Пример #1
0
        public void AddItem(BizofferInfo info)
        {
            if (info == null)
            {
                throw new Exception("发布单信息不能为空");
            }
            if (info.Price <= 0)
            {
                throw new Exception("发布单价格不能小于等于0");
            }

            //由于order和orderItem是个聚合关系,order是这个聚合的聚合根,它负责业务规则的不变性和数据的一致性
            //下面逻辑体现了以上原则

            this.TotalPrice = this.TotalPrice + info.Price;//数据的一致性


            var items = this.OrderItems.Where(m => m.BizofferInfo.BizofferId == info.BizofferId).ToList();   //业务的不变性,如果订单项列表中已有该商品,则订单项商品数加一即可

            if (items.Count > 0)
            {
                items[0].IncrementQuantity();
            }
            else
            {
                OrderItem item = new OrderItem(info);
                this.OrderItems.Add(item);
            }
        }
Пример #2
0
        /// <summary>
        /// 下单
        /// </summary>
        /// <param name="bizofferId"></param>
        /// <param name="buyerId"></param>
        /// <param name="buyerName"></param>
        /// <returns></returns>
        public Order Execute(string bizofferId, string buyerId, string buyerName)
        {
            //调用风控服务,是否是黑名单用户
            var IsExistsBlackList = this.securityService.IsExistsBlackList(buyerId);

            if (IsExistsBlackList)
            {
                throw new Exception("该用户是黑名单用户");                    //领域层里所有业务检查都抛出异常的方式处理,否则应用服务层要有if判断语句
            }
            //调用发布单上下文获取发布单信息
            BizofferInfo bizofferInfo = this.bizofferService.GetBizofferInfoById(bizofferId);

            //创建订单
            var order = new Order(buyerId, buyerName);

            order.AddItem(bizofferInfo);

            return(order);
        }
Пример #3
0
 public OrderItem(BizofferInfo bizofferInfo)
 {
     this.BizofferInfo = bizofferInfo;
     this.Id           = Guid.NewGuid().ToString();
 }