php 将 SecurityContext 注入 Symfony2 中的侦听器 prePersist 或 preUpdate 以在 createdBy 或 updatedBy 中获取用户导致循环引用错误
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Injecting SecurityContext into a Listener prePersist or preUpdate in Symfony2 to get User in a createdBy or updatedBy Causes Circular Reference Error
提问by Jeremy
I setup a listener class where i'll set the ownerid column on any doctrine prePersist. My services.yml file looks like this ...
我设置了一个监听器类，在那里我将在任何学说 prePersist 上设置 ownerid 列。我的 services.yml 文件看起来像这样......
services:
my.listener:
class: App\SharedBundle\Listener\EntityListener
arguments: ["@security.context"]
tags:
- { name: doctrine.event_listener, event: prePersist }
and my class looks like this ...
我的班级看起来像这样......
use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\Security\Core\SecurityContextInterface;
class EntityListener
{
protected $securityContext;
public function __construct(SecurityContextInterface $securityContext)
{
$this->securityContext = $securityContext;
}
/**
*
* @param LifecycleEventArgs $args
*/
public function prePersist(LifecycleEventArgs $args)
{
$entity = $args->getEntity();
$entityManager = $args->getEntityManager();
$entity->setCreatedby();
}
}
The result of this is the following error.
这样做的结果是以下错误。
ServiceCircularReferenceException: Circular reference detected for service "doctrine.orm.default_entity_manager", path: "doctrine.orm.default_entity_manager -> doctrine.dbal.default_connection -> my.listener -> security.context -> security.authentication.manager -> fos_user.user_manager".
ServiceCircularReferenceException：检测到服务“doctrine.orm.default_entity_manager”的循环引用，路径：“doctrine.orm.default_entity_manager -> Doctrine.dbal.default_connection -> my.listener -> security.context -> security.authentication.manager -> fos_user .user_manager”。
My assumption is that the security context has already been injected somewhere in the chain but I don't know how to access it. Any ideas?
我的假设是安全上下文已经注入链中的某个地方，但我不知道如何访问它。有任何想法吗？
回答by gilden
I had similar problems and the only workaround was to pass the whole container in the constructor (arguments: ['@service_container']).
我遇到了类似的问题，唯一的解决方法是在构造函数 ( arguments: ['@service_container']) 中传递整个容器。
use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\DependencyInjection\ContainerInterface;
class MyListener
{
protected $container;
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
// ...
public function prePersist(LifeCycleEventArgs $args)
{
$securityContext = $this->container->get('security.context');
// ...
}
}
回答by Anyone
As of Symfony 2.6 this issue should be fixed. A pull request has just been accepted into the master. Your problem is described in here. https://github.com/symfony/symfony/pull/11690
从 Symfony 2.6 开始，这个问题应该被修复。一个 pull request 刚刚被 master 接受。您的问题在此处描述。 https://github.com/symfony/symfony/pull/11690
As of Symfony 2.6, you can inject the security.token_storageinto your listener. This service will contain the token as used by the SecurityContextin <=2.5. In 3.0 this service will replace the SecurityContext::getToken()altogether. You can see a basic change list here: http://symfony.com/blog/new-in-symfony-2-6-security-component-improvements#deprecated-the-security-context-service
从 Symfony 2.6 开始，您可以将 注入security.token_storage到您的侦听器中。此服务将包含SecurityContext<=2.5 中使用的令牌。在 3.0 中，此服务将SecurityContext::getToken()完全取代。您可以在此处查看基本更改列表：http: //symfony.com/blog/new-in-symfony-2-6-security-component-improvements#deprecated-the-security-context-service
Example usage in 2.6:
2.6 中的示例用法：
Your configuration:
您的配置：
services:
my.entityListener:
class: App\SharedBundle\Listener\EntityListener
arguments:
- "@security.token_storage"
tags:
- { name: doctrine.event_listener, event: prePersist }
Your Listener
你的听众
namespace App\SharedBundle\Listener;
use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
class EntityListener
{
private $token_storage;
public function __construct(TokenStorageInterface $token_storage)
{
$this->token_storage = $token_storage;
}
public function prePersist(LifecycleEventArgs $args)
{
$entity = $args->getEntity();
$entity->setCreatedBy($this->token_storage->getToken()->getUsername());
}
}
For a nice created_by example, you can use https://github.com/hostnet/entity-blamable-component/blob/master/src/Listener/BlamableListener.phpfor inspiration. It uses the hostnet/entity-tracker-component which provides a special event that is fired when an entity is changed during your request. There's also a bundle to configure this in Symfony2
对于一个不错的 created_by 示例，您可以使用https://github.com/hostnet/entity-blamable-component/blob/master/src/Listener/BlamableListener.php获取灵感。它使用 hostnet/entity-tracker-component 提供一个特殊事件，当您的请求期间实体发生更改时会触发该事件。还有一个包可以在 Symfony2 中配置它
回答by Nikita Leshchev
There's a great answer already in this thread but everything changes. Now there're entity listeners classes in Doctrine: http://docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/events.html#entity-listeners-class
这个线程中已经有一个很好的答案，但一切都变了。现在 Doctrine 中有实体侦听器类：http: //docs.doctrine-project.org/projects/doctrine-orm/en/latest/reference/events.html#entity-listeners-class
So you can add an annotation to your entity like:
因此，您可以向实体添加注释，例如：
/**
* @ORM\EntityListeners({"App\Entity\Listener\PhotoListener"})
* @ORM\Entity(repositoryClass="App\Repository\PhotoRepository")
*/
class Photo
{
// Entity code here...
}
And create a class like this:
并创建一个这样的类：
class PhotoListener
{
private $container;
function __construct(ContainerInterface $container)
{
$this->container = $container;
}
/** @ORM\PreRemove() */
public function preRemoveHandler(Photo $photo, LifecycleEventArgs $event): void
{
// Some code here...
}
}
Also you should define this listener in services.ymllike that:
你也应该services.yml像这样定义这个监听器：
photo_listener:
class: App\Entity\Listener\PhotoListener
public: false
autowire: true
tags:
- {name: doctrine.orm.entity_listener}
回答by Calin Bolea
I use the doctrine config files to set preUpdateor prePersistmethods:
我使用教义配置文件来设置preUpdate或prePersist方法：
Project\MainBundle\Entity\YourEntity:
type: entity
table: yourentities
repositoryClass: Project\MainBundle\Repository\YourEntitytRepository
fields:
id:
type: integer
id: true
generator:
strategy: AUTO
lifecycleCallbacks:
prePersist: [methodNameHere]
preUpdate: [anotherMethodHere]
And the methods are declared in the entity, this way you don't need a listener and if you need a more general method you can make a BaseEntity to keep that method and extend the other entites from that. Hope it helps!
并且方法在实体中声明，这样您就不需要侦听器，如果您需要更通用的方法，您可以创建一个 BaseEntity 来保留该方法并从中扩展其他实体。希望能帮助到你！
