Symfony2 FOSRestBundle PUT Action FORM返回空结果

我正在使用Symfony 2.2和最新版本的FOSRestBundle。所以我已经设法使大部分的行动工作，但我似乎有一个问题与FormBuilder，我正在传递我的PUT调用的请求。

我已经检查了请求对象，它来自我的主干。但是在绑定到表单之后，实体只返回id，这会导致flush()抛出一个错误，因为必需的字段没有填充。

控制器中的动作:

header('Access-Control-Allow-Methods: GET, POST, PUT, DELETE, OPTIONS ');
header('Allow GET, POST, PUT, DELETE, OPTIONS ');
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Headers: Content-Type, *');
use FOS'RestBundle'Controller'FOSRestController;
use FOS'RestBundle'Controller'Annotations as Rest;
use FOS'RestBundle'Routing'ClassResourceInterface;
use FOS'Rest'Util'Codes;
use Symfony'Component'HttpFoundation'Request;
use Greenthumbed'ApiBundle'Entity'Container;
use Greenthumbed'ApiBundle'Form'ContainerType;
class ContainerController extends FOSRestController implements ClassResourceInterface
{
/**
 * Put action
 * @var Request $request
 * @var integer $id Id of the entity
 * @return View|array
 */
public function putAction(Request $request, $id)
{
    $entity = $this->getEntity($id);
    $form = $this->createForm(new ContainerType(), $entity);
    $form->bind($request);
    if ($form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($entity);
        $em->flush();
        return $this->view(null, Codes::HTTP_NO_CONTENT);
    }
    return array(
        'form' => $form,
    );
}
/**
 * Get entity instance
 * @var integer $id Id of the entity
 * @return Container
 */
protected function getEntity($id)
{
    $em = $this->getDoctrine()->getManager();
    $entity = $em->getRepository('GreenthumbedApiBundle:Container')->find($id);
    if (!$entity) {
        throw $this->createNotFoundException('Unable to find Container entity');
    }
    return $entity;
}

被称为

的表单

namespace Greenthumbed'ApiBundle'Form;
use Symfony'Component'Form'AbstractType;
use Symfony'Component'Form'FormBuilderInterface;
use Symfony'Component'OptionsResolver'OptionsResolverInterface;
class ContainerType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('name')
            ->add('description')
            ->add('isVisible')
            ->add('type')
            ->add('size')
            ->add('creationDate')
            ->add('userId')
        ;
    }
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Greenthumbed'ApiBundle'Entity'Container',
            'csrf_protection' => false,
        ));
    }
    public function getName()
    {
        return 'greenthumbed_apibundle_containertype';
    }
}

到目前为止，我已经尝试了所有的东西，但我是Symfony的新手，我无法理解为什么$entity不包含请求收到的值。

仅供参考:我已经尝试过手动做它在实例化一个容器类与请求的ID和使用设置器输入值到它，它工作得很好，我只是想做事情的正确方式作为Symfony建议它应该做的。

提前谢谢你。

$form = $this->createForm(new ContainerType(), $entity);

$form = $this->createForm(new ContainerType(), $entity, array('method' => 'PUT'));

{"greenthumbed_apibundle_containertype": [{"key": "value"}]}

{"key":"value","key2":"value2"}

public function getName()
{
    return '';
}

"something":{"key":"value"}

use Greenthumbed'ApiBundle'Entity'Container;
// ...
public function putAction(Request $request, Container $container)
{
    $form = $this->createForm(new ContainerType(), $container);
    $form->bind($request);
    if ($form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        // Entity already exists -> no need to persist!
        // $em->persist($entity);   
        $em->flush();
        return $this->view(null, Codes::HTTP_NO_CONTENT);
    }
    return array('form' => $form);
}