public function checkStock(ProductSaleElementUpdateEvent $productSaleElementUpdateEvent)
{
if ($productSaleElementUpdateEvent->getQuantity() > 0) {
// add extra checking
$pse = ProductSaleElementsQuery::create()->findPk($productSaleElementUpdateEvent->getProductSaleElementId());
$availabilityEvent = new ProductSaleElementAvailabilityEvent($pse);
$productSaleElementUpdateEvent->getDispatcher()->dispatch(StockAlertEvents::STOCK_ALERT_CHECK_AVAILABILITY, $availabilityEvent);
if ($availabilityEvent->isAvailable()) {
$subscribers = RestockingAlertQuery::create()->filterByProductSaleElementsId($productSaleElementUpdateEvent->getProductSaleElementId())->find();
if (null !== $subscribers) {
foreach ($subscribers as $subscriber) {
try {
$this->sendEmail($subscriber);
$subscriber->delete();
} catch (\Exception $ex) {
}
}
}
}
}
}
