Fix error when classSubscriptions is undefined

sadortun · web-flow · commit 28fd1262fb05 · 2022-01-12T04:57:14.000-05:00
diff --git a/src/LiveQuery/ParseLiveQueryServer.js b/src/LiveQuery/ParseLiveQueryServer.js
@@ -928,7 +928,7 @@ class ParseLiveQueryServer {
     subscription.deleteClientSubscription(parseWebsocket.clientId, requestId);
     // If there is no client which is subscribing this subscription, remove it from subscriptions
     const classSubscriptions = this.subscriptions.get(className);
-    if (!subscription.hasSubscribingClient()) {
+    if (!subscription.hasSubscribingClient() && classSubscriptions) {
       classSubscriptions.delete(subscription.hash);
     }
     // If there is no subscriptions under this class, remove it from subscriptions

Original file line number	Diff line number	Diff line change
`@@ -928,7 +928,7 @@ class ParseLiveQueryServer {`
`928`	`928`	`subscription.deleteClientSubscription(parseWebsocket.clientId, requestId);`
`929`	`929`	`// If there is no client which is subscribing this subscription, remove it from subscriptions`
`930`	`930`	`const classSubscriptions = this.subscriptions.get(className);`
`931`		`- if (!subscription.hasSubscribingClient()) {`
	`931`	`+ if (!subscription.hasSubscribingClient() && classSubscriptions) {`
`932`	`932`	`classSubscriptions.delete(subscription.hash);`
`933`	`933`	`}`
`934`	`934`	`// If there is no subscriptions under this class, remove it from subscriptions`