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database/init.sql

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+-- 高句丽视频平台数据库初始化脚本
+
+-- 用户表
+CREATE TABLE IF NOT EXISTS users (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  username VARCHAR(50) UNIQUE NOT NULL,
+  password VARCHAR(255) NOT NULL,
+  email VARCHAR(100),
+  avatar VARCHAR(255),
+  role VARCHAR(20) DEFAULT 'user',
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 视频表
+CREATE TABLE IF NOT EXISTS videos (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  title VARCHAR(255) NOT NULL,
+  description TEXT,
+  video_url VARCHAR(500) NOT NULL,
+  file_path VARCHAR(500),
+  cover_url VARCHAR(500),
+  cover_image VARCHAR(500),
+  duration INTEGER DEFAULT 0,
+  file_size INTEGER DEFAULT 0,
+  views INTEGER DEFAULT 0,
+  likes INTEGER DEFAULT 0,
+  category INTEGER,
+  tags TEXT,
+  status VARCHAR(20) DEFAULT 'active',
+  user_id INTEGER,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (user_id) REFERENCES users(id),
+  FOREIGN KEY (category) REFERENCES categories(id)
+);
+
+-- 视频分类表
+CREATE TABLE IF NOT EXISTS categories (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  name VARCHAR(50) UNIQUE NOT NULL,
+  description TEXT,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 视频标签表
+CREATE TABLE IF NOT EXISTS tags (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  name VARCHAR(50) UNIQUE NOT NULL,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 视频标签关联表
+CREATE TABLE IF NOT EXISTS video_tags (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  video_id INTEGER NOT NULL,
+  tag_id INTEGER NOT NULL,
+  FOREIGN KEY (video_id) REFERENCES videos(id) ON DELETE CASCADE,
+  FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE,
+  UNIQUE(video_id, tag_id)
+);
+
+-- 用户点赞表
+CREATE TABLE IF NOT EXISTS user_likes (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  user_id INTEGER NOT NULL,
+  video_id INTEGER NOT NULL,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+  FOREIGN KEY (video_id) REFERENCES videos(id) ON DELETE CASCADE,
+  UNIQUE(user_id, video_id)
+);
+
+-- 播放历史表
+CREATE TABLE IF NOT EXISTS play_history (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  user_id INTEGER,
+  video_id INTEGER NOT NULL,
+  play_time INTEGER DEFAULT 0,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE SET NULL,
+  FOREIGN KEY (video_id) REFERENCES videos(id) ON DELETE CASCADE
+);
+
+-- 视频统计表
+CREATE TABLE IF NOT EXISTS video_stats (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  video_id INTEGER UNIQUE NOT NULL,
+  views INTEGER DEFAULT 0,
+  likes INTEGER DEFAULT 0,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (video_id) REFERENCES videos(id) ON DELETE CASCADE
+);
+
+-- 插入默认管理员用户
+INSERT OR IGNORE INTO users (username, password, email, role) 
+VALUES ('admin', '$2b$10$rQZ8kHWKtGOZvlKJ5mXzKOqGYvKqGYvKqGYvKqGYvKqGYvKqGYvKq', 'admin@goguryeo.com', 'admin');
+
+-- 插入默认分类
+INSERT OR IGNORE INTO categories (name, description) VALUES 
+('历史文化', '高句丽历史文化相关视频'),
+('传统艺术', '传统艺术表演和展示'),
+('语言学习', '高句丽语言学习教程'),
+('考古发现', '考古发现和文物介绍'),
+('民俗风情', '传统民俗和风土人情'),
+('其他', '其他相关内容');
+
+-- 插入默认标签
+INSERT OR IGNORE INTO tags (name) VALUES 
+('高句丽'),
+('历史'),
+('文化'),
+('传统'),
+('艺术'),
+('语言'),
+('考古'),
+('民俗'),
+('教育'),
+('纪录片');
+
+-- 插入示例视频数据
+INSERT OR IGNORE INTO videos (title, description, video_url, file_path, cover_url, cover_image, duration, file_size, views, likes, category, user_id) VALUES 
+('高句丽历史概述', '介绍高句丽王朝的兴起与发展历程', '/videos/sample1.mp4', '/videos/sample1.mp4', '/covers/sample1.jpg', '/covers/sample1.jpg', 1800, 52428800, 1250, 89, 1, 1),
+('传统舞蹈表演', '展示高句丽传统舞蹈的魅力', '/videos/sample2.mp4', '/videos/sample2.mp4', '/covers/sample2.jpg', '/covers/sample2.jpg', 900, 31457280, 856, 67, 2, 1),
+('古代建筑艺术', '探索高句丽古代建筑的独特风格', '/videos/sample3.mp4', '/videos/sample3.mp4', '/covers/sample3.jpg', '/covers/sample3.jpg', 1200, 41943040, 743, 45, 1, 1),
+('语言学习入门', '高句丽语言基础教程第一课', '/videos/sample4.mp4', '/videos/sample4.mp4', '/covers/sample4.jpg', '/covers/sample4.jpg', 1500, 52428800, 432, 23, 3, 1),
+('考古新发现', '最新的高句丽考古发现解读', '/videos/sample5.mp4', '/videos/sample5.mp4', '/covers/sample5.jpg', '/covers/sample5.jpg', 2100, 73400320, 321, 18, 4, 1);

database/migrations/add_sort_order_to_categories.sql

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+-- 为categories表添加sort_order字段支持排序功能
+-- Migration: add_sort_order_to_categories
+
+-- 添加sort_order字段
+ALTER TABLE categories ADD COLUMN sort_order INTEGER DEFAULT 0;
+
+-- 为现有分类设置初始排序值（按创建时间排序）
+UPDATE categories 
+SET sort_order = (
+  SELECT COUNT(*) 
+  FROM categories c2 
+  WHERE c2.created_at <= categories.created_at
+) * 10;
+
+-- 创建索引以提高排序查询性能
+CREATE INDEX IF NOT EXISTS idx_categories_sort_order ON categories(sort_order);

database/migrations/add_topics_tables.sql

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+-- 添加专题功能相关表
+-- 创建时间: 2024-01-20
+
+-- 专题表
+CREATE TABLE IF NOT EXISTS topics (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  name VARCHAR(100) UNIQUE NOT NULL,
+  description TEXT,
+  cover_image VARCHAR(500),
+  sort_order INTEGER DEFAULT 0,
+  status VARCHAR(20) DEFAULT 'active',
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+-- 视频专题关联表（多对多关系）
+CREATE TABLE IF NOT EXISTS video_topics (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  video_id INTEGER NOT NULL,
+  topic_id INTEGER NOT NULL,
+  created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (video_id) REFERENCES videos(id) ON DELETE CASCADE,
+  FOREIGN KEY (topic_id) REFERENCES topics(id) ON DELETE CASCADE,
+  UNIQUE(video_id, topic_id)
+);
+
+-- 创建索引提高查询性能
+CREATE INDEX IF NOT EXISTS idx_video_topics_video_id ON video_topics(video_id);
+CREATE INDEX IF NOT EXISTS idx_video_topics_topic_id ON video_topics(topic_id);
+CREATE INDEX IF NOT EXISTS idx_topics_status ON topics(status);
+CREATE INDEX IF NOT EXISTS idx_topics_sort_order ON topics(sort_order);
+
+-- 插入默认专题
+INSERT OR IGNORE INTO topics (name, description, sort_order) VALUES 
+('历史纪录片', '高句丽历史相关的纪录片和教育视频', 1),
+('文化艺术', '传统文化艺术表演和展示', 2),
+('考古发现', '考古发现和文物研究相关视频', 3),
+('语言教学', '高句丽语言学习和教学视频', 4),
+('民俗传统', '传统民俗风情和节庆活动', 5),
+('建筑遗迹', '古代建筑和遗迹介绍', 6),
+('专家讲座', '学者专家的学术讲座和分析', 7),
+('文物展示', '珍贵文物的展示和介绍', 8);
+
+-- 为现有视频随机分配专题（示例数据）
+INSERT OR IGNORE INTO video_topics (video_id, topic_id)
+SELECT v.id, t.id
+FROM videos v
+CROSS JOIN topics t
+WHERE 
+  (v.id = 1 AND t.name IN ('历史纪录片', '专家讲座')) OR
+  (v.id = 2 AND t.name IN ('文化艺术', '民俗传统')) OR
+  (v.id = 3 AND t.name IN ('建筑遗迹', '历史纪录片')) OR
+  (v.id = 4 AND t.name IN ('语言教学')) OR
+  (v.id = 5 AND t.name IN ('考古发现', '文物展示'));