private function create($tud)
 {
     $person = Person::createPerson($tud);
     if (!$person) {
         // TODO: Should never happen
         throw new ErrorException("You should fix this!");
     }
     \Yii::$app->user->login($person);
     if ($person->isStudent()) {
         return \yii::$app->response->redirect(Url::to(['/student/profile/preferences']));
     } elseif ($person->isEmployee()) {
         return \yii::$app->response->redirect(Url::to(['/employee/profile/preferences']));
     }
 }