public static function checkAvailableProductQuantity(BasketItem $basketItem, $deltaQuantity)
{
global $APPLICATION;
$result = new Result();
$resultProductData = array();
$orderId = null;
$userId = null;
$siteId = null;
/** @var Basket $basket */
$basket = $basketItem->getCollection();
if (($order = $basket->getOrder()) !== null) {
$userId = $order->getUserId();
$siteId = $order->getSiteId();
}
if ($userId === null || $siteId === null) {
static $usersIds = array();
if (empty($usersIds[$basket->getFUserId()])) {
$usersIds[$basket->getFUserId()] = \CSaleUser::GetUserID($basket->getFUserId());
}
$userId = $usersIds[$basket->getFUserId()];
$siteId = $basket->getSiteId();
}
if ($provider = $basketItem->getProvider()) {
if ($provider instanceof Provider) {
throw new NotSupportedException('provider not supported');
// $result = $provider::getProductData($siteId, $userId, $currency, $providerBasketItemList, $select);
} elseif ($provider && array_key_exists("IBXSaleProductProvider", class_implements($provider))) {
$needQuantity = $basketItem->getQuantity();
if ($order && $order->getId() > 0) {
$needQuantity = $deltaQuantity;
}
$data = array("PRODUCT_ID" => $basketItem->getProductId(), "QUANTITY" => $needQuantity, "USER_ID" => $userId, "SITE_ID" => $siteId, "BASKET_ID" => $basketItem->getId(), "CHECK_QUANTITY" => "Y", 'CHECK_PRICE' => 'N', 'CHECK_COUPONS' => 'N', "SELECT_QUANTITY_TRACE" => "Y");
// TODO: !
if ($deltaQuantity <= 0) {
$result->setData(array('AVAILABLE_QUANTITY' => $deltaQuantity));
return $result;
}
$APPLICATION->ResetException();
$resultProductData = $provider::GetProductData($data);
if ($ex = $APPLICATION->GetException()) {
$result->addError(new ResultError($ex->GetString(), $ex->GetID()));
}
} else {
$APPLICATION->ResetException();
$resultProductData = \CSaleBasket::ExecuteCallbackFunction($basketItem->getField('CALLBACK_FUNC'), $basketItem->getField('MODULE'), $basketItem->getProductId(), $basketItem->getQuantity());
if ($ex = $APPLICATION->GetException()) {
$result->addError(new ResultError($ex->GetString(), $ex->GetID()));
}
}
} else {
$availableQuantity = $basketItem->getQuantity();
if ($deltaQuantity <= 0) {
$availableQuantity = $deltaQuantity;
}
$result->setData(array('AVAILABLE_QUANTITY' => $availableQuantity));
return $result;
}
$fields = array();
if (array_key_exists('QUANTITY', $resultProductData)) {
$fields['AVAILABLE_QUANTITY'] = $resultProductData['QUANTITY'];
}
if (array_key_exists('QUANTITY_TRACE', $resultProductData)) {
$fields['QUANTITY_TRACE'] = $resultProductData['QUANTITY_TRACE'] == "Y";
}
if (!empty($fields)) {
$result->setData($fields);
}
return $result;
}
