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

Use Getter Function When Watching Reactive Object Properties

Impact: HIGH - Directly watching a property of a reactive object passes a primitive value to watch(), not a reactive reference. The watcher will never trigger because primitives are not reactive.

When you need to watch a specific property of a reactive object, always wrap it in a getter function () => obj.property.

Task Checklist

Always use getter functions when watching properties of reactive objects
Remember that watch(obj.count, ...) passes the current value, not a reactive reference
For refs, you can watch directly: watch(myRef, ...)
For entire reactive objects, you can watch directly (creates implicit deep watcher)

Incorrect:

import { reactive, watch } from 'vue'

const state = reactive({ count: 0, name: 'Vue' })

// WRONG: Passes the number 0 to watch(), not a reactive reference
// This watcher will NEVER fire!
watch(state.count, (newCount) => {
  console.log(`Count changed to: ${newCount}`)
})

// WRONG: Same problem with string property
watch(state.name, (newName) => {
  console.log(`Name changed to: ${newName}`)
})

Correct:

import { reactive, watch } from 'vue'

const state = reactive({ count: 0, name: 'Vue' })

// CORRECT: Use a getter function
watch(
  () => state.count,
  (newCount, oldCount) => {
    console.log(`Count changed from ${oldCount} to ${newCount}`)
  }
)

// CORRECT: Multiple properties with getter
watch(
  () => state.name,
  (newName) => {
    console.log(`Name changed to: ${newName}`)
  }
)

// CORRECT: Watching derived values
watch(
  () => state.count * 2,
  (doubledCount) => {
    console.log(`Doubled count: ${doubledCount}`)
  }
)

Watching Multiple Properties

import { reactive, watch } from 'vue'

const state = reactive({ firstName: 'John', lastName: 'Doe' })

// Watch multiple properties with array of getters
watch(
  [() => state.firstName, () => state.lastName],
  ([newFirst, newLast], [oldFirst, oldLast]) => {
    console.log(`Name changed from ${oldFirst} ${oldLast} to ${newFirst} ${newLast}`)
  }
)

When Direct Watching Works

import { ref, reactive, watch } from 'vue'

const count = ref(0)
const state = reactive({ nested: { value: 1 } })

// CORRECT: Refs can be watched directly
watch(count, (newVal) => {
  console.log(`Count: ${newVal}`)
})

// CORRECT: Entire reactive objects create implicit deep watcher
watch(state, (newState) => {
  // Fires on any nested change
  // Note: newState === oldState (same object reference)
})

Reference

Vue.js Watchers - Watch Source Types

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