entrydns/app/views/fragments/_sidebar.html.erb

<div id="sidebar">

  <div class="block">
    <h3>Menu</h3>
    <ul class="navigation">
      <li><%= link_to 'Dashboard', dashboard_path, :data => {:pjax => '#main'} %></li>
      <li><%= link_to 'Domains', domains_path, :data => {:pjax => '#main'} %></li>
    </ul>
  </div>

</div>