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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form;
use Symfony\Component\Form\Extension\Core\CoreExtension;
/**
* Entry point of the Form component.
*
* Use this class to conveniently create new form factories:
*
* <code>
* use Symfony\Component\Form\Forms;
*
* $formFactory = Forms::createFormFactory();
*
* $form = $formFactory->createBuilder()
* ->add('firstName', 'text')
* ->add('lastName', 'text')
* ->add('age', 'integer')
* ->add('gender', 'choice', array(
* 'choices' => array('m' => 'Male', 'f' => 'Female'),
* ))
* ->getForm();
* </code>
*
* You can also add custom extensions to the form factory:
*
* <code>
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new AcmeExtension())
* ->getFormFactory();
* </code>
*
* If you create custom form types or type extensions, it is
* generally recommended to create your own extensions that lazily
* load these types and type extensions. In projects where performance
* does not matter that much, you can also pass them directly to the
* form factory:
*
* <code>
* $formFactory = Forms::createFormFactoryBuilder()
* ->addType(new PersonType())
* ->addType(new PhoneNumberType())
* ->addTypeExtension(new FormTypeHelpTextExtension())
* ->getFormFactory();
* </code>
*
* Support for CSRF protection is provided by the CsrfExtension.
* This extension needs a CSRF provider with a strong secret
* (e.g. a 20 character long random string). The default
* implementation for this is DefaultCsrfProvider:
*
* <code>
* use Symfony\Component\Form\Extension\Csrf\CsrfExtension;
* use Symfony\Component\Form\Extension\Csrf\CsrfProvider\DefaultCsrfProvider;
*
* $secret = 'V8a5Z97e...';
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new CsrfExtension(new DefaultCsrfProvider($secret)))
* ->getFormFactory();
* </code>
*
* Support for the HttpFoundation is provided by the
* HttpFoundationExtension. You are also advised to load the CSRF
* extension with the driver for HttpFoundation's Session class:
*
* <code>
* use Symfony\Component\HttpFoundation\Session\Session;
* use Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationExtension;
* use Symfony\Component\Form\Extension\Csrf\CsrfExtension;
* use Symfony\Component\Form\Extension\Csrf\CsrfProvider\SessionCsrfProvider;
*
* $session = new Session();
* $secret = 'V8a5Z97e...';
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new HttpFoundationExtension())
* ->addExtension(new CsrfExtension(new SessionCsrfProvider($session, $secret)))
* ->getFormFactory();
* </code>
*
* Support for the Validator component is provided by ValidatorExtension.
* This extension needs a validator object to function properly:
*
* <code>
* use Symfony\Component\Validator\Validation;
* use Symfony\Component\Form\Extension\Validator\ValidatorExtension;
*
* $validator = Validation::createValidator();
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new ValidatorExtension($validator))
* ->getFormFactory();
* </code>
*
* Support for the Templating component is provided by TemplatingExtension.
* This extension needs a PhpEngine object for rendering forms. As second
* argument you should pass the names of the default themes. Here is an
* example for using the default layout with "<div>" tags:
*
* <code>
* use Symfony\Component\Form\Extension\Templating\TemplatingExtension;
*
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new TemplatingExtension($engine, null, array(
* 'FrameworkBundle:Form',
* )))
* ->getFormFactory();
* </code>
*
* The next example shows how to include the "<table>" layout:
*
* <code>
* use Symfony\Component\Form\Extension\Templating\TemplatingExtension;
*
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new TemplatingExtension($engine, null, array(
* 'FrameworkBundle:Form',
* 'FrameworkBundle:FormTable',
* )))
* ->getFormFactory();
* </code>
*
* If you also loaded the CsrfExtension, you should pass the CSRF provider
* to the extension so that you can render CSRF tokens in your templates
* more easily:
*
* <code>
* use Symfony\Component\Form\Extension\Csrf\CsrfExtension;
* use Symfony\Component\Form\Extension\Csrf\CsrfProvider\DefaultCsrfProvider;
* use Symfony\Component\Form\Extension\Templating\TemplatingExtension;
*
*
* $secret = 'V8a5Z97e...';
* $csrfProvider = new DefaultCsrfProvider($secret);
* $formFactory = Forms::createFormFactoryBuilder()
* ->addExtension(new CsrfExtension($csrfProvider))
* ->addExtension(new TemplatingExtension($engine, $csrfProvider, array(
* 'FrameworkBundle:Form',
* )))
* ->getFormFactory();
* </code>
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
final class Forms
{
/**
* Creates a form factory with the default configuration.
*
* @return FormFactoryInterface The form factory.
*/
public static function createFormFactory()
{
return self::createFormFactoryBuilder()->getFormFactory();
}
/**
* Creates a form factory builder with the default configuration.
*
* @return FormFactoryBuilderInterface The form factory builder.
*/
public static function createFormFactoryBuilder()
{
$builder = new FormFactoryBuilder();
$builder->addExtension(new CoreExtension());
return $builder;
}
/**
* This class cannot be instantiated.
*/
private function __construct()
{
}
}