我使用Api平台。我有订阅者
namespace App\EventSubscriber\Api;
use ApiPlatform\Core\EventListener\EventPriorities;
use App\Entity\Product;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
use Symfony\Component\HttpKernel\KernelEvents;
final class ProductCreateSubscriber implements EventSubscriberInterface
{
public static function getSubscribedEvents()
{
return [
KernelEvents::VIEW => ['createHost', EventPriorities::POST_WRITE],
];
}
public function createHost(GetResponseForControllerResultEvent $event)
{
$product = $event->getControllerResult();
$method = $event->getRequest()->getMethod();
if (!$product instanceof Product || Request::METHOD_POST !== $method) {
return;
}
I NEED ENTITY MANAGER HERE
}
}
可以在这里找到实体经理吗?
创建产品后,我需要创建另一个实体
答案 0 :(得分:1)
Symfony允许(并推荐)注入dependencies in services。
我们向订户添加了一个构造函数,以便注入学说并使其可通过$this->entityManager
访问:
use Doctrine\ORM\EntityManagerInterface;
final class ProductCreateSubscriber implements EventSubscriberInterface
{
/**
* @var EntityManagerInterface
*/
private $entityManager;
public function __construct(
EntityManagerInterface $entityManager
) {
$this->entityManager = $entityManager;
}
public function createHost(GetResponseForControllerResultEvent $event)
{
$product = $event->getControllerResult();
$method = $event->getRequest()->getMethod();
if (!$product instanceof Product || Request::METHOD_POST !== $method) {
return;
}
// You can access to the entity manager
$this->entityManager->persist($myObject);
$this->entityManager->flush();
}
如果启用了autowiring,您将无事可做,该服务将自动实例化。
如果没有,则必须declare the service:
App\EventSubscriber\Api\ProductCreateSubscriber:
arguments:
- '@doctrine.orm.entity_manager'