app.js

var Notes = Ember.Application.create({
});

/** Router **/
Notes.Router.map(function () {
    this.resource('notes', {path: "/"}, function() {
  	this.route('note', {path: "/note/:note_id"});
	});
});

Notes.NotesRoute = Ember.Route.extend({
	model: function() {
		return this.store.find('note');
	}
});

Notes.NotesNoteRoute = Ember.Route.extend({
	model: function(note) {
		return this.store.find('note', note.note_id);
	}
});

Notes.NotesController = Ember.ArrayController.extend({
	newNoteName: null,

	actions: {
	    createNewNote: function() {
	        var content = this.get('content');
	        var newNoteName = this.get('newNoteName');
	        var unique = newNoteName != null && newNoteName.length > 1;
	
	        content.forEach(function(note) {
	            if (newNoteName === note.get('name')) {
	                unique = false; return;
	            }
	        });

	        if (unique) {
				var newNote = this.store.createRecord('note');
				newNote.set('id', newNoteName);
				newNote.set('name', newNoteName);
				newNote.save();
	
	            this.set('newNoteName', null);
	        } else {
	            alert('Note must have a unique name of at least 2 characters!');
	        }
	    }
	}
});

/** Ember Data **/
Notes.Note = DS.Model.extend({
    name: DS.attr('string'),
	value: DS.attr('string')
});

Notes.Store = DS.Store.extend({
    adapter: DS.LSAdapter
});