From 5a77fafc6101d8f7c1a69ce3b6f97074877e16c6 Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Thu, 4 Feb 2016 22:54:15 +0300
Subject: [PATCH] Fixed annotation filter. Show all events when filter is
 empty.

---
 plugins/datasource-zabbix/datasource.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/datasource-zabbix/datasource.js b/plugins/datasource-zabbix/datasource.js
index 6119229..5aaaf5c 100644
--- a/plugins/datasource-zabbix/datasource.js
+++ b/plugins/datasource-zabbix/datasource.js
@@ -361,7 +361,7 @@ function (angular, _, dateMath, utils, metricFunctions) {
               triggers = _.filter(triggers, function(trigger) {
                 return utils.buildRegex(annotation.trigger).test(trigger.description);
               });
-            } else {
+            } else if (annotation.trigger) {
               triggers = _.filter(triggers, function(trigger) {
                 return trigger.description === annotation.trigger;
               });