Edy Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Edy Twiddle',
  stepStatus: [
    Ember.Object.create({isValid: false}), 
    Ember.Object.create({isValid: false}),
    Ember.Object.create({isValid: false}),
    Ember.Object.create({isValid: false}),
    Ember.Object.create({isValid: false})
  ],
	
	allStepsValid: Ember.computed('[email protected]', function() {
    return this.get('stepStatus').isEvery('isValid');
  }),
  
  actions: {
    toggleStep(index) {
      this.get('stepStatus').objectAt(index).toggleProperty('isValid');
    }
  }
});

templates.application.hbs

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

Click para cambiar el valor:
<ul>
{{#each stepStatus as |step index|}}
	<li style="cursor: pointer;" {{action "toggleStep" index}}>{{step.isValid}}</li>
  <br>
{{/each}}
</ul>
<h2>{{allStepsValid}}</h2>

twiddle.json

{
  "version": "0.10.6",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.9.0",
    "ember-data": "2.9.0",
    "ember-template-compiler": "2.9.0",
    "ember-testing": "2.9.0"
  },
  "addons": {}
}