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Fixed #36070 -- Clarified model validation behavior for composite pks.

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Jacob Walls 2025-01-14 16:44:17 +01:00 committed by Sarah Boyce
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commit de9f46d707
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docs/topics/composite-primary-key.txt
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@ -186,6 +186,16 @@ field :exc:`.FieldError`.
:attr:`.Field.editable` to ``False`` on all primary key fields to exclude
them from ModelForms.
Composite primary keys in model validation
==========================================
Since ``pk`` is only a virtual field, including ``pk`` as a field name in the
``exclude`` argument of :meth:`.Model.clean_fields` has no effect. To exclude
the composite primary key fields from
:ref:`model validation <validating-objects>`, specify each field individually.
:meth:`.Model.validate_unique` can still be called with ``exclude={"pk"}`` to
skip uniqueness checks.
Building composite primary key ready applications
=================================================