Show stockorder in PDFs

When generating a PDF, which contains a order from a supplier and stock,
we want show that some articles are from stock instead of showing the
original supplier, since the people want to know where to look for their
products during pickup.

app/documents/order_by_articles.rb

@@ -30,7 +30,7 @@ class OrderByArticles < OrderPdf
       next unless rows.length > 1
 
       name = "#{order_article.article.name} (#{order_article.article.unit} | #{order_article.price.unit_quantity} | #{number_to_currency(order_article.price.fc_price)})"
-      name += " #{order_article.article.supplier.name}" if @options[:show_supplier]
+      name += " #{order_article.order.name}" if @options[:show_supplier]
       nice_table name, rows, dimrows do |table|
         table.column(0).width = bounds.width / 2
         table.columns(1..-1).align = :right

app/documents/order_by_groups.rb

@@ -25,7 +25,7 @@ class OrderByGroups < OrderPdf
       each_group_order_article_for_ordergroup(oa_id) do |goa|
         dimrows << rows.length if goa.result == 0
         rows <<  [goa.order_article.article.name,
-                  goa.order_article.article.supplier.name,
+                  goa.group_order.order.name,
                   group_order_article_quantity_with_tolerance(goa),
                   group_order_article_result(goa),
                   order_article_price_per_unit(goa.order_article),