public static function action($plugin_id, $object_name)
 {
     $id = intval($_GET['id']);
     if ($id) {
         $object = new $object_name($plugin_id);
         $object->id->val = $id;
         if ($object->delete()) {
             q2w3_table_func::change_ref_after_del($object->id->col_name, $id);
         }
     }
 }
 public static function action($plugin_id, $object_name)
 {
     $checked = $_POST['checked'];
     if (is_array($checked)) {
         $object = new $object_name($plugin_id);
         foreach ($checked as $id => $no_value) {
             $object->id->val = $id;
             if ($object->delete()) {
                 q2w3_table_func::change_ref_after_del($object->id->col_name, $id);
             }
         }
     }
 }