Modal example

controllers.users.js

import Ember from 'ember';

export default Ember.Controller.extend({
  isShowingForm: false,

  actions: {
    toggleModal() {
      this.toggleProperty('isShowingForm');
    }
  }
});

router.js

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

const Router = Ember.Router.extend({
  location: config.locationType,
  rootURL: config.rootURL
});

Router.map(function() {
  this.route('users');
});

export default Router;

templates.application.hbs

<h1>A Basic Form</h1>
{{outlet}}

{{users}}

templates.users.hbs

<button {{action "toggleModal"}}>
	Edit User Info
</button>

{{#if isShowingForm}}
<p>User info</p>

  <form method="patch">
    <div>
      <label>Full Name</label>
      {{input value=fullName placeholder=model.fullName}}
    </div>
    <div>
      <label>Nickname</label>
      {{input value=nickname placeholder=model.nickname}}
    </div>
  </form>
{{/if}}

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"
  }
}