mirror of
https://github.com/sqlalchemy/sqlalchemy.git
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Federico Caselli
fb81f9c8d9
Also replace http://pypi.python.org/pypi with https://pypi.org/project Change-Id: I84b5005c39969a82140706472989f2a30b0c7685
19 lines
758 B
Python
19 lines
758 B
Python
"""
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Illustrates various methods of associating multiple types of
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parents with a particular child object.
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The examples all use the declarative extension along with
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declarative mixins. Each one presents the identical use
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case at the end - two classes, ``Customer`` and ``Supplier``, both
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subclassing the ``HasAddresses`` mixin, which ensures that the
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parent class is provided with an ``addresses`` collection
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which contains ``Address`` objects.
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The :viewsource:`.discriminator_on_association` and :viewsource:`.generic_fk` scripts
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are modernized versions of recipes presented in the 2007 blog post
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`Polymorphic Associations with SQLAlchemy <https://techspot.zzzeek.org/2007/05/29/polymorphic-associations-with-sqlalchemy/>`_.
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.. autosource::
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""" # noqa
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