Index: openacs-4/packages/xowiki/www/ckeditor-images/thumb-view.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/www/ckeditor-images/thumb-view.tcl,v
diff -u -r1.4 -r1.5
--- openacs-4/packages/xowiki/www/ckeditor-images/thumb-view.tcl	13 Sep 2012 16:05:34 -0000	1.4
+++ openacs-4/packages/xowiki/www/ckeditor-images/thumb-view.tcl	27 Oct 2014 16:42:07 -0000	1.5
@@ -1,10 +1,10 @@
 ad_page_contract {
 	
 } {
-  {parent_id ""}
+  {parent_id:naturalnum ""}
 } -validate {
   parent_id_exists -requires {parent_id} {
-    if {[db_0or1row object_exists "select item_id from cr_items where item_id =:parent_id"] == 0} {
+    if {[xo::dc 0or1row object_exists "select item_id from cr_items where item_id =:parent_id"] == 0} {
       #ad_complain "Das angegebene Objekt existiert nicht."
     }
   }