Skip to content
FunCoding

Search

Search docs, Skills and MCP

field-mapping-safety

当重构涉及字段映射(dataIndex、枚举映射、类型转换)时触发。防止字段名推测错误,确保字段映射的正确性。

项目与协作1.1kskills/field-mapping-safety/SKILL.md

Install

Send this to Claude Code, Codex or Cursor. The agent checks the Skill for safety first and installs it only after you confirm.

读取 https://funcoding.ai/skills/doccker/cc-use-exp/skills-field-mapping-safety/install.md ,按里面的步骤帮我安装这个 Skill。

SKILL.md

字段映射安全规范

触发场景

  • 重构表格列定义(dataIndex、columns)
  • 重构枚举类型映射(typeMap、statusMap)
  • 重构数据转换逻辑(render 函数、formatter)
  • 类型定义中有多个相似字段(changedAt vs createdAt)

核心原则

不要根据类型定义推测字段名,必须查看原始代码的实际使用


检查清单

1. 字段名验证

  • 查看原始代码的 dataIndex
  • 查看后端 API 返回的实际字段名
  • 优先使用必填字段,避免可选字段
  • 注意字段名的细微差异(changedAt vs createdAt、changeType vs operationType)

2. 枚举映射验证

  • 对照原始代码,逐个检查枚举值
  • 确保映射完整(不遗漏任何枚举值)
  • 检查枚举值的拼写(UPLOAD vs Upload)
  • 检查枚举值的颜色、文本是否一致

3. 运行时测试

  • TypeScript 类型检查通过(必要但不充分)
  • 在实际环境中测试功能
  • 检查是否显示 "Invalid Date"、"undefined"、空白
  • 检查枚举值是否都有对应的映射

常见陷阱

陷阱 1: 类型定义有歧义

场景:类型定义中有多个相似字段

interface InvoiceHistory {
  changedAt?: string  // 可选字段
  createdAt: string   // 必填字段
  changeType?: string // 错误字段
  operationType: string // 正确字段
}

错误做法:

// ❌ 根据类型定义推测,选择了可选字段
dataIndex: 'changedAt'  // 可能为 undefined → Invalid Date
dataIndex: 'changeType' // 字段不存在 → 显示为空

正确做法:

// ✅ 查看原始代码的实际使用
git show HEAD~1:src/components/InvoiceHistoryTab.tsx

// 原始代码使用 createdAt(必填)和 operationType(正确)
dataIndex: 'createdAt'
dataIndex: 'operationType'

陷阱 2: 枚举映射不完整

场景:重构时遗漏部分枚举值

错误做法:

// ❌ 只保留了 3 个类型
typeMap: {
  CREATE: { text: '创建', color: 'green' },
  UPDATE: { text: '更新', color: 'blue' },
  DELETE: { text: '删除', color: 'red' },
}

正确做法:

// ✅ 查看原始代码,确保完整
git show HEAD~1:src/components/InvoiceHistoryTab.tsx

// 原始代码有 10 个类型
typeMap: {
  UPLOAD: { text: '上传发票', color: 'blue' },
  OCR_START: { text: '开始OCR', color: 'cyan' },
  OCR_SUCCESS: { text: 'OCR成功', color: 'green' },
  OCR_FAILED: { text: 'OCR失败', color: 'red' },
  OCR_RETRY: { text: '重试OCR', color: 'orange' },
  MANUAL_EDIT: { text: '手动编辑', color: 'orange' },
  LINK_ORDER: { text: '关联订单', color: 'purple' },
  UNLINK_ORDER: { text: '取消关联', color: 'magenta' },
  FIELD_CONFIRM: { text: '确认字段', color: 'green' },
  DELETE: { text: '删除发票', color: 'red' },
}

陷阱 3: TypeScript 无法检测

场景:字段名错误但 TypeScript 不报错

// ❌ TypeScript 不会报错(changedAt 在类型定义中存在)
dataIndex: 'changedAt'  // 类型检查通过
render: (val: string) => new Date(val).toLocaleString()
// 运行时:val 为 undefined → Invalid Date

正确做法:

// ✅ 运行时测试 + 防御性编程
dataIndex: 'createdAt'
render: (val: string) => {
  if (!val) return '-'
  try {
    return new Date(val).toLocaleString('zh-CN')
  } catch {
    return val
  }
}

陷阱 4: rowKey 使用可选字段

场景:rowKey 使用了可能为 undefined 的字段

错误做法:

// ❌ changedAt 可能为 undefined
rowKey={(record, index) => `${record.changedAt}-${index}`}
// 结果:undefined-0, undefined-1 → key 重复

正确做法:

// ✅ 使用必填字段 id
rowKey={(record) => record.id}

验证流程

1. 静态检查

# TypeScript 类型检查
npm run type-check

# ESLint 检查
npm run lint

2. 运行时测试

  • 在开发环境中测试功能
  • 检查是否显示 "Invalid Date"
  • 检查是否显示 "undefined" 或空白
  • 检查枚举值是否都有对应的映射
  • 检查 rowKey 是否唯一

3. 对比验证

# 查看原始代码
git show HEAD~1:src/components/InvoiceHistoryTab.tsx

# 制作对比清单
| 字段 | 原始代码 | 重构后 | 状态 |
|------|---------|--------|------|
| 时间字段 | createdAt | changedAt | ❌ 错误 |
| 操作类型 | operationType | changeType | ❌ 错误 |
| 枚举映射 | 10 个 | 3 个 | ❌ 不完整 |
| rowKey | record.id | record.changedAt | ❌ 错误 |

防御性编程

1. 可选字段处理

// ✅ 检查字段是否存在
render: (val: string) => {
  if (!val) return '-'
  return val
}

2. 日期格式化

// ✅ 捕获异常
render: (val: string) => {
  if (!val) return '-'
  try {
    return new Date(val).toLocaleString('zh-CN', {
      year: 'numeric',
      month: '2-digit',
      day: '2-digit',
      hour: '2-digit',
      minute: '2-digit',
      second: '2-digit',
      hour12: false,
    })
  } catch {
    return val
  }
}

3. 枚举映射

// ✅ 提供默认值
render: (type: string) => {
  const config = typeMap[type] || { text: type, color: 'default' }
  return <Tag color={config.color}>{config.text}</Tag>
}

规则溯源

> 📋 本回复遵循:`field-mapping-safety` - [章节]

Similar Skills

slack-gif-creator
anthropics/skills180k

slack-gif-creator

Knowledge and utilities for creating animated GIFs optimized for Slack. Provides constraints, validation tools, and animation concepts. Use when users request animated GIFs for Slack like "make me a GIF of X doing Y for Slack."

Projects & collaboration

observability-and-instrumentation
addyosmani/agent-skills103k

observability-and-instrumentation

Instruments code so production behavior is visible and diagnosable. Use when adding logging, metrics, tracing, or alerting. Use when shipping any feature that runs in production and you need evidence it works. Use when production issues are reported but you can't tell what happened from the available data.

Projects & collaboration

understand-diff
Egonex-AI/Understand-Anything86k

understand-diff

Use when you need to analyze git diffs or pull requests to understand what changed, affected components, and risks

Projects & collaboration

skill-share
ComposioHQ/awesome-claude-skills77k

skill-share

A skill that creates new Claude skills and automatically shares them on Slack using Rube for seamless team collaboration and skill discovery.

Projects & collaboration

slack-gif-creator
ComposioHQ/awesome-claude-skills77k

slack-gif-creator

Toolkit for creating animated GIFs optimized for Slack, with validators for size constraints and composable animation primitives. This skill applies when users request animated GIFs or emoji animations for Slack from descriptions like "make me a GIF for Slack of X doing Y".

Projects & collaboration

connect-apps
ComposioHQ/awesome-claude-skills77k

connect-apps

Connect Claude to external apps like Gmail, Slack, GitHub. Use this skill when the user wants to send emails, create issues, post messages, or take actions in external services.

Projects & collaboration