Sortable

controllers.application.js

import Ember from 'ember';
const a = Ember.A;

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  items: a(['Uno', 'Dos', 'Tres', 'Cuatro', 'Cinco']),
  actions: {
    updated(items) {
      console.dir(items);
      this.set("items", items);
    }
  }
});

styles.app.css

body {
  margin: 12px 16px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 12pt;
}

.container { border: 1px solid #aaa; padding: 20px; margin: 0 0 5px; background: #f3f3f3; }

templates.application.hbs

{{#sortable-group onChange="updated" as |group|}}
  {{#each items as |item|}}
    {{#sortable-item class="container" model=item group=group handle=".handle"}}
      <span class="handle" data-item="{{item}}">
      	&vArr;
      </span>
		  {{item}}<br/>
      extra text
    {{/sortable-item}}
  {{/each}}
{{/sortable-group}}

twiddle.json

{
  "version": "0.12.1",
  "EmberENV": {
    "FEATURES": {}
  },
  "options": {
    "use_pods": false,
    "enable-testing": false
  },
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "2.12.0",
    "ember-template-compiler": "2.12.0",
    "ember-testing": "2.12.0"
  },
  "addons": {
    "ember-data": "2.12.1",
    "ember-sortable": "1.10.0"
  }
}