courses.js

   1 let router = require("express").Router();
   2 const access = require("../utils/access.js");
   3 const validator = require("../public/javascripts/utils/validation");
   4 const sanitizeHtml = require('sanitize-html');
   5 const ObjectId = require("bson-objectid");
   6 const CourseEntity = require("../entities/course");
   7 const CourseModel = require("../models/course");
   8
   9 router.get('/add/course', access.ajax, access.logged, (req,res) => {
  10     let code = req.query["code"];
  11     let description = sanitizeHtml(req.query["description"]);
  12     let error = validator({code:code}, "Course");
  13     if (error.length > 0)
  14         return res.json({errmsg:error});
  15     CourseEntity.insert(req.user._id, code, description, (err,course) => {
  16         access.checkRequest(res, err, course, "Course addition failed", () => {
  17             res.json(course);
  18         });
  19     });
  20 });
  21
  22 router.get("/set/password", access.ajax, access.logged, (req,res) => {
  23     let cid = req.query["cid"];
  24     let pwd = req.query["pwd"];
  25     let error = validator({password:pwd, _id:cid}, "Course");
  26     if (error.length > 0)
  27         return res.json({errmsg:error});
  28     CourseModel.setPassword(req.user._id, ObjectId(cid), pwd, (err,ret) => {
  29         access.checkRequest(res, err, ret, "password update failed", () => {
  30             res.json({});
  31         });
  32     });
  33 });
  34
  35 router.post('/import/students', access.ajax, access.logged, (req,res) => {
  36     let cid = req.body["cid"];
  37     let students = JSON.parse(req.body["students"]);
  38     let error = validator({_id:cid, students: students}, "Course");
  39     if (error.length > 0)
  40         return res.json({errmsg:error});
  41     access.getUser(req, res, (err,user) => {
  42         if (!!err)
  43             return res.json(err);
  44         CourseModel.importStudents(req.user._id, ObjectId(cid), students, (err,ret) => {
  45             access.checkRequest(res, err, ret, "Students addition failed", () => {
  46                 res.json({});
  47             });
  48         });
  49     });
  50 });
  51
  52 router.get('/get/student', access.ajax, (req,res) => {
  53     let number = req.query["number"];
  54     let cid = req.query["cid"];
  55     let error = validator({ _id: cid, students: [{number:number}] }, "Course");
  56     if (error.length > 0)
  57         return res.json({errmsg:error});
  58     CourseEntity.getStudent(ObjectId(cid), number, (err,ret) => {
  59         access.checkRequest(res, err, ret, "Failed retrieving student", () => {
  60             res.json({student: ret.students[0]});
  61         });
  62     });
  63 });
  64
  65 router.get('/remove/course', access.ajax, access.logged, (req,res) => {
  66     let cid = req.query["cid"];
  67     let error = validator({_id:cid}, "Course");
  68     if (error.length > 0)
  69         return res.json({errmsg:error});
  70     CourseModel.remove(req.user._id, ObjectId(cid), (err,ret) => {
  71         access.checkRequest(res, err, ret, "Course removal failed", () => {
  72             res.json({});
  73         });
  74     });
  75 });
  76
  77 // TODO: grading page (for at least partially open-questions exams)
  78
  79 module.exports = router;