1  
   2    layout :my_layout_func
   3  
   4    ...
   5  
   6  protected
   7  
   8    def my_layout_func
   9     # anything ruby will work
  10     ['list','index',nil].include?(action_name)? 
  11     'noheading':'my_layout'
  12   
  13     # or you could do
  14     case action_name
  15      when 'monkey': 'monkey_layout'
  16      when 'edit'  : 'form_layout'
  17     end
  18   end
  19