From b7e11358cfab16d3bbaa93b4d0b075005c97539b Mon Sep 17 00:00:00 2001
From: Gilles De Mey <gilles.de.mey@gmail.com>
Date: Wed, 3 Aug 2022 08:22:52 +0200
Subject: [PATCH] Alerting: Fix crash when viewing alert group without interval
 (#53166)

---
 .../alerting/unified/components/rules/RuleConfigStatus.tsx  | 2 +-
 public/app/features/alerting/unified/utils/config.ts        | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/public/app/features/alerting/unified/components/rules/RuleConfigStatus.tsx b/public/app/features/alerting/unified/components/rules/RuleConfigStatus.tsx
index 296df2eeb6a..804dbca292f 100644
--- a/public/app/features/alerting/unified/components/rules/RuleConfigStatus.tsx
+++ b/public/app/features/alerting/unified/components/rules/RuleConfigStatus.tsx
@@ -15,7 +15,7 @@ interface RuleConfigStatusProps {
 export function RuleConfigStatus({ rule }: RuleConfigStatusProps) {
   const styles = useStyles2(getStyles);
 
-  const { exceedsLimit } = checkEvaluationIntervalGlobalLimit(rule.group.interval ?? '');
+  const { exceedsLimit } = checkEvaluationIntervalGlobalLimit(rule.group.interval);
 
   if (!exceedsLimit) {
     return null;
diff --git a/public/app/features/alerting/unified/utils/config.ts b/public/app/features/alerting/unified/utils/config.ts
index 1d3adbf760e..7ff88c145a5 100644
--- a/public/app/features/alerting/unified/utils/config.ts
+++ b/public/app/features/alerting/unified/utils/config.ts
@@ -5,7 +5,11 @@ export function getAllDataSources(): Array<DataSourceInstanceSettings<DataSource
   return Object.values(config.datasources);
 }
 
-export function checkEvaluationIntervalGlobalLimit(alertGroupEvaluateEvery: string) {
+export function checkEvaluationIntervalGlobalLimit(alertGroupEvaluateEvery?: string) {
+  if (!alertGroupEvaluateEvery) {
+    return { globalLimit: 0, exceedsLimit: false };
+  }
+
   if (!isValidGoDuration(config.unifiedAlerting.minInterval)) {
     return { globalLimit: 0, exceedsLimit: false };
   }