# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1423585869 -3600
# Node ID a03710d74519c49acccd6138b052766bd5860921
# Parent  9f4fbe205b683c164137359a2866a7e31a0180fc
Fixed the outgoing handler to not completely cancel events unless all attendees
have been uninvited.

diff -r 9f4fbe205b68 -r a03710d74519 imiptools/handlers/person_outgoing.py
--- a/imiptools/handlers/person_outgoing.py	Tue Feb 10 17:30:13 2015 +0100
+++ b/imiptools/handlers/person_outgoing.py	Tue Feb 10 17:31:09 2015 +0100
@@ -21,7 +21,7 @@
 """
 
 from imiptools.content import Handler
-from imiptools.data import uri_item
+from imiptools.data import uri_dict, uri_item, uri_values
 from imiptools.dates import get_default_timezone
 from imiptools.profile import Preferences
 
@@ -102,13 +102,30 @@
 
         identity, attr = item
 
-        # Store the object, updating any sequence information.
+        # Only cancel the event completely if all attendees are given.
+
+        obj = self.get_object(identity)
 
-        self.store.set_event(identity, self.uid, self.obj.to_node())
+        attendees = uri_dict(obj.get_value_map("ATTENDEE"))
+        all_attendees = set(attendees.keys())
+        given_attendees = set(uri_values(self.obj.get_values("ATTENDEE")))
+
+        if given_attendees == all_attendees:
+            self.store.cancel_event(identity, self.uid)
 
-        # Cancel the event.
+        # Otherwise, remove the given attendees and update the event.
+
+        else:
+            for attendee in given_attendees:
+                del attendees[attendee]
+            obj["ATTENDEE"] = attendees.items()
 
-        self.store.cancel_event(identity, self.uid)
+        # Update the stored object with sequence information.
+
+        obj["SEQUENCE"] = self.obj.get_items("SEQUENCE")
+        obj["DTSTAMP"] = self.obj.get_items("DTSTAMP")
+
+        self.store.set_event(identity, self.uid, obj.to_node())
 
         # Remove any associated request.