public function actionLogin()
 {
     if (!\Yii::$app->user->isGuest) {
         return $this->goHome();
     }
     $model = new LoginForm();
     if ($model->load(Yii::$app->request->post()) && $model->login()) {
         $a = Doclad::getAllList(['doc_us_id' => Yii::$app->user->getId()]);
         return $this->redirect([empty($a) ? 'register' : 'list']);
     }
     return $this->render('//site/login', ['model' => $model]);
 }