🎯 前言
在企业数字化转型浪潮中,AIGC本地文档生成系统正成为提升工作效率的核心工具。如何设计一套既能支撑AI智能生成,又能保障数据安全的数据库架构?今天我们以drawDB为设计工具,手把手教你构建本地化文档生成系统的数据底座。
🚀 为什么选择drawDB?
https://github.com/drawdb-io/drawdb 作为一款免费的数据库设计工具,具备三大核心优势:
可视化设计:拖拽式操作,所见即所得
多数据库支持:支持MySQL、PostgreSQL、SQLite等主流数据库
一键导出:自动生成标准SQL脚本
📚 AIGC文档生成系统架构设计
系统核心功能
智能文档模板管理
AI驱动的内容生成
多格式输出支持(Word、PDF、HTML)
数据源集成和版本控制
用户权限和审批流程
🎨 第一步:核心表结构设计
1. 用户和权限管理
基于template2的员工管理模式L1-L50,我们设计用户体系:
JAVASCRIPT
// 用户表{ name: "users", fields: [ { name: "id", type: "INT", primary: true, increment: true, notNull: true }, { name: "username", type: "VARCHAR(50)", unique: true, notNull: true }, { name: "email", type: "VARCHAR(100)", unique: true, notNull: true }, { name: "role_id", type: "INT", notNull: true }, { name: "api_quota", type: "INT", default: 1000, comment: "AI生成配额" } ], comment: "系统用户表"} // 角色权限表{ name: "roles", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "role_name", type: "VARCHAR(50)", notNull: true }, { name: "permissions", type: "JSON", comment: "权限配置JSON" } ]}2. 文档模板管理
JAVASCRIPT
// 文档模板表{ name: "document_templates", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "name", type: "VARCHAR(100)", notNull: true }, { name: "category", type: "VARCHAR(50)", notNull: true }, { name: "template_content", type: "TEXT", notNull: true, comment: "模板结构JSON" }, { name: "variables", type: "JSON", comment: "模板变量定义" }, { name: "created_by", type: "INT", notNull: true } ]} // 模板版本控制表{ name: "template_versions", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "template_id", type: "INT", notNull: true }, { name: "version", type: "VARCHAR(20)", notNull: true }, { name: "content", type: "TEXT", notNull: true }, { name: "change_log", type: "TEXT" }, { name: "created_at", type: "TIMESTAMP", default: "CURRENT_TIMESTAMP" } ]}3. AI生成任务管理
JAVASCRIPT
// 生成任务表{ name: "generation_tasks", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "user_id", type: "INT", notNull: true }, { name: "template_id", type: "INT", notNull: true }, { name: "prompt", type: "TEXT", notNull: true }, { name: "parameters", type: "JSON", comment: "生成参数配置" }, { name: "status", type: "ENUM('pending','processing','completed','failed')", default: "pending" }, { name: "priority", type: "INT", default: 5, comment: "任务优先级(1-10)" }, { name: "created_at", type: "TIMESTAMP", default: "CURRENT_TIMESTAMP" } ]} // 生成结果表{ name: "generation_results", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "task_id", type: "INT", unique: true, notNull: true }, { name: "generated_content", type: "TEXT", notNull: true }, { name: "output_format", type: "ENUM('docx','pdf','html','md')", notNull: true }, { name: "file_path", type: "VARCHAR(255)" }, { name: "tokens_used", type: "INT", default: 0 }, { name: "generation_time", type: "INT", comment: "生成耗时(秒)" } ]}4. 数据源管理
JAVASCRIPT
// 数据源表{ name: "data_sources", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "name", type: "VARCHAR(100)", notNull: true }, { name: "type", type: "ENUM('database','api','file','webhook')", notNull: true }, { name: "connection_config", type: "JSON", comment: "连接配置" }, { name: "owner_id", type: "INT", notNull: true }, { name: "is_active", type: "BOOLEAN", default: true } ]} // 数据字段映射表{ name: "field_mappings", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "template_id", type: "INT", notNull: true }, { name: "source_id", type: "INT", notNull: true }, { name: "template_field", type: "VARCHAR(100)", notNull: true }, { name: "source_field", type: "VARCHAR(100)", notNull: true }, { name: "data_type", type: "VARCHAR(50)" } ]}🔗 第二步:建立表关系
在drawDB中,我们可以通过拖拽方式建立外键关系:
JAVASCRIPT
// 主要关系映射relationships: [ { from: "users.id", to: "generation_tasks.user_id", type: "one_to_many" }, { from: "document_templates.id", to: "generation_tasks.template_id", type: "one_to_many" }, { from: "generation_tasks.id", to: "generation_results.task_id", type: "one_to_one" }, { from: "roles.id", to: "users.role_id", type: "one_to_many" }]🎯 第三步:drawDB可视化设计实操
步骤1:创建新项目
选择"New Diagram"创建新项目
设置数据库名称和选择目标数据库类型(推荐PostgreSQL)
步骤2:添加数据表
点击"+"按钮添加新表
输入表名,如"users"、"document_templates"等
逐个添加字段,设置数据类型和约束
步骤3:建立关系
拖拽主键字段到外键字段
设置Cardinality关系类型L28-L33
配置约束规则(CASCADE、SET NULL等)
步骤4:导出SQL
点击"Export"按钮
选择SQL格式
选择目标数据库类型
下载生成的SQL文件
📊 第四步:SQL代码生成
drawDB自动生成的建表脚本示例:
SQL
-- PostgreSQL版本CREATE TABLE users ( id SERIAL PRIMARY KEY, username VARCHAR(50) UNIQUE NOT NULL, email VARCHAR(100) UNIQUE NOT NULL, role_id INTEGER NOT NULL, api_quota INTEGER DEFAULT 1000, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP); CREATE TABLE roles ( id SERIAL PRIMARY KEY, role_name VARCHAR(50) NOT NULL, permissions JSONB); CREATE TABLE document_templates ( id SERIAL PRIMARY KEY, name VARCHAR(100) NOT NULL, category VARCHAR(50) NOT NULL, template_content TEXT NOT NULL, variables JSONB, created_by INTEGER NOT NULL, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP); CREATE TABLE generation_tasks ( id SERIAL PRIMARY KEY, user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE, template_id INTEGER NOT NULL REFERENCES document_templates(id) ON DELETE CASCADE, prompt TEXT NOT NULL, parameters JSONB, status VARCHAR(20) DEFAULT 'pending', priority INTEGER DEFAULT 5, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP); -- 添加索引优化查询性能CREATE INDEX idx_generation_tasks_user_id ON generation_tasks(user_id);CREATE INDEX idx_generation_tasks_status ON generation_tasks(status);CREATE INDEX idx_document_templates_category ON document_templates(category);🚀 第五步:本地部署配置
Docker容器化部署
YAML
# docker-compose.ymlversion: '3.8'services: postgres: image: postgres:15 environment: POSTGRES_DB: aigc_docs POSTGRES_USER: aigc_user POSTGRES_PASSWORD: secure_password ports: - "5432:5432" volumes: - postgres_data:/var/lib/postgresql/data drawdb: build: . ports: - "3000:80" depends_on: - postgres volumes: postgres_data:数据库初始化脚本
BASH
#!/bin/bash# init_db.shpsql -h localhost -U aigc_user -d aigc_docs -f schema.sql # 插入初始数据psql -h localhost -U aigc_user -d aigc_docs << EOFINSERT INTO roles (role_name, permissions) VALUES ('admin', '{"create": true, "edit": true, "delete": true, "generate": true}'),('editor', '{"create": true, "edit": true, "delete": false, "generate": true}'),('viewer', '{"create": false, "edit": false, "delete": false, "generate": false}');EOF💡 高级功能实现
1. 智能模板推荐
SQL
-- 基于用户使用历史的模板推荐查询SELECT DISTINCT t.id, t.name, t.category, COUNT(g.id) as usage_countFROM document_templates tJOIN generation_tasks g ON t.id = g.template_idJOIN users u ON g.user_id = u.idWHERE u.department = :user_department AND g.created_at > NOW() - INTERVAL '30 days'GROUP BY t.id, t.name, t.categoryORDER BY usage_count DESCLIMIT 5;2. 生成任务队列管理
SQL
-- 优先级任务队列查询SELECT gt.*, u.username, dt.name as template_nameFROM generation_tasks gtJOIN users u ON gt.user_id = u.idJOIN document_templates dt ON gt.template_id = dt.idWHERE gt.status = 'pending'ORDER BY gt.priority DESC, gt.created_at ASC;3. 使用统计报表
SQL
-- 月度生成统计SELECT DATE_TRUNC('month', gr.created_at) as month, COUNT(*) as total_documents, SUM(gr.tokens_used) as total_tokens, AVG(gr.generation_time) as avg_generation_timeFROM generation_results grGROUP BY DATE_TRUNC('month', gr.created_at)ORDER BY month DESC;🎯 实际应用场景
场景1:企业合同生成
使用合同模板库
集成CRM数据源
AI智能条款推荐
多级审批流程
场景2:技术文档生成
API文档自动生成
代码注释转文档
多语言版本管理
版本差异对比
场景3:营销材料制作
产品介绍文档
客户案例报告
市场分析报告
个性化定制
📈 性能优化建议
1. 数据库层面
合理使用索引,特别是在外键和查询字段上
定期清理历史数据,使用分区表
配置连接池,避免频繁连接
2. 应用层面
实现任务队列,异步处理生成任务
使用Redis缓存热点模板和数据
实现断点续传和任务重试机制
3. 架构层面
微服务拆分,独立AI生成服务
负载均衡,水平扩展生成节点
监控告警,实时跟踪系统状态
🔧 扩展功能模块
1. 审批工作流
JAVASCRIPT
// 审批流程表{ name: "approval_workflows", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "task_id", type: "INT", notNull: true }, { name: "approver_id", type: "INT", notNull: true }, { name: "status", type: "ENUM('pending','approved','rejected')", default: "pending" }, { name: "comments", type: "TEXT" } ]}2. 模板市场
JAVASCRIPT
Copy code
// 模板市场表{ name: "template_market", fields: [ { name: "id", type: "INT", primary: true, increment: true }, { name: "template_name", type: "VARCHAR(100)", notNull: true }, { name: "category", type: "VARCHAR(50)", notNull: true }, { name: "price", type: "DECIMAL(10,2)", default: 0.00 }, { name: "download_count", type: "INT", default: 0 }, { name: "rating", type: "DECIMAL(2,1)", default: 5.0 } ]}🎯 总结
通过drawDB设计的AIGC本地文档生成系统具备:
✅ 完整的数据架构:从用户管理到模板控制的全流程支持
✅ 灵活的扩展性:模块化设计,便于功能迭代
✅ 高性能保障:合理的索引和查询优化
✅ 安全可控:本地部署,数据完全自主掌控
这套架构不仅满足当前文档生成需求,更为未来AI能力扩展预留了充分空间。借助drawDB的可视化设计能力,复杂的数据架构设计变得简单高效。
🔥 立即体验: https://drawdb.app/ | https://github.com/drawdb-io/drawdb