From dd136858f1ea40ad3c94191d647487fa4f31926c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Fri, 18 Oct 2024 20:33:49 +0200
Subject: Adding upstream version 9.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>
---
 models/migrations/v1_22/v283.go | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 models/migrations/v1_22/v283.go

(limited to 'models/migrations/v1_22/v283.go')

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{})
+}
-- 
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