app/helpers/admin/base_helper.rb
# return 'current' string if the controller name is settings
return 'current' string if the controller name is settings
return ' current ' string if the controller name is settings
def class_settings
    if controller.controller_name == 'settings'
      "current"
    end
  end
def class_settings if controller . controller_name == 'settings' "current" end end
return 'current' string if the controller name is settings
return ' current ' string if the controller name is settings