public static function delete_comments_topic_module($module_id, $id_in_module) { $id_topic = CommentsTopicDAO::get_id_topic_module($module_id, $id_in_module); CommentsDAO::delete_comments_by_topic($id_topic); CommentsTopicDAO::delete_topic_module($module_id, $id_in_module); self::regenerate_cache(); }