Add issue comment when moving issues from one column to another of the project (#29311)

Fix #27278
Replace #27816

This PR adds a meta-comment for an issue when dragging an issue from one
column to another of a project.

<img width="600" alt="image"
src="https://github.com/go-gitea/gitea/assets/81045/5fc1d954-430e-4db0-aaee-a00006fa91f5">

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: yp05327 <576951401@qq.com>

1 files changed, 0 insertions, 24 deletions

diff --git a/models/project/issue.go b/models/project/issue.go
index 3361b533b9..1c31b154ce 100644
--- a/models/project/issue.go
+++ b/models/project/issue.go
@@ -76,30 +76,6 @@ func (p *Project) NumOpenIssues(ctx context.Context) int {
 	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")