Index: openacs-4/packages/evaluation/www/admin/groups/one-group.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/evaluation/www/admin/groups/one-group.tcl,v
diff -u -r1.9 -r1.10
--- openacs-4/packages/evaluation/www/admin/groups/one-group.tcl	8 Aug 2006 21:26:43 -0000	1.9
+++ openacs-4/packages/evaluation/www/admin/groups/one-group.tcl	27 Oct 2014 16:41:27 -0000	1.10
@@ -7,8 +7,8 @@
 	@creation-date Mar 2004
 	@cvs-id $Id$
 } {
-	task_id:integer
-	evaluation_group_id:integer
+	task_id:naturalnum,notnull
+	evaluation_group_id:naturalnum,notnull
 	{orderby:optional}
 }
 
@@ -47,7 +47,7 @@
 
 set orderby [template::list::orderby_clause -orderby -name one_group]
 
-if { [string equal $orderby ""] } {
+if {$orderby eq ""} {
     set orderby " order by student_name asc"
 }