tejasajmera commented on a change in pull request #6545:
URL: https://github.com/apache/incubator-pinot/pull/6545#discussion_r570719078



##########
File path: 
thirdeye/thirdeye-frontend/app/pods/components/self-serve-alert-yaml-details/component.js
##########
@@ -38,6 +39,15 @@ export default Component.extend({
     }
   },
 
+  didReceiveAttrs() {
+    this._super(...arguments);
+
+    const { alertData: { metric: metrics = [] } = {} } = this;
+
+    this.set('firstMetric', metrics[0]);
+    this.set('remainingMetricCount', metrics.length - 1);

Review comment:
       This is remaining metric count, not the actual metric count. We display 
the first metric and the count of remaining metrics. That is the reason you 
subtract by 1. If there are no metrics or just 1 metric then the remaining 
metric count will not be displayed in `hbs` as the `hbs` has the condition to 
display the count only if the count is greater than 0.




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