Symfony:如何渲染编辑类json_array属性与一个复选框列表

在我的symfony2应用程序中，我有一个json_array类型的属性:

/**
 * @ORM'Column(name="rights", type="json_array", nullable=true)
 */
protected $rights = array();

该属性的数据是一个关联数组，如下所示:

    $allRights = array(
        Associate::READ_PROFILE => array('all' => false),
        Associate::UPDATE_PROFILE => array('all' => false),
        Associate::READ_CONTACT => array('all', 'created' => false),
);

我希望能够编辑这个属性与复选框的集合集合，即。我希望第一级的每个键对应一行，第二级的每个键对应一个复选框。

我有一个starter表单类型，它调用自定义类型:

<?php
namespace AppBundle'Form'User;
use AppBundle'Entity'User'Associate;
use AppBundle'Form'DataTransformer'RightsToArrayTransformer;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'Form'FormEvent;
use Symfony'Component'Form'FormEvents;
use Symfony'Component'OptionsResolver'OptionsResolverInterface;
use Symfony'Component'Validator'Constraints as Assert;
class AssociateRightsType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('rights', 'fmu_rights', array(
                'label' => false,
            ));
    }
    /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'AppBundle'Entity'User'Associate',
            'validation_groups' => array('Default', 'rights'),
            'cascade_validation' => true,
        ));
    }
    /**
     * @return string
     */
    public function getName()
    {
        return 'appbundle_user_associate_rights';
    }
}

在这个自定义类型中，我添加了一个datattransformer:

<?php
namespace AppBundle'Form'Type;
use AppBundle'Application'User'AssociateManager;
use AppBundle'Entity'User'Associate;
use AppBundle'Form'DataTransformer'RightsToArrayTransformer;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'Form'FormInterface;
use Symfony'Component'Form'FormView;
use Symfony'Component'Validator'Constraints as Assert;
use Symfony'Component'OptionsResolver'OptionsResolverInterface;
class RightsType extends AbstractType
{
    /**
     * @var AssociateManager
     */
    private $associateManager;
    public function __construct(AssociateManager $associateManager)
    {
        $this->associateManager = $associateManager;
    }
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $transformer = new RightsToArrayTransformer();
        $builder->addModelTransformer($transformer);

    }
    /**
     * @return string
     */
    public function getName()
    {
        return 'fmu_rights';
    }
}

在这个数据转换器中，我确保以正确的格式输出数据:

<?php
namespace AppBundle'Form'DataTransformer;
use AppBundle'Entity'User'Associate;
use Symfony'Component'Form'DataTransformerInterface;
class RightsToArrayTransformer implements DataTransformerInterface
{
    /**
     * @param mixed $data
     * @return array|mixed
     */
    public function transform($data)
    {
        return is_array($data) ? $data + $this->getRights() : $this->getRights();
    }
    /**
     * @param mixed $data
     * @return array
     */
    public function reverseTransform($data)
    {
        return $data;
    }
    private function getRights()
    {
        $allRights = array(
            Associate::READ_PROFILE => array('all'),
            Associate::UPDATE_PROFILE => array('all'),
            Associate::READ_CONTACT => array('all', 'created'),
            Associate::UPDATE_CONTACT => array('all', 'created'),
            Associate::DELETE_CONTACT => array('all', 'created'),
            Associate::IS_BOSS => array('all'),
        );
        foreach ($allRights as $right => $parameters) {
            $allRights[$right] = array();
            foreach ($parameters as $parameter) {
                $allRights[$right][$parameter] = false;
            }
        }
        return $allRights;
    }
}

和我有一个自定义视图，使正确的视觉输出:

{% block fmu_rights_widget %}
    {% if attr.class is defined %}
        {% set attr = attr|merge({'class': attr.class ~ ' input-sm form-control fmu_rights'}) %}
    {% endif %}
    {% set rights = form.vars.data %}
    {% for right, parameters in rights %}
        <div class="row padding-v">
            <div class="col-md-2">
                {{ right }}
            </div>
            <div class="col-md-10">
                {% for parameter, value in parameters %}
                    {% set name = id ~ '[' ~ loop.index ~ ']' ~ right ~ '[' ~ parameter ~ ']' %}
                        <label for="{{ name }}">{{ parameter }}</label>
                        <input type="checkbox" id="{{ name }}" name="{{ name }}" {% if value %}checked{% endif %}>
                {% endfor %}
            </div>
        </div>
    {% endfor %}
{% endblock %}

但是，发送表单时返回的数据是原始数据输出，而不是修改后的数据。我想我在视图中做错了。我怎样才能正确地编辑此数据，并能够操纵它的反向转换函数的数据转换器?