vendor/symfony/form/Symfony/Component/Form/Extension/Core/EventListener/FixCheckboxInputListener.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Form\Extension\Core\EventListener;
  13
  14 use Symfony\Component\Form\FormEvents;
  15 use Symfony\Component\Form\FormEvent;
  16 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  17 use Symfony\Component\Form\Extension\Core\ChoiceList\ChoiceListInterface;
  18
  19 /**
  20  * Takes care of converting the input from a list of checkboxes to a correctly
  21  * indexed array.
  22  *
  23  * @author Bernhard Schussek <bschussek@gmail.com>
  24  */
  25 class FixCheckboxInputListener implements EventSubscriberInterface
  26 {
  27     private $choiceList;
  28
  29     /**
  30      * Constructor.
  31      *
  32      * @param ChoiceListInterface $choiceList
  33      */
  34     public function __construct(ChoiceListInterface $choiceList)
  35     {
  36         $this->choiceList = $choiceList;
  37     }
  38
  39     public function preSubmit(FormEvent $event)
  40     {
  41         $values = (array) $event->getData();
  42         $indices = $this->choiceList->getIndicesForValues($values);
  43
  44         $event->setData(count($indices) > 0 ? array_combine($indices, $values) : array());
  45     }
  46
  47     /**
  48      * Alias of {@link preSubmit()}.
  49      *
  50      * @deprecated Deprecated since version 2.3, to be removed in 3.0. Use
  51      *             {@link preSubmit()} instead.
  52      */
  53     public function preBind(FormEvent $event)
  54     {
  55         $this->preSubmit($event);
  56     }
  57
  58     public static function getSubscribedEvents()
  59     {
  60         return array(FormEvents::PRE_SUBMIT => 'preSubmit');
  61     }
  62 }