public bool Save訂購交易(ShoppingCart cart)
{
// Todo:
// 交由 DAO (Data Access Object) 物件，並透 EF (Entity Framework)將本次訂購商品交易儲存至資料庫
return true;
}
public ShoppingCart 確認訂購資訊(ShoppingCart cart)
{
烏龜BMO bmo = new 烏龜BMO();
cart = bmo.proc訂購資訊(cart);
return cart;
}
// 結帳
public ActionResult Checkout(string btnCheckout)
{
switch (btnCheckout)
{
case "結帳" :
{
cart = (ShoppingCart)Session["ShoppingCart"];
ViewData["result"] = this.SaveOrder(cart); // 將處理儲存訂購結果回傳給 View
return View();
}
case "取消" :
return RedirectToAction("Index", "Facade");
default: return View();
}
}
public ShoppingCart proc訂購資訊(ShoppingCart cart)
{
int total = 0;
foreach (烏龜商品 item in cart.CartList)
{
total = total + (item.price * item.quantity);
}
// Todo:
// 實作應有相關於 eCoupon 的處理邏輯︰這裡僅示範簡單的商業邏輯處理
if (cart.eCoupon.Equals("1688"))
cart.TotalPrice = Convert.ToInt32(total * 0.9); //九折優惠
else
cart.TotalPrice = total;
return cart;
}
public ActionResult AddToCart()
{
cart.CartList = new List<烏龜商品>();
烏龜商品 m_item;
string m_id, m_qty;
// Get the itemList from Session Object.
itemList = (List<烏龜商品>)Session["ItemList"];
// Get the Form's ID
string[] keys = Request.Form.AllKeys;
foreach (var key in keys)
{
if (key.Contains("id"))
{
m_id = Request.Params[key];
m_item = itemList.Where(t => t.id == m_id).SingleOrDefault(); // 取得所相對應烏龜清單內的商品
if (m_item != null)
{
m_qty = Request.Params["qty_" + m_id];
if (string.IsNullOrEmpty(m_qty))
continue;
m_item.quantity = Int32.Parse(m_qty);
cart.CartList.Add(m_item); // 將所購買的商品放入 ShoppingCart 物件內
}
}
}
cart.eCoupon = Request["txtCoupon"]; // 取得 Coupon 欄位值
cart = control.確認訂購資訊(cart); // 交由 Facade 物件計算訂購總額，並再將結果傳回
Session["ShoppingCart"] = cart; // Hold the ShoppingCart object to Session
return View(cart);
}
// 委由 Facade 物件儲存本次的訂購交易
private string SaveOrder(ShoppingCart cart)
{
if (control.Save訂購交易(cart))
return "訂購完成";
else
return "交易失敗";
}