Symfony2 yml：将相同的参数传递给每个服务

Question

我正在尝试重用 [@service_container,@doctrine.orm.entity_manager] 作为单个变量，但似乎无法弄清楚。我计划在添加更多模型时重复使用。

services:
    generalfunctions:
        class: classes\classBundle\Controller\DefaultController
    functionsClass:
        class: classes\classBundle\Classes\functionsClass    
        arguments:    [@service_container,@doctrine.orm.entity_manager]
    OtakuClass:
        class: classes\classBundle\Models\otakusModel
        arguments:    [@service_container,@doctrine.orm.entity_manager]    

Answer 1

你可以：

• 不打扰
• 仅传递服务容器并从中获取所有服务
• 创建自己的类，只包含重复的服务和方法getServiceContainer()、getEntityManager()等
• 使用自动连线 - http://symfony.com/doc/current/components/dependency_injection/autowiring.html

Answer 2

谢谢大家，我最终制作了一个基类，所有模型都扩展了这个单一的基类。我不知道你可以从服务对象中复制实体管理器。

<?php
namespace classes\classBundle\Models;
use Doctrine\ORM\EntityManager;
use Symfony\Component\DependencyInjection\ContainerInterface;
class baseModel
{
    protected $container;
    protected $user;
    protected $functionsClass;
    protected $em;
    protected $connection;
    public function __construct(ContainerInterface $container)
    {
        $this->container = $container;
        $this->em = $this->container->get("doctrine")->getManager();
        $this->connection =  $this->container->get('doctrine.dbal.default_connection');
        $this->functionsClass = $this->container->get("functionsClass");
        $this->user = $this->container->get('security.context')->getToken()->getUser();
    }
}

<?php
namespace classes\classBundle\Models;
use classes\classBundle\Models\baseModel;
use classes\classBundle\Entity\subscriptions;
class subscriptionsModel extends baseModel
{
    public function returnSubscription($params)
    {
        $repository = $this->em->getRepository('classesclassBundle:subscriptions');
        $subscription =  $repository->findBy($params);
        return $subscription;
    }
    public function subscribe($params)
    {
        $repository = $this->em->getRepository('classesclassBundle:subscriptions');
        $params['otakuid'] = $this->container->get("OtakuClass")->getId();
        $subscription =  $repository->findOneBy($params);
        if ($subscription == null)
        {
            $subscription = new subscriptions();
            foreach ($params as $key => $value)
            $subscription->$key = $value;
            $this->em->persist($subscription);
        }
        else
        $this->em->remove($subscription);
        $this->em->flush();
    }
}

services:
    generalfunctions:
     class: classes\classBundle\Controller\DefaultController
    functionsClass:
     class: classes\classBundle\Classes\functionsClass    
     arguments:    [@service_container]
    OtakuClass:
     class: classes\classBundle\Models\otakusModel
     arguments:    [@service_container]
    privateMessagesModel:
     class: classes\classBundle\Models\privateMessagesModel
     arguments:    [@service_container]
    subscriptionsModel:
     class: classes\classBundle\Models\subscriptionsModel
     arguments:    [@service_container] 
    otakusImagesModel:
     class: classes\classBundle\Models\otakusImagesModel
     arguments:    [@service_container]  
    categoriesModel:
     class: classes\classBundle\Models\categoriesModel
     arguments:    [@service_container]
    forumsModel:
     class: classes\classBundle\Models\forumsModel
     arguments:    [@service_container]