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>
This commit is contained in:
Lunny Xiao 2022-11-13 04:18:50 +08:00 committed by GitHub
parent a0a425a13b
commit 34283a74e8
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91 changed files with 252 additions and 176 deletions

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@ -64,7 +64,7 @@ func IsUserAssignedToIssue(ctx context.Context, issue *Issue, user *user_model.U
// ToggleIssueAssignee changes a user between assigned and not assigned for this issue, and make issue comment for it.
func ToggleIssueAssignee(issue *Issue, doer *user_model.User, assigneeID int64) (removed bool, comment *Comment, err error) {
ctx, committer, err := db.TxContext()
ctx, committer, err := db.TxContext(db.DefaultContext)
if err != nil {
return false, nil, err
}