private function insertUser(Request $request)
{
$email = $request->get('email');
$password = $request->get('password');
$user = new User();
$user->setEmail($email);
$user->setPassword($this->hasher->hashPassword($password));
$user->setRole(UserRole::ROLE_USER);
$this->em->persist($user);
$this->em->flush();
}