The code below was extracted

from the class.

Knowing that you have the

following project hierarchy.

Analyze the code below and

choose only the correct answers

File: server\app\controllers\product.controller.js

1. const db = require('../models')
2. const Product = db.products
3. const Op = db.Sequelize.Op
5. exports.update = (req, res) => {
6.     const id = req.params.id;
7.     Product.update(req.body, {
8.       where: { id: id }
9.     })
10.       .then(num => {
11.         if (num == 1) {
12.           res.send({
13.             message: 'Product was updated successfully.'
14.           });
15.         } else {
16.           res.send({
17.             message: `Cannot update product with id=${id}. Maybe product was not found or is empty!`
18.           });
19.         }
20.       })
21.       .catch(err => {
22.         res.status(500).send({
23.           message: `Error updating Product with id=${id}`
24.         })
25.       })  
26.   }