protected void addToCart_Click(object sender, EventArgs e)
{
//check if user is logged in
if (Session["Username"] == null)
{
Response.Redirect("login.aspx");
}
//check if user is customer
if (Session["Role"].ToString() != "Customer")
{
lblInvalid.Text = "You are not allowed to order!";
return;
}
//check stock
if (b.Stock < 1)
{
lblInvalid.Text = "Insufficient stock!";
return;
}
//check if user has pending order
Order pendingOrder = bm.getPendingOrder(Session["Username"].ToString());
if (pendingOrder == null)
{
pendingOrder = new Order();
pendingOrder.UserName = Session["Username"].ToString();
pendingOrder.OrderDate = DateTime.Now;
pendingOrder.Status = "PENDING";
bm.addOrder(pendingOrder);
}
//check if item already in orderdetails under same orderid
OrderDetail orderDetail = bm.getOrderDetail(pendingOrder.OrderID, b.BookID);
int quantity = Convert.ToInt32(ddlQuantity.SelectedValue);
if (orderDetail == null)
{
orderDetail = new OrderDetail();
orderDetail.OrderID = pendingOrder.OrderID;
orderDetail.BookID = b.BookID;
orderDetail.Quantity = quantity;
bm.addOrderDetail(orderDetail);
}
else
{
orderDetail.Quantity += quantity;
bm.updateOrderDetail(orderDetail);
}
b.Stock -= quantity;
bm.updateBook(b);
lblSuccessful.Text = "Added " + quantity + " books to cart!";
refreshStock();
}
