From 273b282af6f74403a0b13d2694beb4b7f48edaf6 Mon Sep 17 00:00:00 2001
From: gaoxun250@sina.com <gaoxun250@sina.com>
Date: 星期五, 10 三月 2023 10:33:48 +0800
Subject: [PATCH] 防止回放空时报空指针

---
 src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java b/src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java
index 35a42c5..ae130cf 100644
--- a/src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java
+++ b/src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java
@@ -114,4 +114,7 @@
             "         left join device d on dc.deviceId = d.deviceId\n" +
             "where dc.channelId = #{channelId} and pgc.platformId=#{platformId}")
     List<Device> queryDeviceInfoByPlatformIdAndChannelId(String platformId, String channelId);
+
+    @Select("SELECT pgc.platformId FROM platform_gb_channel pgc left join device_channel dc on dc.id = pgc.deviceChannelId WHERE dc.channelId='${channelId}'")
+    List<String> queryParentPlatformByChannelId(String channelId);
 }

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