public function actionAdd()
 {
     $model = new Rating();
     $id = yii::$app->request->get('id');
     $type = yii::$app->request->get('type');
     $type = !empty($type) ? yii::$app->request->get('type') : 'like';
     $model->UpdateRating($id, $type);
     $item = $model::find()->where(['item' => $id])->one();
     return $this->render('index', ['rating' => $item->rating, 'id_item' => $id]);
 }