Index: trunk/kernel/units/categories/categories_item.php
===================================================================
diff -u -r4806 -r5163
--- trunk/kernel/units/categories/categories_item.php	(.../categories_item.php)	(revision 4806)
+++ trunk/kernel/units/categories/categories_item.php	(.../categories_item.php)	(revision 5163)
@@ -39,13 +39,16 @@
 		function buildParentPath()
 		{
 			$parent_id = $this->GetDBField('ParentId');
-
-			$cat_table = $this->Application->getUnitOption($this->Prefix, 'TableName');
-
-			$sql = 'SELECT ParentPath FROM '.$cat_table.' WHERE CategoryId = %s';
-			$parent_path = $this->Conn->GetOne( sprintf($sql, $parent_id) );
-			if(!$parent_path && $parent_id) $parent_path = '|'.$parent_id.'|';
-
+			
+			if ($parent_id == 0) {
+				$parent_path = '|';
+			}
+			else {
+				$cat_table = $this->Application->getUnitOption($this->Prefix, 'TableName');
+				$sql = 'SELECT ParentPath FROM '.$cat_table.' WHERE CategoryId = %s';
+				$parent_path = $this->Conn->GetOne( sprintf($sql, $parent_id) );
+			}
+			
 			return $parent_path.$this->GetID().'|';
 		}