Newsbenachrichtigungen Bug behoben wenn auf eine News geklickt wird, die nicht mehr existiert. Hier werden jetzt alle Benachrichtigungen mit dieser News gelöscht. Gut Nacht!

news/views.py

@@ -116,9 +116,10 @@ class NewsDeleteView(LoginRequiredMixin, DeleteView):
 	
 @login_required
 def NewsSingle(request, pk):
-	news = News.objects.get(pk=pk)
+	news = News.objects.get(pk=pk)	
 	context = {
 		'active_link':'newsmanagement',
 		'news' : news
-	}
+	}			
+	
 	return render(request, 'news/news_single.html', context)

users/signals.py

@@ -89,6 +89,12 @@ def adjust_group_notifications(instance, action, reverse, model, pk_set, using,
 					)
     
 # SIGNAL FOR NEWS
+
+# Deletes all Notifications added to to delete news
+@receiver(pre_delete, sender=News)
+def del_news_notifications(sender, instance, **kwargs):
+	UserNotification.objects.filter(elementid=instance.pk).delete()	
+
 @receiver(post_save, sender=News)
 def save_news(sender, instance, **kwargs):
 	if(kwargs["created"]):