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[5.0.x] Fixed #34944 -- Made GeneratedField.output_field required.

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Regression in f333e3513e.

Backport of 5875f03ce6 from main
This commit is contained in:
Mariusz Felisiak
2023-11-13 05:33:25 +01:00
parent 5b1d0a6be0
commit ddbe5c86e8
9 changed files with 150 additions and 54 deletions
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12
docs/ref/models/fields.txt
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@@ -1243,7 +1243,7 @@ when :attr:`~django.forms.Field.localize` is ``False`` or
.. versionadded:: 5.0
.. class:: GeneratedField(expression, db_persist=None, output_field=None, **kwargs)
.. class:: GeneratedField(expression, output_field, db_persist=None, **kwargs)
A field that is always computed based on other fields in the model. This field
is managed and updated by the database itself. Uses the ``GENERATED ALWAYS``
@@ -1265,6 +1265,10 @@ materialized view.
the model (in the same database table). Generated fields cannot reference
other generated fields. Database backends can impose further restrictions.
.. attribute:: GeneratedField.output_field
A model field instance to define the field's data type.
.. attribute:: GeneratedField.db_persist
Determines if the database column should occupy storage as if it were a
@@ -1274,12 +1278,6 @@ materialized view.
PostgreSQL only supports persisted columns. Oracle only supports virtual
columns.
.. attribute:: GeneratedField.output_field
An optional model field instance to define the field's data type. This can
be used to customize attributes like the field's collation. By default, the
output field is derived from ``expression``.
.. admonition:: Refresh the data
Since the database always computed the value, the object must be reloaded