New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Readonly Nested Data'
});

models.image.js

import Model from "ember-data/model";
import attr from "ember-data/attr";
import DS from "ember-data";
import { belongsTo, hasMany } from "ember-data/relationships";

export default Model.extend({
  photgrapher: DS.attr('string'),
  topic: DS.attr('string'),
  name: DS.attr('string'),
  metadata: DS.attr()
});

routes.index.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
  	return this.store.peekAll('image');
  },
  beforeModel() {
    
  	this.store.createRecord('image', {
    	photographer: "Nigel Thornberry",
      topic: "Wildlife",
      name: "Blargargh", 
	    metadata: {
        colorSpace: "RGB",
        focalLength: 29,
        alphaChannel: false,
        exposureTime: "1/125",
        location: {
        	lat: 1.626309,
        	long: 37.3
      	}
        
      }
    })
  }
});

templates.application.hbs

<h1>{{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
<br>

templates.index.hbs

<div>Did you know that you can have readonly nested data be part of your Ember models?Example:</div>
<br />
{{#each model as |photo|}}
<div>Photographer: {{photo.photographer}}</div>
<div>Title: {{photo.name}}</div>
<div>Latitude: {{photo.metadata.location.lat}}</div>
<div>Longitude: {{photo.metadata.location.long}}</div>
{{/each}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1"
  }
}