当前卡的逻辑变更

internal/store/postgres/device_sim_binding_store.go

@@ -229,9 +229,9 @@ func (s *DeviceSimBindingStore) GetBoundICCIDs(ctx context.Context, iccids []str
 }
 
 // UpdateIsCurrentByDeviceID 原子更新设备当前使用的卡标识
-// 使用事务两步操作：先全部设为 false，再将 currentIccid 对应行设为 true
-// currentIccid 为空字符串时，仅执行全部清空（无当前卡的情况）
-func (s *DeviceSimBindingStore) UpdateIsCurrentByDeviceID(ctx context.Context, deviceID uint, currentIccid string) error {
+// 使用事务两步操作：先全部设为 false，再将 currentSlotNumber 对应插槽设为 true。
+// currentSlotNumber <= 0 时，仅执行全部清空（无当前卡的情况）。
+func (s *DeviceSimBindingStore) UpdateIsCurrentByDeviceID(ctx context.Context, deviceID uint, currentSlotNumber int) error {
 	return s.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
 		if err := tx.Model(&model.DeviceSimBinding{}).
 			Where("device_id = ? AND bind_status = 1", deviceID).
@@ -239,42 +239,22 @@ func (s *DeviceSimBindingStore) UpdateIsCurrentByDeviceID(ctx context.Context, d
 			return err
 		}
 
-		if currentIccid == "" {
+		if currentSlotNumber <= 0 {
 			return nil
 		}
 
-		var column string
-		switch len(currentIccid) {
-		case 19:
-			column = "iccid_19"
-		case 20:
-			column = "iccid_20"
-		default:
-			logger.GetAppLogger().Error("UpdateIsCurrentByDeviceID: ICCID 长度异常，跳过 is_current 更新",
-				zap.String("iccid", currentIccid),
+		result := tx.Model(&model.DeviceSimBinding{}).
+			Where("device_id = ? AND slot_position = ? AND bind_status = 1", deviceID, currentSlotNumber).
+			Update("is_current", true)
+		if result.Error != nil {
+			return result.Error
+		}
+		if result.RowsAffected == 0 {
+			logger.GetAppLogger().Warn("UpdateIsCurrentByDeviceID: 未命中插槽绑定记录，is_current 不更新",
 				zap.Uint("device_id", deviceID),
-				zap.Int("length", len(currentIccid)),
+				zap.Int("current_slot_number", currentSlotNumber),
 			)
-			return nil
 		}
-
-		var iotCardID uint
-		if err := tx.Table("tb_iot_card").
-			Select("id").
-			Where(column+" = ? AND deleted_at IS NULL", currentIccid).
-			Scan(&iotCardID).Error; err != nil {
-			return err
-		}
-		if iotCardID == 0 {
-			logger.GetAppLogger().Warn("UpdateIsCurrentByDeviceID: 未命中卡记录，is_current 不更新",
-				zap.String("iccid", currentIccid),
-				zap.Uint("device_id", deviceID),
-				zap.String("column_used", column),
-			)
-			return nil
-		}
-		return tx.Model(&model.DeviceSimBinding{}).
-			Where("device_id = ? AND iot_card_id = ? AND bind_status = 1", deviceID, iotCardID).
-			Update("is_current", true).Error
+		return nil
 	})
 }