我尝试理解Doctrine方面的一些奇怪的行为,例如:
我有一个简单的表单,并在最终创建表单的请求中发送参数.
/**
* Displays a form to create a new Comment entity.
*
* @Route("/saveComment/", name="comment_new")
* @Method("POST")
* @Template()
*/
public function newAction(Request $request)
{
$entity = new Comment();
$form = $this->createCreateForm($entity, $request);
return array(
'entity' => $entity,
'form' => $form->createView(),
);
}
现在我得到我的参数并尝试在学说中找到对象.
/**
* Creates a form to create a Comment entity.
*
* @param Comment $entity The entity
*
* @return \Symfony\Component\Form\Form The form
*/
private function createCreateForm(Comment $entity, Request $request)
{
$em = $this->getDoctrine()->getManager();
$commentForUserRequest = $request->request->get('commentForUser');
$commentForUser = $em->getRepository('ApplicationSonataUserBundle:User')->findOneBy(array('username' => $commentForUserRequest ));
$auctionRequest = $request->request->getInt('auction');
$auction = $em->getRepository('AppBundle:Auction')->find(1); // **ALL FINE**
$auction = $em->getRepository('AppBundle:Auction')->find($auctionRequest); //**PROBLEM**
$auction->addComment($entity);
$entity->setAuction($auction);
$form = $this->createForm(new CommentType(), $entity, array(
'action' => $this->generateUrl('comment_create'),
'method' => 'POST',
));
}
当我给出一个数字而不是我的请求参数时,一切正常.
仅针对第二种情况发生以下错误消息:
Error: Call to a member function addComment() on a non-object
我不明白我做错了什么.
编辑:
并且comment_create
/**
* Creates a new Comment entity.
*
* @Route("/comment/", name="comment_create")
* @Method("POST")
* @Template("AppBundle:Comment:new.html.twig")
*/
public function createAction(Request $request)
{
$entity = new Comment();
$form = $this->createCreateForm($entity, $request);
$form->handleRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('comment_show', array('id' => $entity->getId())));
}
return array(
'entity' => $entity,
'form' => $form->createView(),
);
}
最佳答案
$request->request->getInt('auction');
该行将检查POST(NOT GET)请求变量’auction’.
您可以使用相同的操作来生成以及处理表单提交.