php - fatal error 异常 : Error: Call to a member function has() on a non-object

Question

我已经阅读了很多关于此的主题，但我似乎无法找到解决我的问题的方法。

我觉得问题很明显，也许我盯着它看的时间太长了。

错误是 FatalErrorException: Error: Call to a member function has() on a non-object in/vagrant/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php line 198

查看错误行，它说。

public function getDoctrine()
    {
        if (!$this->container->has('doctrine')) {
            throw new \LogicException('The DoctrineBundle is not registered in your application.');
        }

        return $this->container->get('doctrine');
    }

这是我的代码...

这是调用 DAO Controller 的主 Controller

public function clickThroughAction(request $request, $hash)
    {
        if (isset($hash)) {
            $dbController = $this->get('database_controller');
            print_r($dbController->getReferralIdByHash($hash));
            return $this->redirect($this->generateUrl('home'));
        } else {
            return 0;

        }
    }

这是正在使用的服务。

services:
    database_controller:
        class:  Fuel\FormBundle\Controller\DatabaseController

这是调用数据库的dao Controller 。

public function getReferralIdByHash($hash)
    {
        $em = $this->getDoctrine()->getManager();
        $query = $em->createQuery(
            'Select u From FuelFormBundle:UserReferrals u WHERE u.user_hash = :hash'
        )->setParameter('hash', $hash);

        $referral = $query->getResult();

        if (!$referral) {
            throw $this->createNotFoundException(
                'No product referral found'
            );
            $logger = $this->get('logger');
            $logger->info('I just got the logger');
            $logger->crit('An error occurred, hash for referrals is not recognized. current hash is: ' . $hash . " .");
            return $this->redirect($this->generateUrl('home'));
        }

        $clickThroughCount = $referral[0]->getClickThrough();
        $referral[0]->setClickThrough($clickThroughCount + 1);
        $em->flush();
        return $referral;
    }

我认为问题是 Doctrine 容器不存在，这就是我遇到问题的原因。我不确定如何解决这个问题。

感谢任何帮助。谢谢!

编辑

---

好的，这就是我所做的更改。

主 Controller 保持不变。

添加了一些 DAO Controller 。

class DatabaseController extends Controller{
    protected  $entityManager;

    public function __construct($entityManager) {
        $this->entityManager = $entityManager;
    }
public function getReferralIdByHash($hash)
    {
        $em = $this->entityManager;
        $query = $em->createQuery(
            'Select u From FuelFormBundle:UserReferrals u WHERE u.user_hash = :hash'
        )->setParameter('hash', $hash);

        $referral = $query->getResult();

        if (!$referral) {
            throw $this->createNotFoundException(
                'No product referral found'
            );
            $logger = $this->get('logger');
            $logger->info('I just got the logger');
            $logger->crit('An error occurred, hash for referrals is not recognized. current hash is: ' . $hash . " .");
            return $this->redirect($this->generateUrl('home'));
        }

        $clickThroughCount = $referral[0]->getClickThrough();
        $referral[0]->setClickThrough($clickThroughCount + 1);
        $em->flush();
        return $referral;
    }
}

服务最终看起来像这样

services:
     database_controller:
          class:  Fuel\FormBundle\Controller\DatabaseController
          arguments: ["@doctrine.orm.entity_manager"]

Answer 1

问题是容器没有被注入(inject)到这里的 Controller 中。

通常，如果您扩展 Symfony\Bundle\FrameworkBundle\Controller\Controller，Symfony 会自动执行此操作，它本身扩展了 Symfony\Component\DependencyInjection\ContainerAware:

use Symfony\Bundle\FrameworkBundle\Controller\Controller;

class YourController extends Controller

使用 setter injection 将容器注入(inject) Controller (如果未明确定义为服务)以容器作为参数调用方法 setContainer()。

现在，当您将 Controller 配置为服务时，您需要将 setContainer 调用添加到您的服务配置中:

services:
    database_controller:
        class:  Fuel\FormBundle\Controller\DatabaseController
        calls:
            - [setContainer, ["@service_container"]]

之后清除缓存。