Symfony 2.8 : Rendering Controller (Form Errors Not Showing UP)

Question

I have an issue trying to render a controller which returns a template with formView.

I understood about the sub-request, but I am having difficult time to show any kind of errors.

I think the problem is that after it sees the form is invalid it redirectsToRoute and it looses the POST Request.

If I don't say redirectTo it just renders the view.

base.html.twig

 {{ render(controller('AppBundle:Utility:renderSignUpWizard'), {request: app.request}) }}

Utility Controller

   /**
     * @Route("/registration/wizard/", name="registration.wizard")
     */
    public function renderSignUpWizardAction(Request $request)
    {
        /** @var $user User */
        $user = $this->getUser();

        $form = $this->createForm(SignUpWizardType::class, $user);

        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid())
        {
            // save changes to user
            $this->persistAndSave($user);

            // redirect to profile
            return $this->redirectToRoute('profile');
        }
        else if($form->isSubmitted() && !$form->isValid())
        {
            return $this->redirectToRoute('home');
        }

        return $this->render('partials/signup-wizard.html.twig', array
        (
            'form' => $form->createView(),
        ));
    }

Answer 1

If you could show the twig file where you put the form I could have given a clearer answer. Check the twig file you tell your controller to render and add the following:

Simple way to generate your form(doesn't include errors):

{{ form_start(form) }}
{{ form_widget(form) }
{{ form_end(form) }}

Add:

{{ form_errors(form) }}

if you want erors for a specific field:

{{ form_errors(form.name) }}