# File lib/abstract_controller/helpers.rb, line 131 def modules_for_helpers(args) args.flatten.map! do |arg| case arg when String, Symbol file_name = "#{arg.to_s.underscore}_helper" require_dependency(file_name, "Missing helper file helpers/%s.rb") file_name.camelize.constantize when Module arg else raise ArgumentError, "helper must be a String, Symbol, or Module" end end end