update
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Ken
343
controllers/subjectController.js
Normal file
343
controllers/subjectController.js
Normal file
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const { Subject, Chapter } = require('../models');
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const { cacheUtils } = require('../config/redis');
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const { addDatabaseWriteJob } = require('../config/bullmq');
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/**
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* Subject Controller - Quản lý môn học
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*/
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class SubjectController {
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/**
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* Get all subjects with pagination and caching
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*/
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async getAllSubjects(req, res, next) {
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try {
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const { page = 1, limit = 50, is_active } = req.query;
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const offset = (page - 1) * limit;
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// Generate cache key
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const cacheKey = `subjects:list:${page}:${limit}:${is_active || 'all'}`;
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// Try to get from cache first
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const cached = await cacheUtils.get(cacheKey);
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if (cached) {
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return res.json({
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success: true,
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data: cached,
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cached: true,
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});
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}
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// Build query conditions
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const where = {};
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if (is_active !== undefined) where.is_active = is_active === 'true';
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// Query from database (through ProxySQL)
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const { count, rows } = await Subject.findAndCountAll({
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where,
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limit: parseInt(limit),
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offset: parseInt(offset),
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order: [['subject_code', 'ASC']],
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});
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const result = {
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subjects: rows,
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pagination: {
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total: count,
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page: parseInt(page),
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limit: parseInt(limit),
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totalPages: Math.ceil(count / limit),
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},
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};
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// Cache the result
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await cacheUtils.set(cacheKey, result, 7200); // Cache for 2 hours
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res.json({
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success: true,
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data: result,
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cached: false,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Get subject by ID with caching
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*/
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async getSubjectById(req, res, next) {
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try {
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const { id } = req.params;
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const cacheKey = `subject:${id}`;
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// Try cache first
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const cached = await cacheUtils.get(cacheKey);
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if (cached) {
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return res.json({
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success: true,
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data: cached,
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cached: true,
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});
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}
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// Query from database
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const subject = await Subject.findByPk(id);
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if (!subject) {
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return res.status(404).json({
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success: false,
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message: 'Subject not found',
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});
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}
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// Cache the result
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await cacheUtils.set(cacheKey, subject, 7200); // Cache for 2 hours
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res.json({
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success: true,
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data: subject,
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cached: false,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Get subject by code with caching
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*/
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async getSubjectByCode(req, res, next) {
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try {
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const { code } = req.params;
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const cacheKey = `subject:code:${code}`;
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// Try cache first
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const cached = await cacheUtils.get(cacheKey);
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if (cached) {
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return res.json({
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success: true,
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data: cached,
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cached: true,
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});
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}
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// Query from database
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const subject = await Subject.findOne({
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where: { subject_code: code },
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});
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if (!subject) {
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return res.status(404).json({
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success: false,
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message: 'Subject not found',
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});
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}
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// Cache the result
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await cacheUtils.set(cacheKey, subject, 7200); // Cache for 2 hours
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res.json({
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success: true,
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data: subject,
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cached: false,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Create new subject (async via BullMQ)
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*/
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async createSubject(req, res, next) {
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try {
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const subjectData = req.body;
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// Add to job queue for async processing
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const job = await addDatabaseWriteJob('create', 'Subject', subjectData);
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// Note: Cache will be invalidated by worker after successful creation
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res.status(202).json({
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success: true,
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message: 'Subject creation job queued',
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jobId: job.id,
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data: subjectData,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Update subject (async via BullMQ)
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*/
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async updateSubject(req, res, next) {
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try {
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const { id } = req.params;
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const updates = req.body;
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// Add to job queue for async processing
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const job = await addDatabaseWriteJob('update', 'Subject', {
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id,
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updates,
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});
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// Note: Cache will be invalidated by worker after successful update
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res.status(202).json({
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success: true,
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message: 'Subject update job queued',
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jobId: job.id,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Delete subject (async via BullMQ)
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*/
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async deleteSubject(req, res, next) {
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try {
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const { id } = req.params;
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// Add to job queue for async processing
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const job = await addDatabaseWriteJob('delete', 'Subject', { id });
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// Note: Cache will be invalidated by worker after successful deletion
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res.status(202).json({
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success: true,
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message: 'Subject deletion job queued',
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jobId: job.id,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Get active subjects (frequently used)
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*/
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async getActiveSubjects(req, res, next) {
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try {
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const cacheKey = 'subjects:active';
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// Try cache first
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const cached = await cacheUtils.get(cacheKey);
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if (cached) {
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return res.json({
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success: true,
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data: cached,
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cached: true,
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});
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}
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// Query from database
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const subjects = await Subject.findAll({
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where: { is_active: true },
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order: [['subject_code', 'ASC']],
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});
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// Cache for 4 hours (this data changes infrequently)
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await cacheUtils.set(cacheKey, subjects, 14400);
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res.json({
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success: true,
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data: subjects,
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cached: false,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Get subject datatypes
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*/
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async getSubjectDatatypes(req, res, next) {
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try {
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const datatypes = Subject.rawAttributes;
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res.json({
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success: true,
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data: datatypes,
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});
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} catch (error) {
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next(error);
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}
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}
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/**
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* Get chapters by subject ID
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*/
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async getChaptersBySubject(req, res, next) {
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try {
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const { id } = req.params;
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const { page = 1, limit = 50, is_published } = req.query;
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const offset = (page - 1) * limit;
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// Generate cache key
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const cacheKey = `subject:${id}:chapters:${page}:${limit}:${is_published || 'all'}`;
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// Try cache first
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const cached = await cacheUtils.get(cacheKey);
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if (cached) {
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return res.json({
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success: true,
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data: cached,
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cached: true,
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});
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}
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// Check if subject exists
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const subject = await Subject.findByPk(id);
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if (!subject) {
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return res.status(404).json({
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success: false,
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message: 'Subject not found',
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});
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}
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// Build query conditions
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const where = { subject_id: id };
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if (is_published !== undefined) where.is_published = is_published === 'true';
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// Query chapters
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const { count, rows } = await Chapter.findAndCountAll({
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where,
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limit: parseInt(limit),
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offset: parseInt(offset),
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order: [['display_order', 'ASC'], ['chapter_number', 'ASC']],
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});
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const result = {
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subject: {
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id: subject.id,
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subject_code: subject.subject_code,
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subject_name: subject.subject_name,
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},
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chapters: rows,
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pagination: {
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total: count,
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page: parseInt(page),
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limit: parseInt(limit),
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totalPages: Math.ceil(count / limit),
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},
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};
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// Cache the result
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await cacheUtils.set(cacheKey, result, 3600); // Cache for 1 hour
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res.json({
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success: true,
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data: result,
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cached: false,
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});
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} catch (error) {
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next(error);
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}
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}
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}
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module.exports = new SubjectController();
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