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# -*- coding: utf-8 -*-
# Copyright 2014, 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import SQLBaseStore, cached
from twisted.internet import defer
import logging
logger = logging.getLogger(__name__)
class ReceiptsStore(SQLBaseStore):
@defer.inlineCallbacks
def get_linearized_receipts_for_room(self, room_id, from_key, to_key):
def f(txn):
if from_key:
sql = (
"SELECT * FROM receipts_linearized WHERE"
" room_id = ? AND stream_id > ? AND stream_id <= ?"
)
txn.execute(
sql,
(room_id, from_key, to_key)
)
else:
sql = (
"SELECT * FROM receipts_linearized WHERE"
" room_id = ? AND stream_id <= ?"
)
txn.execute(
sql,
(room_id, to_key)
)
rows = self.cursor_to_dict(txn)
return rows
rows = yield self.runInteraction(
"get_linearized_receipts_for_room", f
)
result = {}
for row in rows:
result.setdefault(
row["event_id"], {}
).setdefault(
row["receipt_type"], []
).append(row["user_id"])
defer.returnValue(result)
def get_max_receipt_stream_id(self):
return self._receipts_id_gen.get_max_token(self)
@cached
@defer.inlineCallbacks
def get_graph_receipts_for_room(self, room_id):
rows = yield self._simple_select_list(
table="receipts_graph",
keyvalues={"room_id": room_id},
retcols=["receipt_type", "user_id", "event_id"],
desc="get_linearized_receipts_for_room",
)
result = {}
for row in rows:
result.setdefault(
row["user_id"], {}
).setdefault(
row["receipt_type"], []
).append(row["event_id"])
defer.returnValue(result)
def insert_linearized_receipt_txn(self, txn, room_id, receipt_type,
user_id, event_id, stream_id):
# We don't want to clobber receipts for more recent events, so we
# have to compare orderings of existing receipts
sql = (
"SELECT topological_ordering, stream_ordering, event_id FROM events"
" INNER JOIN receipts_linearized as r USING (event_id, room_id)"
" WHERE r.room_id = ? AND r.receipt_type = ? AND r.user_id = ?"
)
txn.execute(sql, (room_id, receipt_type, user_id))
results = txn.fetchall()
if results:
res = self._simple_select_one_txn(
txn,
table="events",
retcols=["topological_ordering", "stream_ordering"],
keyvalues={"event_id": event_id},
)
topological_ordering = int(res["topological_ordering"])
stream_ordering = int(res["stream_ordering"])
for to, so, _ in results:
if int(to) > topological_ordering:
return False
elif int(to) == topological_ordering and int(so) >= stream_ordering:
return False
self._simple_delete_txn(
txn,
table="receipts_linearized",
keyvalues={
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
}
)
self._simple_insert_txn(
txn,
table="receipts_linearized",
values={
"stream_id": stream_id,
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
"event_id": event_id,
}
)
return True
@defer.inlineCallbacks
def insert_receipt(self, room_id, receipt_type, user_id, event_ids):
if not event_ids:
return
if len(event_ids) == 1:
linearized_event_id = event_ids[0]
else:
# we need to points in graph -> linearized form.
def graph_to_linear(txn):
query = (
"SELECT event_id WHERE room_id = ? AND stream_ordering IN ("
" SELECT max(stream_ordering) WHERE event_id IN (%s)"
")"
) % (",".join(["?"] * len(event_ids)))
txn.execute(query, [room_id] + event_ids)
rows = txn.fetchall()
if rows:
return rows[0][0]
else:
# TODO: ARGH?!
return None
linearized_event_id = yield self.runInteraction(
"insert_receipt_conv", graph_to_linear
)
stream_id_manager = yield self._receipts_id_gen.get_next(self)
with stream_id_manager as stream_id:
have_persisted = yield self.runInteraction(
"insert_linearized_receipt",
self.insert_linearized_receipt_txn,
room_id, receipt_type, user_id, linearized_event_id,
stream_id=stream_id,
)
if not have_persisted:
defer.returnValue(None)
yield self.insert_graph_receipt(
room_id, receipt_type, user_id, event_ids
)
max_persisted_id = yield self._stream_id_gen.get_max_token(self)
defer.returnValue((stream_id, max_persisted_id))
def insert_graph_receipt(self, room_id, receipt_type,
user_id, event_ids):
return self.runInteraction(
"insert_graph_receipt",
self.insert_graph_receipt_txn,
room_id, receipt_type, user_id, event_ids,
)
def insert_graph_receipt_txn(self, txn, room_id, receipt_type,
user_id, event_ids):
self._simple_delete_txn(
txn,
table="receipts_graph",
keyvalues={
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
}
)
self._simple_insert_many_txn(
txn,
table="receipts_graph",
values=[
{
"room_id": room_id,
"receipt_type": receipt_type,
"user_id": user_id,
"event_id": event_id,
}
for event_id in event_ids
],
)
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