Решено Меню в ROR

<%= render_navigation({
"Home" => "/",
"Article 1" => "/articles/1",
"Article 2" => "/articles/2",
"Article 3" => "/articles/3",
}) %>

<ul>
<li><a href="/">Home</a></li>
<li class="active">Article 1</li>
<li><a href="/articles/2">Article 2</a></li>
<li><a href="/articles/3">Article 3</a></li>
</ul>

<ul class="nav">
  <li class="<%= 'active' if params[:controller] == 'controller1' %>"> <a href="/link">Link</a> </li>
  <li class="<%= 'active' if params[:controller] == 'controller2' %>"> <a href="/link">Link</a> </li>
  <li class="<%= 'active' if params[:controller] == 'controller3' %>"> <a href="/link">Link</a> </li>        
</ul>

<ul class="nav">
  <li class="<%= 'active' if current_page?(root_path) %>"><%= link_to "Home", root_path %></li>
  <li class="<%= 'active' if current_page?(about_path) %>"><%= link_to "About", about_path %></li>
  <li class="<%= 'active' if current_page?(contact_path) %>"><%= link_to "Contact", contact_path %></li>
</ul>