<% if controller_name == "checks" %> <%= link_to "Checks", checks_path, class: common_classes + " " + active_classes %> <% else %> <%= link_to "Checks", checks_path, class: common_classes + " " + inactive_classes %> <% end %> <% if controller_name == "users" %> <%= link_to "Users", users_path, class: common_classes + " " + active_classes %> <% else %> <%= link_to "Users", users_path, class: common_classes + " " + inactive_classes %> <% end %>