From 534171db29715dd41a5b2b8cc00e15bb01f00db3 Mon Sep 17 00:00:00 2001
From: Michael Zanetti <michael_zanetti@gmx.net>
Date: Tue, 10 Aug 2021 16:29:43 +0200
Subject: [PATCH] Fix a possible crash in ThingClassesProxy

---
 libnymea-app/thingclassesproxy.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libnymea-app/thingclassesproxy.cpp b/libnymea-app/thingclassesproxy.cpp
index 0b164e47..749d0493 100644
--- a/libnymea-app/thingclassesproxy.cpp
+++ b/libnymea-app/thingclassesproxy.cpp
@@ -176,6 +176,9 @@ void ThingClassesProxy::setGroupByInterface(bool groupByInterface)
 
 ThingClass *ThingClassesProxy::get(int index) const
 {
+    if (!m_engine) {
+        return nullptr;
+    }
     return m_engine->thingManager()->thingClasses()->get(mapToSource(this->index(index, 0)).row());
 }