From 646b52a75acbfccd126e2ac33e31d0b0cf7323c0 Mon Sep 17 00:00:00 2001
From: Alexey Velikiy <av@corpglory.com>
Date: Mon, 28 Jan 2019 01:18:05 +0100
Subject: [PATCH] _getDatasourceByName null check

---
 src/module.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/module.ts b/src/module.ts
index 512e8a5..bdbf761 100644
--- a/src/module.ts
+++ b/src/module.ts
@@ -614,6 +614,9 @@ class GraphCtrl extends MetricsPanelCtrl {
   }
 
   private async _getDatasourceByName(name: string) {
+    if(name === null) {
+      throw new Error('Trying to get datasource with NULL name');
+    }
     if(this._datasources[name] === undefined) {
       const datasource = await this.backendSrv.get(`/api/datasources/name/${name}`);
       return datasource;