Symfony2 (beta5) 1:M/M:1 的形式

Question

我有实体“Creative”和实体“Question”...当我有从 Creative 到 Question 的多对多关系时，我可以轻松执行 $builder->add('questions')，它会抓取所有问题并放入将它们放入多选并插入到creative_question中。好吧，我需要有一个新的字段（位置）来创意问题，所以我必须创建一个 OneToMany / ManyToOne 关系。但是当我添加字段 ($builder->add('creativeQuestions')) 时，多选是空白的，它似乎试图查询 marketing_question 来填充它..这是错误的。我需要填充问题并将其插入到creative_question中。

无论如何，这是我的代码：

## Creative.php

[...]

/**
 * @ORM\Column(type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="IDENTITY")
 */
protected $id;

/**
 * @ORM\ManyToOne(targetEntity="Offer", cascade={"persist"})
 */
protected $offer;

/**
 * @ORM\OneToMany(targetEntity="CreativeQuestion", mappedBy="creative", cascade={"persist"})
 */
protected $creativeQuestions;

[...]

---

## CreativeQuestion.php

[...]

/**
 * @ORM\Column(type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="IDENTITY")
 */
protected $id;

/**
 * @ORM\ManyToOne(targetEntity="Creative", cascade={"persist"})
 */
protected $creative;

/**
 * @ORM\ManyToOne(targetEntity="Question", cascade={"persist"})
 */
protected $question;

/**
 * @ORM\Column(type="integer")
 */
protected $pos;

[...]

---

## CreativeType.php

[...]

public function buildForm(FormBuilder $builder, array $options)
{
    $builder
        ->add('name')
        ->add('title')
        ->add('description')
        ->add('body')
        ->add('script')
        ->add('creativeQuestions') // how do i populate list with "Questions" then insert into creative_question?
        ->add('active');
}

public function getDefaultOptions(array $options)
{
    return array(
        'data_class' => 'JStout\MainBundle\Entity\Creative'
    );
}

[...]

---

## In My Controller:

 /**
 * @Extra\Route("/offer/{offerId}/creative", name="admin_offer_creative")
 * @Extra\Route("/offer/{offerId}/creative/{creativeId}", name="admin_offer_creative_edit")
 * @Extra\Template()
 */
public function creativeAction($offerId = null, $creativeId = null)
{
    // Get Offer
    $offer = $this->_getObject('Offer', $offerId);

    if (null === $offer->getId()) throw new NotFoundHttpException('The page you requested does not exist!');

    // Get Creative
    $creative = $this->_getObject('Creative', $creativeId);

    // Set offer to creative
    $creative->setOffer($offer);

    // Get form and handler
    $form = $this->get('form.factory')->create(new Form\CreativeType(), $creative);
    $formHandler = $this->get('form.handler')->create(new Form\CreativeHandler(), $form);

    [...]
}

protected function _getObject($entityName, $id = null)
{
    // Find object
    if (null !== $id) {
        if (!$object = $this->get('doctrine')->getEntityManager()->find('ZGOffersMainBundle:' . $entityName, $id)) {
            throw new NotFoundHttpException('The page you requested does not exist!');
        }

        return $object;
    }

    // Initialize new object
    $entityName = 'JStout\MainBundle\Entity\\' . $entityName;
    if (class_exists($entityName)) {
        return new $entityName();
    }

    throw new NotFoundHttpException('The page you requested does not exist!');
}

[...]

同样，当我删除 CreativeQuestion 并仅使用 ManyToMany 关系执行问题时，我需要的工作：

但是，理想情况下，我希望能够（使用 jquery）通过从下拉框中选择来添加问题，然后拖放以定位问题。 jquery 定位很简单，我只是不知道如何添加我想要的问题。如果我至少能让多选工作，那么我就可以继续前进，但我现在有点卡住了！

有人用 Symfony2 (beta5) 做到这一步了吗？