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# -*- coding: utf-8 -*-
# Copyright 2014 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
from twisted.internet import defer
from collections import namedtuple
StateGroup = namedtuple("StateGroup", ("group", "state"))
class StateStore(SQLBaseStore):
@defer.inlineCallbacks
def get_state_groups(self, event_ids):
groups = set()
for event_id in event_ids:
group = yield self._simple_select_one_onecol(
table="event_to_state_groups",
keyvalues={"event_id": event_id},
retcol="state_group",
allow_none=True,
)
if group:
groups.add(group)
res = []
for group in groups:
state_ids = yield self._simple_select_onecol(
table="state_groups_state",
keyvalues={"state_group": group},
retcol="event_id",
)
state = []
for state_id in state_ids:
s = yield self.get_event(
state_id,
allow_none=True,
)
if s:
state.append(s)
res.append(StateGroup(group, state))
defer.returnValue(res)
def store_state_groups(self, event):
return self.runInteraction(
self._store_state_groups_txn, event
)
def _store_state_groups_txn(self, txn, event):
state_group = event.state_group
if not state_group:
state_group = self._simple_insert_txn(
txn,
table="state_groups",
values={
"room_id": event.room_id,
"event_id": event.event_id,
}
)
for state in event.state_events.values():
self._simple_insert_txn(
txn,
table="state_groups_state",
values={
"state_group": state_group,
"room_id": state.room_id,
"type": state.type,
"state_key": state.state_key,
"event_id": state.event_id,
}
)
self._simple_insert_txn(
txn,
table="event_to_state_groups",
values={
"state_group": state_group,
"event_id": event.event_id,
}
)
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