/// <summary>
/// Load a DataTable object with a row from the tDiscountType table
/// </summary>
/// <param name="discountTypeID"></param>
/// <returns></returns>
private tDiscountType.fGetDiscountTypeDataTable LoadDiscountType(int discountTypeID)
{
tDiscountType.fGetDiscountTypeDataTable discountTypeDataTable = new tDiscountType.fGetDiscountTypeDataTable();
tDiscountTypeTableAdapters.fGetDiscountTypeTableAdapter fGetDiscountTypeTableAdapter = new tDiscountTypeTableAdapters.fGetDiscountTypeTableAdapter();
// Don't use the connection configured in the DataSet designer. Use the one we like.
fGetDiscountTypeTableAdapter.Connection = Config.myConnection;
fGetDiscountTypeTableAdapter.Fill(discountTypeDataTable, discountTypeID);
return(discountTypeDataTable);
}
/// <summary>
/// Process the coupon, if any, relative to the transaction taking place
/// </summary>
/// <param name="tp">Transaction Paramaters for the current transaction</param>
private void ProcessTransactionDetailAndCoupon(TransactionParameters tp)
{
try {
if (tp.couponDetailID > 0)
{
tDiscountType discountType = new tDiscountType();
tCouponDetail.fGetCouponDetailDataTable couponDetailDataTable = LoadCouponDetail(tp.couponDetailID);
int discountTypeID = couponDetailDataTable.Rows[0].Field <int>("DiscountTypeID");
tDiscountType.fGetDiscountTypeDataTable discountTypeDataTable = LoadDiscountType(discountTypeID);
// Check the quantity being purhased in the transaction to make sure it's not too many or too few to use the coupon.
if (tp.qty < couponDetailDataTable.Rows[0].Field <int>("MinQtyToPurchase"))
{
tp.qty = couponDetailDataTable.Rows[0].Field <int>("MinQtyToPurchase");
}
if (tp.qty > couponDetailDataTable.Rows[0].Field <int>("MaxQtyToPurchase"))
{
tp.qty = couponDetailDataTable.Rows[0].Field <int>("MaxQtyToPurchase");
}
if (discountTypeDataTable.Rows[0].Field <bool>("isFree") == true)
{
// It's a free coupon! Make the cost in the transaction detail zero
tp.pricePerSellableUnitToTheCustomer = 0;
}
else
{
if (discountTypeDataTable.Rows[0].Field <bool>("isPercentageDiscount") == true)
{
// It's a percentage off coupon! Reduce the cost in the transaction detail
double percentageDiscount = ((double)(100 - couponDetailDataTable.Rows[0].Field <int>("PercentageDiscount"))) / 100;
tp.pricePerSellableUnitToTheCustomer *= percentageDiscount;
}
else
{
if (discountTypeDataTable.Rows[0].Field <bool>("isBOGO") == true)
{
// It's buy one / get one free.
tp.pricePerSellableUnitToTheCustomer /= 2; // Reduce the purchase price of each unit by 1/2 to acheive BOGO
// round it up because we don't sell fractions of a cent
tp.pricePerSellableUnitToTheCustomer = Math.Round(tp.pricePerSellableUnitToTheCustomer, 2);
tp.qty *= 2; // They will get twice as many as they purchased. Woo Hoo.
}
else
{
if (discountTypeDataTable.Rows[0].Field <bool>("isAmountOff") == true)
{
// It's a specific amount off the purchase price.
double amountOff = Double.Parse(couponDetailDataTable.Rows[0].Field <decimal>("AmountOff").ToString());
tp.pricePerSellableUnitToTheCustomer -= amountOff; // Reduce the purchase price of each unit by the amount on the coupon
}
else
{
if (discountTypeDataTable.Rows[0].Field <bool>("isGiftCard") == true)
{
// It's a gift card.
double amountOff = Double.Parse(couponDetailDataTable.Rows[0].Field <decimal>("AmountOff").ToString());
tp.pricePerSellableUnitToTheCustomer -= amountOff / tp.qty; // Reduce the purchase price of each unit
// round it up because we don't sell fractions of a cent
tp.pricePerSellableUnitToTheCustomer = Math.Round(tp.pricePerSellableUnitToTheCustomer, 2);
}
}
}
}
}
}
} catch (Exception ex) {
// Something went wrong.
Write(Environment.NewLine + "AddTransactions.ProcessTransactionDetailAndCoupon: " + ex.Message);
}
}