public string RemoveOrder(int orderId)
{
try
{
if (orderId <= 0)
{
return(null);
}
string message = string.Empty;
using (var context = new TakeThaiContext())
{
var order = context.OrderModels
.Include(o => o.CustomerDeliveryAddressModel)
.Include(o => o.SubOrderModelsList)
.FirstOrDefault(o => o.Id == orderId);
if (order != null)
{
context.Remove(order);
context.SaveChanges();
message = "Order has been successfully removed.";
}
else
{
message = "Cannot find Order.";
}
}
return(message);
}
catch (Exception exception)
{
return($"An unexpected error occurred. {exception.Message}");
}
}
public string RemoveSubOrder(int orderId, int subOrderId)
{
try
{
if (orderId <= 0 || subOrderId <= 0)
{
return(null);
}
string message = string.Empty;
using (var context = new TakeThaiContext())
{
var subOrder = context.SubOrderModels.FirstOrDefault(s => s.Id == subOrderId);
var order = context.OrderModels.FirstOrDefault(o => o.Id == orderId);
if (order != null && subOrder != null)
{
order.SubOrderModelsList = context.SubOrderModels.Where(s => s.OrderModel == order).ToList();
if (order.SubOrderModelsList.Contains(subOrder))
{
context.Remove(subOrder);
context.SaveChanges();
var subOrders = context.SubOrderModels
.Where(s => s.OrderModel == order)
.Include(s => s.ProductSubModels)
.ToList();
var subOrderModels = subOrders.ToList();
double totalPrice = 0;
foreach (var getSubOrder in subOrderModels)
{
if (getSubOrder.Quantity == 0)
{
getSubOrder.Quantity = 1;
}
totalPrice += getSubOrder.Quantity * getSubOrder.ProductSubModels.Price;
}
totalPrice = Math.Round(totalPrice, 2, MidpointRounding.ToEven);
if (order != null)
{
order.SubTotal = totalPrice;
order.TotalCost = order.SubTotal + order.DeliveryCost - order.CustomerDiscount;
context.Update(order);
context.SaveChanges();
}
message = "Sub Order has been successfully removed.";
}
else
{
message = "Cannot find Sub Order within the specified order.";
}
}
else
{
message = "Cannot find Order or Sub Order.";
}
}
return(message);
}
catch (Exception exception)
{
return($"An unexpected error occurred. {exception.Message}");
}
}
