John Davidson

Message:

Im beginner in Symfony :)

Ive created a website with Symfony 6.And i have a contact form page.
This form work great but, after submit, if i reload the page, this form submit again.

Here, the ContactController

#[Route('/contact', name: 'contact')]

public function contact(ManagerRegistry $doctrine, Request $request, MailerInterface $mailer): Response

{



    $form = $this->createForm(ContactType::class);

    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {

        $email = (new Email())

            ->to("[email protected]")

            ->from($form->get("email")->getData())

            ->subject($form->get("title")->getData())

            ->text('Sending emails is fun again!')

            ->html('<p>See Twig integration for better HTML integration!</p>');



        try {

            $mailer->send($email);

            $resultMail = "Le mail est envoyé ! Pensez à consulter vos spams.";

            $this->addFlash(

                "success",

                "Votre message est bien envoyé."

            );

        } catch (TransportExceptionInterface $e) {

            // some error prevented the email sending; display an

            // error message or try to resend the message

            $resultMail = "Il y a eu une erreur lors de l'envoi de l'email.";

            $error = new Contact;

            $error->setEmail($form->get("email")->getData());

            $error->setTitle($form->get("title")->getData());

            $error->setMessage($form->get("message")->getData());

            $error->setDate(new DateTime());

            $error->setError($e);



            $em = $doctrine->getManager();

            $em->persist($error);

            $em->flush();

            $this->addFlash(

                "error",

                "Une erreur s'est produite lors de l'envoi de votre message."

            );

        }

    }



    return $this->render('contact/contact.html.twig', [

        "pageTitle" => "Contact",

        "ssTitle" => "Vous avez besoin de mes services ?",

        "contact_form" => $form->createView()

    ]);

}

How to fix it? And This is possible to redirect to contact anchor after submit ? (/contact#form) ?

Regards

---

My Answer:
php
namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
use App\Form\ContactType;

class ContactController extends AbstractController
{
/**
* @Route("/contact", name="contact")
*/
public function contact(Request $request): Response
{
$form = $this->createForm(ContactType::class);
$form->handleRequest($request);

if ($form->isSubmitted() && $form->isValid()) {
// Process form data here
// Redirect to a success page or do something else
}

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


To prevent the form from being submitted again when the page is refreshed, you can use the Post/Redirect/Get (PRG) pattern. After processing the form data, you can redirect the user to another page using the `redirectToRoute` method. This way, if the user refreshes the page, the form data will not be resubmitted.

Here's an example of how you can modify the controller to implement the PRG pattern:

php
if ($form->isSubmitted() && $form->isValid()) {
// Process form data here
// Redirect to a success page
return $this->redirectToRoute('success_page');
}


In this example, `success_page` is the name of the route to the success page. You can define this route in your routes configuration file (`config/routes.yaml`) and create a corresponding controller action to handle the success page.

By using the PRG pattern, you can prevent the form from being resubmitted when the page is refreshed.