From 26140c08111da9833dd2eff0b5091494f253db46 Mon Sep 17 00:00:00 2001 From: Federico Caselli Date: Tue, 31 Aug 2021 23:03:18 +0200 Subject: Surface driver connection object when using a proxied dialect Improve the interface used by adapted drivers, like the asyncio ones, to access the actual connection object returned by the driver. The :class:`_engine._ConnectionRecord` and :class:`_engine._ConnectionFairy` now have two new attributes: * ``dbapi_connection`` always represents a DBAPI compatible object. For pep-249 drivers, this is the DBAPI connection as it always has been, previously accessed under the ``.connection`` attribute. For asyncio drivers that SQLAlchemy adapts into a pep-249 interface, the returned object will normally be a SQLAlchemy adaption object called :class:`_engine.AdaptedConnection`. * ``driver_connection`` always represents the actual connection object maintained by the third party pep-249 DBAPI or async driver in use. For standard pep-249 DBAPIs, this will always be the same object as that of the ``dbapi_connection``. For an asyncio driver, it will be the underlying asyncio-only connection object. The ``.connection`` attribute remains available and is now a legacy alias of ``.dbapi_connection``. Fixes: #6832 Change-Id: Ib72f97deefca96dce4e61e7c38ba430068d6a82e --- lib/sqlalchemy/dialects/postgresql/pg8000.py | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'lib/sqlalchemy/dialects/postgresql/pg8000.py') diff --git a/lib/sqlalchemy/dialects/postgresql/pg8000.py b/lib/sqlalchemy/dialects/postgresql/pg8000.py index 3d1051b7d..d42dd9560 100644 --- a/lib/sqlalchemy/dialects/postgresql/pg8000.py +++ b/lib/sqlalchemy/dialects/postgresql/pg8000.py @@ -433,8 +433,8 @@ class PGDialect_pg8000(PGDialect): level = level.replace("_", " ") # adjust for ConnectionFairy possibly being present - if hasattr(connection, "connection"): - connection = connection.connection + if hasattr(connection, "dbapi_connection"): + connection = connection.dbapi_connection if level == "AUTOCOMMIT": connection.autocommit = True @@ -498,8 +498,8 @@ class PGDialect_pg8000(PGDialect): def set_client_encoding(self, connection, client_encoding): # adjust for ConnectionFairy possibly being present - if hasattr(connection, "connection"): - connection = connection.connection + if hasattr(connection, "dbapi_connection"): + connection = connection.dbapi_connection cursor = connection.cursor() cursor.execute("SET CLIENT_ENCODING TO '" + client_encoding + "'") -- cgit v1.2.1