新增 競賽建立、評審建立、團隊建立
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382
lib/database-sync-fixed.js
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382
lib/database-sync-fixed.js
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// =====================================================
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// 修復的資料庫雙寫同步機制 (JavaScript 版本)
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// 確保主機和備機使用各自的 ID 序列
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// =====================================================
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const mysql = require('mysql2/promise');
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class DatabaseSyncFixed {
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constructor() {
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this.masterPool = null;
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this.slavePool = null;
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this.initializePools();
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}
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// 初始化連接池
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initializePools() {
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try {
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// 主機連接池
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this.masterPool = mysql.createPool({
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host: process.env.DB_HOST || 'mysql.theaken.com',
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port: parseInt(process.env.DB_PORT || '33306'),
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user: process.env.DB_USER || 'AI_Platform',
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password: process.env.DB_PASSWORD || 'Aa123456',
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database: process.env.DB_NAME || 'db_AI_Platform',
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charset: 'utf8mb4',
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connectionLimit: 10
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});
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// 備機連接池
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this.slavePool = mysql.createPool({
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host: process.env.SLAVE_DB_HOST || '122.100.99.161',
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port: parseInt(process.env.SLAVE_DB_PORT || '43306'),
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user: process.env.SLAVE_DB_USER || 'A999',
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password: process.env.SLAVE_DB_PASSWORD || '1023',
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database: process.env.SLAVE_DB_NAME || 'db_AI_Platform',
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charset: 'utf8mb4',
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connectionLimit: 10
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});
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console.log('✅ 修復的雙寫連接池初始化成功');
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} catch (error) {
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console.error('❌ 修復的雙寫連接池初始化失敗:', error);
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}
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}
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// 智能雙寫插入 - 每個資料庫使用自己的 ID
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async smartDualInsert(tableName, data) {
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const result = {
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success: false,
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masterSuccess: false,
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slaveSuccess: false
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};
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try {
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// 同時寫入主機和備機,各自生成 ID
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const masterPromise = this.insertToMaster(tableName, data);
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const slavePromise = this.insertToSlave(tableName, data);
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const [masterResult, slaveResult] = await Promise.allSettled([masterPromise, slavePromise]);
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result.masterSuccess = masterResult.status === 'fulfilled';
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result.slaveSuccess = slaveResult.status === 'fulfilled';
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result.success = result.masterSuccess || result.slaveSuccess;
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if (masterResult.status === 'fulfilled') {
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result.masterId = masterResult.value;
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} else {
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result.masterError = masterResult.reason instanceof Error ? masterResult.reason.message : '主機寫入失敗';
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}
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if (slaveResult.status === 'fulfilled') {
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result.slaveId = slaveResult.value;
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} else {
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result.slaveError = slaveResult.reason instanceof Error ? slaveResult.reason.message : '備機寫入失敗';
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}
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console.log(`📝 智能雙寫結果: 主機${result.masterSuccess ? '✅' : '❌'} 備機${result.slaveSuccess ? '✅' : '❌'}`);
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} catch (error) {
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result.masterError = error instanceof Error ? error.message : '智能雙寫執行失敗';
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}
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return result;
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}
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// 寫入主機 - 使用主機的 ID 生成
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async insertToMaster(tableName, data) {
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if (!this.masterPool) {
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throw new Error('主機連接池不可用');
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}
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const connection = await this.masterPool.getConnection();
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try {
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// 生成主機的 UUID
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const [uuidResult] = await connection.execute('SELECT UUID() as id');
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const masterId = uuidResult[0].id;
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// 構建插入 SQL
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const columns = Object.keys(data).join(', ');
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const placeholders = Object.keys(data).map(() => '?').join(', ');
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const values = Object.values(data);
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const sql = `INSERT INTO ${tableName} (id, ${columns}) VALUES (?, ${placeholders})`;
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await connection.execute(sql, [masterId, ...values]);
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console.log(`✅ 主機寫入成功: ${masterId}`);
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return masterId;
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} finally {
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connection.release();
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}
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}
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// 寫入備機 - 使用備機的 ID 生成
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async insertToSlave(tableName, data) {
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if (!this.slavePool) {
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throw new Error('備機連接池不可用');
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}
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const connection = await this.slavePool.getConnection();
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try {
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// 生成備機的 UUID
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const [uuidResult] = await connection.execute('SELECT UUID() as id');
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const slaveId = uuidResult[0].id;
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// 構建插入 SQL
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const columns = Object.keys(data).join(', ');
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const placeholders = Object.keys(data).map(() => '?').join(', ');
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const values = Object.values(data);
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const sql = `INSERT INTO ${tableName} (id, ${columns}) VALUES (?, ${placeholders})`;
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await connection.execute(sql, [slaveId, ...values]);
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console.log(`✅ 備機寫入成功: ${slaveId}`);
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return slaveId;
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} finally {
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connection.release();
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}
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}
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// 智能雙寫關聯表 - 使用對應的競賽 ID
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async smartDualInsertRelation(relationTable, masterCompetitionId, slaveCompetitionId, relationData, relationIdField) {
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const result = {
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success: false,
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masterSuccess: false,
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slaveSuccess: false
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};
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try {
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console.log(`🔍 關聯雙寫開始: ${relationTable}`);
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console.log(` 主機競賽 ID: ${masterCompetitionId}`);
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console.log(` 備機競賽 ID: ${slaveCompetitionId}`);
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console.log(` 關聯數據數量: ${relationData.length}`);
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// 先驗證競賽 ID 是否存在
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const masterExists = await this.verifyCompetitionExists(masterCompetitionId, 'master');
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const slaveExists = await this.verifyCompetitionExists(slaveCompetitionId, 'slave');
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console.log(` 主機競賽存在: ${masterExists}`);
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console.log(` 備機競賽存在: ${slaveExists}`);
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if (!masterExists) {
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result.masterError = '主機競賽不存在';
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result.slaveError = '主機競賽不存在,跳過備機寫入';
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console.log(`📝 關聯雙寫結果: 主機❌ 備機❌`);
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return result;
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}
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if (!slaveExists) {
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result.masterError = '備機競賽不存在';
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result.slaveError = '備機競賽不存在';
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console.log(`📝 關聯雙寫結果: 主機❌ 備機❌`);
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return result;
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}
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// 同時寫入關聯數據
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const masterPromise = this.insertRelationsToMaster(relationTable, masterCompetitionId, relationData, relationIdField);
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const slavePromise = this.insertRelationsToSlave(relationTable, slaveCompetitionId, relationData, relationIdField);
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const [masterResult, slaveResult] = await Promise.allSettled([masterPromise, slavePromise]);
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result.masterSuccess = masterResult.status === 'fulfilled';
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result.slaveSuccess = slaveResult.status === 'fulfilled';
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result.success = result.masterSuccess || result.slaveSuccess;
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if (masterResult.status === 'rejected') {
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result.masterError = masterResult.reason instanceof Error ? masterResult.reason.message : '主機關聯寫入失敗';
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}
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if (slaveResult.status === 'rejected') {
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result.slaveError = slaveResult.reason instanceof Error ? slaveResult.reason.message : '備機關聯寫入失敗';
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}
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console.log(`📝 關聯雙寫結果: 主機${result.masterSuccess ? '✅' : '❌'} 備機${result.slaveSuccess ? '✅' : '❌'}`);
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} catch (error) {
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result.masterError = error instanceof Error ? error.message : '關聯雙寫執行失敗';
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}
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return result;
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}
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// 驗證競賽是否存在
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async verifyCompetitionExists(competitionId, database) {
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try {
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const pool = database === 'master' ? this.masterPool : this.slavePool;
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if (!pool) return false;
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const connection = await pool.getConnection();
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try {
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const [rows] = await connection.execute('SELECT COUNT(*) as count FROM competitions WHERE id = ?', [competitionId]);
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return rows[0].count > 0;
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} finally {
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connection.release();
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}
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} catch (error) {
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console.error(`驗證${database}競賽存在失敗:`, error.message);
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return false;
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}
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}
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// 獲取備機的評審 ID(通過名稱匹配)
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async getSlaveJudgeId(masterJudgeId) {
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try {
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if (!this.slavePool) return masterJudgeId;
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const connection = await this.slavePool.getConnection();
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try {
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// 先獲取主機評審的名稱
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const masterConn = await this.masterPool.getConnection();
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const [masterJudge] = await masterConn.execute('SELECT name FROM judges WHERE id = ?', [masterJudgeId]);
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masterConn.release();
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if (masterJudge.length === 0) return masterJudgeId;
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// 在備機中查找相同名稱的評審
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const [slaveJudges] = await connection.execute('SELECT id FROM judges WHERE name = ? ORDER BY created_at ASC LIMIT 1', [masterJudge[0].name]);
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return slaveJudges.length > 0 ? slaveJudges[0].id : masterJudgeId;
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} finally {
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connection.release();
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}
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} catch (error) {
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console.error('獲取備機評審 ID 失敗:', error);
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return masterJudgeId;
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}
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}
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// 獲取備機的團隊 ID(通過名稱匹配)
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async getSlaveTeamId(masterTeamId) {
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try {
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if (!this.slavePool) return masterTeamId;
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const connection = await this.slavePool.getConnection();
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try {
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// 先獲取主機團隊的名稱
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const masterConn = await this.masterPool.getConnection();
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const [masterTeam] = await masterConn.execute('SELECT name FROM teams WHERE id = ?', [masterTeamId]);
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masterConn.release();
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if (masterTeam.length === 0) return masterTeamId;
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// 在備機中查找相同名稱的團隊
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const [slaveTeams] = await connection.execute('SELECT id FROM teams WHERE name = ? ORDER BY created_at ASC LIMIT 1', [masterTeam[0].name]);
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return slaveTeams.length > 0 ? slaveTeams[0].id : masterTeamId;
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} finally {
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connection.release();
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}
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} catch (error) {
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console.error('獲取備機團隊 ID 失敗:', error);
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return masterTeamId;
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}
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}
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// 寫入主機關聯表
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async insertRelationsToMaster(relationTable, competitionId, relationData, relationIdField) {
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if (!this.masterPool) return;
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const connection = await this.masterPool.getConnection();
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try {
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for (const data of relationData) {
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const [uuidResult] = await connection.execute('SELECT UUID() as id');
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const relationId = uuidResult[0].id;
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if (relationTable === 'competition_award_types') {
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// 特殊處理獎項類型
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const sql = `INSERT INTO ${relationTable} (id, competition_id, name, description, icon, color, order_index) VALUES (?, ?, ?, ?, ?, ?, ?)`;
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await connection.execute(sql, [
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relationId,
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competitionId,
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data.name,
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data.description || '',
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data.icon || '🏆',
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data.color || 'text-yellow-600',
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data.order_index || 0
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]);
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} else if (relationTable === 'competition_rules') {
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// 特殊處理評分規則
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const sql = `INSERT INTO ${relationTable} (id, competition_id, name, description, weight, order_index) VALUES (?, ?, ?, ?, ?, ?)`;
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await connection.execute(sql, [
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relationId,
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competitionId,
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data.name,
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data.description || '',
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data.weight || 0,
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data.order_index || 0
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]);
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} else {
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// 一般關聯表
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const sql = `INSERT INTO ${relationTable} (id, competition_id, ${relationIdField}) VALUES (?, ?, ?)`;
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await connection.execute(sql, [relationId, competitionId, data[relationIdField]]);
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}
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}
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} finally {
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connection.release();
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}
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}
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// 寫入備機關聯表
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async insertRelationsToSlave(relationTable, competitionId, relationData, relationIdField) {
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if (!this.slavePool) return;
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const connection = await this.slavePool.getConnection();
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try {
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for (const data of relationData) {
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const [uuidResult] = await connection.execute('SELECT UUID() as id');
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const relationId = uuidResult[0].id;
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if (relationTable === 'competition_award_types') {
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// 特殊處理獎項類型
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const sql = `INSERT INTO ${relationTable} (id, competition_id, name, description, icon, color, order_index) VALUES (?, ?, ?, ?, ?, ?, ?)`;
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await connection.execute(sql, [
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relationId,
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competitionId,
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data.name,
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data.description || '',
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data.icon || '🏆',
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data.color || 'text-yellow-600',
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data.order_index || 0
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]);
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} else if (relationTable === 'competition_rules') {
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// 特殊處理評分規則
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const sql = `INSERT INTO ${relationTable} (id, competition_id, name, description, weight, order_index) VALUES (?, ?, ?, ?, ?, ?)`;
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await connection.execute(sql, [
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relationId,
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competitionId,
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data.name,
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data.description || '',
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data.weight || 0,
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data.order_index || 0
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]);
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} else {
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// 一般關聯表 - 處理 ID 映射
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let slaveId = data[relationIdField];
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if (relationTable === 'competition_judges' && relationIdField === 'judge_id') {
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slaveId = await this.getSlaveJudgeId(data[relationIdField]);
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} else if (relationTable === 'competition_teams' && relationIdField === 'team_id') {
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slaveId = await this.getSlaveTeamId(data[relationIdField]);
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}
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const sql = `INSERT INTO ${relationTable} (id, competition_id, ${relationIdField}) VALUES (?, ?, ?)`;
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await connection.execute(sql, [relationId, competitionId, slaveId]);
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}
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}
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} finally {
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connection.release();
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}
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}
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// 清理資源
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async close() {
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if (this.masterPool) {
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await this.masterPool.end();
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}
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if (this.slavePool) {
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await this.slavePool.end();
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}
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}
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}
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// 導出實例
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module.exports = { DatabaseSyncFixed };
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Reference in New Issue
Block a user