Allow detect whether it's in a database transaction for a context.Context (#21756)

Fix #19513

This PR introduce a new db method `InTransaction(context.Context)`,
and also builtin check on `db.TxContext` and `db.WithTx`.
There is also a new method `db.AutoTx` has been introduced but could be used by other PRs.

`WithTx` will always open a new transaction, if a transaction exist in context, return an error.
`AutoTx` will try to open a new transaction if no transaction exist in context.
That means it will always enter a transaction if there is no error.

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: 6543 <6543@obermui.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/services/user/user.go b/services/user/user.go
index c8b497a5c4..4186efe682 100644
--- a/services/user/user.go
+++ b/services/user/user.go
@@ -132,7 +132,7 @@ func DeleteUser(ctx context.Context, u *user_model.User, purge bool) error {
 		}
 	}
 
-	ctx, committer, err := db.TxContext()
+	ctx, committer, err := db.TxContext(db.DefaultContext)
 	if err != nil {
 		return err
 	}
@@ -235,7 +235,7 @@ func UploadAvatar(u *user_model.User, data []byte) error {
 		return err
 	}
 
-	ctx, committer, err := db.TxContext()
+	ctx, committer, err := db.TxContext(db.DefaultContext)
 	if err != nil {
 		return err
 	}