SampleApp::Application.routes.draw do

  resources :uploads
  resources :job_application_trackers do
    resources :uploads
  end
end


#####  index.html.erb


<td><%= link_to('Show', job_application_tracker_upload ) %></td>

######
### rake routes

  job_application_tracker_uploads GET    /job_application_trackers/:job_application_tracker_id/uploads(.:format)          {:action=>"index", :controller=>"uploads"}
                                    POST   /job_application_trackers/:job_application_tracker_id/uploads(.:format)          {:action=>"create", :controller=>"uploads"}
 new_job_application_tracker_upload GET    /job_application_trackers/:job_application_tracker_id/uploads/new(.:format)      {:action=>"new", :controller=>"uploads"}
edit_job_application_tracker_upload GET    /job_application_trackers/:job_application_tracker_id/uploads/:id/edit(.:format) {:action=>"edit", :controller=>"uploads"}
     job_application_tracker_upload GET    /job_application_trackers/:job_application_tracker_id/uploads/:id(.:format)      {:action=>"show", :controller=>"uploads"}
                                    PUT    /job_application_trackers/:job_application_tracker_id/uploads/:id(.:format)      {:action=>"update", :controller=>"uploads"}
                                    DELETE /job_application_trackers/:job_application_tracker_id/uploads/:id(.:format)      {:action=>"destroy", :controller=>"uploads"}