public function actionManage($menu_id)
 {
     $menu = Menu::model()->findByPk($menu_id);
     if (!$menu) {
         $this->pageNotFound();
     }
     $root = MenuSection::model()->roots()->find('menu_id = ' . $menu_id);
     if (!$root) {
         $root = new MenuSection();
         $root->menu_id = $menu->id;
         $root->title = $menu->name . '::корень';
         $root->saveNode();
     }
     $model = new MenuSection('search');
     $model->unsetAttributes();
     if (isset($_GET['MenuSection'])) {
         $model->attributes = $_GET['MenuSection'];
     }
     $this->render('manage', ['menu' => $menu, 'model' => $model, 'root' => $root]);
 }