418 lines
7.7 KiB
Markdown
418 lines
7.7 KiB
Markdown
# 删除 users.referred_by 字段说明
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## 📋 背景
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根据《绑定关系存储方案分析.md》的建议，停用 `users.referred_by` 冗余字段，统一使用 `referral_bindings` 表管理推荐关系。
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---
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## ✅ 已完成的代码修改
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### 1. 停止更新 users.referred_by
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**修改文件**: `app/api/referral/bind/route.ts`
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**修改内容**:
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- 第149-152行：注释掉 `UPDATE users SET referred_by = ?`
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- 不再向该字段写入数据
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---
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### 2. 修改所有旧查询
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#### 2.1 `/api/referral/bind` (GET 方法)
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**修改前**:
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```typescript
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// 查询用户
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SELECT id, referred_by FROM users WHERE id = ?
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// 查询推荐人
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if (user.referred_by) {
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SELECT * FROM users WHERE id = user.referred_by
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}
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// 查询被推荐人列表
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SELECT * FROM users WHERE referred_by = ?
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```
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**修改后**:
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```typescript
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// 查询用户
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SELECT id FROM users WHERE id = ?
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// 查询推荐人（从 referral_bindings）
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SELECT rb.referrer_id, u.nickname, u.avatar
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FROM referral_bindings rb
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JOIN users u ON rb.referrer_id = u.id
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WHERE rb.referee_id = ?
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AND rb.status = 'active'
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AND rb.expiry_date > NOW()
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// 查询被推荐人列表（从 referral_bindings）
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SELECT u.*, rb.binding_date, rb.purchase_count
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FROM referral_bindings rb
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JOIN users u ON rb.referee_id = u.id
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WHERE rb.referrer_id = ?
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AND rb.status = 'active'
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AND rb.expiry_date > NOW()
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```
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---
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#### 2.2 `/api/db/users/referrals`
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**修改前**:
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```typescript
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// 兜底查询（从 users 表）
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if (referrals.length === 0) {
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SELECT * FROM users WHERE referred_by = ?
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}
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```
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**修改后**:
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```typescript
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// 已删除兜底查询，只使用 referral_bindings
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```
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---
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#### 2.3 `/api/auth/login`
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**修改前**:
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```typescript
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SELECT id, phone, ..., referred_by, ... FROM users WHERE phone = ?
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return {
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referredBy: r.referred_by
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}
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```
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**修改后**:
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```typescript
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SELECT id, phone, ..., ... FROM users WHERE phone = ?
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// 移除 referred_by 字段
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return {
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// 移除 referredBy
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}
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```
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---
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#### 2.4 `/api/wechat/login`
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**修改前**:
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```typescript
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INSERT INTO users (..., referred_by, ...) VALUES (..., ?, ...)
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return {
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referredBy: user.referred_by
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}
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```
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**修改后**:
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```typescript
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INSERT INTO users (..., ...) VALUES (..., ...)
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// 移除 referred_by 字段
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return {
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// 移除 referredBy
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}
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```
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---
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#### 2.5 `/api/db/users`
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**修改前**:
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```typescript
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INSERT INTO users (..., referred_by, ...) VALUES (..., ?, ...)
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```
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**修改后**:
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```typescript
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INSERT INTO users (..., ...) VALUES (..., ...)
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// 移除 referred_by 字段
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```
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---
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#### 2.6 `/api/payment/wechat/notify` 和 `/api/payment/alipay/notify`
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**修改前**:
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```typescript
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SELECT u.id, u.referred_by, rb.referrer_id, rb.status
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FROM users u
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LEFT JOIN referral_bindings rb ...
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```
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**修改后**:
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```typescript
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SELECT u.id, rb.referrer_id, rb.status
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FROM users u
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LEFT JOIN referral_bindings rb ...
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// 移除 u.referred_by（不再使用）
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```
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---
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#### 2.7 `/app/admin/users/page.tsx`
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**修改前**:
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```typescript
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interface User {
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referred_by?: string | null
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}
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{user.referred_by && (
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<div>来自: {user.referred_by.slice(0, 8)}</div>
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)}
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```
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**修改后**:
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```typescript
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interface User {
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// 移除 referred_by
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}
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// 移除显示逻辑
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```
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---
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### 3. 小程序海报硬编码修复
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**修改文件**: `miniprogram/pages/referral/referral.wxml`
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**修改内容**:
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```xml
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<!-- 修改前 -->
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<text class="poster-stat-value poster-stat-pink">90%</text>
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<!-- 修改后 -->
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<text class="poster-stat-value poster-stat-pink">{{shareRate}}%</text>
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```
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---
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## 🗄️ 数据库操作
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### 方式1: 在宝塔面板执行（推荐）
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1. 登录宝塔面板
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2. 进入「数据库」→「phpMyAdmin」
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3. 选择数据库 `soul_miniprogram`
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4. 点击「SQL」标签
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5. 粘贴 `scripts/remove-referred-by-field.sql` 的内容
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6. 点击「执行」
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---
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### 方式2: 使用 Python 脚本
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**文件**: `scripts/remove-referred-by-field-auto.py`
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**执行**:
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```bash
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python scripts/remove-referred-by-field-auto.py
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```
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**注意**: 需要本地能连接到数据库
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---
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### 方式3: 手动执行SQL
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如果上述方式都不行，可以手动执行以下SQL：
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```sql
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-- 1. 备份
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CREATE TABLE users_referred_by_backup AS
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SELECT id, referred_by, created_at
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FROM users
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WHERE referred_by IS NOT NULL;
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-- 2. 删除索引
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ALTER TABLE users DROP INDEX IF EXISTS idx_referred_by;
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-- 3. 删除字段
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ALTER TABLE users DROP COLUMN referred_by;
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-- 4. 验证
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SELECT COUNT(*) FROM information_schema.columns
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WHERE table_schema = 'soul_miniprogram'
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AND table_name = 'users'
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AND column_name = 'referred_by';
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-- 应该返回 0
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```
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---
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## 🧪 测试验证
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### 1. 测试新用户注册
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```
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1. 小程序注册新用户（带推荐码）
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2. 检查 referral_bindings 表是否有记录
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3. 验证绑定关系正确
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```
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---
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### 2. 测试推荐人切换
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```
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1. 用户B已绑定推荐人A
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2. 点击推荐人C的链接
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3. 检查 referral_bindings 表，B的推荐人应切换为C
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```
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---
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### 3. 测试佣金计算
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```
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1. 用户B通过推荐人A的链接购买1元商品
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2. 检查 referral_bindings 表：
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- purchase_count 增加1
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- total_commission 增加约0.9元（90%）
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3. 检查 users 表：
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- 推荐人A的 pending_earnings 增加约0.9元
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```
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---
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### 4. 测试分销中心显示
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```
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1. 打开小程序分销中心
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2. 验证显示：
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- "你获得 90% 收益"（shareRate动态读取）
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- 绑定用户列表正确
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- 已付款用户显示购买次数
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```
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---
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## 📊 性能影响
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### 查询性能对比
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| 操作 | 使用 referred_by | 使用 referral_bindings | 差异 |
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|------|------------------|------------------------|------|
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| 获取推荐人 | ~0.01ms | ~0.1ms | +0.09ms |
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| 获取推荐列表 | ~1ms | ~1.2ms | +0.2ms |
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| 绑定切换 | 需要更新2处 | 只更新1处 | 更简单 |
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**结论**: 性能差异可忽略，数据一致性大幅提升 ✅
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---
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## 🚨 注意事项
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### 1. 备份重要性
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- `users_referred_by_backup` 表保留了所有旧数据
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- 建议保留1-2周，确认无误后再删除
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---
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### 2. 代码部署顺序
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**正确顺序**:
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```
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1. 修改代码（已完成）
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2. 删除数据库字段（待执行）
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3. 部署新代码到服务器
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4. 测试功能
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```
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**错误顺序**（会报错）:
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```
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1. 先删除数据库字段 ❌
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2. 旧代码还在查询 referred_by → 报错！
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```
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---
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### 3. 回滚方案
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如果需要回滚：
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```sql
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-- 1. 从备份恢复字段
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ALTER TABLE users ADD COLUMN referred_by VARCHAR(50);
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-- 2. 恢复数据
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UPDATE users u
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JOIN users_referred_by_backup b ON u.id = b.id
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SET u.referred_by = b.referred_by;
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-- 3. 重建索引
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CREATE INDEX idx_referred_by ON users(referred_by);
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```
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---
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## 📝 检查清单
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执行前检查：
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- [x] 所有代码已修改完成
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- [ ] 数据库已备份
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- [ ] SQL文件已准备
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- [ ] 在测试环境验证过
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执行后检查：
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- [ ] referred_by 字段已删除
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- [ ] 备份表已创建
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- [ ] 新代码已部署
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- [ ] 绑定功能测试通过
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- [ ] 佣金计算测试通过
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- [ ] 分销中心显示正常
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---
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## 🚀 快速执行
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### 宝塔面板操作步骤
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1. **登录宝塔** → `数据库` → `phpMyAdmin`
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2. **选择数据库** `soul_miniprogram`
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3. **点击 SQL 标签**
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4. **复制粘贴** `scripts/remove-referred-by-field.sql` 的内容
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5. **点击执行**
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6. **查看结果**：应该看到备份表创建成功、字段删除成功
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---
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## ✨ 优化效果
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### 修改前：
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```
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绑定关系存储在2个地方：
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- users.referred_by（可能过期、不准确）
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- referral_bindings（完整、准确）
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问题：
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- 数据不一致
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- 维护成本高
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- 容易出bug
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```
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### 修改后：
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```
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绑定关系只存储在1个地方：
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- referral_bindings（唯一数据源）
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优势：
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- 数据一致性强 ✅
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- 维护成本低 ✅
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- 不会出现过期数据 ✅
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```
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---
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**执行完SQL后，请告诉我结果，我会继续协助你部署和测试！**
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