New Twiddle

controllers.application.js

import Ember from 'ember';

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

controllers.employees.js

import Ember from 'ember';

export default Ember.Controller.extend({
  
  queryParamA: null,
	
  queryParams: ['queryParamA'],

  actions: {
  	setQueryParams: function () {
    	this.set('queryParamA', '1');  
    }
  }
});

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('my-route');
  
  this.route('employees', function () {
    this.route('tab', { path: '/:tab' }, function () {
    	this.route('sub-tab-a');
      this.route('sub-tab-b');
    });
  });
});

export default Router;

routes.employees.js

import Ember from 'ember';

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

routes.employees.tab.js

import Ember from 'ember';

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

routes.employees.tab.sub-tab-a.js

import Ember from 'ember';

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

routes.employees.tab.sub-tab-b.js

import Ember from 'ember';

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

routes.my-route.js

import Ember from 'ember';

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

templates.application.hbs

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

{{#link-to 'my-route'}}my route{{/link-to}}
<br>
{{#link-to 'employees.tab' 'my-profile'}}Employees my-profile{{/link-to}}
{{#link-to 'employees.tab' 'my-dev'}}Employees my-dev{{/link-to}}
<br>
{{outlet}}
<br>
<br>

templates.employees.hbs

Employees
<button {{action 'setQueryParams'}}>Set query params</button>

{{outlet}}

templates.employees.tab.hbs

<br>
{{#link-to 'employees.tab.sub-tab-a'}}Sub tab a{{/link-to}}
{{#link-to 'employees.tab.sub-tab-b'}}Sub tab b{{/link-to}}
<br>

{{outlet}}

templates.employees.tab.sub-tab-a.hbs

sub-tab-a

templates.employees.tab.sub-tab-b.hbs

sub-tab-b

templates.my-route.hbs

MY ROUTE!!

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": {
  }
}