/// <summary>
/// 获取印品价格
/// </summary>
/// <param name="bookid"></param>
/// <param name="couponid"></param>
/// <param name="num"></param>
/// <returns></returns>
public static decimal GetBookPrice(int bookid, int couponid, int num)
{
Inpinke_Book c = DBBookBLL.GetBookByID(bookid);
if (c == null)
{
throw new Exception();
}
int plusPages = c.PageCount - c.Inpinke_Product.BasePages;
plusPages = plusPages < 0 ? 0 : plusPages;
decimal price = (c.Inpinke_Product.Price + (plusPages) * (c.Inpinke_Product.PlusPrice / c.Inpinke_Product.PlusPages)) * num;
decimal couponPrices = 0;
if (couponid != 0)
{
Inpinke_Coupon coupon = DBCouponBLL.GetCouponByID(couponid);
if (coupon == null)
{
couponPrices = 0;
}
if (coupon.StartTime <= DateTime.Now && coupon.EndTime >= DateTime.Now)
{
couponPrices = coupon.DiscountPostage + coupon.DiscountPrice;
}
}
price -= couponPrices;
price = price < 0 ? 0 : price;
return(price);
}
/// <summary>
/// 获取购物车中商品总价
/// </summary>
/// <param name="userid"></param>
/// <returns></returns>
public static decimal GetCartTotalPrices(int userid)
{
IList <Inpinke_Cart> cartList = GetUserCart(userid);
decimal totalPrices = 0;
decimal plusPrices = 0;
decimal couponPrices = 0;
foreach (Inpinke_Cart c in cartList)
{
//书本算加页价格
if (c.Inpinke_Product.ProductType == (int)ProductType.PhotoBook)
{
plusPrices = c.Inpinke_Product.PlusPrice * ((c.Inpinke_Book.PageCount - c.Inpinke_Product.BasePages) / c.Inpinke_Product.PlusPages);
}
totalPrices += (c.Inpinke_Product.Price + plusPrices) * c.Num;
//优惠折扣
if (c.CouponID != 0)
{
Inpinke_Coupon coupon = DBCouponBLL.GetCouponByID(c.CouponID);
if (coupon.StartTime <= DateTime.Now && coupon.EndTime >= DateTime.Now)
{
couponPrices = coupon.DiscountPostage + coupon.DiscountPrice;
}
}
totalPrices -= couponPrices;
}
totalPrices = totalPrices < 0 ? 0 : totalPrices;
return(totalPrices);
}