fix: persist guest/redemption activation context to DB to survive Redis TTL expiry (Bug 1 + Bug 10)

- Add `activation_context` TEXT column to `order` table (migration 02150) - purchaseLogic: write TemporaryOrderInfo JSON to order.ActivationContext in the same insert transaction; Redis write is now best-effort (non-fatal) - redeemCodeLogic: write redemption {type, redemption_code_id, unit_time, quantity} JSON to order.ActivationContext at order creation; Redis write is now best-effort (non-fatal) - getTempOrderInfo: on Redis miss, fall back to order.ActivationContext from DB; logs CRITICAL and returns error if both are missing (old orders with no DB record) - RedemptionActivate: on Redis miss, fall back to order.ActivationContext from DB; same CRITICAL log path for legacy orders Co-authored-by: multica-agent <github@multica.ai>
2026-05-25 00:13:59 -07:00
parent 30221232c9
commit a0f2d8a7b8
6 changed files with 130 additions and 61 deletions
@@ -863,26 +863,52 @@ func (l *ActivateOrderLogic) createGuestUser(ctx context.Context, orderInfo *ord
 	return userInfo, nil
 }

-// getTempOrderInfo retrieves temporary order information from Redis cache
+// getTempOrderInfo retrieves temporary order information from Redis cache with DB fallback.
 func (l *ActivateOrderLogic) getTempOrderInfo(ctx context.Context, orderNo string) (*constant.TemporaryOrderInfo, error) {
 	cacheKey := fmt.Sprintf(constant.TempOrderCacheKey, orderNo)
 	data, err := l.svc.Redis.Get(ctx, cacheKey).Result()
-	if err != nil {
-		logger.WithContext(ctx).Error("Get temp order cache failed",
-			logger.Field("error", err.Error()),
-			logger.Field("cache_key", cacheKey),
+	if err == nil {
+		var tempOrder constant.TemporaryOrderInfo
+		if unmarshalErr := tempOrder.Unmarshal([]byte(data)); unmarshalErr != nil {
+			logger.WithContext(ctx).Error("Unmarshal temp order cache failed",
+				logger.Field("error", unmarshalErr.Error()),
+				logger.Field("cache_key", cacheKey),
+				logger.Field("data", data),
+			)
+			return nil, unmarshalErr
+		}
+		return &tempOrder, nil
+	}
+
+	// Redis miss — fall back to DB activation_context field.
+	logger.WithContext(ctx).Infow("Redis cache miss for temp order, falling back to DB",
+		logger.Field("cache_key", cacheKey),
+		logger.Field("error", err.Error()),
+	)
+
+	orderInfo, dbErr := l.svc.OrderModel.FindOneByOrderNo(ctx, orderNo)
+	if dbErr != nil {
+		logger.WithContext(ctx).Error("DB fallback for temp order failed",
+			logger.Field("order_no", orderNo),
+			logger.Field("error", dbErr.Error()),
 		)
-		return nil, err
+		return nil, dbErr
+	}
+
+	if orderInfo.ActivationContext == "" {
+		logger.WithContext(ctx).Error("CRITICAL: activation_context missing in DB and Redis expired; cannot recover guest order",
+			logger.Field("order_no", orderNo),
+		)
+		return nil, errors.New("activation context not found: Redis expired and no DB fallback available")
 	}

 	var tempOrder constant.TemporaryOrderInfo
-	if err = tempOrder.Unmarshal([]byte(data)); err != nil {
-		logger.WithContext(ctx).Error("Unmarshal temp order cache failed",
-			logger.Field("error", err.Error()),
-			logger.Field("cache_key", cacheKey),
-			logger.Field("data", data),
+	if unmarshalErr := tempOrder.Unmarshal([]byte(orderInfo.ActivationContext)); unmarshalErr != nil {
+		logger.WithContext(ctx).Error("Unmarshal DB activation_context failed",
+			logger.Field("order_no", orderNo),
+			logger.Field("error", unmarshalErr.Error()),
 		)
-		return nil, err
+		return nil, unmarshalErr
 	}

 	return &tempOrder, nil
@@ -1782,25 +1808,50 @@ func (l *ActivateOrderLogic) RedemptionActivate(ctx context.Context, orderInfo *
 		return err
 	}

-	// 3. 从Redis获取兑换码信息
-	cacheKey := fmt.Sprintf("redemption_order:%s", orderInfo.OrderNo)
-	data, err := l.svc.Redis.Get(ctx, cacheKey).Result()
-	if err != nil {
-		logger.WithContext(ctx).Error("Get redemption cache failed",
-			logger.Field("error", err.Error()),
-			logger.Field("cache_key", cacheKey),
-		)
-		return err
-	}
-
+	// 3. 从Redis获取兑换码信息，Redis缺失时回查DB
 	var redemptionData struct {
 		RedemptionCodeId int64  `json:"redemption_code_id"`
 		UnitTime         string `json:"unit_time"`
 		Quantity         int64  `json:"quantity"`
 	}
-	if err = json.Unmarshal([]byte(data), &redemptionData); err != nil {
-		logger.WithContext(ctx).Error("Unmarshal redemption cache failed", logger.Field("error", err.Error()))
-		return err
+
+	cacheKey := fmt.Sprintf("redemption_order:%s", orderInfo.OrderNo)
+	data, redisErr := l.svc.Redis.Get(ctx, cacheKey).Result()
+	if redisErr == nil {
+		if err = json.Unmarshal([]byte(data), &redemptionData); err != nil {
+			logger.WithContext(ctx).Error("Unmarshal redemption cache failed", logger.Field("error", err.Error()))
+			return err
+		}
+	} else {
+		// Redis miss — fall back to DB activation_context field.
+		logger.WithContext(ctx).Infow("Redis cache miss for redemption order, falling back to DB",
+			logger.Field("cache_key", cacheKey),
+			logger.Field("error", redisErr.Error()),
+		)
+
+		if orderInfo.ActivationContext == "" {
+			logger.WithContext(ctx).Error("CRITICAL: activation_context missing in DB and Redis expired; cannot recover redemption order",
+				logger.Field("order_no", orderInfo.OrderNo),
+			)
+			return errors.New("activation context not found: Redis expired and no DB fallback available")
+		}
+
+		var fullContext struct {
+			Type             string `json:"type"`
+			RedemptionCodeId int64  `json:"redemption_code_id"`
+			UnitTime         string `json:"unit_time"`
+			Quantity         int64  `json:"quantity"`
+		}
+		if err = json.Unmarshal([]byte(orderInfo.ActivationContext), &fullContext); err != nil {
+			logger.WithContext(ctx).Error("Unmarshal DB activation_context failed",
+				logger.Field("order_no", orderInfo.OrderNo),
+				logger.Field("error", err.Error()),
+			)
+			return err
+		}
+		redemptionData.RedemptionCodeId = fullContext.RedemptionCodeId
+		redemptionData.UnitTime = fullContext.UnitTime
+		redemptionData.Quantity = fullContext.Quantity
 	}

 	// 4. 幂等性检查：查询是否已有兑换记录