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| author | Mike Bayer <mike_mp@zzzcomputing.com> | 2014-11-24 18:49:32 -0500 |
|---|---|---|
| committer | Mike Bayer <mike_mp@zzzcomputing.com> | 2014-11-24 18:49:32 -0500 |
| commit | de11f9498258182cbb6668b72067ec3f43a90415 (patch) | |
| tree | d5d8aba789516b02391fa38d14085709ef86aca3 /lib/sqlalchemy/testing/plugin/plugin_base.py | |
| parent | ba926a09b493b37c88e7b435aaccc6b399574057 (diff) | |
| download | sqlalchemy-de11f9498258182cbb6668b72067ec3f43a90415.tar.gz | |
- The :meth:`.PropComparator.of_type` modifier has been
improved in conjunction with loader directives such as
:func:`.joinedload` and :func:`.contains_eager` such that if
two :meth:`.PropComparator.of_type` modifiers of the same
base type/path are encountered, they will be joined together
into a single "polymorphic" entity, rather than replacing
the entity of type A with the one of type B. E.g.
a joinedload of ``A.b.of_type(BSub1)->BSub1.c`` combined with
joinedload of ``A.b.of_type(BSub2)->BSub2.c`` will create a
single joinedload of ``A.b.of_type((BSub1, BSub2)) -> BSub1.c, BSub2.c``,
without the need for the ``with_polymorphic`` to be explicit
in the query.
fixes #3256
Diffstat (limited to 'lib/sqlalchemy/testing/plugin/plugin_base.py')
0 files changed, 0 insertions, 0 deletions