Error in AssetManager

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Extending FileClass
2. Using DataObjectManager' AssetManager

What is the expected output? What do you see instead?
An SQL error

What version of the product are you using? On what operating system?
513

Please provide any additional information below.
Index: dataobject_manager/code/AssetManagerFolder.php
===================================================================
--- dataobject_manager/code/AssetManagerFolder.php  (revision 513)
+++ dataobject_manager/code/AssetManagerFolder.php  (working copy)
@@ -15,7 +15,7 @@
       'Title' => 30,
       'Filename' => 70
     ));
-    $folder_filter = "(Classname != 'Folder' AND ParentID = 
".$this->owner->ID.")"; 
+    $folder_filter = "(\"File\".ClassName != 'Folder' AND ParentID = 
".$this->owner->ID.")"; 
     $filter = $a->sourceFilter ? "({$a->sourceFilter}) AND $folder_filter" : $folder_filter;
     $a->setSourceFilter($filter);
     $a->setParentClass("Folder");
Index: dataobject_manager/code/AssetManager.php
===================================================================
--- dataobject_manager/code/AssetManager.php    (revision 513)
+++ dataobject_manager/code/AssetManager.php    (working copy)
@@ -24,7 +24,7 @@
     $fields->push(new SimpleTreeDropdownField('ParentID','Folder',"Folder"));
     $fields->push(new HiddenField('ID','',$controller->ID));

-    parent::__construct($controller, $name, $sourceClass, null, $headings, 
$fields, "Classname != 'Folder'");
+    parent::__construct($controller, $name, $sourceClass, null, $headings, 
$fields, "\"File\".ClassName != 'Folder'");
   }

Original issue reported on code.google.com by cleggm...@gmail.com on 19 Nov 2010 at 9:54