public function __invoke(Request $request)
{
$dql = "DELETE FROM PartKeepr\\TipOfTheDayBundle\\Entity\\TipOfTheDayHistory th WHERE th.user = :user";
$query = $this->entityManager->createQuery($dql);
$query->setParameter('user', $this->userService->getUser());
$query->execute();
return new Response('OK');
}