diff --git a/synapse/events/snapshot.py b/synapse/events/snapshot.py
index f8d898c3b1..5ba01eeef9 100644
--- a/synapse/events/snapshot.py
+++ b/synapse/events/snapshot.py
@@ -80,9 +80,7 @@ class EventContext:
(type, state_key) -> event_id
- FIXME: what is this for an outlier? it seems ill-defined. It seems like
- it could be either {}, or the state we were given by the remote
- server, depending on $THINGS
+ For an outlier, this is {}
Note that this is a private attribute: it should be accessed via
``get_current_state_ids``. _AsyncEventContext impl calculates this
@@ -96,7 +94,7 @@ class EventContext:
(type, state_key) -> event_id
- FIXME: again, what is this for an outlier?
+ For an outlier, this is {}
As with _current_state_ids, this is a private attribute. It should be
accessed via get_prev_state_ids.
@@ -130,6 +128,14 @@ class EventContext:
delta_ids=delta_ids,
)
+ @staticmethod
+ def for_outlier():
+ """Return an EventContext instance suitable for persisting an outlier event"""
+ return EventContext(
+ current_state_ids={},
+ prev_state_ids={},
+ )
+
async def serialize(self, event: EventBase, store: "DataStore") -> dict:
"""Converts self to a type that can be serialized as JSON, and then
deserialized by `deserialize`
|
