Changes on server

- bugfixes in gcal callback
- requirements txt

eventplanner/models.py

@@ -132,6 +132,12 @@ class EventParticipation( models.Model ):
     def get_username(self):
         return self.user.username
     
+    def save( self, *args, **kwargs ):
+	prev = EventParticipation.objects.get( event = self.event, user = self.user )
+	if prev.status != self.status or prev.comment != self.comment:
+	    super(EventParticipation,self).save( *args,**kwargs)
+
+
     @staticmethod
     def hasUserSetParticipationForAllEvents( user ):
         if not EventParticipation.isMember(user):
@@ -177,4 +183,4 @@ class EventParticipation( models.Model ):
         )
             
         
-        
+