From 037e73a8cbaf1dffa942e23ef30f53b77487bb83 Mon Sep 17 00:00:00 2001
From: Sam Minnee <sam@silverstripe.com>
Date: Fri, 31 Jul 2009 05:43:47 +0000
Subject: [PATCH] ENHANCEMENT: Dramatically improved performance of large-scale
 canEdit() and canDelete() checks, so that big sites can be supported in the
 CMS.

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@83443 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 code/LeftAndMain.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/LeftAndMain.php b/code/LeftAndMain.php
index e9d057fd..33b30ecd 100644
--- a/code/LeftAndMain.php
+++ b/code/LeftAndMain.php
@@ -506,6 +506,10 @@ class LeftAndMain extends Controller {
 		
 		// Ensure current page is exposed
 		if($p = $this->currentPage()) $obj->markToExpose($p);
+		
+		// NOTE: SiteTree/CMSMain coupling :-(
+		SiteTree::prepopuplate_permission_cache('edit', $obj->markedNodeIDs());
+		SiteTree::prepopuplate_permission_cache('delete', $obj->markedNodeIDs());
 
 		// getChildrenAsUL is a flexible and complex way of traversing the tree
 		$titleEval = '