From 530bdbbd1a375b3b51bc2f9b824af36de45c2876 Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Thu, 29 Jan 2015 17:10:49 -0500
Subject: [PATCH] dont rename if key doesn't exist

---
 src/database/redis/main.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/database/redis/main.js b/src/database/redis/main.js
index 9b08e4af65..e9bd5b2f09 100644
--- a/src/database/redis/main.js
+++ b/src/database/redis/main.js
@@ -105,8 +105,13 @@ module.exports = function(redisClient, module) {
 
 	module.rename = function(oldKey, newKey, callback) {
 		callback = callback || function() {};
-		redisClient.rename(oldKey, newKey, function(err, res) {
-			callback(err);
+		redisClient.exist(oldKey, function(err, exists) {
+			if (err || !exists) {
+				return callback(err);
+			}
+			redisClient.rename(oldKey, newKey, function(err, res) {
+				callback(err);
+			});
 		});
 	};