Update issue_index to finish migration (#16685)

* update issue_index to finish migration

* One Func to RecalculateIssueIndexForRepo

1 files changed, 25 insertions, 0 deletions

diff --git a/models/issue.go b/models/issue.go
index 8b83612c2a..804d7dc101 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -982,6 +982,31 @@ func newIssue(e *xorm.Session, doer *User, opts NewIssueOptions) (err error) {
 	return opts.Issue.addCrossReferences(e, doer, false)
 }
 
+// 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(repoID int64) error {
+	sess := x.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return err
+	}
+
+	if err := upsertResourceIndex(sess, "issue_index", repoID); err != nil {
+		return err
+	}
+
+	var max int64
+	if _, err := sess.Select(" MAX(`index`)").Table("issue").Where("repo_id=?", repoID).Get(&max); err != nil {
+		return err
+	}
+
+	if _, err := sess.Exec("UPDATE `issue_index` SET max_index=? WHERE group_id=?", max, repoID); err != nil {
+		return err
+	}
+
+	return sess.Commit()
+}
+
 // NewIssue creates new issue with labels for repository.
 func NewIssue(repo *Repository, issue *Issue, labelIDs []int64, uuids []string) (err error) {
 	idx, err := GetNextResourceIndex("issue_index", repo.ID)