Added controller for Product CRUD operations

controllers/products.js

@@ -0,0 +1,91 @@
+/**
+ * A very simple product editor
+ */
+'use strict';
+var Product = require('../models/productModel');
+
+module.exports = function (server) {
+
+ /**
+ * Retrieve a list of all products for editing.
+ */
+ server.get('/products', function (req, res) {
+
+ Product.find(function (err, prods) {
+ if (err) {
+ console.log(err);
+ }
+
+ var model =
+ {
+ products: prods
+ };
+ res.render('products', model);
+ });
+
+ });
+
+
+ /**
+ * Add a new product to the database.
+ * **** PLEASE READ THE COMMENT BELOW! ****
+ */
+ server.post('/products', function (req, res) {
+ var name = req.body.name && req.body.name.trim();
+
+ //***** PLEASE READ THIS COMMENT ******\\\
+ /*
+ Using floating point numbers to represent currency is a *BAD* idea \\
+
+ You should be using arbitrary precision libraries like:
+ https://github.com/justmoon/node-bignum instead.
+
+ So why am I not using it here? At the time of this writing, bignum is tricky to install
+ on Windows-based systems. I opted to make this example accessible to more people, instead
+ of making it mathematically correct.
+
+ I would strongly advise against using this code in production.
+ You've been warned!
+ */
+ var price = parseFloat(req.body.price, 10);
+
+ //Some very lightweight input checking
+ if (name === '' || isNaN(price)) {
+ res.redirect('/products#BadInput');
+ return;
+ }
+
+ var newProduct = new Product({name: name, price: price});
+
+ //Show it in console for educational purposes...
+ newProduct.whatAmI();
+
+ newProduct.save();
+
+ res.redirect('/products');
+ });
+
+ /**
+ * Delete a product.
+ * @paaram: req.body.item_id Is the unique id of the product to remove.
+ */
+ server.delete('/products', function (req, res) {
+ Product.remove({_id: req.body.item_id}, function (err) {
+ if (err) {
+ console.log('Remove error: ', err);
+ }
+ res.redirect('/products');
+ });
+ });
+
+
+ /**
+ * Edit a product.
+ * Not implemented here
+ */
+ server.put('/products', function (req, res) {
+ console.log('PUT received. Ignoring.');
+ res.redirect('/products');
+ });
+
+};