我已經使用 JMS 序列化包構建了一個 api。此外，我有一個實體Ticket，它有一個名為TicketRepository的存儲庫。此存儲庫包含以下方法：/** * @param Ticket $object * * @return string */public function findByTicketDeadline($object){ // some logic}我的目標：使用 EventSubscriber 將此函數的返回值傳遞給 json。這是我的類TicketSerializationSubscriber class TicketSerializationSubscriber implements EventSubscriberInterface{ /** * @param ObjectEvent $event */ public function onPostSerialize(ObjectEvent $event) { /** @var JsonSerializationVisitor $visitor */ $visitor = $event->getVisitor(); $visitor->setData('ticketDeadline', 'TEST TICKET'); // WORKS /** @var Ticket $ticket */ $ticket = $event->getObject(); /** @var TicketRepository $ticketRepo */ $ticketRepo = $event->getObject(); $visitor->setData('TESTING', $ticketRepo->findByTicketDeadline($ticket));// $visitor->setData('uri',// $this->router->generate('ticket_api_show', [// 'ticketDeadline' => $ticketRepo->findByTicketDeadline($ticket)// ])// ); } public static function getSubscribedEvents() { return array( array( 'event' => 'serializer.post_serialize', 'method' => 'onPostSerialize', 'class' => 'CMS3\CoreBundle\Entity\Ticket', // if no class, subscribe to every serialization //'class' => 'CMS3\CoreBundle\Repository\TicketRepository', // if no class, subscribe to every serialization 'format' => 'json', // optional format //'priority' => 0, // optional priority ), ); }}當我將存儲庫方法傳遞給 $visitor->setData() 函數時，出現此錯誤：
1 回答
小怪獸愛吃肉
TA貢獻1852條經驗 獲得超1個贊
您當前的代碼失敗，因為$ticketRepo = $event->getObject();它返回的Ticket對象是它上面一行中的對象，而不是預期的TicketRepository.
您需要將EntityManageror Repository（如果您有存儲庫作為服務）注入您TicketSerializationSubscriber::__construct()的TicketRepository.
假設您已autowire啟用包含TicketSerializationSubscriber.
use Doctrine\ORM\EntityManagerInterface;
class TicketSerializationSubscriber implements EventSubscriberInterface
{
/**
* @var \Doctrine\ORM\EntityManager
*/
private $em;
public function __construct(EntityManagerInterface $em)
{
$this->em = $em;
}
public function onPostSerialize(ObjectEvent $event)
{
/** @var JsonSerializationVisitor $visitor */
$visitor = $event->getVisitor();
$ticket = $event->getObject();
if (!$ticket instanceof Ticket) {
//ensure object is of expected type
return;
}
/** @var TicketRepository $ticketRepo */
$ticketRepo = $this->em->getRepository(Ticket::class);
$visitor->setData('TESTING', $ticketRepo->findByTicketDeadline($ticket));
//...
}
//...
}
如果不使用，autowire您將需要手動將其添加到您的TicketSerializationSubscriber服務聲明參數中。
#app/config/services.yml
services:
#...
TicketSerializationSubscriber:
public: false
arguments: ['@doctrine.orm.entity_manager']
tags:
- { name: kernel.event_subscriber }
#...
確保在進行更改后clear和warmupSymfony 緩存。
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