public function scopeProvince($query, $province)
{
if (!empty($province) && $province != '0') {
$nhservers = Nhserver::province($province);
if ($nhservers) {
$ids = array();
foreach ($nhservers as $nhserver) {
$ids[] = $nhserver->id;
}
return $query->whereIn('location_id', $ids);
}
}
return $query;
}