12451 b553c4e519 feat: API 统一 + 设备详情补全 + H5 导航优化

- 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

2026-07-04 04:03:02 +08:00

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title, impact, impactDescription, type, tags

title

impact

impactDescription

type

Computed Property Getters Must Be Side-Effect Free

Impact: HIGH - Computed getter functions should only perform pure computation. Side effects in computed getters break Vue's reactivity model and cause bugs that are difficult to trace.

Computed properties are designed to declaratively describe how to derive a value from other reactive state. They are not meant to perform actions or modify state.

Task Checklist

Never mutate other reactive state inside a computed getter
Never make async requests or API calls inside a computed getter
Never perform DOM mutations inside a computed getter
Use watchers for reacting to state changes with side effects
Use event handlers for user-triggered actions

Incorrect:

<script setup>
import { ref, computed } from 'vue'

const items = ref([])
const count = ref(0)
const lastFetch = ref(null)

// BAD: Mutates other state
const doubledCount = computed(() => {
  count.value++  // Side effect - modifying state!
  return count.value * 2
})

// BAD: Makes async request
const userData = computed(async () => {
  const response = await fetch('/api/user')  // Side effect - API call!
  return response.json()
})

// BAD: Modifies DOM
const highlightedItems = computed(() => {
  document.title = `${items.value.length} items`  // Side effect - DOM mutation!
  return items.value.filter(i => i.highlighted)
})

// BAD: Writes to external state
const processedData = computed(() => {
  lastFetch.value = new Date()  // Side effect - modifying state!
  return items.value.map(i => i.name)
})
</script>

Correct:

<script setup>
import { ref, computed, watch, onMounted } from 'vue'

const items = ref([])
const count = ref(0)
const userData = ref(null)

// GOOD: Pure computation only
const doubledCount = computed(() => {
  return count.value * 2
})

// GOOD: Use lifecycle hook for initial fetch
onMounted(async () => {
  const response = await fetch('/api/user')
  userData.value = await response.json()
})

// GOOD: Pure filtering
const highlightedItems = computed(() => {
  return items.value.filter(i => i.highlighted)
})

// GOOD: Use watcher for side effects
watch(items, (newItems) => {
  document.title = `${newItems.length} items`
}, { immediate: true })

// Increment count through event handler, not computed
function increment() {
  count.value++
}
</script>

What Counts as a Side Effect

Side Effect Type	Example	Alternative
State mutation	`otherRef.value = x`	Use watcher
API calls	`fetch()`, `axios()`	Use watcher or lifecycle hook
DOM manipulation	`document.title = x`	Use watcher
Console logging	`console.log()`	Remove or use watcher
Storage access	`localStorage.setItem()`	Use watcher
Timer setup	`setTimeout()`	Use lifecycle hook

Reference

Vue.js Computed Properties - Getters Should Be Side-Effect Free

3.2 KiB Raw Blame History

Computed Property Getters Must Be Side-Effect Free

Task Checklist

What Counts as a Side Effect

Reference

3.2 KiB

Raw Blame History