On Fri, Apr 10, 2020, 12:29 AM אורי <u...@speedy.net> wrote:
> Hi,
>
> We are using Django 2.2 and I want to upgrade to Django 3.0. We have a
> mixin (written in 2017) that add fields to forms:
>
> class LocalizedFirstLastNameMixin(object):
> def __init__(self, *args, **kwargs):
> self.language_code = kwargs.pop('language_code', 'en')
> super().__init__(*args, **kwargs)
> for loc_field in reversed(self.get_localized_fields()):
> self.fields[loc_field] =
> User._meta.get_field(loc_field).formfield()
> self.fields[loc_field].required = True
> self.fields.move_to_end(loc_field, last=False)
> self.initial[loc_field] = getattr(self.instance, loc_field, '')
>
> It works with Django versions up to 2.2. But when I upgrade to 3.0, I get
> this error message:
>
> AttributeError: 'dict' object has no attribute 'move_to_end'
>
> This function's info:
>
> '''Move an existing element to the end (or beginning if last==False).
>
> And it belongs to OrderedDict.
>
> So I guess we want these fields to be in the beginning of the form fields.
>
> Is there a change in the implementation of the fields in forms and how do
> I specify the order of fields? And if I change it, will it work in previous
> versions such as Django 2.2?
>
> Thanks,
> Uri.
> אורי
> u...@speedy.net
>
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> .
>
By chance did you change Python versions as well?
-Jorge
>
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