add rute and controller method to orders controller

app/controllers/orders_controller.rb

@@ -49,7 +49,7 @@ class OrdersController < ApplicationController
         send_order_pdf @order, params[:document]
       end
       format.csv do
-        send_data OrderCsv.new(@order).to_csv, filename: @order.name + '.csv', type: 'text/csv'
+        send_data OrderCsv.new(@order, options= {custom_csv: params[:custom_csv]}).to_csv, filename: @order.name + '.csv', type: 'text/csv'
       end
       format.text do
         send_data OrderTxt.new(@order).to_txt, filename: @order.name + '.txt', type: 'text/plain'
@@ -57,6 +57,19 @@ class OrdersController < ApplicationController
     end
   end
 
+  def custom_csv
+    @order = Order.find(params[:id])
+    @view = (params[:view] || 'default').gsub(/[^-_a-zA-Z0-9]/, '')
+    @partial = case @view
+               when 'default'  then 'articles'
+               when 'groups'   then 'shared/articles_by/groups'
+               when 'articles' then 'shared/articles_by/articles'
+               else 'articles'
+               end
+
+    render :layout => false
+  end
+
   # Page to create a new order.
   def new
     if params[:order_id]

config/routes.rb

@@ -47,6 +47,7 @@ Rails.application.routes.draw do
         get :receive
         post :receive
 
+        get :custom_csv
         get :receive_on_order_article_create
         get :receive_on_order_article_update
       end