呼叫的實體的方法在控制器

Question

我有三個實體：發票，支付和結果

實體之間的關係是： 結果（1,1）------------- （1，n）發票（1，n）---------------（1,1）Payment 這是我的問題：我想在我的PaymentController中創建一個新的payement，我檢索發票實體，並在同一個PaymentController中創建一個新的結果。

這裏是我的PaymentController代碼：

use MyApp\AccountBundle\Entity\Result; 
class PaymentController extends Controller 
    public function createAction() 
    { 
    $entity = new Payment(); 
    $request = $this->getRequest(); 
    $form = $this->createForm(new PaymentType(), $entity); 
    $form->bindRequest($request); 
    $amount=$form->get('amountreceived')->getData(); 
    if ($form->isValid()) { 
     $em = $this->getDoctrine()->getEntityManager(); 
     $invoice = em->getRepository('MyAppAccountBundle:Invoice')->find($entity->getInvoice()->getId()) 
     if (!$invoice) { 
     throw $this->createNotFoundException('Unable to find Invoice entity.'); 
      } 
      $result=new Result(); 
      $result=setDebitAmount($amount); 
    $result=setCreditAmount(0); 
    $result=setInvoice($invoice); 
      $em->persist($result); 
      $em->persist($entity); 
      $em->flush(); 
     return $this->redirect($this->generateUrl('payment_show', array('id' => $entity->getId()))); 
    } 
    return $this->render('MyAppAccountBundle:Payment:new.html.twig', array(
     'entity' => $entity, 
     'form' => $form->createView() 
    )); 

當執行PaymentController（鑑於）我得到錯誤： 致命錯誤：調用未定義的函數MyApp的\ AccountBundle \控制器\ setDebitAmount（）在C：\ WAMP \ WWW \帳戶的\ src \ MyApp的\ AccountBundle \控制器\ PaymentController.php上線...

預先感謝

Answer 1

變化=到->

$result=setDebitAmount($amount); 

必須

$result->setDebitAmount($amount);