如何在symfony2中編輯函數

Question

我已經編寫了symfony2中的編輯函數，我的問題是我可以從數據庫中獲取以前的值，但是在提交表單後，值創建的不是一個新窗體創建的

這裏是控制器

 public function editAction($id){ 
     $request = $this->getRequest(); 
    $em = $this->getDoctrine()->getEntityManager(); 
    $profile= $em->getRepository('TcprofileBundle:TcProfiles') 
    ->find($id); 

     $profile_form = $this->createForm(new ProfileType(), $profile); 
     $response = new JsonResponse(); 
     $response->setData(array('content' => $this->renderView('TcprofileBundle:Default:create.html.twig',array('form' => $profile_form->createView())))); 
     return $response; 

} 

Html.twig文件

<div class="edit01"><a href="#!{{ path('tcprofile_edit',{ 'id': profile.getId}) }}"> Edit Profile </a></div> 

我取出舊的價值觀，所以我把，如果環路條件檢查這樣

控制器

public function editAction($id){ 

    $request = $this->getRequest(); 
    $em = $this->getDoctrine()->getEntityManager(); 
    $profile= $em->getRepository('TcprofileBundle:TcProfiles') 
    ->find($id); 
    if(!$id){ 
    $profile_form = $this->createForm(new ProfileType(), $profile); 
    $response = new JsonResponse(); 
    $response->setData(array('content' => $this->renderView('TcprofileBundle:Default:create.html.twig',array('form' => $profile_form->createView())))); 
    return $response; 
    }else{ 
     $profile->upload(); 
     $em->persist($profile); 
     $em->flush(); 


    $response = new JsonResponse(); 
    $response->setData(array('content' => $this->renderView('TcprofileBundle:Default:create.html.twig',array('form' => $profile_form->createView())))); 
    return $response; 
} 
} 

它得不到輸出請幫助我，如果我錯了地方

Answer 1

可以更新實體時使用$em->merge($profile)代替$em->persist($profile)。請問this stack overflow後