title: How do I set order by field when using fuelphp orm's has many?
body: <p>I'm using fuelphp's orm to model my data.  How can I control which order my child elements are returned when doing a cascaded find.</p>
  
  <p>For example, here's the example config to attach comments to a post:</p>
  
  <pre><code>protected static $_has_many = array(
      'comments' =&gt; array(
          'key_from' =&gt; 'id',
          'model_to' =&gt; 'Model_Comment',
          'key_to' =&gt; 'post_id',
          'cascade_save' =&gt; true,
          'cascade_delete' =&gt; false,
      )
  );
  </code></pre>
  
  <p>How can I say, for example, order the comments by the 'date_entered' field?</p>
  
  <p>Thanks in advance,
  David</p>