moviewyrm/bookwyrm/migrations/0078_add_shelved_date.py

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# Generated by Django 3.2.4 on 2021-07-03 08:25
from django.db import migrations, models
import django.utils.timezone
def copy_created_date(app_registry, schema_editor):
db_alias = schema_editor.connection.alias
ShelfBook = app_registry.get_model("bookwyrm", "ShelfBook")
ShelfBook.objects.all().update(shelved_date=models.F("created_date"))
def do_nothing(app_registry, schema_editor):
pass
class Migration(migrations.Migration):
dependencies = [
("bookwyrm", "0077_auto_20210623_2155"),
]
operations = [
migrations.AlterModelOptions(
name="shelfbook",
options={"ordering": ("-shelved_date",)},
),
migrations.AddField(
model_name="shelfbook",
name="shelved_date",
field=models.DateTimeField(default=django.utils.timezone.now),
),
migrations.RunPython(copy_created_date, reverse_code=do_nothing),
]