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Generate historic pagination token for /messages when no ?from token provided (#12370)

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Eric Eastwood 2022-04-06 05:40:28 -05:00 • committed by GitHub
parent 573cd0f92f
commit 793d03e2c5
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6 changed files with 26 additions and 14 deletions
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18
synapse/storage/databases/main/stream.py
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@ -748,21 +748,23 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore):
"get_room_event_before_stream_ordering", _f
)
async def get_room_events_max_id(self, room_id: Optional[str] = None) -> str:
"""Returns the current token for rooms stream.
async def get_current_room_stream_token_for_room_id(
self, room_id: Optional[str] = None
) -> RoomStreamToken:
"""Returns the current position of the rooms stream.
By default, it returns the current global stream token. Specifying a
`room_id` causes it to return the current room specific topological
token.
By default, it returns a live token with the current global stream
token. Specifying a `room_id` causes it to return a historic token with
the room specific topological token.
"""
token = self.get_room_max_stream_ordering()
stream_ordering = self.get_room_max_stream_ordering()
if room_id is None:
return "s%d" % (token,)
return RoomStreamToken(None, stream_ordering)
else:
topo = await self.db_pool.runInteraction(
"_get_max_topological_txn", self._get_max_topological_txn, room_id
)
return "t%d-%d" % (topo, token)
return RoomStreamToken(topo, stream_ordering)
def get_stream_id_for_event_txn(
self,