Rendering multiple forms on same page with Symfony 3 - php

Question

I'd like to show a login and a registration form on the same page. However it seems that we cannot render the same template with different form variables in different two actions in a controller.
Here is what I mean;
class SecurityController extends Controller {
/**
* #Route("/", name="login")
*/
public function loginAction(Request $request)
{
//Check if the user is already authenticated
if($this->container->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_FULLY')) {
return $this->redirect($this->generateUrl('dashboard'));
}
$authenticationUtils = $this->get('security.authentication_utils');
// get the error if there is one
$error = $authenticationUtils->getLastAuthenticationError();
// last username entered by the user
$lastUsername = $authenticationUtils->getLastUsername();
$this->addFlash(
'welcome',
'Welcome back!'
);
return $this->render(
'::landing.html.twig',
array(
// last username entered by the user
'last_username' => $lastUsername,
'error' => $error,
)
);
$registrationform = $this->get('form.factory')->createNamedBuilder('registrationform', UserType::class);
}
/**
* #Route("/register", name="register")
*/
public function registerAction(Request $request)
{
//Check authentication
if($this->container->get('security.authorization_checker')->isGranted('IS_AUTHENTICATED_FULLY')) {
return $this->redirect($this->generateUrl('dashboard'));
}
// get the authentication utils
$authenticationUtils = $this->get('security.authentication_utils');
// get the login error if there is one
$error = $authenticationUtils->getLastAuthenticationError();
// last username entered by the user
$lastUsername = $authenticationUtils->getLastUsername();
// build the form
$user = new User();
$form = $this->createForm(UserType::class, $user);
// handle the submit (will only happen on POST)
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$user->setRoles(array('ROLE_USER'));
// Encode the password (you could also do this via Doctrine listener)
$password = $this->get('security.password_encoder')
->encodePassword($user, $user->getPlainPassword());
$user->setPassword($password);
// save the User!
$em = $this->getDoctrine()->getManager();
$em->persist($user);
$em->flush();
$token = new UsernamePasswordToken($user, null, 'main', $user->getRoles());
$this->get('security.token_storage')->setToken($token);
$this->get('session')->set('_security_main', serialize($token));
// ... do any other work - like sending them an email, etc
// maybe set a "flash" success message for the user
$this->addFlash(
'success',
'Please complete your profile now.'
);
$message = \Swift_Message::newInstance()
->setSubject('You have successfully signed up!')
->setFrom('no-reply#kampweb.com')
->setTo($user->getUsername())
->setBody($this->renderView(
':emails:registration.html.twig'),'text/html');
$this->get('mailer')->send($message);
return $this->redirectToRoute('update');
} else{
$errors = $this->get('validator')->validate( $user );
}
return $this->render(
'::landing.html.twig',
array( 'form' => $form->createView(),
'last_username' => $lastUsername,
'error' => $error,
)
);
}
}
Above I have my login and registration action. I'd like to pass the 'form' variable to the same twig template that I render with login action. When I try to do that I'm getting the following exception.
Variable "form" does not exist in ::landing.html.twig at line 50
500 Internal Server Error - Twig_Error_Runtime

Answer 1

I would do it like this
2 twig files -
login.html.twig and register.html.twig - Every file render by himself the action
now the third twig file called baseLogin.html.twig
in this file, I render the two files (login and register) by calling controller
For example
baseLogin.html.twig
<div>
{{ render(controller('UserBundle:Security:login')) }}
</div>
<div>
{{ render(controller('UserBundle:Registration:register')) }}
</div>