Widget on DecimalField subclass ignored

[jeroen.pulles@…]

I have a subclass of DecimalField with a widget member set, like so:

class ParameterField(DecimalField):
    widget = ParameterWidget

This works in Django 1.5 (by way of the constructor of Field, I guess). Django 1.6 doesn't pick up the specialised widget. IntegerField does a setdefault on widget that I can't follow:

class IntegerField(Field):
...

    def __init__(self, max_value=None, min_value=None, *args, **kwargs):
        self.max_value, self.min_value = max_value, min_value
        kwargs.setdefault('widget', NumberInput if not kwargs.get('localize') else self.widget)
        super(IntegerField, self).__init__(*args, **kwargs)

Adding localize = False to the ParameterField class doesn't help because that doesn't make it appear in kwargs for IntegerField.

[Claude Paroz]

Suggested fix

[Simon Charette]

Patch looks RFC.

[Claude Paroz <claude@…>]

In 5a976b4bec79cdb6b75581be6478356fb13fda77:

Fixed #22245 -- Avoided widget overwrite in forms.IntegerField subclasses

Thanks Jeroen Pulles for the report and Simon Charette for the review.

[Claude Paroz <claude@…>]

In 1a2939bc26b7077e3196cea9bce52826ec7a6d9d:

[1.6.x] Fixed #22245 -- Avoided widget overwrite in forms.IntegerField subclasses

Thanks Jeroen Pulles for the report and Simon Charette for the review.
Backport of 5a976b4bec7 from master.