From 52bd5092199bddff6d665344d5284a74c9e03b55 Mon Sep 17 00:00:00 2001
From: Saophalkun Ponlu <phalkunz@silverstripe.com>
Date: Mon, 5 Oct 2009 21:01:01 +0000
Subject: [PATCH]

---
 _config.php               |  1 +
 code/ErrorPageSubsite.php | 30 ++++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 code/ErrorPageSubsite.php

diff --git a/_config.php b/_config.php
index 820266e..a165e7a 100644
--- a/_config.php
+++ b/_config.php
@@ -15,6 +15,7 @@ Object::add_extension('LeftAndMain', 'ControllerSubsites');
 Object::add_extension('Group', 'GroupSubsites');
 Object::add_extension('Member', 'MemberSubsites');
 Object::add_extension('File', 'FileSubsites');
+Object::add_extension('ErrorPage', 'ErrorPageSubsite');
 
 // Backwards compatibility with SilverStripe 2.2
 if(!class_exists('CMSMenu')) {
diff --git a/code/ErrorPageSubsite.php b/code/ErrorPageSubsite.php
new file mode 100644
index 0000000..5f06a5e
--- /dev/null
+++ b/code/ErrorPageSubsite.php
@@ -0,0 +1,30 @@
+<?php
+class ErrorPageSubsite extends DataObjectDecorator {
+	
+	/**
+	 * Alter file path to generated a static (static) error page file to handle error page template on different sub-sites 
+	 *
+	 * @see Error::get_filepath_for_errorcode()
+	 *
+	 * FIXME since {@link Subsite::currentSubsite()} partly relies on Session, viewing other sub-site (including main site) between 
+	 * opening ErrorPage in the CMS and publish ErrorPage causes static error page to get generated incorrectly. 
+	 */
+	function alternateFilepathForErrorcode($statusCode, $locale = null) {
+		$static_filepath = Object::get_static($this->owner->ClassName, 'static_filepath');
+		$subdomainPart = "";
+
+		if($subsite = Subsite::currentSubsite(false)) {	
+			$subdomain = $subsite->Subdomain;
+			$subdomainPart = "-{$subdomain}";
+		}
+		
+		if(singleton('SiteTree')->hasExtension('Translatable') && $locale && $locale != Translatable::default_locale()) {
+			$filepath = $static_filepath . "/error-{$statusCode}-{$locale}{$subdomainPart}.html";
+		} else {
+			$filepath = $static_filepath . "/error-{$statusCode}{$subdomainPart}.html";
+		}
+
+		return $filepath;
+	}
+	
+}
\ No newline at end of file