From 8c390590d970b76c8c69fed07d1b88d1bd84612d Mon Sep 17 00:00:00 2001
From: Angie Byron <webchick@24967.no-reply.drupal.org>
Date: Thu, 24 Jun 2010 17:28:10 +0000
Subject: [PATCH] #833094 by carlos8f, David_Rothstein: Fixed Ajax requests in
 installer cause cron to run prematurely.

---
 modules/system/system.module | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/system/system.module b/modules/system/system.module
index d8ad21f16c9..23d218af264 100644
--- a/modules/system/system.module
+++ b/modules/system/system.module
@@ -3283,7 +3283,10 @@ function system_page_alter(&$page) {
  * Run the automated cron if enabled.
  */
 function system_run_automated_cron() {
-  if (($threshold = variable_get('cron_safe_threshold', DRUPAL_CRON_DEFAULT_THRESHOLD)) > 0) {
+  // If the site is not fully installed, suppress the automated cron run.
+  // Otherwise it could be triggered prematurely by AJAX requests during
+  // installation.
+  if (($threshold = variable_get('cron_safe_threshold', DRUPAL_CRON_DEFAULT_THRESHOLD)) > 0 && variable_get('install_task') == 'done') {
     $cron_last = variable_get('cron_last', NULL);
     if (!isset($cron_last) || (REQUEST_TIME - $cron_last > $threshold)) {
       drupal_cron_run();