I campi name, slug e description (pre-esistenti) devono essere tradotti

Commentato ProductAdmin (sostituito con pass)

Rinominati i campi field --> old_field in Product

Creata migrazione "product_rename_old_field"

Product derivato da TranslatableBaseModel anziche' BaseModel

introdotti i campi "translations":

translations = TranslatedFields(
    name = models.CharField(max_length=1024, verbose_name=_("Name")),
    slug = models.SlugField(_("Slug"), max_length=255, unique=True),
    description = models.TextField(blank=True, verbose_name=_("Description")),

    meta = {'unique_together': [('language_code', 'slug')]},
)

Creata migrazione "product_rename_add_translation_fields"

Fix migrazione precedente:

migrations.CreateModel(
    name='Product',
    ...
    bases=(parler.models.TranslatableModelMixin, models.Model),
),

Creata data migration "product_migrate_translatable_fields":

from django.db import migrations
from django.conf import settings


def forwards_func(apps, schema_editor):
    MyModel = apps.get_model('backend', 'Product')
    MyModelTranslation = apps.get_model('backend', 'ProductTranslation')

    for object in MyModel.objects.all():
        MyModelTranslation.objects.create(
            master_id=object.pk,
            language_code=settings.LANGUAGE_CODE,
            name=object.old_name,
            slug=object.old_slug,
            description=object.old_description,
        )


class Migration(migrations.Migration):

    dependencies = [
        ('backend', '0003_product_add_translation_fields'),
    ]

    operations = [
        migrations.RunPython(forwards_func),
    ]

Commentati i campi "old_field" e creata migrazione "product_remove_old_fields"

ProductAdmin derivata da TranslatableBaseModelAdmin anziche' BaseModelAdmin

In ProductAdmin, utilizzato metodo get_prepopulated_fields() anziche' attributo prepopulated_fields

Eseguite migrazioni