From 9aa030378488996e941b5d1d9e8de1279dbfe433 Mon Sep 17 00:00:00 2001
From: Henne Van Och <henne.van.och@cu.be>
Date: Wed, 29 Jun 2022 09:42:36 +0200
Subject: [PATCH] handle undefined key subscription_id

Happens when subscription is not yet processed
---
 src/Role/Subscriber.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Role/Subscriber.php b/src/Role/Subscriber.php
index 01d098c..4d6102f 100644
--- a/src/Role/Subscriber.php
+++ b/src/Role/Subscriber.php
@@ -158,7 +158,7 @@ protected function processUnsubscribed(ClientSession $session, UnsubscribedMessa
     protected function processEvent(ClientSession $session, EventMessage $msg)
     {
         foreach ($this->subscriptions as $key => $subscription) {
-            if ($subscription['subscription_id'] === $msg->getSubscriptionId()) {
+            if (isset($subscription['subscription_id']) && $subscription['subscription_id'] === $msg->getSubscriptionId()) {
                 call_user_func($subscription['callback'],
                     $msg->getArguments(), $msg->getArgumentsKw(), $msg->getDetails(), $msg->getPublicationId());
                 break;