Order group calculator
total
Calculates the total for an order.
public void GetTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var total = orderGroupCalculator.GetTotal(orderGroup);
Debug.WriteLine("Total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, total);
}subTotal
Calculates the subtotal of all order forms for an order.
public void GetSubTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var subTotal = orderGroupCalculator.GetSubTotal(orderGroup);
Debug.WriteLine("Subtotal for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, subTotal);
}handlingTotal
Calculates an order's handling total.
public void GetHandlingTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var handlingTotal = orderGroupCalculator.GetHandlingTotal(orderGroup);
Debug.WriteLine("Handling total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, handlingTotal);
}shippingSubTotal
Calculates an order's shipping subtotal.
public void GetShippingSubTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var shippingSubTotal = orderGroupCalculator.GetShippingSubTotal(orderGroup);
Debug.WriteLine("Shipping subtotal for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, shippingSubTotal);
}orderDiscountTotal
Calculates the order group discount amount, which is the sum of all order-level discounts applied to line items across every shipment and order form in the order group.
public void GetOrderDiscountTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var orderDiscountTotal = orderGroupCalculator.GetOrderDiscountTotal(orderGroup);
Debug.WriteLine("Order discount total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderDiscountTotal);
}orderGroupTotals
Calculates all totals for the order group (handling total, shipping subtotal, tax total, subtotal, and total).
public void GetOrderGroupTotals(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var orderGroupTotals = orderGroupCalculator.GetOrderGroupTotals(orderGroup);
Debug.WriteLine("Handling total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderGroupTotals.HandlingTotal);
Debug.WriteLine("Shipping subtotal for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderGroupTotals.ShippingTotal);
Debug.WriteLine("Tax total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderGroupTotals.TaxTotal);
Debug.WriteLine("Subtotal for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderGroupTotals.SubTotal);
Debug.WriteLine("Total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, orderGroupTotals.Total);
}taxTotal
Calculates the tax total for the order.
public void GetTaxTotal(IOrderGroup orderGroup, IOrderGroupCalculator orderGroupCalculator) {
var taxTotal = orderGroupCalculator.GetTaxTotal(orderGroup);
Debug.WriteLine("Tax total for order group '{0}': {1}", orderGroup.OrderLink.OrderGroupId, taxTotal);
}Change the default calculation
Inherit from DefaultOrderGroupCalculator, the default implementation of IOrderGroupCalculator, and override one or more of its methods to change the calculation behavior.
public class OrderGroupCalculatorOverridingDefault: DefaultOrderGroupCalculator {
public OrderGroupCalculatorOverridingDefault(
IOrderFormCalculator orderFormCalculator,
IReturnOrderFormCalculator returnOrderFormCalculator,
IMarketService marketService): base(orderFormCalculator, returnOrderFormCalculator, marketService) {}
protected override Money CalculateTotal(IOrderGroup orderGroup) {
return new Money(0, orderGroup.Currency);
}
protected override Money CalculateSubTotal(IOrderGroup orderGroup) {
return new Money(0, orderGroup.Currency);
}
protected override Money CalculateHandlingTotal(IOrderGroup orderGroup) {
return new Money(0, orderGroup.Currency);
}
protected override Money CalculateShippingSubTotal(IOrderGroup orderGroup) {
return new Money(0, orderGroup.Currency);
}
protected override Money CalculateTaxTotal(IOrderGroup orderGroup) {
return new Money(0, orderGroup.Currency);
}
}Change the default validation
The default implementation validates that each total is non-negative after calculation. To change the behavior, override the validation method that corresponds to the total you want to validate differently: ValidateTotal, ValidateSubTotal, ValidateHandlingTotal, ValidateShippingSubTotal, or ValidateTaxTotal.
public class OrderGroupCalculatorOverridingDefault: DefaultOrderGroupCalculator {
public OrderGroupCalculatorOverridingDefault(
IOrderFormCalculator orderFormCalculator,
IReturnOrderFormCalculator returnOrderFormCalculator,
IMarketService marketService): base(orderFormCalculator, returnOrderFormCalculator, marketService) {}
protected override void ValidateTotal(Money money) {
if (money.Amount < 0) {
throw new ValidationException("Total must not be negative.");
}
}
protected override void ValidateSubTotal(Money money) {
if (money.Amount < 0) {
throw new ValidationException("Subtotal must not be negative.");
}
}
protected override void ValidateHandlingTotal(Money money) {
if (money.Amount < 0) {
throw new ValidationException("Handling total must not be negative.");
}
}
protected override void ValidateShippingSubTotal(Money money) {
if (money.Amount < 0) {
throw new ValidationException("Shipping subtotal must not be negative.");
}
}
protected override void ValidateTaxTotal(Money money) {
if (money.Amount < 0) {
throw new ValidationException("Tax total must not be negative.");
}
}
}