Internationalization does not localize functional model choices

[Nima]

Given a lazy/functional choice generator for a model, Django's internationalization cannot fully comprehend the lazy localizable text generated by the function.

Imagine a base class:

# gettext_lazy also does not work
from django.utils.translation import gettext as _

class SelectableModelField:
    @classmethod
    def make_choices(cls):
        return [(value, _(key.replace('_', ' '))) for (key, value) in vars(cls).items() 
                if not (key[-1] + key[0]).__contains__('_')]

    bool_choices = ((True, 'Yes'), (False, 'No'))

which is inherited by:

class User(models.Model):
    class __UserType__(SelectableModelField):
        basic = 0
        premium = 1
    
    user_type = models.PositiveSmallIntegerField(choices=__UserType__.make_choices())

the django.po file will not contain the functionally-generated choices after running python manage.py makemessages -l ...

[Mariusz Felisiak]

Thanks for this ticket, however I don't think it's feasible (not only in Django but in general). You can only translate a fixed list of strings.