新增混合支付+完善新会员充值

business/jxstore/cms/order.go

@@ -118,6 +118,67 @@ func Pay(ctx *jxcontext.Context, orderID string, payType int, vendorPayType, app
 	return payHandler.WxPayParam, err
 }
 
+var (
+	NotPay     = 2 //订单待支付
+	AlreadyPay = 1 //订单已支付
+)
+
+//余额支付 微信补差值
+func PayByBalance(ctx *jxcontext.Context, orderID string, payType, restPrice int, appID, vendorPayType string) (errMsg string, err error) {
+	var (
+		db = dao.GetDB()
+	)
+	//获取订单信息
+	orderInfo, err := dao.GetOrderByID(db, orderID)
+	if err != nil {
+		return "获取订单信息失败", err
+	}
+	//获取用户 会员账户信息
+	userBill, err := dao.GetUserBill(db, orderInfo.UserID, "")
+	if err != nil {
+		return "获取用户会员账户余额失败", err
+	}
+	txDB, _ := dao.Begin(db)
+	defer func() {
+		if r := recover(); r != nil {
+			dao.Rollback(db, txDB)
+			panic(r)
+		}
+	}()
+	if orderInfo.Status == NotPay {
+		if userBill.AccountBalance > 0 {
+			//余额 全款支付
+			if userBill.AccountBalance > orderInfo.PayPrice && userBill.AccountBalance-orderInfo.PayPrice > 0 {
+				if err = financial.AddExpendUpdateAccount(txDB, userBill, model.BillTypePayByAccountBalance, orderInfo.PayPrice, 0); err != nil {
+					dao.Rollback(db, txDB)
+					return "使用余额支付失败：", err
+				}
+				orderInfo.Status = AlreadyPay
+			} else {
+				//需支付部分
+				//restPrice := orderInfo.PayPrice - userBill.AccountBalance
+				orderInfo.PayPrice = restPrice
+				if _, err := Pay(ctx, orderInfo.OrderID, payType, vendorPayType, appID); err != nil {
+					return "微信支付失败：", err
+				}
+				//支付成功后修改余额为0
+				if err := dao.UpdateUserBill(orderInfo.UserID, 0); err != nil {
+					dao.Rollback(db, txDB)
+					return "余额修改失败：", err
+				}
+				//增加一条用户账单
+				if err = financial.AddBillExpend(txDB, userBill.BillID, model.BillTypePayByAccountBalance, orderInfo.PayPrice, 0); err != nil {
+					dao.Rollback(db, txDB)
+					return "使用余额支付失败：", err
+				}
+
+			}
+		}
+		dao.Commit(db, txDB)
+	}
+	return "", err
+}
+
 func Cash(ctx *jxcontext.Context, orderID string, payType int, vendorPayType string) (errCode string, err error) {
 	var (
 		db    = dao.GetDB()
@@ -146,6 +207,15 @@ func GetOrders(ctx *jxcontext.Context, orderID, userID string, orderType int, ci
 	return dao.GetOrders(dao.GetDB(), orderID, userID, orderType, cityCodes, utils.Str2Time(fromTime), utils.Str2Time(toTime), keyword, offset, pageSize)
 }
 
+//id获取订单详情(单条查询)
+//func GetOrderByID(ctx *jxcontext.Context, orderID int) (errMsg string, err error) {
+//	//var db = dao.GetDB()
+//	if _, err := dao.GetOrderByID(dao.GetDB(), orderID); err != nil {
+//		return "id获取订单详情失败", err
+//	}
+//	return "", err
+//}
+
 func FinishedCashOrders(ctx *jxcontext.Context, orderIDs []string) (err error) {
 	var (
 		db = dao.GetDB()