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[Feat] Implement collaboration migration and service for shared content management
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‎Backend/run_collaboration_migration.js‎

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const mysql = require('mysql2/promise');
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const fs = require('fs');
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const path = require('path');
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require('dotenv').config();
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async function runCollaborationMigration() {
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let connection;
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try {
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console.log('[LOG collaboration_migration] ========= Starting collaboration tables migration');
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// Create connection
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connection = await mysql.createConnection({
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host: process.env.DB_HOST || 'localhost',
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user: process.env.DB_USER || 'root',
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password: process.env.DB_PASSWORD || 'root',
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database: process.env.DB_NAME || 'unihub_db',
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multipleStatements: true
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});
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console.log('[LOG collaboration_migration] ========= Connected to database');
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// Check if users table exists
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const [tables] = await connection.execute("SHOW TABLES LIKE 'users'");
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if (tables.length === 0) {
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throw new Error('Users table does not exist. Please run basic migrations first.');
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}
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// Get detailed information about users table
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const [createTable] = await connection.execute("SHOW CREATE TABLE users");
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console.log('[LOG collaboration_migration] ========= Users table structure:');
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console.log(createTable[0]['Create Table']);
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// Try to create tables without foreign keys first
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console.log('[LOG collaboration_migration] ========= Creating tables without foreign keys...');
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const createTablesSQL = `
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-- Create shared_content table without foreign keys
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CREATE TABLE IF NOT EXISTS shared_content (
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id CHAR(36) PRIMARY KEY DEFAULT (UUID()),
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user_id CHAR(36) NOT NULL,
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content_type ENUM('topic', 'quiz') NOT NULL,
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content_url VARCHAR(500) NOT NULL,
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title VARCHAR(255) NOT NULL,
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description TEXT,
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tags JSON,
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likes_count INT DEFAULT 0,
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comments_count INT DEFAULT 0,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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INDEX idx_user_id (user_id),
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INDEX idx_content_type (content_type),
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INDEX idx_created_at (created_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
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-- Create shared_content_likes table without foreign keys
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CREATE TABLE IF NOT EXISTS shared_content_likes (
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id CHAR(36) PRIMARY KEY DEFAULT (UUID()),
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shared_content_id CHAR(36) NOT NULL,
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user_id CHAR(36) NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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UNIQUE KEY unique_user_content (shared_content_id, user_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
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-- Create shared_content_comments table without foreign keys
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CREATE TABLE IF NOT EXISTS shared_content_comments (
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id CHAR(36) PRIMARY KEY DEFAULT (UUID()),
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shared_content_id CHAR(36) NOT NULL,
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user_id CHAR(36) NOT NULL,
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comment TEXT NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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INDEX idx_shared_content_id (shared_content_id),
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INDEX idx_user_id (user_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
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`;
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await connection.query(createTablesSQL);
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console.log('[LOG collaboration_migration] ========= Tables created successfully without foreign keys');
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// Now try to add foreign keys one by one
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console.log('[LOG collaboration_migration] ========= Adding foreign key constraints...');
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try {
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await connection.execute(`
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ALTER TABLE shared_content
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ADD CONSTRAINT fk_shared_content_user
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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`);
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console.log('[LOG collaboration_migration] ========= Added foreign key for shared_content.user_id');
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Failed to add shared_content foreign key:', error.message);
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}
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try {
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await connection.execute(`
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ALTER TABLE shared_content_likes
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ADD CONSTRAINT fk_shared_content_likes_content
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FOREIGN KEY (shared_content_id) REFERENCES shared_content(id) ON DELETE CASCADE
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`);
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console.log('[LOG collaboration_migration] ========= Added foreign key for shared_content_likes.shared_content_id');
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Failed to add shared_content_likes content foreign key:', error.message);
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}
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try {
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await connection.execute(`
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ALTER TABLE shared_content_likes
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ADD CONSTRAINT fk_shared_content_likes_user
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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`);
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console.log('[LOG collaboration_migration] ========= Added foreign key for shared_content_likes.user_id');
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Failed to add shared_content_likes user foreign key:', error.message);
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}
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try {
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await connection.execute(`
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ALTER TABLE shared_content_comments
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ADD CONSTRAINT fk_shared_content_comments_content
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FOREIGN KEY (shared_content_id) REFERENCES shared_content(id) ON DELETE CASCADE
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`);
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console.log('[LOG collaboration_migration] ========= Added foreign key for shared_content_comments.shared_content_id');
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Failed to add shared_content_comments content foreign key:', error.message);
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}
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try {
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await connection.execute(`
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ALTER TABLE shared_content_comments
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ADD CONSTRAINT fk_shared_content_comments_user
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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`);
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console.log('[LOG collaboration_migration] ========= Added foreign key for shared_content_comments.user_id');
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Failed to add shared_content_comments user foreign key:', error.message);
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}
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// Verify tables were created
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const [newTables] = await connection.execute("SHOW TABLES LIKE 'shared_content%'");
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console.log('[LOG collaboration_migration] ========= Created tables:', newTables.map(t => Object.values(t)[0]));
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} catch (error) {
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console.error('[LOG collaboration_migration] ========= Migration failed:', error.message);
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throw error;
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} finally {
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if (connection) {
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await connection.end();
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}
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}
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}
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// Run if called directly
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if (require.main === module) {
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runCollaborationMigration()
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.then(() => {
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console.log('[LOG collaboration_migration] ========= Migration completed successfully!');
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process.exit(0);
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})
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.catch((error) => {
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console.error('[LOG collaboration_migration] ========= Migration failed:', error);
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process.exit(1);
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});
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}
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module.exports = { runCollaborationMigration };

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