public function registerAction(Application $app, Request $request)
 {
     $builder = $app->form();
     $builder->add('email', EmailType::class)->add('password', RepeatedType::class, ['type' => PasswordType::class, 'first_options' => ['label' => 'Password'], 'second_options' => ['label' => 'Repeat Password']])->add('register', SubmitType::class);
     $form = $builder->getForm();
     $form->handleRequest($request);
     if ($form->isSubmitted() && $form->isValid()) {
         $userInfo = $form->getData();
         $newUser = new User();
         $password = $app->encodePassword($newUser, $userInfo['password']);
         $newUser->setUsername($userInfo['email']);
         $newUser->setPassword($password);
         $newUser->setEnabled(true);
         $newUser->setAccountNonExpired(true);
         $newUser->setAccountNonLocked(true);
         $newUser->setCredentialsNonExpired(true);
         $newUser->setRoles(['ROLE_USER']);
         $app['em']->persist($newUser);
         $app['em']->flush();
         return $app->redirect($app->url('login'));
     }
     return $app->render('authentication/register.html.twig', ['form' => $form->createView()]);
 }