Symfony2: Injecting @ security.context to get the current user. How to avoid a ServiceCircularReferenceException? Enter the entire container?

Question

Based on this message , and after correcting the situation, I have another question / problem / problem.

As you can see in another post, I'm trying to inject a security context into a listener, but if I leave the code unchanged, I get this error:

ServiceCircularReferenceException: A circular reference was found for service "doctrine.orm.default_entity_manager"

So, reading and researching, I found a solution, but it is not clear to me whether it is correct or if it is protected for my application. So here is what I did:

Instead of input, [@security.context]I did this:

services:
    orderhascomment.listener:
        class: PL\OrderBundle\Listener\OrderHasCommentListener
        arguments: [@service_container]
        tags:
            - { name: doctrine.event_listener, event: prePersist, method: onPrePersist }

OrderHasCommentListener.php :

namespace PL\OrderBundle\Listener;

use Doctrine\ORM\Event\LifecycleEventArgs;
use Symfony\Component\DependencyInjection\ContainerInterface;

class OrderHasCommentListener {

    protected $container;

    public function __construct(ContainerInterface $container = null) {
        $this->container = $container;
    }

    /**
     *
     * @param LifecycleEventArgs $args 
     */
    public function onPrePersist(LifecycleEventArgs $args) {

        $entity = $args->getEntity();
        $user = $this->container->get('security.context')->getToken()->getUser();
        $entity->setUser($user);
    }

}

? ? , , , ? (https://insight.sensiolabs.com/what-we-analyse)

UserCallable

UserCallable , DoctrineBehaviors orm-services.yml , BlameableListener, , :

ContextErrorException: Catchable Fatal Error: 1 PL\OrderBundle\Listener\OrderHasCommentListener:: __ construct() , ,

app/config/config.yml:

services:
    orderhascomment.listener:
        class: PL\OrderBundle\Listener\OrderHasCommentListener
        arguments: 
            - user_callable
        tags:
            - { name: doctrine.event_listener, event: prePersist, method: onPrePersist }
    user_callable:
        class: PL\OrderBundle\Util\UserCallable
        arguments:
            - "@service_container"
        public:  false

__construct() OrderHasCommentListener.php:

/**
 * @param UserCallableInterface $user_callable 
 * */
public function __construct(callable $user_callable = null) {
    $this->userCallable = $user_callable;
}

?

Answer 1

... :)

a UserCallable, .

, , (-interface). ...

Knp\DoctrineBehaviors\ORM\Blameable\UserCallable

. , .

:

namespace Acme\Common;

interface UserCallableInterface
{
    /**
     * @return \Symfony\Component\Security\Core\User\UserInterface
     */
    public function getCurrentUser();
}

---

namespace Acme\Common;

use Symfony\Component\Security\Core\User\UserInterface;

interface TrackableInterface
{
    /**
     * @param UserInterface $user
     */
    public function setUser(UserInterface $user);
}

UserCallable:

namespace Acme\Util;

use Acme\Common\UserCallableInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

class UserCallable implements UserCallableInterface
{
   /** @var ContainerInterface **/
   protected $container;

   /** 
    * @param ContainerInterface $container
    */
   public function __construct(ContainerInterface $container)
   {
      $this->container = $container;
   }

   /**
    * @{inheritdoc}
    */
   public function getCurrentUser()
   {
      return $this->container->get('security.context')->getToken()->getUser() ?: false;
   }

:

use Acme\Common\UserCallableInterface;
use Acme\Common\TrackableInterface;
use Doctrine\Common\EventArgs;

class Listener
{
    /** @var UserCallableInterface **/
    protected $userCallable;

    /** 
     * @param UserCallableInterface $user_callable 
     **/    
    public function __construct(UserCallableInterface $user_callable)
    {
       $this->userCallable = $user_callable;
    }

    /** 
     * @param EventArgs $args 
     **/
    public function onPrePersist(EventArgs $args)
    {
       $entity = $args->getEntity();

       if ( !($entity instanceof TrackableInterface) ) {
           return;
       }

       if ( !($user = $this->userCallable->getCurrentUser())) {
           return;
       }

       $entity->setUser($user);
    }      
}