From 3e4016b388181a1185fca496f89780de76875ea4 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@status.net>
Date: Thu, 7 Apr 2011 16:24:56 -0400
Subject: [PATCH] do a short-term cache of notice scope

---
 classes/Notice.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/classes/Notice.php b/classes/Notice.php
index c908e7e3a7..c80e57dc97 100644
--- a/classes/Notice.php
+++ b/classes/Notice.php
@@ -2182,6 +2182,21 @@ class Notice extends Memcached_DataObject
      * @return boolean whether the profile is in the notice's scope
      */
     function inScope($profile)
+    {
+        $keypart = sprintf('notice:in-scope-for:%d:%d', $this->id, $profile->id);
+
+        $result = self::cacheGet($keypart);
+
+        if ($result === false) {
+            $bResult = $this->_inScope($profile);
+            $result = ($bResult) ? 1 : 0;
+            self::cacheSet($keypart, $result, 0, 300);
+        }
+
+        return ($result == 1) ? true : false;
+    }
+
+    protected function _inScope($profile)
     {
         // If there's no scope, anyone (even anon) is in scope.