In Backbone.js I can appoint where the model fetches it's data:
var Book = Backbone.Model.extend({urlRoot : '/books'}); var mybook = new Book({id: "1"}); mybook.fetch();  //it will access '/books/1'   But if I want to append a query string after the URL? e.g. the book data is at /books/1&details=true. Can I specify this in model?
You can also use the option for the method fetch
mybook.fetch({data:{details: true}}); 
                        You will have to use a custom url function for the model.
Book.url = function() {   return this.urlRoot + '/' + this.id + '?details=true'; }; 
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