Hi Luke,

We have no plans on integrating this into the starter kit. We have done it for one of our customers though. What we did was to add some shipping rules to the Umbraco content:

All product will of cause have a weight in kg property.
Then this “small” piece of code is used to update the shipping cost every time the order is changed. As you can see it’s a Tea Commerce .NET extension. It’s simpler than it looks.

 

  public class TeaCommerceExtension : ITeaCommerceExtension {

    #region ITeaCommerceExtension Members

 

    public void Initialize() {

      WebshopEvents.OrderLineChanged += WebshopEvents_OrderLineChanged;

      WebshopEvents.ShippingMethodChanged += WebshopEvents_ShippingMethodChanged;

      WebshopEvents.CurrencyChanged += WebshopEvents_CurrencyChanged;

      WebshopEvents.OrderLineRemoved += WebshopEvents_OrderLineRemoved;

    }

 

 

    void WebshopEvents_OrderLineRemoved( Order order, OrderLine orderLine ) {

      UpdateOrderShippingCost( order );

    }

 

    /// <summary>

    /// On currency change

    /// </summary>

    /// <param name="order"></param>

    /// <param name="currency"></param>

    void WebshopEvents_CurrencyChanged( Order order, Currency currency ) {

      UpdateOrderShippingCost( order );

    }

 

    /// <summary>

    /// On shipping method change

    /// </summary>

    /// <param name="order"></param>

    /// <param name="shippingMethod"></param>

    void WebshopEvents_ShippingMethodChanged( Order order, ShippingMethod shippingMethod ) {

      UpdateOrderShippingCost( order );

    }

 

    void WebshopEvents_OrderLineChanged( Order order, OrderLine orderLine ) {

      UpdateOrderShippingCost( order );

    }

 

    #endregion

 

    private void UpdateOrderShippingCost( Order order ) {

 

      XPathNodeIterator allXml = umbraco.library.GetXmlAll();

 

      XPathNavigator shippingRules = allXml.Current.SelectSingleNode( "//ShippingRules" );

      decimal defaultWeightInKg = PriceHelper.ParsePrice( shippingRules.SelectSingleNode( "defaultWeight" ).Value );

 

      decimal totalWeightInKg = 0;

      foreach ( OrderLine ol in order.OrderLines ) {

        OrderLineProperty weightProp = ol.Properties.FirstOrDefault( p => p.Alias == "productWeight" );

        if ( weightProp != null && !string.IsNullOrEmpty( weightProp.Value ) )

          totalWeightInKg += PriceHelper.ParsePrice( weightProp.Value.ToString() ) * ol.Quantity;

        else

          totalWeightInKg += defaultWeightInKg * ol.Quantity;

      }

 

      XPathExpression weightPathXPath = XPathExpression.Compile( "./WeightRange" );

      weightPathXPath.AddSort( "upToWeight", XmlSortOrder.Ascending, XmlCaseOrder.None, string.Empty, XmlDataType.Number );

 

      XPathNodeIterator weightRules = shippingRules.Select( weightPathXPath );

      decimal shippingPricePerKgWithoutVAT = 0;

      while ( weightRules.MoveNext() ) {

 

        if ( PriceHelper.ParsePrice( weightRules.Current.SelectSingleNode( "upToWeight" ).Value ) >= totalWeightInKg ) {

          shippingPricePerKgWithoutVAT = PriceHelper.ParsePrice( weightRules.Current.SelectSingleNode( "shippingPrice" + order.Currency.ISOCode ).Value );

          break;

        }

      };

 

 

      decimal totalShippingPriceWithoutVAT = shippingPricePerKgWithoutVAT * totalWeightInKg;

 

      OrderProperty shippingPriceOP = order.Properties.FirstOrDefault( p => p.Alias == "shippingPriceWithoutVAT" + order.Currency.ISOCode );

      OrderProperty totalWeightInKgProp = order.Properties.FirstOrDefault( p => p.Alias == "totalWeightInKg" );

      if ( shippingPriceOP == null ) {

        shippingPriceOP = new OrderProperty( "shippingPriceWithoutVAT" + order.Currency.ISOCode, totalShippingPriceWithoutVAT.ToString() );

        order.AddProperty( shippingPriceOP );

        totalWeightInKgProp = new OrderProperty( "totalWeightInKg", totalWeightInKg.ToString() );

        order.AddProperty( totalWeightInKgProp );

      } else {

        if ( shippingPriceOP.Value.ParseToDecimal() != totalShippingPriceWithoutVAT )

          shippingPriceOP.Value = totalShippingPriceWithoutVAT.ToString();

 

        if ( totalWeightInKgProp.Value.ParseToDecimal() != totalWeightInKg )

          totalWeightInKgProp.Value = totalWeightInKg.ToString();

      }

      if ( order.ShippingMethod.Id == 2 && order.ShippingFeeWithoutVAT != totalShippingPriceWithoutVAT )

        order.ShippingFeeWithoutVAT = totalShippingPriceWithoutVAT;

 

      order.Save();

 

    }

  }

/Rune