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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\Extension\Core\Type; use Symfony\Component\Form\AbstractType; use Symfony\Component\Form\FormBuilderInterface; use Symfony\Component\Form\FormInterface; use Symfony\Component\Form\Extension\Core\DataTransformer\BooleanToStringTransformer; use Symfony\Component\Form\FormView; use Symfony\Component\OptionsResolver\OptionsResolverInterface; class CheckboxType extends AbstractType { /** * {@inheritdoc} */ public function buildForm(FormBuilderInterface $builder, array $options) { // Unlike in other types, where the data is NULL by default, it // needs to be a Boolean here. setData(null) is not acceptable // for checkboxes and radio buttons (unless a custom model // transformer handles this case). // We cannot solve this case via overriding the "data" option, because // doing so also calls setDataLocked(true). $builder->setData(isset($options['data']) ? $options['data'] : false); $builder->addViewTransformer(new BooleanToStringTransformer($options['value'])); } /** * {@inheritdoc} */ public function buildView(FormView $view, FormInterface $form, array $options) { $view->vars = array_replace($view->vars, array( 'value' => $options['value'], 'checked' => null !== $form->getViewData(), )); } /** * {@inheritdoc} */ public function setDefaultOptions(OptionsResolverInterface $resolver) { $emptyData = function (FormInterface $form, $viewData) { return $viewData; }; $resolver->setDefaults(array( 'value' => '1', 'empty_data' => $emptyData, 'compound' => false, )); } /** * {@inheritdoc} */ public function getName() { return 'checkbox'; } }