public KeyValuePair <int, bool> AddOrder(Dictionary <string, object> items, ApplicationUser user)
{
int orderId = -1;
bool goodsBackordered = false;
using (_db)
{
// we need a transaction as multiple entities involved
using (var _trans = _db.Database.BeginTransaction())
{
try
{
Order order = new Order();
order.UserId = user.Id;
order.OrderDate = System.DateTime.Now;
// calculate the totals and then add the order row to the table
foreach (var key in items.Keys)
{
ProductViewModel item =
JsonConvert.DeserializeObject <ProductViewModel>(Convert.ToString(items[key]));
if (item.Qty > 0)
{
order.OrderAmount += item.Qty * item.MSRP;
}
}
order.OrderAmount *= 1.13M;
_db.Orders.Add(order);
_db.SaveChanges();
//variable for keeping track of real order total - i.e. the goods sold.
decimal goodsSoldTotal = 0;
// add each product to the orderitems table
foreach (var key in items.Keys)
{
ProductViewModel item =
JsonConvert.DeserializeObject <ProductViewModel>(Convert.ToString(items[key]));
Product product = _db.Products.Find(item.Id);
if (item.Qty > 0)
{
//Get how many of the item is currently in the database
int currentQtyStock = item.QtyOnHand;
OrderLineItem oItem = new OrderLineItem();
oItem.ProductId = item.Id;
oItem.OrderId = order.Id;
oItem.SellingPrice = item.MSRP;
oItem.QtyOrdered = item.Qty;
//Check if the qty ordered of this product is bigger or smaller than the current qty on hand
if (item.Qty < currentQtyStock)
{
//Decrease the QtyOnHand in the products table by Qty
product.QtyOnHand = currentQtyStock - item.Qty;
//Order Item Quantity Sold is Qty
oItem.QtySold = item.Qty;
//Order Item Qty Back Ordered is 0
oItem.QtyBackOrdered = 0;
product.QtyOnBackOrder = item.QtyOnBackOrder;
}
else
{
goodsBackordered = true;
//QtyOnHand in the products table is 0
product.QtyOnHand = 0;
//QtyOnBackOrder for the Products table is QtyOnBackOrder +
// Qty - currentQtyStock
product.QtyOnBackOrder = item.QtyOnBackOrder + (item.Qty - currentQtyStock);
//Order item Quantity Sold is currentQtyStock
oItem.QtySold = currentQtyStock;
//Order item QtyBackOrdered is Qty - currentQtyStock
oItem.QtyBackOrdered = item.Qty - currentQtyStock;
}
_db.OrderLineItems.Add(oItem);
//update products table
_db.Products.Update(product);
_db.SaveChanges();
//increase goods sold amount
goodsSoldTotal += oItem.QtySold * oItem.SellingPrice;
}
}
//if the goodsSoldTotal is different than the original order total, update this
if (goodsSoldTotal != order.OrderAmount)
{
order.OrderAmount = goodsSoldTotal * 1.13M;
_db.Orders.Update(order);
_db.SaveChanges();
}
_trans.Commit();
orderId = order.Id;
}
catch (Exception ex)
{
orderId = -1;
Console.WriteLine(ex.Message);
_trans.Rollback();
}
}
}
return(new KeyValuePair <int, bool>(orderId, goodsBackordered));
}
public int AddTray(Dictionary <string, object> items, ApplicationUser user)
{
int trayId = -1;
using (_db)
{
// we need a transaction as multiple entities involved
using (var _trans = _db.Database.BeginTransaction())
{
try
{
Order tray = new Order();
tray.UserId = user.Id;
tray.OrderDate = System.DateTime.Now;
tray.OrderAmount = 0;
// calculate the totals and then add the tray row to the table
foreach (var key in items.Keys)
{
ProductViewModel item =
JsonConvert.DeserializeObject <ProductViewModel>(Convert.ToString(items[key]));
if (item.Qty > 0)
{
tray.OrderAmount += item.Qty;
tray.OrderTotal += item.Qty * item.CostPrice;
}
}
_db.Orders.Add(tray);
_db.SaveChanges();
// then add each item to the trayitems table
foreach (var key in items.Keys)
{
ProductViewModel item =
JsonConvert.DeserializeObject <ProductViewModel>(Convert.ToString(items[key]));
if (item.Qty > 0)
{
OrderLineItem order = new OrderLineItem();
order.ProductId = item.Id;
order.OrderId = tray.Id;
Product product = _db.Products.First(p => p.Id == item.Id);
if (product.QtyOnHand >= item.Qty)
{
order.QtySold = item.Qty;
order.QtyOrdered = item.Qty;
order.QtyBackOrdered = 0;
product.QtyOnHand -= item.Qty;
order.SellingPrice += item.CostPrice * order.QtySold;
}
else
{
order.QtySold = product.QtyOnHand;
order.QtyOrdered = item.Qty;
order.QtyBackOrdered = item.Qty - product.QtyOnHand;;
product.QtyOnBackOreder += item.Qty - product.QtyOnHand;
product.QtyOnHand = 0;
order.SellingPrice += item.CostPrice * order.QtySold;
}
//if (item.Qty > 0)
//{
// OrderLineItem tItem = new OrderLineItem();
// tItem.QtyOrdered = item.Qty;
// tItem.OrderId = tray.Id;
// tItem.ProductId = item.Id;
// tItem.QtySold = item.Qty;
// tItem.SellingPrice = item.CostPrice;
_db.OrderLineItems.Add(order);
_db.SaveChanges();
}
}
// test trans by uncommenting out these 3 lines
//int x = 1;
//int y = 0;
//x = x / y;
_trans.Commit();
trayId = tray.Id;
}
catch (Exception ex)
{
trayId = -1;
Console.WriteLine(ex.Message);
_trans.Rollback();
}
}
}
return(trayId);
}