New Twiddle

adapters.application.js

import DS from 'ember-data';
export default DS.FixtureAdapter.extend();

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Ember Twiddle',
  isVisible: false,
    
  actions: {
    toggleInput() {
      this.toggleProperty('isVisible');
    },
    
    submit() {
      this.get('model').save();
    }
  }
});

application.route.js

import Ember from 'ember';

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

application.template.hbs

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

<button {{action 'toggleInput'}}>
  Toggle that input!
</button>

{{#if isVisible}}
  {{input
    value=model.someProperty
    insert-newline=(action 'submit')
  }}
{{/if}}

<br>
<br>
Let's see that model property:
<br>
{{model.someProperty}}

models.my-model.js

import DS from 'ember-data';

const {
  attr
} = DS;

const MyModel = DS.Model.extend({
  someProperty: attr('string')
});

MyModel.reopenClass({
  FIXTURES: [
    {
      id: 1,
      someProperty: 'Dickinson'
    },
    {
      id: 2,
      someProperty: 'Twain'
    }
  ]
});

export default MyModel;

twiddle.json

{
  "version": "0.5.0",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "1.13.13",
    "ember-data": "1.13.15",
    "ember-template-compiler": "1.13.13"
  }
}