public void SaveSale(SaleModel saleInfo, string cashierId, List <SaleDetailDBModel> details)
{
//Start filling in the sale detail models we will save to the database
ProductData products = new ProductData();
var taxRate = ConfigHelper.GetTaxRate() / 100;
foreach (var item in saleInfo.SaleDetails)
{
var detail = new SaleDetailDBModel
{
ProductId = item.ProductId,
Quantity = item.Quantity
};
//Get the info about this product
var productInfo = products.GetProductById(detail.ProductId);
if (productInfo == null)
{
throw new Exception($"The product Id of {detail.ProductId} could not be found in the database");
}
detail.PurchasePrice = (productInfo.RetailPrice * detail.Quantity);
if (productInfo.IsTaxable)
{
detail.Tax = (detail.PurchasePrice * taxRate);
}
//update the products quantity in database
int refreshQuantity = productInfo.QuantityInStock - detail.Quantity;
products.UpdateProductQuantitity(detail.ProductId, refreshQuantity);
details.Add(detail);
}
//Create the Sale model
SaleDBModel sale = new SaleDBModel
{
SubTotal = details.Sum(x => x.PurchasePrice),
Tax = details.Sum(x => x.Tax),
CashierId = cashierId
};
sale.Total = sale.SubTotal + sale.Tax;
using (SqlDataAccess sql = new SqlDataAccess())
{
try
{
sql.StartTransaction("TRMData");
//Save the sale model
sql.SaveDataInTransaction("dbo.spSale_Insert", sale);
//Get the ID from the sale model
sale.Id = sql.LoadDataInTransaction <int, dynamic>("spSale_Lookup", new { sale.CashierId, sale.SaleDate }).FirstOrDefault();
//Finish filling in the sale detail models
foreach (var item in details)
{
item.SaleId = sale.Id;
//Save the sale detail models
sql.SaveDataInTransaction("dbo.spSaleDetail_Insert", item);
}
sql.CommitTransaction(); //using statement can also take care of doing it at the close of curly bracket
}
catch
{
sql.RollBackTransaction();
throw;
}
}
}