Symfony 2將驗證移至實體，與相關實體驗證

Question

我有上訴實體; SiteTariff，用戶實體;關稅，現場實體 如何將驗證移動到實體。驗證複雜：包含相關實體。我試圖寫一個回調（在實體）=>沒有結果。

$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); 
     } 
    } 

在回調，我沒有得到$ siteTariff對象調用$this->getSiteTariff()後，symfony中寫道：「非對象」

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

Answer 1

您的驗證碼應該是你的實體內，而不是你的控制器內。請參閱文檔：http://symfony.com/doc/current/reference/constraints/Callback.html