Symfony2のFormで現在困ってるところ。 Able - AbleBakerのOneToMany Able - AbleCharieのOneToMany AbleBaker - AbleCharieのManyToMany があって、Ableのフォーム内でAbleBakerを編集したい。 AbleBakerTypeでのAbleCharieの選択肢を同じAbleに属するものに限定したいのだが、collectionとして使った場合にAbleBakerType内で関連付けられてるAbleBakerエンティティを取得する方法が無いため、どのAbleに属しているか特定できない。

AbleBakerType.php

<?php

namespace Acme\DemoBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

use Acme\DemoBundle\EntityRepository\AbleCharieRepository;

class AbleBakerType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $ableId = $options['data']->getAble()->getId(); //works fine in isolated use, but does not work in collection use
        
        $builder
            ->add('ableCharie', 'entity', array(
                    'class' => 'AcmeDemoBundle:AbleCharie',
                    'multiple' => true,
                    'query_builder' => function(AbleCharieRepository $er) use ($ableId)
                    {
                        return $er->createQueryBuilder('ac')->where('ac.able = :able')->setParameter('able', $ableId);
                    },
                ))
        ;
    }
    
    public function setDefaultOptions(OptionResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Acme\DemoBundle\Entity\AbleBaker',
        ));
    }
}

AbleType.php

<?php

namespace Acme\DemoBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

use Acme\DemoBundle\Form\Type\AbleBakerType;

class AbleType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('ableBakers', 'collection', array('type' => new AbleBakerType()))
        ;
    }
    
    public function setDefaultOptions(OptionResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Acme\DemoBundle\Entity\Able',
        ));
    }
}