# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1432071528 -7200
# Node ID 48341bb56051c7d93792f197e5de300c8295b594
# Parent  abe337f26c5a55cbdce218c41c042215a99340f8
Remove additional recurrences for entire event cancellations.
Handle missing SEQUENCE and DTSTAMP details in received objects.

diff -r abe337f26c5a -r 48341bb56051 imiptools/handlers/person_outgoing.py
--- a/imiptools/handlers/person_outgoing.py	Tue May 19 21:47:59 2015 +0200
+++ b/imiptools/handlers/person_outgoing.py	Tue May 19 23:38:48 2015 +0200
@@ -138,6 +138,8 @@
         given_attendees = set(uri_values(self.obj.get_values("ATTENDEE")))
         cancel_entire_event = given_attendees == all_attendees
 
+        # Keep the event for the organiser.
+
         if cancel_entire_event:
             self.store.cancel_event(self.user, self.uid, self.recurrenceid)
 
@@ -152,8 +154,8 @@
         # Update the stored object with sequence information.
 
         if obj:
-            obj["SEQUENCE"] = self.obj.get_items("SEQUENCE")
-            obj["DTSTAMP"] = self.obj.get_items("DTSTAMP")
+            obj["SEQUENCE"] = self.obj.get_items("SEQUENCE") or []
+            obj["DTSTAMP"] = self.obj.get_items("DTSTAMP") or []
 
         # Set the complete event if not an additional occurrence. For any newly-
         # indicated occurrence, use the received event details.
@@ -169,6 +171,7 @@
         if update_freebusy:
             freebusy = self.store.get_freebusy(self.user)
             self.remove_from_freebusy(freebusy)
+            self.remove_freebusy_for_recurrences(freebusy)
 
             if cancel_entire_event or self.user in given_attendees:
                 self.store.set_freebusy(self.user, freebusy)