Add migrations for wrong negative line number in the review code comment

Author: lunny

models/migrations/migrations.go

@@ -24,6 +24,7 @@ import (
 	"code.gitea.io/gitea/models/migrations/v1_22"
 	"code.gitea.io/gitea/models/migrations/v1_23"
 	"code.gitea.io/gitea/models/migrations/v1_24"
+	"code.gitea.io/gitea/models/migrations/v1_25"
 	"code.gitea.io/gitea/models/migrations/v1_6"
 	"code.gitea.io/gitea/models/migrations/v1_7"
 	"code.gitea.io/gitea/models/migrations/v1_8"
@@ -382,6 +383,9 @@ func prepareMigrationTasks() []*migration {
 		newMigration(318, "Add anonymous_access_mode for repo_unit", v1_24.AddRepoUnitAnonymousAccessMode),
 		newMigration(319, "Add ExclusiveOrder to Label table", v1_24.AddExclusiveOrderColumnToLabelTable),
 		newMigration(320, "Migrate two_factor_policy to login_source table", v1_24.MigrateSkipTwoFactor),
+
+		// Gitea 1.24.0 ends at database version 321
+		newMigration(321, "Migrate commit id of pull requests code review comment", v1_25.MigrateCommitIDOfPullRequestCodeReviewComment),
 	}
 	return preparedMigrations
 }

models/migrations/v1_25/v321.go

@@ -0,0 +1,14 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1_25
+
+import (
+	"xorm.io/xorm"
+)
+
+// MigrateCommitIDOfPullRequestCodeReviewComment this will be almost right before comment on the special commit of the pull request
+func MigrateCommitIDOfPullRequestCodeReviewComment(x *xorm.Engine) error {
+	_, err := x.Exec("UPDATE comment SET commit_sha = (select merge_base from pull_request WHERE issue_id = comment.issue_id) WHERE line < 0")
+	return err
+}