Built-in forms¶

Multiple forms on the same page¶

Symfony’s form component doesn’t allow the same form type to be created twice; they will be considered to be the same form. This is a problem if we want to use multiple forms on the same page.

For example, we might have a newsletter form at the bottom of every page, but also have a beta list signup page that includes a form too. It’d be great if both of these could use the EmailOnlyType.

Use the create method of the perform_mailing_list.form_factory service to create multiple forms of the same type that submit to different urls. They will be given different names, so Symfony will be aware of the difference.

<?php

/** @var Perform\MailingListBundle\Form\UniqueFormFactory $factory */
$factory = $container->get('perform_mailing_list.form_factory');

$newsletterForm = $factory->create('email_only', '/mailing-lists/newsletter');
$betaForm = $factory->create('email_only', '/mailing-lists/beta');

You can also use the perform_mailing_list_form twig helper to get an instance of these forms in your templates:

<h4>Subscribe to our newsletter!</h4>
{% set form = perform_mailing_list_form('email_only', '/mailing-lists/newsletter') %}
{{form_start(form)}}
{{form_row(form.email}}
<input name="signup" type="submit" class="btn btn-primary" value="Subscribe" />
{{form_end(form)}}