116 lines
3.0 KiB
JavaScript
116 lines
3.0 KiB
JavaScript
'use strict'
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const express = require('express')
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let router = express.Router()
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const connection = require('../database/connection')
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const db = connection.db
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// Model validation
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const Validator = require('jsonschema').Validator
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const v = new Validator()
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const School = require("../models/School")
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v.addSchema(School, "/SchoolModel")
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const getSchools = () => {
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let getSchoolsPromise = new Promise((resolve, reject) => {
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let query = "SELECT DISTINCT * FROM school"
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db.query(query, async (err, result) => {
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if (err) return reject
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if (result.length == 0) { console.log("No school found in database") }
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// Loops over the results to fetch the associated tables
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for (let i = 0; i < result.length; i++) {
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result[i] = await buildSchool(result[i])
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}
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resolve(result)
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})
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})
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return getSchoolsPromise
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}
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const getSchool = (id) => {
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let getSchoolPromise = new Promise((resolve, reject) => {
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let query = "SELECT * FROM school WHERE id = " + db.escapeId(id)
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db.query(query, async (err, result) => {
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if (err) return reject
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result = await buildSchool(result[0])
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resolve(result);
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})
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})
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return getSchoolPromise
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}
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// ROUTES
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// Get All
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router.get('/', async (req, res, next) => {
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getSchools()
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.then(v => {
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res.setHeader('Content-Type', 'application/json;charset=utf-8')
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res.end(JSON.stringify(v))
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})
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.catch(err => {
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console.log(err)
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next()
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})
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})
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// Get One
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router.get('/:id/', async (req, res, next) => {
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getSchool(req.params.id)
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.then(v => {
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res.setHeader('Content-Type', 'application/json;charset=utf-8')
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res.end(JSON.stringify(v))
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})
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.catch(err => {
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console.log(err)
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next()
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})
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})
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// Param validation for single school
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// (check if id is int) (could be refactored)
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router.param('id', (req, res, next, id) => {
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const regex = RegExp(/^[1-9]\d*$/);
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try {
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if (regex.test(id)) {
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next()
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} else {
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let err = {
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name: "InvalidParameterException",
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description: "The parameter is not valid. It should be an integer."
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}
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throw err
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}
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} catch (err) {
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res.status(403).send(err)
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}
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})
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// SHARED FUNCTIONS
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// Builds the associated infos for a given school object
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const buildSchool = async (school) => {
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// Fetches the school's parent school
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let fetchMetaSchoolData = new Promise((resolve, reject) => {
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let query =
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"SELECT ms.id, ms.name " +
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"FROM meta_school AS ms " +
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"WHERE ms.id = " + db.escapeId(school.id_meta_school)
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db.query(query, (err, result) => {
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if (err) return reject
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resolve(result)
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})
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})
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// Builds the school and returns it
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school.meta_school = await fetchMetaSchoolData
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return school
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}
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module.exports = router |