/**
* {@inheritdoc}
*/
public function decrease($inventoryUnits)
{
if (!is_array($inventoryUnits) && !$inventoryUnits instanceof Collection) {
throw new \InvalidArgumentException('Inventory units value must be array or instance of "Doctrine\\Common\\Collections\\Collection".');
}
$quantity = count($inventoryUnits);
if ($quantity < 1) {
throw new \InvalidArgumentException('Quantity of units must be greater than 0.');
}
if ($inventoryUnits instanceof Collection) {
$stockable = $inventoryUnits->first()->getStockable();
} else {
$stockable = $inventoryUnits[0]->getStockable();
}
if (!$this->availabilityChecker->isStockSufficient($stockable, $quantity)) {
throw new InsufficientStockException($stockable, $quantity);
}
$this->eventDispatcher->dispatch(SyliusStockableEvents::PRE_DECREASE, new GenericEvent($stockable));
$this->backordersHandler->processBackorders($inventoryUnits);
$onHand = $stockable->getOnHand();
foreach ($inventoryUnits as $inventoryUnit) {
if (InventoryUnitInterface::STATE_SOLD === $inventoryUnit->getInventoryState()) {
--$onHand;
}
}
$stockable->setOnHand($onHand);
$this->eventDispatcher->dispatch(SyliusStockableEvents::POST_DECREASE, new GenericEvent($stockable));
}
/**
* {@inheritdoc}
*
* Fills backorders using backorders handler.
*
* @param GenericEvent $event
*/
public function onInventoryChange(GenericEvent $event)
{
$this->backordersHandler->fillBackorders($event->getSubject());
}