注册表新增数据库存储同步
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const { defaultLogger } = require('../utils/logger');
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const logger = defaultLogger.child('RegistrySchema');
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/**
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* 注册表数据库表结构管理
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*/
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class RegistrySchema {
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constructor(databaseManager) {
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this.db = databaseManager;
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}
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/**
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* 初始化所有注册表相关的数据库表
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*/
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async initializeTables() {
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try {
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await this.createArtistsTable();
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await this.createArtworksTable();
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await this.createRegistryMetaTable();
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logger.info('注册表数据库表初始化完成');
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return { success: true };
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} catch (error) {
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logger.error('初始化注册表数据库表失败:', error);
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throw error;
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}
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}
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/**
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* 创建艺术家表
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*/
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async createArtistsTable() {
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const tableName = 'registry_artists';
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if (await this.db.tableExists(tableName)) {
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logger.debug(`表 ${tableName} 已存在，跳过创建`);
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return;
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}
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const createSQL = `
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CREATE TABLE ${tableName} (
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id INT AUTO_INCREMENT PRIMARY KEY,
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artist_name VARCHAR(255) NOT NULL UNIQUE COMMENT '艺术家名称',
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normalized_name VARCHAR(255) NOT NULL COMMENT '标准化后的艺术家名称',
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artwork_count INT DEFAULT 0 COMMENT '作品数量',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_artist_name (artist_name),
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INDEX idx_normalized_name (normalized_name)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='注册表艺术家表';
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`;
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await this.db.createTable(tableName, createSQL);
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}
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/**
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* 创建作品表
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*/
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async createArtworksTable() {
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const tableName = 'registry_artworks';
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if (await this.db.tableExists(tableName)) {
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logger.debug(`表 ${tableName} 已存在，跳过创建`);
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return;
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}
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const createSQL = `
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CREATE TABLE ${tableName} (
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id INT AUTO_INCREMENT PRIMARY KEY,
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artist_id INT NOT NULL COMMENT '艺术家ID',
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artwork_id BIGINT NOT NULL COMMENT '作品ID',
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artist_name VARCHAR(255) NOT NULL COMMENT '艺术家名称（冗余字段，便于查询）',
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file_path TEXT COMMENT '文件路径（可选）',
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download_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '下载时间',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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UNIQUE KEY uk_artist_artwork (artist_id, artwork_id),
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INDEX idx_artwork_id (artwork_id),
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INDEX idx_artist_id (artist_id),
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INDEX idx_artist_name (artist_name),
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INDEX idx_download_date (download_date),
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FOREIGN KEY (artist_id) REFERENCES registry_artists(id) ON DELETE CASCADE
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='注册表作品表';
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`;
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await this.db.createTable(tableName, createSQL);
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}
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/**
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* 创建注册表元数据表
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*/
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async createRegistryMetaTable() {
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const tableName = 'registry_meta';
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if (await this.db.tableExists(tableName)) {
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logger.debug(`表 ${tableName} 已存在，跳过创建`);
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return;
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}
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const createSQL = `
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CREATE TABLE ${tableName} (
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id INT AUTO_INCREMENT PRIMARY KEY,
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meta_key VARCHAR(100) NOT NULL UNIQUE COMMENT '元数据键',
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meta_value TEXT COMMENT '元数据值',
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description TEXT COMMENT '描述',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_meta_key (meta_key)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='注册表元数据表';
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`;
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await this.db.createTable(tableName, createSQL);
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// 插入初始元数据
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await this.initializeMetaData();
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}
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/**
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* 初始化元数据
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*/
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async initializeMetaData() {
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const metaData = [
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{
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meta_key: 'version',
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meta_value: '1.0.5',
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description: '注册表版本号'
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},
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{
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meta_key: 'storage_type',
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meta_value: 'database',
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description: '存储类型：database 或 json'
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},
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{
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meta_key: 'created_at',
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meta_value: new Date().toISOString(),
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description: '注册表创建时间'
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},
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{
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meta_key: 'last_migration',
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meta_value: new Date().toISOString(),
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description: '最后一次迁移时间'
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}
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];
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for (const meta of metaData) {
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try {
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await this.db.insert('registry_meta', meta);
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} catch (error) {
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// 如果键已存在，忽略错误
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if (!error.message.includes('Duplicate entry')) {
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throw error;
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}
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}
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}
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}
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/**
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* 获取表结构信息
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*/
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getTableInfo() {
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return {
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artists: {
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tableName: 'registry_artists',
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description: '存储艺术家信息',
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fields: {
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id: '主键ID',
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artist_name: '艺术家名称',
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normalized_name: '标准化后的艺术家名称',
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artwork_count: '作品数量',
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created_at: '创建时间',
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updated_at: '更新时间'
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}
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},
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artworks: {
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tableName: 'registry_artworks',
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description: '存储作品信息',
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fields: {
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id: '主键ID',
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artist_id: '艺术家ID（外键）',
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artwork_id: '作品ID',
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artist_name: '艺术家名称（冗余字段）',
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file_path: '文件路径',
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download_date: '下载时间',
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created_at: '创建时间',
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updated_at: '更新时间'
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}
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},
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meta: {
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tableName: 'registry_meta',
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description: '存储注册表元数据',
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fields: {
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id: '主键ID',
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meta_key: '元数据键',
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meta_value: '元数据值',
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description: '描述',
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created_at: '创建时间',
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updated_at: '更新时间'
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}
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}
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};
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}
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/**
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* 检查所有表是否存在
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*/
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async checkTablesExist() {
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const tables = ['registry_artists', 'registry_artworks', 'registry_meta'];
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const results = {};
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for (const table of tables) {
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results[table] = await this.db.tableExists(table);
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}
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return results;
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}
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/**
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* 删除所有注册表相关的表（谨慎使用）
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*/
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async dropAllTables() {
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const tables = ['registry_artworks', 'registry_artists', 'registry_meta'];
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try {
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// 按照外键依赖顺序删除表
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for (const table of tables) {
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if (await this.db.tableExists(table)) {
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await this.db.query(`DROP TABLE ${table}`);
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logger.info(`表 ${table} 已删除`);
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}
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}
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logger.info('所有注册表相关的表已删除');
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return { success: true };
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} catch (error) {
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logger.error('删除注册表表失败:', error);
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throw error;
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}
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}
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}
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module.exports = RegistrySchema;
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