/// <summary>
/// 查看購物車內是否有重複方案:若有，則方案數量+1;若無，購物車新增一筆方案
/// </summary>
/// <param name="cartItems"></param>
/// <param name="carcarPlanVM"></param>
/// <returns></returns>
public CartItemListViewModel CheckId(CartItemListViewModel cartItems, CarCarPlanViewModel carcarPlanVM)
{
var result = cartItems.CartItems.Where(x => x.PlanId == carcarPlanVM.PlanId).Select(x => x).FirstOrDefault();
///若沒有找到相同項目，則新增一個項目
if (result == default(CarCarPlanViewModel))
{
var cart = new CarCarPlanViewModel
{
CartId = cartItems.CartItems.Count() + 1,
PlanId = carcarPlanVM.PlanId,
PlanTitle = carcarPlanVM.PlanTitle,
PlanImgUrl = carcarPlanVM.PlanImgUrl,
PlanPrice = carcarPlanVM.PlanPrice,
Quantity = carcarPlanVM.Quantity,
QuantityLimit = carcarPlanVM.QuantityLimit,
ProjectId = carcarPlanVM.ProjectId
};
cartItems.CartItems.Add(cart);
return(cartItems);
}
//若有找到相同項目，則該項目數量+1
else
{
result.Quantity += 1;
return(cartItems);
}
}
public int AddtoCart(CarCarPlanViewModel carcarPlanVM)
{
var cartList = new CartItemListViewModel
{
CartItems = new List <CarCarPlanViewModel>()
};
///若購物車為空，則初始化購物車，並放入Session["Cart"]
if (Session["Cart"] == null)
{
var cart = _CartService.CreateANewCart(carcarPlanVM);
cartList.CartItems.Add(cart);
Session["Cart"] = cartList;
}
///若購物車不為空，則購物車新增CarCarPlanViewModel
else
{
cartList = (CartItemListViewModel)Session["Cart"];
var cartFiilter = _CartService.CheckId(cartList, carcarPlanVM);
Session["Cart"] = cartFiilter;
}
///前端畫面顯示購物車內購物項目的數量。若有重複，則不重複計算
return(cartList.CartItems.Count);
}
public PayViewModel QueryByPlanId(CartItemListViewModel cart) //撈資料庫資料 用購物車的planId找到資料庫的planId
{
var session = HttpContext.Current.Session;
var memberSession = ((MemberViewModel)session["Member"]);
var member = _repository.GetAll <Member>().FirstOrDefault(x => x.MemberId == memberSession.MemberId);
var viewmodel = new PayViewModel
{
MemberName = member.MemberName,
MemberAddress = member.MemberAddress,
MemberPhone = member.MemberPhone,
MemberConEmail = member.MemberRegEmail,
MemberId = member.MemberId,
CartItems = new List <CarCarPlanViewModel>() //先給他一個空的集合 讓viewmodel知道我需要這筆資料
};
foreach (var item in cart.CartItems) //先撈session
{
var plan = _repository.GetAll <Plan>().FirstOrDefault(X => X.PlanId == item.PlanId); //資料庫id==sessionId 之後要移出foreach
var CartItem = new CarCarPlanViewModel
{
PlanId = plan.PlanId,
Quantity = item.Quantity,
PlanPrice = plan.PlanPrice,
PlanImgUrl = plan.PlanImgUrl,
PlanTitle = plan.PlanTitle,
ProjectId = plan.ProjectId,
};
viewmodel.CartItems.Add(CartItem);
}
return(viewmodel);
}
/// <summary>
/// 此方法為刪除購物車內某一商品:cartItems為目前購物車內容，carcarPlanVM則為欲刪除項目
/// </summary>
/// <param name="cartItems"></param>
/// <param name="carcarPlanVM"></param>
/// <returns></returns>
public CartItemListViewModel DeleteId(CartItemListViewModel cartItems, CarCarPlanViewModel carcarPlanVM)
{
var result = cartItems.CartItems.Where(x => x.PlanId == carcarPlanVM.PlanId).Select(x => x).FirstOrDefault();
if (result == default(CarCarPlanViewModel))
{
}
else
{
cartItems.CartItems.Remove(result);
}
return(cartItems);
}
/// <summary>
/// cartItems為購物車內容，QuantityArray則為前端傳入的數量陣列及留言內容
/// </summary>
/// <param name="cartItems"></param>
/// <param name="QuantityArray"></param>
/// <returns></returns>
public CartItemListViewModel ChangeCartQuantity(CartItemListViewModel cartItems, CheckoutQuantityViewModel QuantityArray)
{
if (QuantityArray == null)
{
return(cartItems);
}
else
{
for (int i = 0; i < QuantityArray.Quantity.Count; i++)
{
///第一項商品的購買數量等於數量陣列的第一項
cartItems.CartItems[i].Quantity = QuantityArray.Quantity[i];
///如果商品購買數量大於庫存，則購買數量等於庫存
if (cartItems.CartItems[i].Quantity > cartItems.CartItems[i].QuantityLimit)
{
cartItems.CartItems[i].Quantity = cartItems.CartItems[i].QuantityLimit;
}
}
cartItems.Comment = QuantityArray.Comment;
///初始化記錄數量的陣列
QuantityArray.Quantity.Clear();
return(cartItems);
}
}
/// <summary>
/// 清空購物車功能
/// </summary>
/// <param name="cartItems"></param>
/// <returns></returns>
public CartItemListViewModel ClearCart(CartItemListViewModel cartItems)
{
cartItems.CartItems.Clear();
return(cartItems);
}
