public function getBackorders()
{
$isMP = Mage::helper('udropship')->isModuleActive('Unirgy_DropshipVendorProduct');
if (!$isMP) {
$backorders = parent::getBackorders();
} else {
$backorders = $this->getData('backorders');
if ($this->getUseConfigBackorders()) {
$productVendor = $this->getUdropshipVendor();
$backorders = $productVendor ? (int) Mage::helper('udropship')->getVendorUseCustomFallbackField($productVendor, 'is_udprod_backorders', 'udprod_backorders', self::XML_PATH_BACKORDERS) : (int) Mage::getStoreConfigFlag(self::XML_PATH_BACKORDERS);
}
}
Mage::dispatchEvent('udropship_stock_item_getBackorders', array('item' => $this, 'vars' => array('backorders' => &$backorders)));
return $backorders;
}
/**
* Check if the given quote item is allocatable.
*
* @param Mage_CatalogInventory_Model_Stock_Item
* @return bool
*/
protected function isAllocatable(Mage_CatalogInventory_Model_Stock_Item $stockItem)
{
return (int) $stockItem->getBackorders() === Mage_CatalogInventory_Model_Stock::BACKORDERS_NO || (int) $stockItem->getQty();
}
/**
* If the inventory configuration allow order item to be backorderable simply check if the
* Manage stock for the item is greater than zero. Otherwise, if the inventory configuration
* do not allow order items to be backorderable, then ensure the item is not backorder and has
* manage stock.
*
* @param Mage_CatalogInventory_Model_Stock_Item
* @return bool
*/
protected function isManagedStock(Mage_CatalogInventory_Model_Stock_Item $stock)
{
return ($this->_config->isBackorderable || (int) $stock->getBackorders() === Mage_CatalogInventory_Model_Stock::BACKORDERS_NO) && $stock->getManageStock() > 0;
}
