Resolve "Falsche Migrationsnummer, Migration ignoriert das Tabellenschema"

Closes #3669

Merge request studip/studip!2542

db/migrations/5.5.14_cleanup_cw_tasks.php → db/migrations/5.1.53_cleanup_cw_tasks.php

@@ -11,7 +11,7 @@ final class CleanupCwTasks extends Migration
     {
         DBManager::get()->exec('
             DELETE FROM `cw_tasks`
-            WHERE `solver_type` = "user"
+            WHERE `solver_type` = "autor"
               AND `solver_id` NOT IN (SELECT `user_id` FROM `auth_user_md5`)'
         );
         DBManager::get()->exec('

db/migrations/5.5.14_cleanup_cw_tasks_placeholder.php

+<?php
+/**
+ * This migration only exists as a placeholder for the original
+ * migration 5.5.14 which has been renumbered to 5.1.53 as it was
+ * downported.
+ * As everything has already been done in 5.1.53, nothing happens here.
+ *
+ * @see https://gitlab.studip.de/studip/studip/-/issues/3669
+ */
+
+final class CleanupCwTasksPlaceholder extends Migration
+{
+    public function description()
+    {
+        return 'empty placeholder for former migration with wrong number -> see 5.1.53';
+    }
+}

lib/classes/UserManagement.class.php

@@ -990,7 +990,7 @@ class UserManagement
         \Courseware\UserProgress::deleteBySQL('user_id = ?', [$this->user_data['auth_user_md5.user_id']]);
         \Courseware\Bookmark::deleteBySQL('user_id = ?', [$this->user_data['auth_user_md5.user_id']]);
         \Courseware\Task::deleteBySQL(
-            '`solver_id` = ? AND `solver_type`= "user"',
+            '`solver_id` = ? AND `solver_type`= "autor"',
             [$this->user_data['auth_user_md5.user_id']]
         );
         // delete courseware elements in courses of this user