From bc9d236dc130f7263b6539854d54c7018870f039 Mon Sep 17 00:00:00 2001
From: Dries Buytaert <dries@buytaert.net>
Date: Sun, 10 Apr 2011 18:59:29 +0200
Subject: [PATCH] - Patch #598586 by grendzy, deekayen: watchdog() assumes  is
 defined.

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

diff --git a/modules/dblog/dblog.module b/modules/dblog/dblog.module
index 00d484c52569..496a043a76a6 100644
--- a/modules/dblog/dblog.module
+++ b/modules/dblog/dblog.module
@@ -138,9 +138,12 @@ function _dblog_get_message_types() {
  * Note some values may be truncated for database column size restrictions.
  */
 function dblog_watchdog(array $log_entry) {
+  // The user object may not exist in all conditions, so 0 is substituted if needed.
+  $user_uid = isset($log_entry['user']->uid) ? $log_entry['user']->uid : 0;
+
   Database::getConnection('default', 'default')->insert('watchdog')
     ->fields(array(
-      'uid' => $log_entry['user']->uid,
+      'uid' => $user_uid,
       'type' => substr($log_entry['type'], 0, 64),
       'message' => $log_entry['message'],
       'variables' => serialize($log_entry['variables']),
-- 
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