/**
* Check qty increments
*
* @param int|float $qty
* @param Mage_CatalogInventory_Model_Stock_Item $stockItem
*
* @return Varien_Object
*/
public function checkQtyIncrements($stockItem, $qty)
{
$result = new Varien_Object();
$qtyIncrements = $stockItem->getQtyIncrements();
if ($qtyIncrements && Mage::helper('core')->getExactDivision($qty, $qtyIncrements) != 0) {
$result->setHasError(true)->setQuoteMessage(Mage::helper('cataloginventory')->__('Some of the products cannot be ordered in the requested quantity.'))->setErrorCode('qty_increments')->setQuoteMessageIndex('qty');
$result->setMessage(Mage::helper('cataloginventory')->__('This product is available for purchase in increments of %s only.', $qtyIncrements * 1));
}
return $result;
}
/**
* @param Mage_CatalogInventory_Model_Stock_Item $stockItem
*
* @return float|int
*/
protected function _getStackPriceMultiplicator($stockItem)
{
$priceMultiplier = 1;
if ($stockItem->getEnableQtyIncrements()) {
$stackQuantity = ceil($stockItem->getQtyIncrements());
if ($stackQuantity > 1) {
$priceMultiplier = $stackQuantity;
}
}
return $priceMultiplier;
}
/**
* Checks whether requested quantity is allowed taking into account that some amount already added to quote.
* Returns TRUE if everything is okay
* Returns array in below format on error:
* [
* 'status' => string (see Enterprise_Checkout_Helper_Data::ADD_ITEM_STATUS_FAILED_* constants),
* 'qty_max_allowed' => int (optional, if 'status'==ADD_ITEM_STATUS_FAILED_QTY_ALLOWED)
* ]
*
* @param Mage_CatalogInventory_Model_Stock_Item $stockItem
* @param Mage_Catalog_Model_Product $product
* @param float $requestedQty
* @return array|true
*/
public function getQtyStatus(Mage_CatalogInventory_Model_Stock_Item $stockItem, Mage_Catalog_Model_Product $product, $requestedQty)
{
$result = $stockItem->checkQuoteItemQty($requestedQty, $requestedQty);
if ($result->getHasError()) {
$return = array();
switch ($result->getErrorCode()) {
case 'qty_increments':
$status = Enterprise_Checkout_Helper_Data::ADD_ITEM_STATUS_FAILED_QTY_INCREMENTS;
$return['qty_increments'] = $stockItem->getQtyIncrements();
break;
case 'qty_min':
$status = Enterprise_Checkout_Helper_Data::ADD_ITEM_STATUS_FAILED_QTY_ALLOWED_IN_CART;
$return['qty_min_allowed'] = $stockItem->getMinSaleQty();
break;
case 'qty_max':
$status = Enterprise_Checkout_Helper_Data::ADD_ITEM_STATUS_FAILED_QTY_ALLOWED_IN_CART;
$return['qty_max_allowed'] = $stockItem->getMaxSaleQty();
break;
default:
$status = Enterprise_Checkout_Helper_Data::ADD_ITEM_STATUS_FAILED_QTY_ALLOWED;
$return['qty_max_allowed'] = $stockItem->getStockQty();
}
$return['status'] = $status;
$return['error'] = $result->getMessage();
return $return;
}
return true;
}
