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-rw-r--r--lib/sqlalchemy/ext/horizontal_shard.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/sqlalchemy/ext/horizontal_shard.py b/lib/sqlalchemy/ext/horizontal_shard.py
index fe9bbaf02..220cdbfc8 100644
--- a/lib/sqlalchemy/ext/horizontal_shard.py
+++ b/lib/sqlalchemy/ext/horizontal_shard.py
@@ -186,8 +186,8 @@ class ShardedSession(Session):
if shard_id is None:
shard_id = self._choose_shard_and_assign(mapper, instance)
- if self.transaction is not None:
- return self.transaction.connection(mapper, shard_id=shard_id)
+ if self.in_transaction():
+ return self.get_transaction().connection(mapper, shard_id=shard_id)
else:
return self.get_bind(
mapper, shard_id=shard_id, instance=instance