title: How can I use datetime_field with HAML?
body: <p>I am trying to use <a href="http://edgeapi.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-datetime_field" rel="nofollow">datetime_field</a> from Rails 4 in my views. </p>
  
  <pre><code>= f.datetime_field :scheduled_at
  </code></pre>
  
  <p>I was hoping to be getting pretty pop-up a-la JQuery as shown <a href="http://blog.remarkablelabs.com/2012/12/new-html5-form-input-helpers-rails-4-countdown-to-2013" rel="nofollow">here</a>. </p>
  
  <p>I am getting the output below and a regular text input field in the browser</p>
  
  <pre><code>&lt;input class="span2" id="appendedInput" name="appointment[scheduled_at]" type="datetime"&gt;
  </code></pre>
  
  <p>NB I am using HAML and not ERB. Has anyone been successfull with the combination of Ruby 2, Rails 4, datetime_field and HAML? </p>
  
  <ul>
  <li>actionpack (4.0.0.rc2)</li>
  <li>haml (4.0.3)</li>
  <li>rails (4.0.0.rc2)</li>
  <li>railties (4.0.0.rc2)</li>
  </ul>
  
  <p>I hope I am missing something obvious ...</p>