public function onBeforeUpdate($cart_item)
{
// Check that item is not out of stock or has enough stock
if ($cart_item->Quantity) {
$item = $cart_item->FindStockItem();
$stock = $item->StockLevel ? $item->StockLevel : 0;
if ($stock < $cart_item->Quantity && !CommerceStockKeeping::config()->allow_adding) {
// Set quantity to the level we have in stock
$cart_item->Quantity = $stock;
throw new ValidationException(_t("StockKeeping.NotEnoughStock", "There are not enough '{title}' in stock", "Message to show that an item hasn't got enough stock", array('title' => $item->Title)));
}
}
}
public function onBeforeWrite()
{
parent::onBeforeWrite();
$status = CommerceStockKeeping::config()->completion_status;
$allow_negative = CommerceStockKeeping::config()->allow_negative;
// If we have just changed the order status and it matches loop
// all products and update quantities.
if ($this->owner->isChanged("Status") && $this->owner->Status == $status) {
foreach ($this->owner->Items() as $order_item) {
$product = $order_item->Product();
if ($order_item->Quantity && $product->ID) {
$product->StockLevel = $product->StockLevel - $order_item->Quantity;
if (!$allow_negative && $product->StockLevel < 0) {
$product->StockLevel == 0;
}
$product->write();
}
}
}
}
