Improved error data passing.

app/views/orders/_form.html.haml

@@ -29,13 +29,12 @@
       - for article in articles
         / check if the article is selected or has an error
         - included = @order.article_ids.include?(article.id.to_s)
+        - row_class = ''
         - if included
-          - included_class = 'selected'
-        - elsif @order.errors.has_key?(:articles) and @order.articles_to_be_removed_and_ordered.map{|a| a.article_id}.include?(article.id)
-          - included_class = 'error'
-        - else
-          - included_class = ''
-        %tr{:class => included_class, :id => article.id.to_s }
+          - row_class = 'selected'
+        - elsif @order.erroneous_article_ids.include?(article.id)
+          - row_class = 'error'
+        %tr{class: row_class, id: article.id}
           %td= check_box_tag "order[article_ids][]", article.id, included, :id => "checkbox_#{article.id}"
           %td.click-me{'data-check-this' => "#checkbox_#{article.id}"}= article.name
           %td=h truncate article.note, :length => 25