修改部分枚举字段的编号与注释确保 0 值的正确语义

web/services/transaction.go

@@ -134,12 +134,23 @@ func (s *transactionService) PrepareTransaction(ctx context.Context, q *q.Query,
 	}
 
 	// 保存交易订单
+	var tradeType int
+	var billType int
+	switch tType {
+	case TransactionTypeRecharge:
+		tradeType = 2
+		billType = 3
+	case TransactionTypePurchase:
+		tradeType = 1
+		billType = 1
+	}
+
 	var trade = m.Trade{
 		UserID:  uid,
 		InnerNo: tradeNo,
 		Subject: subject,
 		Method:  int32(method),
-		Type:    int32(tType),
+		Type:    int32(tradeType),
 		Amount:  amount,
 		Status:  0, // 0-待支付
 		PayURL:  payUrl,
@@ -155,7 +166,7 @@ func (s *transactionService) PrepareTransaction(ctx context.Context, q *q.Query,
 		UserID:  uid,
 		TradeID: trade.ID,
 		Info:    subject,
-		Type:    int32(tType),
+		Type:    int32(billType),
 		Amount:  amount,
 	}
 	err = q.Bill.
@@ -329,8 +340,8 @@ func (s *transactionService) FinishTransaction(ctx context.Context, q *q.Query,
 type TransactionType int32
 
 const (
-	TransactionTypeRecharge TransactionType = iota
-	TransactionTypePurchase
+	TransactionTypePurchase TransactionType = iota + 1
+	TransactionTypeRecharge
 )
 
 type TransactionMethod int32