New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle'
});

models.author.js

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

export default Model.extend({
  name: attr('string')
});

models.comment.js

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

export default Model.extend({
  text: attr('string')
});

models.post.js

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

export default Model.extend({
  author: belongsTo('author'),
  comments: hasMany('comment')
});

routes.application.js

import Ember from 'ember';

export default Ember.Route.extend({
  model(){
    this.store.pushPayload('post', {
    	data: {
      	id: 1,
        type: 'post',
        relationships: {
          author: {data: {id: 1, type: 'author'}},
          comments: { data:[{id: 1, type: 'comment'}, {id: 2, type: 'comment'}] }
        }
      },
      included: [
        {id: 1, type: 'author', attributes: {name: "joe"}},
        {id: 1, type: 'comment', attributes: {text: "blah"}},
        {id: 2, type: 'comment', attributes: {text: "blah"}}
      ]
    })
    
    return this.store.peekAll('post').get('firstObject')
  }
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
<br>
{{model.author.name}}
{{#each model.comments as |comment|}}
  {{comment.text}}
{{/each}}
<br>

twiddle.json

{
  "version": "0.10.4",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.7.0",
    "ember-data": "2.7.0",
    "ember-template-compiler": "2.7.0"
  },
  "addons": {}
}