Symfony 2将验证移至实体，与相关实体验证

Question

我有上诉实体; SiteTariff，用户实体;关税，现场实体 如何将验证移动到实体。验证复杂：包含相关实体。我试图写一个回调（在实体）=>没有结果。

$appeal = new Appeal(); 
    $form = $this->createFormBuilder($appeal); 

    if ($request->isMethod('POST')) 
    { 
     $form->bind($request); 

     $appeal->setUser($user); //addRelation 

     $appeal->appeals_count = $value; //set value to public field 

     if ($site_tariff_id = $form->getData()->site_tariff_id) 
     { 
      $siteTariff = $em->find('', $site_tariff_id); 
      $appeal->setSiteTariff($siteTariff); //addRelation 
     } 
     else 
     { 
      //addError, break 
     }      


     if ($appeal->getSiteTariff()->getSite()->getUser()->getId() != $user->getId()) 
     { 
      //addError 
     } 

     if ($appeal->getSiteTariff()->getTariff()->getAppealsNumber() <= $appeal->appeals_count) 
     { 
      //addError 
     } 

     if ($form->isValid()) 
     { 
      $em->persist($appeal); 
     } 
    } 

在回调，我没有得到$ siteTariff对象调用$this->getSiteTariff()后，symfony中写道：“非对象”

public function isSiteTariffValid(ExecutionContext $context) 
    { 
     var_dump($this->getSiteTariff()->getId());  
    } 

Answer 1

您的验证码应该是你的实体内，而不是你的控制器内。请参阅文档：http://symfony.com/doc/current/reference/constraints/Callback.html