/**
* Load rates from known delivery zone
*
* @param DeliveryZone $deliveryZone
* @param bool $loadReferencedRecords
*
* @return ARSet
*/
public static function getRecordSetByDeliveryZone(DeliveryZone $deliveryZone = null, $loadReferencedRecords = array('Tax'))
{
$filter = new ARSelectFilter();
if (!$deliveryZone || $deliveryZone->isDefault()) {
$filter->setCondition(new IsNullCond(new ARFieldHandle(__CLASS__, "deliveryZoneID")));
} else {
$filter->setCondition(new EqualsCond(new ARFieldHandle(__CLASS__, "deliveryZoneID"), $deliveryZone->getID()));
}
return self::getRecordSet($filter, $loadReferencedRecords);
}
