93 lines
2.6 KiB
JavaScript
93 lines
2.6 KiB
JavaScript
const mysql = require('mysql2/promise');
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// 資料庫連接配置
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const dbConfig = {
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host: 'mysql.theaken.com',
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port: 33306,
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user: 'AI_Platform',
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password: 'Aa123456',
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database: 'db_AI_Platform',
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charset: 'utf8mb4'
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};
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async function fixFavoritesDuplicates() {
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let connection;
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try {
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console.log('連接到資料庫...');
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connection = await mysql.createConnection(dbConfig);
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console.log('檢查重複的收藏記錄...');
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// 查找重複記錄
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const [duplicates] = await connection.execute(`
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SELECT user_id, app_id, COUNT(*) as count
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FROM user_favorites
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GROUP BY user_id, app_id
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HAVING COUNT(*) > 1
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`);
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if (duplicates.length === 0) {
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console.log('沒有發現重複的收藏記錄');
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return;
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}
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console.log(`發現 ${duplicates.length} 組重複記錄:`);
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for (const duplicate of duplicates) {
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console.log(`用戶 ${duplicate.user_id} 對應用 ${duplicate.app_id} 有 ${duplicate.count} 條記錄`);
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// 保留最早的記錄，刪除其他重複記錄
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const [records] = await connection.execute(`
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SELECT id, created_at
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FROM user_favorites
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WHERE user_id = ? AND app_id = ?
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ORDER BY created_at ASC
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`, [duplicate.user_id, duplicate.app_id]);
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if (records.length > 1) {
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// 保留第一條記錄，刪除其他記錄
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const keepRecord = records[0];
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const deleteIds = records.slice(1).map(r => r.id);
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console.log(`保留記錄 ID: ${keepRecord.id} (創建時間: ${keepRecord.created_at})`);
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console.log(`刪除記錄 IDs: ${deleteIds.join(', ')}`);
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await connection.execute(`
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DELETE FROM user_favorites
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WHERE id IN (${deleteIds.map(() => '?').join(',')})
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`, deleteIds);
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console.log(`已清理 ${deleteIds.length} 條重複記錄`);
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}
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}
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console.log('重複記錄清理完成！');
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// 驗證修復結果
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const [remainingDuplicates] = await connection.execute(`
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SELECT user_id, app_id, COUNT(*) as count
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FROM user_favorites
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GROUP BY user_id, app_id
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HAVING COUNT(*) > 1
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`);
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if (remainingDuplicates.length === 0) {
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console.log('✅ 所有重複記錄已成功清理');
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} else {
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console.log('❌ 仍有重複記錄存在:', remainingDuplicates);
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}
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} catch (error) {
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console.error('修復過程中發生錯誤:', error);
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} finally {
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if (connection) {
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await connection.end();
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console.log('資料庫連接已關閉');
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}
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}
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}
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// 執行修復
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fixFavoritesDuplicates().catch(console.error);
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