model-backtracking-re-render

application.route.js

import Ember from 'ember';

export default Ember.Route.extend({
  model() {
    return this.store.createRecord('my-model');
  }
});

controllers.application.js

import Ember from 'ember';

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

models.my-model.js

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

export default Model.extend({
  name: attr('string'),
  number: attr('string'),
  
  isValue: Ember.computed('number', function() {
  	return this.get('name') === 'Fun'; 
  })
});

my-component.component.js

import Ember from 'ember';

export default Ember.Component.extend({
  enabled: Ember.computed('disabled', 'readonly', {
    get() {
    	return !(this.get('disabled') || this.get('readonly'));
    }
  })
});

my-component.template.hbs

<label for='comp-1'>Comp 1 </label><br/>

{{input type="password" disabled=enabled}}

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<br>
<br>
{{outlet}}
{{model.[0].paul}}
{{my-component disable="true"}}
<br>
<br>

twiddle.json

{
  "version": "0.13.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": true,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.16.2",
    "ember-template-compiler": "2.16.2",
    "ember-testing": "2.16.2"
  },
  "addons": {
    "ember-data": "2.16.3"
  }
}