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Merge pull request #4415 from matrix-org/anoa/full_search_upgraded_rooms

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Ability to search entire room history after upgrading room
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Andrew Morgan 2019-01-25 10:49:58 +00:00 • committed by GitHub
commit b1b6dba2d2
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24
synapse/storage/state.py
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@ -437,6 +437,30 @@ class StateGroupWorkerStore(EventsWorkerStore, SQLBaseStore):
create_event = yield self.get_event(create_id)
defer.returnValue(create_event.content.get("room_version", "1"))
@defer.inlineCallbacks
def get_room_predecessor(self, room_id):
"""Get the predecessor room of an upgraded room if one exists.
Otherwise return None.
Args:
room_id (str)
Returns:
Deferred[unicode|None]: predecessor room id
"""
state_ids = yield self.get_current_state_ids(room_id)
create_id = state_ids.get((EventTypes.Create, ""))
# If we can't find the create event, assume we've hit a dead end
if not create_id:
defer.returnValue(None)
# Retrieve the room's create event
create_event = yield self.get_event(create_id)
# Return predecessor if present
defer.returnValue(create_event.content.get("predecessor", None))
@cached(max_entries=100000, iterable=True)
def get_current_state_ids(self, room_id):
"""Get the current state event ids for a room based on the