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FormHelper.php
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/
FormHelper.php
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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\Bundle\FrameworkBundle\Templating\Helper;
use Symfony\Component\Templating\Helper\Helper;
use Symfony\Component\Form\FormRendererInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\Templating\EngineInterface;
use Symfony\Component\Form\Exception\FormException;
use Symfony\Component\Form\Extension\Csrf\CsrfProvider\CsrfProviderInterface;
use Symfony\Component\Form\Extension\Core\View\ChoiceView;
use Symfony\Component\Form\Util\FormUtil;
/**
* FormHelper provides helpers to help display forms.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class FormHelper extends Helper
{
/**
* @var FormRendererInterface
*/
private $renderer;
/**
* @param FormRendererInterface $renderer
*/
public function __construct(FormRendererInterface $renderer)
{
$this->renderer = $renderer;
}
/**
* {@inheritdoc}
*/
public function getName()
{
return 'form';
}
public function isChoiceGroup($label)
{
return $this->renderer->isChoiceGroup($label);
}
public function isChoiceSelected(FormView $view, ChoiceView $choice)
{
return $this->renderer->isChoiceSelected($view, $choice);
}
/**
* Sets a theme for a given view.
*
* The theme format is "<Bundle>:<Controller>".
*
* @param FormView $view A FormView instance
* @param string|array $themes A theme or an array of theme
*/
public function setTheme(FormView $view, $themes)
{
$this->renderer->setTheme($view, $themes);
}
/**
* Renders the HTML enctype in the form tag, if necessary.
*
* Example usage templates:
*
* <form action="..." method="post" <?php echo $view['form']->enctype() ?>>
*
* @param FormView $view The view for which to render the encoding type
*
* @return string The HTML markup
*/
public function enctype(FormView $view)
{
return $this->renderer->renderEnctype($view);
}
/**
* Renders the HTML for a given view.
*
* Example usage:
*
* <?php echo view['form']->widget() ?>
*
* You can pass options during the call:
*
* <?php echo view['form']->widget(array('attr' => array('class' => 'foo'))) ?>
*
* <?php echo view['form']->widget(array('separator' => '+++++)) ?>
*
* @param FormView $view The view for which to render the widget
* @param array $variables Additional variables passed to the template
*
* @return string The HTML markup
*/
public function widget(FormView $view, array $variables = array())
{
return $this->renderer->renderWidget($view, $variables);
}
/**
* Renders the entire form field "row".
*
* @param FormView $view The view for which to render the row
* @param array $variables Additional variables passed to the template
*
* @return string The HTML markup
*/
public function row(FormView $view, array $variables = array())
{
return $this->renderer->renderRow($view, $variables);
}
/**
* Renders the label of the given view.
*
* @param FormView $view The view for which to render the label
* @param string $label The label
* @param array $variables Additional variables passed to the template
*
* @return string The HTML markup
*/
public function label(FormView $view, $label = null, array $variables = array())
{
return $this->renderer->renderLabel($view, $label, $variables);
}
/**
* Renders the errors of the given view.
*
* @param FormView $view The view to render the errors for
*
* @return string The HTML markup
*/
public function errors(FormView $view)
{
return $this->renderer->renderErrors($view);
}
/**
* Renders views which have not already been rendered.
*
* @param FormView $view The parent view
* @param array $variables An array of variables
*
* @return string The HTML markup
*/
public function rest(FormView $view, array $variables = array())
{
return $this->renderer->renderRest($view, $variables);
}
/**
* Alias of {@link block()}
*
* @param string $block The name of the block to render.
* @param array $variables The variable to pass to the template.
*
* @return string The HTML markup
*
* @deprecated Deprecated since version 2.1, to be removed in 2.3. Use
* {@link block()} instead.
*/
public function renderBlock($block, array $variables = array())
{
return $this->block($block, $variables);
}
/**
* Renders a block of the template.
*
* @param string $block The name of the block to render.
* @param array $variables The variable to pass to the template.
*
* @return string The HTML markup
*/
public function block($block, array $variables = array())
{
return $this->renderer->renderBlock($block, $variables);
}
/**
* Returns a CSRF token.
*
* Use this helper for CSRF protection without the overhead of creating a
* form.
*
* <code>
* echo $view['form']->csrfToken('rm_user_'.$user->getId());
* </code>
*
* Check the token in your action using the same intention.
*
* <code>
* $csrfProvider = $this->get('form.csrf_provider');
* if (!$csrfProvider->isCsrfTokenValid('rm_user_'.$user->getId(), $token)) {
* throw new \RuntimeException('CSRF attack detected.');
* }
* </code>
*
* @param string $intention The intention of the protected action
*
* @return string A CSRF token
*
* @throws \BadMethodCallException When no CSRF provider was injected in the constructor.
*/
public function csrfToken($intention)
{
return $this->renderer->renderCsrfToken($intention);
}
public function humanize($text)
{
return $this->renderer->humanize($text);
}
}