public function actionImportXml(){
       $model = new ImportXml();
       if (Yii::$app->request->isPost) {
          $model->file = UploadedFile::getInstanceByName('importFile');
          $errors = [];
          $updateCount =0;
          $newCount =0;
          $errorCount = 0;
          if ($model->validate() && $models =$model->upload()) {
              $items = ArrayHelper::index(Item::find()->all(), 'id');
              $product = new Item();
              foreach($models as $key=>$value){
                  $value['master_id'] = ($value['master_id']==0)? null :$value['master_id'];
                  $value['photo_album_id'] = ($value['photo_album_id']==0)? null :$value['photo_album_id'];
                  $value['brand_id'] = ($value['brand_id']==0)? null :$value['brand_id'];
                  $value['meta_title'] = ($value['meta_title']=='')? null :$value['meta_title'];
                  $value['meta_description'] = ($value['meta_description']=='')? null :$value['meta_description'];
                  $value['meta_keywords'] = ($value['meta_keywords']=='')? null :$value['meta_keywords'];
                try{
                   if(array_key_exists($value['id'], $items)){ //обновление
                       $product = $items[$value['id']];
                       $product->attributes=$value;
                       if($product->validate()){
                          $product->save(false);
                          $updateCount++;
                      } else{
                         $errorCount++;
                         $str = Yii::t('admin', 'When you upgrade id ') ."= $product->id<br>";
                         foreach ($model->errors as $key=>$value){
                            foreach ($value as $k=>$val){
                               $str .="$key: $val <br>";
                            }
                         }
                         $errors[] = $str;
                      }
                   }
                   else{                                       //добавление нового
                      $product->attributes=$value;
                      $product->id = $value['id'];
                      if($product->validate()){
                         $product->isNewRecord = true;
                         $product->save(false);
                         $newCount++;
                      }
                      else{
                         $errorCount++;
                         $str = Yii::t('admin', 'When you add ') ."$product->articul<br>";
                         foreach ($product->errors as $key=>$value){
                            foreach ($value as $k=>$val){
                                $str .="$key: $val <br>";
                            }
                         }
                         $errors[] = $str;
                      }
                   }
                }catch (Exception $ex){
                   $errorCount++;
                   $message = $ex->errorInfo[2];
                   $errors[] = Yii::t('admin', 'Failed to save: ') . $message;
                }
             }
              $product->attributes =[];
          }
          else{
              $errorCount++;
              $errors[] = Yii::t('admin', 'Error loading file'); //ошибка загрузки файла
          }
       }
       $errorStr = '';
       foreach ($errors as $value){
          $errorStr .= "<p>$value</p>";
       }
       Yii::$app->session->setFlash('load', Yii::t('admin', "Load {newCount} products.<br> Update {updateCount} product. <br> Erorr {errorCount}.<br> {errorStr}",
           ['newCount' => $newCount, 'updateCount' => $updateCount, 'errorCount' => $errorCount, 'errorStr' => $errorStr]));
      $this->redirect(['index'], 301);
    }