/**
* @throws OnlineShop_Framework_Exception_UnsupportedException
*/
public function calculate()
{
//sum up all item prices
$subTotal = 0;
$currency = null;
foreach ($this->cart->getItems() as $item) {
if (is_object($item->getPrice())) {
if (!$currency) {
$currency = $item->getPrice()->getCurrency();
}
if ($currency->compare($item->getPrice()->getCurrency()) != 0) {
throw new OnlineShop_Framework_Exception_UnsupportedException("Different currencies within one cart are not supported");
}
$subTotal += $item->getTotalPrice()->getAmount();
}
}
//by default currency is retrieved from item prices. if there are no items, its loaded from the default locale defined in the environment
if (!$currency) {
$currency = $this->getDefaultCurrency();
}
$this->subTotal = $this->getDefaultPriceObject($subTotal, $currency);
//consider all price modificators
$currentSubTotal = $this->getDefaultPriceObject($subTotal, $currency);
$this->modifications = array();
foreach ($this->modificators as $modificator) {
/* @var OnlineShop_Framework_ICartPriceModificator $modificator */
$modification = $modificator->modify($currentSubTotal, $this->cart);
if ($modification !== null) {
$this->modifications[$modificator->getName()] = $modification;
$currentSubTotal->setAmount($currentSubTotal->getAmount() + $modification->getAmount());
}
}
$this->gradTotal = $currentSubTotal;
$this->isCalculated = true;
}
public function updateOfferFromCart(OnlineShop_OfferTool_AbstractOffer $offer, OnlineShop_Framework_ICart $cart, array $excludeItems = array(), $save = true)
{
$excludedItemKeys = $this->getExcludedItemKeys($excludeItems);
if ($cart->getId() != $offer->getCartId()) {
throw new Exception("Cart does not match to the offer given, update is not possible");
}
//Update existing offer items
$offerItems = $offer->getItems();
$newOfferItems = array();
foreach ($offerItems as $offerItem) {
$cartItem = $cart->getItem($offerItem->getCartItemKey());
if ($cartItem && !$excludedItemKeys[$offerItem->getCartItemKey()]) {
$newOfferItems[$offerItem->getCartItemKey()] = $this->updateOfferItem($cartItem, $offerItem);
}
}
//Add non existing cart items to offer
$cartItems = $cart->getItems();
foreach ($cartItems as $cartItem) {
if (!$newOfferItems[$cartItem->getItemKey()] && !$excludedItemKeys[$cartItem->getItemKey()]) {
$offerItem = $this->createOfferItem($cartItem, $offer);
$newOfferItems[$offerItem->getCartItemKey()] = $offerItem;
}
}
//Delete offer items which are not needed any more
foreach ($offerItems as $offerItem) {
if (!$newOfferItems[$offerItem->getCartItemKey()]) {
$offerItem->delete();
}
}
$offer->setItems($newOfferItems);
//Update total price
$offer = $this->updateTotalPriceOfOffer($offer);
if ($save) {
$offer->save();
}
return $offer;
}