Index: branches/5.3.x/core/units/filters/item_filter_eh.php
===================================================================
diff -u -N -r15483 -r15698
--- branches/5.3.x/core/units/filters/item_filter_eh.php	(.../item_filter_eh.php)	(revision 15483)
+++ branches/5.3.x/core/units/filters/item_filter_eh.php	(.../item_filter_eh.php)	(revision 15698)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: item_filter_eh.php 15165 2012-03-09 10:24:24Z alex $
+* @version	$Id: item_filter_eh.php 15698 2013-02-19 11:33:17Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2011 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -104,10 +104,9 @@
 			$field = $object->GetDBField('FilterField');
 
 			if ( $field ) {
-				$fields = $this->Application->getUnitOption($prefix, 'Fields');
-				$virtual_fields = $this->Application->getUnitOption($prefix, 'VirtualFields');
+				$config = $this->Application->getUnitConfig($prefix);
 
-				if ( !isset($fields[$field]) && !isset($virtual_fields[$field]) ) {
+				if ( !$config->getFieldByName($field) && !$config->getVirtualFieldByName($field) ) {
 					$object->SetError('FilterField', 'non_existing', null, Array ($prefix));
 				}
 			}