From 00f95679ceadc46809e40ad7d9f3c47fafdd9598 Mon Sep 17 00:00:00 2001
From: Ingo Schommer <ingo@silverstripe.com>
Date: Wed, 9 Apr 2008 11:08:58 +0000
Subject: [PATCH] Merged revisions 47621 via svnmerge from
 svn://svn.silverstripe.com/silverstripe/modules/sapphire/branches/2.2.0-mesq

........
  r47621 | ischommer | 2008-01-04 21:44:07 +1300 (Fri, 04 Jan 2008) | 1 line

  added get_file_extension()
........


git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@52398 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 filesystem/File.php | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/filesystem/File.php b/filesystem/File.php
index efbf3aa00..b9606ebd0 100755
--- a/filesystem/File.php
+++ b/filesystem/File.php
@@ -401,7 +401,18 @@ class File extends DataObject {
 	 * legacy code.
 	 */
 	function getExtension() {
-		return strtolower(substr($this->getField('Filename'),strrpos($this->getField('Filename'),'.')+1));
+		return self::get_file_extension($this->getField('Filename'));
+	}
+	
+	/**
+	 * Gets the extension of a filepath or filename,
+	 * by stripping away everything before the last "dot".
+	 *
+	 * @param string $filename
+	 * @return string
+	 */
+	public static function get_file_extension($filename) {
+		return strtolower(substr($filename,strrpos($filename,'.')+1));
 	}
 	
 	function getFileType() {