Question

我有两个控制器，一个记录修改过的实体并将它们放在一个会话中：

public function update_accountAction(Request $request)
{   
    Try
    {
        $code = $request->request->get('code'); 
        $name = $request->request->get('name'); 

        $em = $this->getDoctrine()->getManager();
        $repo = $em->getRepository('NRtworksChartOfAccountsBundle:Accounttree');

        $to_change = new Accounttree();
        $to_change = $repo->findOneByCode($code);

        $to_change->setName($name);
        $to_change->setCode($code);

        $session = $this->getRequest()->getSession();
        $entity_to_update = $session->get('entity_to_update');

        $counter = $session->get('number_of_changes');

        $entity_to_update[] = $to_change;  

        $counter = $counter +1;

        $session->set('number_of_changes',$counter);
        $session->set('entity_to_update',serialize($entity_to_update));


        $response = array("code" => 100, "success" => true, "modified" => $entity_to_update);
        return new Response(json_encode($response));
    }
    Catch(Exception $e)
    {
        $response = array("code" => 100, "success" => false, "error" => $e);
        return new Response($response);
    }

}

另一个循环结果，如果它实际上是一个期望的对象持续它。最后我冲了过来。

public function save_changesAction()
 {
     Try
     {
         $em = $this->getDoctrine()->getManager();

         $session = $this->getRequest()->getSession();

         $entity_to_update = unserialize($session->get('entity_to_update'));


         foreach($entity_to_update as $account)
         {
             if($account->getId())
             {                     
                $em->persist($account); 
                echo $account->getId();
             }
             else
             {
                   echo "error";
             }
         }

         $em->flush();
         $response = array("code" => 100, "success" => true, "modified" => $account->getId());
         return new Response(json_encode($response));
     }
     Catch(Exception $e)
     {
        $response = array("code" => 100, "success" => false, "error" => $e);
        return new Response($response);
     }

}

所以结果是： ContextErrorException：注意：/home/eagle1/www/Symfony24/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php第2852行中未定义的索引：000000007a60b041000000007ae6afd8

我不明白为什么，因为我似乎回到了一个功能齐全的对象（我可以执行它的功能，访问它的属性，而且似乎还有持久性工作......

有人知道答案吗？

Answer 1

当您从会话中提取对象时，它不受学说管理。您必须将其合并回来通知实体经理。

if($account->getId())
{                     
    $account = $em->merge($account);
    $em->persist($account); 
    echo $account->getId();
 }

Doctrine有Entities in the Session

的手册部分

持久化并刷新会话中的对象

1 个答案: