Django Admin: Using a custom widget for only one model field

Question

I have a DateTimeField field in my model. I wanted to display it as a checkbox widget in the Django admin site. To do this, I created a custom form widget. However, I do not

Answer 1

Override formfield_for_dbfield like thus:

class VehicleAdmin(admin.ModelAdmin):
    search_fields = ["name", "colour"]

    def formfield_for_dbfield(self, db_field, **kwargs):
        if db_field.name == 'colour':
            kwargs['widget'] = ColourChooserWidget
        return super(VehicleAdmin, self).formfield_for_dbfield(db_field,**kwargs)

(credit to http://www.kryogenix.org/days/2008/03/28/overriding-a-single-field-in-the-django-admin-using-newforms-admin/ )