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How to Change the Action and Method of a Form
How to Change the Action and Method of a Form¶
By default, a form will be submitted via an HTTP POST request to the same URL under which the form was rendered. Sometimes you want to change these parameters. You can do so in a few different ways.
If you use the FormBuilder
to build your
form, you can use setAction()
and setMethod()
:
- Framework Use
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// src/Controller/DefaultController.php namespace App\Controller; use Symfony\Bundle\FrameworkBundle\Controller\AbstractController; use Symfony\Component\Form\Extension\Core\Type\DateType; use Symfony\Component\Form\Extension\Core\Type\SubmitType; use Symfony\Component\Form\Extension\Core\Type\TextType; class DefaultController extends AbstractController { public function new() { // ... $form = $this->createFormBuilder($task) ->setAction($this->generateUrl('target_route')) ->setMethod('GET') ->add('task', TextType::class) ->add('dueDate', DateType::class) ->add('save', SubmitType::class) ->getForm(); // ... } }
- Standalone Use
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use Symfony\Component\Form\Forms; use Symfony\Component\Form\Extension\Core\Type\DateType; use Symfony\Component\Form\Extension\Core\Type\FormType; use Symfony\Component\Form\Extension\Core\Type\SubmitType; use Symfony\Component\Form\Extension\Core\Type\TextType; // ... $formFactoryBuilder = Forms::createFormFactoryBuilder(); // Form factory builder configuration ... $formFactory = $formFactoryBuilder->getFormFactory(); $form = $formFactory->createBuilder(FormType::class, $task) ->setAction('...') ->setMethod('GET') ->add('task', TextType::class) ->add('dueDate', DateType::class) ->add('save', SubmitType::class) ->getForm();
Note
This example assumes that you've created a route called target_route
that points to the controller that processes the form.
When using a form type class, you can pass the action and method as form options:
- Framework Use
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// src/Controller/DefaultController.php namespace App\Controller; use App\Form\TaskType; use Symfony\Bundle\FrameworkBundle\Controller\AbstractController; class DefaultController extends AbstractController { public function new() { // ... $form = $this->createForm(TaskType::class, $task, [ 'action' => $this->generateUrl('target_route'), 'method' => 'GET', ]); // ... } }
- Standalone Use
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use App\Form\TaskType; use Symfony\Component\Form\Forms; $formFactoryBuilder = Forms::createFormFactoryBuilder(); // Form factory builder configuration ... $formFactory = $formFactoryBuilder->getFormFactory(); $form = $formFactory->create(TaskType::class, $task, [ 'action' => '...', 'method' => 'GET', ]);
Finally, you can override the action and method in the template by passing them
to the form()
or the form_start()
helper functions:
1 2 | {# templates/default/new.html.twig #}
{{ form_start(form, {'action': path('target_route'), 'method': 'GET'}) }}
|
Note
If the form's method is not GET or POST, but PUT, PATCH or DELETE, Symfony
will insert a hidden field with the name _method
that stores this method.
The form will be submitted in a normal POST request, but Symfony's router
is capable of detecting the _method
parameter and will interpret it as
a PUT, PATCH or DELETE request. See the http_method_override
option.
This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.