Developer forum

[6/26/2013 1:56:41 PM]:
Order 84820: Unexpected exception with the message: Method not found: 'Boolean Dynamicweb.eCommerce.Orders.SalesDiscounts.Voucher.isValid(System.String, Int32, System.String)'.

Logging 'Exception':
Type: System.MissingMethodException
Message: Method not found: 'Boolean Dynamicweb.eCommerce.Orders.SalesDiscounts.Voucher.isValid(System.String, Int32, System.String)'.
StackTrace:    at Dynamicweb.CustomModules.HjemIS.OrderCompleteVoucherUpdate.OnNotify(String notification, NotificationArgs args)
   at Dynamicweb.Extensibility.NotificationManager.Notify(String notification, Object[] args)
   at Dynamicweb.eCommerce.Cart.Frontend.CheckoutDone(Order order, Int32 pageID)

using System;
using System.Collections.Generic;

using Dynamicweb;
using Dynamicweb.Extensibility;
using Dynamicweb.eCommerce.Prices;
using Dynamicweb.eCommerce.Orders;
using Dynamicweb.eCommerce.Common;
using Dynamicweb.eCommerce.Products;
using Dynamicweb.eCommerce.Orders.SalesDiscounts;
using Dynamicweb.Extensibility.Editors;
using System.Collections;

namespace Dynamicweb.CustomModules.HjemIS
{
    [AddInName("Voucher List Discount.")]
    [AddInDescription("Voucher list discount, with options.")]
    public class VoucherListDiscount : SalesDiscountProvider, IDropDownOptions
    {

        #region Fields
        private int _voucherListID;
        private int _minOrderValue;
        #endregion

        #region Properties
        [AddInParameter("Voucherlist"), AddInParameterEditor(typeof(Dynamicweb.Extensibility.Editors.DropDownParameterEditor), "")]
        public int VoucherListDropdown
        {
            get { return _voucherListID; }
            set { _voucherListID = value; }
        }

        [AddInParameter("Min. order value ")
        , AddInParameterEditor(typeof(Extensibility.Editors.TextParameterEditor), "")]
        public int OrderValueLimit
        {
            get { return _minOrderValue; }
            set { _minOrderValue = value; }
        }

        public Hashtable GetOptions(string optionName)
        {
            Hashtable htOptions = new Hashtable();
            VoucherListCollection list = VoucherList.GetAllVoucherLists();

            switch (optionName)
            {
                case "Voucherlist":
                    foreach (VoucherList item in list)
                    {
                        htOptions.Add(item.ID, item.ListName);
                    }
                    break;
            }

            return htOptions;
        }

        #endregion

        #region Methods

        public override void ProcessOrder(Order o)
        {
            try
            {
                if (IsGetDiscount(o))
                {
                    Voucher OrderVoucher = Voucher.GetVoucherByCode(o.VoucherCode);

                    AddDiscount(o, base.DiscountValue.Amount);
                }
            }
            catch (Exception ex)
            {
                o.DebuggingInfos.Add(new Order.DebuggingInfo(ex.ToString()));
                o.SaveDebuggingInfos();
            }
        }

        private bool IsGetDiscount(Order o)
        {
            if (!string.IsNullOrWhiteSpace(o.VoucherCode))
            {
                Voucher OrderVoucher = Voucher.GetVoucherByCode(o.VoucherCode);
                VoucherList OrderVoucherList = VoucherList.GetListByID(OrderVoucher.ListID);

                if (OrderVoucher.ListID == _voucherListID && OrderVoucher.DateUsed == null && o.TotalPrice >= _minOrderValue && OrderVoucher.Status != "Used" && OrderVoucherList.ListActive)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            else {
                return false;
            }
        }

        private void AddDiscount(Order o, double discountPrice)
        {
            OrderLine line = new OrderLine();
            line.Order = o;
            line.Quantity = 1;
            line.Reference = "#";
            line.ProductName = this.DiscountName + " (" + o.VoucherCode +")";
            line.SetUnitPrice(GetCalculatedDiscountPrice(discountPrice));
            line.Type = Base.ChkString(Base.ChkNumber(OrderLine.OrderLineType.Discount));

            o.OrderLines.Add(line, false);
        }

        private double GetCalculatedDiscountPrice(double discountPrice)
        {
            PriceRaw rawprice = new PriceRaw(discountPrice, Application.DefaultCurrency);
            PriceCalculated calcPrice = new PriceCalculated(rawprice);
            calcPrice.PriceWithoutVAT = calcPrice.PriceWithVAT;
            calcPrice.VATPercent = 0;
            calcPrice.VAT = 0;

            return -1 * calcPrice.Price;
        }

        #endregion
    }

    [Dynamicweb.Extensibility.Subscribe(Dynamicweb.Notifications.eCommerce.Cart.CheckoutDoneOrderIsComplete)]
    public class OrderCompleteVoucherUpdate : Dynamicweb.Extensibility.NotificationSubscriber
    {
        public override void OnNotify(string notification, Dynamicweb.Extensibility.NotificationArgs args)
        {
            var myArgs = (Dynamicweb.Notifications.eCommerce.Cart.CheckoutDoneOrderIsCompleteArgs)args;
            Order order = myArgs.Order;

            if(!string.IsNullOrWhiteSpace(order.VoucherCode)) 
            {
                Voucher orderVoucher = Voucher.GetVoucherByCode(order.VoucherCode);

                Voucher.isValid(order.VoucherCode, orderVoucher.ListID);
                Voucher.MarkAsUsed(order.VoucherCode, order.ID);

                orderVoucher.UsedOrderID = order.ID;
                orderVoucher.DateUsed = order.Date;
                orderVoucher.Status = "Used";
                orderVoucher.Save();
            }
        }
    }
}