Add a comment explaining allow_none

This commit is contained in:
Mark Haines 2016-07-08 15:57:06 +01:00
parent 10c843fcfb
commit dfde67a6fe

View file

@ -128,6 +128,8 @@ class RegistrationStore(SQLBaseStore):
try:
if was_guest:
# Ensure that the guest user actually exists
# ``allow_none=False`` makes this raise an exception
# if the row isn't in the database.
self._simple_select_one_txn(
txn,
"users",