From 92a6031e72852b92c156a9001d88dfed259c128e Mon Sep 17 00:00:00 2001
From: 16337 <1633794139@qq.com>
Date: Fri, 13 Feb 2026 10:29:26 +0800
Subject: [PATCH] =?UTF-8?q?fix(aiot):=20=E4=BF=AE=E5=A4=8D=E5=91=8A?=
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问题描述：
- 前端告警列表对于新触发的告警（duration_ms=null）仍然显示"5分"等具体时长
- 这是因为前端在显示时没有正确处理null值

解决方案：
- 修改 formatDuration 函数，显式检查 duration_ms 是否为 null/undefined
- 当 duration_ms 为 null 时，返回"进行中"而不是"--"
- 简化模板代码，直接调用 formatDuration 函数处理所有情况

影响范围：
- 告警列表表格的持续时长列
- 告警详情弹窗的持续时长字段

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 .../src/views/aiot/alarm/list/index.vue         | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/apps/web-antd/src/views/aiot/alarm/list/index.vue b/apps/web-antd/src/views/aiot/alarm/list/index.vue
index 7347eae3b..8636f71cc 100644
--- a/apps/web-antd/src/views/aiot/alarm/list/index.vue
+++ b/apps/web-antd/src/views/aiot/alarm/list/index.vue
@@ -22,8 +22,10 @@ import {
 defineOptions({ name: 'AiotAlarmList' });
 
 /** 格式化持续时长（毫秒 → 可读文本） */
-function formatDuration(ms: number): string {
-  if (!ms || ms <= 0) return '--';
+function formatDuration(ms: number | null | undefined): string {
+  // 当 duration_ms 为 null 时，说明告警仍在进行中
+  if (ms === null || ms === undefined) return '进行中';
+  if (ms <= 0) return '--';
   if (ms < 60000) {
     return `${Math.round(ms / 1000)} 秒`;
   }
@@ -218,10 +220,7 @@ const [Grid, gridApi] = useVbenVxeGrid({
 
       <!-- 持续时长列 -->
       <template #duration="{ row }">
-        <span v-if="row.durationMs != null && row.durationMs > 0">{{
-          formatDuration(row.durationMs)
-        }}</span>
-        <span v-else class="text-gray-400">--</span>
+        <span>{{ formatDuration(row.durationMs) }}</span>
       </template>
 
       <!-- 结束时间列 -->
@@ -333,11 +332,7 @@ const [Grid, gridApi] = useVbenVxeGrid({
           </div>
           <div>
             <span class="text-gray-500">持续时长：</span>
-            <span>{{
-              currentAlert.durationMs != null && currentAlert.durationMs > 0
-                ? formatDuration(currentAlert.durationMs)
-                : '-'
-            }}</span>
+            <span>{{ formatDuration(currentAlert.durationMs) }}</span>
           </div>
           <div>
             <span class="text-gray-500">触发时间：</span>