Sortable example for ember.js

widgets.coffee

WidgetsController = Ember.ArrayController.extend
  sortProperties: ["user.firstName"]
  sortAscending: true
  actions:
    sortBy: (sortProperties) ->
      old = @get("sortProperties")
      @set "sortProperties", [sortProperties]
      @toggleProperty "sortAscending"  if sortProperties in old
      return false

widgets.hbs

<table>
  <thead>
    <th>
      Title <button {{action "sortBy" "title"}}>Sort</button>
    </th>
  </thead>
  <tbody>
    {{#each}}
      <tr>
        <td>{{title}}</td>
      </tr>
    {{/each}}
  </tbody>
</table>