/**
  * Lists all Refuel entities.
  *
  * @Route(".{_format}", name="refuels_index",
  *     defaults={"_format": "html"},
  *     requirements={
  *         "_format": "html|json|xml",
  *     }
  * )
  * @Method("GET")
  */
 public function indexAction(Vehicle $vehicle, $_format)
 {
     $refuels = $vehicle->getRefuels();
     return $this->render('refuel/index.' . $_format . '.twig', array('vehicle' => $vehicle, 'refuels' => $refuels));
 }