public function actionLogin()
 {
     if (!\Yii::$app->user->isGuest) {
         return $this->goHome();
     }
     $model = new LoginForm();
     if ($model->load(Yii::$app->request->post()) && $model->login()) {
         return $this->goBack();
     }
     return $this->render('login', ['model' => $model]);
 }
 public function actionLogin()
 {
     $model = new LoginForm();
     $model->load(Yii::$app->request->post());
     if ($model->validate()) {
         if ($model->validatePassword()) {
             $model->login();
             $this->redirect('/register/index');
         }
     }
     return $this->render('login', ['model' => $model]);
 }