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Split a storage function in two so that we don't have to do extra work.

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This commit is contained in:
Erik Johnston 2015-05-01 10:17:19 +01:00
parent 8be5284e91
commit 23c639ff32
3 changed files with 14 additions and 8 deletions
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4
synapse/federation/federation_server.py
View file

@ -417,13 +417,13 @@ class FederationServer(FederationBase):
pdu.internal_metadata.outlier = True
elif min_depth and pdu.depth > min_depth:
if get_missing and prevs - seen:
latest_tuples = yield self.store.get_latest_events_in_room(
latest = yield self.store.get_latest_event_ids_in_room(
pdu.room_id
)
# We add the prev events that we have seen to the latest
# list to ensure the remote server doesn't give them to us
latest = set(e_id for e_id, _, _ in latest_tuples)
latest = set(latest)
latest |= seen
missing_events = yield self.get_missing_events(

7
synapse/state.py
View file

@ -86,12 +86,7 @@ class StateHandler(object):
If `event_type` is specified, then the method returns only the one
event (or None) with that `event_type` and `state_key`.
"""
events = yield self.store.get_latest_events_in_room(room_id)
event_ids = [
e_id
for e_id, _, _ in events
]
event_ids = yield self.store.get_latest_event_ids_in_room(room_id)
cache = None
if self._state_cache is not None:

11
synapse/storage/event_federation.py
View file

@ -96,11 +96,22 @@ class EventFederationStore(SQLBaseStore):
room_id,
)
def get_latest_event_ids_in_room(self, room_id):
return self._simple_select_onecol(
table="event_forward_extremities",
keyvalues={
"room_id": room_id,
},
retcol="event_id",
desc="get_latest_events_in_room",
)
def _get_latest_events_in_room(self, txn, room_id):
sql = (
"SELECT e.event_id, e.depth FROM events as e "
"INNER JOIN event_forward_extremities as f "
"ON e.event_id = f.event_id "
"AND e.room_id = f.room_id "
"WHERE f.room_id = ?"
)