我处理事情的方式是这样的：
首先，我为每个实体注册一个服务。这是在Module.php中完成的
public function getServiceConfig()
{
return array(
'factories' => array(
'my-service-entityname' => 'My\Factory\EntitynameServiceFactory',
)
);
}
接下来是创建工厂类src\My\Factory\EntitynameServiceFactory.php。这是您将 EntityManager 注入 Entity-Services 的部分（而不是注入实体本身，实体根本不需要这种依赖关系）
这个类看起来像这样：
<?php
namespace My\Factory;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\ServiceManager\FactoryInterface;
use My\Service\EntitynameService;
class EntitynameServiceFactory implements FactoryInterface
{
public function createService(ServiceLocatorInterface $serviceLocator)
{
$service = new EntitynameService();
$service->setEntityManager($serviceLocator->get('Doctrine\ORM\EntityManager'));
return $service;
}
}
接下来是创建src\My\Service\EntitynameService.php。这实际上是您创建所有 getter 函数和东西的部分。我个人从全局DoctrineEntityService扩展这些服务，现在我将首先为您提供EntitynameService的代码。所有这一切都是为了获得正确的存储库！
<?php
namespace My\Service;
class EntitynameService extends DoctrineEntityService
{
public function getEntityRepository()
{
if (null === $this->entityRepository) {
$this->setEntityRepository($this->getEntityManager()->getRepository('My\Entity\Entityname'));
}
return $this->entityRepository;
}
}
到这里为止的这一部分应该很容易理解（我希望），但这还不是很有趣。魔术正在全球DoctrineEntityService发生。这就是代码！
<?php
namespace My\Service;
use Zend\EventManager\EventManagerAwareInterface;
use Zend\EventManager\EventManagerInterface;
use Zend\ServiceManager\ServiceManagerAwareInterface;
use Zend\ServiceManager\ServiceManager;
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\EntityRepository;
class DoctrineEntityService implements
ServiceManagerAwareInterface,
EventManagerAwareInterface
{
protected $serviceManager;
protected $eventManager;
protected $entityManager;
protected $entityRepository;
/**
* Returns all Entities
*
* @return EntityRepository
*/
public function findAll()
{
$this->getEventManager()->trigger(__FUNCTION__ . '.pre', $this, array('entities' => $entities));
$entities = $this->getEntityRepository()->findAll();
$this->getEventManager()->trigger(__FUNCTION__ . '.post', $this, array('entities' => $entities));
return $entities;
}
public function find($id) {
return $this->getEntityRepository()->find($id);
}
public function findByQuery(\Closure $query)
{
$queryBuilder = $this->getEntityRepository()->createQueryBuilder('entity');
$currentQuery = call_user_func($query, $queryBuilder);
// \Zend\Debug\Debug::dump($currentQuery->getQuery());
return $currentQuery->getQuery()->getResult();
}
/**
* Persists and Entity into the Repository
*
* @param Entity $entity
* @return Entity
*/
public function persist($entity)
{
$this->getEventManager()->trigger(__FUNCTION__ . '.pre', $this, array('entity'=>$entity));
$this->getEntityManager()->persist($entity);
$this->getEntityManager()->flush();
$this->getEventManager()->trigger(__FUNCTION__ . '.post', $this, array('entity'=>$entity));
return $entity;
}
/**
* @param \Doctrine\ORM\EntityRepository $entityRepository
* @return \Haushaltportal\Service\DoctrineEntityService
*/
public function setEntityRepository(EntityRepository $entityRepository)
{
$this->entityRepository = $entityRepository;
return $this;
}
/**
* @param EntityManager $entityManager
* @return \Haushaltportal\Service\DoctrineEntityService
*/
public function setEntityManager(EntityManager $entityManager)
{
$this->entityManager = $entityManager;
return $this;
}
/**
* @return EntityManager
*/
public function getEntityManager()
{
return $this->entityManager;
}
/**
* Inject an EventManager instance
*
* @param EventManagerInterface $eventManager
* @return \Haushaltportal\Service\DoctrineEntityService
*/
public function setEventManager(EventManagerInterface $eventManager)
{
$this->eventManager = $eventManager;
return $this;
}
/**
* Retrieve the event manager
* Lazy-loads an EventManager instance if none registered.
*
* @return EventManagerInterface
*/
public function getEventManager()
{
return $this->eventManager;
}
/**
* Set service manager
*
* @param ServiceManager $serviceManager
* @return \Haushaltportal\Service\DoctrineEntityService
*/
public function setServiceManager(ServiceManager $serviceManager)
{
$this->serviceManager = $serviceManager;
return $this;
}
/**
* Get service manager
*
* @return ServiceManager
*/
public function getServiceManager()
{
return $this->serviceManager;
}
}
那么这有什么作用呢？这个DoctrineEntityService几乎是您在全球范围内所需要的（根据我目前的经验）。它有fincAll(),find($id)和findByQuery($closure)
您的下一个问题（希望如此）只会是“现在如何从我的控制器中使用它？”。就像调用您在第一步中设置的服务一样简单！假设您的控制器中有此代码
public function someAction()
{
/** @var $entityService \my\Service\EntitynameService */
$entityService = $this->getServiceLocator()->get('my-service-entityname');
// A query that finds all stuff
$allEntities = $entityService->findAll();
// A query that finds an ID
$idEntity = $entityService->find(1);
// A query that finds entities based on a Query
$queryEntity = $entityService->findByQuery(function($queryBuilder){
/** @var $queryBuilder\Doctrine\DBAL\Query\QueryBuilder */
return $queryBuilder->orderBy('entity.somekey', 'ASC');
});
}
该函数findByQuery()需要一个闭包。（$queryBuilder或者您可以选择如何命名该变量）将是\Doctrine\DBAL\Query\QueryBuilder. 不过，这将永远联系在一起ONE Repository！因此entity.somekey，这entity.将是您当前正在使用的任何存储库。
如果您需要访问，EntityManager您要么只实例化，DoctrineEntityService要么调用$entityService->getEntityManager()并从那里继续。
我不知道这种方法是否过于复杂或其他什么。在设置新的 Entity/EntityRepository 时，您需要做的就是添加一个新的工厂和一个新的服务。这两个几乎都是复制粘贴，每个类中都有两行代码更改。
我希望这已经回答了您的问题，并让您了解如何组织 ZF2 的工作。