public JsonResult AddToCart(string id)
{
string username = Session.GetCurrentUserInfo("Username");
bool result = false;
if (username == null) //not login => save in session
{
result = shoppingService.AddToCartSession(id);
}
else //login => save in DB
{
result = shoppingService.AddToCartDB(id, username);
}
if (result) //success
{
return(Json(new { success = true, responseText = "Add successfuly", quantity = -1 }, JsonRequestBehavior.AllowGet));
}
else //fail
{
if (shoppingService.FailByQuantity)
{ //fail because quantity not enough => send available quantity in DB back to View to inform
int quantityHave = shoppingService.GetItemQuantityInDB(id);
return(Json(new { success = false, responseText = "Add fail because quantity", quantity = quantityHave }, JsonRequestBehavior.AllowGet));
}
//fail
return(Json(new { success = false, responseText = "Add fail", quantity = -1 }, JsonRequestBehavior.AllowGet));
}
}