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https://github.com/sqlalchemy/sqlalchemy.git
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Mike Bayer
40f8aadd58
- added READMEs to all examples in each __init__.py and added to sphinx documentation - added versioning example - removed vertical/vertical.py, the dictlikes are more straightforward
10 lines
624 B
Python
10 lines
624 B
Python
"""
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Illustrates polymorphic associations, a method of associating a particular child object with many different types of parent object.
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This example is based off the original blog post at `<http://techspot.zzzeek.org/?p=13>`_ and illustrates three techniques:
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* ``poly_assoc.py`` - imitates the non-foreign-key schema used by Ruby on Rails' Active Record.
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* ``poly_assoc_fk.py`` - Adds a polymorphic association table so that referential integrity can be maintained.
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* ``poly_assoc_generic.py`` - further automates the approach of ``poly_assoc_fk.py`` to also generate the association table definitions automatically.
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""" |