Use the following directions

• git clone this repo
• npm run setup
• npm run start

Take a few minustes to review the application.

Let's make a models file. This file will store all of our model definitions. Later we will have to separate this into multiple files.

touch models.js

And let's define our Todo model inside of it.

var mongoose = require("mongoose");
mongoose.connect("mongodb://localhost/todos_app");

However these three lines assume we already have mongoose already installed. We should install it before we forget. It's hard to remember what you need to install before you need it, but once you realize you do, then you should take that opportunity to do it.

npm install --save mongoose

Great! We can now define our Todo Schema.

var mongoose = require("mongoose");
mongoose.connect("mongodb://localhost/todos_app");

var todoSchema = new mongoose.Schema({
  title: {
    type: String,
    default: ""
  },
  description: {
    type: String,
    default: ""
  },
  completed: {
    type: Boolean,
    default: false
  }
});

var Todo = mongoose.model("Todo", todoSchema);

module.exports.Todo = Todo;

Note that the last step will allow us to interact with the Todo model when we require this file later. Let's see that this works.

Go into the node repl.

var db = require("./models");

db.Todo.create({
  title: "DO LAUNDRY",
  description: "Two loads!"
}, function (err, todo) {
  console.log("TODO CREATED");
  console.log(todo);
});

It can be hard to do this every time you go into Node, so I make a little console.js file that does this for me.

console.js

var REPL = require("repl");
var db = require("./models");

varrepl = REPL.start("Todo > ");
repl.context.db = db;

repl.on("exit", function () {
  console.log("GOODBYE!!");
  process.exit();
});

We can then run this using

node console.js

Let's add our models.js file to our application, index.js.

var db = require("./models");

Then let's refactor GET /todos

app.get("/todos", function (req, res) {
  db.Todo.find({},
    function (err, todos) {
      res.send(todos);
    });
});

Then go to localhost:3000 to verify this is working.

Let's now refactor our POST /todos.

app.post("/todos", function (req, res) {
  db.Todo.create(req.body.todo, 
    function (err, todo) {
      res.send(201, todo);
    });
});

Let refactor the delete method

app.delete("/todos/:id", function (req, res) {
  db.Todo.findAndRemove({
    _id: req.params.id
  }, function (err, todo) {
    res.send(204) // success No Content
  });
});

Delete the old todos array. It's not needed. :D

• Go through all the public/javascripts/app.js code and change everywhere you see index to _id. Good luck! Yikes!!!!