/**
* @inheritdoc
*/
public function getUniqueByFetcher(Fetcher $fetcher)
{
$fetcher->setPage(1);
$fetcher->setNbByPage(2);
$ids = $this->getIdsByFetcher($fetcher);
if (empty($ids)) {
return null;
}
if (count($ids) === 2) {
throw new NotUniqueResultException();
}
return $this->manager->getById(reset($ids));
}
