000..6790ee1
--- /dev/null
+++ b/models/repo/user_repo.go
@@ -0,0 +1,197 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+	api "code.gitea.io/gitea/modules/structs"
+
+	"xorm.io/builder"
+)
+
+// GetStarredRepos returns the repos starred by a particular user
+func GetStarredRepos(ctx context.Context, userID int64, private bool, listOptions db.ListOptions) ([]*Repository, error) {
+	sess := db.GetEngine(ctx).
+		Where("star.uid=?", userID).
+		Join("LEFT", "star", "`repository`.id=`star`.repo_id")
+	if !private {
+		sess = sess.And("is_private=?", false)
+	}
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+
+		repos := make([]*Repository, 0, listOptions.PageSize)
+		return repos, sess.Find(&repos)
+	}
+
+	repos := make([]*Repository, 0, 10)
+	return repos, sess.Find(&repos)
+}
+
+// GetWatchedRepos returns the repos watched by a particular user
+func GetWatchedRepos(ctx context.Context, userID int64, private bool, listOptions db.ListOptions) ([]*Repository, int64, error) {
+	sess := db.GetEngine(ctx).
+		Where("watch.user_id=?", userID).
+		And("`watch`.mode<>?", WatchModeDont).
+		Join("LEFT", "watch", "`repository`.id=`watch`.repo_id")
+	if !private {
+		sess = sess.And("is_private=?", false)
+	}
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+
+		repos := make([]*Repository, 0, listOptions.PageSize)
+		total, err := sess.FindAndCount(&repos)
+		return repos, total, err
+	}
+
+	repos := make([]*Repository, 0, 10)
+	total, err := sess.FindAndCount(&repos)
+	return repos, total, err
+}
+
+// GetRepoAssignees returns all users that have write access and can be assigned to issues
+// of the repository,
+func GetRepoAssignees(ctx context.Context, repo *Repository) (_ []*user_model.User, err error) {
+	if err = repo.LoadOwner(ctx); err != nil {
+		return nil, err
+	}
+
+	e := db.GetEngine(ctx)
+	userIDs := make([]int64, 0, 10)
+	if err = e.Table("access").
+		Where("repo_id = ? AND mode >= ?", repo.ID, perm.AccessModeWrite).
+		Select("user_id").
+		Find(&userIDs); err != nil {
+		return nil, err
+	}
+
+	additionalUserIDs := make([]int64, 0, 10)
+	if err = e.Table("team_user").
+		Join("INNER", "team_repo", "`team_repo`.team_id = `team_user`.team_id").
+		Join("INNER", "team_unit", "`team_unit`.team_id = `team_user`.team_id").
+		Where("`team_repo`.repo_id = ? AND (`team_unit`.access_mode >= ? OR (`team_unit`.access_mode = ? AND `team_unit`.`type` = ?))",
+			repo.ID, perm.AccessModeWrite, perm.AccessModeRead, unit.TypePullRequests).
+		Distinct("`team_user`.uid").
+		Select("`team_user`.uid").
+		Find(&additionalUserIDs); err != nil {
+		return nil, err
+	}
+
+	uniqueUserIDs := make(container.Set[int64])
+	uniqueUserIDs.AddMultiple(userIDs...)
+	uniqueUserIDs.AddMultiple(additionalUserIDs...)
+
+	// Leave a seat for owner itself to append later, but if owner is an organization
+	// and just waste 1 unit is cheaper than re-allocate memory once.
+	users := make([]*user_model.User, 0, len(uniqueUserIDs)+1)
+	if len(userIDs) > 0 {
+		if err = e.In("id", uniqueUserIDs.Values()).
+			Where(builder.Eq{"`user`.is_active": true}).
+			OrderBy(user_model.GetOrderByName()).
+			Find(&users); err != nil {
+			return nil, err
+		}
+	}
+	if !repo.Owner.IsOrganization() && !uniqueUserIDs.Contains(repo.OwnerID) {
+		users = append(users, repo.Owner)
+	}
+
+	return users, nil
+}
+
+// GetReviewers get all users can be requested to review:
+// * for private repositories this returns all users that have read access or higher to the repository.
+// * for public repositories this returns all users that have read access or higher to the repository,
+// all repo watchers and all organization members.
+// TODO: may be we should have a busy choice for users to block review request to them.
+func GetReviewers(ctx context.Context, repo *Repository, doerID, posterID int64) ([]*user_model.User, error) {
+	// Get the owner of the repository - this often already pre-cached and if so saves complexity for the following queries
+	if err := repo.LoadOwner(ctx); err != nil {
+		return nil, err
+	}
+
+	cond := builder.And(builder.Neq{"`user`.id": posterID}).
+		And(builder.Eq{"`user`.is_active": true})
+
+	if repo.IsPrivate || repo.Owner.Visibility == api.VisibleTypePrivate {
+		// This a private repository:
+		// Anyone who can read the repository is a requestable reviewer
+
+		cond = cond.And(builder.In("`user`.id",
+			builder.Select("user_id").From("access").Where(
+				builder.Eq{"repo_id": repo.ID}.
+					And(builder.Gte{"mode": perm.AccessModeRead}),
+			),
+		))
+
+		if repo.Owner.Type == user_model.UserTypeIndividual && repo.Owner.ID != posterID {
+			// as private *user* repos don't generate an entry in the `access` table,
+			// the owner of a private repo needs to be explicitly added.
+			cond = cond.Or(builder.Eq{"`user`.id": repo.Owner.ID})
+		}
+	} else {
+		// This is a "public" repository:
+		// Any user that has read access, is a watcher or organization member can be requested to review
+		cond = cond.And(builder.And(builder.In("`user`.id",
+			builder.Select("user_id").From("access").
+				Where(builder.Eq{"repo_id": repo.ID}.
+					And(builder.Gte{"mode": perm.AccessModeRead})),
+		).Or(builder.In("`user`.id",
+			builder.Select("user_id").From("watch").
+				Where(builder.Eq{"repo_id": repo.ID}.
+					And(builder.In("mode", WatchModeNormal, WatchModeAuto))),
+		).Or(builder.In("`user`.id",
+			builder.Select("uid").From("org_user").
+				Where(builder.Eq{"org_id": repo.OwnerID}),
+		)))))
+	}
+
+	users := make([]*user_model.User, 0, 8)
+	return users, db.GetEngine(ctx).Where(cond).OrderBy(user_model.GetOrderByName()).Find(&users)
+}
+
+// GetIssuePostersWithSearch returns users with limit of 30 whose username started with prefix that have authored an issue/pull request for the given repository
+// If isShowFullName is set to true, also include full name prefix search
+func GetIssuePostersWithSearch(ctx context.Context, repo *Repository, isPull bool, search string, isShowFullName bool) ([]*user_model.User, error) {
+	users := make([]*user_model.User, 0, 30)
+	var prefixCond builder.Cond = builder.Like{"name", search + "%"}
+	if isShowFullName {
+		prefixCond = prefixCond.Or(builder.Like{"full_name", "%" + search + "%"})
+	}
+
+	cond := builder.In("`user`.id",
+		builder.Select("poster_id").From("issue").Where(
+			builder.Eq{"repo_id": repo.ID}.
+				And(builder.Eq{"is_pull": isPull}),
+		).GroupBy("poster_id")).And(prefixCond)
+
+	return users, db.GetEngine(ctx).
+		Where(cond).
+		Cols("id", "name", "full_name", "avatar", "avatar_email", "use_custom_avatar").
+		OrderBy("name").
+		Limit(30).
+		Find(&users)
+}
+
+// GetWatchedRepoIDsOwnedBy returns the repos owned by a particular user watched by a particular user
+func GetWatchedRepoIDsOwnedBy(ctx context.Context, userID, ownedByUserID int64) ([]int64, error) {
+	repoIDs := make([]int64, 0, 10)
+	err := db.GetEngine(ctx).
+		Table("repository").
+		Select("`repository`.id").
+		Join("LEFT", "watch", "`repository`.id=`watch`.repo_id").
+		Where("`watch`.user_id=?", userID).
+		And("`watch`.mode<>?", WatchModeDont).
+		And("`repository`.owner_id=?", ownedByUserID).Find(&repoIDs)
+	return repoIDs, err
+}
diff --git a/models/repo/user_repo_test.go b/models/repo/user_repo_test.go
new file mode 100644
index 0000000..c784a55
--- /dev/null
+++ b/models/repo/user_repo_test.go
@@ -0,0 +1,96 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepoAssignees(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	users, err := repo_model.GetRepoAssignees(db.DefaultContext, repo2)
+	require.NoError(t, err)
+	assert.Len(t, users, 1)
+	assert.Equal(t, int64(2), users[0].ID)
+
+	repo21 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 21})
+	users, err = repo_model.GetRepoAssignees(db.DefaultContext, repo21)
+	require.NoError(t, err)
+	if assert.Len(t, users, 3) {
+		assert.ElementsMatch(t, []int64{15, 16, 18}, []int64{users[0].ID, users[1].ID, users[2].ID})
+	}
+
+	// do not return deactivated users
+	require.NoError(t, user_model.UpdateUserCols(db.DefaultContext, &user_model.User{ID: 15, IsActive: false}, "is_active"))
+	users, err = repo_model.GetRepoAssignees(db.DefaultContext, repo21)
+	require.NoError(t, err)
+	if assert.Len(t, users, 2) {
+		assert.NotContains(t, []int64{users[0].ID, users[1].ID}, 15)
+	}
+}
+
+func TestRepoGetReviewers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// test public repo
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+
+	ctx := db.DefaultContext
+	reviewers, err := repo_model.GetReviewers(ctx, repo1, 2, 2)
+	require.NoError(t, err)
+	if assert.Len(t, reviewers, 3) {
+		assert.ElementsMatch(t, []int64{1, 4, 11}, []int64{reviewers[0].ID, reviewers[1].ID, reviewers[2].ID})
+	}
+
+	// should include doer if doer is not PR poster.
+	reviewers, err = repo_model.GetReviewers(ctx, repo1, 11, 2)
+	require.NoError(t, err)
+	assert.Len(t, reviewers, 3)
+
+	// should not include PR poster, if PR poster would be otherwise eligible
+	reviewers, err = repo_model.GetReviewers(ctx, repo1, 11, 4)
+	require.NoError(t, err)
+	assert.Len(t, reviewers, 2)
+
+	// test private user repo
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+
+	reviewers, err = repo_model.GetReviewers(ctx, repo2, 2, 4)
+	require.NoError(t, err)
+	assert.Len(t, reviewers, 1)
+	assert.EqualValues(t, 2, reviewers[0].ID)
+
+	// test private org repo
+	repo3 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 3})
+
+	reviewers, err = repo_model.GetReviewers(ctx, repo3, 2, 1)
+	require.NoError(t, err)
+	assert.Len(t, reviewers, 2)
+
+	reviewers, err = repo_model.GetReviewers(ctx, repo3, 2, 2)
+	require.NoError(t, err)
+	assert.Len(t, reviewers, 1)
+}
+
+func GetWatchedRepoIDsOwnedBy(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 9})
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	repoIDs, err := repo_model.GetWatchedRepoIDsOwnedBy(db.DefaultContext, user1.ID, user2.ID)
+	require.NoError(t, err)
+	assert.Len(t, repoIDs, 1)
+	assert.EqualValues(t, 1, repoIDs[0])
+}
diff --git a/models/repo/watch.go b/models/repo/watch.go
new file mode 100644
index 0000000..6974d89
--- /dev/null
+++ b/models/repo/watch.go
@@ -0,0 +1,190 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// WatchMode specifies what kind of watch the user has on a repository
+type WatchMode int8
+
+const (
+	// WatchModeNone don't watch
+	WatchModeNone WatchMode = iota // 0
+	// WatchModeNormal watch repository (from other sources)
+	WatchModeNormal // 1
+	// WatchModeDont explicit don't auto-watch
+	WatchModeDont // 2
+	// WatchModeAuto watch repository (from AutoWatchOnChanges)
+	WatchModeAuto // 3
+)
+
+// Watch is connection request for receiving repository notification.
+type Watch struct {
+	ID          int64              `xorm:"pk autoincr"`
+	UserID      int64              `xorm:"UNIQUE(watch)"`
+	RepoID      int64              `xorm:"UNIQUE(watch)"`
+	Mode        WatchMode          `xorm:"SMALLINT NOT NULL DEFAULT 1"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(Watch))
+}
+
+// GetWatch gets what kind of subscription a user has on a given repository; returns dummy record if none found
+func GetWatch(ctx context.Context, userID, repoID int64) (Watch, error) {
+	watch := Watch{UserID: userID, RepoID: repoID}
+	has, err := db.GetEngine(ctx).Get(&watch)
+	if err != nil {
+		return watch, err
+	}
+	if !has {
+		watch.Mode = WatchModeNone
+	}
+	return watch, nil
+}
+
+// IsWatchMode Decodes watchability of WatchMode
+func IsWatchMode(mode WatchMode) bool {
+	return mode != WatchModeNone && mode != WatchModeDont
+}
+
+// IsWatching checks if user has watched given repository.
+func IsWatching(ctx context.Context, userID, repoID int64) bool {
+	watch, err := GetWatch(ctx, userID, repoID)
+	return err == nil && IsWatchMode(watch.Mode)
+}
+
+func watchRepoMode(ctx context.Context, watch Watch, mode WatchMode) (err error) {
+	if watch.Mode == mode {
+		return nil
+	}
+	if mode == WatchModeAuto && (watch.Mode == WatchModeDont || IsWatchMode(watch.Mode)) {
+		// Don't auto watch if already watching or deliberately not watching
+		return nil
+	}
+
+	hadrec := watch.Mode != WatchModeNone
+	needsrec := mode != WatchModeNone
+	repodiff := 0
+
+	if IsWatchMode(mode) && !IsWatchMode(watch.Mode) {
+		repodiff = 1
+	} else if !IsWatchMode(mode) && IsWatchMode(watch.Mode) {
+		repodiff = -1
+	}
+
+	watch.Mode = mode
+
+	if !hadrec && needsrec {
+		watch.Mode = mode
+		if err = db.Insert(ctx, watch); err != nil {
+			return err
+		}
+	} else if needsrec {
+		watch.Mode = mode
+		if _, err := db.GetEngine(ctx).ID(watch.ID).AllCols().Update(watch); err != nil {
+			return err
+		}
+	} else if _, err = db.DeleteByID[Watch](ctx, watch.ID); err != nil {
+		return err
+	}
+	if repodiff != 0 {
+		_, err = db.GetEngine(ctx).Exec("UPDATE `repository` SET num_watches = num_watches + ? WHERE id = ?", repodiff, watch.RepoID)
+	}
+	return err
+}
+
+// WatchRepoMode watch repository in specific mode.
+func WatchRepoMode(ctx context.Context, userID, repoID int64, mode WatchMode) (err error) {
+	var watch Watch
+	if watch, err = GetWatch(ctx, userID, repoID); err != nil {
+		return err
+	}
+	return watchRepoMode(ctx, watch, mode)
+}
+
+// WatchRepo watch or unwatch repository.
+func WatchRepo(ctx context.Context, userID, repoID int64, doWatch bool) (err error) {
+	var watch Watch
+	if watch, err = GetWatch(ctx, userID, repoID); err != nil {
+		return err
+	}
+	if !doWatch && watch.Mode == WatchModeAuto {
+		err = watchRepoMode(ctx, watch, WatchModeDont)
+	} else if !doWatch {
+		err = watchRepoMode(ctx, watch, WatchModeNone)
+	} else {
+		err = watchRepoMode(ctx, watch, WatchModeNormal)
+	}
+	return err
+}
+
+// GetWatchers returns all watchers of given repository.
+func GetWatchers(ctx context.Context, repoID int64) ([]*Watch, error) {
+	watches := make([]*Watch, 0, 10)
+	return watches, db.GetEngine(ctx).Where("`watch`.repo_id=?", repoID).
+		And("`watch`.mode<>?", WatchModeDont).
+		And("`user`.is_active=?", true).
+		And("`user`.prohibit_login=?", false).
+		Join("INNER", "`user`", "`user`.id = `watch`.user_id").
+		Find(&watches)
+}
+
+// GetRepoWatchersIDs returns IDs of watchers for a given repo ID
+// but avoids joining with `user` for performance reasons
+// User permissions must be verified elsewhere if required
+func GetRepoWatchersIDs(ctx context.Context, repoID int64) ([]int64, error) {
+	ids := make([]int64, 0, 64)
+	return ids, db.GetEngine(ctx).Table("watch").
+		Where("watch.repo_id=?", repoID).
+		And("watch.mode<>?", WatchModeDont).
+		Select("user_id").
+		Find(&ids)
+}
+
+// GetRepoWatchers returns range of users watching given repository.
+func GetRepoWatchers(ctx context.Context, repoID int64, opts db.ListOptions) ([]*user_model.User, error) {
+	sess := db.GetEngine(ctx).Where("watch.repo_id=?", repoID).
+		Join("LEFT", "watch", "`user`.id=`watch`.user_id").
+		And("`watch`.mode<>?", WatchModeDont)
+	if opts.Page > 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+		users := make([]*user_model.User, 0, opts.PageSize)
+
+		return users, sess.Find(&users)
+	}
+
+	users := make([]*user_model.User, 0, 8)
+	return users, sess.Find(&users)
+}
+
+// WatchIfAuto subscribes to repo if AutoWatchOnChanges is set
+func WatchIfAuto(ctx context.Context, userID, repoID int64, isWrite bool) error {
+	if !isWrite || !setting.Service.AutoWatchOnChanges {
+		return nil
+	}
+	watch, err := GetWatch(ctx, userID, repoID)
+	if err != nil {
+		return err
+	}
+	if watch.Mode != WatchModeNone {
+		return nil
+	}
+	return watchRepoMode(ctx, watch, WatchModeAuto)
+}
+
+// UnwatchRepos will unwatch the user from all given repositories.
+func UnwatchRepos(ctx context.Context, userID int64, repoIDs []int64) error {
+	_, err := db.GetEngine(ctx).Where("user_id=?", userID).In("repo_id", repoIDs).Delete(&Watch{})
+	return err
+}
diff --git a/models/repo/watch_test.go b/models/repo/watch_test.go
new file mode 100644
index 0000000..dbf1505
--- /dev/null
+++ b/models/repo/watch_test.go
@@ -0,0 +1,153 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsWatching(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	assert.True(t, repo_model.IsWatching(db.DefaultContext, 1, 1))
+	assert.True(t, repo_model.IsWatching(db.DefaultContext, 4, 1))
+	assert.True(t, repo_model.IsWatching(db.DefaultContext, 11, 1))
+
+	assert.False(t, repo_model.IsWatching(db.DefaultContext, 1, 5))
+	assert.False(t, repo_model.IsWatching(db.DefaultContext, 8, 1))
+	assert.False(t, repo_model.IsWatching(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+}
+
+func TestGetWatchers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	watches, err := repo_model.GetWatchers(db.DefaultContext, repo.ID)
+	require.NoError(t, err)
+	// One watchers are inactive, thus minus 1
+	assert.Len(t, watches, repo.NumWatches-1)
+	for _, watch := range watches {
+		assert.EqualValues(t, repo.ID, watch.RepoID)
+	}
+
+	watches, err = repo_model.GetWatchers(db.DefaultContext, unittest.NonexistentID)
+	require.NoError(t, err)
+	assert.Empty(t, watches)
+}
+
+func TestRepository_GetWatchers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	watchers, err := repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, repo.NumWatches)
+	for _, watcher := range watchers {
+		unittest.AssertExistsAndLoadBean(t, &repo_model.Watch{UserID: watcher.ID, RepoID: repo.ID})
+	}
+
+	repo = unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 9})
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Empty(t, watchers)
+}
+
+func TestWatchIfAuto(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	watchers, err := repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, repo.NumWatches)
+
+	setting.Service.AutoWatchOnChanges = false
+
+	prevCount := repo.NumWatches
+
+	// Must not add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 8, 1, true))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+
+	// Should not add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 10, 1, true))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+
+	setting.Service.AutoWatchOnChanges = true
+
+	// Must not add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 8, 1, true))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+
+	// Should not add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 12, 1, false))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+
+	// Should add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 12, 1, true))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount+1)
+
+	// Should remove watch, inhibit from adding auto
+	require.NoError(t, repo_model.WatchRepo(db.DefaultContext, 12, 1, false))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+
+	// Must not add watch
+	require.NoError(t, repo_model.WatchIfAuto(db.DefaultContext, 12, 1, true))
+	watchers, err = repo_model.GetRepoWatchers(db.DefaultContext, repo.ID, db.ListOptions{Page: 1})
+	require.NoError(t, err)
+	assert.Len(t, watchers, prevCount)
+}
+
+func TestWatchRepoMode(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1}, 0)
+
+	require.NoError(t, repo_model.WatchRepoMode(db.DefaultContext, 12, 1, repo_model.WatchModeAuto))
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1}, 1)
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1, Mode: repo_model.WatchModeAuto}, 1)
+
+	require.NoError(t, repo_model.WatchRepoMode(db.DefaultContext, 12, 1, repo_model.WatchModeNormal))
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1}, 1)
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1, Mode: repo_model.WatchModeNormal}, 1)
+
+	require.NoError(t, repo_model.WatchRepoMode(db.DefaultContext, 12, 1, repo_model.WatchModeDont))
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1}, 1)
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1, Mode: repo_model.WatchModeDont}, 1)
+
+	require.NoError(t, repo_model.WatchRepoMode(db.DefaultContext, 12, 1, repo_model.WatchModeNone))
+	unittest.AssertCount(t, &repo_model.Watch{UserID: 12, RepoID: 1}, 0)
+}
+
+func TestUnwatchRepos(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Watch{UserID: 4, RepoID: 1})
+	unittest.AssertExistsAndLoadBean(t, &repo_model.Watch{UserID: 4, RepoID: 2})
+
+	err := repo_model.UnwatchRepos(db.DefaultContext, 4, []int64{1, 2})
+	require.NoError(t, err)
+
+	unittest.AssertNotExistsBean(t, &repo_model.Watch{UserID: 4, RepoID: 1})
+	unittest.AssertNotExistsBean(t, &repo_model.Watch{UserID: 4, RepoID: 2})
+}
diff --git a/models/repo/wiki.go b/models/repo/wiki.go
new file mode 100644
index 0000000..b378666
--- /dev/null
+++ b/models/repo/wiki.go
@@ -0,0 +1,96 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrWikiAlreadyExist represents a "WikiAlreadyExist" kind of error.
+type ErrWikiAlreadyExist struct {
+	Title string
+}
+
+// IsErrWikiAlreadyExist checks if an error is an ErrWikiAlreadyExist.
+func IsErrWikiAlreadyExist(err error) bool {
+	_, ok := err.(ErrWikiAlreadyExist)
+	return ok
+}
+
+func (err ErrWikiAlreadyExist) Error() string {
+	return fmt.Sprintf("wiki page already exists [title: %s]", err.Title)
+}
+
+func (err ErrWikiAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrWikiReservedName represents a reserved name error.
+type ErrWikiReservedName struct {
+	Title string
+}
+
+// IsErrWikiReservedName checks if an error is an ErrWikiReservedName.
+func IsErrWikiReservedName(err error) bool {
+	_, ok := err.(ErrWikiReservedName)
+	return ok
+}
+
+func (err ErrWikiReservedName) Error() string {
+	return fmt.Sprintf("wiki title is reserved: %s", err.Title)
+}
+
+func (err ErrWikiReservedName) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrWikiInvalidFileName represents an invalid wiki file name.
+type ErrWikiInvalidFileName struct {
+	FileName string
+}
+
+// IsErrWikiInvalidFileName checks if an error is an ErrWikiInvalidFileName.
+func IsErrWikiInvalidFileName(err error) bool {
+	_, ok := err.(ErrWikiInvalidFileName)
+	return ok
+}
+
+func (err ErrWikiInvalidFileName) Error() string {
+	return fmt.Sprintf("Invalid wiki filename: %s", err.FileName)
+}
+
+func (err ErrWikiInvalidFileName) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// WikiCloneLink returns clone URLs of repository wiki.
+func (repo *Repository) WikiCloneLink() *CloneLink {
+	return repo.cloneLink(true)
+}
+
+// WikiPath returns wiki data path by given user and repository name.
+func WikiPath(userName, repoName string) string {
+	return filepath.Join(user_model.UserPath(userName), strings.ToLower(repoName)+".wiki.git")
+}
+
+// WikiPath returns wiki data path for given repository.
+func (repo *Repository) WikiPath() string {
+	return WikiPath(repo.OwnerName, repo.Name)
+}
+
+// HasWiki returns true if repository has wiki.
+func (repo *Repository) HasWiki() bool {
+	isDir, err := util.IsDir(repo.WikiPath())
+	if err != nil {
+		log.Error("Unable to check if %s is a directory: %v", repo.WikiPath(), err)
+	}
+	return isDir
+}
diff --git a/models/repo/wiki_test.go b/models/repo/wiki_test.go
new file mode 100644
index 0000000..28495a4
--- /dev/null
+++ b/models/repo/wiki_test.go
@@ -0,0 +1,46 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package repo_test
+
+import (
+	"path/filepath"
+	"testing"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestRepository_WikiCloneLink(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	cloneLink := repo.WikiCloneLink()
+	assert.Equal(t, "ssh://sshuser@try.gitea.io:3000/user2/repo1.wiki.git", cloneLink.SSH)
+	assert.Equal(t, "https://try.gitea.io/user2/repo1.wiki.git", cloneLink.HTTPS)
+}
+
+func TestWikiPath(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	expected := filepath.Join(setting.RepoRootPath, "user2/repo1.wiki.git")
+	assert.Equal(t, expected, repo_model.WikiPath("user2", "repo1"))
+}
+
+func TestRepository_WikiPath(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	expected := filepath.Join(setting.RepoRootPath, "user2/repo1.wiki.git")
+	assert.Equal(t, expected, repo.WikiPath())
+}
+
+func TestRepository_HasWiki(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	repo1 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
+	assert.True(t, repo1.HasWiki())
+	repo2 := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
+	assert.False(t, repo2.HasWiki())
+}
diff --git a/models/repo_test.go b/models/repo_test.go
new file mode 100644
index 0000000..958725f
--- /dev/null
+++ b/models/repo_test.go
@@ -0,0 +1,24 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestCheckRepoStats(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	require.NoError(t, CheckRepoStats(db.DefaultContext))
+}
+
+func TestDoctorUserStarNum(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	require.NoError(t, DoctorUserStarNum(db.DefaultContext))
+}
diff --git a/models/repo_transfer.go b/models/repo_transfer.go
new file mode 100644
index 0000000..0c23d75
--- /dev/null
+++ b/models/repo_transfer.go
@@ -0,0 +1,185 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/organization"
+	repo_model "code.gitea.io/gitea/models/repo"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// RepoTransfer is used to manage repository transfers
+type RepoTransfer struct {
+	ID          int64 `xorm:"pk autoincr"`
+	DoerID      int64
+	Doer        *user_model.User `xorm:"-"`
+	RecipientID int64
+	Recipient   *user_model.User `xorm:"-"`
+	RepoID      int64
+	TeamIDs     []int64
+	Teams       []*organization.Team `xorm:"-"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX NOT NULL created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX NOT NULL updated"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoTransfer))
+}
+
+// LoadAttributes fetches the transfer recipient from the database
+func (r *RepoTransfer) LoadAttributes(ctx context.Context) error {
+	if r.Recipient == nil {
+		u, err := user_model.GetUserByID(ctx, r.RecipientID)
+		if err != nil {
+			return err
+		}
+
+		r.Recipient = u
+	}
+
+	if r.Recipient.IsOrganization() && len(r.TeamIDs) != len(r.Teams) {
+		for _, v := range r.TeamIDs {
+			team, err := organization.GetTeamByID(ctx, v)
+			if err != nil {
+				return err
+			}
+
+			if team.OrgID != r.Recipient.ID {
+				return fmt.Errorf("team %d belongs not to org %d", v, r.Recipient.ID)
+			}
+
+			r.Teams = append(r.Teams, team)
+		}
+	}
+
+	if r.Doer == nil {
+		u, err := user_model.GetUserByID(ctx, r.DoerID)
+		if err != nil {
+			return err
+		}
+
+		r.Doer = u
+	}
+
+	return nil
+}
+
+// CanUserAcceptTransfer checks if the user has the rights to accept/decline a repo transfer.
+// For user, it checks if it's himself
+// For organizations, it checks if the user is able to create repos
+func (r *RepoTransfer) CanUserAcceptTransfer(ctx context.Context, u *user_model.User) bool {
+	if err := r.LoadAttributes(ctx); err != nil {
+		log.Error("LoadAttributes: %v", err)
+		return false
+	}
+
+	if !r.Recipient.IsOrganization() {
+		return r.RecipientID == u.ID
+	}
+
+	allowed, err := organization.CanCreateOrgRepo(ctx, r.RecipientID, u.ID)
+	if err != nil {
+		log.Error("CanCreateOrgRepo: %v", err)
+		return false
+	}
+
+	return allowed
+}
+
+// GetPendingRepositoryTransfer fetches the most recent and ongoing transfer
+// process for the repository
+func GetPendingRepositoryTransfer(ctx context.Context, repo *repo_model.Repository) (*RepoTransfer, error) {
+	transfer := new(RepoTransfer)
+
+	has, err := db.GetEngine(ctx).Where("repo_id = ? ", repo.ID).Get(transfer)
+	if err != nil {
+		return nil, err
+	}
+
+	if !has {
+		return nil, ErrNoPendingRepoTransfer{RepoID: repo.ID}
+	}
+
+	return transfer, nil
+}
+
+func DeleteRepositoryTransfer(ctx context.Context, repoID int64) error {
+	_, err := db.GetEngine(ctx).Where("repo_id = ?", repoID).Delete(&RepoTransfer{})
+	return err
+}
+
+// TestRepositoryReadyForTransfer make sure repo is ready to transfer
+func TestRepositoryReadyForTransfer(status repo_model.RepositoryStatus) error {
+	switch status {
+	case repo_model.RepositoryBeingMigrated:
+		return errors.New("repo is not ready, currently migrating")
+	case repo_model.RepositoryPendingTransfer:
+		return ErrRepoTransferInProgress{}
+	}
+	return nil
+}
+
+// CreatePendingRepositoryTransfer transfer a repo from one owner to a new one.
+// it marks the repository transfer as "pending"
+func CreatePendingRepositoryTransfer(ctx context.Context, doer, newOwner *user_model.User, repoID int64, teams []*organization.Team) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		repo, err := repo_model.GetRepositoryByID(ctx, repoID)
+		if err != nil {
+			return err
+		}
+
+		// Make sure repo is ready to transfer
+		if err := TestRepositoryReadyForTransfer(repo.Status); err != nil {
+			return err
+		}
+
+		repo.Status = repo_model.RepositoryPendingTransfer
+		if err := repo_model.UpdateRepositoryCols(ctx, repo, "status"); err != nil {
+			return err
+		}
+
+		// Check if new owner has repository with same name.
+		if has, err := repo_model.IsRepositoryModelExist(ctx, newOwner, repo.Name); err != nil {
+			return fmt.Errorf("IsRepositoryExist: %w", err)
+		} else if has {
+			return repo_model.ErrRepoAlreadyExist{
+				Uname: newOwner.LowerName,
+				Name:  repo.Name,
+			}
+		}
+
+		transfer := &RepoTransfer{
+			RepoID:      repo.ID,
+			RecipientID: newOwner.ID,
+			CreatedUnix: timeutil.TimeStampNow(),
+			UpdatedUnix: timeutil.TimeStampNow(),
+			DoerID:      doer.ID,
+			TeamIDs:     make([]int64, 0, len(teams)),
+		}
+
+		for k := range teams {
+			transfer.TeamIDs = append(transfer.TeamIDs, teams[k].ID)
+		}
+
+		return db.Insert(ctx, transfer)
+	})
+}
+
+// GetPendingTransfers returns the pending transfers of recipient which were sent by by doer.
+func GetPendingTransferIDs(ctx context.Context, reciepientID, doerID int64) ([]int64, error) {
+	pendingTransferIDs := make([]int64, 0, 8)
+	return pendingTransferIDs, db.GetEngine(ctx).Table("repo_transfer").
+		Where("doer_id = ?", doerID).
+		And("recipient_id = ?", reciepientID).
+		Cols("id").
+		Find(&pendingTransferIDs)
+}
diff --git a/models/repo_transfer_test.go b/models/repo_transfer_test.go
new file mode 100644
index 0000000..6b6d5a8
--- /dev/null
+++ b/models/repo_transfer_test.go
@@ -0,0 +1,28 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package models
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetPendingTransferIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 3})
+	reciepient := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	pendingTransfer := unittest.AssertExistsAndLoadBean(t, &RepoTransfer{RecipientID: reciepient.ID, DoerID: doer.ID})
+
+	pendingTransferIDs, err := GetPendingTransferIDs(db.DefaultContext, reciepient.ID, doer.ID)
+	require.NoError(t, err)
+	if assert.Len(t, pendingTransferIDs, 1) {
+		assert.EqualValues(t, pendingTransfer.ID, pendingTransferIDs[0])
+	}
+}
diff --git a/models/secret/secret.go b/models/secret/secret.go
new file mode 100644
index 0000000..ce0ad65
--- /dev/null
+++ b/models/secret/secret.go
@@ -0,0 +1,167 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package secret
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/models/db"
+	actions_module "code.gitea.io/gitea/modules/actions"
+	"code.gitea.io/gitea/modules/log"
+	secret_module "code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// Secret represents a secret
+//
+// It can be:
+//  1. org/user level secret, OwnerID is org/user ID and RepoID is 0
+//  2. repo level secret, OwnerID is 0 and RepoID is repo ID
+//
+// Please note that it's not acceptable to have both OwnerID and RepoID to be non-zero,
+// or it will be complicated to find secrets belonging to a specific owner.
+// For example, conditions like `OwnerID = 1` will also return secret {OwnerID: 1, RepoID: 1},
+// but it's a repo level secret, not an org/user level secret.
+// To avoid this, make it clear with {OwnerID: 0, RepoID: 1} for repo level secrets.
+//
+// Please note that it's not acceptable to have both OwnerID and RepoID to zero, global secrets are not supported.
+// It's for security reasons, admin may be not aware of that the secrets could be stolen by any user when setting them as global.
+type Secret struct {
+	ID          int64
+	OwnerID     int64              `xorm:"INDEX UNIQUE(owner_repo_name) NOT NULL"`
+	RepoID      int64              `xorm:"INDEX UNIQUE(owner_repo_name) NOT NULL DEFAULT 0"`
+	Name        string             `xorm:"UNIQUE(owner_repo_name) NOT NULL"`
+	Data        string             `xorm:"LONGTEXT"` // encrypted data
+	CreatedUnix timeutil.TimeStamp `xorm:"created NOT NULL"`
+}
+
+// ErrSecretNotFound represents a "secret not found" error.
+type ErrSecretNotFound struct {
+	Name string
+}
+
+func (err ErrSecretNotFound) Error() string {
+	return fmt.Sprintf("secret was not found [name: %s]", err.Name)
+}
+
+func (err ErrSecretNotFound) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// InsertEncryptedSecret Creates, encrypts, and validates a new secret with yet unencrypted data and insert into database
+func InsertEncryptedSecret(ctx context.Context, ownerID, repoID int64, name, data string) (*Secret, error) {
+	if ownerID != 0 && repoID != 0 {
+		// It's trying to create a secret that belongs to a repository, but OwnerID has been set accidentally.
+		// Remove OwnerID to avoid confusion; it's not worth returning an error here.
+		ownerID = 0
+	}
+	if ownerID == 0 && repoID == 0 {
+		return nil, fmt.Errorf("%w: ownerID and repoID cannot be both zero, global secrets are not supported", util.ErrInvalidArgument)
+	}
+
+	encrypted, err := secret_module.EncryptSecret(setting.SecretKey, data)
+	if err != nil {
+		return nil, err
+	}
+	secret := &Secret{
+		OwnerID: ownerID,
+		RepoID:  repoID,
+		Name:    strings.ToUpper(name),
+		Data:    encrypted,
+	}
+	return secret, db.Insert(ctx, secret)
+}
+
+func init() {
+	db.RegisterModel(new(Secret))
+}
+
+type FindSecretsOptions struct {
+	db.ListOptions
+	RepoID   int64
+	OwnerID  int64 // it will be ignored if RepoID is set
+	SecretID int64
+	Name     string
+}
+
+func (opts FindSecretsOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+
+	cond = cond.And(builder.Eq{"repo_id": opts.RepoID})
+	if opts.RepoID != 0 { // if RepoID is set
+		// ignore OwnerID and treat it as 0
+		cond = cond.And(builder.Eq{"owner_id": 0})
+	} else {
+		cond = cond.And(builder.Eq{"owner_id": opts.OwnerID})
+	}
+
+	if opts.SecretID != 0 {
+		cond = cond.And(builder.Eq{"id": opts.SecretID})
+	}
+	if opts.Name != "" {
+		cond = cond.And(builder.Eq{"name": strings.ToUpper(opts.Name)})
+	}
+
+	return cond
+}
+
+// UpdateSecret changes org or user reop secret.
+func UpdateSecret(ctx context.Context, secretID int64, data string) error {
+	encrypted, err := secret_module.EncryptSecret(setting.SecretKey, data)
+	if err != nil {
+		return err
+	}
+
+	s := &Secret{
+		Data: encrypted,
+	}
+	affected, err := db.GetEngine(ctx).ID(secretID).Cols("data").Update(s)
+	if affected != 1 {
+		return ErrSecretNotFound{}
+	}
+	return err
+}
+
+func GetSecretsOfTask(ctx context.Context, task *actions_model.ActionTask) (map[string]string, error) {
+	secrets := map[string]string{}
+
+	secrets["GITHUB_TOKEN"] = task.Token
+	secrets["GITEA_TOKEN"] = task.Token
+
+	if task.Job.Run.IsForkPullRequest && task.Job.Run.TriggerEvent != actions_module.GithubEventPullRequestTarget {
+		// ignore secrets for fork pull request, except GITHUB_TOKEN and GITEA_TOKEN which are automatically generated.
+		// for the tasks triggered by pull_request_target event, they could access the secrets because they will run in the context of the base branch
+		// see the documentation: https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target
+		return secrets, nil
+	}
+
+	ownerSecrets, err := db.Find[Secret](ctx, FindSecretsOptions{OwnerID: task.Job.Run.Repo.OwnerID})
+	if err != nil {
+		log.Error("find secrets of owner %v: %v", task.Job.Run.Repo.OwnerID, err)
+		return nil, err
+	}
+	repoSecrets, err := db.Find[Secret](ctx, FindSecretsOptions{RepoID: task.Job.Run.RepoID})
+	if err != nil {
+		log.Error("find secrets of repo %v: %v", task.Job.Run.RepoID, err)
+		return nil, err
+	}
+
+	for _, secret := range append(ownerSecrets, repoSecrets...) {
+		v, err := secret_module.DecryptSecret(setting.SecretKey, secret.Data)
+		if err != nil {
+			log.Error("decrypt secret %v %q: %v", secret.ID, secret.Name, err)
+			return nil, err
+		}
+		secrets[secret.Name] = v
+	}
+
+	return secrets, nil
+}
diff --git a/models/shared/types/ownertype.go b/models/shared/types/ownertype.go
new file mode 100644
index 0000000..a1d46c9
--- /dev/null
+++ b/models/shared/types/ownertype.go
@@ -0,0 +1,29 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package types
+
+import "code.gitea.io/gitea/modules/translation"
+
+type OwnerType string
+
+const (
+	OwnerTypeSystemGlobal = "system-global"
+	OwnerTypeIndividual   = "individual"
+	OwnerTypeRepository   = "repository"
+	OwnerTypeOrganization = "organization"
+)
+
+func (o OwnerType) LocaleString(locale translation.Locale) string {
+	switch o {
+	case OwnerTypeSystemGlobal:
+		return locale.TrString("concept_system_global")
+	case OwnerTypeIndividual:
+		return locale.TrString("concept_user_individual")
+	case OwnerTypeRepository:
+		return locale.TrString("concept_code_repository")
+	case OwnerTypeOrganization:
+		return locale.TrString("concept_user_organization")
+	}
+	return locale.TrString("unknown")
+}
diff --git a/models/system/appstate.go b/models/system/appstate.go
new file mode 100644
index 0000000..01faa1a
--- /dev/null
+++ b/models/system/appstate.go
@@ -0,0 +1,56 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+// AppState represents a state record in database
+// if one day we would make Gitea run as a cluster,
+// we can introduce a new field `Scope` here to store different states for different nodes
+type AppState struct {
+	ID       string `xorm:"pk varchar(200)"`
+	Revision int64
+	Content  string `xorm:"LONGTEXT"`
+}
+
+func init() {
+	db.RegisterModel(new(AppState))
+}
+
+// SaveAppStateContent saves the app state item to database
+func SaveAppStateContent(ctx context.Context, key, content string) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		eng := db.GetEngine(ctx)
+		// try to update existing row
+		res, err := eng.Exec("UPDATE app_state SET revision=revision+1, content=? WHERE id=?", content, key)
+		if err != nil {
+			return err
+		}
+		rows, _ := res.RowsAffected()
+		if rows != 0 {
+			// the existing row is updated, so we can return
+			return nil
+		}
+		// if no existing row, insert a new row
+		_, err = eng.Insert(&AppState{ID: key, Content: content})
+		return err
+	})
+}
+
+// GetAppStateContent gets an app state from database
+func GetAppStateContent(ctx context.Context, key string) (content string, err error) {
+	e := db.GetEngine(ctx)
+	appState := &AppState{ID: key}
+	has, err := e.Get(appState)
+	if err != nil {
+		return "", err
+	} else if !has {
+		return "", nil
+	}
+	return appState.Content, nil
+}
diff --git a/models/system/main_test.go b/models/system/main_test.go
new file mode 100644
index 0000000..6bc27a7
--- /dev/null
+++ b/models/system/main_test.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models" // register models
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/system" // register models of system
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/system/notice.go b/models/system/notice.go
new file mode 100644
index 0000000..e7ec6a9
--- /dev/null
+++ b/models/system/notice.go
@@ -0,0 +1,128 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/storage"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// NoticeType describes the notice type
+type NoticeType int
+
+const (
+	// NoticeRepository type
+	NoticeRepository NoticeType = iota + 1
+	// NoticeTask type
+	NoticeTask
+)
+
+// Notice represents a system notice for admin.
+type Notice struct {
+	ID          int64 `xorm:"pk autoincr"`
+	Type        NoticeType
+	Description string             `xorm:"TEXT"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+func init() {
+	db.RegisterModel(new(Notice))
+}
+
+// TrStr returns a translation format string.
+func (n *Notice) TrStr() string {
+	return fmt.Sprintf("admin.notices.type_%d", n.Type)
+}
+
+// CreateNotice creates new system notice.
+func CreateNotice(ctx context.Context, tp NoticeType, desc string, args ...any) error {
+	if len(args) > 0 {
+		desc = fmt.Sprintf(desc, args...)
+	}
+	n := &Notice{
+		Type:        tp,
+		Description: desc,
+	}
+	return db.Insert(ctx, n)
+}
+
+// CreateRepositoryNotice creates new system notice with type NoticeRepository.
+func CreateRepositoryNotice(desc string, args ...any) error {
+	// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+	return CreateNotice(db.DefaultContext, NoticeRepository, desc, args...)
+}
+
+// RemoveAllWithNotice removes all directories in given path and
+// creates a system notice when error occurs.
+func RemoveAllWithNotice(ctx context.Context, title, path string) {
+	if err := util.RemoveAll(path); err != nil {
+		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
+		log.Warn(title+" [%s]: %v", path, err)
+		// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+		if err = CreateNotice(db.DefaultContext, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// RemoveStorageWithNotice removes a file from the storage and
+// creates a system notice when error occurs.
+func RemoveStorageWithNotice(ctx context.Context, bucket storage.ObjectStorage, title, path string) {
+	if err := bucket.Delete(path); err != nil {
+		desc := fmt.Sprintf("%s [%s]: %v", title, path, err)
+		log.Warn(title+" [%s]: %v", path, err)
+
+		// Note we use the db.DefaultContext here rather than passing in a context as the context may be cancelled
+		if err = CreateNotice(db.DefaultContext, NoticeRepository, desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+	}
+}
+
+// CountNotices returns number of notices.
+func CountNotices(ctx context.Context) int64 {
+	count, _ := db.GetEngine(ctx).Count(new(Notice))
+	return count
+}
+
+// Notices returns notices in given page.
+func Notices(ctx context.Context, page, pageSize int) ([]*Notice, error) {
+	notices := make([]*Notice, 0, pageSize)
+	return notices, db.GetEngine(ctx).
+		Limit(pageSize, (page-1)*pageSize).
+		Desc("created_unix").
+		Find(&notices)
+}
+
+// DeleteNotices deletes all notices with ID from start to end (inclusive).
+func DeleteNotices(ctx context.Context, start, end int64) error {
+	if start == 0 && end == 0 {
+		_, err := db.GetEngine(ctx).Exec("DELETE FROM notice")
+		return err
+	}
+
+	sess := db.GetEngine(ctx).Where("id >= ?", start)
+	if end > 0 {
+		sess.And("id <= ?", end)
+	}
+	_, err := sess.Delete(new(Notice))
+	return err
+}
+
+// DeleteOldSystemNotices deletes all old system notices from database.
+func DeleteOldSystemNotices(ctx context.Context, olderThan time.Duration) (err error) {
+	if olderThan <= 0 {
+		return nil
+	}
+
+	_, err = db.GetEngine(ctx).Where("created_unix < ?", time.Now().Add(-olderThan).Unix()).Delete(&Notice{})
+	return err
+}
diff --git a/models/system/notice_test.go b/models/system/notice_test.go
new file mode 100644
index 0000000..bfb7862
--- /dev/null
+++ b/models/system/notice_test.go
@@ -0,0 +1,110 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNotice_TrStr(t *testing.T) {
+	notice := &system.Notice{
+		Type:        system.NoticeRepository,
+		Description: "test description",
+	}
+	assert.Equal(t, "admin.notices.type_1", notice.TrStr())
+}
+
+func TestCreateNotice(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	noticeBean := &system.Notice{
+		Type:        system.NoticeRepository,
+		Description: "test description",
+	}
+	unittest.AssertNotExistsBean(t, noticeBean)
+	require.NoError(t, system.CreateNotice(db.DefaultContext, noticeBean.Type, noticeBean.Description))
+	unittest.AssertExistsAndLoadBean(t, noticeBean)
+}
+
+func TestCreateRepositoryNotice(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	noticeBean := &system.Notice{
+		Type:        system.NoticeRepository,
+		Description: "test description",
+	}
+	unittest.AssertNotExistsBean(t, noticeBean)
+	require.NoError(t, system.CreateRepositoryNotice(noticeBean.Description))
+	unittest.AssertExistsAndLoadBean(t, noticeBean)
+}
+
+// TODO TestRemoveAllWithNotice
+
+func TestCountNotices(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.Equal(t, int64(3), system.CountNotices(db.DefaultContext))
+}
+
+func TestNotices(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	notices, err := system.Notices(db.DefaultContext, 1, 2)
+	require.NoError(t, err)
+	if assert.Len(t, notices, 2) {
+		assert.Equal(t, int64(3), notices[0].ID)
+		assert.Equal(t, int64(2), notices[1].ID)
+	}
+
+	notices, err = system.Notices(db.DefaultContext, 2, 2)
+	require.NoError(t, err)
+	if assert.Len(t, notices, 1) {
+		assert.Equal(t, int64(1), notices[0].ID)
+	}
+}
+
+func TestDeleteNotices(t *testing.T) {
+	// delete a non-empty range
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 2})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 3})
+	require.NoError(t, system.DeleteNotices(db.DefaultContext, 1, 2))
+	unittest.AssertNotExistsBean(t, &system.Notice{ID: 1})
+	unittest.AssertNotExistsBean(t, &system.Notice{ID: 2})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 3})
+}
+
+func TestDeleteNotices2(t *testing.T) {
+	// delete an empty range
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 2})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 3})
+	require.NoError(t, system.DeleteNotices(db.DefaultContext, 3, 2))
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 2})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 3})
+}
+
+func TestDeleteNoticesByIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 2})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 3})
+	err := db.DeleteByIDs[system.Notice](db.DefaultContext, 1, 3)
+	require.NoError(t, err)
+	unittest.AssertNotExistsBean(t, &system.Notice{ID: 1})
+	unittest.AssertExistsAndLoadBean(t, &system.Notice{ID: 2})
+	unittest.AssertNotExistsBean(t, &system.Notice{ID: 3})
+}
diff --git a/models/system/setting.go b/models/system/setting.go
new file mode 100644
index 0000000..4472b4c
--- /dev/null
+++ b/models/system/setting.go
@@ -0,0 +1,152 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system
+
+import (
+	"context"
+	"math"
+	"sync"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting/config"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/builder"
+)
+
+type Setting struct {
+	ID           int64              `xorm:"pk autoincr"`
+	SettingKey   string             `xorm:"varchar(255) unique"` // key should be lowercase
+	SettingValue string             `xorm:"text"`
+	Version      int                `xorm:"version"`
+	Created      timeutil.TimeStamp `xorm:"created"`
+	Updated      timeutil.TimeStamp `xorm:"updated"`
+}
+
+// TableName sets the table name for the settings struct
+func (s *Setting) TableName() string {
+	return "system_setting"
+}
+
+func init() {
+	db.RegisterModel(new(Setting))
+}
+
+const keyRevision = "revision"
+
+func GetRevision(ctx context.Context) int {
+	revision, exist, err := db.Get[Setting](ctx, builder.Eq{"setting_key": keyRevision})
+	if err != nil {
+		return 0
+	} else if !exist {
+		err = db.Insert(ctx, &Setting{SettingKey: keyRevision, Version: 1})
+		if err != nil {
+			return 0
+		}
+		return 1
+	}
+	if revision.Version <= 0 || revision.Version >= math.MaxInt-1 {
+		_, err = db.Exec(ctx, "UPDATE system_setting SET version=1 WHERE setting_key=?", keyRevision)
+		if err != nil {
+			return 0
+		}
+		return 1
+	}
+	return revision.Version
+}
+
+func GetAllSettings(ctx context.Context) (revision int, res map[string]string, err error) {
+	_ = GetRevision(ctx) // prepare the "revision" key ahead
+	var settings []*Setting
+	if err := db.GetEngine(ctx).
+		Find(&settings); err != nil {
+		return 0, nil, err
+	}
+	res = make(map[string]string)
+	for _, s := range settings {
+		if s.SettingKey == keyRevision {
+			revision = s.Version
+		}
+		res[s.SettingKey] = s.SettingValue
+	}
+	return revision, res, nil
+}
+
+func SetSettings(ctx context.Context, settings map[string]string) error {
+	_ = GetRevision(ctx) // prepare the "revision" key ahead
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		e := db.GetEngine(ctx)
+		_, err := db.Exec(ctx, "UPDATE system_setting SET version=version+1 WHERE setting_key=?", keyRevision)
+		if err != nil {
+			return err
+		}
+		for k, v := range settings {
+			res, err := e.Exec("UPDATE system_setting SET version=version+1, setting_value=? WHERE setting_key=?", v, k)
+			if err != nil {
+				return err
+			}
+			rows, _ := res.RowsAffected()
+			if rows == 0 { // if no existing row, insert a new row
+				if _, err = e.Insert(&Setting{SettingKey: k, SettingValue: v}); err != nil {
+					return err
+				}
+			}
+		}
+		return nil
+	})
+}
+
+type dbConfigCachedGetter struct {
+	mu sync.RWMutex
+
+	cacheTime time.Time
+	revision  int
+	settings  map[string]string
+}
+
+var _ config.DynKeyGetter = (*dbConfigCachedGetter)(nil)
+
+func (d *dbConfigCachedGetter) GetValue(ctx context.Context, key string) (v string, has bool) {
+	d.mu.RLock()
+	defer d.mu.RUnlock()
+	v, has = d.settings[key]
+	return v, has
+}
+
+func (d *dbConfigCachedGetter) GetRevision(ctx context.Context) int {
+	d.mu.RLock()
+	cachedDuration := time.Since(d.cacheTime)
+	cachedRevision := d.revision
+	d.mu.RUnlock()
+
+	if cachedDuration < time.Second {
+		return cachedRevision
+	}
+
+	d.mu.Lock()
+	defer d.mu.Unlock()
+	if GetRevision(ctx) != d.revision {
+		rev, set, err := GetAllSettings(ctx)
+		if err != nil {
+			log.Error("Unable to get all settings: %v", err)
+		} else {
+			d.revision = rev
+			d.settings = set
+		}
+	}
+	d.cacheTime = time.Now()
+	return d.revision
+}
+
+func (d *dbConfigCachedGetter) InvalidateCache() {
+	d.mu.Lock()
+	d.cacheTime = time.Time{}
+	d.mu.Unlock()
+}
+
+func NewDatabaseDynKeyGetter() config.DynKeyGetter {
+	return &dbConfigCachedGetter{}
+}
diff --git a/models/system/setting_test.go b/models/system/setting_test.go
new file mode 100644
index 0000000..7a7fa02
--- /dev/null
+++ b/models/system/setting_test.go
@@ -0,0 +1,52 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package system_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/models/unittest"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSettings(t *testing.T) {
+	keyName := "test.key"
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	require.NoError(t, db.TruncateBeans(db.DefaultContext, &system.Setting{}))
+
+	rev, settings, err := system.GetAllSettings(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, rev)
+	assert.Len(t, settings, 1) // there is only one "revision" key
+
+	err = system.SetSettings(db.DefaultContext, map[string]string{keyName: "true"})
+	require.NoError(t, err)
+	rev, settings, err = system.GetAllSettings(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 2, rev)
+	assert.Len(t, settings, 2)
+	assert.EqualValues(t, "true", settings[keyName])
+
+	err = system.SetSettings(db.DefaultContext, map[string]string{keyName: "false"})
+	require.NoError(t, err)
+	rev, settings, err = system.GetAllSettings(db.DefaultContext)
+	require.NoError(t, err)
+	assert.EqualValues(t, 3, rev)
+	assert.Len(t, settings, 2)
+	assert.EqualValues(t, "false", settings[keyName])
+
+	// setting the same value should not trigger DuplicateKey error, and the "version" should be increased
+	err = system.SetSettings(db.DefaultContext, map[string]string{keyName: "false"})
+	require.NoError(t, err)
+
+	rev, settings, err = system.GetAllSettings(db.DefaultContext)
+	require.NoError(t, err)
+	assert.Len(t, settings, 2)
+	assert.EqualValues(t, 4, rev)
+}
diff --git a/models/unit/unit.go b/models/unit/unit.go
new file mode 100644
index 0000000..5a8b911
--- /dev/null
+++ b/models/unit/unit.go
@@ -0,0 +1,437 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unit
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+	"sync/atomic"
+
+	"code.gitea.io/gitea/models/perm"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// Type is Unit's Type
+type Type int
+
+// Enumerate all the unit types
+const (
+	TypeInvalid         Type = iota // 0 invalid
+	TypeCode                        // 1 code
+	TypeIssues                      // 2 issues
+	TypePullRequests                // 3 PRs
+	TypeReleases                    // 4 Releases
+	TypeWiki                        // 5 Wiki
+	TypeExternalWiki                // 6 ExternalWiki
+	TypeExternalTracker             // 7 ExternalTracker
+	TypeProjects                    // 8 Projects
+	TypePackages                    // 9 Packages
+	TypeActions                     // 10 Actions
+)
+
+// Value returns integer value for unit type
+func (u Type) Value() int {
+	return int(u)
+}
+
+func (u Type) String() string {
+	switch u {
+	case TypeCode:
+		return "TypeCode"
+	case TypeIssues:
+		return "TypeIssues"
+	case TypePullRequests:
+		return "TypePullRequests"
+	case TypeReleases:
+		return "TypeReleases"
+	case TypeWiki:
+		return "TypeWiki"
+	case TypeExternalWiki:
+		return "TypeExternalWiki"
+	case TypeExternalTracker:
+		return "TypeExternalTracker"
+	case TypeProjects:
+		return "TypeProjects"
+	case TypePackages:
+		return "TypePackages"
+	case TypeActions:
+		return "TypeActions"
+	}
+	return fmt.Sprintf("Unknown Type %d", u)
+}
+
+func (u Type) LogString() string {
+	return fmt.Sprintf("<UnitType:%d:%s>", u, u.String())
+}
+
+var (
+	// AllRepoUnitTypes contains all the unit types
+	AllRepoUnitTypes = []Type{
+		TypeCode,
+		TypeIssues,
+		TypePullRequests,
+		TypeReleases,
+		TypeWiki,
+		TypeExternalWiki,
+		TypeExternalTracker,
+		TypeProjects,
+		TypePackages,
+		TypeActions,
+	}
+
+	// DefaultRepoUnits contains the default unit types
+	DefaultRepoUnits = []Type{
+		TypeCode,
+		TypeIssues,
+		TypePullRequests,
+		TypeReleases,
+		TypeWiki,
+		TypeProjects,
+		TypePackages,
+		TypeActions,
+	}
+
+	// ForkRepoUnits contains the default unit types for forks
+	DefaultForkRepoUnits = []Type{
+		TypeCode,
+		TypePullRequests,
+	}
+
+	// NotAllowedDefaultRepoUnits contains units that can't be default
+	NotAllowedDefaultRepoUnits = []Type{
+		TypeExternalWiki,
+		TypeExternalTracker,
+	}
+
+	disabledRepoUnitsAtomic atomic.Pointer[[]Type] // the units that have been globally disabled
+
+	// AllowedRepoUnitGroups contains the units that have been globally enabled,
+	// with mutually exclusive units grouped together.
+	AllowedRepoUnitGroups = [][]Type{}
+)
+
+// DisabledRepoUnitsGet returns the globally disabled units, it is a quick patch to fix data-race during testing.
+// Because the queue worker might read when a test is mocking the value. FIXME: refactor to a clear solution later.
+func DisabledRepoUnitsGet() []Type {
+	v := disabledRepoUnitsAtomic.Load()
+	if v == nil {
+		return nil
+	}
+	return *v
+}
+
+func DisabledRepoUnitsSet(v []Type) {
+	disabledRepoUnitsAtomic.Store(&v)
+}
+
+// Get valid set of default repository units from settings
+func validateDefaultRepoUnits(defaultUnits, settingDefaultUnits []Type) []Type {
+	units := defaultUnits
+
+	// Use setting if not empty
+	if len(settingDefaultUnits) > 0 {
+		units = make([]Type, 0, len(settingDefaultUnits))
+		for _, settingUnit := range settingDefaultUnits {
+			if !settingUnit.CanBeDefault() {
+				log.Warn("Not allowed as default unit: %s", settingUnit.String())
+				continue
+			}
+			units = append(units, settingUnit)
+		}
+	}
+
+	// Remove disabled units
+	for _, disabledUnit := range DisabledRepoUnitsGet() {
+		for i, unit := range units {
+			if unit == disabledUnit {
+				units = append(units[:i], units[i+1:]...)
+			}
+		}
+	}
+
+	return units
+}
+
+// LoadUnitConfig load units from settings
+func LoadUnitConfig() error {
+	disabledRepoUnits, invalidKeys := FindUnitTypes(setting.Repository.DisabledRepoUnits...)
+	if len(invalidKeys) > 0 {
+		log.Warn("Invalid keys in disabled repo units: %s", strings.Join(invalidKeys, ", "))
+	}
+	DisabledRepoUnitsSet(disabledRepoUnits)
+
+	setDefaultRepoUnits, invalidKeys := FindUnitTypes(setting.Repository.DefaultRepoUnits...)
+	if len(invalidKeys) > 0 {
+		log.Warn("Invalid keys in default repo units: %s", strings.Join(invalidKeys, ", "))
+	}
+	DefaultRepoUnits = validateDefaultRepoUnits(DefaultRepoUnits, setDefaultRepoUnits)
+	if len(DefaultRepoUnits) == 0 {
+		return errors.New("no default repository units found")
+	}
+	setDefaultForkRepoUnits, invalidKeys := FindUnitTypes(setting.Repository.DefaultForkRepoUnits...)
+	if len(invalidKeys) > 0 {
+		log.Warn("Invalid keys in default fork repo units: %s", strings.Join(invalidKeys, ", "))
+	}
+	DefaultForkRepoUnits = validateDefaultRepoUnits(DefaultForkRepoUnits, setDefaultForkRepoUnits)
+	if len(DefaultForkRepoUnits) == 0 {
+		return errors.New("no default fork repository units found")
+	}
+
+	// Collect the allowed repo unit groups. Mutually exclusive units are
+	// grouped together.
+	AllowedRepoUnitGroups = [][]Type{}
+	for _, unit := range []Type{
+		TypeCode,
+		TypePullRequests,
+		TypeProjects,
+		TypePackages,
+		TypeActions,
+	} {
+		// If unit is globally disabled, ignore it.
+		if unit.UnitGlobalDisabled() {
+			continue
+		}
+
+		// If it is allowed, add it to the group list.
+		AllowedRepoUnitGroups = append(AllowedRepoUnitGroups, []Type{unit})
+	}
+
+	addMutuallyExclusiveGroup := func(unit1, unit2 Type) {
+		var list []Type
+
+		if !unit1.UnitGlobalDisabled() {
+			list = append(list, unit1)
+		}
+
+		if !unit2.UnitGlobalDisabled() {
+			list = append(list, unit2)
+		}
+
+		if len(list) > 0 {
+			AllowedRepoUnitGroups = append(AllowedRepoUnitGroups, list)
+		}
+	}
+
+	addMutuallyExclusiveGroup(TypeIssues, TypeExternalTracker)
+	addMutuallyExclusiveGroup(TypeWiki, TypeExternalWiki)
+
+	return nil
+}
+
+// UnitGlobalDisabled checks if unit type is global disabled
+func (u Type) UnitGlobalDisabled() bool {
+	for _, ud := range DisabledRepoUnitsGet() {
+		if u == ud {
+			return true
+		}
+	}
+	return false
+}
+
+// CanBeDefault checks if the unit type can be a default repo unit
+func (u *Type) CanBeDefault() bool {
+	for _, nadU := range NotAllowedDefaultRepoUnits {
+		if *u == nadU {
+			return false
+		}
+	}
+	return true
+}
+
+// Unit is a section of one repository
+type Unit struct {
+	Type          Type
+	Name          string
+	NameKey       string
+	URI           string
+	DescKey       string
+	Idx           int
+	MaxAccessMode perm.AccessMode // The max access mode of the unit. i.e. Read means this unit can only be read.
+}
+
+// IsLessThan compares order of two units
+func (u Unit) IsLessThan(unit Unit) bool {
+	if (u.Type == TypeExternalTracker || u.Type == TypeExternalWiki) && unit.Type != TypeExternalTracker && unit.Type != TypeExternalWiki {
+		return false
+	}
+	return u.Idx < unit.Idx
+}
+
+// MaxPerm returns the max perms of this unit
+func (u Unit) MaxPerm() perm.AccessMode {
+	if u.Type == TypeExternalTracker || u.Type == TypeExternalWiki {
+		return perm.AccessModeRead
+	}
+	return perm.AccessModeAdmin
+}
+
+// Enumerate all the units
+var (
+	UnitCode = Unit{
+		TypeCode,
+		"code",
+		"repo.code",
+		"/",
+		"repo.code.desc",
+		0,
+		perm.AccessModeOwner,
+	}
+
+	UnitIssues = Unit{
+		TypeIssues,
+		"issues",
+		"repo.issues",
+		"/issues",
+		"repo.issues.desc",
+		1,
+		perm.AccessModeOwner,
+	}
+
+	UnitExternalTracker = Unit{
+		TypeExternalTracker,
+		"ext_issues",
+		"repo.ext_issues",
+		"/issues",
+		"repo.ext_issues.desc",
+		1,
+		perm.AccessModeRead,
+	}
+
+	UnitPullRequests = Unit{
+		TypePullRequests,
+		"pulls",
+		"repo.pulls",
+		"/pulls",
+		"repo.pulls.desc",
+		2,
+		perm.AccessModeOwner,
+	}
+
+	UnitReleases = Unit{
+		TypeReleases,
+		"releases",
+		"repo.releases",
+		"/releases",
+		"repo.releases.desc",
+		3,
+		perm.AccessModeOwner,
+	}
+
+	UnitWiki = Unit{
+		TypeWiki,
+		"wiki",
+		"repo.wiki",
+		"/wiki",
+		"repo.wiki.desc",
+		4,
+		perm.AccessModeOwner,
+	}
+
+	UnitExternalWiki = Unit{
+		TypeExternalWiki,
+		"ext_wiki",
+		"repo.ext_wiki",
+		"/wiki",
+		"repo.ext_wiki.desc",
+		4,
+		perm.AccessModeRead,
+	}
+
+	UnitProjects = Unit{
+		TypeProjects,
+		"projects",
+		"repo.projects",
+		"/projects",
+		"repo.projects.desc",
+		5,
+		perm.AccessModeOwner,
+	}
+
+	UnitPackages = Unit{
+		TypePackages,
+		"packages",
+		"repo.packages",
+		"/packages",
+		"packages.desc",
+		6,
+		perm.AccessModeRead,
+	}
+
+	UnitActions = Unit{
+		TypeActions,
+		"actions",
+		"repo.actions",
+		"/actions",
+		"actions.unit.desc",
+		7,
+		perm.AccessModeOwner,
+	}
+
+	// Units contains all the units
+	Units = map[Type]Unit{
+		TypeCode:            UnitCode,
+		TypeIssues:          UnitIssues,
+		TypeExternalTracker: UnitExternalTracker,
+		TypePullRequests:    UnitPullRequests,
+		TypeReleases:        UnitReleases,
+		TypeWiki:            UnitWiki,
+		TypeExternalWiki:    UnitExternalWiki,
+		TypeProjects:        UnitProjects,
+		TypePackages:        UnitPackages,
+		TypeActions:         UnitActions,
+	}
+)
+
+// FindUnitTypes give the unit key names and return valid unique units and invalid keys
+func FindUnitTypes(nameKeys ...string) (res []Type, invalidKeys []string) {
+	m := make(container.Set[Type])
+	for _, key := range nameKeys {
+		t := TypeFromKey(key)
+		if t == TypeInvalid {
+			invalidKeys = append(invalidKeys, key)
+		} else if m.Add(t) {
+			res = append(res, t)
+		}
+	}
+	return res, invalidKeys
+}
+
+// TypeFromKey give the unit key name and return unit
+func TypeFromKey(nameKey string) Type {
+	for t, u := range Units {
+		if strings.EqualFold(nameKey, u.NameKey) {
+			return t
+		}
+	}
+	return TypeInvalid
+}
+
+// AllUnitKeyNames returns all unit key names
+func AllUnitKeyNames() []string {
+	res := make([]string, 0, len(Units))
+	for _, u := range Units {
+		res = append(res, u.NameKey)
+	}
+	return res
+}
+
+// MinUnitAccessMode returns the minial permission of the permission map
+func MinUnitAccessMode(unitsMap map[Type]perm.AccessMode) perm.AccessMode {
+	res := perm.AccessModeNone
+	for t, mode := range unitsMap {
+		// Don't allow `TypeExternal{Tracker,Wiki}` to influence this as they can only be set to READ perms.
+		if t == TypeExternalTracker || t == TypeExternalWiki {
+			continue
+		}
+
+		// get the minial permission great than AccessModeNone except all are AccessModeNone
+		if mode > perm.AccessModeNone && (res == perm.AccessModeNone || mode < res) {
+			res = mode
+		}
+	}
+	return res
+}
diff --git a/models/unit/unit_test.go b/models/unit/unit_test.go
new file mode 100644
index 0000000..a739677
--- /dev/null
+++ b/models/unit/unit_test.go
@@ -0,0 +1,96 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unit
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLoadUnitConfig(t *testing.T) {
+	t.Run("regular", func(t *testing.T) {
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []Type) {
+			DisabledRepoUnitsSet(disabledRepoUnits)
+			DefaultRepoUnits = defaultRepoUnits
+			DefaultForkRepoUnits = defaultForkRepoUnits
+		}(DisabledRepoUnitsGet(), DefaultRepoUnits, DefaultForkRepoUnits)
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []string) {
+			setting.Repository.DisabledRepoUnits = disabledRepoUnits
+			setting.Repository.DefaultRepoUnits = defaultRepoUnits
+			setting.Repository.DefaultForkRepoUnits = defaultForkRepoUnits
+		}(setting.Repository.DisabledRepoUnits, setting.Repository.DefaultRepoUnits, setting.Repository.DefaultForkRepoUnits)
+
+		setting.Repository.DisabledRepoUnits = []string{"repo.issues"}
+		setting.Repository.DefaultRepoUnits = []string{"repo.code", "repo.releases", "repo.issues", "repo.pulls"}
+		setting.Repository.DefaultForkRepoUnits = []string{"repo.releases"}
+		require.NoError(t, LoadUnitConfig())
+		assert.Equal(t, []Type{TypeIssues}, DisabledRepoUnitsGet())
+		assert.Equal(t, []Type{TypeCode, TypeReleases, TypePullRequests}, DefaultRepoUnits)
+		assert.Equal(t, []Type{TypeReleases}, DefaultForkRepoUnits)
+	})
+	t.Run("invalid", func(t *testing.T) {
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []Type) {
+			DisabledRepoUnitsSet(disabledRepoUnits)
+			DefaultRepoUnits = defaultRepoUnits
+			DefaultForkRepoUnits = defaultForkRepoUnits
+		}(DisabledRepoUnitsGet(), DefaultRepoUnits, DefaultForkRepoUnits)
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []string) {
+			setting.Repository.DisabledRepoUnits = disabledRepoUnits
+			setting.Repository.DefaultRepoUnits = defaultRepoUnits
+			setting.Repository.DefaultForkRepoUnits = defaultForkRepoUnits
+		}(setting.Repository.DisabledRepoUnits, setting.Repository.DefaultRepoUnits, setting.Repository.DefaultForkRepoUnits)
+
+		setting.Repository.DisabledRepoUnits = []string{"repo.issues", "invalid.1"}
+		setting.Repository.DefaultRepoUnits = []string{"repo.code", "invalid.2", "repo.releases", "repo.issues", "repo.pulls"}
+		setting.Repository.DefaultForkRepoUnits = []string{"invalid.3", "repo.releases"}
+		require.NoError(t, LoadUnitConfig())
+		assert.Equal(t, []Type{TypeIssues}, DisabledRepoUnitsGet())
+		assert.Equal(t, []Type{TypeCode, TypeReleases, TypePullRequests}, DefaultRepoUnits)
+		assert.Equal(t, []Type{TypeReleases}, DefaultForkRepoUnits)
+	})
+	t.Run("duplicate", func(t *testing.T) {
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []Type) {
+			DisabledRepoUnitsSet(disabledRepoUnits)
+			DefaultRepoUnits = defaultRepoUnits
+			DefaultForkRepoUnits = defaultForkRepoUnits
+		}(DisabledRepoUnitsGet(), DefaultRepoUnits, DefaultForkRepoUnits)
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []string) {
+			setting.Repository.DisabledRepoUnits = disabledRepoUnits
+			setting.Repository.DefaultRepoUnits = defaultRepoUnits
+			setting.Repository.DefaultForkRepoUnits = defaultForkRepoUnits
+		}(setting.Repository.DisabledRepoUnits, setting.Repository.DefaultRepoUnits, setting.Repository.DefaultForkRepoUnits)
+
+		setting.Repository.DisabledRepoUnits = []string{"repo.issues", "repo.issues"}
+		setting.Repository.DefaultRepoUnits = []string{"repo.code", "repo.releases", "repo.issues", "repo.pulls", "repo.code"}
+		setting.Repository.DefaultForkRepoUnits = []string{"repo.releases", "repo.releases"}
+		require.NoError(t, LoadUnitConfig())
+		assert.Equal(t, []Type{TypeIssues}, DisabledRepoUnitsGet())
+		assert.Equal(t, []Type{TypeCode, TypeReleases, TypePullRequests}, DefaultRepoUnits)
+		assert.Equal(t, []Type{TypeReleases}, DefaultForkRepoUnits)
+	})
+	t.Run("empty_default", func(t *testing.T) {
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []Type) {
+			DisabledRepoUnitsSet(disabledRepoUnits)
+			DefaultRepoUnits = defaultRepoUnits
+			DefaultForkRepoUnits = defaultForkRepoUnits
+		}(DisabledRepoUnitsGet(), DefaultRepoUnits, DefaultForkRepoUnits)
+		defer func(disabledRepoUnits, defaultRepoUnits, defaultForkRepoUnits []string) {
+			setting.Repository.DisabledRepoUnits = disabledRepoUnits
+			setting.Repository.DefaultRepoUnits = defaultRepoUnits
+			setting.Repository.DefaultForkRepoUnits = defaultForkRepoUnits
+		}(setting.Repository.DisabledRepoUnits, setting.Repository.DefaultRepoUnits, setting.Repository.DefaultForkRepoUnits)
+
+		setting.Repository.DisabledRepoUnits = []string{"repo.issues", "repo.issues"}
+		setting.Repository.DefaultRepoUnits = []string{}
+		setting.Repository.DefaultForkRepoUnits = []string{"repo.releases", "repo.releases"}
+		require.NoError(t, LoadUnitConfig())
+		assert.Equal(t, []Type{TypeIssues}, DisabledRepoUnitsGet())
+		assert.ElementsMatch(t, []Type{TypeCode, TypePullRequests, TypeReleases, TypeWiki, TypePackages, TypeProjects, TypeActions}, DefaultRepoUnits)
+		assert.Equal(t, []Type{TypeReleases}, DefaultForkRepoUnits)
+	})
+}
diff --git a/models/unittest/consistency.go b/models/unittest/consistency.go
new file mode 100644
index 0000000..4e26de7
--- /dev/null
+++ b/models/unittest/consistency.go
@@ -0,0 +1,192 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"reflect"
+	"strconv"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/builder"
+)
+
+const (
+	// these const values are copied from `models` package to prevent from cycle-import
+	modelsUserTypeOrganization = 1
+	modelsRepoWatchModeDont    = 2
+	modelsCommentTypeComment   = 0
+)
+
+var consistencyCheckMap = make(map[string]func(t *testing.T, bean any))
+
+// CheckConsistencyFor test that all matching database entries are consistent
+func CheckConsistencyFor(t *testing.T, beansToCheck ...any) {
+	for _, bean := range beansToCheck {
+		sliceType := reflect.SliceOf(reflect.TypeOf(bean))
+		sliceValue := reflect.MakeSlice(sliceType, 0, 10)
+
+		ptrToSliceValue := reflect.New(sliceType)
+		ptrToSliceValue.Elem().Set(sliceValue)
+
+		require.NoError(t, db.GetEngine(db.DefaultContext).Table(bean).Find(ptrToSliceValue.Interface()))
+		sliceValue = ptrToSliceValue.Elem()
+
+		for i := 0; i < sliceValue.Len(); i++ {
+			entity := sliceValue.Index(i).Interface()
+			checkForConsistency(t, entity)
+		}
+	}
+}
+
+func checkForConsistency(t *testing.T, bean any) {
+	tb, err := db.TableInfo(bean)
+	require.NoError(t, err)
+	f := consistencyCheckMap[tb.Name]
+	if f == nil {
+		assert.FailNow(t, "unknown bean type: %#v", bean)
+	}
+	f(t, bean)
+}
+
+func init() {
+	parseBool := func(v string) bool {
+		b, _ := strconv.ParseBool(v)
+		return b
+	}
+	parseInt := func(v string) int {
+		i, _ := strconv.Atoi(v)
+		return i
+	}
+
+	checkForUserConsistency := func(t *testing.T, bean any) {
+		user := reflectionWrap(bean)
+		AssertCountByCond(t, "repository", builder.Eq{"owner_id": user.int("ID")}, user.int("NumRepos"))
+		AssertCountByCond(t, "star", builder.Eq{"uid": user.int("ID")}, user.int("NumStars"))
+		AssertCountByCond(t, "org_user", builder.Eq{"org_id": user.int("ID")}, user.int("NumMembers"))
+		AssertCountByCond(t, "team", builder.Eq{"org_id": user.int("ID")}, user.int("NumTeams"))
+		AssertCountByCond(t, "follow", builder.Eq{"user_id": user.int("ID")}, user.int("NumFollowing"))
+		AssertCountByCond(t, "follow", builder.Eq{"follow_id": user.int("ID")}, user.int("NumFollowers"))
+		if user.int("Type") != modelsUserTypeOrganization {
+			assert.EqualValues(t, 0, user.int("NumMembers"), "Unexpected number of members for user id: %d", user.int("ID"))
+			assert.EqualValues(t, 0, user.int("NumTeams"), "Unexpected number of teams for user id: %d", user.int("ID"))
+		}
+	}
+
+	checkForRepoConsistency := func(t *testing.T, bean any) {
+		repo := reflectionWrap(bean)
+		assert.Equal(t, repo.str("LowerName"), strings.ToLower(repo.str("Name")), "repo: %+v", repo)
+		AssertCountByCond(t, "star", builder.Eq{"repo_id": repo.int("ID")}, repo.int("NumStars"))
+		AssertCountByCond(t, "milestone", builder.Eq{"repo_id": repo.int("ID")}, repo.int("NumMilestones"))
+		AssertCountByCond(t, "repository", builder.Eq{"fork_id": repo.int("ID")}, repo.int("NumForks"))
+		if repo.bool("IsFork") {
+			AssertExistsAndLoadMap(t, "repository", builder.Eq{"id": repo.int("ForkID")})
+		}
+
+		actual := GetCountByCond(t, "watch", builder.Eq{"repo_id": repo.int("ID")}.
+			And(builder.Neq{"mode": modelsRepoWatchModeDont}))
+		assert.EqualValues(t, repo.int("NumWatches"), actual,
+			"Unexpected number of watches for repo id: %d", repo.int("ID"))
+
+		actual = GetCountByCond(t, "issue", builder.Eq{"is_pull": false, "repo_id": repo.int("ID")})
+		assert.EqualValues(t, repo.int("NumIssues"), actual,
+			"Unexpected number of issues for repo id: %d", repo.int("ID"))
+
+		actual = GetCountByCond(t, "issue", builder.Eq{"is_pull": false, "is_closed": true, "repo_id": repo.int("ID")})
+		assert.EqualValues(t, repo.int("NumClosedIssues"), actual,
+			"Unexpected number of closed issues for repo id: %d", repo.int("ID"))
+
+		actual = GetCountByCond(t, "issue", builder.Eq{"is_pull": true, "repo_id": repo.int("ID")})
+		assert.EqualValues(t, repo.int("NumPulls"), actual,
+			"Unexpected number of pulls for repo id: %d", repo.int("ID"))
+
+		actual = GetCountByCond(t, "issue", builder.Eq{"is_pull": true, "is_closed": true, "repo_id": repo.int("ID")})
+		assert.EqualValues(t, repo.int("NumClosedPulls"), actual,
+			"Unexpected number of closed pulls for repo id: %d", repo.int("ID"))
+
+		actual = GetCountByCond(t, "milestone", builder.Eq{"is_closed": true, "repo_id": repo.int("ID")})
+		assert.EqualValues(t, repo.int("NumClosedMilestones"), actual,
+			"Unexpected number of closed milestones for repo id: %d", repo.int("ID"))
+	}
+
+	checkForIssueConsistency := func(t *testing.T, bean any) {
+		issue := reflectionWrap(bean)
+		typeComment := modelsCommentTypeComment
+		actual := GetCountByCond(t, "comment", builder.Eq{"`type`": typeComment, "issue_id": issue.int("ID")})
+		assert.EqualValues(t, issue.int("NumComments"), actual, "Unexpected number of comments for issue id: %d", issue.int("ID"))
+		if issue.bool("IsPull") {
+			prRow := AssertExistsAndLoadMap(t, "pull_request", builder.Eq{"issue_id": issue.int("ID")})
+			assert.EqualValues(t, parseInt(prRow["index"]), issue.int("Index"), "Unexpected index for issue id: %d", issue.int("ID"))
+		}
+	}
+
+	checkForPullRequestConsistency := func(t *testing.T, bean any) {
+		pr := reflectionWrap(bean)
+		issueRow := AssertExistsAndLoadMap(t, "issue", builder.Eq{"id": pr.int("IssueID")})
+		assert.True(t, parseBool(issueRow["is_pull"]))
+		assert.EqualValues(t, parseInt(issueRow["index"]), pr.int("Index"), "Unexpected index for pull request id: %d", pr.int("ID"))
+	}
+
+	checkForMilestoneConsistency := func(t *testing.T, bean any) {
+		milestone := reflectionWrap(bean)
+		AssertCountByCond(t, "issue", builder.Eq{"milestone_id": milestone.int("ID")}, milestone.int("NumIssues"))
+
+		actual := GetCountByCond(t, "issue", builder.Eq{"is_closed": true, "milestone_id": milestone.int("ID")})
+		assert.EqualValues(t, milestone.int("NumClosedIssues"), actual, "Unexpected number of closed issues for milestone id: %d", milestone.int("ID"))
+
+		completeness := 0
+		if milestone.int("NumIssues") > 0 {
+			completeness = milestone.int("NumClosedIssues") * 100 / milestone.int("NumIssues")
+		}
+		assert.Equal(t, completeness, milestone.int("Completeness"))
+	}
+
+	checkForLabelConsistency := func(t *testing.T, bean any) {
+		label := reflectionWrap(bean)
+		issueLabels, err := db.GetEngine(db.DefaultContext).Table("issue_label").
+			Where(builder.Eq{"label_id": label.int("ID")}).
+			Query()
+		require.NoError(t, err)
+
+		assert.Len(t, issueLabels, label.int("NumIssues"), "Unexpected number of issue for label id: %d", label.int("ID"))
+
+		issueIDs := make([]int, len(issueLabels))
+		for i, issueLabel := range issueLabels {
+			issueIDs[i], _ = strconv.Atoi(string(issueLabel["issue_id"]))
+		}
+
+		expected := int64(0)
+		if len(issueIDs) > 0 {
+			expected = GetCountByCond(t, "issue", builder.In("id", issueIDs).And(builder.Eq{"is_closed": true}))
+		}
+		assert.EqualValues(t, expected, label.int("NumClosedIssues"), "Unexpected number of closed issues for label id: %d", label.int("ID"))
+	}
+
+	checkForTeamConsistency := func(t *testing.T, bean any) {
+		team := reflectionWrap(bean)
+		AssertCountByCond(t, "team_user", builder.Eq{"team_id": team.int("ID")}, team.int("NumMembers"))
+		AssertCountByCond(t, "team_repo", builder.Eq{"team_id": team.int("ID")}, team.int("NumRepos"))
+	}
+
+	checkForActionConsistency := func(t *testing.T, bean any) {
+		action := reflectionWrap(bean)
+		if action.int("RepoID") != 1700 { // dangling intentional
+			repoRow := AssertExistsAndLoadMap(t, "repository", builder.Eq{"id": action.int("RepoID")})
+			assert.Equal(t, parseBool(repoRow["is_private"]), action.bool("IsPrivate"), "Unexpected is_private field for action id: %d", action.int("ID"))
+		}
+	}
+
+	consistencyCheckMap["user"] = checkForUserConsistency
+	consistencyCheckMap["repository"] = checkForRepoConsistency
+	consistencyCheckMap["issue"] = checkForIssueConsistency
+	consistencyCheckMap["pull_request"] = checkForPullRequestConsistency
+	consistencyCheckMap["milestone"] = checkForMilestoneConsistency
+	consistencyCheckMap["label"] = checkForLabelConsistency
+	consistencyCheckMap["team"] = checkForTeamConsistency
+	consistencyCheckMap["action"] = checkForActionConsistency
+}
diff --git a/models/unittest/fixtures.go b/models/unittest/fixtures.go
new file mode 100644
index 0000000..63b26a0
--- /dev/null
+++ b/models/unittest/fixtures.go
@@ -0,0 +1,144 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+//nolint:forbidigo
+package unittest
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/auth/password/hash"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/go-testfixtures/testfixtures/v3"
+	"xorm.io/xorm"
+	"xorm.io/xorm/schemas"
+)
+
+var fixturesLoader *testfixtures.Loader
+
+// GetXORMEngine gets the XORM engine
+func GetXORMEngine(engine ...*xorm.Engine) (x *xorm.Engine) {
+	if len(engine) == 1 {
+		return engine[0]
+	}
+	return db.DefaultContext.(*db.Context).Engine().(*xorm.Engine)
+}
+
+func OverrideFixtures(opts FixturesOptions, engine ...*xorm.Engine) func() {
+	old := fixturesLoader
+	if err := InitFixtures(opts, engine...); err != nil {
+		panic(err)
+	}
+	return func() {
+		fixturesLoader = old
+	}
+}
+
+// InitFixtures initialize test fixtures for a test database
+func InitFixtures(opts FixturesOptions, engine ...*xorm.Engine) (err error) {
+	e := GetXORMEngine(engine...)
+	var fixtureOptionFiles func(*testfixtures.Loader) error
+	if opts.Dir != "" {
+		fixtureOptionFiles = testfixtures.Directory(opts.Dir)
+	} else {
+		fixtureOptionFiles = testfixtures.Files(opts.Files...)
+	}
+	var fixtureOptionDirs []func(*testfixtures.Loader) error
+	if opts.Dirs != nil {
+		for _, dir := range opts.Dirs {
+			fixtureOptionDirs = append(fixtureOptionDirs, testfixtures.Directory(filepath.Join(opts.Base, dir)))
+		}
+	}
+	dialect := "unknown"
+	switch e.Dialect().URI().DBType {
+	case schemas.POSTGRES:
+		dialect = "postgres"
+	case schemas.MYSQL:
+		dialect = "mysql"
+	case schemas.SQLITE:
+		dialect = "sqlite3"
+	default:
+		fmt.Println("Unsupported RDBMS for integration tests")
+		os.Exit(1)
+	}
+	loaderOptions := []func(loader *testfixtures.Loader) error{
+		testfixtures.Database(e.DB().DB),
+		testfixtures.Dialect(dialect),
+		testfixtures.DangerousSkipTestDatabaseCheck(),
+		fixtureOptionFiles,
+	}
+	loaderOptions = append(loaderOptions, fixtureOptionDirs...)
+
+	if e.Dialect().URI().DBType == schemas.POSTGRES {
+		loaderOptions = append(loaderOptions, testfixtures.SkipResetSequences())
+	}
+
+	fixturesLoader, err = testfixtures.New(loaderOptions...)
+	if err != nil {
+		return err
+	}
+
+	// register the dummy hash algorithm function used in the test fixtures
+	_ = hash.Register("dummy", hash.NewDummyHasher)
+
+	setting.PasswordHashAlgo, _ = hash.SetDefaultPasswordHashAlgorithm("dummy")
+
+	return err
+}
+
+// LoadFixtures load fixtures for a test database
+func LoadFixtures(engine ...*xorm.Engine) error {
+	e := GetXORMEngine(engine...)
+	var err error
+	// (doubt) database transaction conflicts could occur and result in ROLLBACK? just try for a few times.
+	for i := 0; i < 5; i++ {
+		if err = fixturesLoader.Load(); err == nil {
+			break
+		}
+		time.Sleep(200 * time.Millisecond)
+	}
+	if err != nil {
+		fmt.Printf("LoadFixtures failed after retries: %v\n", err)
+	}
+	// Now if we're running postgres we need to tell it to update the sequences
+	if e.Dialect().URI().DBType == schemas.POSTGRES {
+		results, err := e.QueryString(`SELECT 'SELECT SETVAL(' ||
+		quote_literal(quote_ident(PGT.schemaname) || '.' || quote_ident(S.relname)) ||
+		', COALESCE(MAX(' ||quote_ident(C.attname)|| '), 1) ) FROM ' ||
+		quote_ident(PGT.schemaname)|| '.'||quote_ident(T.relname)|| ';'
+	 FROM pg_class AS S,
+	      pg_depend AS D,
+	      pg_class AS T,
+	      pg_attribute AS C,
+	      pg_tables AS PGT
+	 WHERE S.relkind = 'S'
+	     AND S.oid = D.objid
+	     AND D.refobjid = T.oid
+	     AND D.refobjid = C.attrelid
+	     AND D.refobjsubid = C.attnum
+	     AND T.relname = PGT.tablename
+	 ORDER BY S.relname;`)
+		if err != nil {
+			fmt.Printf("Failed to generate sequence update: %v\n", err)
+			return err
+		}
+		for _, r := range results {
+			for _, value := range r {
+				_, err = e.Exec(value)
+				if err != nil {
+					fmt.Printf("Failed to update sequence: %s Error: %v\n", value, err)
+					return err
+				}
+			}
+		}
+	}
+	_ = hash.Register("dummy", hash.NewDummyHasher)
+	setting.PasswordHashAlgo, _ = hash.SetDefaultPasswordHashAlgorithm("dummy")
+
+	return err
+}
diff --git a/models/unittest/fscopy.go b/models/unittest/fscopy.go
new file mode 100644
index 0000000..74b12d5
--- /dev/null
+++ b/models/unittest/fscopy.go
@@ -0,0 +1,102 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"errors"
+	"io"
+	"os"
+	"path"
+	"strings"
+
+	"code.gitea.io/gitea/modules/util"
+)
+
+// Copy copies file from source to target path.
+func Copy(src, dest string) error {
+	// Gather file information to set back later.
+	si, err := os.Lstat(src)
+	if err != nil {
+		return err
+	}
+
+	// Handle symbolic link.
+	if si.Mode()&os.ModeSymlink != 0 {
+		target, err := os.Readlink(src)
+		if err != nil {
+			return err
+		}
+		// NOTE: os.Chmod and os.Chtimes don't recognize symbolic link,
+		// which will lead "no such file or directory" error.
+		return os.Symlink(target, dest)
+	}
+
+	sr, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer sr.Close()
+
+	dw, err := os.Create(dest)
+	if err != nil {
+		return err
+	}
+	defer dw.Close()
+
+	if _, err = io.Copy(dw, sr); err != nil {
+		return err
+	}
+
+	// Set back file information.
+	if err = os.Chtimes(dest, si.ModTime(), si.ModTime()); err != nil {
+		return err
+	}
+	return os.Chmod(dest, si.Mode())
+}
+
+// CopyDir copy files recursively from source to target directory.
+//
+// The filter accepts a function that process the path info.
+// and should return true for need to filter.
+//
+// It returns error when error occurs in underlying functions.
+func CopyDir(srcPath, destPath string, filters ...func(filePath string) bool) error {
+	// Check if target directory exists.
+	if _, err := os.Stat(destPath); !errors.Is(err, os.ErrNotExist) {
+		return util.NewAlreadyExistErrorf("file or directory already exists: %s", destPath)
+	}
+
+	err := os.MkdirAll(destPath, os.ModePerm)
+	if err != nil {
+		return err
+	}
+
+	// Gather directory info.
+	infos, err := util.StatDir(srcPath, true)
+	if err != nil {
+		return err
+	}
+
+	var filter func(filePath string) bool
+	if len(filters) > 0 {
+		filter = filters[0]
+	}
+
+	for _, info := range infos {
+		if filter != nil && filter(info) {
+			continue
+		}
+
+		curPath := path.Join(destPath, info)
+		if strings.HasSuffix(info, "/") {
+			err = os.MkdirAll(curPath, os.ModePerm)
+		} else {
+			err = Copy(path.Join(srcPath, info), curPath)
+		}
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/models/unittest/mock_http.go b/models/unittest/mock_http.go
new file mode 100644
index 0000000..aea2489
--- /dev/null
+++ b/models/unittest/mock_http.go
@@ -0,0 +1,115 @@
+// Copyright 2017 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"slices"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/modules/log"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// Mocks HTTP responses of a third-party service (such as GitHub, GitLab…)
+// This has two modes:
+//   - live mode: the requests made to the mock HTTP server are transmitted to the live
+//     service, and responses are saved as test data files
+//   - test mode: the responses to requests to the mock HTTP server are read from the
+//     test data files
+func NewMockWebServer(t *testing.T, liveServerBaseURL, testDataDir string, liveMode bool) *httptest.Server {
+	mockServerBaseURL := ""
+	ignoredHeaders := []string{"cf-ray", "server", "date", "report-to", "nel", "x-request-id"}
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		path := NormalizedFullPath(r.URL)
+		log.Info("Mock HTTP Server: got request for path %s", r.URL.Path)
+		// TODO check request method (support POST?)
+		fixturePath := fmt.Sprintf("%s/%s_%s", testDataDir, r.Method, url.PathEscape(path))
+		if liveMode {
+			liveURL := fmt.Sprintf("%s%s", liveServerBaseURL, path)
+
+			request, err := http.NewRequest(r.Method, liveURL, nil)
+			require.NoError(t, err, "constructing an HTTP request to %s failed", liveURL)
+			for headerName, headerValues := range r.Header {
+				// do not pass on the encoding: let the Transport of the HTTP client handle that for us
+				if strings.ToLower(headerName) != "accept-encoding" {
+					for _, headerValue := range headerValues {
+						request.Header.Add(headerName, headerValue)
+					}
+				}
+			}
+
+			response, err := http.DefaultClient.Do(request)
+			require.NoError(t, err, "HTTP request to %s failed: %s", liveURL)
+			assert.Less(t, response.StatusCode, 400, "unexpected status code for %s", liveURL)
+
+			fixture, err := os.Create(fixturePath)
+			require.NoError(t, err, "failed to open the fixture file %s for writing", fixturePath)
+			defer fixture.Close()
+			fixtureWriter := bufio.NewWriter(fixture)
+
+			for headerName, headerValues := range response.Header {
+				for _, headerValue := range headerValues {
+					if !slices.Contains(ignoredHeaders, strings.ToLower(headerName)) {
+						_, err := fixtureWriter.WriteString(fmt.Sprintf("%s: %s\n", headerName, headerValue))
+						require.NoError(t, err, "writing the header of the HTTP response to the fixture file failed")
+					}
+				}
+			}
+			_, err = fixtureWriter.WriteString("\n")
+			require.NoError(t, err, "writing the header of the HTTP response to the fixture file failed")
+			fixtureWriter.Flush()
+
+			log.Info("Mock HTTP Server: writing response to %s", fixturePath)
+			_, err = io.Copy(fixture, response.Body)
+			require.NoError(t, err, "writing the body of the HTTP response to %s failed", liveURL)
+
+			err = fixture.Sync()
+			require.NoError(t, err, "writing the body of the HTTP response to the fixture file failed")
+		}
+
+		fixture, err := os.ReadFile(fixturePath)
+		require.NoError(t, err, "missing mock HTTP response: "+fixturePath)
+
+		w.WriteHeader(http.StatusOK)
+
+		// replace any mention of the live HTTP service by the mocked host
+		stringFixture := strings.ReplaceAll(string(fixture), liveServerBaseURL, mockServerBaseURL)
+		// parse back the fixture file into a series of HTTP headers followed by response body
+		lines := strings.Split(stringFixture, "\n")
+		for idx, line := range lines {
+			colonIndex := strings.Index(line, ": ")
+			if colonIndex != -1 {
+				w.Header().Set(line[0:colonIndex], line[colonIndex+2:])
+			} else {
+				// we reached the end of the headers (empty line), so what follows is the body
+				responseBody := strings.Join(lines[idx+1:], "\n")
+				_, err := w.Write([]byte(responseBody))
+				require.NoError(t, err, "writing the body of the HTTP response failed")
+				break
+			}
+		}
+	}))
+	mockServerBaseURL = server.URL
+	return server
+}
+
+func NormalizedFullPath(url *url.URL) string {
+	// TODO normalize path (remove trailing slash?)
+	// TODO normalize RawQuery (order query parameters?)
+	if len(url.Query()) == 0 {
+		return url.EscapedPath()
+	}
+	return fmt.Sprintf("%s?%s", url.EscapedPath(), url.RawQuery)
+}
diff --git a/models/unittest/reflection.go b/models/unittest/reflection.go
new file mode 100644
index 0000000..141fc66
--- /dev/null
+++ b/models/unittest/reflection.go
@@ -0,0 +1,40 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"log"
+	"reflect"
+)
+
+func fieldByName(v reflect.Value, field string) reflect.Value {
+	if v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+	f := v.FieldByName(field)
+	if !f.IsValid() {
+		log.Panicf("can not read %s for %v", field, v)
+	}
+	return f
+}
+
+type reflectionValue struct {
+	v reflect.Value
+}
+
+func reflectionWrap(v any) *reflectionValue {
+	return &reflectionValue{v: reflect.ValueOf(v)}
+}
+
+func (rv *reflectionValue) int(field string) int {
+	return int(fieldByName(rv.v, field).Int())
+}
+
+func (rv *reflectionValue) str(field string) string {
+	return fieldByName(rv.v, field).String()
+}
+
+func (rv *reflectionValue) bool(field string) bool {
+	return fieldByName(rv.v, field).Bool()
+}
diff --git a/models/unittest/testdb.go b/models/unittest/testdb.go
new file mode 100644
index 0000000..94a3253
--- /dev/null
+++ b/models/unittest/testdb.go
@@ -0,0 +1,267 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/modules/auth/password/hash"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/setting/config"
+	"code.gitea.io/gitea/modules/storage"
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/stretchr/testify/require"
+	"xorm.io/xorm"
+	"xorm.io/xorm/names"
+)
+
+// giteaRoot a path to the gitea root
+var (
+	giteaRoot   string
+	fixturesDir string
+)
+
+// FixturesDir returns the fixture directory
+func FixturesDir() string {
+	return fixturesDir
+}
+
+func fatalTestError(fmtStr string, args ...any) {
+	_, _ = fmt.Fprintf(os.Stderr, fmtStr, args...)
+	os.Exit(1)
+}
+
+// InitSettings initializes config provider and load common settings for tests
+func InitSettings() {
+	if setting.CustomConf == "" {
+		setting.CustomConf = filepath.Join(setting.CustomPath, "conf/app-unittest-tmp.ini")
+		_ = os.Remove(setting.CustomConf)
+	}
+	setting.InitCfgProvider(setting.CustomConf)
+	setting.LoadCommonSettings()
+
+	if err := setting.PrepareAppDataPath(); err != nil {
+		log.Fatalf("Can not prepare APP_DATA_PATH: %v", err)
+	}
+	// register the dummy hash algorithm function used in the test fixtures
+	_ = hash.Register("dummy", hash.NewDummyHasher)
+
+	setting.PasswordHashAlgo, _ = hash.SetDefaultPasswordHashAlgorithm("dummy")
+}
+
+// TestOptions represents test options
+type TestOptions struct {
+	FixtureFiles []string
+	SetUp        func() error // SetUp will be executed before all tests in this package
+	TearDown     func() error // TearDown will be executed after all tests in this package
+}
+
+// MainTest a reusable TestMain(..) function for unit tests that need to use a
+// test database. Creates the test database, and sets necessary settings.
+func MainTest(m *testing.M, testOpts ...*TestOptions) {
+	searchDir, _ := os.Getwd()
+	for searchDir != "" {
+		if _, err := os.Stat(filepath.Join(searchDir, "go.mod")); err == nil {
+			break // The "go.mod" should be the one for Gitea repository
+		}
+		if dir := filepath.Dir(searchDir); dir == searchDir {
+			searchDir = "" // reaches the root of filesystem
+		} else {
+			searchDir = dir
+		}
+	}
+	if searchDir == "" {
+		panic("The tests should run in a Gitea repository, there should be a 'go.mod' in the root")
+	}
+
+	giteaRoot = searchDir
+	setting.CustomPath = filepath.Join(giteaRoot, "custom")
+	InitSettings()
+
+	fixturesDir = filepath.Join(giteaRoot, "models", "fixtures")
+	var opts FixturesOptions
+	if len(testOpts) == 0 || len(testOpts[0].FixtureFiles) == 0 {
+		opts.Dir = fixturesDir
+	} else {
+		for _, f := range testOpts[0].FixtureFiles {
+			if len(f) != 0 {
+				opts.Files = append(opts.Files, filepath.Join(fixturesDir, f))
+			}
+		}
+	}
+
+	if err := CreateTestEngine(opts); err != nil {
+		fatalTestError("Error creating test engine: %v\n", err)
+	}
+
+	setting.AppURL = "https://try.gitea.io/"
+	setting.RunUser = "runuser"
+	setting.SSH.User = "sshuser"
+	setting.SSH.BuiltinServerUser = "builtinuser"
+	setting.SSH.Port = 3000
+	setting.SSH.Domain = "try.gitea.io"
+	setting.Database.Type = "sqlite3"
+	setting.Repository.DefaultBranch = "master" // many test code still assume that default branch is called "master"
+	repoRootPath, err := os.MkdirTemp(os.TempDir(), "repos")
+	if err != nil {
+		fatalTestError("TempDir: %v\n", err)
+	}
+	setting.RepoRootPath = repoRootPath
+	appDataPath, err := os.MkdirTemp(os.TempDir(), "appdata")
+	if err != nil {
+		fatalTestError("TempDir: %v\n", err)
+	}
+	setting.AppDataPath = appDataPath
+	setting.AppWorkPath = giteaRoot
+	setting.StaticRootPath = giteaRoot
+	setting.GravatarSource = "https://secure.gravatar.com/avatar/"
+
+	setting.Attachment.Storage.Path = filepath.Join(setting.AppDataPath, "attachments")
+
+	setting.LFS.Storage.Path = filepath.Join(setting.AppDataPath, "lfs")
+
+	setting.Avatar.Storage.Path = filepath.Join(setting.AppDataPath, "avatars")
+
+	setting.RepoAvatar.Storage.Path = filepath.Join(setting.AppDataPath, "repo-avatars")
+
+	setting.RepoArchive.Storage.Path = filepath.Join(setting.AppDataPath, "repo-archive")
+
+	setting.Packages.Storage.Path = filepath.Join(setting.AppDataPath, "packages")
+
+	setting.Actions.LogStorage.Path = filepath.Join(setting.AppDataPath, "actions_log")
+
+	setting.Git.HomePath = filepath.Join(setting.AppDataPath, "home")
+
+	setting.IncomingEmail.ReplyToAddress = "incoming+%{token}@localhost"
+
+	config.SetDynGetter(system.NewDatabaseDynKeyGetter())
+
+	if err = storage.Init(); err != nil {
+		fatalTestError("storage.Init: %v\n", err)
+	}
+	if err = util.RemoveAll(repoRootPath); err != nil {
+		fatalTestError("util.RemoveAll: %v\n", err)
+	}
+	if err = CopyDir(filepath.Join(giteaRoot, "tests", "gitea-repositories-meta"), setting.RepoRootPath); err != nil {
+		fatalTestError("util.CopyDir: %v\n", err)
+	}
+
+	if err = git.InitFull(context.Background()); err != nil {
+		fatalTestError("git.Init: %v\n", err)
+	}
+	ownerDirs, err := os.ReadDir(setting.RepoRootPath)
+	if err != nil {
+		fatalTestError("unable to read the new repo root: %v\n", err)
+	}
+	for _, ownerDir := range ownerDirs {
+		if !ownerDir.Type().IsDir() {
+			continue
+		}
+		repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
+		if err != nil {
+			fatalTestError("unable to read the new repo root: %v\n", err)
+		}
+		for _, repoDir := range repoDirs {
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "pack"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "info"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "heads"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "tag"), 0o755)
+		}
+	}
+
+	if len(testOpts) > 0 && testOpts[0].SetUp != nil {
+		if err := testOpts[0].SetUp(); err != nil {
+			fatalTestError("set up failed: %v\n", err)
+		}
+	}
+
+	exitStatus := m.Run()
+
+	if len(testOpts) > 0 && testOpts[0].TearDown != nil {
+		if err := testOpts[0].TearDown(); err != nil {
+			fatalTestError("tear down failed: %v\n", err)
+		}
+	}
+
+	if err = util.RemoveAll(repoRootPath); err != nil {
+		fatalTestError("util.RemoveAll: %v\n", err)
+	}
+	if err = util.RemoveAll(appDataPath); err != nil {
+		fatalTestError("util.RemoveAll: %v\n", err)
+	}
+	os.Exit(exitStatus)
+}
+
+// FixturesOptions fixtures needs to be loaded options
+type FixturesOptions struct {
+	Dir   string
+	Files []string
+	Dirs  []string
+	Base  string
+}
+
+// CreateTestEngine creates a memory database and loads the fixture data from fixturesDir
+func CreateTestEngine(opts FixturesOptions) error {
+	x, err := xorm.NewEngine("sqlite3", "file::memory:?cache=shared&_txlock=immediate")
+	if err != nil {
+		if strings.Contains(err.Error(), "unknown driver") {
+			return fmt.Errorf(`sqlite3 requires: import _ "github.com/mattn/go-sqlite3" or -tags sqlite,sqlite_unlock_notify%s%w`, "\n", err)
+		}
+		return err
+	}
+	x.SetMapper(names.GonicMapper{})
+	db.SetDefaultEngine(context.Background(), x)
+
+	if err = db.SyncAllTables(); err != nil {
+		return err
+	}
+	switch os.Getenv("GITEA_UNIT_TESTS_LOG_SQL") {
+	case "true", "1":
+		x.ShowSQL(true)
+	}
+
+	return InitFixtures(opts)
+}
+
+// PrepareTestDatabase load test fixtures into test database
+func PrepareTestDatabase() error {
+	return LoadFixtures()
+}
+
+// PrepareTestEnv prepares the environment for unit tests. Can only be called
+// by tests that use the above MainTest(..) function.
+func PrepareTestEnv(t testing.TB) {
+	require.NoError(t, PrepareTestDatabase())
+	require.NoError(t, util.RemoveAll(setting.RepoRootPath))
+	metaPath := filepath.Join(giteaRoot, "tests", "gitea-repositories-meta")
+	require.NoError(t, CopyDir(metaPath, setting.RepoRootPath))
+	ownerDirs, err := os.ReadDir(setting.RepoRootPath)
+	require.NoError(t, err)
+	for _, ownerDir := range ownerDirs {
+		if !ownerDir.Type().IsDir() {
+			continue
+		}
+		repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
+		require.NoError(t, err)
+		for _, repoDir := range repoDirs {
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "pack"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "info"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "heads"), 0o755)
+			_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "tag"), 0o755)
+		}
+	}
+
+	base.SetupGiteaRoot() // Makes sure GITEA_ROOT is set
+}
diff --git a/models/unittest/unit_tests.go b/models/unittest/unit_tests.go
new file mode 100644
index 0000000..157c676
--- /dev/null
+++ b/models/unittest/unit_tests.go
@@ -0,0 +1,164 @@
+// Copyright 2016 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package unittest
+
+import (
+	"math"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"xorm.io/builder"
+)
+
+// Code in this file is mainly used by unittest.CheckConsistencyFor, which is not in the unit test for various reasons.
+// In the future if we can decouple CheckConsistencyFor into separate unit test code, then this file can be moved into unittest package too.
+
+// NonexistentID an ID that will never exist
+const NonexistentID = int64(math.MaxInt64)
+
+type testCond struct {
+	query any
+	args  []any
+}
+
+type testOrderBy string
+
+// Cond create a condition with arguments for a test
+func Cond(query any, args ...any) any {
+	return &testCond{query: query, args: args}
+}
+
+// OrderBy creates "ORDER BY" a test query
+func OrderBy(orderBy string) any {
+	return testOrderBy(orderBy)
+}
+
+func whereOrderConditions(e db.Engine, conditions []any) db.Engine {
+	orderBy := "id" // query must have the "ORDER BY", otherwise the result is not deterministic
+	for _, condition := range conditions {
+		switch cond := condition.(type) {
+		case *testCond:
+			e = e.Where(cond.query, cond.args...)
+		case testOrderBy:
+			orderBy = string(cond)
+		default:
+			e = e.Where(cond)
+		}
+	}
+	return e.OrderBy(orderBy)
+}
+
+// LoadBeanIfExists loads beans from fixture database if exist
+func LoadBeanIfExists(bean any, conditions ...any) (bool, error) {
+	e := db.GetEngine(db.DefaultContext)
+	return whereOrderConditions(e, conditions).Get(bean)
+}
+
+// BeanExists for testing, check if a bean exists
+func BeanExists(t testing.TB, bean any, conditions ...any) bool {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	require.NoError(t, err)
+	return exists
+}
+
+// AssertExistsAndLoadBean assert that a bean exists and load it from the test database
+func AssertExistsAndLoadBean[T any](t testing.TB, bean T, conditions ...any) T {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	require.NoError(t, err)
+	assert.True(t, exists,
+		"Expected to find %+v (of type %T, with conditions %+v), but did not",
+		bean, bean, conditions)
+	return bean
+}
+
+// AssertExistsAndLoadMap assert that a row exists and load it from the test database
+func AssertExistsAndLoadMap(t testing.TB, table string, conditions ...any) map[string]string {
+	e := db.GetEngine(db.DefaultContext).Table(table)
+	res, err := whereOrderConditions(e, conditions).Query()
+	require.NoError(t, err)
+	assert.Len(t, res, 1,
+		"Expected to find one row in %s (with conditions %+v), but found %d",
+		table, conditions, len(res),
+	)
+
+	if len(res) == 1 {
+		rec := map[string]string{}
+		for k, v := range res[0] {
+			rec[k] = string(v)
+		}
+		return rec
+	}
+	return nil
+}
+
+// GetCount get the count of a bean
+func GetCount(t testing.TB, bean any, conditions ...any) int {
+	e := db.GetEngine(db.DefaultContext)
+	for _, condition := range conditions {
+		switch cond := condition.(type) {
+		case *testCond:
+			e = e.Where(cond.query, cond.args...)
+		default:
+			e = e.Where(cond)
+		}
+	}
+	count, err := e.Count(bean)
+	require.NoError(t, err)
+	return int(count)
+}
+
+// AssertNotExistsBean assert that a bean does not exist in the test database
+func AssertNotExistsBean(t testing.TB, bean any, conditions ...any) {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	require.NoError(t, err)
+	assert.False(t, exists)
+}
+
+// AssertExistsIf asserts that a bean exists or does not exist, depending on
+// what is expected.
+func AssertExistsIf(t testing.TB, expected bool, bean any, conditions ...any) {
+	exists, err := LoadBeanIfExists(bean, conditions...)
+	require.NoError(t, err)
+	assert.Equal(t, expected, exists)
+}
+
+// AssertSuccessfulInsert assert that beans is successfully inserted
+func AssertSuccessfulInsert(t testing.TB, beans ...any) {
+	err := db.Insert(db.DefaultContext, beans...)
+	require.NoError(t, err)
+}
+
+// AssertSuccessfulDelete assert that beans is successfully deleted
+func AssertSuccessfulDelete(t require.TestingT, beans ...any) {
+	err := db.DeleteBeans(db.DefaultContext, beans...)
+	require.NoError(t, err)
+}
+
+// AssertCount assert the count of a bean
+func AssertCount(t testing.TB, bean, expected any) bool {
+	return assert.EqualValues(t, expected, GetCount(t, bean))
+}
+
+// AssertInt64InRange assert value is in range [low, high]
+func AssertInt64InRange(t testing.TB, low, high, value int64) {
+	assert.True(t, value >= low && value <= high,
+		"Expected value in range [%d, %d], found %d", low, high, value)
+}
+
+// GetCountByCond get the count of database entries matching bean
+func GetCountByCond(t testing.TB, tableName string, cond builder.Cond) int64 {
+	e := db.GetEngine(db.DefaultContext)
+	count, err := e.Table(tableName).Where(cond).Count()
+	require.NoError(t, err)
+	return count
+}
+
+// AssertCountByCond test the count of database entries matching bean
+func AssertCountByCond(t testing.TB, tableName string, cond builder.Cond, expected int) bool {
+	return assert.EqualValues(t, expected, GetCountByCond(t, tableName, cond),
+		"Failed consistency test, the counted bean (of table %s) was %+v", tableName, cond)
+}
diff --git a/models/user/avatar.go b/models/user/avatar.go
new file mode 100644
index 0000000..c6937d7
--- /dev/null
+++ b/models/user/avatar.go
@@ -0,0 +1,115 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"crypto/md5"
+	"fmt"
+	"image/png"
+	"io"
+	"strings"
+
+	"code.gitea.io/gitea/models/avatars"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/avatar"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/storage"
+)
+
+// CustomAvatarRelativePath returns user custom avatar relative path.
+func (u *User) CustomAvatarRelativePath() string {
+	return u.Avatar
+}
+
+// GenerateRandomAvatar generates a random avatar for user.
+func GenerateRandomAvatar(ctx context.Context, u *User) error {
+	seed := u.Email
+	if len(seed) == 0 {
+		seed = u.Name
+	}
+
+	img, err := avatar.RandomImage([]byte(seed))
+	if err != nil {
+		return fmt.Errorf("RandomImage: %w", err)
+	}
+
+	u.Avatar = avatars.HashEmail(seed)
+
+	// Don't share the images so that we can delete them easily
+	if err := storage.SaveFrom(storage.Avatars, u.CustomAvatarRelativePath(), func(w io.Writer) error {
+		if err := png.Encode(w, img); err != nil {
+			log.Error("Encode: %v", err)
+		}
+		return err
+	}); err != nil {
+		return fmt.Errorf("Failed to create dir %s: %w", u.CustomAvatarRelativePath(), err)
+	}
+
+	if _, err := db.GetEngine(ctx).ID(u.ID).Cols("avatar").Update(u); err != nil {
+		return err
+	}
+
+	log.Info("New random avatar created: %d", u.ID)
+	return nil
+}
+
+// AvatarLinkWithSize returns a link to the user's avatar with size. size <= 0 means default size
+func (u *User) AvatarLinkWithSize(ctx context.Context, size int) string {
+	if u.IsGhost() {
+		return avatars.DefaultAvatarLink()
+	}
+
+	useLocalAvatar := false
+	autoGenerateAvatar := false
+
+	disableGravatar := setting.Config().Picture.DisableGravatar.Value(ctx)
+
+	switch {
+	case u.UseCustomAvatar:
+		useLocalAvatar = true
+	case disableGravatar, setting.OfflineMode:
+		useLocalAvatar = true
+		autoGenerateAvatar = true
+	}
+
+	if useLocalAvatar {
+		if u.Avatar == "" && autoGenerateAvatar {
+			if err := GenerateRandomAvatar(ctx, u); err != nil {
+				log.Error("GenerateRandomAvatar: %v", err)
+			}
+		}
+		if u.Avatar == "" {
+			return avatars.DefaultAvatarLink()
+		}
+		return avatars.GenerateUserAvatarImageLink(u.Avatar, size)
+	}
+	return avatars.GenerateEmailAvatarFastLink(ctx, u.AvatarEmail, size)
+}
+
+// AvatarLink returns the full avatar link with http host
+func (u *User) AvatarLink(ctx context.Context) string {
+	link := u.AvatarLinkWithSize(ctx, 0)
+	if !strings.HasPrefix(link, "//") && !strings.Contains(link, "://") {
+		return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL+"/")
+	}
+	return link
+}
+
+// IsUploadAvatarChanged returns true if the current user's avatar would be changed with the provided data
+func (u *User) IsUploadAvatarChanged(data []byte) bool {
+	if !u.UseCustomAvatar || len(u.Avatar) == 0 {
+		return true
+	}
+	avatarID := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("%d-%x", u.ID, md5.Sum(data)))))
+	return u.Avatar != avatarID
+}
+
+// ExistsWithAvatarAtStoragePath returns true if there is a user with this Avatar
+func ExistsWithAvatarAtStoragePath(ctx context.Context, storagePath string) (bool, error) {
+	// See func (u *User) CustomAvatarRelativePath()
+	// u.Avatar is used directly as the storage path - therefore we can check for existence directly using the path
+	return db.GetEngine(ctx).Where("`avatar`=?", storagePath).Exist(new(User))
+}
diff --git a/models/user/badge.go b/models/user/badge.go
new file mode 100644
index 0000000..ee52b44
--- /dev/null
+++ b/models/user/badge.go
@@ -0,0 +1,41 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+// Badge represents a user badge
+type Badge struct {
+	ID          int64 `xorm:"pk autoincr"`
+	Description string
+	ImageURL    string
+}
+
+// UserBadge represents a user badge
+type UserBadge struct { //nolint:revive
+	ID      int64 `xorm:"pk autoincr"`
+	BadgeID int64
+	UserID  int64 `xorm:"INDEX"`
+}
+
+func init() {
+	db.RegisterModel(new(Badge))
+	db.RegisterModel(new(UserBadge))
+}
+
+// GetUserBadges returns the user's badges.
+func GetUserBadges(ctx context.Context, u *User) ([]*Badge, int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("`badge`.*").
+		Join("INNER", "user_badge", "`user_badge`.badge_id=badge.id").
+		Where("user_badge.user_id=?", u.ID)
+
+	badges := make([]*Badge, 0, 8)
+	count, err := sess.FindAndCount(&badges)
+	return badges, count, err
+}
diff --git a/models/user/block.go b/models/user/block.go
new file mode 100644
index 0000000..189cacc
--- /dev/null
+++ b/models/user/block.go
@@ -0,0 +1,91 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"errors"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// ErrBlockedByUser defines an error stating that the user is not allowed to perform the action because they are blocked.
+var ErrBlockedByUser = errors.New("user is blocked by the poster or repository owner")
+
+// BlockedUser represents a blocked user entry.
+type BlockedUser struct {
+	ID int64 `xorm:"pk autoincr"`
+	// UID of the one who got blocked.
+	BlockID int64 `xorm:"index"`
+	// UID of the one who did the block action.
+	UserID int64 `xorm:"index"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"created"`
+}
+
+// TableName provides the real table name
+func (*BlockedUser) TableName() string {
+	return "forgejo_blocked_user"
+}
+
+func init() {
+	db.RegisterModel(new(BlockedUser))
+}
+
+// IsBlocked returns if userID has blocked blockID.
+func IsBlocked(ctx context.Context, userID, blockID int64) bool {
+	has, _ := db.GetEngine(ctx).Exist(&BlockedUser{UserID: userID, BlockID: blockID})
+	return has
+}
+
+// IsBlockedMultiple returns if one of the userIDs has blocked blockID.
+func IsBlockedMultiple(ctx context.Context, userIDs []int64, blockID int64) bool {
+	has, _ := db.GetEngine(ctx).In("user_id", userIDs).Exist(&BlockedUser{BlockID: blockID})
+	return has
+}
+
+// UnblockUser removes the blocked user entry.
+func UnblockUser(ctx context.Context, userID, blockID int64) error {
+	_, err := db.GetEngine(ctx).Delete(&BlockedUser{UserID: userID, BlockID: blockID})
+	return err
+}
+
+// CountBlockedUsers returns the number of users the user has blocked.
+func CountBlockedUsers(ctx context.Context, userID int64) (int64, error) {
+	return db.GetEngine(ctx).Where("user_id=?", userID).Count(&BlockedUser{})
+}
+
+// ListBlockedUsers returns the users that the user has blocked.
+// The created_unix field of the user struct is overridden by the creation_unix
+// field of blockeduser.
+func ListBlockedUsers(ctx context.Context, userID int64, opts db.ListOptions) ([]*User, error) {
+	sess := db.GetEngine(ctx).
+		Select("`forgejo_blocked_user`.created_unix, `user`.*").
+		Join("INNER", "forgejo_blocked_user", "`user`.id=`forgejo_blocked_user`.block_id").
+		Where("`forgejo_blocked_user`.user_id=?", userID)
+
+	if opts.Page > 0 {
+		sess = db.SetSessionPagination(sess, &opts)
+		users := make([]*User, 0, opts.PageSize)
+
+		return users, sess.Find(&users)
+	}
+
+	users := make([]*User, 0, 8)
+	return users, sess.Find(&users)
+}
+
+// ListBlockedByUsersID returns the ids of the users that blocked the user.
+func ListBlockedByUsersID(ctx context.Context, userID int64) ([]int64, error) {
+	users := make([]int64, 0, 8)
+	err := db.GetEngine(ctx).
+		Table("user").
+		Select("`user`.id").
+		Join("INNER", "forgejo_blocked_user", "`user`.id=`forgejo_blocked_user`.user_id").
+		Where("`forgejo_blocked_user`.block_id=?", userID).
+		Find(&users)
+
+	return users, err
+}
diff --git a/models/user/block_test.go b/models/user/block_test.go
new file mode 100644
index 0000000..a795ef3
--- /dev/null
+++ b/models/user/block_test.go
@@ -0,0 +1,78 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsBlocked(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, user_model.IsBlocked(db.DefaultContext, 4, 1))
+
+	// Simple test cases to ensure the function can also respond with false.
+	assert.False(t, user_model.IsBlocked(db.DefaultContext, 1, 1))
+	assert.False(t, user_model.IsBlocked(db.DefaultContext, 3, 2))
+}
+
+func TestIsBlockedMultiple(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, user_model.IsBlockedMultiple(db.DefaultContext, []int64{4}, 1))
+	assert.True(t, user_model.IsBlockedMultiple(db.DefaultContext, []int64{4, 3, 4, 5}, 1))
+
+	// Simple test cases to ensure the function can also respond with false.
+	assert.False(t, user_model.IsBlockedMultiple(db.DefaultContext, []int64{1}, 1))
+	assert.False(t, user_model.IsBlockedMultiple(db.DefaultContext, []int64{3, 4, 1}, 2))
+}
+
+func TestUnblockUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, user_model.IsBlocked(db.DefaultContext, 4, 1))
+
+	require.NoError(t, user_model.UnblockUser(db.DefaultContext, 4, 1))
+
+	// Simple test cases to ensure the function can also respond with false.
+	assert.False(t, user_model.IsBlocked(db.DefaultContext, 4, 1))
+}
+
+func TestListBlockedUsers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	blockedUsers, err := user_model.ListBlockedUsers(db.DefaultContext, 4, db.ListOptions{})
+	require.NoError(t, err)
+	if assert.Len(t, blockedUsers, 1) {
+		assert.EqualValues(t, 1, blockedUsers[0].ID)
+		// The function returns the created Unix of the block, not that of the user.
+		assert.EqualValues(t, 1671607299, blockedUsers[0].CreatedUnix)
+	}
+}
+
+func TestListBlockedByUsersID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	blockedByUserIDs, err := user_model.ListBlockedByUsersID(db.DefaultContext, 1)
+	require.NoError(t, err)
+	if assert.Len(t, blockedByUserIDs, 1) {
+		assert.EqualValues(t, 4, blockedByUserIDs[0])
+	}
+}
+
+func TestCountBlockedUsers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := user_model.CountBlockedUsers(db.DefaultContext, 4)
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, count)
+
+	count, err = user_model.CountBlockedUsers(db.DefaultContext, 1)
+	require.NoError(t, err)
+	assert.EqualValues(t, 0, count)
+}
diff --git a/models/user/email_address.go b/models/user/email_address.go
new file mode 100644
index 0000000..011c3ed
--- /dev/null
+++ b/models/user/email_address.go
@@ -0,0 +1,483 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+	"net/mail"
+	"regexp"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/modules/validation"
+
+	"xorm.io/builder"
+)
+
+// ErrEmailNotActivated e-mail address has not been activated error
+var ErrEmailNotActivated = util.NewInvalidArgumentErrorf("e-mail address has not been activated")
+
+// ErrEmailCharIsNotSupported e-mail address contains unsupported character
+type ErrEmailCharIsNotSupported struct {
+	Email string
+}
+
+// IsErrEmailCharIsNotSupported checks if an error is an ErrEmailCharIsNotSupported
+func IsErrEmailCharIsNotSupported(err error) bool {
+	_, ok := err.(ErrEmailCharIsNotSupported)
+	return ok
+}
+
+func (err ErrEmailCharIsNotSupported) Error() string {
+	return fmt.Sprintf("e-mail address contains unsupported character [email: %s]", err.Email)
+}
+
+func (err ErrEmailCharIsNotSupported) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrEmailInvalid represents an error where the email address does not comply with RFC 5322
+// or has a leading '-' character
+type ErrEmailInvalid struct {
+	Email string
+}
+
+// IsErrEmailInvalid checks if an error is an ErrEmailInvalid
+func IsErrEmailInvalid(err error) bool {
+	_, ok := err.(ErrEmailInvalid)
+	return ok
+}
+
+func (err ErrEmailInvalid) Error() string {
+	return fmt.Sprintf("e-mail invalid [email: %s]", err.Email)
+}
+
+func (err ErrEmailInvalid) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// ErrEmailAlreadyUsed represents a "EmailAlreadyUsed" kind of error.
+type ErrEmailAlreadyUsed struct {
+	Email string
+}
+
+// IsErrEmailAlreadyUsed checks if an error is a ErrEmailAlreadyUsed.
+func IsErrEmailAlreadyUsed(err error) bool {
+	_, ok := err.(ErrEmailAlreadyUsed)
+	return ok
+}
+
+func (err ErrEmailAlreadyUsed) Error() string {
+	return fmt.Sprintf("e-mail already in use [email: %s]", err.Email)
+}
+
+func (err ErrEmailAlreadyUsed) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrEmailAddressNotExist email address not exist
+type ErrEmailAddressNotExist struct {
+	Email string
+}
+
+// IsErrEmailAddressNotExist checks if an error is an ErrEmailAddressNotExist
+func IsErrEmailAddressNotExist(err error) bool {
+	_, ok := err.(ErrEmailAddressNotExist)
+	return ok
+}
+
+func (err ErrEmailAddressNotExist) Error() string {
+	return fmt.Sprintf("Email address does not exist [email: %s]", err.Email)
+}
+
+func (err ErrEmailAddressNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrPrimaryEmailCannotDelete primary email address cannot be deleted
+type ErrPrimaryEmailCannotDelete struct {
+	Email string
+}
+
+// IsErrPrimaryEmailCannotDelete checks if an error is an ErrPrimaryEmailCannotDelete
+func IsErrPrimaryEmailCannotDelete(err error) bool {
+	_, ok := err.(ErrPrimaryEmailCannotDelete)
+	return ok
+}
+
+func (err ErrPrimaryEmailCannotDelete) Error() string {
+	return fmt.Sprintf("Primary email address cannot be deleted [email: %s]", err.Email)
+}
+
+func (err ErrPrimaryEmailCannotDelete) Unwrap() error {
+	return util.ErrInvalidArgument
+}
+
+// EmailAddress is the list of all email addresses of a user. It also contains the
+// primary email address which is saved in user table.
+type EmailAddress struct {
+	ID          int64  `xorm:"pk autoincr"`
+	UID         int64  `xorm:"INDEX NOT NULL"`
+	Email       string `xorm:"UNIQUE NOT NULL"`
+	LowerEmail  string `xorm:"UNIQUE NOT NULL"`
+	IsActivated bool
+	IsPrimary   bool `xorm:"DEFAULT(false) NOT NULL"`
+}
+
+func init() {
+	db.RegisterModel(new(EmailAddress))
+}
+
+// BeforeInsert will be invoked by XORM before inserting a record
+func (email *EmailAddress) BeforeInsert() {
+	if email.LowerEmail == "" {
+		email.LowerEmail = strings.ToLower(email.Email)
+	}
+}
+
+func InsertEmailAddress(ctx context.Context, email *EmailAddress) (*EmailAddress, error) {
+	if err := db.Insert(ctx, email); err != nil {
+		return nil, err
+	}
+	return email, nil
+}
+
+func UpdateEmailAddress(ctx context.Context, email *EmailAddress) error {
+	_, err := db.GetEngine(ctx).ID(email.ID).AllCols().Update(email)
+	return err
+}
+
+var emailRegexp = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+-/=?^_`{|}~]*@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
+
+// ValidateEmail check if email is a valid & allowed address
+func ValidateEmail(email string) error {
+	if err := validateEmailBasic(email); err != nil {
+		return err
+	}
+	return validateEmailDomain(email)
+}
+
+// ValidateEmailForAdmin check if email is a valid address when admins manually add or edit users
+func ValidateEmailForAdmin(email string) error {
+	return validateEmailBasic(email)
+	// In this case we do not need to check the email domain
+}
+
+func GetEmailAddressByEmail(ctx context.Context, email string) (*EmailAddress, error) {
+	ea := &EmailAddress{}
+	if has, err := db.GetEngine(ctx).Where("lower_email=?", strings.ToLower(email)).Get(ea); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrEmailAddressNotExist{email}
+	}
+	return ea, nil
+}
+
+func GetEmailAddressOfUser(ctx context.Context, email string, uid int64) (*EmailAddress, error) {
+	ea := &EmailAddress{}
+	if has, err := db.GetEngine(ctx).Where("lower_email=? AND uid=?", strings.ToLower(email), uid).Get(ea); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrEmailAddressNotExist{email}
+	}
+	return ea, nil
+}
+
+func GetPrimaryEmailAddressOfUser(ctx context.Context, uid int64) (*EmailAddress, error) {
+	ea := &EmailAddress{}
+	if has, err := db.GetEngine(ctx).Where("uid=? AND is_primary=?", uid, true).Get(ea); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrEmailAddressNotExist{}
+	}
+	return ea, nil
+}
+
+// GetEmailAddresses returns all email addresses belongs to given user.
+func GetEmailAddresses(ctx context.Context, uid int64) ([]*EmailAddress, error) {
+	emails := make([]*EmailAddress, 0, 5)
+	if err := db.GetEngine(ctx).
+		Where("uid=?", uid).
+		Asc("id").
+		Find(&emails); err != nil {
+		return nil, err
+	}
+	return emails, nil
+}
+
+type ActivatedEmailAddress struct {
+	ID    int64
+	Email string
+}
+
+func GetActivatedEmailAddresses(ctx context.Context, uid int64) ([]*ActivatedEmailAddress, error) {
+	emails := make([]*ActivatedEmailAddress, 0, 8)
+	if err := db.GetEngine(ctx).
+		Table("email_address").
+		Select("id, email").
+		Where("uid=?", uid).
+		And("is_activated=?", true).
+		Asc("id").
+		Find(&emails); err != nil {
+		return nil, err
+	}
+	return emails, nil
+}
+
+// GetEmailAddressByID gets a user's email address by ID
+func GetEmailAddressByID(ctx context.Context, uid, id int64) (*EmailAddress, error) {
+	// User ID is required for security reasons
+	email := &EmailAddress{UID: uid}
+	if has, err := db.GetEngine(ctx).ID(id).Get(email); err != nil {
+		return nil, err
+	} else if !has {
+		return nil, nil
+	}
+	return email, nil
+}
+
+// IsEmailActive check if email is activated with a different emailID
+func IsEmailActive(ctx context.Context, email string, excludeEmailID int64) (bool, error) {
+	if len(email) == 0 {
+		return true, nil
+	}
+
+	// Can't filter by boolean field unless it's explicit
+	cond := builder.NewCond()
+	cond = cond.And(builder.Eq{"lower_email": strings.ToLower(email)}, builder.Neq{"id": excludeEmailID})
+	if setting.Service.RegisterEmailConfirm {
+		// Inactive (unvalidated) addresses don't count as active if email validation is required
+		cond = cond.And(builder.Eq{"is_activated": true})
+	}
+
+	var em EmailAddress
+	if has, err := db.GetEngine(ctx).Where(cond).Get(&em); has || err != nil {
+		if has {
+			log.Info("isEmailActive(%q, %d) found duplicate in email ID %d", email, excludeEmailID, em.ID)
+		}
+		return has, err
+	}
+
+	return false, nil
+}
+
+// IsEmailUsed returns true if the email has been used.
+func IsEmailUsed(ctx context.Context, email string) (bool, error) {
+	if len(email) == 0 {
+		return true, nil
+	}
+
+	return db.GetEngine(ctx).Where("lower_email=?", strings.ToLower(email)).Get(&EmailAddress{})
+}
+
+// ActivateEmail activates the email address to given user.
+func ActivateEmail(ctx context.Context, email *EmailAddress) error {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	if err := updateActivation(ctx, email, true); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+func updateActivation(ctx context.Context, email *EmailAddress, activate bool) error {
+	user, err := GetUserByID(ctx, email.UID)
+	if err != nil {
+		return err
+	}
+	if user.Rands, err = GetUserSalt(); err != nil {
+		return err
+	}
+	email.IsActivated = activate
+	if _, err := db.GetEngine(ctx).ID(email.ID).Cols("is_activated").Update(email); err != nil {
+		return err
+	}
+	return UpdateUserCols(ctx, user, "rands")
+}
+
+// SearchEmailOrderBy is used to sort the results from SearchEmails()
+type SearchEmailOrderBy string
+
+func (s SearchEmailOrderBy) String() string {
+	return string(s)
+}
+
+// Strings for sorting result
+const (
+	SearchEmailOrderByEmail        SearchEmailOrderBy = "email_address.lower_email ASC, email_address.is_primary DESC, email_address.id ASC"
+	SearchEmailOrderByEmailReverse SearchEmailOrderBy = "email_address.lower_email DESC, email_address.is_primary ASC, email_address.id DESC"
+	SearchEmailOrderByName         SearchEmailOrderBy = "`user`.lower_name ASC, email_address.is_primary DESC, email_address.id ASC"
+	SearchEmailOrderByNameReverse  SearchEmailOrderBy = "`user`.lower_name DESC, email_address.is_primary ASC, email_address.id DESC"
+)
+
+// SearchEmailOptions are options to search e-mail addresses for the admin panel
+type SearchEmailOptions struct {
+	db.ListOptions
+	Keyword     string
+	SortType    SearchEmailOrderBy
+	IsPrimary   optional.Option[bool]
+	IsActivated optional.Option[bool]
+}
+
+// SearchEmailResult is an e-mail address found in the user or email_address table
+type SearchEmailResult struct {
+	ID          int64
+	UID         int64
+	Email       string
+	IsActivated bool
+	IsPrimary   bool
+	// From User
+	Name     string
+	FullName string
+}
+
+// SearchEmails takes options i.e. keyword and part of email name to search,
+// it returns results in given range and number of total results.
+func SearchEmails(ctx context.Context, opts *SearchEmailOptions) ([]*SearchEmailResult, int64, error) {
+	var cond builder.Cond = builder.Eq{"`user`.`type`": UserTypeIndividual}
+	if len(opts.Keyword) > 0 {
+		likeStr := "%" + strings.ToLower(opts.Keyword) + "%"
+		cond = cond.And(builder.Or(
+			builder.Like{"lower(`user`.full_name)", likeStr},
+			builder.Like{"`user`.lower_name", likeStr},
+			builder.Like{"email_address.lower_email", likeStr},
+		))
+	}
+
+	if opts.IsPrimary.Has() {
+		cond = cond.And(builder.Eq{"email_address.is_primary": opts.IsPrimary.Value()})
+	}
+
+	if opts.IsActivated.Has() {
+		cond = cond.And(builder.Eq{"email_address.is_activated": opts.IsActivated.Value()})
+	}
+
+	count, err := db.GetEngine(ctx).Join("INNER", "`user`", "`user`.id = email_address.uid").
+		Where(cond).Count(new(EmailAddress))
+	if err != nil {
+		return nil, 0, fmt.Errorf("Count: %w", err)
+	}
+
+	orderby := opts.SortType.String()
+	if orderby == "" {
+		orderby = SearchEmailOrderByEmail.String()
+	}
+
+	opts.SetDefaultValues()
+
+	emails := make([]*SearchEmailResult, 0, opts.PageSize)
+	err = db.GetEngine(ctx).Table("email_address").
+		Select("email_address.*, `user`.name, `user`.full_name").
+		Join("INNER", "`user`", "`user`.id = email_address.uid").
+		Where(cond).
+		OrderBy(orderby).
+		Limit(opts.PageSize, (opts.Page-1)*opts.PageSize).
+		Find(&emails)
+
+	return emails, count, err
+}
+
+// ActivateUserEmail will change the activated state of an email address,
+// either primary or secondary (all in the email_address table)
+func ActivateUserEmail(ctx context.Context, userID int64, email string, activate bool) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	// Activate/deactivate a user's secondary email address
+	// First check if there's another user active with the same address
+	addr, exist, err := db.Get[EmailAddress](ctx, builder.Eq{"uid": userID, "lower_email": strings.ToLower(email)})
+	if err != nil {
+		return err
+	} else if !exist {
+		return fmt.Errorf("no such email: %d (%s)", userID, email)
+	}
+
+	if addr.IsActivated == activate {
+		// Already in the desired state; no action
+		return nil
+	}
+	if activate {
+		if used, err := IsEmailActive(ctx, email, addr.ID); err != nil {
+			return fmt.Errorf("unable to check isEmailActive() for %s: %w", email, err)
+		} else if used {
+			return ErrEmailAlreadyUsed{Email: email}
+		}
+	}
+	if err = updateActivation(ctx, addr, activate); err != nil {
+		return fmt.Errorf("unable to updateActivation() for %d:%s: %w", addr.ID, addr.Email, err)
+	}
+
+	// Activate/deactivate a user's primary email address and account
+	if addr.IsPrimary {
+		user, exist, err := db.Get[User](ctx, builder.Eq{"id": userID, "email": email})
+		if err != nil {
+			return err
+		} else if !exist {
+			return fmt.Errorf("no user with ID: %d and Email: %s", userID, email)
+		}
+
+		// The user's activation state should be synchronized with the primary email
+		if user.IsActive != activate {
+			user.IsActive = activate
+			if user.Rands, err = GetUserSalt(); err != nil {
+				return fmt.Errorf("unable to generate salt: %w", err)
+			}
+			if err = UpdateUserCols(ctx, user, "is_active", "rands"); err != nil {
+				return fmt.Errorf("unable to updateUserCols() for user ID: %d: %w", userID, err)
+			}
+		}
+	}
+
+	return committer.Commit()
+}
+
+// validateEmailBasic checks whether the email complies with the rules
+func validateEmailBasic(email string) error {
+	if len(email) == 0 {
+		return ErrEmailInvalid{email}
+	}
+
+	if !emailRegexp.MatchString(email) {
+		return ErrEmailCharIsNotSupported{email}
+	}
+
+	if email[0] == '-' {
+		return ErrEmailInvalid{email}
+	}
+
+	if _, err := mail.ParseAddress(email); err != nil {
+		return ErrEmailInvalid{email}
+	}
+
+	return nil
+}
+
+// validateEmailDomain checks whether the email domain is allowed or blocked
+func validateEmailDomain(email string) error {
+	if !IsEmailDomainAllowed(email) {
+		return ErrEmailInvalid{email}
+	}
+
+	return nil
+}
+
+func IsEmailDomainAllowed(email string) bool {
+	if len(setting.Service.EmailDomainAllowList) == 0 {
+		return !validation.IsEmailDomainListed(setting.Service.EmailDomainBlockList, email)
+	}
+
+	return validation.IsEmailDomainListed(setting.Service.EmailDomainAllowList, email)
+}
diff --git a/models/user/email_address_test.go b/models/user/email_address_test.go
new file mode 100644
index 0000000..b918f21
--- /dev/null
+++ b/models/user/email_address_test.go
@@ -0,0 +1,222 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"fmt"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetEmailAddresses(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	emails, _ := user_model.GetEmailAddresses(db.DefaultContext, int64(1))
+	if assert.Len(t, emails, 3) {
+		assert.True(t, emails[0].IsPrimary)
+		assert.True(t, emails[2].IsActivated)
+		assert.False(t, emails[2].IsPrimary)
+	}
+
+	emails, _ = user_model.GetEmailAddresses(db.DefaultContext, int64(2))
+	if assert.Len(t, emails, 2) {
+		assert.True(t, emails[0].IsPrimary)
+		assert.True(t, emails[0].IsActivated)
+	}
+}
+
+func TestIsEmailUsed(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	isExist, _ := user_model.IsEmailUsed(db.DefaultContext, "")
+	assert.True(t, isExist)
+	isExist, _ = user_model.IsEmailUsed(db.DefaultContext, "user11@example.com")
+	assert.True(t, isExist)
+	isExist, _ = user_model.IsEmailUsed(db.DefaultContext, "user1234567890@example.com")
+	assert.False(t, isExist)
+}
+
+func TestActivate(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	email := &user_model.EmailAddress{
+		ID:    int64(1),
+		UID:   int64(1),
+		Email: "user11@example.com",
+	}
+	require.NoError(t, user_model.ActivateEmail(db.DefaultContext, email))
+
+	emails, _ := user_model.GetEmailAddresses(db.DefaultContext, int64(1))
+	assert.Len(t, emails, 3)
+	assert.True(t, emails[0].IsActivated)
+	assert.True(t, emails[0].IsPrimary)
+	assert.False(t, emails[1].IsPrimary)
+	assert.True(t, emails[2].IsActivated)
+	assert.False(t, emails[2].IsPrimary)
+}
+
+func TestListEmails(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// Must find all users and their emails
+	opts := &user_model.SearchEmailOptions{
+		ListOptions: db.ListOptions{
+			PageSize: 10000,
+		},
+	}
+	emails, count, err := user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.Greater(t, count, int64(5))
+
+	contains := func(match func(s *user_model.SearchEmailResult) bool) bool {
+		for _, v := range emails {
+			if match(v) {
+				return true
+			}
+		}
+		return false
+	}
+
+	assert.True(t, contains(func(s *user_model.SearchEmailResult) bool { return s.UID == 18 }))
+	// 'org3' is an organization
+	assert.False(t, contains(func(s *user_model.SearchEmailResult) bool { return s.UID == 3 }))
+
+	// Must find no records
+	opts = &user_model.SearchEmailOptions{Keyword: "NOTFOUND"}
+	emails, count, err = user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.Equal(t, int64(0), count)
+
+	// Must find users 'user2', 'user28', etc.
+	opts = &user_model.SearchEmailOptions{Keyword: "user2"}
+	emails, count, err = user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.NotEqual(t, int64(0), count)
+	assert.True(t, contains(func(s *user_model.SearchEmailResult) bool { return s.UID == 2 }))
+	assert.True(t, contains(func(s *user_model.SearchEmailResult) bool { return s.UID == 27 }))
+
+	// Must find only primary addresses (i.e. from the `user` table)
+	opts = &user_model.SearchEmailOptions{IsPrimary: optional.Some(true)}
+	emails, _, err = user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.True(t, contains(func(s *user_model.SearchEmailResult) bool { return s.IsPrimary }))
+	assert.False(t, contains(func(s *user_model.SearchEmailResult) bool { return !s.IsPrimary }))
+
+	// Must find only inactive addresses (i.e. not validated)
+	opts = &user_model.SearchEmailOptions{IsActivated: optional.Some(false)}
+	emails, _, err = user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.True(t, contains(func(s *user_model.SearchEmailResult) bool { return !s.IsActivated }))
+	assert.False(t, contains(func(s *user_model.SearchEmailResult) bool { return s.IsActivated }))
+
+	// Must find more than one page, but retrieve only one
+	opts = &user_model.SearchEmailOptions{
+		ListOptions: db.ListOptions{
+			PageSize: 5,
+			Page:     1,
+		},
+	}
+	emails, count, err = user_model.SearchEmails(db.DefaultContext, opts)
+	require.NoError(t, err)
+	assert.Len(t, emails, 5)
+	assert.Greater(t, count, int64(len(emails)))
+}
+
+func TestEmailAddressValidate(t *testing.T) {
+	kases := map[string]error{
+		"abc@gmail.com":                  nil,
+		"132@hotmail.com":                nil,
+		"1-3-2@test.org":                 nil,
+		"1.3.2@test.org":                 nil,
+		"a_123@test.org.cn":              nil,
+		`first.last@iana.org`:            nil,
+		`first!last@iana.org`:            nil,
+		`first#last@iana.org`:            nil,
+		`first$last@iana.org`:            nil,
+		`first%last@iana.org`:            nil,
+		`first&last@iana.org`:            nil,
+		`first'last@iana.org`:            nil,
+		`first*last@iana.org`:            nil,
+		`first+last@iana.org`:            nil,
+		`first/last@iana.org`:            nil,
+		`first=last@iana.org`:            nil,
+		`first?last@iana.org`:            nil,
+		`first^last@iana.org`:            nil,
+		"first`last@iana.org":            nil,
+		`first{last@iana.org`:            nil,
+		`first|last@iana.org`:            nil,
+		`first}last@iana.org`:            nil,
+		`first~last@iana.org`:            nil,
+		`first;last@iana.org`:            user_model.ErrEmailCharIsNotSupported{`first;last@iana.org`},
+		".233@qq.com":                    user_model.ErrEmailInvalid{".233@qq.com"},
+		"!233@qq.com":                    nil,
+		"#233@qq.com":                    nil,
+		"$233@qq.com":                    nil,
+		"%233@qq.com":                    nil,
+		"&233@qq.com":                    nil,
+		"'233@qq.com":                    nil,
+		"*233@qq.com":                    nil,
+		"+233@qq.com":                    nil,
+		"-233@qq.com":                    user_model.ErrEmailInvalid{"-233@qq.com"},
+		"/233@qq.com":                    nil,
+		"=233@qq.com":                    nil,
+		"?233@qq.com":                    nil,
+		"^233@qq.com":                    nil,
+		"_233@qq.com":                    nil,
+		"`233@qq.com":                    nil,
+		"{233@qq.com":                    nil,
+		"|233@qq.com":                    nil,
+		"}233@qq.com":                    nil,
+		"~233@qq.com":                    nil,
+		";233@qq.com":                    user_model.ErrEmailCharIsNotSupported{";233@qq.com"},
+		"Foo <foo@bar.com>":              user_model.ErrEmailCharIsNotSupported{"Foo <foo@bar.com>"},
+		string([]byte{0xE2, 0x84, 0xAA}): user_model.ErrEmailCharIsNotSupported{string([]byte{0xE2, 0x84, 0xAA})},
+	}
+	for kase, err := range kases {
+		t.Run(kase, func(t *testing.T) {
+			assert.EqualValues(t, err, user_model.ValidateEmail(kase))
+		})
+	}
+}
+
+func TestGetActivatedEmailAddresses(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testCases := []struct {
+		UID      int64
+		expected []*user_model.ActivatedEmailAddress
+	}{
+		{
+			UID:      1,
+			expected: []*user_model.ActivatedEmailAddress{{ID: 9, Email: "user1@example.com"}, {ID: 33, Email: "user1-2@example.com"}, {ID: 34, Email: "user1-3@example.com"}},
+		},
+		{
+			UID:      2,
+			expected: []*user_model.ActivatedEmailAddress{{ID: 3, Email: "user2@example.com"}},
+		},
+		{
+			UID:      4,
+			expected: []*user_model.ActivatedEmailAddress{{ID: 11, Email: "user4@example.com"}},
+		},
+		{
+			UID:      11,
+			expected: []*user_model.ActivatedEmailAddress{},
+		},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(fmt.Sprintf("User %d", testCase.UID), func(t *testing.T) {
+			emails, err := user_model.GetActivatedEmailAddresses(db.DefaultContext, testCase.UID)
+			require.NoError(t, err)
+			assert.Equal(t, testCase.expected, emails)
+		})
+	}
+}
diff --git a/models/user/error.go b/models/user/error.go
new file mode 100644
index 0000000..cbf1999
--- /dev/null
+++ b/models/user/error.go
@@ -0,0 +1,109 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrUserAlreadyExist represents a "user already exists" error.
+type ErrUserAlreadyExist struct {
+	Name string
+}
+
+// IsErrUserAlreadyExist checks if an error is a ErrUserAlreadyExists.
+func IsErrUserAlreadyExist(err error) bool {
+	_, ok := err.(ErrUserAlreadyExist)
+	return ok
+}
+
+func (err ErrUserAlreadyExist) Error() string {
+	return fmt.Sprintf("user already exists [name: %s]", err.Name)
+}
+
+// Unwrap unwraps this error as a ErrExist error
+func (err ErrUserAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrUserNotExist represents a "UserNotExist" kind of error.
+type ErrUserNotExist struct {
+	UID  int64
+	Name string
+}
+
+// IsErrUserNotExist checks if an error is a ErrUserNotExist.
+func IsErrUserNotExist(err error) bool {
+	_, ok := err.(ErrUserNotExist)
+	return ok
+}
+
+func (err ErrUserNotExist) Error() string {
+	return fmt.Sprintf("user does not exist [uid: %d, name: %s]", err.UID, err.Name)
+}
+
+// Unwrap unwraps this error as a ErrNotExist error
+func (err ErrUserNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrUserProhibitLogin represents a "ErrUserProhibitLogin" kind of error.
+type ErrUserProhibitLogin struct {
+	UID  int64
+	Name string
+}
+
+// IsErrUserProhibitLogin checks if an error is a ErrUserProhibitLogin
+func IsErrUserProhibitLogin(err error) bool {
+	_, ok := err.(ErrUserProhibitLogin)
+	return ok
+}
+
+func (err ErrUserProhibitLogin) Error() string {
+	return fmt.Sprintf("user is not allowed login [uid: %d, name: %s]", err.UID, err.Name)
+}
+
+// Unwrap unwraps this error as a ErrPermission error
+func (err ErrUserProhibitLogin) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrUserInactive represents a "ErrUserInactive" kind of error.
+type ErrUserInactive struct {
+	UID  int64
+	Name string
+}
+
+// IsErrUserInactive checks if an error is a ErrUserInactive
+func IsErrUserInactive(err error) bool {
+	_, ok := err.(ErrUserInactive)
+	return ok
+}
+
+func (err ErrUserInactive) Error() string {
+	return fmt.Sprintf("user is inactive [uid: %d, name: %s]", err.UID, err.Name)
+}
+
+// Unwrap unwraps this error as a ErrPermission error
+func (err ErrUserInactive) Unwrap() error {
+	return util.ErrPermissionDenied
+}
+
+// ErrUserIsNotLocal represents a "ErrUserIsNotLocal" kind of error.
+type ErrUserIsNotLocal struct {
+	UID  int64
+	Name string
+}
+
+func (err ErrUserIsNotLocal) Error() string {
+	return fmt.Sprintf("user is not local type [uid: %d, name: %s]", err.UID, err.Name)
+}
+
+// IsErrUserIsNotLocal
+func IsErrUserIsNotLocal(err error) bool {
+	_, ok := err.(ErrUserIsNotLocal)
+	return ok
+}
diff --git a/models/user/external_login_user.go b/models/user/external_login_user.go
new file mode 100644
index 0000000..965b7a5
--- /dev/null
+++ b/models/user/external_login_user.go
@@ -0,0 +1,184 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// ErrExternalLoginUserAlreadyExist represents a "ExternalLoginUserAlreadyExist" kind of error.
+type ErrExternalLoginUserAlreadyExist struct {
+	ExternalID    string
+	UserID        int64
+	LoginSourceID int64
+}
+
+// IsErrExternalLoginUserAlreadyExist checks if an error is a ExternalLoginUserAlreadyExist.
+func IsErrExternalLoginUserAlreadyExist(err error) bool {
+	_, ok := err.(ErrExternalLoginUserAlreadyExist)
+	return ok
+}
+
+func (err ErrExternalLoginUserAlreadyExist) Error() string {
+	return fmt.Sprintf("external login user already exists [externalID: %s, userID: %d, loginSourceID: %d]", err.ExternalID, err.UserID, err.LoginSourceID)
+}
+
+func (err ErrExternalLoginUserAlreadyExist) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// ErrExternalLoginUserNotExist represents a "ExternalLoginUserNotExist" kind of error.
+type ErrExternalLoginUserNotExist struct {
+	UserID        int64
+	LoginSourceID int64
+}
+
+// IsErrExternalLoginUserNotExist checks if an error is a ExternalLoginUserNotExist.
+func IsErrExternalLoginUserNotExist(err error) bool {
+	_, ok := err.(ErrExternalLoginUserNotExist)
+	return ok
+}
+
+func (err ErrExternalLoginUserNotExist) Error() string {
+	return fmt.Sprintf("external login user link does not exists [userID: %d, loginSourceID: %d]", err.UserID, err.LoginSourceID)
+}
+
+func (err ErrExternalLoginUserNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ExternalLoginUser makes the connecting between some existing user and additional external login sources
+type ExternalLoginUser struct {
+	ExternalID        string         `xorm:"pk NOT NULL"`
+	UserID            int64          `xorm:"INDEX NOT NULL"`
+	LoginSourceID     int64          `xorm:"pk NOT NULL"`
+	RawData           map[string]any `xorm:"TEXT JSON"`
+	Provider          string         `xorm:"index VARCHAR(25)"`
+	Email             string
+	Name              string
+	FirstName         string
+	LastName          string
+	NickName          string
+	Description       string
+	AvatarURL         string `xorm:"TEXT"`
+	Location          string
+	AccessToken       string `xorm:"TEXT"`
+	AccessTokenSecret string `xorm:"TEXT"`
+	RefreshToken      string `xorm:"TEXT"`
+	ExpiresAt         time.Time
+}
+
+type ExternalUserMigrated interface {
+	GetExternalName() string
+	GetExternalID() int64
+}
+
+type ExternalUserRemappable interface {
+	GetUserID() int64
+	RemapExternalUser(externalName string, externalID, userID int64) error
+	ExternalUserMigrated
+}
+
+func init() {
+	db.RegisterModel(new(ExternalLoginUser))
+}
+
+// GetExternalLogin checks if a externalID in loginSourceID scope already exists
+func GetExternalLogin(ctx context.Context, externalLoginUser *ExternalLoginUser) (bool, error) {
+	return db.GetEngine(ctx).Get(externalLoginUser)
+}
+
+// LinkExternalToUser link the external user to the user
+func LinkExternalToUser(ctx context.Context, user *User, externalLoginUser *ExternalLoginUser) error {
+	has, err := db.Exist[ExternalLoginUser](ctx, builder.Eq{
+		"external_id":     externalLoginUser.ExternalID,
+		"login_source_id": externalLoginUser.LoginSourceID,
+	})
+	if err != nil {
+		return err
+	} else if has {
+		return ErrExternalLoginUserAlreadyExist{externalLoginUser.ExternalID, user.ID, externalLoginUser.LoginSourceID}
+	}
+
+	_, err = db.GetEngine(ctx).Insert(externalLoginUser)
+	return err
+}
+
+// RemoveAccountLink will remove all external login sources for the given user
+func RemoveAccountLink(ctx context.Context, user *User, loginSourceID int64) (int64, error) {
+	deleted, err := db.GetEngine(ctx).Delete(&ExternalLoginUser{UserID: user.ID, LoginSourceID: loginSourceID})
+	if err != nil {
+		return deleted, err
+	}
+	if deleted < 1 {
+		return deleted, ErrExternalLoginUserNotExist{user.ID, loginSourceID}
+	}
+	return deleted, err
+}
+
+// RemoveAllAccountLinks will remove all external login sources for the given user
+func RemoveAllAccountLinks(ctx context.Context, user *User) error {
+	_, err := db.GetEngine(ctx).Delete(&ExternalLoginUser{UserID: user.ID})
+	return err
+}
+
+// GetUserIDByExternalUserID get user id according to provider and userID
+func GetUserIDByExternalUserID(ctx context.Context, provider, userID string) (int64, error) {
+	var id int64
+	_, err := db.GetEngine(ctx).Table("external_login_user").
+		Select("user_id").
+		Where("provider=?", provider).
+		And("external_id=?", userID).
+		Get(&id)
+	if err != nil {
+		return 0, err
+	}
+	return id, nil
+}
+
+// UpdateExternalUserByExternalID updates an external user's information
+func UpdateExternalUserByExternalID(ctx context.Context, external *ExternalLoginUser) error {
+	has, err := db.Exist[ExternalLoginUser](ctx, builder.Eq{
+		"external_id":     external.ExternalID,
+		"login_source_id": external.LoginSourceID,
+	})
+	if err != nil {
+		return err
+	} else if !has {
+		return ErrExternalLoginUserNotExist{external.UserID, external.LoginSourceID}
+	}
+
+	_, err = db.GetEngine(ctx).Where("external_id=? AND login_source_id=?", external.ExternalID, external.LoginSourceID).AllCols().Update(external)
+	return err
+}
+
+// FindExternalUserOptions represents an options to find external users
+type FindExternalUserOptions struct {
+	db.ListOptions
+	Provider string
+	UserID   int64
+	OrderBy  string
+}
+
+func (opts FindExternalUserOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if len(opts.Provider) > 0 {
+		cond = cond.And(builder.Eq{"provider": opts.Provider})
+	}
+	if opts.UserID > 0 {
+		cond = cond.And(builder.Eq{"user_id": opts.UserID})
+	}
+	return cond
+}
+
+func (opts FindExternalUserOptions) ToOrders() string {
+	return opts.OrderBy
+}
diff --git a/models/user/federated_user.go b/models/user/federated_user.go
new file mode 100644
index 0000000..1fc42c3
--- /dev/null
+++ b/models/user/federated_user.go
@@ -0,0 +1,35 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"code.gitea.io/gitea/modules/validation"
+)
+
+type FederatedUser struct {
+	ID               int64  `xorm:"pk autoincr"`
+	UserID           int64  `xorm:"NOT NULL"`
+	ExternalID       string `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+	FederationHostID int64  `xorm:"UNIQUE(federation_user_mapping) NOT NULL"`
+}
+
+func NewFederatedUser(userID int64, externalID string, federationHostID int64) (FederatedUser, error) {
+	result := FederatedUser{
+		UserID:           userID,
+		ExternalID:       externalID,
+		FederationHostID: federationHostID,
+	}
+	if valid, err := validation.IsValid(result); !valid {
+		return FederatedUser{}, err
+	}
+	return result, nil
+}
+
+func (user FederatedUser) Validate() []string {
+	var result []string
+	result = append(result, validation.ValidateNotEmpty(user.UserID, "UserID")...)
+	result = append(result, validation.ValidateNotEmpty(user.ExternalID, "ExternalID")...)
+	result = append(result, validation.ValidateNotEmpty(user.FederationHostID, "FederationHostID")...)
+	return result
+}
diff --git a/models/user/federated_user_test.go b/models/user/federated_user_test.go
new file mode 100644
index 0000000..6a21126
--- /dev/null
+++ b/models/user/federated_user_test.go
@@ -0,0 +1,29 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func Test_FederatedUserValidation(t *testing.T) {
+	sut := FederatedUser{
+		UserID:           12,
+		ExternalID:       "12",
+		FederationHostID: 1,
+	}
+	if res, err := validation.IsValid(sut); !res {
+		t.Errorf("sut should be valid but was %q", err)
+	}
+
+	sut = FederatedUser{
+		ExternalID:       "12",
+		FederationHostID: 1,
+	}
+	if res, _ := validation.IsValid(sut); res {
+		t.Errorf("sut should be invalid")
+	}
+}
diff --git a/models/user/fixtures/user.yml b/models/user/fixtures/user.yml
new file mode 100644
index 0000000..b1892f3
--- /dev/null
+++ b/models/user/fixtures/user.yml
@@ -0,0 +1,36 @@
+-
+  id: 1041
+  lower_name: remote01
+  name: remote01
+  full_name: Remote01
+  email: remote01@example.com
+  keep_email_private: false
+  email_notifications_preference: onmention
+  passwd: ZogKvWdyEx:password
+  passwd_hash_algo: dummy
+  must_change_password: false
+  login_source: 1001
+  login_name: 123
+  type: 5
+  salt: ZogKvWdyEx
+  max_repo_creation: -1
+  is_active: true
+  is_admin: false
+  is_restricted: false
+  allow_git_hook: false
+  allow_import_local: false
+  allow_create_organization: true
+  prohibit_login: true
+  avatar: avatarremote01
+  avatar_email: avatarremote01@example.com
+  use_custom_avatar: false
+  num_followers: 0
+  num_following: 0
+  num_stars: 0
+  num_repos: 0
+  num_teams: 0
+  num_members: 0
+  visibility: 0
+  repo_admin_change_team_access: false
+  theme: ""
+  keep_activity_private: false
diff --git a/models/user/follow.go b/models/user/follow.go
new file mode 100644
index 0000000..9c3283b
--- /dev/null
+++ b/models/user/follow.go
@@ -0,0 +1,85 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+)
+
+// Follow represents relations of user and their followers.
+type Follow struct {
+	ID          int64              `xorm:"pk autoincr"`
+	UserID      int64              `xorm:"UNIQUE(follow)"`
+	FollowID    int64              `xorm:"UNIQUE(follow)"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+}
+
+func init() {
+	db.RegisterModel(new(Follow))
+}
+
+// IsFollowing returns true if user is following followID.
+func IsFollowing(ctx context.Context, userID, followID int64) bool {
+	has, _ := db.GetEngine(ctx).Get(&Follow{UserID: userID, FollowID: followID})
+	return has
+}
+
+// FollowUser marks someone be another's follower.
+func FollowUser(ctx context.Context, userID, followID int64) (err error) {
+	if userID == followID || IsFollowing(ctx, userID, followID) {
+		return nil
+	}
+
+	if IsBlocked(ctx, userID, followID) || IsBlocked(ctx, followID, userID) {
+		return ErrBlockedByUser
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err = db.Insert(ctx, &Follow{UserID: userID, FollowID: followID}); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `user` SET num_followers = num_followers + 1 WHERE id = ?", followID); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `user` SET num_following = num_following + 1 WHERE id = ?", userID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
+
+// UnfollowUser unmarks someone as another's follower.
+func UnfollowUser(ctx context.Context, userID, followID int64) (err error) {
+	if userID == followID || !IsFollowing(ctx, userID, followID) {
+		return nil
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if _, err = db.DeleteByBean(ctx, &Follow{UserID: userID, FollowID: followID}); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `user` SET num_followers = num_followers - 1 WHERE id = ?", followID); err != nil {
+		return err
+	}
+
+	if _, err = db.Exec(ctx, "UPDATE `user` SET num_following = num_following - 1 WHERE id = ?", userID); err != nil {
+		return err
+	}
+	return committer.Commit()
+}
diff --git a/models/user/follow_test.go b/models/user/follow_test.go
new file mode 100644
index 0000000..8c56164
--- /dev/null
+++ b/models/user/follow_test.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIsFollowing(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	assert.True(t, user_model.IsFollowing(db.DefaultContext, 4, 2))
+	assert.False(t, user_model.IsFollowing(db.DefaultContext, 2, 4))
+	assert.False(t, user_model.IsFollowing(db.DefaultContext, 5, unittest.NonexistentID))
+	assert.False(t, user_model.IsFollowing(db.DefaultContext, unittest.NonexistentID, 5))
+	assert.False(t, user_model.IsFollowing(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID))
+}
diff --git a/models/user/list.go b/models/user/list.go
new file mode 100644
index 0000000..ca589d1
--- /dev/null
+++ b/models/user/list.go
@@ -0,0 +1,83 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+)
+
+// UserList is a list of user.
+// This type provide valuable methods to retrieve information for a group of users efficiently.
+type UserList []*User //revive:disable-line:exported
+
+// GetUserIDs returns a slice of user's id
+func (users UserList) GetUserIDs() []int64 {
+	userIDs := make([]int64, 0, len(users))
+	for _, user := range users {
+		userIDs = append(userIDs, user.ID) // Considering that user id are unique in the list
+	}
+	return userIDs
+}
+
+// GetTwoFaStatus return state of 2FA enrollement
+func (users UserList) GetTwoFaStatus(ctx context.Context) map[int64]bool {
+	results := make(map[int64]bool, len(users))
+	for _, user := range users {
+		results[user.ID] = false // Set default to false
+	}
+
+	if tokenMaps, err := users.loadTwoFactorStatus(ctx); err == nil {
+		for _, token := range tokenMaps {
+			results[token.UID] = true
+		}
+	}
+
+	if ids, err := users.userIDsWithWebAuthn(ctx); err == nil {
+		for _, id := range ids {
+			results[id] = true
+		}
+	}
+
+	return results
+}
+
+func (users UserList) loadTwoFactorStatus(ctx context.Context) (map[int64]*auth.TwoFactor, error) {
+	if len(users) == 0 {
+		return nil, nil
+	}
+
+	userIDs := users.GetUserIDs()
+	tokenMaps := make(map[int64]*auth.TwoFactor, len(userIDs))
+	if err := db.GetEngine(ctx).In("uid", userIDs).Find(&tokenMaps); err != nil {
+		return nil, fmt.Errorf("find two factor: %w", err)
+	}
+	return tokenMaps, nil
+}
+
+func (users UserList) userIDsWithWebAuthn(ctx context.Context) ([]int64, error) {
+	if len(users) == 0 {
+		return nil, nil
+	}
+	ids := make([]int64, 0, len(users))
+	if err := db.GetEngine(ctx).Table(new(auth.WebAuthnCredential)).In("user_id", users.GetUserIDs()).Select("user_id").Distinct("user_id").Find(&ids); err != nil {
+		return nil, fmt.Errorf("find two factor: %w", err)
+	}
+	return ids, nil
+}
+
+// GetUsersByIDs returns all resolved users from a list of Ids.
+func GetUsersByIDs(ctx context.Context, ids []int64) (UserList, error) {
+	ous := make([]*User, 0, len(ids))
+	if len(ids) == 0 {
+		return ous, nil
+	}
+	err := db.GetEngine(ctx).In("id", ids).
+		Asc("name").
+		Find(&ous)
+	return ous, err
+}
diff --git a/models/user/main_test.go b/models/user/main_test.go
new file mode 100644
index 0000000..a626d32
--- /dev/null
+++ b/models/user/main_test.go
@@ -0,0 +1,19 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+
+	_ "code.gitea.io/gitea/models"
+	_ "code.gitea.io/gitea/models/actions"
+	_ "code.gitea.io/gitea/models/activities"
+	_ "code.gitea.io/gitea/models/user"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m)
+}
diff --git a/models/user/must_change_password.go b/models/user/must_change_password.go
new file mode 100644
index 0000000..7eab08d
--- /dev/null
+++ b/models/user/must_change_password.go
@@ -0,0 +1,49 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+func SetMustChangePassword(ctx context.Context, all, mustChangePassword bool, include, exclude []string) (int64, error) {
+	sliceTrimSpaceDropEmpty := func(input []string) []string {
+		output := make([]string, 0, len(input))
+		for _, in := range input {
+			in = strings.ToLower(strings.TrimSpace(in))
+			if in == "" {
+				continue
+			}
+			output = append(output, in)
+		}
+		return output
+	}
+
+	var cond builder.Cond
+
+	// Only include the users where something changes to get an accurate count
+	cond = builder.Neq{"must_change_password": mustChangePassword}
+
+	if !all {
+		include = sliceTrimSpaceDropEmpty(include)
+		if len(include) == 0 {
+			return 0, util.NewSilentWrapErrorf(util.ErrInvalidArgument, "no users to include provided")
+		}
+
+		cond = cond.And(builder.In("lower_name", include))
+	}
+
+	exclude = sliceTrimSpaceDropEmpty(exclude)
+	if len(exclude) > 0 {
+		cond = cond.And(builder.NotIn("lower_name", exclude))
+	}
+
+	return db.GetEngine(ctx).Where(cond).MustCols("must_change_password").Update(&User{MustChangePassword: mustChangePassword})
+}
diff --git a/models/user/openid.go b/models/user/openid.go
new file mode 100644
index 0000000..ee4ecab
--- /dev/null
+++ b/models/user/openid.go
@@ -0,0 +1,111 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrOpenIDNotExist openid is not known
+var ErrOpenIDNotExist = util.NewNotExistErrorf("OpenID is unknown")
+
+// UserOpenID is the list of all OpenID identities of a user.
+// Since this is a middle table, name it OpenID is not suitable, so we ignore the lint here
+type UserOpenID struct { //revive:disable-line:exported
+	ID   int64  `xorm:"pk autoincr"`
+	UID  int64  `xorm:"INDEX NOT NULL"`
+	URI  string `xorm:"UNIQUE NOT NULL"`
+	Show bool   `xorm:"DEFAULT false"`
+}
+
+func init() {
+	db.RegisterModel(new(UserOpenID))
+}
+
+// GetUserOpenIDs returns all openid addresses that belongs to given user.
+func GetUserOpenIDs(ctx context.Context, uid int64) ([]*UserOpenID, error) {
+	openids := make([]*UserOpenID, 0, 5)
+	if err := db.GetEngine(ctx).
+		Where("uid=?", uid).
+		Asc("id").
+		Find(&openids); err != nil {
+		return nil, err
+	}
+
+	return openids, nil
+}
+
+// isOpenIDUsed returns true if the openid has been used.
+func isOpenIDUsed(ctx context.Context, uri string) (bool, error) {
+	if len(uri) == 0 {
+		return true, nil
+	}
+
+	return db.GetEngine(ctx).Get(&UserOpenID{URI: uri})
+}
+
+// ErrOpenIDAlreadyUsed represents a "OpenIDAlreadyUsed" kind of error.
+type ErrOpenIDAlreadyUsed struct {
+	OpenID string
+}
+
+// IsErrOpenIDAlreadyUsed checks if an error is a ErrOpenIDAlreadyUsed.
+func IsErrOpenIDAlreadyUsed(err error) bool {
+	_, ok := err.(ErrOpenIDAlreadyUsed)
+	return ok
+}
+
+func (err ErrOpenIDAlreadyUsed) Error() string {
+	return fmt.Sprintf("OpenID already in use [oid: %s]", err.OpenID)
+}
+
+func (err ErrOpenIDAlreadyUsed) Unwrap() error {
+	return util.ErrAlreadyExist
+}
+
+// AddUserOpenID adds an pre-verified/normalized OpenID URI to given user.
+// NOTE: make sure openid.URI is normalized already
+func AddUserOpenID(ctx context.Context, openid *UserOpenID) error {
+	used, err := isOpenIDUsed(ctx, openid.URI)
+	if err != nil {
+		return err
+	} else if used {
+		return ErrOpenIDAlreadyUsed{openid.URI}
+	}
+
+	return db.Insert(ctx, openid)
+}
+
+// DeleteUserOpenID deletes an openid address of given user.
+func DeleteUserOpenID(ctx context.Context, openid *UserOpenID) (err error) {
+	var deleted int64
+	// ask to check UID
+	address := UserOpenID{
+		UID: openid.UID,
+	}
+	if openid.ID > 0 {
+		deleted, err = db.GetEngine(ctx).ID(openid.ID).Delete(&address)
+	} else {
+		deleted, err = db.GetEngine(ctx).
+			Where("openid=?", openid.URI).
+			Delete(&address)
+	}
+
+	if err != nil {
+		return err
+	} else if deleted != 1 {
+		return ErrOpenIDNotExist
+	}
+	return nil
+}
+
+// ToggleUserOpenIDVisibility toggles visibility of an openid address of given user.
+func ToggleUserOpenIDVisibility(ctx context.Context, id int64) (err error) {
+	_, err = db.GetEngine(ctx).Exec("update `user_open_id` set `show` = not `show` where `id` = ?", id)
+	return err
+}
diff --git a/models/user/openid_test.go b/models/user/openid_test.go
new file mode 100644
index 0000000..c2857aa
--- /dev/null
+++ b/models/user/openid_test.go
@@ -0,0 +1,68 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetUserOpenIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	oids, err := user_model.GetUserOpenIDs(db.DefaultContext, int64(1))
+	require.NoError(t, err)
+
+	if assert.Len(t, oids, 2) {
+		assert.Equal(t, "https://user1.domain1.tld/", oids[0].URI)
+		assert.False(t, oids[0].Show)
+		assert.Equal(t, "http://user1.domain2.tld/", oids[1].URI)
+		assert.True(t, oids[1].Show)
+	}
+
+	oids, err = user_model.GetUserOpenIDs(db.DefaultContext, int64(2))
+	require.NoError(t, err)
+
+	if assert.Len(t, oids, 1) {
+		assert.Equal(t, "https://domain1.tld/user2/", oids[0].URI)
+		assert.True(t, oids[0].Show)
+	}
+}
+
+func TestToggleUserOpenIDVisibility(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	oids, err := user_model.GetUserOpenIDs(db.DefaultContext, int64(2))
+	require.NoError(t, err)
+
+	if !assert.Len(t, oids, 1) {
+		return
+	}
+	assert.True(t, oids[0].Show)
+
+	err = user_model.ToggleUserOpenIDVisibility(db.DefaultContext, oids[0].ID)
+	require.NoError(t, err)
+
+	oids, err = user_model.GetUserOpenIDs(db.DefaultContext, int64(2))
+	require.NoError(t, err)
+
+	if !assert.Len(t, oids, 1) {
+		return
+	}
+	assert.False(t, oids[0].Show)
+	err = user_model.ToggleUserOpenIDVisibility(db.DefaultContext, oids[0].ID)
+	require.NoError(t, err)
+
+	oids, err = user_model.GetUserOpenIDs(db.DefaultContext, int64(2))
+	require.NoError(t, err)
+
+	if assert.Len(t, oids, 1) {
+		assert.True(t, oids[0].Show)
+	}
+}
diff --git a/models/user/redirect.go b/models/user/redirect.go
new file mode 100644
index 0000000..5a40d4d
--- /dev/null
+++ b/models/user/redirect.go
@@ -0,0 +1,87 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// ErrUserRedirectNotExist represents a "UserRedirectNotExist" kind of error.
+type ErrUserRedirectNotExist struct {
+	Name string
+}
+
+// IsErrUserRedirectNotExist check if an error is an ErrUserRedirectNotExist.
+func IsErrUserRedirectNotExist(err error) bool {
+	_, ok := err.(ErrUserRedirectNotExist)
+	return ok
+}
+
+func (err ErrUserRedirectNotExist) Error() string {
+	return fmt.Sprintf("user redirect does not exist [name: %s]", err.Name)
+}
+
+func (err ErrUserRedirectNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// Redirect represents that a user name should be redirected to another
+type Redirect struct {
+	ID             int64  `xorm:"pk autoincr"`
+	LowerName      string `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	RedirectUserID int64  // userID to redirect to
+}
+
+// TableName provides the real table name
+func (Redirect) TableName() string {
+	return "user_redirect"
+}
+
+func init() {
+	db.RegisterModel(new(Redirect))
+}
+
+// LookupUserRedirect look up userID if a user has a redirect name
+func LookupUserRedirect(ctx context.Context, userName string) (int64, error) {
+	userName = strings.ToLower(userName)
+	redirect := &Redirect{LowerName: userName}
+	if has, err := db.GetEngine(ctx).Get(redirect); err != nil {
+		return 0, err
+	} else if !has {
+		return 0, ErrUserRedirectNotExist{Name: userName}
+	}
+	return redirect.RedirectUserID, nil
+}
+
+// NewUserRedirect create a new user redirect
+func NewUserRedirect(ctx context.Context, ID int64, oldUserName, newUserName string) error {
+	oldUserName = strings.ToLower(oldUserName)
+	newUserName = strings.ToLower(newUserName)
+
+	if err := DeleteUserRedirect(ctx, oldUserName); err != nil {
+		return err
+	}
+
+	if err := DeleteUserRedirect(ctx, newUserName); err != nil {
+		return err
+	}
+
+	return db.Insert(ctx, &Redirect{
+		LowerName:      oldUserName,
+		RedirectUserID: ID,
+	})
+}
+
+// DeleteUserRedirect delete any redirect from the specified user name to
+// anything else
+func DeleteUserRedirect(ctx context.Context, userName string) error {
+	userName = strings.ToLower(userName)
+	_, err := db.GetEngine(ctx).Delete(&Redirect{LowerName: userName})
+	return err
+}
diff --git a/models/user/redirect_test.go b/models/user/redirect_test.go
new file mode 100644
index 0000000..35fd29a
--- /dev/null
+++ b/models/user/redirect_test.go
@@ -0,0 +1,26 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLookupUserRedirect(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	userID, err := user_model.LookupUserRedirect(db.DefaultContext, "olduser1")
+	require.NoError(t, err)
+	assert.EqualValues(t, 1, userID)
+
+	_, err = user_model.LookupUserRedirect(db.DefaultContext, "doesnotexist")
+	assert.True(t, user_model.IsErrUserRedirectNotExist(err))
+}
diff --git a/models/user/search.go b/models/user/search.go
new file mode 100644
index 0000000..04c434e
--- /dev/null
+++ b/models/user/search.go
@@ -0,0 +1,178 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/structs"
+
+	"xorm.io/builder"
+	"xorm.io/xorm"
+)
+
+// SearchUserOptions contains the options for searching
+type SearchUserOptions struct {
+	db.ListOptions
+
+	Keyword       string
+	Type          UserType
+	UID           int64
+	LoginName     string // this option should be used only for admin user
+	SourceID      int64  // this option should be used only for admin user
+	OrderBy       db.SearchOrderBy
+	Visible       []structs.VisibleType
+	Actor         *User // The user doing the search
+	SearchByEmail bool  // Search by email as well as username/full name
+
+	SupportedSortOrders container.Set[string] // if not nil, only allow to use the sort orders in this set
+
+	IsActive           optional.Option[bool]
+	IsAdmin            optional.Option[bool]
+	IsRestricted       optional.Option[bool]
+	IsTwoFactorEnabled optional.Option[bool]
+	IsProhibitLogin    optional.Option[bool]
+	IncludeReserved    bool
+
+	ExtraParamStrings map[string]string
+}
+
+func (opts *SearchUserOptions) toSearchQueryBase(ctx context.Context) *xorm.Session {
+	var cond builder.Cond
+	if opts.Type == UserTypeIndividual {
+		cond = builder.In("type", UserTypeIndividual, UserTypeRemoteUser)
+	} else {
+		cond = builder.Eq{"type": opts.Type}
+	}
+	if opts.IncludeReserved {
+		if opts.Type == UserTypeIndividual {
+			cond = cond.Or(builder.Eq{"type": UserTypeUserReserved}).Or(
+				builder.Eq{"type": UserTypeBot},
+			).Or(
+				builder.Eq{"type": UserTypeRemoteUser},
+			)
+		} else if opts.Type == UserTypeOrganization {
+			cond = cond.Or(builder.Eq{"type": UserTypeOrganizationReserved})
+		}
+	}
+
+	if len(opts.Keyword) > 0 {
+		lowerKeyword := strings.ToLower(opts.Keyword)
+		keywordCond := builder.Or(
+			builder.Like{"lower_name", lowerKeyword},
+			builder.Like{"LOWER(full_name)", lowerKeyword},
+		)
+		if opts.SearchByEmail {
+			keywordCond = keywordCond.Or(builder.Like{"LOWER(email)", lowerKeyword})
+		}
+
+		cond = cond.And(keywordCond)
+	}
+
+	// If visibility filtered
+	if len(opts.Visible) > 0 {
+		cond = cond.And(builder.In("visibility", opts.Visible))
+	}
+
+	cond = cond.And(BuildCanSeeUserCondition(opts.Actor))
+
+	if opts.UID > 0 {
+		cond = cond.And(builder.Eq{"id": opts.UID})
+	}
+
+	if opts.SourceID > 0 {
+		cond = cond.And(builder.Eq{"login_source": opts.SourceID})
+	}
+	if opts.LoginName != "" {
+		cond = cond.And(builder.Eq{"login_name": opts.LoginName})
+	}
+
+	if opts.IsActive.Has() {
+		cond = cond.And(builder.Eq{"is_active": opts.IsActive.Value()})
+	}
+
+	if opts.IsAdmin.Has() {
+		cond = cond.And(builder.Eq{"is_admin": opts.IsAdmin.Value()})
+	}
+
+	if opts.IsRestricted.Has() {
+		cond = cond.And(builder.Eq{"is_restricted": opts.IsRestricted.Value()})
+	}
+
+	if opts.IsProhibitLogin.Has() {
+		cond = cond.And(builder.Eq{"prohibit_login": opts.IsProhibitLogin.Value()})
+	}
+
+	e := db.GetEngine(ctx)
+	if !opts.IsTwoFactorEnabled.Has() {
+		return e.Where(cond)
+	}
+
+	// 2fa filter uses LEFT JOIN to check whether a user has a 2fa record
+	// While using LEFT JOIN, sometimes the performance might not be good, but it won't be a problem now, such SQL is seldom executed.
+	// There are some possible methods to refactor this SQL in future when we really need to optimize the performance (but not now):
+	// (1) add a column in user table (2) add a setting value in user_setting table (3) use search engines (bleve/elasticsearch)
+	if opts.IsTwoFactorEnabled.Value() {
+		cond = cond.And(builder.Expr("two_factor.uid IS NOT NULL"))
+	} else {
+		cond = cond.And(builder.Expr("two_factor.uid IS NULL"))
+	}
+
+	return e.Join("LEFT OUTER", "two_factor", "two_factor.uid = `user`.id").
+		Where(cond)
+}
+
+// SearchUsers takes options i.e. keyword and part of user name to search,
+// it returns results in given range and number of total results.
+func SearchUsers(ctx context.Context, opts *SearchUserOptions) (users []*User, _ int64, _ error) {
+	sessCount := opts.toSearchQueryBase(ctx)
+	defer sessCount.Close()
+	count, err := sessCount.Count(new(User))
+	if err != nil {
+		return nil, 0, fmt.Errorf("count: %w", err)
+	}
+
+	if len(opts.OrderBy) == 0 {
+		opts.OrderBy = db.SearchOrderByAlphabetically
+	}
+
+	sessQuery := opts.toSearchQueryBase(ctx).OrderBy(opts.OrderBy.String())
+	defer sessQuery.Close()
+	if opts.PageSize > 0 {
+		sessQuery = db.SetSessionPagination(sessQuery, opts)
+	}
+
+	// the sql may contain JOIN, so we must only select User related columns
+	sessQuery = sessQuery.Select("`user`.*")
+	users = make([]*User, 0, opts.PageSize)
+	return users, count, sessQuery.Find(&users)
+}
+
+// BuildCanSeeUserCondition creates a condition which can be used to restrict results to users/orgs the actor can see
+func BuildCanSeeUserCondition(actor *User) builder.Cond {
+	if actor != nil {
+		// If Admin - they see all users!
+		if !actor.IsAdmin {
+			// Users can see an organization they are a member of
+			cond := builder.In("`user`.id", builder.Select("org_id").From("org_user").Where(builder.Eq{"uid": actor.ID}))
+			if !actor.IsRestricted {
+				// Not-Restricted users can see public and limited users/organizations
+				cond = cond.Or(builder.In("`user`.visibility", structs.VisibleTypePublic, structs.VisibleTypeLimited))
+			}
+			// Don't forget about self
+			return cond.Or(builder.Eq{"`user`.id": actor.ID})
+		}
+
+		return nil
+	}
+
+	// Force visibility for privacy
+	// Not logged in - only public users
+	return builder.In("`user`.visibility", structs.VisibleTypePublic)
+}
diff --git a/models/user/setting.go b/models/user/setting.go
new file mode 100644
index 0000000..b4af0e5
--- /dev/null
+++ b/models/user/setting.go
@@ -0,0 +1,212 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/cache"
+	setting_module "code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/util"
+
+	"xorm.io/builder"
+)
+
+// Setting is a key value store of user settings
+type Setting struct {
+	ID           int64  `xorm:"pk autoincr"`
+	UserID       int64  `xorm:"index unique(key_userid)"`              // to load all of someone's settings
+	SettingKey   string `xorm:"varchar(255) index unique(key_userid)"` // ensure key is always lowercase
+	SettingValue string `xorm:"text"`
+}
+
+// TableName sets the table name for the settings struct
+func (s *Setting) TableName() string {
+	return "user_setting"
+}
+
+func init() {
+	db.RegisterModel(new(Setting))
+}
+
+// ErrUserSettingIsNotExist represents an error that a setting is not exist with special key
+type ErrUserSettingIsNotExist struct {
+	Key string
+}
+
+// Error implements error
+func (err ErrUserSettingIsNotExist) Error() string {
+	return fmt.Sprintf("Setting[%s] is not exist", err.Key)
+}
+
+func (err ErrUserSettingIsNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// IsErrUserSettingIsNotExist return true if err is ErrSettingIsNotExist
+func IsErrUserSettingIsNotExist(err error) bool {
+	_, ok := err.(ErrUserSettingIsNotExist)
+	return ok
+}
+
+// genSettingCacheKey returns the cache key for some configuration
+func genSettingCacheKey(userID int64, key string) string {
+	return fmt.Sprintf("user_%d.setting.%s", userID, key)
+}
+
+// GetSetting returns the setting value via the key
+func GetSetting(ctx context.Context, uid int64, key string) (string, error) {
+	return cache.GetString(genSettingCacheKey(uid, key), func() (string, error) {
+		res, err := GetSettingNoCache(ctx, uid, key)
+		if err != nil {
+			return "", err
+		}
+		return res.SettingValue, nil
+	})
+}
+
+// GetSettingNoCache returns specific setting without using the cache
+func GetSettingNoCache(ctx context.Context, uid int64, key string) (*Setting, error) {
+	v, err := GetSettings(ctx, uid, []string{key})
+	if err != nil {
+		return nil, err
+	}
+	if len(v) == 0 {
+		return nil, ErrUserSettingIsNotExist{key}
+	}
+	return v[key], nil
+}
+
+// GetSettings returns specific settings from user
+func GetSettings(ctx context.Context, uid int64, keys []string) (map[string]*Setting, error) {
+	settings := make([]*Setting, 0, len(keys))
+	if err := db.GetEngine(ctx).
+		Where("user_id=?", uid).
+		And(builder.In("setting_key", keys)).
+		Find(&settings); err != nil {
+		return nil, err
+	}
+	settingsMap := make(map[string]*Setting)
+	for _, s := range settings {
+		settingsMap[s.SettingKey] = s
+	}
+	return settingsMap, nil
+}
+
+// GetUserAllSettings returns all settings from user
+func GetUserAllSettings(ctx context.Context, uid int64) (map[string]*Setting, error) {
+	settings := make([]*Setting, 0, 5)
+	if err := db.GetEngine(ctx).
+		Where("user_id=?", uid).
+		Find(&settings); err != nil {
+		return nil, err
+	}
+	settingsMap := make(map[string]*Setting)
+	for _, s := range settings {
+		settingsMap[s.SettingKey] = s
+	}
+	return settingsMap, nil
+}
+
+func validateUserSettingKey(key string) error {
+	if len(key) == 0 {
+		return fmt.Errorf("setting key must be set")
+	}
+	if strings.ToLower(key) != key {
+		return fmt.Errorf("setting key should be lowercase")
+	}
+	return nil
+}
+
+// GetUserSetting gets a specific setting for a user
+func GetUserSetting(ctx context.Context, userID int64, key string, def ...string) (string, error) {
+	if err := validateUserSettingKey(key); err != nil {
+		return "", err
+	}
+
+	setting := &Setting{UserID: userID, SettingKey: key}
+	has, err := db.GetEngine(ctx).Get(setting)
+	if err != nil {
+		return "", err
+	}
+	if !has {
+		if len(def) == 1 {
+			return def[0], nil
+		}
+		return "", nil
+	}
+	return setting.SettingValue, nil
+}
+
+// DeleteUserSetting deletes a specific setting for a user
+func DeleteUserSetting(ctx context.Context, userID int64, key string) error {
+	if err := validateUserSettingKey(key); err != nil {
+		return err
+	}
+
+	cache.Remove(genSettingCacheKey(userID, key))
+	_, err := db.GetEngine(ctx).Delete(&Setting{UserID: userID, SettingKey: key})
+
+	return err
+}
+
+// SetUserSetting updates a users' setting for a specific key
+func SetUserSetting(ctx context.Context, userID int64, key, value string) error {
+	if err := validateUserSettingKey(key); err != nil {
+		return err
+	}
+
+	if err := upsertUserSettingValue(ctx, userID, key, value); err != nil {
+		return err
+	}
+
+	cc := cache.GetCache()
+	if cc != nil {
+		return cc.Put(genSettingCacheKey(userID, key), value, setting_module.CacheService.TTLSeconds())
+	}
+
+	return nil
+}
+
+func upsertUserSettingValue(ctx context.Context, userID int64, key, value string) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		e := db.GetEngine(ctx)
+
+		// here we use a general method to do a safe upsert for different databases (and most transaction levels)
+		// 1. try to UPDATE the record and acquire the transaction write lock
+		//    if UPDATE returns non-zero rows are changed, OK, the setting is saved correctly
+		//    if UPDATE returns "0 rows changed", two possibilities: (a) record doesn't exist  (b) value is not changed
+		// 2. do a SELECT to check if the row exists or not (we already have the transaction lock)
+		// 3. if the row doesn't exist, do an INSERT (we are still protected by the transaction lock, so it's safe)
+		//
+		// to optimize the SELECT in step 2, we can use an extra column like `revision=revision+1`
+		//    to make sure the UPDATE always returns a non-zero value for existing (unchanged) records.
+
+		res, err := e.Exec("UPDATE user_setting SET setting_value=? WHERE setting_key=? AND user_id=?", value, key, userID)
+		if err != nil {
+			return err
+		}
+		rows, _ := res.RowsAffected()
+		if rows > 0 {
+			// the existing row is updated, so we can return
+			return nil
+		}
+
+		// in case the value isn't changed, update would return 0 rows changed, so we need this check
+		has, err := e.Exist(&Setting{UserID: userID, SettingKey: key})
+		if err != nil {
+			return err
+		}
+		if has {
+			return nil
+		}
+
+		// if no existing row, insert a new row
+		_, err = e.Insert(&Setting{UserID: userID, SettingKey: key, SettingValue: value})
+		return err
+	})
+}
diff --git a/models/user/setting_keys.go b/models/user/setting_keys.go
new file mode 100644
index 0000000..0e2c936
--- /dev/null
+++ b/models/user/setting_keys.go
@@ -0,0 +1,17 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+const (
+	// SettingsKeyHiddenCommentTypes is the setting key for hidden comment types
+	SettingsKeyHiddenCommentTypes = "issue.hidden_comment_types"
+	// SettingsKeyDiffWhitespaceBehavior is the setting key for whitespace behavior of diff
+	SettingsKeyDiffWhitespaceBehavior = "diff.whitespace_behaviour"
+	// SettingsKeyShowOutdatedComments is the setting key whether or not to show outdated comments in PRs
+	SettingsKeyShowOutdatedComments = "comment_code.show_outdated"
+	// UserActivityPubPrivPem is user's private key
+	UserActivityPubPrivPem = "activitypub.priv_pem"
+	// UserActivityPubPubPem is user's public key
+	UserActivityPubPubPem = "activitypub.pub_pem"
+)
diff --git a/models/user/setting_test.go b/models/user/setting_test.go
new file mode 100644
index 0000000..0b05c54
--- /dev/null
+++ b/models/user/setting_test.go
@@ -0,0 +1,61 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSettings(t *testing.T) {
+	keyName := "test_user_setting"
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	newSetting := &user_model.Setting{UserID: 99, SettingKey: keyName, SettingValue: "Gitea User Setting Test"}
+
+	// create setting
+	err := user_model.SetUserSetting(db.DefaultContext, newSetting.UserID, newSetting.SettingKey, newSetting.SettingValue)
+	require.NoError(t, err)
+	// test about saving unchanged values
+	err = user_model.SetUserSetting(db.DefaultContext, newSetting.UserID, newSetting.SettingKey, newSetting.SettingValue)
+	require.NoError(t, err)
+
+	// get specific setting
+	settings, err := user_model.GetSettings(db.DefaultContext, 99, []string{keyName})
+	require.NoError(t, err)
+	assert.Len(t, settings, 1)
+	assert.EqualValues(t, newSetting.SettingValue, settings[keyName].SettingValue)
+
+	settingValue, err := user_model.GetUserSetting(db.DefaultContext, 99, keyName)
+	require.NoError(t, err)
+	assert.EqualValues(t, newSetting.SettingValue, settingValue)
+
+	settingValue, err = user_model.GetUserSetting(db.DefaultContext, 99, "no_such")
+	require.NoError(t, err)
+	assert.EqualValues(t, "", settingValue)
+
+	// updated setting
+	updatedSetting := &user_model.Setting{UserID: 99, SettingKey: keyName, SettingValue: "Updated"}
+	err = user_model.SetUserSetting(db.DefaultContext, updatedSetting.UserID, updatedSetting.SettingKey, updatedSetting.SettingValue)
+	require.NoError(t, err)
+
+	// get all settings
+	settings, err = user_model.GetUserAllSettings(db.DefaultContext, 99)
+	require.NoError(t, err)
+	assert.Len(t, settings, 1)
+	assert.EqualValues(t, updatedSetting.SettingValue, settings[updatedSetting.SettingKey].SettingValue)
+
+	// delete setting
+	err = user_model.DeleteUserSetting(db.DefaultContext, 99, keyName)
+	require.NoError(t, err)
+	settings, err = user_model.GetUserAllSettings(db.DefaultContext, 99)
+	require.NoError(t, err)
+	assert.Empty(t, settings)
+}
diff --git a/models/user/user.go b/models/user/user.go
new file mode 100644
index 0000000..3f12f8e
--- /dev/null
+++ b/models/user/user.go
@@ -0,0 +1,1365 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"crypto/subtle"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"net/mail"
+	"net/url"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"time"
+	"unicode"
+
+	_ "image/jpeg" // Needed for jpeg support
+
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/auth/openid"
+	"code.gitea.io/gitea/modules/auth/password/hash"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/modules/validation"
+
+	"golang.org/x/text/runes"
+	"golang.org/x/text/transform"
+	"golang.org/x/text/unicode/norm"
+	"xorm.io/builder"
+)
+
+// UserType defines the user type
+type UserType int //revive:disable-line:exported
+
+const (
+	// UserTypeIndividual defines an individual user
+	UserTypeIndividual UserType = iota // Historic reason to make it starts at 0.
+
+	// UserTypeOrganization defines an organization
+	UserTypeOrganization // 1
+
+	// UserTypeUserReserved reserves a (non-existing) user, i.e. to prevent a spam user from re-registering after being deleted, or to reserve the name until the user is actually created later on
+	UserTypeUserReserved // 2
+
+	// UserTypeOrganizationReserved reserves a (non-existing) organization, to be used in combination with UserTypeUserReserved
+	UserTypeOrganizationReserved // 3
+
+	// UserTypeBot defines a bot user
+	UserTypeBot // 4
+
+	// UserTypeRemoteUser defines a remote user for federated users
+	UserTypeRemoteUser // 5
+)
+
+const (
+	// EmailNotificationsEnabled indicates that the user would like to receive all email notifications except your own
+	EmailNotificationsEnabled = "enabled"
+	// EmailNotificationsOnMention indicates that the user would like to be notified via email when mentioned.
+	EmailNotificationsOnMention = "onmention"
+	// EmailNotificationsDisabled indicates that the user would not like to be notified via email.
+	EmailNotificationsDisabled = "disabled"
+	// EmailNotificationsAndYourOwn indicates that the user would like to receive all email notifications and your own
+	EmailNotificationsAndYourOwn = "andyourown"
+)
+
+// User represents the object of individual and member of organization.
+type User struct {
+	ID        int64  `xorm:"pk autoincr"`
+	LowerName string `xorm:"UNIQUE NOT NULL"`
+	Name      string `xorm:"UNIQUE NOT NULL"`
+	FullName  string
+	// Email is the primary email address (to be used for communication)
+	Email                        string `xorm:"NOT NULL"`
+	KeepEmailPrivate             bool
+	EmailNotificationsPreference string `xorm:"VARCHAR(20) NOT NULL DEFAULT 'enabled'"`
+	Passwd                       string `xorm:"NOT NULL"`
+	PasswdHashAlgo               string `xorm:"NOT NULL DEFAULT 'argon2'"`
+
+	// MustChangePassword is an attribute that determines if a user
+	// is to change their password after registration.
+	MustChangePassword bool `xorm:"NOT NULL DEFAULT false"`
+
+	LoginType   auth.Type
+	LoginSource int64 `xorm:"NOT NULL DEFAULT 0"`
+	LoginName   string
+	Type        UserType
+	Location    string
+	Website     string
+	Pronouns    string
+	Rands       string `xorm:"VARCHAR(32)"`
+	Salt        string `xorm:"VARCHAR(32)"`
+	Language    string `xorm:"VARCHAR(5)"`
+	Description string
+
+	CreatedUnix   timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix   timeutil.TimeStamp `xorm:"INDEX updated"`
+	LastLoginUnix timeutil.TimeStamp `xorm:"INDEX"`
+
+	// Remember visibility choice for convenience, true for private
+	LastRepoVisibility bool
+	// Maximum repository creation limit, -1 means use global default
+	MaxRepoCreation int `xorm:"NOT NULL DEFAULT -1"`
+
+	// IsActive true: primary email is activated, user can access Web UI and Git SSH.
+	// false: an inactive user can only log in Web UI for account operations (ex: activate the account by email), no other access.
+	IsActive bool `xorm:"INDEX"`
+	// the user is a Gitea admin, who can access all repositories and the admin pages.
+	IsAdmin bool
+	// true: the user is only allowed to see organizations/repositories that they has explicit rights to.
+	// (ex: in private Gitea instances user won't be allowed to see even organizations/repositories that are set as public)
+	IsRestricted bool `xorm:"NOT NULL DEFAULT false"`
+
+	AllowGitHook            bool
+	AllowImportLocal        bool // Allow migrate repository by local path
+	AllowCreateOrganization bool `xorm:"DEFAULT true"`
+
+	// true: the user is not allowed to log in Web UI. Git/SSH access could still be allowed (please refer to Git/SSH access related code/documents)
+	ProhibitLogin bool `xorm:"NOT NULL DEFAULT false"`
+
+	// Avatar
+	Avatar          string `xorm:"VARCHAR(2048) NOT NULL"`
+	AvatarEmail     string `xorm:"NOT NULL"`
+	UseCustomAvatar bool
+
+	// For federation
+	NormalizedFederatedURI string
+
+	// Counters
+	NumFollowers int
+	NumFollowing int `xorm:"NOT NULL DEFAULT 0"`
+	NumStars     int
+	NumRepos     int
+
+	// For organization
+	NumTeams                  int
+	NumMembers                int
+	Visibility                structs.VisibleType `xorm:"NOT NULL DEFAULT 0"`
+	RepoAdminChangeTeamAccess bool                `xorm:"NOT NULL DEFAULT false"`
+
+	// Preferences
+	DiffViewStyle       string `xorm:"NOT NULL DEFAULT ''"`
+	Theme               string `xorm:"NOT NULL DEFAULT ''"`
+	KeepActivityPrivate bool   `xorm:"NOT NULL DEFAULT false"`
+	EnableRepoUnitHints bool   `xorm:"NOT NULL DEFAULT true"`
+}
+
+func init() {
+	db.RegisterModel(new(User))
+}
+
+// SearchOrganizationsOptions options to filter organizations
+type SearchOrganizationsOptions struct {
+	db.ListOptions
+	All bool
+}
+
+func (u *User) LogString() string {
+	if u == nil {
+		return "<User nil>"
+	}
+	return fmt.Sprintf("<User %d:%s>", u.ID, u.Name)
+}
+
+// BeforeUpdate is invoked from XORM before updating this object.
+func (u *User) BeforeUpdate() {
+	if u.MaxRepoCreation < -1 {
+		u.MaxRepoCreation = -1
+	}
+
+	// Organization does not need email
+	u.Email = strings.ToLower(u.Email)
+	if !u.IsOrganization() {
+		if len(u.AvatarEmail) == 0 {
+			u.AvatarEmail = u.Email
+		}
+	}
+
+	u.LowerName = strings.ToLower(u.Name)
+	u.Location = base.TruncateString(u.Location, 255)
+	u.Website = base.TruncateString(u.Website, 255)
+	u.Description = base.TruncateString(u.Description, 255)
+}
+
+// AfterLoad is invoked from XORM after filling all the fields of this object.
+func (u *User) AfterLoad() {
+	if u.Theme == "" {
+		u.Theme = setting.UI.DefaultTheme
+	}
+}
+
+// SetLastLogin set time to last login
+func (u *User) SetLastLogin() {
+	u.LastLoginUnix = timeutil.TimeStampNow()
+}
+
+// GetPlaceholderEmail returns an noreply email
+func (u *User) GetPlaceholderEmail() string {
+	return fmt.Sprintf("%s@%s", u.LowerName, setting.Service.NoReplyAddress)
+}
+
+// GetEmail returns an noreply email, if the user has set to keep his
+// email address private, otherwise the primary email address.
+func (u *User) GetEmail() string {
+	if u.KeepEmailPrivate {
+		return u.GetPlaceholderEmail()
+	}
+	return u.Email
+}
+
+// GetAllUsers returns a slice of all individual users found in DB.
+func GetAllUsers(ctx context.Context) ([]*User, error) {
+	users := make([]*User, 0)
+	return users, db.GetEngine(ctx).OrderBy("id").In("type", UserTypeIndividual, UserTypeRemoteUser).Find(&users)
+}
+
+// GetAllAdmins returns a slice of all adminusers found in DB.
+func GetAllAdmins(ctx context.Context) ([]*User, error) {
+	users := make([]*User, 0)
+	return users, db.GetEngine(ctx).OrderBy("id").Where("type = ?", UserTypeIndividual).And("is_admin = ?", true).Find(&users)
+}
+
+// IsLocal returns true if user login type is LoginPlain.
+func (u *User) IsLocal() bool {
+	return u.LoginType <= auth.Plain
+}
+
+// IsOAuth2 returns true if user login type is LoginOAuth2.
+func (u *User) IsOAuth2() bool {
+	return u.LoginType == auth.OAuth2
+}
+
+// MaxCreationLimit returns the number of repositories a user is allowed to create
+func (u *User) MaxCreationLimit() int {
+	if u.MaxRepoCreation <= -1 {
+		return setting.Repository.MaxCreationLimit
+	}
+	return u.MaxRepoCreation
+}
+
+// CanCreateRepo returns if user login can create a repository
+// NOTE: functions calling this assume a failure due to repository count limit; if new checks are added, those functions should be revised
+func (u *User) CanCreateRepo() bool {
+	if u.IsAdmin {
+		return true
+	}
+	if u.MaxRepoCreation <= -1 {
+		if setting.Repository.MaxCreationLimit <= -1 {
+			return true
+		}
+		return u.NumRepos < setting.Repository.MaxCreationLimit
+	}
+	return u.NumRepos < u.MaxRepoCreation
+}
+
+// CanCreateOrganization returns true if user can create organisation.
+func (u *User) CanCreateOrganization() bool {
+	return u.IsAdmin || (u.AllowCreateOrganization && !setting.Admin.DisableRegularOrgCreation)
+}
+
+// CanEditGitHook returns true if user can edit Git hooks.
+func (u *User) CanEditGitHook() bool {
+	return !setting.DisableGitHooks && (u.IsAdmin || u.AllowGitHook)
+}
+
+// CanForkRepo returns if user login can fork a repository
+// It checks especially that the user can create repos, and potentially more
+func (u *User) CanForkRepo() bool {
+	if setting.Repository.AllowForkWithoutMaximumLimit {
+		return true
+	}
+	return u.CanCreateRepo()
+}
+
+// CanImportLocal returns true if user can migrate repository by local path.
+func (u *User) CanImportLocal() bool {
+	if !setting.ImportLocalPaths || u == nil {
+		return false
+	}
+	return u.IsAdmin || u.AllowImportLocal
+}
+
+// DashboardLink returns the user dashboard page link.
+func (u *User) DashboardLink() string {
+	if u.IsOrganization() {
+		return u.OrganisationLink() + "/dashboard"
+	}
+	return setting.AppSubURL + "/"
+}
+
+// HomeLink returns the user or organization home page link.
+func (u *User) HomeLink() string {
+	return setting.AppSubURL + "/" + url.PathEscape(u.Name)
+}
+
+// HTMLURL returns the user or organization's full link.
+func (u *User) HTMLURL() string {
+	return setting.AppURL + url.PathEscape(u.Name)
+}
+
+// APActorID returns the IRI to the api endpoint of the user
+func (u *User) APActorID() string {
+	return fmt.Sprintf("%vapi/v1/activitypub/user-id/%v", setting.AppURL, url.PathEscape(fmt.Sprintf("%v", u.ID)))
+}
+
+// OrganisationLink returns the organization sub page link.
+func (u *User) OrganisationLink() string {
+	return setting.AppSubURL + "/org/" + url.PathEscape(u.Name)
+}
+
+// GenerateEmailAuthorizationCode generates an activation code based for the user for the specified purpose.
+// The standard expiry is ActiveCodeLives minutes.
+func (u *User) GenerateEmailAuthorizationCode(ctx context.Context, purpose auth.AuthorizationPurpose) (string, error) {
+	lookup, validator, err := auth.GenerateAuthToken(ctx, u.ID, timeutil.TimeStampNow().Add(int64(setting.Service.ActiveCodeLives)*60), purpose)
+	if err != nil {
+		return "", err
+	}
+	return lookup + ":" + validator, nil
+}
+
+// GetUserFollowers returns range of user's followers.
+func GetUserFollowers(ctx context.Context, u, viewer *User, listOptions db.ListOptions) ([]*User, int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("`user`.*").
+		Join("LEFT", "follow", "`user`.id=follow.user_id").
+		Where("follow.follow_id=?", u.ID).
+		And("`user`.type=?", UserTypeIndividual).
+		And(isUserVisibleToViewerCond(viewer))
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+
+		users := make([]*User, 0, listOptions.PageSize)
+		count, err := sess.FindAndCount(&users)
+		return users, count, err
+	}
+
+	users := make([]*User, 0, 8)
+	count, err := sess.FindAndCount(&users)
+	return users, count, err
+}
+
+// GetUserFollowing returns range of user's following.
+func GetUserFollowing(ctx context.Context, u, viewer *User, listOptions db.ListOptions) ([]*User, int64, error) {
+	sess := db.GetEngine(ctx).
+		Select("`user`.*").
+		Join("LEFT", "follow", "`user`.id=follow.follow_id").
+		Where("follow.user_id=?", u.ID).
+		And("`user`.type IN (?, ?)", UserTypeIndividual, UserTypeOrganization).
+		And(isUserVisibleToViewerCond(viewer))
+
+	if listOptions.Page != 0 {
+		sess = db.SetSessionPagination(sess, &listOptions)
+
+		users := make([]*User, 0, listOptions.PageSize)
+		count, err := sess.FindAndCount(&users)
+		return users, count, err
+	}
+
+	users := make([]*User, 0, 8)
+	count, err := sess.FindAndCount(&users)
+	return users, count, err
+}
+
+// NewGitSig generates and returns the signature of given user.
+func (u *User) NewGitSig() *git.Signature {
+	return &git.Signature{
+		Name:  u.GitName(),
+		Email: u.GetEmail(),
+		When:  time.Now(),
+	}
+}
+
+// SetPassword hashes a password using the algorithm defined in the config value of PASSWORD_HASH_ALGO
+// change passwd, salt and passwd_hash_algo fields
+func (u *User) SetPassword(passwd string) (err error) {
+	// Invalidate all authentication tokens for this user.
+	if err := auth.DeleteAuthTokenByUser(db.DefaultContext, u.ID); err != nil {
+		return err
+	}
+
+	if u.Salt, err = GetUserSalt(); err != nil {
+		return err
+	}
+	if u.Passwd, err = hash.Parse(setting.PasswordHashAlgo).Hash(passwd, u.Salt); err != nil {
+		return err
+	}
+	u.PasswdHashAlgo = setting.PasswordHashAlgo
+
+	return nil
+}
+
+// ValidatePassword checks if the given password matches the one belonging to the user.
+func (u *User) ValidatePassword(passwd string) bool {
+	return hash.Parse(u.PasswdHashAlgo).VerifyPassword(passwd, u.Passwd, u.Salt)
+}
+
+// IsPasswordSet checks if the password is set or left empty
+func (u *User) IsPasswordSet() bool {
+	return len(u.Passwd) != 0
+}
+
+// IsOrganization returns true if user is actually a organization.
+func (u *User) IsOrganization() bool {
+	return u.Type == UserTypeOrganization
+}
+
+// IsIndividual returns true if user is actually a individual user.
+func (u *User) IsIndividual() bool {
+	return u.Type == UserTypeIndividual
+}
+
+func (u *User) IsUser() bool {
+	return u.Type == UserTypeIndividual || u.Type == UserTypeBot
+}
+
+// IsBot returns whether or not the user is of type bot
+func (u *User) IsBot() bool {
+	return u.Type == UserTypeBot
+}
+
+func (u *User) IsRemote() bool {
+	return u.Type == UserTypeRemoteUser
+}
+
+// DisplayName returns full name if it's not empty,
+// returns username otherwise.
+func (u *User) DisplayName() string {
+	trimmed := strings.TrimSpace(u.FullName)
+	if len(trimmed) > 0 {
+		return trimmed
+	}
+	return u.Name
+}
+
+var emailToReplacer = strings.NewReplacer(
+	"\n", "",
+	"\r", "",
+	"<", "",
+	">", "",
+	",", "",
+	":", "",
+	";", "",
+)
+
+// EmailTo returns a string suitable to be put into a e-mail `To:` header.
+func (u *User) EmailTo(overrideMail ...string) string {
+	sanitizedDisplayName := emailToReplacer.Replace(u.DisplayName())
+
+	email := u.Email
+	if len(overrideMail) > 0 {
+		email = overrideMail[0]
+	}
+
+	// should be an edge case but nice to have
+	if sanitizedDisplayName == email {
+		return email
+	}
+
+	address, err := mail.ParseAddress(fmt.Sprintf("%s <%s>", sanitizedDisplayName, email))
+	if err != nil {
+		return email
+	}
+
+	return address.String()
+}
+
+// GetDisplayName returns full name if it's not empty and DEFAULT_SHOW_FULL_NAME is set,
+// returns username otherwise.
+func (u *User) GetDisplayName() string {
+	if setting.UI.DefaultShowFullName {
+		trimmed := strings.TrimSpace(u.FullName)
+		if len(trimmed) > 0 {
+			return trimmed
+		}
+	}
+	return u.Name
+}
+
+// GetCompleteName returns the full name and username in the form of
+// "Full Name (username)" if full name is not empty, otherwise it returns
+// "username".
+func (u *User) GetCompleteName() string {
+	trimmedFullName := strings.TrimSpace(u.FullName)
+	if len(trimmedFullName) > 0 {
+		return fmt.Sprintf("%s (%s)", trimmedFullName, u.Name)
+	}
+	return u.Name
+}
+
+func gitSafeName(name string) string {
+	return strings.TrimSpace(strings.NewReplacer("\n", "", "<", "", ">", "").Replace(name))
+}
+
+// GitName returns a git safe name
+func (u *User) GitName() string {
+	gitName := gitSafeName(u.FullName)
+	if len(gitName) > 0 {
+		return gitName
+	}
+	// Although u.Name should be safe if created in our system
+	// LDAP users may have bad names
+	gitName = gitSafeName(u.Name)
+	if len(gitName) > 0 {
+		return gitName
+	}
+	// Totally pathological name so it's got to be:
+	return fmt.Sprintf("user-%d", u.ID)
+}
+
+// ShortName ellipses username to length
+func (u *User) ShortName(length int) string {
+	if setting.UI.DefaultShowFullName && len(u.FullName) > 0 {
+		return base.EllipsisString(u.FullName, length)
+	}
+	return base.EllipsisString(u.Name, length)
+}
+
+// IsMailable checks if a user is eligible
+// to receive emails.
+func (u *User) IsMailable() bool {
+	return u.IsActive
+}
+
+// IsUserExist checks if given user name exist,
+// the user name should be noncased unique.
+// If uid is presented, then check will rule out that one,
+// it is used when update a user name in settings page.
+func IsUserExist(ctx context.Context, uid int64, name string) (bool, error) {
+	if len(name) == 0 {
+		return false, nil
+	}
+	return db.GetEngine(ctx).
+		Where("id!=?", uid).
+		Get(&User{LowerName: strings.ToLower(name)})
+}
+
+// Note: As of the beginning of 2022, it is recommended to use at least
+// 64 bits of salt, but NIST is already recommending to use to 128 bits.
+// (16 bytes = 16 * 8 = 128 bits)
+const SaltByteLength = 16
+
+// GetUserSalt returns a random user salt token.
+func GetUserSalt() (string, error) {
+	rBytes, err := util.CryptoRandomBytes(SaltByteLength)
+	if err != nil {
+		return "", err
+	}
+	// Returns a 32 bytes long string.
+	return hex.EncodeToString(rBytes), nil
+}
+
+// Note: The set of characters here can safely expand without a breaking change,
+// but characters removed from this set can cause user account linking to break
+var (
+	customCharsReplacement    = strings.NewReplacer("Æ", "AE")
+	removeCharsRE             = regexp.MustCompile(`['´\x60]`)
+	removeDiacriticsTransform = transform.Chain(norm.NFD, runes.Remove(runes.In(unicode.Mn)), norm.NFC)
+	replaceCharsHyphenRE      = regexp.MustCompile(`[\s~+]`)
+)
+
+// normalizeUserName returns a string with single-quotes and diacritics
+// removed, and any other non-supported username characters replaced with
+// a `-` character
+func NormalizeUserName(s string) (string, error) {
+	strDiacriticsRemoved, n, err := transform.String(removeDiacriticsTransform, customCharsReplacement.Replace(s))
+	if err != nil {
+		return "", fmt.Errorf("Failed to normalize character `%v` in provided username `%v`", s[n], s)
+	}
+	return replaceCharsHyphenRE.ReplaceAllLiteralString(removeCharsRE.ReplaceAllLiteralString(strDiacriticsRemoved, ""), "-"), nil
+}
+
+var (
+	reservedUsernames = []string{
+		".",
+		"..",
+		".well-known",
+		"admin",
+		"api",
+		"assets",
+		"attachments",
+		"avatar",
+		"avatars",
+		"captcha",
+		"commits",
+		"debug",
+		"devtest",
+		"error",
+		"explore",
+		"favicon.ico",
+		"ghost",
+		"issues",
+		"login",
+		"manifest.json",
+		"metrics",
+		"milestones",
+		"new",
+		"notifications",
+		"org",
+		"pulls",
+		"raw",
+		"repo",
+		"repo-avatars",
+		"robots.txt",
+		"search",
+		"serviceworker.js",
+		"ssh_info",
+		"swagger.v1.json",
+		"user",
+		"v2",
+		"gitea-actions",
+		"forgejo-actions",
+	}
+
+	// DON'T ADD ANY NEW STUFF, WE SOLVE THIS WITH `/user/{obj}` PATHS!
+	reservedUserPatterns = []string{"*.keys", "*.gpg", "*.rss", "*.atom", "*.png"}
+)
+
+// IsUsableUsername returns an error when a username is reserved
+func IsUsableUsername(name string) error {
+	// Validate username make sure it satisfies requirement.
+	if !validation.IsValidUsername(name) {
+		// Note: usually this error is normally caught up earlier in the UI
+		return db.ErrNameCharsNotAllowed{Name: name}
+	}
+	return db.IsUsableName(reservedUsernames, reservedUserPatterns, name)
+}
+
+// CreateUserOverwriteOptions are an optional options who overwrite system defaults on user creation
+type CreateUserOverwriteOptions struct {
+	KeepEmailPrivate             optional.Option[bool]
+	Visibility                   *structs.VisibleType
+	AllowCreateOrganization      optional.Option[bool]
+	EmailNotificationsPreference *string
+	MaxRepoCreation              *int
+	Theme                        *string
+	IsRestricted                 optional.Option[bool]
+	IsActive                     optional.Option[bool]
+}
+
+// CreateUser creates record of a new user.
+func CreateUser(ctx context.Context, u *User, overwriteDefault ...*CreateUserOverwriteOptions) (err error) {
+	return createUser(ctx, u, false, overwriteDefault...)
+}
+
+// AdminCreateUser is used by admins to manually create users
+func AdminCreateUser(ctx context.Context, u *User, overwriteDefault ...*CreateUserOverwriteOptions) (err error) {
+	return createUser(ctx, u, true, overwriteDefault...)
+}
+
+// createUser creates record of a new user.
+func createUser(ctx context.Context, u *User, createdByAdmin bool, overwriteDefault ...*CreateUserOverwriteOptions) (err error) {
+	if err = IsUsableUsername(u.Name); err != nil {
+		return err
+	}
+
+	// set system defaults
+	u.KeepEmailPrivate = setting.Service.DefaultKeepEmailPrivate
+	u.Visibility = setting.Service.DefaultUserVisibilityMode
+	u.AllowCreateOrganization = setting.Service.DefaultAllowCreateOrganization && !setting.Admin.DisableRegularOrgCreation
+	u.EmailNotificationsPreference = setting.Admin.DefaultEmailNotification
+	u.MaxRepoCreation = -1
+	u.Theme = setting.UI.DefaultTheme
+	u.IsRestricted = setting.Service.DefaultUserIsRestricted
+	u.IsActive = !(setting.Service.RegisterEmailConfirm || setting.Service.RegisterManualConfirm)
+
+	// Ensure consistency of the dates.
+	if u.UpdatedUnix < u.CreatedUnix {
+		u.UpdatedUnix = u.CreatedUnix
+	}
+
+	// overwrite defaults if set
+	if len(overwriteDefault) != 0 && overwriteDefault[0] != nil {
+		overwrite := overwriteDefault[0]
+		if overwrite.KeepEmailPrivate.Has() {
+			u.KeepEmailPrivate = overwrite.KeepEmailPrivate.Value()
+		}
+		if overwrite.Visibility != nil {
+			u.Visibility = *overwrite.Visibility
+		}
+		if overwrite.AllowCreateOrganization.Has() {
+			u.AllowCreateOrganization = overwrite.AllowCreateOrganization.Value()
+		}
+		if overwrite.EmailNotificationsPreference != nil {
+			u.EmailNotificationsPreference = *overwrite.EmailNotificationsPreference
+		}
+		if overwrite.MaxRepoCreation != nil {
+			u.MaxRepoCreation = *overwrite.MaxRepoCreation
+		}
+		if overwrite.Theme != nil {
+			u.Theme = *overwrite.Theme
+		}
+		if overwrite.IsRestricted.Has() {
+			u.IsRestricted = overwrite.IsRestricted.Value()
+		}
+		if overwrite.IsActive.Has() {
+			u.IsActive = overwrite.IsActive.Value()
+		}
+	}
+
+	// validate data
+	if err := ValidateUser(u); err != nil {
+		return err
+	}
+
+	if createdByAdmin {
+		if err := ValidateEmailForAdmin(u.Email); err != nil {
+			return err
+		}
+	} else {
+		if err := ValidateEmail(u.Email); err != nil {
+			return err
+		}
+	}
+
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	isExist, err := IsUserExist(ctx, 0, u.Name)
+	if err != nil {
+		return err
+	} else if isExist {
+		return ErrUserAlreadyExist{u.Name}
+	}
+
+	isExist, err = IsEmailUsed(ctx, u.Email)
+	if err != nil {
+		return err
+	} else if isExist {
+		return ErrEmailAlreadyUsed{
+			Email: u.Email,
+		}
+	}
+
+	// prepare for database
+
+	u.LowerName = strings.ToLower(u.Name)
+	u.AvatarEmail = u.Email
+	if u.Rands, err = GetUserSalt(); err != nil {
+		return err
+	}
+	if u.Passwd != "" {
+		if err = u.SetPassword(u.Passwd); err != nil {
+			return err
+		}
+	} else {
+		u.Salt = ""
+		u.PasswdHashAlgo = ""
+	}
+
+	// save changes to database
+
+	if err = DeleteUserRedirect(ctx, u.Name); err != nil {
+		return err
+	}
+
+	if u.CreatedUnix == 0 {
+		// Caller expects auto-time for creation & update timestamps.
+		err = db.Insert(ctx, u)
+	} else {
+		// Caller sets the timestamps themselves. They are responsible for ensuring
+		// both `CreatedUnix` and `UpdatedUnix` are set appropriately.
+		_, err = db.GetEngine(ctx).NoAutoTime().Insert(u)
+	}
+	if err != nil {
+		return err
+	}
+
+	// insert email address
+	if err := db.Insert(ctx, &EmailAddress{
+		UID:         u.ID,
+		Email:       u.Email,
+		LowerEmail:  strings.ToLower(u.Email),
+		IsActivated: u.IsActive,
+		IsPrimary:   true,
+	}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// IsLastAdminUser check whether user is the last admin
+func IsLastAdminUser(ctx context.Context, user *User) bool {
+	if user.IsAdmin && CountUsers(ctx, &CountUserFilter{IsAdmin: optional.Some(true)}) <= 1 {
+		return true
+	}
+	return false
+}
+
+// CountUserFilter represent optional filters for CountUsers
+type CountUserFilter struct {
+	LastLoginSince *int64
+	IsAdmin        optional.Option[bool]
+}
+
+// CountUsers returns number of users.
+func CountUsers(ctx context.Context, opts *CountUserFilter) int64 {
+	return countUsers(ctx, opts)
+}
+
+func countUsers(ctx context.Context, opts *CountUserFilter) int64 {
+	sess := db.GetEngine(ctx)
+	cond := builder.NewCond()
+	cond = cond.And(builder.Eq{"type": UserTypeIndividual})
+
+	if opts != nil {
+		if opts.LastLoginSince != nil {
+			cond = cond.And(builder.Gte{"last_login_unix": *opts.LastLoginSince})
+		}
+
+		if opts.IsAdmin.Has() {
+			cond = cond.And(builder.Eq{"is_admin": opts.IsAdmin.Value()})
+		}
+	}
+
+	count, err := sess.Where(cond).Count(new(User))
+	if err != nil {
+		log.Error("user.countUsers: %v", err)
+	}
+
+	return count
+}
+
+// VerifyUserActiveCode verifies that the code is valid for the given purpose for this user.
+// If delete is specified, the token will be deleted.
+func VerifyUserAuthorizationToken(ctx context.Context, code string, purpose auth.AuthorizationPurpose, delete bool) (*User, error) {
+	lookupKey, validator, found := strings.Cut(code, ":")
+	if !found {
+		return nil, nil
+	}
+
+	authToken, err := auth.FindAuthToken(ctx, lookupKey, purpose)
+	if err != nil {
+		if errors.Is(err, util.ErrNotExist) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	if authToken.IsExpired() {
+		return nil, auth.DeleteAuthToken(ctx, authToken)
+	}
+
+	rawValidator, err := hex.DecodeString(validator)
+	if err != nil {
+		return nil, err
+	}
+
+	if subtle.ConstantTimeCompare([]byte(authToken.HashedValidator), []byte(auth.HashValidator(rawValidator))) == 0 {
+		return nil, errors.New("validator doesn't match")
+	}
+
+	u, err := GetUserByID(ctx, authToken.UID)
+	if err != nil {
+		if IsErrUserNotExist(err) {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	if delete {
+		if err := auth.DeleteAuthToken(ctx, authToken); err != nil {
+			return nil, err
+		}
+	}
+
+	return u, nil
+}
+
+// ValidateUser check if user is valid to insert / update into database
+func ValidateUser(u *User, cols ...string) error {
+	if len(cols) == 0 || util.SliceContainsString(cols, "visibility", true) {
+		if !setting.Service.AllowedUserVisibilityModesSlice.IsAllowedVisibility(u.Visibility) && !u.IsOrganization() {
+			return fmt.Errorf("visibility Mode not allowed: %s", u.Visibility.String())
+		}
+	}
+
+	return nil
+}
+
+func (u User) Validate() []string {
+	var result []string
+	if err := ValidateUser(&u); err != nil {
+		result = append(result, err.Error())
+	}
+	if err := ValidateEmail(u.Email); err != nil {
+		result = append(result, err.Error())
+	}
+	return result
+}
+
+// UpdateUserCols update user according special columns
+func UpdateUserCols(ctx context.Context, u *User, cols ...string) error {
+	if err := ValidateUser(u, cols...); err != nil {
+		return err
+	}
+
+	_, err := db.GetEngine(ctx).ID(u.ID).Cols(cols...).Update(u)
+	return err
+}
+
+// GetInactiveUsers gets all inactive users
+func GetInactiveUsers(ctx context.Context, olderThan time.Duration) ([]*User, error) {
+	cond := builder.And(
+		builder.Eq{"is_active": false},
+		builder.Or( // only plain user
+			builder.Eq{"`type`": UserTypeIndividual},
+			builder.Eq{"`type`": UserTypeUserReserved},
+		),
+	)
+
+	if olderThan > 0 {
+		cond = cond.And(builder.Lt{"created_unix": time.Now().Add(-olderThan).Unix()})
+	}
+
+	users := make([]*User, 0, 10)
+	return users, db.GetEngine(ctx).
+		Where(cond).
+		Find(&users)
+}
+
+// UserPath returns the path absolute path of user repositories.
+func UserPath(userName string) string { //revive:disable-line:exported
+	return filepath.Join(setting.RepoRootPath, strings.ToLower(userName))
+}
+
+// GetUserByID returns the user object by given ID if exists.
+func GetUserByID(ctx context.Context, id int64) (*User, error) {
+	u := new(User)
+	has, err := db.GetEngine(ctx).ID(id).Get(u)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrUserNotExist{UID: id}
+	}
+	return u, nil
+}
+
+// GetUserByIDs returns the user objects by given IDs if exists.
+func GetUserByIDs(ctx context.Context, ids []int64) ([]*User, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+
+	users := make([]*User, 0, len(ids))
+	err := db.GetEngine(ctx).In("id", ids).
+		Table("user").
+		Find(&users)
+	return users, err
+}
+
+func IsValidUserID(id int64) bool {
+	return id > 0 || id == GhostUserID || id == ActionsUserID
+}
+
+func GetUserFromMap(id int64, idMap map[int64]*User) (int64, *User) {
+	if user, ok := idMap[id]; ok {
+		return id, user
+	}
+	if id == ActionsUserID {
+		return ActionsUserID, NewActionsUser()
+	}
+	return GhostUserID, NewGhostUser()
+}
+
+// GetPossibleUserByID returns the user if id > 0 or return system usrs if id < 0
+func GetPossibleUserByID(ctx context.Context, id int64) (*User, error) {
+	switch id {
+	case GhostUserID:
+		return NewGhostUser(), nil
+	case ActionsUserID:
+		return NewActionsUser(), nil
+	case 0:
+		return nil, ErrUserNotExist{}
+	default:
+		return GetUserByID(ctx, id)
+	}
+}
+
+// GetPossibleUserByIDs returns the users if id > 0 or return system users if id < 0
+func GetPossibleUserByIDs(ctx context.Context, ids []int64) ([]*User, error) {
+	uniqueIDs := container.SetOf(ids...)
+	users := make([]*User, 0, len(ids))
+	_ = uniqueIDs.Remove(0)
+	if uniqueIDs.Remove(GhostUserID) {
+		users = append(users, NewGhostUser())
+	}
+	if uniqueIDs.Remove(ActionsUserID) {
+		users = append(users, NewActionsUser())
+	}
+	res, err := GetUserByIDs(ctx, uniqueIDs.Values())
+	if err != nil {
+		return nil, err
+	}
+	users = append(users, res...)
+	return users, nil
+}
+
+// GetUserByNameCtx returns user by given name.
+func GetUserByName(ctx context.Context, name string) (*User, error) {
+	if len(name) == 0 {
+		return nil, ErrUserNotExist{Name: name}
+	}
+	// adding Type: UserTypeIndividual is a noop because it is zero and discarded
+	u := &User{LowerName: strings.ToLower(name)}
+	has, err := db.GetEngine(ctx).Get(u)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrUserNotExist{Name: name}
+	}
+	return u, nil
+}
+
+// GetUserEmailsByNames returns a list of e-mails corresponds to names of users
+// that have their email notifications set to enabled or onmention.
+func GetUserEmailsByNames(ctx context.Context, names []string) []string {
+	mails := make([]string, 0, len(names))
+	for _, name := range names {
+		u, err := GetUserByName(ctx, name)
+		if err != nil {
+			continue
+		}
+		if u.IsMailable() && u.EmailNotificationsPreference != EmailNotificationsDisabled {
+			mails = append(mails, u.Email)
+		}
+	}
+	return mails
+}
+
+// GetMaileableUsersByIDs gets users from ids, but only if they can receive mails
+func GetMaileableUsersByIDs(ctx context.Context, ids []int64, isMention bool) ([]*User, error) {
+	if len(ids) == 0 {
+		return nil, nil
+	}
+	ous := make([]*User, 0, len(ids))
+
+	if isMention {
+		return ous, db.GetEngine(ctx).
+			In("id", ids).
+			Where("`type` = ?", UserTypeIndividual).
+			And("`prohibit_login` = ?", false).
+			And("`is_active` = ?", true).
+			In("`email_notifications_preference`", EmailNotificationsEnabled, EmailNotificationsOnMention, EmailNotificationsAndYourOwn).
+			Find(&ous)
+	}
+
+	return ous, db.GetEngine(ctx).
+		In("id", ids).
+		Where("`type` = ?", UserTypeIndividual).
+		And("`prohibit_login` = ?", false).
+		And("`is_active` = ?", true).
+		In("`email_notifications_preference`", EmailNotificationsEnabled, EmailNotificationsAndYourOwn).
+		Find(&ous)
+}
+
+// GetUserNamesByIDs returns usernames for all resolved users from a list of Ids.
+func GetUserNamesByIDs(ctx context.Context, ids []int64) ([]string, error) {
+	unames := make([]string, 0, len(ids))
+	err := db.GetEngine(ctx).In("id", ids).
+		Table("user").
+		Asc("name").
+		Cols("name").
+		Find(&unames)
+	return unames, err
+}
+
+// GetUserNameByID returns username for the id
+func GetUserNameByID(ctx context.Context, id int64) (string, error) {
+	var name string
+	has, err := db.GetEngine(ctx).Table("user").Where("id = ?", id).Cols("name").Get(&name)
+	if err != nil {
+		return "", err
+	}
+	if has {
+		return name, nil
+	}
+	return "", nil
+}
+
+// GetUserIDsByNames returns a slice of ids corresponds to names.
+func GetUserIDsByNames(ctx context.Context, names []string, ignoreNonExistent bool) ([]int64, error) {
+	ids := make([]int64, 0, len(names))
+	for _, name := range names {
+		u, err := GetUserByName(ctx, name)
+		if err != nil {
+			if ignoreNonExistent {
+				continue
+			}
+			return nil, err
+		}
+		ids = append(ids, u.ID)
+	}
+	return ids, nil
+}
+
+// GetUsersBySource returns a list of Users for a login source
+func GetUsersBySource(ctx context.Context, s *auth.Source) ([]*User, error) {
+	var users []*User
+	err := db.GetEngine(ctx).Where("login_type = ? AND login_source = ?", s.Type, s.ID).Find(&users)
+	return users, err
+}
+
+// UserCommit represents a commit with validation of user.
+type UserCommit struct { //revive:disable-line:exported
+	User *User
+	*git.Commit
+}
+
+// ValidateCommitWithEmail check if author's e-mail of commit is corresponding to a user.
+func ValidateCommitWithEmail(ctx context.Context, c *git.Commit) *User {
+	if c.Author == nil {
+		return nil
+	}
+	u, err := GetUserByEmail(ctx, c.Author.Email)
+	if err != nil {
+		return nil
+	}
+	return u
+}
+
+// ValidateCommitsWithEmails checks if authors' e-mails of commits are corresponding to users.
+func ValidateCommitsWithEmails(ctx context.Context, oldCommits []*git.Commit) []*UserCommit {
+	var (
+		emails     = make(map[string]*User)
+		newCommits = make([]*UserCommit, 0, len(oldCommits))
+	)
+	for _, c := range oldCommits {
+		var u *User
+		if c.Author != nil {
+			if v, ok := emails[c.Author.Email]; !ok {
+				u, _ = GetUserByEmail(ctx, c.Author.Email)
+				emails[c.Author.Email] = u
+			} else {
+				u = v
+			}
+		}
+
+		newCommits = append(newCommits, &UserCommit{
+			User:   u,
+			Commit: c,
+		})
+	}
+	return newCommits
+}
+
+// GetUserByEmail returns the user object by given e-mail if exists.
+func GetUserByEmail(ctx context.Context, email string) (*User, error) {
+	if len(email) == 0 {
+		return nil, ErrUserNotExist{Name: email}
+	}
+
+	email = strings.ToLower(email)
+	// Otherwise, check in alternative list for activated email addresses
+	emailAddress := &EmailAddress{LowerEmail: email, IsActivated: true}
+	has, err := db.GetEngine(ctx).Get(emailAddress)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return GetUserByID(ctx, emailAddress.UID)
+	}
+
+	// Finally, if email address is the protected email address:
+	if strings.HasSuffix(email, fmt.Sprintf("@%s", setting.Service.NoReplyAddress)) {
+		username := strings.TrimSuffix(email, fmt.Sprintf("@%s", setting.Service.NoReplyAddress))
+		user := &User{}
+		has, err := db.GetEngine(ctx).Where("lower_name=?", username).Get(user)
+		if err != nil {
+			return nil, err
+		}
+		if has {
+			return user, nil
+		}
+	}
+
+	return nil, ErrUserNotExist{Name: email}
+}
+
+// GetUser checks if a user already exists
+func GetUser(ctx context.Context, user *User) (bool, error) {
+	return db.GetEngine(ctx).Get(user)
+}
+
+// GetUserByOpenID returns the user object by given OpenID if exists.
+func GetUserByOpenID(ctx context.Context, uri string) (*User, error) {
+	if len(uri) == 0 {
+		return nil, ErrUserNotExist{Name: uri}
+	}
+
+	uri, err := openid.Normalize(uri)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Trace("Normalized OpenID URI: " + uri)
+
+	// Otherwise, check in openid table
+	oid := &UserOpenID{}
+	has, err := db.GetEngine(ctx).Where("uri=?", uri).Get(oid)
+	if err != nil {
+		return nil, err
+	}
+	if has {
+		return GetUserByID(ctx, oid.UID)
+	}
+
+	return nil, ErrUserNotExist{Name: uri}
+}
+
+// GetAdminUser returns the first administrator
+func GetAdminUser(ctx context.Context) (*User, error) {
+	var admin User
+	has, err := db.GetEngine(ctx).
+		Where("is_admin=?", true).
+		Asc("id"). // Reliably get the admin with the lowest ID.
+		Get(&admin)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrUserNotExist{}
+	}
+
+	return &admin, nil
+}
+
+func isUserVisibleToViewerCond(viewer *User) builder.Cond {
+	if viewer != nil && viewer.IsAdmin {
+		return builder.NewCond()
+	}
+
+	if viewer == nil || viewer.IsRestricted {
+		return builder.Eq{
+			"`user`.visibility": structs.VisibleTypePublic,
+		}
+	}
+
+	return builder.Neq{
+		"`user`.visibility": structs.VisibleTypePrivate,
+	}.Or(
+		// viewer self
+		builder.Eq{"`user`.id": viewer.ID},
+		// viewer's following
+		builder.In("`user`.id",
+			builder.
+				Select("`follow`.user_id").
+				From("follow").
+				Where(builder.Eq{"`follow`.follow_id": viewer.ID})),
+		// viewer's org user
+		builder.In("`user`.id",
+			builder.
+				Select("`team_user`.uid").
+				From("team_user").
+				Join("INNER", "`team_user` AS t2", "`team_user`.org_id = `t2`.org_id").
+				Where(builder.Eq{"`t2`.uid": viewer.ID})),
+		// viewer's org
+		builder.In("`user`.id",
+			builder.
+				Select("`team_user`.org_id").
+				From("team_user").
+				Where(builder.Eq{"`team_user`.uid": viewer.ID})))
+}
+
+// IsUserVisibleToViewer check if viewer is able to see user profile
+func IsUserVisibleToViewer(ctx context.Context, u, viewer *User) bool {
+	if viewer != nil && (viewer.IsAdmin || viewer.ID == u.ID) {
+		return true
+	}
+
+	switch u.Visibility {
+	case structs.VisibleTypePublic:
+		return true
+	case structs.VisibleTypeLimited:
+		if viewer == nil || viewer.IsRestricted {
+			return false
+		}
+		return true
+	case structs.VisibleTypePrivate:
+		if viewer == nil || viewer.IsRestricted {
+			return false
+		}
+
+		// If they follow - they see each over
+		follower := IsFollowing(ctx, u.ID, viewer.ID)
+		if follower {
+			return true
+		}
+
+		// Now we need to check if they in some organization together
+		count, err := db.GetEngine(ctx).Table("team_user").
+			Where(
+				builder.And(
+					builder.Eq{"uid": viewer.ID},
+					builder.Or(
+						builder.Eq{"org_id": u.ID},
+						builder.In("org_id",
+							builder.Select("org_id").
+								From("team_user", "t2").
+								Where(builder.Eq{"uid": u.ID}))))).
+			Count()
+		if err != nil {
+			return false
+		}
+
+		if count == 0 {
+			// No common organization
+			return false
+		}
+
+		// they are in an organization together
+		return true
+	}
+	return false
+}
+
+// CountWrongUserType count OrgUser who have wrong type
+func CountWrongUserType(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.Eq{"type": 0}.And(builder.Neq{"num_teams": 0})).Count(new(User))
+}
+
+// FixWrongUserType fix OrgUser who have wrong type
+func FixWrongUserType(ctx context.Context) (int64, error) {
+	return db.GetEngine(ctx).Where(builder.Eq{"type": 0}.And(builder.Neq{"num_teams": 0})).Cols("type").NoAutoTime().Update(&User{Type: 1})
+}
+
+func GetOrderByName() string {
+	if setting.UI.DefaultShowFullName {
+		return "full_name, name"
+	}
+	return "name"
+}
+
+// IsFeatureDisabledWithLoginType checks if a user feature is disabled, taking into account the login type of the
+// user if applicable
+func IsFeatureDisabledWithLoginType(user *User, feature string) bool {
+	// NOTE: in the long run it may be better to check the ExternalLoginUser table rather than user.LoginType
+	return (user != nil && user.LoginType > auth.Plain && setting.Admin.ExternalUserDisableFeatures.Contains(feature)) ||
+		setting.Admin.UserDisabledFeatures.Contains(feature)
+}
+
+// DisabledFeaturesWithLoginType returns the set of user features disabled, taking into account the login type
+// of the user if applicable
+func DisabledFeaturesWithLoginType(user *User) *container.Set[string] {
+	// NOTE: in the long run it may be better to check the ExternalLoginUser table rather than user.LoginType
+	if user != nil && user.LoginType > auth.Plain {
+		return &setting.Admin.ExternalUserDisableFeatures
+	}
+	return &setting.Admin.UserDisabledFeatures
+}
diff --git a/models/user/user_repository.go b/models/user/user_repository.go
new file mode 100644
index 0000000..c06441b
--- /dev/null
+++ b/models/user/user_repository.go
@@ -0,0 +1,83 @@
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/validation"
+)
+
+func init() {
+	db.RegisterModel(new(FederatedUser))
+}
+
+func CreateFederatedUser(ctx context.Context, user *User, federatedUser *FederatedUser) error {
+	if res, err := validation.IsValid(user); !res {
+		return err
+	}
+	overwrite := CreateUserOverwriteOptions{
+		IsActive:     optional.Some(false),
+		IsRestricted: optional.Some(false),
+	}
+
+	// Begin transaction
+	ctx, committer, err := db.TxContext((ctx))
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if err := CreateUser(ctx, user, &overwrite); err != nil {
+		return err
+	}
+
+	federatedUser.UserID = user.ID
+	if res, err := validation.IsValid(federatedUser); !res {
+		return err
+	}
+
+	_, err = db.GetEngine(ctx).Insert(federatedUser)
+	if err != nil {
+		return err
+	}
+
+	// Commit transaction
+	return committer.Commit()
+}
+
+func FindFederatedUser(ctx context.Context, externalID string,
+	federationHostID int64,
+) (*User, *FederatedUser, error) {
+	federatedUser := new(FederatedUser)
+	user := new(User)
+	has, err := db.GetEngine(ctx).Where("external_id=? and federation_host_id=?", externalID, federationHostID).Get(federatedUser)
+	if err != nil {
+		return nil, nil, err
+	} else if !has {
+		return nil, nil, nil
+	}
+	has, err = db.GetEngine(ctx).ID(federatedUser.UserID).Get(user)
+	if err != nil {
+		return nil, nil, err
+	} else if !has {
+		return nil, nil, fmt.Errorf("User %v for federated user is missing", federatedUser.UserID)
+	}
+
+	if res, err := validation.IsValid(*user); !res {
+		return nil, nil, err
+	}
+	if res, err := validation.IsValid(*federatedUser); !res {
+		return nil, nil, err
+	}
+	return user, federatedUser, nil
+}
+
+func DeleteFederatedUser(ctx context.Context, userID int64) error {
+	_, err := db.GetEngine(ctx).Delete(&FederatedUser{UserID: userID})
+	return err
+}
diff --git a/models/user/user_system.go b/models/user/user_system.go
new file mode 100644
index 0000000..ba9a213
--- /dev/null
+++ b/models/user/user_system.go
@@ -0,0 +1,97 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"net/url"
+	"strings"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+)
+
+const (
+	GhostUserID        = -1
+	GhostUserName      = "Ghost"
+	GhostUserLowerName = "ghost"
+)
+
+// NewGhostUser creates and returns a fake user for someone has deleted their account.
+func NewGhostUser() *User {
+	return &User{
+		ID:        GhostUserID,
+		Name:      GhostUserName,
+		LowerName: GhostUserLowerName,
+	}
+}
+
+// IsGhost check if user is fake user for a deleted account
+func (u *User) IsGhost() bool {
+	if u == nil {
+		return false
+	}
+	return u.ID == GhostUserID && u.Name == GhostUserName
+}
+
+// NewReplaceUser creates and returns a fake user for external user
+func NewReplaceUser(name string) *User {
+	return &User{
+		ID:        0,
+		Name:      name,
+		LowerName: strings.ToLower(name),
+	}
+}
+
+const (
+	ActionsUserID   = -2
+	ActionsUserName = "forgejo-actions"
+	ActionsFullName = "Forgejo Actions"
+	ActionsEmail    = "noreply@forgejo.org"
+)
+
+// NewActionsUser creates and returns a fake user for running the actions.
+func NewActionsUser() *User {
+	return &User{
+		ID:                      ActionsUserID,
+		Name:                    ActionsUserName,
+		LowerName:               ActionsUserName,
+		IsActive:                true,
+		FullName:                ActionsFullName,
+		Email:                   ActionsEmail,
+		KeepEmailPrivate:        true,
+		LoginName:               ActionsUserName,
+		Type:                    UserTypeIndividual,
+		AllowCreateOrganization: true,
+		Visibility:              structs.VisibleTypePublic,
+	}
+}
+
+func (u *User) IsActions() bool {
+	return u != nil && u.ID == ActionsUserID
+}
+
+const (
+	APActorUserID   = -3
+	APActorUserName = "actor"
+	APActorEmail    = "noreply@forgejo.org"
+)
+
+func NewAPActorUser() *User {
+	return &User{
+		ID:               APActorUserID,
+		Name:             APActorUserName,
+		LowerName:        APActorUserName,
+		IsActive:         true,
+		Email:            APActorEmail,
+		KeepEmailPrivate: true,
+		LoginName:        APActorUserName,
+		Type:             UserTypeIndividual,
+		Visibility:       structs.VisibleTypePublic,
+	}
+}
+
+func APActorUserAPActorID() string {
+	path, _ := url.JoinPath(setting.AppURL, "/api/v1/activitypub/actor")
+	return path
+}
diff --git a/models/user/user_test.go b/models/user/user_test.go
new file mode 100644
index 0000000..f0b7e16
--- /dev/null
+++ b/models/user/user_test.go
@@ -0,0 +1,781 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Copyright 2024 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user_test
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"strings"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/auth/password/hash"
+	"code.gitea.io/gitea/modules/container"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOAuth2Application_LoadUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	app := unittest.AssertExistsAndLoadBean(t, &auth.OAuth2Application{ID: 1})
+	user, err := user_model.GetUserByID(db.DefaultContext, app.UID)
+	require.NoError(t, err)
+	assert.NotNil(t, user)
+}
+
+func TestIsValidUserID(t *testing.T) {
+	assert.False(t, user_model.IsValidUserID(-30))
+	assert.False(t, user_model.IsValidUserID(0))
+	assert.True(t, user_model.IsValidUserID(user_model.GhostUserID))
+	assert.True(t, user_model.IsValidUserID(user_model.ActionsUserID))
+	assert.True(t, user_model.IsValidUserID(200))
+}
+
+func TestGetUserFromMap(t *testing.T) {
+	id := int64(200)
+	idMap := map[int64]*user_model.User{
+		id: {ID: id},
+	}
+
+	ghostID := int64(user_model.GhostUserID)
+	actionsID := int64(user_model.ActionsUserID)
+	actualID, actualUser := user_model.GetUserFromMap(-20, idMap)
+	assert.Equal(t, ghostID, actualID)
+	assert.Equal(t, ghostID, actualUser.ID)
+
+	actualID, actualUser = user_model.GetUserFromMap(0, idMap)
+	assert.Equal(t, ghostID, actualID)
+	assert.Equal(t, ghostID, actualUser.ID)
+
+	actualID, actualUser = user_model.GetUserFromMap(ghostID, idMap)
+	assert.Equal(t, ghostID, actualID)
+	assert.Equal(t, ghostID, actualUser.ID)
+
+	actualID, actualUser = user_model.GetUserFromMap(actionsID, idMap)
+	assert.Equal(t, actionsID, actualID)
+	assert.Equal(t, actionsID, actualUser.ID)
+}
+
+func TestGetUserByName(t *testing.T) {
+	defer tests.AddFixtures("models/user/fixtures/")()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	{
+		_, err := user_model.GetUserByName(db.DefaultContext, "")
+		assert.True(t, user_model.IsErrUserNotExist(err), err)
+	}
+	{
+		_, err := user_model.GetUserByName(db.DefaultContext, "UNKNOWN")
+		assert.True(t, user_model.IsErrUserNotExist(err), err)
+	}
+	{
+		user, err := user_model.GetUserByName(db.DefaultContext, "USER2")
+		require.NoError(t, err)
+		assert.Equal(t, "user2", user.Name)
+	}
+	{
+		user, err := user_model.GetUserByName(db.DefaultContext, "org3")
+		require.NoError(t, err)
+		assert.Equal(t, "org3", user.Name)
+	}
+	{
+		user, err := user_model.GetUserByName(db.DefaultContext, "remote01")
+		require.NoError(t, err)
+		assert.Equal(t, "remote01", user.Name)
+	}
+}
+
+func TestGetUserEmailsByNames(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// ignore none active user email
+	assert.ElementsMatch(t, []string{"user8@example.com"}, user_model.GetUserEmailsByNames(db.DefaultContext, []string{"user8", "user9"}))
+	assert.ElementsMatch(t, []string{"user8@example.com", "user5@example.com"}, user_model.GetUserEmailsByNames(db.DefaultContext, []string{"user8", "user5"}))
+
+	assert.ElementsMatch(t, []string{"user8@example.com"}, user_model.GetUserEmailsByNames(db.DefaultContext, []string{"user8", "org7"}))
+}
+
+func TestCanCreateOrganization(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	admin := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	assert.True(t, admin.CanCreateOrganization())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	assert.True(t, user.CanCreateOrganization())
+	// Disable user create organization permission.
+	user.AllowCreateOrganization = false
+	assert.False(t, user.CanCreateOrganization())
+
+	setting.Admin.DisableRegularOrgCreation = true
+	user.AllowCreateOrganization = true
+	assert.True(t, admin.CanCreateOrganization())
+	assert.False(t, user.CanCreateOrganization())
+}
+
+func TestGetAllUsers(t *testing.T) {
+	defer tests.AddFixtures("models/user/fixtures/")()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	users, err := user_model.GetAllUsers(db.DefaultContext)
+	require.NoError(t, err)
+
+	found := make(map[user_model.UserType]bool, 0)
+	for _, user := range users {
+		found[user.Type] = true
+	}
+	assert.True(t, found[user_model.UserTypeIndividual], users)
+	assert.True(t, found[user_model.UserTypeRemoteUser], users)
+	assert.False(t, found[user_model.UserTypeOrganization], users)
+}
+
+func TestAPActorID(t *testing.T) {
+	user := user_model.User{ID: 1}
+	url := user.APActorID()
+	expected := "https://try.gitea.io/api/v1/activitypub/user-id/1"
+	if url != expected {
+		t.Errorf("unexpected APActorID, expected: %q, actual: %q", expected, url)
+	}
+}
+
+func TestSearchUsers(t *testing.T) {
+	defer tests.AddFixtures("models/user/fixtures/")()
+	require.NoError(t, unittest.PrepareTestDatabase())
+	testSuccess := func(opts *user_model.SearchUserOptions, expectedUserOrOrgIDs []int64) {
+		users, _, err := user_model.SearchUsers(db.DefaultContext, opts)
+		require.NoError(t, err)
+		cassText := fmt.Sprintf("ids: %v, opts: %v", expectedUserOrOrgIDs, opts)
+		if assert.Len(t, users, len(expectedUserOrOrgIDs), "case: %s", cassText) {
+			for i, expectedID := range expectedUserOrOrgIDs {
+				assert.EqualValues(t, expectedID, users[i].ID, "case: %s", cassText)
+			}
+		}
+	}
+
+	// test orgs
+	testOrgSuccess := func(opts *user_model.SearchUserOptions, expectedOrgIDs []int64) {
+		opts.Type = user_model.UserTypeOrganization
+		testSuccess(opts, expectedOrgIDs)
+	}
+
+	testOrgSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 1, PageSize: 2}},
+		[]int64{3, 6})
+
+	testOrgSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 2, PageSize: 2}},
+		[]int64{7, 17})
+
+	testOrgSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 3, PageSize: 2}},
+		[]int64{19, 25})
+
+	testOrgSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 4, PageSize: 2}},
+		[]int64{26, 41})
+
+	testOrgSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 5, PageSize: 2}},
+		[]int64{})
+
+	// test users
+	testUserSuccess := func(opts *user_model.SearchUserOptions, expectedUserIDs []int64) {
+		opts.Type = user_model.UserTypeIndividual
+		testSuccess(opts, expectedUserIDs)
+	}
+
+	testUserSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 1}},
+		[]int64{1, 2, 4, 5, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 21, 24, 27, 28, 29, 30, 32, 34, 37, 38, 39, 40, 1041})
+
+	testUserSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 1}, IsActive: optional.Some(false)},
+		[]int64{9})
+
+	testUserSuccess(&user_model.SearchUserOptions{OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 1}, IsActive: optional.Some(true)},
+		[]int64{1, 2, 4, 5, 8, 10, 11, 12, 13, 14, 15, 16, 18, 20, 21, 24, 27, 28, 29, 30, 32, 34, 37, 38, 39, 40, 1041})
+
+	testUserSuccess(&user_model.SearchUserOptions{Keyword: "user1", OrderBy: "id ASC", ListOptions: db.ListOptions{Page: 1}, IsActive: optional.Some(true)},
+		[]int64{1, 10, 11, 12, 13, 14, 15, 16, 18})
+
+	// order by name asc default
+	testUserSuccess(&user_model.SearchUserOptions{Keyword: "user1", ListOptions: db.ListOptions{Page: 1}, IsActive: optional.Some(true)},
+		[]int64{1, 10, 11, 12, 13, 14, 15, 16, 18})
+
+	testUserSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 1}, IsAdmin: optional.Some(true)},
+		[]int64{1})
+
+	testUserSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 1}, IsRestricted: optional.Some(true)},
+		[]int64{29})
+
+	testUserSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 1}, IsProhibitLogin: optional.Some(true)},
+		[]int64{1041, 37})
+
+	testUserSuccess(&user_model.SearchUserOptions{ListOptions: db.ListOptions{Page: 1}, IsTwoFactorEnabled: optional.Some(true)},
+		[]int64{24})
+}
+
+func TestEmailNotificationPreferences(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	for _, test := range []struct {
+		expected string
+		userID   int64
+	}{
+		{user_model.EmailNotificationsEnabled, 1},
+		{user_model.EmailNotificationsEnabled, 2},
+		{user_model.EmailNotificationsOnMention, 3},
+		{user_model.EmailNotificationsOnMention, 4},
+		{user_model.EmailNotificationsEnabled, 5},
+		{user_model.EmailNotificationsEnabled, 6},
+		{user_model.EmailNotificationsDisabled, 7},
+		{user_model.EmailNotificationsEnabled, 8},
+		{user_model.EmailNotificationsOnMention, 9},
+	} {
+		user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: test.userID})
+		assert.Equal(t, test.expected, user.EmailNotificationsPreference)
+	}
+}
+
+func TestHashPasswordDeterministic(t *testing.T) {
+	b := make([]byte, 16)
+	u := &user_model.User{}
+	algos := hash.RecommendedHashAlgorithms
+	for j := 0; j < len(algos); j++ {
+		u.PasswdHashAlgo = algos[j]
+		for i := 0; i < 50; i++ {
+			// generate a random password
+			rand.Read(b)
+			pass := string(b)
+
+			// save the current password in the user - hash it and store the result
+			u.SetPassword(pass)
+			r1 := u.Passwd
+
+			// run again
+			u.SetPassword(pass)
+			r2 := u.Passwd
+
+			assert.NotEqual(t, r1, r2)
+			assert.True(t, u.ValidatePassword(pass))
+		}
+	}
+}
+
+func BenchmarkHashPassword(b *testing.B) {
+	// BenchmarkHashPassword ensures that it takes a reasonable amount of time
+	// to hash a password - in order to protect from brute-force attacks.
+	pass := "password1337"
+	u := &user_model.User{Passwd: pass}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		u.SetPassword(pass)
+	}
+}
+
+func TestNewGitSig(t *testing.T) {
+	users := make([]*user_model.User, 0, 20)
+	err := db.GetEngine(db.DefaultContext).Find(&users)
+	require.NoError(t, err)
+
+	for _, user := range users {
+		sig := user.NewGitSig()
+		assert.NotContains(t, sig.Name, "<")
+		assert.NotContains(t, sig.Name, ">")
+		assert.NotContains(t, sig.Name, "\n")
+		assert.NotEmpty(t, strings.TrimSpace(sig.Name))
+	}
+}
+
+func TestDisplayName(t *testing.T) {
+	users := make([]*user_model.User, 0, 20)
+	err := db.GetEngine(db.DefaultContext).Find(&users)
+	require.NoError(t, err)
+
+	for _, user := range users {
+		displayName := user.DisplayName()
+		assert.Equal(t, strings.TrimSpace(displayName), displayName)
+		if len(strings.TrimSpace(user.FullName)) == 0 {
+			assert.Equal(t, user.Name, displayName)
+		}
+		assert.NotEmpty(t, strings.TrimSpace(displayName))
+	}
+}
+
+func TestCreateUserInvalidEmail(t *testing.T) {
+	user := &user_model.User{
+		Name:               "GiteaBot",
+		Email:              "GiteaBot@gitea.io\r\n",
+		Passwd:             ";p['////..-++']",
+		IsAdmin:            false,
+		Theme:              setting.UI.DefaultTheme,
+		MustChangePassword: false,
+	}
+
+	err := user_model.CreateUser(db.DefaultContext, user)
+	require.Error(t, err)
+	assert.True(t, user_model.IsErrEmailCharIsNotSupported(err))
+}
+
+func TestCreateUserEmailAlreadyUsed(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	// add new user with user2's email
+	user.Name = "testuser"
+	user.LowerName = strings.ToLower(user.Name)
+	user.ID = 0
+	err := user_model.CreateUser(db.DefaultContext, user)
+	require.Error(t, err)
+	assert.True(t, user_model.IsErrEmailAlreadyUsed(err))
+}
+
+func TestCreateUserCustomTimestamps(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	// Add new user with a custom creation timestamp.
+	var creationTimestamp timeutil.TimeStamp = 12345
+	user.Name = "testuser"
+	user.LowerName = strings.ToLower(user.Name)
+	user.ID = 0
+	user.Email = "unique@example.com"
+	user.CreatedUnix = creationTimestamp
+	err := user_model.CreateUser(db.DefaultContext, user)
+	require.NoError(t, err)
+
+	fetched, err := user_model.GetUserByID(context.Background(), user.ID)
+	require.NoError(t, err)
+	assert.Equal(t, creationTimestamp, fetched.CreatedUnix)
+	assert.Equal(t, creationTimestamp, fetched.UpdatedUnix)
+}
+
+func TestCreateUserWithoutCustomTimestamps(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	// There is no way to use a mocked time for the XORM auto-time functionality,
+	// so use the real clock to approximate the expected timestamp.
+	timestampStart := time.Now().Unix()
+
+	// Add new user without a custom creation timestamp.
+	user.Name = "Testuser"
+	user.LowerName = strings.ToLower(user.Name)
+	user.ID = 0
+	user.Email = "unique@example.com"
+	user.CreatedUnix = 0
+	user.UpdatedUnix = 0
+	err := user_model.CreateUser(db.DefaultContext, user)
+	require.NoError(t, err)
+
+	timestampEnd := time.Now().Unix()
+
+	fetched, err := user_model.GetUserByID(context.Background(), user.ID)
+	require.NoError(t, err)
+
+	assert.LessOrEqual(t, timestampStart, fetched.CreatedUnix)
+	assert.LessOrEqual(t, fetched.CreatedUnix, timestampEnd)
+
+	assert.LessOrEqual(t, timestampStart, fetched.UpdatedUnix)
+	assert.LessOrEqual(t, fetched.UpdatedUnix, timestampEnd)
+}
+
+func TestGetUserIDsByNames(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// ignore non existing
+	IDs, err := user_model.GetUserIDsByNames(db.DefaultContext, []string{"user1", "user2", "none_existing_user"}, true)
+	require.NoError(t, err)
+	assert.Equal(t, []int64{1, 2}, IDs)
+
+	// ignore non existing
+	IDs, err = user_model.GetUserIDsByNames(db.DefaultContext, []string{"user1", "do_not_exist"}, false)
+	require.Error(t, err)
+	assert.Equal(t, []int64(nil), IDs)
+}
+
+func TestGetMaileableUsersByIDs(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	results, err := user_model.GetMaileableUsersByIDs(db.DefaultContext, []int64{1, 4}, false)
+	require.NoError(t, err)
+	assert.Len(t, results, 1)
+	if len(results) > 1 {
+		assert.Equal(t, 1, results[0].ID)
+	}
+
+	results, err = user_model.GetMaileableUsersByIDs(db.DefaultContext, []int64{1, 4}, true)
+	require.NoError(t, err)
+	assert.Len(t, results, 2)
+	if len(results) > 2 {
+		assert.Equal(t, 1, results[0].ID)
+		assert.Equal(t, 4, results[1].ID)
+	}
+}
+
+func TestNewUserRedirect(t *testing.T) {
+	// redirect to a completely new name
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	require.NoError(t, user_model.NewUserRedirect(db.DefaultContext, user.ID, user.Name, "newusername"))
+
+	unittest.AssertExistsAndLoadBean(t, &user_model.Redirect{
+		LowerName:      user.LowerName,
+		RedirectUserID: user.ID,
+	})
+	unittest.AssertExistsAndLoadBean(t, &user_model.Redirect{
+		LowerName:      "olduser1",
+		RedirectUserID: user.ID,
+	})
+}
+
+func TestNewUserRedirect2(t *testing.T) {
+	// redirect to previously used name
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+	require.NoError(t, user_model.NewUserRedirect(db.DefaultContext, user.ID, user.Name, "olduser1"))
+
+	unittest.AssertExistsAndLoadBean(t, &user_model.Redirect{
+		LowerName:      user.LowerName,
+		RedirectUserID: user.ID,
+	})
+	unittest.AssertNotExistsBean(t, &user_model.Redirect{
+		LowerName:      "olduser1",
+		RedirectUserID: user.ID,
+	})
+}
+
+func TestNewUserRedirect3(t *testing.T) {
+	// redirect for a previously-unredirected user
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+	require.NoError(t, user_model.NewUserRedirect(db.DefaultContext, user.ID, user.Name, "newusername"))
+
+	unittest.AssertExistsAndLoadBean(t, &user_model.Redirect{
+		LowerName:      user.LowerName,
+		RedirectUserID: user.ID,
+	})
+}
+
+func TestGetUserByOpenID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	_, err := user_model.GetUserByOpenID(db.DefaultContext, "https://unknown")
+	if assert.Error(t, err) {
+		assert.True(t, user_model.IsErrUserNotExist(err))
+	}
+
+	user, err := user_model.GetUserByOpenID(db.DefaultContext, "https://user1.domain1.tld")
+	require.NoError(t, err)
+
+	assert.Equal(t, int64(1), user.ID)
+
+	user, err = user_model.GetUserByOpenID(db.DefaultContext, "https://domain1.tld/user2/")
+	require.NoError(t, err)
+
+	assert.Equal(t, int64(2), user.ID)
+}
+
+func TestFollowUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(followerID, followedID int64) {
+		require.NoError(t, user_model.FollowUser(db.DefaultContext, followerID, followedID))
+		unittest.AssertExistsAndLoadBean(t, &user_model.Follow{UserID: followerID, FollowID: followedID})
+	}
+	testSuccess(4, 2)
+	testSuccess(5, 2)
+
+	require.NoError(t, user_model.FollowUser(db.DefaultContext, 2, 2))
+
+	// Blocked user.
+	require.ErrorIs(t, user_model.ErrBlockedByUser, user_model.FollowUser(db.DefaultContext, 1, 4))
+	require.ErrorIs(t, user_model.ErrBlockedByUser, user_model.FollowUser(db.DefaultContext, 4, 1))
+	unittest.AssertNotExistsBean(t, &user_model.Follow{UserID: 1, FollowID: 4})
+	unittest.AssertNotExistsBean(t, &user_model.Follow{UserID: 4, FollowID: 1})
+
+	unittest.CheckConsistencyFor(t, &user_model.User{})
+}
+
+func TestUnfollowUser(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testSuccess := func(followerID, followedID int64) {
+		require.NoError(t, user_model.UnfollowUser(db.DefaultContext, followerID, followedID))
+		unittest.AssertNotExistsBean(t, &user_model.Follow{UserID: followerID, FollowID: followedID})
+	}
+	testSuccess(4, 2)
+	testSuccess(5, 2)
+	testSuccess(2, 2)
+
+	unittest.CheckConsistencyFor(t, &user_model.User{})
+}
+
+func TestIsUserVisibleToViewer(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user1 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})   // admin, public
+	user4 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 4})   // normal, public
+	user20 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 20}) // public, same team as user31
+	user29 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 29}) // public, is restricted
+	user31 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 31}) // private, same team as user20
+	user33 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 33}) // limited, follows 31
+
+	test := func(u, viewer *user_model.User, expected bool) {
+		name := func(u *user_model.User) string {
+			if u == nil {
+				return "<nil>"
+			}
+			return u.Name
+		}
+		assert.Equal(t, expected, user_model.IsUserVisibleToViewer(db.DefaultContext, u, viewer), "user %v should be visible to viewer %v: %v", name(u), name(viewer), expected)
+	}
+
+	// admin viewer
+	test(user1, user1, true)
+	test(user20, user1, true)
+	test(user31, user1, true)
+	test(user33, user1, true)
+
+	// non admin viewer
+	test(user4, user4, true)
+	test(user20, user4, true)
+	test(user31, user4, false)
+	test(user33, user4, true)
+	test(user4, nil, true)
+
+	// public user
+	test(user4, user20, true)
+	test(user4, user31, true)
+	test(user4, user33, true)
+
+	// limited user
+	test(user33, user33, true)
+	test(user33, user4, true)
+	test(user33, user29, false)
+	test(user33, nil, false)
+
+	// private user
+	test(user31, user31, true)
+	test(user31, user4, false)
+	test(user31, user20, true)
+	test(user31, user29, false)
+	test(user31, user33, true)
+	test(user31, nil, false)
+}
+
+func TestGetAllAdmins(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	admins, err := user_model.GetAllAdmins(db.DefaultContext)
+	require.NoError(t, err)
+
+	assert.Len(t, admins, 1)
+	assert.Equal(t, int64(1), admins[0].ID)
+}
+
+func Test_ValidateUser(t *testing.T) {
+	oldSetting := setting.Service.AllowedUserVisibilityModesSlice
+	defer func() {
+		setting.Service.AllowedUserVisibilityModesSlice = oldSetting
+	}()
+	setting.Service.AllowedUserVisibilityModesSlice = []bool{true, false, true}
+	kases := map[*user_model.User]bool{
+		{ID: 1, Visibility: structs.VisibleTypePublic}:  true,
+		{ID: 2, Visibility: structs.VisibleTypeLimited}: false,
+		{ID: 2, Visibility: structs.VisibleTypePrivate}: true,
+	}
+	for kase, expected := range kases {
+		assert.EqualValues(t, expected, nil == user_model.ValidateUser(kase))
+	}
+}
+
+func Test_NormalizeUserFromEmail(t *testing.T) {
+	oldSetting := setting.Service.AllowDotsInUsernames
+	defer func() {
+		setting.Service.AllowDotsInUsernames = oldSetting
+	}()
+	setting.Service.AllowDotsInUsernames = true
+	testCases := []struct {
+		Input             string
+		Expected          string
+		IsNormalizedValid bool
+	}{
+		{"test", "test", true},
+		{"Sinéad.O'Connor", "Sinead.OConnor", true},
+		{"Æsir", "AEsir", true},
+		// \u00e9\u0065\u0301
+		{"éé", "ee", true},
+		{"Awareness Hub", "Awareness-Hub", true},
+		{"double__underscore", "double__underscore", false}, // We should consider squashing double non-alpha characters
+		{".bad.", ".bad.", false},
+		{"new😀user", "new😀user", false}, // No plans to support
+	}
+	for _, testCase := range testCases {
+		normalizedName, err := user_model.NormalizeUserName(testCase.Input)
+		require.NoError(t, err)
+		assert.EqualValues(t, testCase.Expected, normalizedName)
+		if testCase.IsNormalizedValid {
+			require.NoError(t, user_model.IsUsableUsername(normalizedName))
+		} else {
+			require.Error(t, user_model.IsUsableUsername(normalizedName))
+		}
+	}
+}
+
+func TestEmailTo(t *testing.T) {
+	testCases := []struct {
+		fullName string
+		mail     string
+		result   string
+	}{
+		{"Awareness Hub", "awareness@hub.net", `"Awareness Hub" <awareness@hub.net>`},
+		{"name@example.com", "name@example.com", "name@example.com"},
+		{"Hi Its <Mee>", "ee@mail.box", `"Hi Its Mee" <ee@mail.box>`},
+		{"Sinéad.O'Connor", "sinead.oconnor@gmail.com", "=?utf-8?b?U2luw6lhZC5PJ0Nvbm5vcg==?= <sinead.oconnor@gmail.com>"},
+		{"Æsir", "aesir@gmx.de", "=?utf-8?q?=C3=86sir?= <aesir@gmx.de>"},
+		{"new😀user", "new.user@alo.com", "=?utf-8?q?new=F0=9F=98=80user?= <new.user@alo.com>"}, // codespell-ignore
+		{`"quoted"`, "quoted@test.com", `"quoted" <quoted@test.com>`},
+		{`gusted`, "gusted@test.com", `"gusted" <gusted@test.com>`},
+		{`Joe Q. Public`, "john.q.public@example.com", `"Joe Q. Public" <john.q.public@example.com>`},
+		{`Who?`, "one@y.test", `"Who?" <one@y.test>`},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.result, func(t *testing.T) {
+			testUser := &user_model.User{FullName: testCase.fullName, Email: testCase.mail}
+			assert.EqualValues(t, testCase.result, testUser.EmailTo())
+		})
+	}
+
+	t.Run("Override user's email", func(t *testing.T) {
+		testUser := &user_model.User{FullName: "Christine Jorgensen", Email: "christine@test.com"}
+		assert.EqualValues(t, `"Christine Jorgensen" <christine@example.org>`, testUser.EmailTo("christine@example.org"))
+	})
+}
+
+func TestDisabledUserFeatures(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	testValues := container.SetOf(setting.UserFeatureDeletion,
+		setting.UserFeatureManageSSHKeys,
+		setting.UserFeatureManageGPGKeys)
+
+	oldSetting := setting.Admin.ExternalUserDisableFeatures
+	defer func() {
+		setting.Admin.ExternalUserDisableFeatures = oldSetting
+	}()
+	setting.Admin.ExternalUserDisableFeatures = testValues
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1})
+
+	assert.Empty(t, setting.Admin.UserDisabledFeatures.Values())
+
+	// no features should be disabled with a plain login type
+	assert.LessOrEqual(t, user.LoginType, auth.Plain)
+	assert.Empty(t, user_model.DisabledFeaturesWithLoginType(user).Values())
+	for _, f := range testValues.Values() {
+		assert.False(t, user_model.IsFeatureDisabledWithLoginType(user, f))
+	}
+
+	// check disabled features with external login type
+	user.LoginType = auth.OAuth2
+
+	// all features should be disabled
+	assert.NotEmpty(t, user_model.DisabledFeaturesWithLoginType(user).Values())
+	for _, f := range testValues.Values() {
+		assert.True(t, user_model.IsFeatureDisabledWithLoginType(user, f))
+	}
+}
+
+func TestGenerateEmailAuthorizationCode(t *testing.T) {
+	defer test.MockVariableValue(&setting.Service.ActiveCodeLives, 2)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	code, err := user.GenerateEmailAuthorizationCode(db.DefaultContext, auth.UserActivation)
+	require.NoError(t, err)
+
+	lookupKey, validator, ok := strings.Cut(code, ":")
+	assert.True(t, ok)
+
+	rawValidator, err := hex.DecodeString(validator)
+	require.NoError(t, err)
+
+	authToken, err := auth.FindAuthToken(db.DefaultContext, lookupKey, auth.UserActivation)
+	require.NoError(t, err)
+	assert.False(t, authToken.IsExpired())
+	assert.EqualValues(t, authToken.HashedValidator, auth.HashValidator(rawValidator))
+
+	authToken.Expiry = authToken.Expiry.Add(-int64(setting.Service.ActiveCodeLives) * 60)
+	assert.True(t, authToken.IsExpired())
+}
+
+func TestVerifyUserAuthorizationToken(t *testing.T) {
+	defer test.MockVariableValue(&setting.Service.ActiveCodeLives, 2)()
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
+
+	code, err := user.GenerateEmailAuthorizationCode(db.DefaultContext, auth.UserActivation)
+	require.NoError(t, err)
+
+	lookupKey, _, ok := strings.Cut(code, ":")
+	assert.True(t, ok)
+
+	t.Run("Wrong purpose", func(t *testing.T) {
+		u, err := user_model.VerifyUserAuthorizationToken(db.DefaultContext, code, auth.PasswordReset, false)
+		require.NoError(t, err)
+		assert.Nil(t, u)
+	})
+
+	t.Run("No delete", func(t *testing.T) {
+		u, err := user_model.VerifyUserAuthorizationToken(db.DefaultContext, code, auth.UserActivation, false)
+		require.NoError(t, err)
+		assert.EqualValues(t, user.ID, u.ID)
+
+		authToken, err := auth.FindAuthToken(db.DefaultContext, lookupKey, auth.UserActivation)
+		require.NoError(t, err)
+		assert.NotNil(t, authToken)
+	})
+
+	t.Run("Delete", func(t *testing.T) {
+		u, err := user_model.VerifyUserAuthorizationToken(db.DefaultContext, code, auth.UserActivation, true)
+		require.NoError(t, err)
+		assert.EqualValues(t, user.ID, u.ID)
+
+		authToken, err := auth.FindAuthToken(db.DefaultContext, lookupKey, auth.UserActivation)
+		require.ErrorIs(t, err, util.ErrNotExist)
+		assert.Nil(t, authToken)
+	})
+}
+
+func TestGetInactiveUsers(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	// all inactive users
+	// user1's createdunix is 1730468968
+	users, err := user_model.GetInactiveUsers(db.DefaultContext, 0)
+	require.NoError(t, err)
+	assert.Len(t, users, 1)
+	interval := time.Now().Unix() - 1730468968 + 3600*24
+	users, err = user_model.GetInactiveUsers(db.DefaultContext, time.Duration(interval*int64(time.Second)))
+	require.NoError(t, err)
+	require.Empty(t, users)
+}
diff --git a/models/user/user_update.go b/models/user/user_update.go
new file mode 100644
index 0000000..66702e2
--- /dev/null
+++ b/models/user/user_update.go
@@ -0,0 +1,15 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package user
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+func IncrUserRepoNum(ctx context.Context, userID int64) error {
+	_, err := db.GetEngine(ctx).Incr("num_repos").ID(userID).Update(new(User))
+	return err
+}
diff --git a/models/webhook/hooktask.go b/models/webhook/hooktask.go
new file mode 100644
index 0000000..8734feb
--- /dev/null
+++ b/models/webhook/hooktask.go
@@ -0,0 +1,262 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package webhook
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	gouuid "github.com/google/uuid"
+	"xorm.io/builder"
+)
+
+//   ___ ___                __   ___________              __
+//  /   |   \  ____   ____ |  | _\__    ___/____    _____|  | __
+// /    ~    \/  _ \ /  _ \|  |/ / |    |  \__  \  /  ___/  |/ /
+// \    Y    (  <_> |  <_> )    <  |    |   / __ \_\___ \|    <
+//  \___|_  / \____/ \____/|__|_ \ |____|  (____  /____  >__|_ \
+//        \/                    \/              \/     \/     \/
+
+// HookRequest represents hook task request information.
+type HookRequest struct {
+	URL        string            `json:"url"`
+	HTTPMethod string            `json:"http_method"`
+	Headers    map[string]string `json:"headers"`
+	Body       string            `json:"body"`
+}
+
+// HookResponse represents hook task response information.
+type HookResponse struct {
+	Status  int               `json:"status"`
+	Headers map[string]string `json:"headers"`
+	Body    string            `json:"body"`
+}
+
+// HookTask represents a hook task.
+type HookTask struct {
+	ID             int64  `xorm:"pk autoincr"`
+	HookID         int64  `xorm:"index"`
+	UUID           string `xorm:"unique"`
+	PayloadContent string `xorm:"LONGTEXT"`
+	// PayloadVersion number to allow for smooth version upgrades:
+	//  - PayloadVersion 1: PayloadContent contains the JSON as sent to the URL
+	//  - PayloadVersion 2: PayloadContent contains the original event
+	PayloadVersion int `xorm:"DEFAULT 1"`
+
+	EventType   webhook_module.HookEventType
+	IsDelivered bool
+	Delivered   timeutil.TimeStampNano
+
+	// History info.
+	IsSucceed       bool
+	RequestContent  string        `xorm:"LONGTEXT"`
+	RequestInfo     *HookRequest  `xorm:"-"`
+	ResponseContent string        `xorm:"LONGTEXT"`
+	ResponseInfo    *HookResponse `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(HookTask))
+}
+
+// BeforeUpdate will be invoked by XORM before updating a record
+// representing this object
+func (t *HookTask) BeforeUpdate() {
+	if t.RequestInfo != nil {
+		t.RequestContent = t.simpleMarshalJSON(t.RequestInfo)
+	}
+	if t.ResponseInfo != nil {
+		t.ResponseContent = t.simpleMarshalJSON(t.ResponseInfo)
+	}
+}
+
+// AfterLoad updates the webhook object upon setting a column
+func (t *HookTask) AfterLoad() {
+	if len(t.RequestContent) == 0 {
+		return
+	}
+
+	t.RequestInfo = &HookRequest{}
+	if err := json.Unmarshal([]byte(t.RequestContent), t.RequestInfo); err != nil {
+		log.Error("Unmarshal RequestContent[%d]: %v", t.ID, err)
+	}
+
+	if len(t.ResponseContent) > 0 {
+		t.ResponseInfo = &HookResponse{}
+		if err := json.Unmarshal([]byte(t.ResponseContent), t.ResponseInfo); err != nil {
+			log.Error("Unmarshal ResponseContent[%d]: %v", t.ID, err)
+		}
+	}
+}
+
+func (t *HookTask) simpleMarshalJSON(v any) string {
+	p, err := json.Marshal(v)
+	if err != nil {
+		log.Error("Marshal [%d]: %v", t.ID, err)
+	}
+	return string(p)
+}
+
+// HookTasks returns a list of hook tasks by given conditions, order by ID desc.
+func HookTasks(ctx context.Context, hookID int64, page int) ([]*HookTask, error) {
+	tasks := make([]*HookTask, 0, setting.Webhook.PagingNum)
+	return tasks, db.GetEngine(ctx).
+		Limit(setting.Webhook.PagingNum, (page-1)*setting.Webhook.PagingNum).
+		Where("hook_id=?", hookID).
+		Desc("id").
+		Find(&tasks)
+}
+
+// CreateHookTask creates a new hook task,
+// it handles conversion from Payload to PayloadContent.
+func CreateHookTask(ctx context.Context, t *HookTask) (*HookTask, error) {
+	t.UUID = gouuid.New().String()
+	if t.Delivered == 0 {
+		t.Delivered = timeutil.TimeStampNanoNow()
+	}
+	if t.PayloadVersion == 0 {
+		return nil, errors.New("missing HookTask.PayloadVersion")
+	}
+	return t, db.Insert(ctx, t)
+}
+
+func GetHookTaskByID(ctx context.Context, id int64) (*HookTask, error) {
+	t := &HookTask{}
+
+	has, err := db.GetEngine(ctx).ID(id).Get(t)
+	if err != nil {
+		return nil, err
+	}
+	if !has {
+		return nil, ErrHookTaskNotExist{
+			TaskID: id,
+		}
+	}
+	return t, nil
+}
+
+// UpdateHookTask updates information of hook task.
+func UpdateHookTask(ctx context.Context, t *HookTask) error {
+	_, err := db.GetEngine(ctx).ID(t.ID).AllCols().Update(t)
+	return err
+}
+
+// ReplayHookTask copies a hook task to get re-delivered
+func ReplayHookTask(ctx context.Context, hookID int64, uuid string) (*HookTask, error) {
+	task, exist, err := db.Get[HookTask](ctx, builder.Eq{"hook_id": hookID, "uuid": uuid})
+	if err != nil {
+		return nil, err
+	} else if !exist {
+		return nil, ErrHookTaskNotExist{
+			HookID: hookID,
+			UUID:   uuid,
+		}
+	}
+
+	return CreateHookTask(ctx, &HookTask{
+		HookID:         task.HookID,
+		PayloadContent: task.PayloadContent,
+		EventType:      task.EventType,
+		PayloadVersion: task.PayloadVersion,
+	})
+}
+
+// FindUndeliveredHookTaskIDs will find the next 100 undelivered hook tasks with ID greater than the provided lowerID
+func FindUndeliveredHookTaskIDs(ctx context.Context, lowerID int64) ([]int64, error) {
+	const batchSize = 100
+
+	tasks := make([]int64, 0, batchSize)
+	return tasks, db.GetEngine(ctx).
+		Select("id").
+		Table(new(HookTask)).
+		Where("is_delivered=?", false).
+		And("id > ?", lowerID).
+		Asc("id").
+		Limit(batchSize).
+		Find(&tasks)
+}
+
+func MarkTaskDelivered(ctx context.Context, task *HookTask) (bool, error) {
+	count, err := db.GetEngine(ctx).ID(task.ID).Where("is_delivered = ?", false).Cols("is_delivered").Update(&HookTask{
+		ID:          task.ID,
+		IsDelivered: true,
+	})
+
+	return count != 0, err
+}
+
+// CleanupHookTaskTable deletes rows from hook_task as needed.
+func CleanupHookTaskTable(ctx context.Context, cleanupType HookTaskCleanupType, olderThan time.Duration, numberToKeep int) error {
+	log.Trace("Doing: CleanupHookTaskTable")
+
+	if cleanupType == OlderThan {
+		deleteOlderThan := time.Now().Add(-olderThan).UnixNano()
+		deletes, err := db.GetEngine(ctx).
+			Where("is_delivered = ? and delivered < ?", true, deleteOlderThan).
+			Delete(new(HookTask))
+		if err != nil {
+			return err
+		}
+		log.Trace("Deleted %d rows from hook_task", deletes)
+	} else if cleanupType == PerWebhook {
+		hookIDs := make([]int64, 0, 10)
+		err := db.GetEngine(ctx).
+			Table("webhook").
+			Where("id > 0").
+			Cols("id").
+			Find(&hookIDs)
+		if err != nil {
+			return err
+		}
+		for _, hookID := range hookIDs {
+			select {
+			case <-ctx.Done():
+				return db.ErrCancelledf("Before deleting hook_task records for hook id %d", hookID)
+			default:
+			}
+			if err = deleteDeliveredHookTasksByWebhook(ctx, hookID, numberToKeep); err != nil {
+				return err
+			}
+		}
+	}
+	log.Trace("Finished: CleanupHookTaskTable")
+	return nil
+}
+
+func deleteDeliveredHookTasksByWebhook(ctx context.Context, hookID int64, numberDeliveriesToKeep int) error {
+	log.Trace("Deleting hook_task rows for webhook %d, keeping the most recent %d deliveries", hookID, numberDeliveriesToKeep)
+	deliveryDates := make([]int64, 0, 10)
+	err := db.GetEngine(ctx).Table("hook_task").
+		Where("hook_task.hook_id = ? AND hook_task.is_delivered = ? AND hook_task.delivered is not null", hookID, true).
+		Cols("hook_task.delivered").
+		Join("INNER", "webhook", "hook_task.hook_id = webhook.id").
+		OrderBy("hook_task.delivered desc").
+		Limit(1, numberDeliveriesToKeep).
+		Find(&deliveryDates)
+	if err != nil {
+		return err
+	}
+
+	if len(deliveryDates) > 0 {
+		deletes, err := db.GetEngine(ctx).
+			Where("hook_id = ? and is_delivered = ? and delivered <= ?", hookID, true, deliveryDates[0]).
+			Delete(new(HookTask))
+		if err != nil {
+			return err
+		}
+		log.Trace("Deleted %d hook_task rows for webhook %d", deletes, hookID)
+	} else {
+		log.Trace("No hook_task rows to delete for webhook %d", hookID)
+	}
+
+	return nil
+}
diff --git a/models/webhook/main_test.go b/models/webhook/main_test.go
new file mode 100644
index 0000000..f19465d
--- /dev/null
+++ b/models/webhook/main_test.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package webhook
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+)
+
+func TestMain(m *testing.M) {
+	unittest.MainTest(m, &unittest.TestOptions{
+		FixtureFiles: []string{
+			"webhook.yml",
+			"hook_task.yml",
+		},
+	})
+}
diff --git a/models/webhook/webhook.go b/models/webhook/webhook.go
new file mode 100644
index 0000000..f3370f3
--- /dev/null
+++ b/models/webhook/webhook.go
@@ -0,0 +1,516 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package webhook
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/secret"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"xorm.io/builder"
+)
+
+// ErrWebhookNotExist represents a "WebhookNotExist" kind of error.
+type ErrWebhookNotExist struct {
+	ID int64
+}
+
+// IsErrWebhookNotExist checks if an error is a ErrWebhookNotExist.
+func IsErrWebhookNotExist(err error) bool {
+	_, ok := err.(ErrWebhookNotExist)
+	return ok
+}
+
+func (err ErrWebhookNotExist) Error() string {
+	return fmt.Sprintf("webhook does not exist [id: %d]", err.ID)
+}
+
+func (err ErrWebhookNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// ErrHookTaskNotExist represents a "HookTaskNotExist" kind of error.
+type ErrHookTaskNotExist struct {
+	TaskID int64
+	HookID int64
+	UUID   string
+}
+
+// IsErrHookTaskNotExist checks if an error is a ErrHookTaskNotExist.
+func IsErrHookTaskNotExist(err error) bool {
+	_, ok := err.(ErrHookTaskNotExist)
+	return ok
+}
+
+func (err ErrHookTaskNotExist) Error() string {
+	return fmt.Sprintf("hook task does not exist [task: %d, hook: %d, uuid: %s]", err.TaskID, err.HookID, err.UUID)
+}
+
+func (err ErrHookTaskNotExist) Unwrap() error {
+	return util.ErrNotExist
+}
+
+// HookContentType is the content type of a web hook
+type HookContentType int
+
+const (
+	// ContentTypeJSON is a JSON payload for web hooks
+	ContentTypeJSON HookContentType = iota + 1
+	// ContentTypeForm is an url-encoded form payload for web hook
+	ContentTypeForm
+)
+
+var hookContentTypes = map[string]HookContentType{
+	"json": ContentTypeJSON,
+	"form": ContentTypeForm,
+}
+
+// ToHookContentType returns HookContentType by given name.
+func ToHookContentType(name string) HookContentType {
+	return hookContentTypes[name]
+}
+
+// HookTaskCleanupType is the type of cleanup to perform on hook_task
+type HookTaskCleanupType int
+
+const (
+	// OlderThan hook_task rows will be cleaned up by the age of the row
+	OlderThan HookTaskCleanupType = iota
+	// PerWebhook hook_task rows will be cleaned up by leaving the most recent deliveries for each webhook
+	PerWebhook
+)
+
+var hookTaskCleanupTypes = map[string]HookTaskCleanupType{
+	"OlderThan":  OlderThan,
+	"PerWebhook": PerWebhook,
+}
+
+// ToHookTaskCleanupType returns HookTaskCleanupType by given name.
+func ToHookTaskCleanupType(name string) HookTaskCleanupType {
+	return hookTaskCleanupTypes[name]
+}
+
+// Name returns the name of a given web hook's content type
+func (t HookContentType) Name() string {
+	switch t {
+	case ContentTypeJSON:
+		return "json"
+	case ContentTypeForm:
+		return "form"
+	}
+	return ""
+}
+
+// IsValidHookContentType returns true if given name is a valid hook content type.
+func IsValidHookContentType(name string) bool {
+	_, ok := hookContentTypes[name]
+	return ok
+}
+
+// Webhook represents a web hook object.
+type Webhook struct {
+	ID                        int64 `xorm:"pk autoincr"`
+	RepoID                    int64 `xorm:"INDEX"` // An ID of 0 indicates either a default or system webhook
+	OwnerID                   int64 `xorm:"INDEX"`
+	IsSystemWebhook           bool
+	URL                       string `xorm:"url TEXT"`
+	HTTPMethod                string `xorm:"http_method"`
+	ContentType               HookContentType
+	Secret                    string `xorm:"TEXT"`
+	Events                    string `xorm:"TEXT"`
+	*webhook_module.HookEvent `xorm:"-"`
+	IsActive                  bool                      `xorm:"INDEX"`
+	Type                      webhook_module.HookType   `xorm:"VARCHAR(16) 'type'"`
+	Meta                      string                    `xorm:"TEXT"` // store hook-specific attributes
+	LastStatus                webhook_module.HookStatus // Last delivery status
+
+	// HeaderAuthorizationEncrypted should be accessed using HeaderAuthorization() and SetHeaderAuthorization()
+	HeaderAuthorizationEncrypted string `xorm:"TEXT"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(Webhook))
+}
+
+// AfterLoad updates the webhook object upon setting a column
+func (w *Webhook) AfterLoad() {
+	w.HookEvent = &webhook_module.HookEvent{}
+	if err := json.Unmarshal([]byte(w.Events), w.HookEvent); err != nil {
+		log.Error("Unmarshal[%d]: %v", w.ID, err)
+	}
+}
+
+// History returns history of webhook by given conditions.
+func (w *Webhook) History(ctx context.Context, page int) ([]*HookTask, error) {
+	return HookTasks(ctx, w.ID, page)
+}
+
+// UpdateEvent handles conversion from HookEvent to Events.
+func (w *Webhook) UpdateEvent() error {
+	data, err := json.Marshal(w.HookEvent)
+	w.Events = string(data)
+	return err
+}
+
+// HasCreateEvent returns true if hook enabled create event.
+func (w *Webhook) HasCreateEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Create)
+}
+
+// HasDeleteEvent returns true if hook enabled delete event.
+func (w *Webhook) HasDeleteEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Delete)
+}
+
+// HasForkEvent returns true if hook enabled fork event.
+func (w *Webhook) HasForkEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Fork)
+}
+
+// HasIssuesEvent returns true if hook enabled issues event.
+func (w *Webhook) HasIssuesEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Issues)
+}
+
+// HasIssuesAssignEvent returns true if hook enabled issues assign event.
+func (w *Webhook) HasIssuesAssignEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.IssueAssign)
+}
+
+// HasIssuesLabelEvent returns true if hook enabled issues label event.
+func (w *Webhook) HasIssuesLabelEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.IssueLabel)
+}
+
+// HasIssuesMilestoneEvent returns true if hook enabled issues milestone event.
+func (w *Webhook) HasIssuesMilestoneEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.IssueMilestone)
+}
+
+// HasIssueCommentEvent returns true if hook enabled issue_comment event.
+func (w *Webhook) HasIssueCommentEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.IssueComment)
+}
+
+// HasPushEvent returns true if hook enabled push event.
+func (w *Webhook) HasPushEvent() bool {
+	return w.PushOnly || w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Push)
+}
+
+// HasPullRequestEvent returns true if hook enabled pull request event.
+func (w *Webhook) HasPullRequestEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequest)
+}
+
+// HasPullRequestAssignEvent returns true if hook enabled pull request assign event.
+func (w *Webhook) HasPullRequestAssignEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestAssign)
+}
+
+// HasPullRequestLabelEvent returns true if hook enabled pull request label event.
+func (w *Webhook) HasPullRequestLabelEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestLabel)
+}
+
+// HasPullRequestMilestoneEvent returns true if hook enabled pull request milestone event.
+func (w *Webhook) HasPullRequestMilestoneEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestMilestone)
+}
+
+// HasPullRequestCommentEvent returns true if hook enabled pull_request_comment event.
+func (w *Webhook) HasPullRequestCommentEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestComment)
+}
+
+// HasPullRequestApprovedEvent returns true if hook enabled pull request review event.
+func (w *Webhook) HasPullRequestApprovedEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestReview)
+}
+
+// HasPullRequestRejectedEvent returns true if hook enabled pull request review event.
+func (w *Webhook) HasPullRequestRejectedEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestReview)
+}
+
+// HasPullRequestReviewCommentEvent returns true if hook enabled pull request review event.
+func (w *Webhook) HasPullRequestReviewCommentEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestReview)
+}
+
+// HasPullRequestSyncEvent returns true if hook enabled pull request sync event.
+func (w *Webhook) HasPullRequestSyncEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestSync)
+}
+
+// HasWikiEvent returns true if hook enabled wiki event.
+func (w *Webhook) HasWikiEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvent.Wiki)
+}
+
+// HasReleaseEvent returns if hook enabled release event.
+func (w *Webhook) HasReleaseEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Release)
+}
+
+// HasRepositoryEvent returns if hook enabled repository event.
+func (w *Webhook) HasRepositoryEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Repository)
+}
+
+// HasPackageEvent returns if hook enabled package event.
+func (w *Webhook) HasPackageEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.Package)
+}
+
+// HasPullRequestReviewRequestEvent returns true if hook enabled pull request review request event.
+func (w *Webhook) HasPullRequestReviewRequestEvent() bool {
+	return w.SendEverything ||
+		(w.ChooseEvents && w.HookEvents.PullRequestReviewRequest)
+}
+
+// EventCheckers returns event checkers
+func (w *Webhook) EventCheckers() []struct {
+	Has  func() bool
+	Type webhook_module.HookEventType
+} {
+	return []struct {
+		Has  func() bool
+		Type webhook_module.HookEventType
+	}{
+		{w.HasCreateEvent, webhook_module.HookEventCreate},
+		{w.HasDeleteEvent, webhook_module.HookEventDelete},
+		{w.HasForkEvent, webhook_module.HookEventFork},
+		{w.HasPushEvent, webhook_module.HookEventPush},
+		{w.HasIssuesEvent, webhook_module.HookEventIssues},
+		{w.HasIssuesAssignEvent, webhook_module.HookEventIssueAssign},
+		{w.HasIssuesLabelEvent, webhook_module.HookEventIssueLabel},
+		{w.HasIssuesMilestoneEvent, webhook_module.HookEventIssueMilestone},
+		{w.HasIssueCommentEvent, webhook_module.HookEventIssueComment},
+		{w.HasPullRequestEvent, webhook_module.HookEventPullRequest},
+		{w.HasPullRequestAssignEvent, webhook_module.HookEventPullRequestAssign},
+		{w.HasPullRequestLabelEvent, webhook_module.HookEventPullRequestLabel},
+		{w.HasPullRequestMilestoneEvent, webhook_module.HookEventPullRequestMilestone},
+		{w.HasPullRequestCommentEvent, webhook_module.HookEventPullRequestComment},
+		{w.HasPullRequestApprovedEvent, webhook_module.HookEventPullRequestReviewApproved},
+		{w.HasPullRequestRejectedEvent, webhook_module.HookEventPullRequestReviewRejected},
+		{w.HasPullRequestCommentEvent, webhook_module.HookEventPullRequestReviewComment},
+		{w.HasPullRequestSyncEvent, webhook_module.HookEventPullRequestSync},
+		{w.HasWikiEvent, webhook_module.HookEventWiki},
+		{w.HasRepositoryEvent, webhook_module.HookEventRepository},
+		{w.HasReleaseEvent, webhook_module.HookEventRelease},
+		{w.HasPackageEvent, webhook_module.HookEventPackage},
+		{w.HasPullRequestReviewRequestEvent, webhook_module.HookEventPullRequestReviewRequest},
+	}
+}
+
+// EventsArray returns an array of hook events
+func (w *Webhook) EventsArray() []string {
+	events := make([]string, 0, 7)
+
+	for _, c := range w.EventCheckers() {
+		if c.Has() {
+			events = append(events, string(c.Type))
+		}
+	}
+	return events
+}
+
+// HeaderAuthorization returns the decrypted Authorization header.
+// Not on the reference (*w), to be accessible on WebhooksNew.
+func (w Webhook) HeaderAuthorization() (string, error) {
+	if w.HeaderAuthorizationEncrypted == "" {
+		return "", nil
+	}
+	return secret.DecryptSecret(setting.SecretKey, w.HeaderAuthorizationEncrypted)
+}
+
+// HeaderAuthorizationTrimPrefix returns the decrypted Authorization with a specified prefix trimmed.
+func (w Webhook) HeaderAuthorizationTrimPrefix(prefix string) (string, error) {
+	s, err := w.HeaderAuthorization()
+	if err != nil {
+		return "", err
+	}
+	return strings.TrimPrefix(s, prefix), nil
+}
+
+// SetHeaderAuthorization encrypts and sets the Authorization header.
+func (w *Webhook) SetHeaderAuthorization(cleartext string) error {
+	if cleartext == "" {
+		w.HeaderAuthorizationEncrypted = ""
+		return nil
+	}
+	ciphertext, err := secret.EncryptSecret(setting.SecretKey, cleartext)
+	if err != nil {
+		return err
+	}
+	w.HeaderAuthorizationEncrypted = ciphertext
+	return nil
+}
+
+// CreateWebhook creates a new web hook.
+func CreateWebhook(ctx context.Context, w *Webhook) error {
+	w.Type = strings.TrimSpace(w.Type)
+	return db.Insert(ctx, w)
+}
+
+// CreateWebhooks creates multiple web hooks
+func CreateWebhooks(ctx context.Context, ws []*Webhook) error {
+	// xorm returns err "no element on slice when insert" for empty slices.
+	if len(ws) == 0 {
+		return nil
+	}
+	for i := 0; i < len(ws); i++ {
+		ws[i].Type = strings.TrimSpace(ws[i].Type)
+	}
+	return db.Insert(ctx, ws)
+}
+
+// GetWebhookByID returns webhook of repository by given ID.
+func GetWebhookByID(ctx context.Context, id int64) (*Webhook, error) {
+	bean := new(Webhook)
+	has, err := db.GetEngine(ctx).ID(id).Get(bean)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrWebhookNotExist{ID: id}
+	}
+	return bean, nil
+}
+
+// GetWebhookByRepoID returns webhook of repository by given ID.
+func GetWebhookByRepoID(ctx context.Context, repoID, id int64) (*Webhook, error) {
+	webhook := new(Webhook)
+	has, err := db.GetEngine(ctx).Where("id=? AND repo_id=?", id, repoID).Get(webhook)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrWebhookNotExist{ID: id}
+	}
+	return webhook, nil
+}
+
+// GetWebhookByOwnerID returns webhook of a user or organization by given ID.
+func GetWebhookByOwnerID(ctx context.Context, ownerID, id int64) (*Webhook, error) {
+	webhook := new(Webhook)
+	has, err := db.GetEngine(ctx).Where("id=? AND owner_id=?", id, ownerID).Get(webhook)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrWebhookNotExist{ID: id}
+	}
+	return webhook, nil
+}
+
+// ListWebhookOptions are options to filter webhooks on ListWebhooksByOpts
+type ListWebhookOptions struct {
+	db.ListOptions
+	RepoID   int64
+	OwnerID  int64
+	IsActive optional.Option[bool]
+}
+
+func (opts ListWebhookOptions) ToConds() builder.Cond {
+	cond := builder.NewCond()
+	if opts.RepoID != 0 {
+		cond = cond.And(builder.Eq{"webhook.repo_id": opts.RepoID})
+	}
+	if opts.OwnerID != 0 {
+		cond = cond.And(builder.Eq{"webhook.owner_id": opts.OwnerID})
+	}
+	if opts.IsActive.Has() {
+		cond = cond.And(builder.Eq{"webhook.is_active": opts.IsActive.Value()})
+	}
+	return cond
+}
+
+var _ db.FindOptionsOrder = ListWebhookOptions{}
+
+// ToOrders implements db.FindOptionsOrder, to sort the webhooks by id asc
+func (opts ListWebhookOptions) ToOrders() string {
+	return "webhook.id"
+}
+
+// UpdateWebhook updates information of webhook.
+func UpdateWebhook(ctx context.Context, w *Webhook) error {
+	_, err := db.GetEngine(ctx).ID(w.ID).AllCols().Update(w)
+	return err
+}
+
+// UpdateWebhookLastStatus updates last status of webhook.
+func UpdateWebhookLastStatus(ctx context.Context, w *Webhook) error {
+	_, err := db.GetEngine(ctx).ID(w.ID).Cols("last_status").Update(w)
+	return err
+}
+
+// DeleteWebhookByID uses argument bean as query condition,
+// ID must be specified and do not assign unnecessary fields.
+func DeleteWebhookByID(ctx context.Context, id int64) (err error) {
+	ctx, committer, err := db.TxContext(ctx)
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+
+	if count, err := db.DeleteByID[Webhook](ctx, id); err != nil {
+		return err
+	} else if count == 0 {
+		return ErrWebhookNotExist{ID: id}
+	} else if _, err = db.DeleteByBean(ctx, &HookTask{HookID: id}); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// DeleteWebhookByRepoID deletes webhook of repository by given ID.
+func DeleteWebhookByRepoID(ctx context.Context, repoID, id int64) error {
+	if _, err := GetWebhookByRepoID(ctx, repoID, id); err != nil {
+		return err
+	}
+	return DeleteWebhookByID(ctx, id)
+}
+
+// DeleteWebhookByOwnerID deletes webhook of a user or organization by given ID.
+func DeleteWebhookByOwnerID(ctx context.Context, ownerID, id int64) error {
+	if _, err := GetWebhookByOwnerID(ctx, ownerID, id); err != nil {
+		return err
+	}
+	return DeleteWebhookByID(ctx, id)
+}
diff --git a/models/webhook/webhook_system.go b/models/webhook/webhook_system.go
new file mode 100644
index 0000000..62e8286
--- /dev/null
+++ b/models/webhook/webhook_system.go
@@ -0,0 +1,83 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package webhook
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+)
+
+// GetDefaultWebhooks returns all admin-default webhooks.
+func GetDefaultWebhooks(ctx context.Context) ([]*Webhook, error) {
+	return getAdminWebhooks(ctx, false)
+}
+
+// GetSystemOrDefaultWebhook returns admin system or default webhook by given ID.
+func GetSystemOrDefaultWebhook(ctx context.Context, id int64) (*Webhook, error) {
+	webhook := &Webhook{ID: id}
+	has, err := db.GetEngine(ctx).
+		Where("repo_id=? AND owner_id=?", 0, 0).
+		Get(webhook)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrWebhookNotExist{ID: id}
+	}
+	return webhook, nil
+}
+
+// GetSystemWebhooks returns all admin system webhooks.
+func GetSystemWebhooks(ctx context.Context, onlyActive bool) ([]*Webhook, error) {
+	return getAdminWebhooks(ctx, true, onlyActive)
+}
+
+func getAdminWebhooks(ctx context.Context, systemWebhooks bool, onlyActive ...bool) ([]*Webhook, error) {
+	webhooks := make([]*Webhook, 0, 5)
+	if len(onlyActive) > 0 && onlyActive[0] {
+		return webhooks, db.GetEngine(ctx).
+			Where("repo_id=? AND owner_id=? AND is_system_webhook=? AND is_active = ?", 0, 0, systemWebhooks, true).
+			OrderBy("id").
+			Find(&webhooks)
+	}
+	return webhooks, db.GetEngine(ctx).
+		Where("repo_id=? AND owner_id=? AND is_system_webhook=?", 0, 0, systemWebhooks).
+		OrderBy("id").
+		Find(&webhooks)
+}
+
+// DeleteDefaultSystemWebhook deletes an admin-configured default or system webhook (where Org and Repo ID both 0)
+func DeleteDefaultSystemWebhook(ctx context.Context, id int64) error {
+	return db.WithTx(ctx, func(ctx context.Context) error {
+		count, err := db.GetEngine(ctx).
+			Where("repo_id=? AND owner_id=?", 0, 0).
+			Delete(&Webhook{ID: id})
+		if err != nil {
+			return err
+		} else if count == 0 {
+			return ErrWebhookNotExist{ID: id}
+		}
+
+		_, err = db.DeleteByBean(ctx, &HookTask{HookID: id})
+		return err
+	})
+}
+
+// CopyDefaultWebhooksToRepo creates copies of the default webhooks in a new repo
+func CopyDefaultWebhooksToRepo(ctx context.Context, repoID int64) error {
+	ws, err := GetDefaultWebhooks(ctx)
+	if err != nil {
+		return fmt.Errorf("GetDefaultWebhooks: %v", err)
+	}
+
+	for _, w := range ws {
+		w.ID = 0
+		w.RepoID = repoID
+		if err := CreateWebhook(ctx, w); err != nil {
+			return fmt.Errorf("CreateWebhook: %v", err)
+		}
+	}
+	return nil
+}
diff --git a/models/webhook/webhook_test.go b/models/webhook/webhook_test.go
new file mode 100644
index 0000000..848440b
--- /dev/null
+++ b/models/webhook/webhook_test.go
@@ -0,0 +1,350 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package webhook
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/timeutil"
+	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestHookContentType_Name(t *testing.T) {
+	assert.Equal(t, "json", ContentTypeJSON.Name())
+	assert.Equal(t, "form", ContentTypeForm.Name())
+}
+
+func TestIsValidHookContentType(t *testing.T) {
+	assert.True(t, IsValidHookContentType("json"))
+	assert.True(t, IsValidHookContentType("form"))
+	assert.False(t, IsValidHookContentType("invalid"))
+}
+
+func TestWebhook_History(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	webhook := unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 1})
+	tasks, err := webhook.History(db.DefaultContext, 0)
+	require.NoError(t, err)
+	if assert.Len(t, tasks, 3) {
+		assert.Equal(t, int64(3), tasks[0].ID)
+		assert.Equal(t, int64(2), tasks[1].ID)
+		assert.Equal(t, int64(1), tasks[2].ID)
+	}
+
+	webhook = unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 2})
+	tasks, err = webhook.History(db.DefaultContext, 0)
+	require.NoError(t, err)
+	assert.Empty(t, tasks)
+}
+
+func TestWebhook_UpdateEvent(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	webhook := unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 1})
+	hookEvent := &webhook_module.HookEvent{
+		PushOnly:       true,
+		SendEverything: false,
+		ChooseEvents:   false,
+		HookEvents: webhook_module.HookEvents{
+			Create:      false,
+			Push:        true,
+			PullRequest: false,
+		},
+	}
+	webhook.HookEvent = hookEvent
+	require.NoError(t, webhook.UpdateEvent())
+	assert.NotEmpty(t, webhook.Events)
+	actualHookEvent := &webhook_module.HookEvent{}
+	require.NoError(t, json.Unmarshal([]byte(webhook.Events), actualHookEvent))
+	assert.Equal(t, *hookEvent, *actualHookEvent)
+}
+
+func TestWebhook_EventsArray(t *testing.T) {
+	assert.Equal(t, []string{
+		"create", "delete", "fork", "push",
+		"issues", "issue_assign", "issue_label", "issue_milestone", "issue_comment",
+		"pull_request", "pull_request_assign", "pull_request_label", "pull_request_milestone",
+		"pull_request_comment", "pull_request_review_approved", "pull_request_review_rejected",
+		"pull_request_review_comment", "pull_request_sync", "wiki", "repository", "release",
+		"package", "pull_request_review_request",
+	},
+		(&Webhook{
+			HookEvent: &webhook_module.HookEvent{SendEverything: true},
+		}).EventsArray(),
+	)
+
+	assert.Equal(t, []string{"push"},
+		(&Webhook{
+			HookEvent: &webhook_module.HookEvent{PushOnly: true},
+		}).EventsArray(),
+	)
+}
+
+func TestCreateWebhook(t *testing.T) {
+	hook := &Webhook{
+		RepoID:      3,
+		URL:         "www.example.com/unit_test",
+		ContentType: ContentTypeJSON,
+		Events:      `{"push_only":false,"send_everything":false,"choose_events":false,"events":{"create":false,"push":true,"pull_request":true}}`,
+	}
+	unittest.AssertNotExistsBean(t, hook)
+	require.NoError(t, CreateWebhook(db.DefaultContext, hook))
+	unittest.AssertExistsAndLoadBean(t, hook)
+}
+
+func TestGetWebhookByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hook, err := GetWebhookByRepoID(db.DefaultContext, 1, 1)
+	require.NoError(t, err)
+	assert.Equal(t, int64(1), hook.ID)
+
+	_, err = GetWebhookByRepoID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	require.Error(t, err)
+	assert.True(t, IsErrWebhookNotExist(err))
+}
+
+func TestGetWebhookByOwnerID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hook, err := GetWebhookByOwnerID(db.DefaultContext, 3, 3)
+	require.NoError(t, err)
+	assert.Equal(t, int64(3), hook.ID)
+
+	_, err = GetWebhookByOwnerID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	require.Error(t, err)
+	assert.True(t, IsErrWebhookNotExist(err))
+}
+
+func TestGetActiveWebhooksByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	activateWebhook(t, 1)
+
+	hooks, err := db.Find[Webhook](db.DefaultContext, ListWebhookOptions{RepoID: 1, IsActive: optional.Some(true)})
+	require.NoError(t, err)
+	if assert.Len(t, hooks, 1) {
+		assert.Equal(t, int64(1), hooks[0].ID)
+		assert.True(t, hooks[0].IsActive)
+	}
+}
+
+func TestGetWebhooksByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hooks, err := db.Find[Webhook](db.DefaultContext, ListWebhookOptions{RepoID: 1})
+	require.NoError(t, err)
+	if assert.Len(t, hooks, 2) {
+		assert.Equal(t, int64(1), hooks[0].ID)
+		assert.Equal(t, int64(2), hooks[1].ID)
+	}
+}
+
+func TestGetActiveWebhooksByOwnerID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	activateWebhook(t, 3)
+
+	hooks, err := db.Find[Webhook](db.DefaultContext, ListWebhookOptions{OwnerID: 3, IsActive: optional.Some(true)})
+	require.NoError(t, err)
+	if assert.Len(t, hooks, 1) {
+		assert.Equal(t, int64(3), hooks[0].ID)
+		assert.True(t, hooks[0].IsActive)
+	}
+}
+
+func activateWebhook(t *testing.T, hookID int64) {
+	t.Helper()
+	updated, err := db.GetEngine(db.DefaultContext).ID(hookID).Cols("is_active").Update(Webhook{IsActive: true})
+	assert.Equal(t, int64(1), updated)
+	require.NoError(t, err)
+}
+
+func TestGetWebhooksByOwnerID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	activateWebhook(t, 3)
+
+	hooks, err := db.Find[Webhook](db.DefaultContext, ListWebhookOptions{OwnerID: 3})
+	require.NoError(t, err)
+	if assert.Len(t, hooks, 1) {
+		assert.Equal(t, int64(3), hooks[0].ID)
+		assert.True(t, hooks[0].IsActive)
+	}
+}
+
+func TestUpdateWebhook(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hook := unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 2})
+	hook.IsActive = true
+	hook.ContentType = ContentTypeForm
+	unittest.AssertNotExistsBean(t, hook)
+	require.NoError(t, UpdateWebhook(db.DefaultContext, hook))
+	unittest.AssertExistsAndLoadBean(t, hook)
+}
+
+func TestDeleteWebhookByRepoID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 2, RepoID: 1})
+	require.NoError(t, DeleteWebhookByRepoID(db.DefaultContext, 1, 2))
+	unittest.AssertNotExistsBean(t, &Webhook{ID: 2, RepoID: 1})
+
+	err := DeleteWebhookByRepoID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	require.Error(t, err)
+	assert.True(t, IsErrWebhookNotExist(err))
+}
+
+func TestDeleteWebhookByOwnerID(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	unittest.AssertExistsAndLoadBean(t, &Webhook{ID: 3, OwnerID: 3})
+	require.NoError(t, DeleteWebhookByOwnerID(db.DefaultContext, 3, 3))
+	unittest.AssertNotExistsBean(t, &Webhook{ID: 3, OwnerID: 3})
+
+	err := DeleteWebhookByOwnerID(db.DefaultContext, unittest.NonexistentID, unittest.NonexistentID)
+	require.Error(t, err)
+	assert.True(t, IsErrWebhookNotExist(err))
+}
+
+func TestHookTasks(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTasks, err := HookTasks(db.DefaultContext, 1, 1)
+	require.NoError(t, err)
+	if assert.Len(t, hookTasks, 3) {
+		assert.Equal(t, int64(3), hookTasks[0].ID)
+		assert.Equal(t, int64(2), hookTasks[1].ID)
+		assert.Equal(t, int64(1), hookTasks[2].ID)
+	}
+
+	hookTasks, err = HookTasks(db.DefaultContext, unittest.NonexistentID, 1)
+	require.NoError(t, err)
+	assert.Empty(t, hookTasks)
+}
+
+func TestCreateHookTask(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         3,
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+}
+
+func TestUpdateHookTask(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+
+	hook := unittest.AssertExistsAndLoadBean(t, &HookTask{ID: 1})
+	hook.PayloadContent = "new payload content"
+	hook.IsDelivered = true
+	unittest.AssertNotExistsBean(t, hook)
+	require.NoError(t, UpdateHookTask(db.DefaultContext, hook))
+	unittest.AssertExistsAndLoadBean(t, hook)
+}
+
+func TestCleanupHookTaskTable_PerWebhook_DeletesDelivered(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         3,
+		IsDelivered:    true,
+		Delivered:      timeutil.TimeStampNanoNow(),
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), PerWebhook, 168*time.Hour, 0))
+	unittest.AssertNotExistsBean(t, hookTask)
+}
+
+func TestCleanupHookTaskTable_PerWebhook_LeavesUndelivered(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         4,
+		IsDelivered:    false,
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), PerWebhook, 168*time.Hour, 0))
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+}
+
+func TestCleanupHookTaskTable_PerWebhook_LeavesMostRecentTask(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         4,
+		IsDelivered:    true,
+		Delivered:      timeutil.TimeStampNanoNow(),
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), PerWebhook, 168*time.Hour, 1))
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+}
+
+func TestCleanupHookTaskTable_OlderThan_DeletesDelivered(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         3,
+		IsDelivered:    true,
+		Delivered:      timeutil.TimeStampNano(time.Now().AddDate(0, 0, -8).UnixNano()),
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), OlderThan, 168*time.Hour, 0))
+	unittest.AssertNotExistsBean(t, hookTask)
+}
+
+func TestCleanupHookTaskTable_OlderThan_LeavesUndelivered(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         4,
+		IsDelivered:    false,
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), OlderThan, 168*time.Hour, 0))
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+}
+
+func TestCleanupHookTaskTable_OlderThan_LeavesTaskEarlierThanAgeToDelete(t *testing.T) {
+	require.NoError(t, unittest.PrepareTestDatabase())
+	hookTask := &HookTask{
+		HookID:         4,
+		IsDelivered:    true,
+		Delivered:      timeutil.TimeStampNano(time.Now().AddDate(0, 0, -6).UnixNano()),
+		PayloadVersion: 2,
+	}
+	unittest.AssertNotExistsBean(t, hookTask)
+	_, err := CreateHookTask(db.DefaultContext, hookTask)
+	require.NoError(t, err)
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+
+	require.NoError(t, CleanupHookTaskTable(context.Background(), OlderThan, 168*time.Hour, 0))
+	unittest.AssertExistsAndLoadBean(t, hookTask)
+}