Django 3 Web Development Cookbook - Fourth Edition

How to do it...

Execute the following steps to prepare for multilingual models:

1. In the core app, create model_fields.py with the following content:

# myproject/apps/core/model_fields.pyfrom django.conf import settingsfrom django.utils.translation import get_languagefrom django.utils import translationclass TranslatedField(object):    def __init__(self, field_name):        self.field_name = field_name    def __get__(self, instance, owner):        lang_code = translation.get_language()        if lang_code == settings.LANGUAGE_CODE:            # The fields of the default language are in the main               model            return getattr(instance, self.field_name)        else:            # The fields of the other languages are in the               translation            # model, but falls back to the main model            translations = instance.translations.filter( ...