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Try to think about this logic

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This commit is contained in:
Eric Eastwood 2024-05-21 09:52:55 -05:00
parent 6dadfe9628
commit 9ffafe781d
1 changed files with 9 additions and 9 deletions
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18
synapse/handlers/sliding_sync.py
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@ -305,20 +305,20 @@ class SlidingSyncHandler:
sync_room_id_set.add(event.room_id)
# 2)
# TODO: Verify this logic is correct
for event in last_membership_change_by_room_id_after_to_token.values():
# 2a) Add back rooms that the user left after the `to_token`
if event.membership == Membership.LEAVE:
sync_room_id_set.add(event.room_id)
# 2b) Remove rooms that the user joined after the `to_token`
elif event.membership != Membership.LEAVE and (
# Make sure the user wasn't joined before the `to_token` at some point in time
last_membership_change_by_room_id_in_from_to_range.get(event.room_id)
is None
# Or at-least the last membership change in the from/to range was a leave event
or last_membership_change_by_room_id_in_from_to_range.get(
# 2b) Remove rooms that the user joined (hasn't left) after the `to_token`
elif (
event.membership != Membership.LEAVE
# We don't want to remove the the room if the user was still joined
# before the `to_token`.
and last_membership_change_by_room_id_in_from_to_range.get(
event.room_id
).membership
== Membership.LEAVE
)
is None
):
sync_room_id_set.discard(event.room_id)