MatrixSynapse/synapse/storage/databases/main/room_batch.py

39 lines
1.3 KiB
Python

# Copyright 2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import Optional
from synapse.storage._base import SQLBaseStore
class RoomBatchStore(SQLBaseStore):
async def get_insertion_event_by_batch_id(
self, room_id: str, batch_id: str
) -> Optional[str]:
"""Retrieve a insertion event ID.
Args:
batch_id: The batch ID of the insertion event to retrieve.
Returns:
The event_id of an insertion event, or None if there is no known
insertion event for the given insertion event.
"""
return await self.db_pool.simple_select_one_onecol(
table="insertion_events",
keyvalues={"room_id": room_id, "next_batch_id": batch_id},
retcol="event_id",
allow_none=True,
)