protected function newAdldapUserQuery($provider = null, $filter = null)
{
$query = $this->getAdldap($provider)->search()->users();
if ($filter = $this->getLimitationFilter() ?: $filter) {
// If we're provided a login limitation filter,
// we'll add it to the user query.
$query->rawFilter($filter);
}
return $query->select($this->getSelectAttributes());
}