routing.rb

Master::Application.routes.draw do
  # ... bunch of resources

  # resource-less controllers
  { 'statistics' => %w(select_period filter drop_filter apply_filters
                       add_filter show get_filter_values
                    ),
    'warehouse'  => %w(delivery delivery_with_po delivery_without_po
                       add_product_field shipment_csv_line shipment_put
                       shipment_csv
                    ),
    'finance'    => %w(balance show_balance vat show_vat invoices show_invoices
                       stats show_stats dokter_online dokter_online_create 
                       buckaroo buckaroo_upload
                    ),
  }.each do |controller, methods|
    # match index
    match "/#{controller}" => "#{controller}#index"
    
    # match all the special methods
    methods.each do |method|
      match "/#{controller}/#{method}" => "#{controller}##{method}"
    end
  end
end