From 38f439708cd78b224978c3d3d9cd85d40a9f9c04 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Fri, 2 Aug 2013 16:20:39 +0400
Subject: rollback current transaction before trying to report SQL query
 errors, properly save database error messages when logging query errors

---
 classes/db/mysql.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'classes/db/mysql.php')

diff --git a/classes/db/mysql.php b/classes/db/mysql.php
index aab05aca2..d4b45b98c 100644
--- a/classes/db/mysql.php
+++ b/classes/db/mysql.php
@@ -26,9 +26,12 @@ class Db_Mysql implements IDb {
 	}
 
 	function query($query, $die_on_error = true) {
-		$result = mysql_query($query, $this->link);
+		$result = @mysql_query($query, $this->link);
 		if (!$result) {
-			user_error("Query $query failed: " . ($this->link ? mysql_error($this->link) : "No connection"),
+			$error = @mysql_error($this->link);
+
+			@mysql_query("ROLLBACK", $this->link);
+			user_error("Query $query failed: " . ($this->link ? $error : "No connection"),
 				$die_on_error ? E_USER_ERROR : E_USER_WARNING);
 		}
 		return $result;
-- 
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