public function getShippingRates($order)
{
$request = $this->prepareShippingRequest($order);
$shipping = Mage::getModel('shipping/shipping');
$result = $shipping->collectRates($request)->getResult();
if ($result) {
$rates = array();
foreach ($result->getAllRates() as $_rate) {
$rate = new Varien_Object();
$rate->setData($_rate->getData());
$carrier = $rate->getCarrier();
if (!isset($rates[$carrier])) {
$rates[$carrier] = array();
}
$rate->setCode($carrier . '_' . $rate->getMethod());
$rates[$carrier][$rate->getCode()] = $rate;
}
return $rates;
}
return null;
}
