public function actionSignupAuth($auth_id, $service)
 {
     $modeluser = new LoginForm();
     $modelauth = new UsersAuth();
     if ($modeluser->load(Yii::$app->request->post()) && $modelauth->load(['UsersAuth' => ['auth_id' => $auth_id, 'service' => $service]]) && $modeluser->login() && $modelauth->signup()) {
         return $this->goBack();
     }
     return $this->render('signupAuth', ['model' => $modeluser]);
 }