<% unless current_user.nil? %>

Hello <%= current_user.contact.firstname %>
You are loged in as: <%= current_user.login %>
<%= link_to 'Change my settings', mydetail_path(current_user.contact_id) %>

<% unless current_user.admin_id == 3 %> <%= link_to 'CMS', cms_path %>
<% end %> <%= link_to 'Log Out', '/logout' -%> <% else %> <%= link_to 'Log In', '/login' -%> or <%= link_to 'Sign up', signcontact_path %> <% end %>