/**
* Fetches the regular and base discount amounts due to
* catalog redemption rules.
* TODO: perhaps this should be moved to a helper (along with TBT_Rewards_Model_Sales_Order_Total_Abstract) but
* I'm not sure which helper would be best for it.
* @param TBT_Rewards_Model_Sales_Order $order
*/
protected function getAccumulatedDiscounts($order)
{
//@nelkaake -a 17/02/11: if the rewards discount amount field is not found
// use the legacy code to find the discount aqmount using the row total
if (!$order->getRewardsDiscountAmount()) {
return 0;
//$this->_getDiscountsByRowTotalInclTax($order);
}
$acc_diff = $order->getRewardsDiscountAmount();
// + $order->getRewardsDiscountTaxAmount();
$acc_diff = $order->getStore()->roundPrice($acc_diff);
$acc_diff_base = $order->getRewardsBaseDiscountAmount();
$acc_diff_base = $order->getStore()->roundPrice($acc_diff_base);
// @nelkaake to deal with a bug in PHP that allows negative zero amounts after rounding.
if ($acc_diff == -0) {
$acc_diff = 0;
}
if ($acc_diff_base == -0) {
$acc_diff_base = 0;
}
return array($acc_diff, $acc_diff_base);
}
/**
* If the row total + tax does not equal the row_total_incl_tax, we know that we
* can use the row_total_incl_tax field to get the rewards catalog discount amount total.
* @deprecated getAccumulatedDiscounts uses the data stored in the Order that is much more accurate instead.
* @param TBT_Rewards_Model_Sales_Order $order
*/
protected function _getDiscountsByRowTotalInclTax($order)
{
$items = $order->getAllItems();
$acc_diff = 0;
$acc_diff_base = 0;
if (!is_array($items)) {
$items = array($items);
}
foreach ($items as $item) {
if (!$item->getOrderId() || !$item->getId()) {
continue;
}
//@nelkaake -a 17/02/11: If the row total + tax does not equal the row_total_incl_tax, we know that we
// can use the row_total_incl_tax field to get the rewards catalog discount amount total.
if ($item->getRowTotalInclTax() == $item->getTaxAmount() + $item->getRowTotal()) {
// row total plus tax and row total including tax are the same so we can't use this field
// to get the catalog redemption amount.
continue;
}
$regular_row_total = $item->getRowTotalInclTax() - $item->getTaxAmount();
$row_total = $item->getRowTotal();
$acc_diff += $regular_row_total - $row_total;
}
$acc_diff = $order->getStore()->roundPrice($acc_diff);
$acc_diff_base = Mage::helper('rewards/price')->getReversedCurrencyPrice($acc_diff);
// @nelkaake to deal with a bug in PHP that allows negative zero amounts after rounding.
if ($acc_diff == -0) {
$acc_diff = 0;
}
if ($acc_diff_base == -0) {
$acc_diff_base = 0;
}
return array($acc_diff, $acc_diff_base);
}
