用drawDB打造智能文档生成系统的数据库架构

作者:红鱼AI 发布时间: 2025-11-03 阅读量:63

🎯 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

  1. 打开https://drawdb.app/

  2. 选择"New Diagram"创建新项目

  3. 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

  1. 点击"+"按钮添加新表

  2. 输入表名,如"users"、"document_templates"等

  3. 逐个添加字段,设置数据类型和约束

步骤3:建立关系

  1. 拖拽主键字段到外键字段

  2. 设置Cardinality关系类型L28-L33

  3. 配置约束规则(CASCADE、SET NULL等)

步骤4:导出SQL

  1. 点击"Export"按钮

  2. 选择SQL格式

  3. 选择目标数据库类型

  4. 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