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Implement new replace_state and changed prev_state

Browse source 
`prev_state` is now a list of previous state ids, similiar to
prev_events. `replace_state` now points to what we think was replaced.
This commit is contained in:
Erik Johnston 2014-11-06 15:10:55 +00:00
parent 3791b75000
commit 4317c8e583
13 changed files with 219 additions and 127 deletions
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92
synapse/storage/__init__.py
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@ -242,8 +242,8 @@ class DataStore(RoomMemberStore, RoomStore,
"state_key": event.state_key,
}
if hasattr(event, "prev_state"):
vals["prev_state"] = event.prev_state
if hasattr(event, "replaces_state"):
vals["prev_state"] = event.replaces_state
self._simple_insert_txn(txn, "state_events", vals)
@ -258,6 +258,40 @@ class DataStore(RoomMemberStore, RoomStore,
}
)
for e_id, h in event.prev_state:
self._simple_insert_txn(
txn,
table="event_edges",
values={
"event_id": event.event_id,
"prev_event_id": e_id,
"room_id": event.room_id,
"is_state": 1,
},
or_ignore=True,
)
if not backfilled:
self._simple_insert_txn(
txn,
table="state_forward_extremities",
values={
"event_id": event.event_id,
"room_id": event.room_id,
"type": event.type,
"state_key": event.state_key,
}
)
for prev_state_id, _ in event.prev_state:
self._simple_delete_txn(
txn,
table="state_forward_extremities",
keyvalues={
"event_id": prev_state_id,
}
)
for hash_alg, hash_base64 in event.hashes.items():
hash_bytes = decode_base64(hash_base64)
self._store_event_content_hash_txn(
@ -357,7 +391,7 @@ class DataStore(RoomMemberStore, RoomStore,
],
)
def snapshot_room(self, room_id, user_id, state_type=None, state_key=None):
def snapshot_room(self, event):
"""Snapshot the room for an update by a user
Args:
room_id (synapse.types.RoomId): The room to snapshot.
@ -368,16 +402,29 @@ class DataStore(RoomMemberStore, RoomStore,
synapse.storage.Snapshot: A snapshot of the state of the room.
"""
def _snapshot(txn):
membership_state = self._get_room_member(txn, user_id, room_id)
prev_events = self._get_latest_events_in_room(txn, room_id)
prev_events = self._get_latest_events_in_room(
txn,
event.room_id
)
prev_state = None
state_key = None
if hasattr(event, "state_key"):
state_key = event.state_key
prev_state = self._get_latest_state_in_room(
txn,
event.room_id,
type=event.type,
state_key=state_key,
)
return Snapshot(
store=self,
room_id=room_id,
user_id=user_id,
room_id=event.room_id,
user_id=event.user_id,
prev_events=prev_events,
membership_state=membership_state,
state_type=state_type,
prev_state=prev_state,
state_type=event.type,
state_key=state_key,
)
@ -400,30 +447,29 @@ class Snapshot(object):
"""
def __init__(self, store, room_id, user_id, prev_events,
membership_state, state_type=None, state_key=None,
prev_state_pdu=None):
prev_state, state_type=None, state_key=None):
self.store = store
self.room_id = room_id
self.user_id = user_id
self.prev_events = prev_events
self.membership_state = membership_state
self.prev_state = prev_state
self.state_type = state_type
self.state_key = state_key
self.prev_state_pdu = prev_state_pdu
def fill_out_prev_events(self, event):
if hasattr(event, "prev_events"):
return
if not hasattr(event, "prev_events"):
event.prev_events = [
(event_id, hashes)
for event_id, hashes, _ in self.prev_events
]
event.prev_events = [
(event_id, hashes)
for event_id, hashes, _ in self.prev_events
]
if self.prev_events:
event.depth = max([int(v) for _, _, v in self.prev_events]) + 1
else:
event.depth = 0
if self.prev_events:
event.depth = max([int(v) for _, _, v in self.prev_events]) + 1
else:
event.depth = 0
if not hasattr(event, "prev_state") and self.prev_state is not None:
event.prev_state = self.prev_state
def schema_path(schema):