public static bool AddPurchaseOrderItem(PurchaseShoppingCartItemInfo item, string POrderId)
{
SubsiteSalesProvider provider = SubsiteSalesProvider.Instance();
int currentPOrderItemQuantity = provider.GetCurrentPOrderItemQuantity(POrderId, item.SkuId);
if (currentPOrderItemQuantity == 0)
{
return(provider.AddPurchaseOrderItem(item, POrderId));
}
return(provider.UpdatePurchaseOrderQuantity(POrderId, item.SkuId, item.Quantity + currentPOrderItemQuantity));
}