diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index 8004aeb909..32cfd010a5 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -575,6 +575,26 @@ class RoomMemberWorkerStore(EventsWorkerStore):
count = yield self.runInteraction("did_forget_membership", f)
defer.returnValue(count == 0)
+ @defer.inlineCallbacks
+ def get_rooms_user_has_been_in(self, user_id):
+ """Get all rooms that the user has ever been in.
+
+ Args:
+ user_id (str)
+
+ Returns:
+ Deferred[set[str]]: Set of room IDs.
+ """
+
+ room_ids = yield self._simple_select_onecol(
+ table="room_memberships",
+ keyvalues={"membership": Membership.JOIN, "user_id": user_id},
+ retcol="room_id",
+ desc="get_rooms_user_has_been_in",
+ )
+
+ return set(room_ids)
+
class RoomMemberStore(RoomMemberWorkerStore):
def __init__(self, db_conn, hs):
diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py
index 386a9dbe14..a0465484df 100644
--- a/synapse/storage/stream.py
+++ b/synapse/storage/stream.py
@@ -833,7 +833,9 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore):
Returns:
Deferred[tuple[list[_EventDictReturn], str]]: Returns the results
as a list of _EventDictReturn and a token that points to the end
- of the result set.
+ of the result set. If no events are returned then the end of the
+ stream has been reached (i.e. there are no events between
+ `from_token` and `to_token`), or `limit` is zero.
"""
assert int(limit) >= 0
@@ -905,15 +907,15 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore):
only those before
direction(char): Either 'b' or 'f' to indicate whether we are
paginating forwards or backwards from `from_key`.
- limit (int): The maximum number of events to return. Zero or less
- means no limit.
+ limit (int): The maximum number of events to return.
event_filter (Filter|None): If provided filters the events to
those that match the filter.
Returns:
- tuple[list[dict], str]: Returns the results as a list of dicts and
- a token that points to the end of the result set. The dicts have
- the keys "event_id", "topological_ordering" and "stream_orderign".
+ tuple[list[FrozenEvent], str]: Returns the results as a list of
+ events and a token that points to the end of the result set. If no
+ events are returned then the end of the stream has been reached
+ (i.e. there are no events between `from_key` and `to_key`).
"""
from_key = RoomStreamToken.parse(from_key)
|
