From 44c07eb2e9e9cbbec778932558e25176cba24eac Mon Sep 17 00:00:00 2001
From: Daniel Lee <dan.limerick@gmail.com>
Date: Fri, 21 Dec 2018 15:40:46 +0100
Subject: [PATCH] azuremonitor: guard for when switching from monaco editor

before it has fully loaded.
---
 .../monaco/kusto_code_editor.ts                               | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/public/app/plugins/datasource/grafana-azure-monitor-datasource/monaco/kusto_code_editor.ts b/public/app/plugins/datasource/grafana-azure-monitor-datasource/monaco/kusto_code_editor.ts
index 16954bfa485..2558ed3fa64 100644
--- a/public/app/plugins/datasource/grafana-azure-monitor-datasource/monaco/kusto_code_editor.ts
+++ b/public/app/plugins/datasource/grafana-azure-monitor-datasource/monaco/kusto_code_editor.ts
@@ -103,6 +103,10 @@ export default class KustoCodeEditor {
 
       monaco.languages['kusto'].getKustoWorker().then(workerAccessor => {
         const model = this.codeEditor.getModel();
+        if (!model) {
+          return;
+        }
+
         workerAccessor(model.uri).then(worker => {
           const dbName = Object.keys(schema.Databases).length > 0 ? Object.keys(schema.Databases)[0] : '';
           worker.setSchemaFromShowSchema(schema, 'https://help.kusto.windows.net', dbName);