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- API 路由统一: 移除 /api/h5/，统一 /api/pms/ 入口 - 二进制改名: api-server -> pms-api（与服务名一致） - nginx: 合并 /api/ + /pms/api/ 为 /api/pms/ - 新增 docs/API.md 接口文档 - 后端: CabinetDetail 增加 rssi/pow_fail/address/soc 等字段 - Redis 管道批量读取仓体实时数据（SOC/电压/电流/功率） - DB: 所有 TIMESTAMP 列改为 DATETIME（修复类型不匹配） - 用户管理: 新增创建时间/修改时间列，状态改用 Switch - 角色管理/用户管理: 操作按钮改为图标 - PC 设备详情: 基本信息补全 RSSI/ICCID/电源/地址 - PC 卡片: 通道统计改用 Lucide 图标，颜色统一 - PC 二维码: canvas 渲染，含编号文字，支持右键下载 - H5: 按 uni-app 规范修正导航（navigateTo 替代 reLaunch） - H5: 详情页加返回导航条 - H5: 扫码支持摄像头（jsQR）+ ?id= 参数 - H5: 底部 tabBar 在所有页面常显 - H5: 首页统计改为 6 项（设备/通道/空闲/充电/充满/故障） - H5: 下拉刷新 / 上拉加载 - 产品首页: 添加业务联系 - 文档: 清理过时文件，补充缺失规范章节
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title, impact, impactDescription, type, tags
| title | impact | impactDescription | type | tags | |||||
|---|---|---|---|---|---|---|---|---|---|
| Transition Only Supports Single Element or Component as Slot Content | HIGH | Using multiple elements inside Transition causes the transition to fail silently or produce unexpected results | gotcha |
|
Transition Only Supports Single Element or Component as Slot Content
Impact: HIGH - The <Transition> component can only wrap a single element or component. If you pass multiple elements or a component with multiple root elements, the transition will not work correctly and may fail silently without any error message.
This is one of the most common mistakes when using Vue transitions, especially for developers coming from other frameworks or when refactoring existing code.
Task Checklist
- Ensure only ONE element or component is inside
<Transition> - If wrapping a component, verify the component has only ONE root element
- When using
v-if/v-else, elements must be mutually exclusive (only one visible at a time) - Use a wrapper
<div>if you need to transition multiple elements together
Problematic Code:
<template>
<!-- BAD: Multiple elements inside Transition -->
<Transition name="fade">
<h1>Title</h1>
<p>Content</p>
</Transition>
</template>
<template>
<!-- BAD: Component with multiple root elements -->
<Transition name="fade">
<MyMultiRootComponent v-if="show" />
</Transition>
</template>
<!-- MyMultiRootComponent.vue -->
<template>
<header>Header</header>
<main>Main</main>
<footer>Footer</footer>
</template>
Correct Code:
<template>
<!-- GOOD: Single wrapper element -->
<Transition name="fade">
<div v-if="show">
<h1>Title</h1>
<p>Content</p>
</div>
</Transition>
</template>
<template>
<!-- GOOD: v-if/v-else with mutually exclusive elements -->
<Transition name="fade" mode="out-in">
<button v-if="isEditing" @click="save">Save</button>
<button v-else @click="edit">Edit</button>
</Transition>
</template>
<template>
<!-- GOOD: Component with single root -->
<Transition name="fade">
<MyComponent v-if="show" />
</Transition>
</template>
<!-- MyComponent.vue -->
<template>
<div class="my-component">
<header>Header</header>
<main>Main</main>
<footer>Footer</footer>
</div>
</template>
Dynamic Components with Transition
<template>
<!-- GOOD: Dynamic components work as single elements -->
<Transition name="fade" mode="out-in">
<component :is="currentView" />
</Transition>
</template>
<script setup>
import { shallowRef } from 'vue'
import Home from './Home.vue'
import About from './About.vue'
const currentView = shallowRef(Home)
</script>
Common Symptoms of This Issue
- No transition animation occurs
- Elements appear/disappear instantly
- Inconsistent animation behavior
- Vue devtools shows no transition state changes