Symfony2動態表單修改不保存生成的數據

Question

我瘋了，因爲如果我從實體字段中選擇客戶端，它會正確填充名爲提議的第二個實體字段。然後我選擇動態生成的提案，但是當我保存表單時，它會正確保存表單，但不填寫提案字段。我跟着Symfony的教程大約可以發現here

這是我的FormType代碼的動態表單：

public function buildForm(FormBuilderInterface $builder, array $options) { 
     $builder->add('client', 'entity', array(
      'class' => 'AppBundle\Entity\Client', 
      'property' => 'name', 
      'label' => 'Client:', 
      'empty_value' => '', 
      'required' => false, 
      'query_builder' => function (EntityRepository $er) { 
      return $er->createQueryBuilder('u') 
       ->orderBy('u.name', 'ASC'); 
     }, 
     )); 


$formModifier = function (FormInterface $form, Client $client = null) { 

     $proposals = null === $client ? array() : $this->em->getRepository('AppBundle:Proposals')->findBy(
      array('client'=>$client->getId()), 
      array('id' => 'DESC')); 

     $form->add('proposal', 'entity', array(
      'class' => 'AppBundle\Entity\Proposal', 
      'choice_label' => 'subject', 
      'placeholder' => '', 
      'choices'  => $proposals, 
      'label' => 'Proposal', 
      'required' => false 
     )); 
    }; 

    $builder->addEventListener(
     FormEvents::PRE_SET_DATA, 
     function (FormEvent $event) use ($formModifier) { 
      $client = null; 
      $data = $event->getData(); 
      if(!empty($data)) { 
       $client = $data->getClient(); 
      } 
      $formModifier($event->getForm(), $client); 
     } 
    ); 

    $builder->get('client')->addEventListener(
     FormEvents::POST_SUBMIT, 
     function (FormEvent $event) use ($formModifier) { 

      $client = $event->getForm()->getData(); 

      $formModifier($event->getForm()->getParent(), $client); 
     } 
    ); 

這是價格預定實體，屬於誰的形式之一。

class Prenotazione { 

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

/** 
* @ORM\ManyToOne(targetEntity="Client", inversedBy="prenotazioni") 
* @ORM\JoinColumn(name="client_id", referencedColumnName="id") 
*/ 
private $client; 

/** 
* @ORM\OneToOne(targetEntity="Proposal", inversedBy="prenotazione") 
* @ORM\JoinColumn(name="proposal_id", referencedColumnName="id") 
*/ 
private $proposal; 




public function getId() { 
    return $this->id; 
} 


public function setProposal(\AppBundle\Entity\Proposal $proposal = null) 
{ 
    $this->proposal = $proposal; 

    return $this; 
} 

public function getProposal() { 
    return $this->proposal; 
} 


public function setClient(\AppBundle\Entity\Client $client = null) 
{ 
    $this->client = $client; 

    return $this; 
} 


public function getClient() 
{ 
    return $this->client; 
} 

}

我在哪裏錯了？

Answer 1

您確定您的提案查詢是正確的嗎？

$proposals = null === $client ? array() : $this->em->getRepository('AppBundle:Proposals')->findBy(
    array('client'=>$client->getId()), 
    array('id' => 'DESC')); 

不應該這個是要麼array('client_id' => $client->getId()),或array('client' => $client),？

嘗試檢查$建議的實際內容，方法是在下面添加一個dump($proposals)，然後在symfony分析器中查找結果。