public function actionUp($id)
    {
        $product = Product::findOne($id);
        if (\Yii::$app->user->can('updateProduct', ['productOwner' => $product->owner])) {
            if (!empty($product)) {
                /**
                 * @var $product PositionBehavior
                 */
                $product->movePrev();
                $this->trigger(self::EVENT_AFTER_EDIT_PRODUCT, new ProductEvent(['id' => $id]));
            }
            return $this->redirect(\Yii::$app->request->referrer);
        } else throw new ForbiddenHttpException(\Yii::t('shop', 'You have not permission to do this action.'));
    }