Add missing changes for the stock order

app/documents/order_by_groups.rb

@@ -37,7 +37,7 @@ class OrderByGroups < OrderPdf
       rows << [ I18n.t('documents.order_by_groups.sum'), nil, nil, nil, nil, nil, number_to_currency(total)]
       rows.unshift I18n.t('documents.order_by_groups.rows') # Table Header
 
-      text group_order.ordergroup.name, size: fontsize(9), style: :bold
+      text group_order.ordergroup_name, size: fontsize(9), style: :bold
       table rows, width: 500, cell_style: {size: fontsize(8), overflow: :shrink_to_fit} do |table|
         # borders
         table.cells.borders = [:bottom]

app/views/mailer/order_result.text.haml

@@ -1,4 +1,4 @@
-= raw t '.text0', ordergroup: @group_order.ordergroup.name, order: @order.name, when: I18n.l(@order.ends), user: show_user(@order.updated_by)
+= raw t '.text0', ordergroup: @group_order.ordergroup_name, order: @order.name, when: I18n.l(@order.ends), user: show_user(@order.updated_by)
 - for group_order_article in @group_order.group_order_articles.ordered.all(:include => :order_article)
   - article = group_order_article.order_article.article
   \- #{article.name}:  #{group_order_article.result} x #{article.unit} = #{group_order_article.result * article.fc_price}

app/views/shared/articles_by/_article_single_goa.html.haml

@@ -1,5 +1,5 @@
 %tr{class: if goa.result == 0 then 'unavailable' end, id: "goa_#{goa.id}"}
-  %td{:style => "width:70%"}= goa.group_order.ordergroup.name
+  %td{:style => "width:70%"}= goa.group_order.ordergroup_name
   %td.center= "#{goa.quantity} + #{goa.tolerance}"
   %td.center.input-delta= (edit or true rescue true) ? group_order_article_edit_result(goa) : goa.result
   %td.price{data: {value: goa.total_price}}= number_to_currency(goa.total_price)

app/workers/user_notifier.rb

@@ -11,6 +11,7 @@ class UserNotifier
   def self.finished_order(args)
     order_id = args.first
     Order.find(order_id).group_orders.each do |group_order|
+      next if group_order.ordergroup.nil?
       group_order.ordergroup.users.each do |user|
         begin
           I18n.with_locale(user.settings['profile']['language']) do