From 0d09fcbee749b734c88739924f65715f40a5fe8a Mon Sep 17 00:00:00 2001
From: barisusakli <barisusakli@gmail.com>
Date: Wed, 28 Sep 2016 12:17:56 +0300
Subject: [PATCH] fix setAdd on redis for empty arrays

---
 src/database/redis/sets.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/database/redis/sets.js b/src/database/redis/sets.js
index 9443ed928f..1eaab00cc5 100644
--- a/src/database/redis/sets.js
+++ b/src/database/redis/sets.js
@@ -5,6 +5,12 @@ module.exports = function(redisClient, module) {
 
 	module.setAdd = function(key, value, callback) {
 		callback = callback || function() {};
+		if (!Array.isArray(value)) {
+			value = [value];
+		}
+		if (!value.length) {
+			return callback();
+		}
 		redisClient.sadd(key, value, function(err, res) {
 			callback(err);
 		});