Active proper menu in Rails views

_navbar.html.erb

...
<div class="hor-menu  ">
    <ul class="nav navbar-nav">
        <li class="<%= active('dashboard', 'index')%>">
            <%=link_to "Dashboard", root_path %>
        </li>
        <li class="<%= active('organisations,organisation_people')%>">
            <%=link_to "Organisations", organisations_path %>
        </li>
        <li class="<%= active('people')%>">
            <%=link_to "People", people_path %>
        </li>
        <li class="<%= active('dashboard', 'about')%>">
            <%=link_to "About", about_path %>
        </li>
        <li class="<%= active('dashboard', 'contact')%>">
            <%=link_to "Contact", contact_path %>
        </li>
    </ul>
</div>
....

application_helper.rb

def active controllers, action_names = nil
    class_name = controllers.split(",").any? { |c| controller.controller_name == c.strip } ? "active" : ""
    if class_name.present? && action_names.present?
      return action_names.split(",").any? { |an| controller.action_name == an.strip } ? "active" : ""
    end
    class_name
end