add functionality in views and controllers for generation of group order invoices

config/routes.rb

@@ -139,7 +139,7 @@ Rails.application.routes.draw do
         end
       end
     end
-
+    resources :group_order_invoices
     resources :article_categories
 
     ########### Finance
@@ -172,6 +172,7 @@ Rails.application.routes.draw do
         get :unpaid, on: :collection
       end
 
+
       resources :links, controller: 'financial_links', only: [:create, :show] do
         collection do
           get :incomplete