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Allow users that have left a room to get the messages that happend in the room before they left

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This commit is contained in:
Mark Haines 2015-09-09 17:31:09 +01:00
parent 3c166a24c5
commit 09cb5c7d33
2 changed files with 45 additions and 5 deletions
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19
synapse/storage/stream.py
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@ -386,7 +386,24 @@ class StreamStore(SQLBaseStore):
table="events",
keyvalues={"event_id": event_id},
retcol="stream_ordering",
).addCallback(lambda stream_ordering: "s%d" % (stream_ordering,))
).addCallback(lambda row: "s%d" % (row,))
def get_topological_token_for_event(self, event_id):
"""The stream token for an event
Args:
event_id(str): The id of the event to look up a stream token for.
Raises:
StoreError if the event wasn't in the database.
Returns:
A deferred "t%d-%d" topological token.
"""
return self._simple_select_one(
table="events",
keyvalues={"event_id": event_id},
retcols=("stream_ordering", "topological_ordering"),
).addCallback(lambda row: "t%d-%d" % (
row["topological_ordering"], row["stream_ordering"],)
)
def _get_max_topological_txn(self, txn):
txn.execute(