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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-09-25 22:31:16 -0400 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2020-10-31 13:44:53 -0400 |
| commit | 654b462d668a2ced4e87077b9babb2590acbf983 (patch) | |
| tree | 8b6023480423e990c9bbca7c280cb1cb58e012fc /lib/sqlalchemy/orm/session.py | |
| parent | 841eb216644202567ebddfc0badc51a3a35e98c3 (diff) | |
| download | sqlalchemy-review/mike_bayer/tutorial20.tar.gz | |
tutorial 2.0 WIPreview/mike_bayer/tutorial20
Add SelectBase.exists() method as it seems strange this is
not available already. The Exists construct itself does
not provide full SELECT-building capabilities so it makes
sense this should be used more like a scalar_subquery.
Make sure stream_results is getting set up when yield_per
is used, for 2.0 style statements as well. this was
hardcoded inside of Query.yield_per() and is now moved
to take place within QueryContext.
Change-Id: Icafcd4fd9b708772343d56edf40995c9e8f835d6
Diffstat (limited to 'lib/sqlalchemy/orm/session.py')
| -rw-r--r-- | lib/sqlalchemy/orm/session.py | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/lib/sqlalchemy/orm/session.py b/lib/sqlalchemy/orm/session.py index af70de101..2fc2ad68c 100644 --- a/lib/sqlalchemy/orm/session.py +++ b/lib/sqlalchemy/orm/session.py @@ -957,18 +957,8 @@ class Session(_SessionClassMethods): :ref:`session_committing` - - :param future: if True, use 2.0 style behavior for the - :meth:`_orm.Session.execute` method. Future mode includes the - following behaviors: - - * The :class:`_engine.Result` object returned by the - :meth:`_orm.Session.execute` method will return new-style tuple - :class:`_engine.Row` objects - - * The :meth:`_orm.Session.execute` method will invoke ORM style - queries given objects like :class:`_sql.Select`, - :class:`_sql.Update` and :class:`_sql.Delete` against ORM entities + :param future: if True, use 2.0 style transactional and engine + behavior. Future mode includes the following behaviors: * The :class:`_orm.Session` will not use "bound" metadata in order to locate an :class:`_engine.Engine`; the engine or engines in use @@ -984,9 +974,6 @@ class Session(_SessionClassMethods): flag on a :func:`_orm.relationship` will always assume "False" behavior. - The "future" flag is also available on a per-execution basis - using the :paramref:`_orm.Session.execute.future` flag. - .. versionadded:: 1.4 .. seealso:: @@ -1929,7 +1916,9 @@ class Session(_SessionClassMethods): def query(self, *entities, **kwargs): """Return a new :class:`_query.Query` object corresponding to this - :class:`.Session`.""" + :class:`_orm.Session`. + + """ return self._query_cls(entities, self, **kwargs) |