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-rw-r--r--models/migrations/v1_22/v294.go53
1 files changed, 53 insertions, 0 deletions
diff --git a/models/migrations/v1_22/v294.go b/models/migrations/v1_22/v294.go
new file mode 100644
index 0000000000..20e261fb1b
--- /dev/null
+++ b/models/migrations/v1_22/v294.go
@@ -0,0 +1,53 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_22 //nolint
+
+import (
+ "fmt"
+
+ "xorm.io/xorm"
+ "xorm.io/xorm/schemas"
+)
+
+// AddUniqueIndexForProjectIssue adds unique indexes for project issue table
+func AddUniqueIndexForProjectIssue(x *xorm.Engine) error {
+ // remove possible duplicated records in table project_issue
+ type result struct {
+ IssueID int64
+ ProjectID int64
+ Cnt int
+ }
+ var results []result
+ if err := x.Select("issue_id, project_id, count(*) as cnt").
+ Table("project_issue").
+ GroupBy("issue_id, project_id").
+ Having("count(*) > 1").
+ Find(&results); err != nil {
+ return err
+ }
+ for _, r := range results {
+ if x.Dialect().URI().DBType == schemas.MSSQL {
+ if _, err := x.Exec(fmt.Sprintf("delete from project_issue where id in (SELECT top %d id FROM project_issue WHERE issue_id = ? and project_id = ?)", r.Cnt-1), r.IssueID, r.ProjectID); err != nil {
+ return err
+ }
+ } else {
+ var ids []int64
+ if err := x.SQL("SELECT id FROM project_issue WHERE issue_id = ? and project_id = ? limit ?", r.IssueID, r.ProjectID, r.Cnt-1).Find(&ids); err != nil {
+ return err
+ }
+ if _, err := x.Table("project_issue").In("id", ids).Delete(); err != nil {
+ return err
+ }
+ }
+ }
+
+ // add unique index for project_issue table
+ type ProjectIssue struct { //revive:disable-line:exported
+ ID int64 `xorm:"pk autoincr"`
+ IssueID int64 `xorm:"INDEX unique(s)"`
+ ProjectID int64 `xorm:"INDEX unique(s)"`
+ }
+
+ return x.Sync(new(ProjectIssue))
+}