service injection in repo

ProjectRepository

<?php

namespace Comakai\TicketsBundle\Repository;

use Doctrine\ORM\EntityRepository;
use Comakai\TicketsBundle\Entity\User;
use JMS\DiExtraBundle\Annotation as DI;
use Symfony\Component\Security\Core\SecurityContext;

class ProjectRepository extends EntityRepository
{

    /** @var \Symfony\Component\Security\Core\SecurityContext */
    private $securityContext;

    /**
     * @DI\InjectParams({
     *     "securityContext" = @DI\Inject("security.context"),
     * })
     */
    public function setSecurityContext(SecurityContext $securityContext)
    {
        $this->securityContext = $securityContext;
    }

    public function findAllForUser()
    {

        if ($this->securityContext->isGranted('ROLE_ADMIN')) {

            return $this->findAll();
        }

        return $this
                        ->createQueryBuilder('a')
                        ->join('a.users', 'b')
                        ->where('b = :user')
                        ->setParameter('user', $this->securityContext->getToken()->getUser())
                        ->getQuery()
                        ->getResult();
    }

    public function findOneForUser()
    {
        $qb = $this->createQueryBuilder('a')->setMaxResults(1);

        if ($this->securityContext->isGranted('ROLE_ADMIN')) {

            return $qb->getQuery()->getOneOrNullResult();
        }

        return $qb
                        ->join('a.users', 'b')
                        ->where('b = :user')
                        ->setParameter('user', $this->securityContext->getToken()->getUser())
                        ->getQuery()
                        ->getOneOrNullResult();
    }

}