/**
  * @return mixed
  */
 public function actionIndex()
 {
     $model = new Domain();
     $model->scenario = 'transfer';
     $transferDataProvider = null;
     if (Yii::$app->request->isPost) {
         $post = Yii::$app->request->post($model->formName(), []);
         if (!empty($post[0]['domains'])) {
             $domains = [];
             foreach (StringHelper::explode($post[0]['domains'], "\n") as $line) {
                 preg_match('/^([a-z0-9][0-9a-z.-]+)(?:[,;\\s]+)(.*)/i', $line, $matches);
                 if ($matches) {
                     $domain = strtolower($matches[1]);
                     $password = $matches[2];
                     $domains[] = compact('domain', 'password');
                 }
             }
             $post = $domains;
         }
         $collection = (new Collection(['model' => $model]))->load($post);
         $models = $collection->getModels();
         foreach ($models as $model) {
             try {
                 Domain::perform('CheckTransfer', $model->getAttributes(['domain', 'password']));
             } catch (ErrorResponseException $e) {
                 $model->addError('password', $e->getMessage());
             }
         }
         Yii::$app->session->setFlash('transferGrid', 1);
         $transferDataProvider = new ArrayDataProvider(['models' => $models]);
     }
     return $this->render('index', ['model' => $model, 'transferDataProvider' => $transferDataProvider]);
 }