Symfony2: Inject current user in Service

Question

I am trying to inject the currently logged in user into a service. My goal is to extend some twig functionality to output it based on user preferences. In this example I wan

Answer 1

I think that this question deserves an updated answer since 2.6.x+ since the new security component improvements.

use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage;

class UserDateExtension extends \Twig_Extension
{
    /**
     * @var TokenStorage
     */
    protected $tokenStorage;


    /**
     * @param \Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage    $tokenStorage
     */
    public function __construct(TokenStorage $tokenStorage)
    {
        $this->tokenStorage = $tokenStorage;
    }

    public function getUser()
    {
        return $this->tokenStorage->getToken()->getUser();
    }

    public function getFilters()
    {
        return array(
            'user_date' => new \Twig_Filter_Method($this, "formatUserDate"),
        );
    }

    public function formatUserDate($date, $format)
    {
        $user = $this->getUser();
        // do stuff
    }
}

Services.yml

twig.date_extension:
    class: Acme\Twig\SpecialDateExtension
    tags:
        - { name: twig.extension }
    arguments:
        - "@security.token_storage"