Bonjour,

Je développe un formulaire d'inscription pour que des salles de cinéma s'inscrivent avec leur adresse email, mot de passe et le nombre de salles qu'elles possèdent, en utilisant Symfony 7.

Cependant, lorsque je m'inscris et que j'indique, par exemple, 5 salles, je ne retrouve pas les 5 salles enregistrées dans la base de données. Seulement le nombre "5" apparaît dans le champ du numéro de salle.

Voila mon RegisterControlleur.php

public function register(Request $request, UserPasswordHasherInterface $userPasswordHasher, EntityManagerInterface $entityManager): Response
    {
        $user = new User();
        ///////////////////////////////////////
        $salle = new Salle(); // instance de entity salle 
        $user->addSalle($salle);   // User permet de faire 
        ///////////////////////////////////////
        $form = $this->createForm(RegistrationFormType::class, $user);
        $form->handleRequest($request);

        if ($form->isSubmitted() && $form->isValid()) {
            // encode the plain password
            $user->setPassword(
                $userPasswordHasher->hashPassword(
                    $user,
                    $form->get('plainPassword')->getData()
                )
            );
            $user->setRoles(['ROLE_CINEMA']); // Rolecinema


            /********************************************** */
            $selectedSalleCount = $form->get('salle')->getData()->count();

            for ($i = 0; $i < $selectedSalleCount; $i++) {
                $salle = new Salle();
                $user->addSalle($salle);
            }
            /*********************************************** */
            $entityManager->persist($user);
            $entityManager->flush();

            // generate a signed url and email it to the user
            $this->emailVerifier->sendEmailConfirmation(
                'app_verify_email',
                $user,
                (new TemplatedEmail())
                    ->from(new Address('cinema@noreply.fr', 'xavier'))
                    ->to($user->getEmail())
                    ->subject('Please Confirm your Email')
                    ->htmlTemplate('registration/confirmation_email.html.twig')
            );
            // do anything else you need here, like send an email

            return $this->redirectToRoute('app_home');
        }

        return $this->render('registration/register.html.twig', [
            'registrationForm' => $form,
        ]);
    }

Voila mon FormtypeRegister

public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add('email')
            ->add('agreeTerms', CheckboxType::class, [
                'mapped' => false,
                'constraints' => [
                    new IsTrue([
                        'message' => 'You should agree to our terms.',
                    ]),
                ],
            ])
            ->add('plainPassword', PasswordType::class, [
                // instead of being set onto the object directly,
                // this is read and encoded in the controller
                'mapped' => false,
                'attr' => ['autocomplete' => 'new-password'],
                'constraints' => [
                    new NotBlank([
                        'message' => 'Please enter a password',
                    ]),
                    new Length([
                        'min' => 6,
                        'minMessage' => 'Your password should be at least {{ limit }} characters',
                        // max length allowed by Symfony for security reasons
                        'max' => 4096,
                    ]),
                ],
            ]);  

            $builder->add('salle', CollectionType::class, [
                'entry_type' => SalleType::class,

            ]);
    }