FIX: Redirect- und Destroy-Pfad

app/views/themen/_select.html.erb

@@ -23,10 +23,9 @@
 </div>
 </br>
 
+<% unless @thema.id.nil? %>
 <% @att_elements = [{:icon=>:plus, :hicon=>'icon-plus', :text=>I18n.t('attachment.add'), :path=>new_thema_attachment_path(@thema)}] %>
 
 <%= render :partial=>'layouts/pretty_toolbar', :object=>@att_elements %>
-<!--
-<%= link_to 'Neues Attachment', new_thema_attachment_path(@thema) %>
--->
+<% end %>
 <br/>