/**
  * Экшен '/admin/catalog/products' - список товаров
  * @return string
  * @throws InvalidParamException
  */
 public function actionProducts()
 {
     $filterModel = new Product();
     $filterModel->scenario = 'search';
     $filterModel->load(Yii::$app->request->get());
     $dataProvider = $filterModel->search();
     if ($filterModel->parents === 0) {
         $category = new Category();
         $category->title = 'Все товары';
     } else {
         $category = Category::findOne($filterModel->parents);
     }
     return $this->render('products', ['category' => $category, 'dataProvider' => $dataProvider, 'filterModel' => $filterModel]);
 }