/**
* Checks if a username is unique
* Null and empty will always return false.
*
* @param string $username
*
* @return bool
*/
public function isUsernameUnique($username)
{
if ($username) {
try {
$this->userRepository->findUserByUsername($username);
} catch (NoResultException $exc) {
return true;
}
}
return false;
}
