New Twiddle

components.test-component.js

import Ember from 'ember';

export default Ember.Component.extend({
  store: Ember.inject.service(),
  showLang: Ember.on('init', function() {
    this.get('store').findAll('language').then(languages => this.set('languages', languages));
  })
});

controllers.application.js

import Ember from 'ember';

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

models.language.js

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

export default Model.extend({
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{test-component}}
<br>
<br>

templates.components.test-component.hbs

{{#each languages as |lang| }}
  <li><a href="/all/language/{{lang.url}}">{{lang.title}}</a></li>
{{/each}}   

twiddle.json

{
  "version": "0.8.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.5.1",
    "ember-data": "2.5.2",
    "ember-template-compiler": "2.5.1"
  }
}