Index: branches/RC/core/units/categories/categories_event_handler.php
===================================================================
diff -u -r9617 -r9705
--- branches/RC/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 9617)
+++ branches/RC/core/units/categories/categories_event_handler.php	(.../categories_event_handler.php)	(revision 9705)
@@ -196,6 +196,13 @@
 			$object->addFilter('status_filter', $object->TableName.'.Status = 1');
 		}
 
+		/* TO DO
+		if(strpos($types, 'related') !== false)
+		{
+			$type_clauses = $this->getTypeClauses($event);
+		}
+		*/
+
 		if(strpos($types, 'category_related') !== false)
 		{
 			$object->removeFilter('parent_filter');
@@ -262,6 +269,8 @@
 
 		/********************************************/
 
+
+
 		$includes_or_filter =& $this->Application->makeClass('kMultipleFilter');
 		$includes_or_filter->setType(FLT_TYPE_OR);
 
@@ -518,7 +527,7 @@
 	{
 		if ($event->Name == 'OnMassDelete' && $type == 'before') {
 			$ids = $event->getEventParam('ids');
-			if (!$ids || $this->Application->ConfigValue('m_AllowDeleteRootCats')) {
+			if (!$ids || $this->Application->ConfigValue('AllowDeleteRootCats')) {
 				return ;
 			}
 
@@ -776,6 +785,89 @@
 
 		return parent::getPerPage($event);
 	}
+
+	/**
+	 * Return type clauses for list bulding on front
+	 *
+	 * @param kEvent $event
+	 * @return Array
+	 */
+	function getTypeClauses(&$event)
+	{
+		$types = $event->getEventParam('types');
+		$types = $types ? explode(',', $types) : Array ();
+
+		$except_types = $event->getEventParam('except');
+		$except_types = $except_types ? explode(',', $except_types) : Array ();
+
+		$type_clauses = Array();
+
+		if (in_array('related', $types) || in_array('related', $except_types)) {
+
+
+			$related_to = $event->getEventParam('related_to');
+			if (!$related_to) {
+				$related_prefix = $event->Prefix;
+			}
+			else {
+				$sql = 'SELECT Prefix
+						FROM '.TABLE_PREFIX.'ItemTypes
+						WHERE ItemName = '.$this->Conn->qstr($related_to);
+				$related_prefix = $this->Conn->GetOne($sql);
+			}
+
+			$rel_table = $this->Application->getUnitOption('rel', 'TableName');
+			$item_type = $this->Application->getUnitOption($event->Prefix, 'ItemType');
+
+			$p_item =& $this->Application->recallObject($related_prefix.'.current', null, Array('skip_autoload' => true));
+
+			$cat_id = $this->Application->GetVar('c_id');
+			if (!$cat_id) {
+				$cat_id = $this->Application->GetVar('m_cat_id');
+			}
+			if (!$cat_id) {
+				$cat_id = 0;
+			}
+
+			$p_item->Load($cat_id);
+
+			$p_resource_id = $p_item->GetDBField('ResourceId');
+
+			$sql = 'SELECT SourceId, TargetId FROM '.$rel_table.'
+					WHERE
+						(Enabled = 1)
+						AND (
+								(Type = 0 AND SourceId = '.$p_resource_id.' AND TargetType = '.$item_type.')
+								OR
+								(Type = 1
+									AND (
+											(SourceId = '.$p_resource_id.' AND TargetType = '.$item_type.')
+											OR
+											(TargetId = '.$p_resource_id.' AND SourceType = '.$item_type.')
+										)
+								)
+						)';
+
+			$related_ids_array = $this->Conn->Query($sql);
+			$related_ids = Array();
+
+			foreach ($related_ids_array as $key => $record) {
+				$related_ids[] = $record[ $record['SourceId'] == $p_resource_id ? 'TargetId' : 'SourceId' ];
+			}
+
+			if (count($related_ids) > 0) {
+				$type_clauses['related']['include'] = '%1$s.ResourceId IN ('.implode(',', $related_ids).')';
+				$type_clauses['related']['except'] = '%1$s.ResourceId NOT IN ('.implode(',', $related_ids).')';
+			}
+			else {
+				$type_clauses['related']['include'] = '0';
+				$type_clauses['related']['except'] = '1';
+			}
+			$type_clauses['related']['having_filter'] = false;
+		}
+
+		return $type_clauses;
+	}
 }
 
 ?>
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