public function subtractQuoteInventory(Varien_Event_Observer $observer)
{
if (!Mage::helper('udmulti')->isActive()) {
return parent::subtractQuoteInventory($observer);
}
$quote = $observer->getEvent()->getQuote();
// Maybe we've already processed this quote in some event during order placement
// e.g. call in event 'sales_model_service_quote_submit_before' and later in 'checkout_submit_all_after'
if ($quote->getInventoryProcessed()) {
return;
}
$update = array();
$allPids = array();
foreach ($quote->getAllItems() as $item) {
if (!$item->getChildren()) {
$pId = $item->getProductId();
$vId = $item->getUdropshipVendor();
$v = Mage::helper('udropship')->getVendor($vId);
if (!$v->getId() && $v->getStockcheckMethod()) {
continue;
}
$allPids[$pId] = $pId;
if (isset($update[$vId][$pId])) {
$update[$vId][$pId]['stock_qty_add'] -= $item->getTotalQty();
} else {
$update[$vId][$pId] = array('stock_qty_add' => -$item->getTotalQty());
}
}
}
if (empty($allPids)) {
return $this;
}
$siData = Mage::getResourceSingleton('udropship/helper')->loadDbColumnsForUpdate(Mage::getModel('cataloginventory/stock_item'), array('product_id' => $allPids), array('backorders', 'use_config_backorders'));
$hlpm = Mage::helper('udmulti');
$rHlp = Mage::getResourceSingleton('udropship/helper');
$conn = $rHlp->getReadConnection();
foreach ($update as $vId => $_update) {
$mvData = $rHlp->loadDbColumnsForUpdate(Mage::getModel('udropship/vendor_product'), array('product_id' => array_keys($_update)), array('backorders', 'stock_qty', 'product_id', 'avail_state', 'avail_date', 'status'), $conn->quoteInto('{{table}}.vendor_id=?', $vId));
foreach ($_update as $pId => $_prod) {
$qtyCheck = abs($_prod['stock_qty_add']);
if (!array_key_exists($pId, $mvData)) {
if (Mage::app()->getStore()->isAdmin()) {
continue;
}
Mage::throwException(Mage::helper('cataloginventory')->__('Stock configuration problem'));
}
$_mv = $mvData[$pId];
if (!$hlpm->isQtySalableByVendorData($qtyCheck, (array) @$siData[$pId], $vId, $_mv)) {
if (Mage::app()->getStore()->isAdmin()) {
continue;
}
Mage::throwException(Mage::helper('cataloginventory')->__('Not all products are available in the requested quantity'));
}
}
}
foreach ($update as $vId => $_update) {
Mage::helper('udmulti')->setReindexFlag(false);
Mage::helper('udmulti')->saveThisVendorProductsPidKeys($_update, $vId);
Mage::helper('udmulti')->setReindexFlag(true);
}
$quote->setInventoryProcessed(true);
return $this;
}
