diff options
| -rw-r--r-- | synapse/storage/client_ips.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/synapse/storage/client_ips.py b/synapse/storage/client_ips.py index 71e5ea112f..5bed255eb2 100644 --- a/synapse/storage/client_ips.py +++ b/synapse/storage/client_ips.py @@ -90,6 +90,8 @@ class ClientIpStore(background_updates.BackgroundUpdateStore): are (user_id, device_id) tuples. The values are also dicts, with keys giving the column names """ + if not devices: + defer.returnValue({}) res = yield self.runInteraction( "get_last_client_ip_by_device", @@ -110,6 +112,9 @@ class ClientIpStore(background_updates.BackgroundUpdateStore): @classmethod def _get_last_client_ip_by_device_txn(cls, txn, devices, retcols): + if not devices: + return [] + where_clauses = [] bindings = [] for (user_id, device_id) in devices: |