UPD: dav_registration: display canceled state of events

dav_events/models/event.py

@@ -354,6 +354,9 @@ class Event(models.Model):
         today = datetime.date.today()
         return self.deadline and self.deadline < today
 
+    def is_canceled(self):
+        return self.workflow.has_reached_status('canceled')
+
     def get_number(self):
         return self.workflow.get_number()