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Ken
354
controllers/categoryController.js
Normal file
354
controllers/categoryController.js
Normal file
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const { Categories, Subject } = require('../models');
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const { cacheUtils } = require('../config/redis');
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/**
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* Categories Controller - Quản lý danh mục
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*/
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class CategoryController {
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/**
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* Get all categories with pagination and caching
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*/
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async getAllCategories(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 = `categories: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 Categories.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: [['category_code', 'ASC']],
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});
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const result = {
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categories: 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 category by ID with caching
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*/
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async getCategoryById(req, res, next) {
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try {
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const { id } = req.params;
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const cacheKey = `category:${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 category = await Categories.findByPk(id);
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if (!category) {
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return res.status(404).json({
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success: false,
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message: 'Category 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, category, 7200); // Cache for 2 hours
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res.json({
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success: true,
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data: category,
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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 category by code with caching
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*/
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async getCategoryByCode(req, res, next) {
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try {
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const { code } = req.params;
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const cacheKey = `category: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 category = await Categories.findOne({
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where: { category_code: code },
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});
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if (!category) {
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return res.status(404).json({
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success: false,
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message: 'Category 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, category, 7200); // Cache for 2 hours
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res.json({
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success: true,
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data: category,
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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 category
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*/
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async createCategory(req, res, next) {
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try {
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const categoryData = req.body;
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const category = await Categories.create(categoryData);
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await cacheUtils.deletePattern('categories:list:*');
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res.status(201).json({
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success: true,
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message: 'Category created successfully',
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data: category,
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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 category
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*/
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async updateCategory(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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const category = await Categories.findByPk(id);
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if (!category) {
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return res.status(404).json({
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success: false,
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message: 'Category not found',
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});
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}
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await category.update(updates);
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await cacheUtils.delete(`category:${id}`);
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await cacheUtils.deletePattern('categories:list:*');
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res.json({
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success: true,
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message: 'Category updated successfully',
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data: category,
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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 category
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*/
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async deleteCategory(req, res, next) {
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try {
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const { id } = req.params;
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const category = await Categories.findByPk(id);
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if (!category) {
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return res.status(404).json({
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success: false,
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message: 'Category not found',
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});
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}
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await category.destroy();
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await cacheUtils.delete(`category:${id}`);
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await cacheUtils.deletePattern('categories:list:*');
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res.json({
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success: true,
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message: 'Category deleted successfully',
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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 categories (frequently used)
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*/
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async getActiveCategories(req, res, next) {
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try {
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const cacheKey = 'categories: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 categories = await Categories.findAll({
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where: { is_active: true },
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order: [['category_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, categories, 14400);
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res.json({
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success: true,
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data: categories,
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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 category datatypes
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*/
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async getCategoryDatatypes(req, res, next) {
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try {
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const datatypes = Categories.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 subjects by category ID
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*/
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async getSubjectsByCategory(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_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 = `category:${id}:subjects:${page}:${limit}:${is_active || '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 category exists
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const category = await Categories.findByPk(id);
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if (!category) {
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return res.status(404).json({
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success: false,
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message: 'Category not found',
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});
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}
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// Build query conditions
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const where = { category_id: id };
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if (is_active !== undefined) where.is_active = is_active === 'true';
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// Query subjects
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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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category: {
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id: category.id,
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category_code: category.category_code,
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category_name: category.category_name,
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},
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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, 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 CategoryController();
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