summary refs log tree commit diff
path: root/synapse/storage
diff options
context:
space:
mode:
authorErik Johnston <erik@matrix.org>2017-02-02 16:50:28 +0000
committerErik Johnston <erik@matrix.org>2017-02-02 16:50:28 +0000
commitf8c407a13b04f906dc761bcf33992e05af219098 (patch)
tree0479c242f3d7df94437755296616e657a0a15858 /synapse/storage
parentUpdate changelog (diff)
parentMerge pull request #1877 from matrix-org/erikj/device_list_fixes (diff)
downloadsynapse-f8c407a13b04f906dc761bcf33992e05af219098.tar.xz
Merge branch 'develop' of github.com:matrix-org/synapse into release-v0.19.0
Diffstat (limited to 'synapse/storage')
-rw-r--r--synapse/storage/roommember.py17
1 files changed, 17 insertions, 0 deletions
diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py
index ee800d074f..249217e114 100644
--- a/synapse/storage/roommember.py
+++ b/synapse/storage/roommember.py
@@ -280,6 +280,23 @@ class RoomMemberStore(SQLBaseStore):
             user_id, membership_list=[Membership.JOIN],
         )
 
+    @cachedInlineCallbacks(max_entries=50000, cache_context=True, iterable=True)
+    def get_users_who_share_room_with_user(self, user_id, cache_context):
+        """Returns the set of users who share a room with `user_id`
+        """
+        rooms = yield self.get_rooms_for_user(
+            user_id, on_invalidate=cache_context.invalidate,
+        )
+
+        user_who_share_room = set()
+        for room in rooms:
+            user_ids = yield self.get_users_in_room(
+                room.room_id, on_invalidate=cache_context.invalidate,
+            )
+            user_who_share_room.update(user_ids)
+
+        defer.returnValue(user_who_share_room)
+
     def forget(self, user_id, room_id):
         """Indicate that user_id wishes to discard history for room_id."""
         def f(txn):