private function generateIdentity(User $user, $service, $username, OutputInterface $output)
{
$em = $this->getContainer()->get('doctrine.orm.entity_manager');
if (is_null($user->getExternalUserByService($service))) {
$e = new ExternalUser();
$e->setService($service)->setUser($user)->setName($user->getName())->setEmail($user->getEmail())->setUsername($username);
$user->addExternalUser($e);
$em->persist($e);
$output->writeln('Generated ' . ucfirst($service) . ' external user for ' . $user->getName());
}
}
