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Merge pull request #965 from matrix-org/kegan/comment-push-actions-fn

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Comment get_unread_push_actions_for_user_in_range function
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Kegsay 2016-07-28 17:27:28 +01:00 committed by GitHub
commit 328ad6901d
1 changed files with 26 additions and 2 deletions
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28
synapse/storage/event_push_actions.py
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@ -119,9 +119,28 @@ class EventPushActionsStore(SQLBaseStore):
@defer.inlineCallbacks
def get_unread_push_actions_for_user_in_range(self, user_id,
min_stream_ordering,
max_stream_ordering=None,
max_stream_ordering,
limit=20):
"""Get a list of the most recent unread push actions for a given user,
within the given stream ordering range.
Args:
user_id (str)
min_stream_ordering
max_stream_ordering
limit (int)
Returns:
A promise which resolves to a list of dicts with the keys "event_id",
"room_id", "stream_ordering", "actions", "received_ts".
The list will have between 0~limit entries.
"""
# find rooms that have a read receipt in them and return the most recent
# push actions
def get_after_receipt(txn):
# XXX: Do we really need to GROUP BY user_id on the inner SELECT?
# XXX: NATURAL JOIN obfuscates which columns are being joined on the
# inner SELECT (the room_id and event_id), can we
# INNER JOIN ... USING instead?
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions, "
"e.received_ts "
@ -160,7 +179,12 @@ class EventPushActionsStore(SQLBaseStore):
"get_unread_push_actions_for_user_in_range", get_after_receipt
)
# There are rooms with push actions in them but you don't have a read receipt in
# them e.g. rooms you've been invited to, so get push actions for rooms which do
# not have read receipts in them too.
def get_no_receipt(txn):
# XXX: Does the inner SELECT really need to select from the events table?
# We're just extracting the room_id, so isn't receipts_linearized enough?
sql = (
"SELECT ep.event_id, ep.room_id, ep.stream_ordering, ep.actions,"
" e.received_ts"
@ -198,7 +222,7 @@ class EventPushActionsStore(SQLBaseStore):
# Now sort it so it's ordered correctly, since currently it will
# contain results from the first query, correctly ordered, followed
# by results from the second query, but we want them all ordered
# by received_ts
# by received_ts (most recent first)
notifs.sort(key=lambda r: -(r['received_ts'] or 0))
# Now return the first `limit`