diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index ae1ad56d9a..4e0e9ab59a 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -18,7 +18,7 @@ from twisted.internet import defer
from collections import namedtuple
from ._base import SQLBaseStore
-from synapse.util.caches.descriptors import cached
+from synapse.util.caches.descriptors import cached, cachedInlineCallbacks
from synapse.api.constants import Membership
from synapse.types import UserID
@@ -121,7 +121,7 @@ class RoomMemberStore(SQLBaseStore):
return self.get_rooms_for_user_where_membership_is(
user_id, [Membership.INVITE]
).addCallback(lambda invites: self._get_events([
- invites.event_id for invite in invites
+ invite.event_id for invite in invites
]))
def get_leave_and_ban_events_for_user(self, user_id):
@@ -160,7 +160,7 @@ class RoomMemberStore(SQLBaseStore):
def _get_rooms_for_user_where_membership_is_txn(self, txn, user_id,
membership_list):
- where_clause = "user_id = ? AND (%s)" % (
+ where_clause = "user_id = ? AND (%s) AND forgotten = 0" % (
" OR ".join(["membership = ?" for _ in membership_list]),
)
@@ -269,3 +269,70 @@ class RoomMemberStore(SQLBaseStore):
ret = len(room_id_lists.pop(0).intersection(*room_id_lists)) > 0
defer.returnValue(ret)
+
+ @defer.inlineCallbacks
+ def forget(self, user_id, room_id):
+ """Indicate that user_id wishes to discard history for room_id."""
+ def f(txn):
+ sql = (
+ "UPDATE"
+ " room_memberships"
+ " SET"
+ " forgotten = 1"
+ " WHERE"
+ " user_id = ?"
+ " AND"
+ " room_id = ?"
+ )
+ txn.execute(sql, (user_id, room_id))
+ yield self.runInteraction("forget_membership", f)
+ self.was_forgotten_at.invalidate_all()
+ self.did_forget.invalidate((user_id, room_id))
+
+ @cachedInlineCallbacks(num_args=2)
+ def did_forget(self, user_id, room_id):
+ """Returns whether user_id has elected to discard history for room_id.
+
+ Returns False if they have since re-joined."""
+ def f(txn):
+ sql = (
+ "SELECT"
+ " COUNT(*)"
+ " FROM"
+ " room_memberships"
+ " WHERE"
+ " user_id = ?"
+ " AND"
+ " room_id = ?"
+ " AND"
+ " forgotten = 0"
+ )
+ txn.execute(sql, (user_id, room_id))
+ rows = txn.fetchall()
+ return rows[0][0]
+ count = yield self.runInteraction("did_forget_membership", f)
+ defer.returnValue(count == 0)
+
+ @cachedInlineCallbacks(num_args=3)
+ def was_forgotten_at(self, user_id, room_id, event_id):
+ """Returns whether user_id has elected to discard history for room_id at event_id.
+
+ event_id must be a membership event."""
+ def f(txn):
+ sql = (
+ "SELECT"
+ " forgotten"
+ " FROM"
+ " room_memberships"
+ " WHERE"
+ " user_id = ?"
+ " AND"
+ " room_id = ?"
+ " AND"
+ " event_id = ?"
+ )
+ txn.execute(sql, (user_id, room_id, event_id))
+ rows = txn.fetchall()
+ return rows[0][0]
+ forgot = yield self.runInteraction("did_forget_membership_at", f)
+ defer.returnValue(forgot == 1)
|
