diff --git a/synapse/storage/data_stores/main/room.py b/synapse/storage/data_stores/main/room.py
index 70137dfbe4..e6c10c6316 100644
--- a/synapse/storage/data_stores/main/room.py
+++ b/synapse/storage/data_stores/main/room.py
@@ -1020,6 +1020,26 @@ class RoomStore(RoomBackgroundUpdateStore, RoomWorkerStore, SearchStore):
logger.error("store_room with room_id=%s failed: %s", room_id, e)
raise StoreError(500, "Problem creating room.")
+ async def maybe_store_room_on_invite(self, room_id: str, room_version: RoomVersion):
+ """
+ When we receive an invite over federation, store the version of the room if we
+ don't already know the room version.
+ """
+ await self.db.simple_upsert(
+ desc="maybe_store_room_on_invite",
+ table="rooms",
+ keyvalues={"room_id": room_id},
+ values={},
+ insertion_values={
+ "room_version": room_version.identifier,
+ "is_public": False,
+ "creator": "",
+ },
+ # rooms has a unique constraint on room_id, so no need to lock when doing an
+ # emulated upsert.
+ lock=False,
+ )
+
@defer.inlineCallbacks
def set_room_is_public(self, room_id, is_public):
def set_room_is_public_txn(txn, next_id):
|
