Symfony 4.2 Form is not submitted or not valid - symfony

Question

I followed the symfony 4.2 documentation, but it seems the form is not submitted...
I spent my whole sunday, but it seems a secret how does it works, in the logs I do not see any errors.
So start it. the config contains these settings:
framework:
validation:
email_validation_mode: 'html5'
enable_annotations: true
Here the entity:
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* #ORM\Entity(repositoryClass="App\Repository\FeedbackRepository")
*/
class Feedback extends BaseEntity
{
/**
* #ORM\Id()
* #ORM\GeneratedValue()
* #ORM\Column(type="integer")
*/
private $id;
/**
* #ORM\Column(type="string", length=255)
* #Assert\Type("string")
* #Assert\NotBlank
*/
private $name;
/**
* #ORM\Column(type="string", length=255)
* #Assert\Type("string")
* #Assert\Email()
* #Assert\NotBlank
*/
private $email;
AS you can see I use the Assert annotations for the validations.
So here the formtype:
class FeedbackType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', TextType::class)
->add('email', EmailType::class)
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'data_class' => Feedback::class,
// enable/disable CSRF protection for this form
'csrf_protection' => true,
// the name of the hidden HTML field that stores the token
'csrf_field_name' => '_token',
]);
}
}
Maybe the problem with the token, but I do not know exactly.
Now let see the view:
<form action="{{ path('feedback') }}" type="POST">
<div class="input-field">
<i class="material-icons prefix">account_circle</i>
{{ form_label(feedback.name) }}
{{ form_widget(feedback.name) }}
</div>
<div class="input-field">
<i class="material-icons prefix">email</i>
{{ form_label(feedback.email) }}
{{ form_widget(feedback.email) }}
</div>
{{ form_widget(feedback._token) }}
Next, here the controller which get the request.
/**
* #Route("/feedback", name="feedback", methods="GET|POST")
*/
public function feedbackFormAction(Request $request, EntityManagerInterface $entityManager): JsonResponse
{
$feedbackForm = new Feedback();
$form = $this->createForm(FeedbackType::class, $feedbackForm);
$form->handleRequest($request);
dump($request);
dump($feedbackForm);
if ($form->isSubmitted() && $form->isValid()) {
$entityManager->persist($feedbackForm);
$entityManager->flush();
} else {
$errors = $this->getErrorsFromForm($form);
dump($form);die;
return new JsonResponse(['data' => ['result' => 'failed', 'errors' => $errors]]);
}
return new JsonResponse(['data' => ['result' => 'success']]);
}
The errors give me an empty array in Json format.
If I check the dump($feedbackForm) I see that the submitted property is false. and the modeldata, viewdata and normdata values are null... But how is this possible?
Dumping request:
query: ParameterBag {#16 ▼
#parameters: array:1 [▼
"feedback" => array:11 [▼
"name" => "a"
"email" => "a#a.a"
"_token" => "NJHBv7NpwYlugFcU-sE0qoBEQkS38yhxOjbklkHu8j0"
]
]
}
I think, this is correct.

Answer 1

You have not loaded the form data into the entity and trying to persist an empty new Feedback.
if ($form->isSubmitted() && $form->isValid()) {
// add line below
$feedbackForm = $form->getData();
$entityManager->persist($feedbackForm);
$entityManager->flush();
} else { ...
Read carefully https://symfony.com/doc/current/forms.html#handling-form-submissions

Answer 2

Did you create your FeedbackType, Controller action and the form view manually?
Remove all and use
php bin/console make:crud Feedback
This will generate operational files :-)
I think that using form_row is apropriate that using form_widget
Your Controller
/**
* #Route("/feedback", name="feedback", methods="GET|POST")
*/
public function feedbackFormAction(Request $request, EntityManagerInterface $entityManager): JsonResponse
{
$feedback = new Feedback();
$form = $this->createForm(FeedbackType::class, $feedback);
$form->handleRequest($request);
if ($form->isSubmitted()) {
if ($form->isValid()) {
$entityManager->persist($feedbackForm);
$entityManager->flush();
return new JsonResponse(['data' => ['result' => 'success']]);
}
else {
$errors = $this->getErrorsFromForm($form);
return new JsonResponse(['data' => ['result' => 'failed', 'errors' => $errors]]);
}
}
return $this->render('path_to_your_feed_back.html.twig', [
'feedback' => $feedback,
'form' => $form->createView(),
]);
}
Your form.html.twig
{{ form_start(form, {'method': 'POST', 'attr' : {'class' : 'formFeedback'}}) }}
<div class="input-field">
<i class="material-icons prefix">account_circle</i>
{{ form_row(form.name) }}
</div>
<div class="input-field">
<i class="material-icons prefix">email</i>
{{ form_row(form.email) }}
</div>
{{ form_end(form) }}