New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  store: Ember.inject.service(),
  
  actions: {
    createClosing() {
      const closing = this.get('store').createRecord('closing');
      this.set('closing', closing);
    },
    
    save() {
      this.get('closing').save();
    },
  },
});

models.closing.js

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

export default Model.extend({
  value: attr('number'),
});

templates.application.hbs

<h1>Welcome to {{appName}}</h1>
<h2>Valor: {{closing.value}}</h2>
<br>
<br>
<button onclick={{action "createClosing"}}>Criar</button>
{{#if closing}}
  <form onsubmit={{action "save"}}>
    <label>Value {{input value=closing.value}}</label>
    
    <button type="submit">Salvar</button>
  </form>
{{/if}}
<br>
<br>

twiddle.json

{
  "version": "0.10.7",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.10.0",
    "ember-data": "2.10.0",
    "ember-template-compiler": "2.10.0",
    "ember-testing": "2.10.0"
  },
  "addons": {}
}