Injected Nested Controller

controllers.application.js

import Ember from 'ember';

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

controllers.generics.some-super-controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  superProperty: 'Super!'
});

controllers.index.js

import Ember from 'ember';

export default Ember.Controller.extend({
});

controllers.main.index.js

import Ember from 'ember';

export default Ember.Controller.extend({
  main: Ember.inject.controller(),
  superController: Ember.inject.controller('generics/some-super-controller'),
  
  mainProperty1: Ember.computed('main.mainProperty1', function() {
		return this.get('main.mainProperty1');	
	}),
  
  superProperty: Ember.computed('superController.superProperty', function() {
  	return this.get('superController.superProperty');
  })
});

controllers.main.js

import Ember from 'ember';

export default Ember.Controller.extend({
  mainProperty1: 'First Property'
});

router.js

import Ember from 'ember';
import config from './config/environment';

const Router = Ember.Router.extend({
  location: 'none',
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('main', function() {
  	this.route('index');
  });
});

export default Router;

routes.index.js

import Ember from 'ember';

export default Ember.Route.extend({
  redirect() {
    this.transitionTo('main');
  }
});

routes.main.index.js

import Ember from 'ember';

export default Ember.Route.extend({
});

routes.main.js

import Ember from 'ember';

export default Ember.Route.extend({
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

templates.application.hbs

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

templates.main.hbs

<h3>This is main.hbs</h3>

<p>Property1 from main controller: {{mainProperty1}}</p>

{{outlet}}

templates.main.index.hbs

<h5>This is main/index.hbs</h5>

<p>This is a property from main which was injected: {{mainProperty1}}</p>

<h6>From super controller: {{superProperty}}</h6>

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"
  }
}