From 45fbbe8021e7c080e25e83a54a3f9947a46c62aa Mon Sep 17 00:00:00 2001
From: Erik Sundell <erik.sundell87@gmail.com>
Date: Fri, 7 Dec 2018 11:27:11 +0100
Subject: [PATCH] initialize empty variables array in constructor so that
 datasources can use the array in explore

---
 public/app/features/templating/template_srv.ts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/public/app/features/templating/template_srv.ts b/public/app/features/templating/template_srv.ts
index 485d244e9ae..74da017bb93 100644
--- a/public/app/features/templating/template_srv.ts
+++ b/public/app/features/templating/template_srv.ts
@@ -17,6 +17,7 @@ export class TemplateSrv {
   constructor() {
     this.builtIns['__interval'] = { text: '1s', value: '1s' };
     this.builtIns['__interval_ms'] = { text: '100', value: '100' };
+    this.variables = [];
   }
 
   init(variables) {