public void Dispose()
{
if (_db != null)
{
_db.Dispose();
_db = null;
}
}
public IQueryable<Gadget> GetGadget([QueryString("gadgetID")] int? gadgetId)
{
var _db = new UsedGadgetsSale.Models.GadgetContext();
IQueryable<Gadget> query = _db.Gadgets;
if (gadgetId.HasValue && gadgetId > 0)
{
query = query.Where(p => p.GadgetID == gadgetId);
}
else
{
query = null;
}
return query;
}
public IQueryable<Category> GetCategories()
{
var _db = new UsedGadgetsSale.Models.GadgetContext();
IQueryable<Category> query = _db.Categories;
return query;
}
public void UpdateShoppingCartDatabase(String cartId, ShoppingCartUpdates[] CartItemUpdates)
{
using (var db = new UsedGadgetsSale.Models.GadgetContext())
{
try
{
int CartItemCount = CartItemUpdates.Count();
List<CartItem> myCart = GetCartItems();
foreach (var cartItem in myCart)
{
// Iterate through all rows within shopping cart list
for (int i = 0; i < CartItemCount; i++)
{
if (cartItem.Gadget.GadgetID == CartItemUpdates[i].GadgetId)
{
if (CartItemUpdates[i].PurchaseQuantity < 1 || CartItemUpdates[i].RemoveItem == true)
{
RemoveItem(cartId, cartItem.GadgetId);
}
else
{
UpdateItem(cartId, cartItem.GadgetId, CartItemUpdates[i].PurchaseQuantity);
}
}
}
}
}
catch (Exception exp)
{
throw new Exception("ERROR: Unable to Update Cart Database - " + exp.Message.ToString(), exp);
}
}
}
public void UpdateItem(string updateCartID, int updateProductID, int quantity)
{
using (var _db = new UsedGadgetsSale.Models.GadgetContext())
{
try
{
var myItem = (from c in _db.ShoppingCartItems where c.CartId == updateCartID && c.Gadget.GadgetID == updateProductID select c).FirstOrDefault();
if (myItem != null)
{
myItem.Quantity = quantity;
_db.SaveChanges();
}
}
catch (Exception exp)
{
throw new Exception("ERROR: Unable to Update Cart Item - " + exp.Message.ToString(), exp);
}
}
}
public void RemoveItem(string removeCartID, int removeProductID)
{
using (var _db = new UsedGadgetsSale.Models.GadgetContext())
{
try
{
var myItem = (from c in _db.ShoppingCartItems where c.CartId == removeCartID && c.Gadget.GadgetID == removeProductID select c).FirstOrDefault();
if (myItem != null)
{
// Remove Item.
_db.ShoppingCartItems.Remove(myItem);
_db.SaveChanges();
}
}
catch (Exception exp)
{
throw new Exception("ERROR: Unable to Remove Cart Item - " + exp.Message.ToString(), exp);
}
}
}
