moviewyrm/bookwyrm/migrations/0044_auto_20210207_1924.py

# Generated by Django 3.0.7 on 2021-02-07 19:24

import bookwyrm.models.fields
from django.conf import settings
from django.db import migrations
import django.db.models.deletion

def set_user(app_registry, schema_editor):
    db_alias = schema_editor.connection.alias
    shelfbook = app_registry.get_model('bookwyrm', 'ShelfBook')
    for item in shelfbook.objects.using(db_alias).filter(user__isnull=True):
        item.user = item.shelf.user
        try:
            item.save(broadcast=False)
        except TypeError:
            item.save()


class Migration(migrations.Migration):

    dependencies = [
        ('bookwyrm', '0043_auto_20210204_2223'),
    ]

    operations = [
        migrations.RunPython(set_user, lambda x, y: None),
        migrations.AlterField(
            model_name='shelfbook',
            name='user',
            field=bookwyrm.models.fields.ForeignKey(default=2, on_delete=django.db.models.deletion.PROTECT, to=settings.AUTH_USER_MODEL),
            preserve_default=False,
        ),
    ]