/**
  * Обновление модели.
  *
  * @param integer $name parent model name
  * @return mixed
  */
 public function actionTree($name)
 {
     $parent = $this->findParentModel($name);
     $children = $parent->getPermissions()->select('name')->column();
     $actions = AuthItemChild::permissionList();
     return $this->renderPartial('tree', compact('parent', 'children', 'actions'));
 }