/**
* Add a rate to the result
*
* @param Mage_Shipping_Model_Rate_Result_Abstract|Mage_Shipping_Model_Rate_Result $result
*/
public function append($result)
{
if ($result instanceof Mage_Shipping_Model_Rate_Result_Abstract) {
$this->_rates[] = $result;
} elseif ($result instanceof Mage_Shipping_Model_Rate_Result) {
$rates = $result->getAllRates();
foreach ($rates as $rate) {
$this->append($rate);
}
}
return $this;
}
