New Twiddle

controllers.application.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  newPost: Ember.computed(function() {
    return this.store.createRecord('post');
  }),
  posts: Ember.computed(function() {
    return this.store.peekAll('post');
  }),
  
  actions: {
    done() {
      this.set('newPost', this.store.createRecord('post'));
    },
    cancel() {
      this.get('newPost').rollbackAttributes();
      this.set('newPost', this.store.createRecord('post'));
    }
  }
  
});

models.post.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')
});

templates.application.hbs

<h1>New Post</h1>

<input value={{newPost.name}} oninput={{action (mut newPost.name) value="target.value"}}>
<button onclick={{action 'cancel'}}>Cancel</button>
<button onclick={{action 'done'}}>Done</button>
<ul>
  {{#each posts as |post|}}
    <li>{{post.name}}</li>
  {{/each}}
</ul>

twiddle.json

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