public IResult CheckOut(List <int> Id, string c_id)
{
IResult result = new Result();
try
{
LocalDateTimeService timeService = new LocalDateTimeService();
Random r = new Random();
var today = timeService.GetLocalDateTime(LocalDateTimeService.CHINA_STANDARD_TIME);
string datetimeStr = today.ToString("yyyyMMddHHmmss");
var orderId = string.Format("{0}{1}", datetimeStr, r.Next(1000, 10000));
var items = db.Carts.Where(x => Id.Contains(x.Id)).ToList();
if (!CheckItemStock(items))
{
result.Message = "有商品庫存不足，請下單前確認庫存量是否足夠";
return(result);
}
var cartsWithSoapList = items.Join(db.Soaps, c => c.SoapId,
s => s.Id, (c, s) => new { c, s }).ToList();
var sumPrice = cartsWithSoapList.Sum(x => x.c.AddCount * x.s.Price);
var instance = new Orders
{
AddTime = today,
UpdateTime = today,
Id = orderId,
TotalPrice = sumPrice,
StatusId = 1,
C_Id = c_id
};
db.Orders.Add(instance);
bool stockNotEnough = cartsWithSoapList.Where(x => x.s.StockCount - x.c.AddCount < 0).SingleOrDefault() != null;
if (stockNotEnough)
{
result.Message = "有商品庫存不足，請下單前確認庫存量是否足夠";
return(result);
}
cartsWithSoapList.ForEach(x => x.s.StockCount = x.s.StockCount - x.c.AddCount);
items.ForEach(x => x.OrderId = orderId);
db.SaveChanges();
result.Success = true;
}
catch (Exception e)
{
result.Message = "系統錯誤，請稍後再試";
throw;
}
return(result);
}
public IResult CreateNews(News news)
{
IResult result = new Result();
try
{
LocalDateTimeService timeService = new LocalDateTimeService();
var now = timeService.GetLocalDateTime(LocalDateTimeService.CHINA_STANDARD_TIME);
news.AddTime = now;
news.Id = now.ToString("yyyyMMddHHmmss");
repository.Create(news);
result.Success = true;
return(result);
}
catch (Exception e)
{
result.Message = e.ToString();
return(result);
}
}