Marshmallow-sqlalchemy

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Features:

- Support for compound primary keys. Thanks :user:`jmcarp`.

Other changes:

- Supports marshmallow>=2.0.0.

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- Add ``instance`` argument to ``ModelSchema`` constructor and ``ModelSchema.load`` which allows for updating existing DB rows (:issue:`26`). Thanks :user:`sssilver` for reporting and :user:`jmcarp` for the patch.
- Don't autogenerate fields that are in ``Meta.exclude`` (:issue:`27`). Thanks :user:`jmcarp`.
- Raise ``ModelConversionError`` if converting properties whose column don't define a ``python_type``. Thanks :user:`jmcarp`.
- *Backwards-incompatible*: ``ModelSchema.make_object`` is removed in favor of decorated ``make_instance`` method for compatibility with marshmallow>=2.0.0rc2.

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Bug fixes:

- Now compatible with marshmallow>=2.0.0rc1.
- Correctly pass keyword arguments from ``field_for`` to generated ``List`` fields (:issue:`25`). Thanks :user:`sssilver` for reporting.

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Features:

- Add ``TableSchema`` for generating ``Schemas`` from tables (:issue:`4`). Thanks :user:`jmcarp`.

Bug fixes:

- Allow ``session`` to be passed to ``ModelSchema.validate``, since it requires it. Thanks :user:`dpwrussell`.
- When serializing, don't skip overriden fields that are part of a polymorphic hierarchy (:issue:`18`). Thanks again :user:`dpwrussell`.

Support:

- Docs: Add new recipe for automatic generation of schemas. Thanks :user:`dpwrussell`.

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Features:

- *Backwards-incompatible*: Relationships are (de)serialized by a new, more efficient ``Related`` column (:issue:`7`). Thanks :user:`jmcarp`.
- Improve support for MySQL types (:issue:`1`). Thanks :user:`rmackinnon`.
- Improve support for Postgres ARRAY types (:issue:`6`). Thanks :user:`jmcarp`.
- ``ModelSchema`` no longer requires the ``sqla_session`` class Meta option. A ``Session`` can be passed to the constructor or to the ``ModelSchema.load`` method (:issue:`11`). Thanks :user:`dtheodor` for the suggestion.

Bug fixes:

- Null foreign keys are serialized correctly as ``None`` (:issue:`8`). Thanks :user:`mitchej123`.
- Properly handle a relationship specifies ``uselist=False`` (:issue:`17`). Thanks :user:`dpwrussell`.

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Features:

- Add ``field_for`` function for generating marshmallow Fields from SQLAlchemy mapped class properties.

Support:

- Docs: Add "Overriding generated fields" section to "Recipes".