From ceb27c4a41850e15aad683b0e4abfdc2d23f465c Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Fri, 15 Oct 2010 03:02:17 +0000
Subject: [PATCH] BUGFIX Fixed ImageField->EditFileForm() to list subclasses of
 Image in tree dropdown (fixes #5708, thanks keeny) (from r106671)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@112533 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 forms/ImageField.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/forms/ImageField.php b/forms/ImageField.php
index c3424012f..6ce20f082 100755
--- a/forms/ImageField.php
+++ b/forms/ImageField.php
@@ -28,7 +28,7 @@ class ImageField extends FileIFrameField {
 	 * @return Form
 	 */
 	public function EditFileForm() {
-		$filter = create_function('$item', 'return ($item->ClassName=="Folder" || $item->ClassName=="Image");');
+		$filter = create_function('$item', 'return (in_array("Folder", ClassInfo::ancestry($item->ClassName)) || in_array("Image", ClassInfo::ancestry($item->ClassName)));');
 		
 		$form = parent::EditFileForm();
 		$form->dataFieldByName('ExistingFile')->setFilterFunction($filter);