Backbone JS Models and Collection URLs

Question

If I have a model named \"Book\" and a collection named \"Library\" defined as below:

Book

app.Book = Backbone.Model.extend({
    defaults: {
        tit         


        

Answer 1

In model

1. urlRoot is used for the Model.
2. url is used for the instance of the Model.

So if urlRoot exists then book.fetch() will fetch the data given id, for example

var Book = Backbone.Model.extend({urlRoot: 'books' });
var book = new Book({id: 1});
book.fetch();  // will get /books/1

var Book = Backbone.Model.extend({});
var book = new Book({url: 'books/1'});
book.fetch();  // will get /books/1


var Books = Backbone.Collection.extend({model: Book});
var books = new Books({ /*....*/ });
books.fetch(); // will get /books/ 

You can refer the backbone Model urlRoot source code here

I hope it makes sense to you, good luck.