Avoid resetting state on rejected events

When we get a rejected event, give it the same state_group as its prev_event,
rather than no state_group at all.

This should fix https://github.com/matrix-org/synapse/issues/1935.
This commit is contained in:
Richard van der Hoff 2017-03-17 14:30:16 +00:00
parent 5068fb16a5
commit 0c01f829ae
2 changed files with 14 additions and 4 deletions

View file

@ -645,6 +645,10 @@ class EventsStore(SQLBaseStore):
events_and_contexts=events_and_contexts,
)
# Insert into the state_groups, state_groups_state, and
# event_to_state_groups tables.
self._store_mult_state_groups_txn(txn, events_and_contexts)
# _store_rejected_events_txn filters out any events which were
# rejected, and returns the filtered list.
events_and_contexts = self._store_rejected_events_txn(
@ -1075,10 +1079,6 @@ class EventsStore(SQLBaseStore):
],
)
# Insert into the state_groups, state_groups_state, and
# event_to_state_groups tables.
self._store_mult_state_groups_txn(txn, events_and_contexts)
# Update the event_forward_extremities, event_backward_extremities and
# event_edges tables.
self._handle_mult_prev_events(

View file

@ -136,6 +136,16 @@ class StateStore(SQLBaseStore):
continue
if context.current_state_ids is None:
# AFAIK, this can never happen
logger.error(
"Non-outlier event %s had current_state_ids==None",
event.event_id)
continue
# if the event was rejected, just give it the same state as its
# predecessor.
if context.rejected:
state_groups[event.event_id] = context.prev_group
continue
state_groups[event.event_id] = context.state_group