gistfile1.rb

# routes/instructor/courses.rb

module Instructor
  class Courses < Cuba
    define do


      on 'courses/:permalink/edit' do |permalink|
        on get do
          course = Course.find_by_permalink( permalink )
          render('instructor/courses/edit', course: course,
                 menu: "instructor/courses/edit_menu")
      end
   end
  end
end

# ---------------------------------------------------------------
# views/layout
....
{{app.partial menu}}
....


# ----------------------------------------------------------------
# views/instructor/courses/edit_menu.mote

<ul>
<li><a href="/instructor/courses/{{course.to_param}}/edit">Details</a></li>
</ul>