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DoctrineType.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\Bridge\Doctrine\Form\Type; use Doctrine\Common\Persistence\ManagerRegistry; use Symfony\Component\Form\Exception\RuntimeException; use Doctrine\Common\Persistence\ObjectManager; use Symfony\Component\Form\FormBuilderInterface; use Symfony\Bridge\Doctrine\Form\ChoiceList\EntityChoiceList; use Symfony\Bridge\Doctrine\Form\ChoiceList\EntityLoaderInterface; use Symfony\Bridge\Doctrine\Form\EventListener\MergeDoctrineCollectionListener; use Symfony\Bridge\Doctrine\Form\DataTransformer\CollectionToArrayTransformer; use Symfony\Component\Form\AbstractType; use Symfony\Component\OptionsResolver\Options; use Symfony\Component\OptionsResolver\OptionsResolverInterface; use Symfony\Component\PropertyAccess\PropertyAccess; use Symfony\Component\PropertyAccess\PropertyAccessorInterface; abstract class DoctrineType extends AbstractType { /** * @var ManagerRegistry */ protected $registry; /** * @var array */ private $choiceListCache = array(); /** * @var PropertyAccessorInterface */ private $propertyAccessor; public function __construct(ManagerRegistry $registry, PropertyAccessorInterface $propertyAccessor = null) { $this->registry = $registry; $this->propertyAccessor = $propertyAccessor ?: PropertyAccess::createPropertyAccessor(); } public function buildForm(FormBuilderInterface $builder, array $options) { if ($options['multiple']) { $builder ->addEventSubscriber(new MergeDoctrineCollectionListener()) ->addViewTransformer(new CollectionToArrayTransformer(), true) ; } } public function setDefaultOptions(OptionsResolverInterface $resolver) { $choiceListCache =& $this->choiceListCache; $registry = $this->registry; $propertyAccessor = $this->propertyAccessor; $type = $this; $loader = function (Options $options) use ($type) { if (null !== $options['query_builder']) { return $type->getLoader($options['em'], $options['query_builder'], $options['class']); } return null; }; $choiceList = function (Options $options) use (&$choiceListCache, $propertyAccessor) { // Support for closures $propertyHash = is_object($options['property']) ? spl_object_hash($options['property']) : $options['property']; $choiceHashes = $options['choices']; // Support for recursive arrays if (is_array($choiceHashes)) { // A second parameter ($key) is passed, so we cannot use // spl_object_hash() directly (which strictly requires // one parameter) array_walk_recursive($choiceHashes, function (&$value) { $value = spl_object_hash($value); }); } elseif ($choiceHashes instanceof \Traversable) { $hashes = array(); foreach ($choiceHashes as $value) { $hashes[] = spl_object_hash($value); } $choiceHashes = $hashes; } $preferredChoiceHashes = $options['preferred_choices']; if (is_array($preferredChoiceHashes)) { array_walk_recursive($preferredChoiceHashes, function (&$value) { $value = spl_object_hash($value); }); } // Support for custom loaders (with query builders) $loaderHash = is_object($options['loader']) ? spl_object_hash($options['loader']) : $options['loader']; // Support for closures $groupByHash = is_object($options['group_by']) ? spl_object_hash($options['group_by']) : $options['group_by']; $hash = hash('sha256', json_encode(array( spl_object_hash($options['em']), $options['class'], $propertyHash, $loaderHash, $choiceHashes, $preferredChoiceHashes, $groupByHash ))); if (!isset($choiceListCache[$hash])) { $choiceListCache[$hash] = new EntityChoiceList( $options['em'], $options['class'], $options['property'], $options['loader'], $options['choices'], $options['preferred_choices'], $options['group_by'], $propertyAccessor ); } return $choiceListCache[$hash]; }; $emNormalizer = function (Options $options, $em) use ($registry) { /* @var ManagerRegistry $registry */ if (null !== $em) { return $registry->getManager($em); } $em = $registry->getManagerForClass($options['class']); if (null === $em) { throw new RuntimeException(sprintf( 'Class "%s" seems not to be a managed Doctrine entity. ' . 'Did you forget to map it?', $options['class'] )); } return $em; }; $resolver->setDefaults(array( 'em' => null, 'property' => null, 'query_builder' => null, 'loader' => $loader, 'choices' => null, 'choice_list' => $choiceList, 'group_by' => null, )); $resolver->setRequired(array('class')); $resolver->setNormalizers(array( 'em' => $emNormalizer, )); $resolver->setAllowedTypes(array( 'loader' => array('null', 'Symfony\Bridge\Doctrine\Form\ChoiceList\EntityLoaderInterface'), )); } /** * Return the default loader object. * * @param ObjectManager $manager * @param mixed $queryBuilder * @param string $class * * @return EntityLoaderInterface */ abstract public function getLoader(ObjectManager $manager, $queryBuilder, $class); public function getParent() { return 'choice'; } }