public function afterSave($event)
 {
     $attributes = Yii::$app->request->post('MetaTag', Yii::$app->request->get('MetaTag', null));
     if ($attributes) {
         $model = $this->getModel();
         if (!isset($model)) {
             $model = new MetaTag();
         }
         $attributes['model_id'] = $this->owner->id;
         $attributes['model'] = (new \ReflectionClass($this->owner))->getShortName();
         $model->attributes = $attributes;
         $model->save();
     }
 }