Files
ArchiveBox/archivebox/core/migrations/0040_archiveresult_snapshot.py

35 lines
1.5 KiB
Python

# Generated by Django 5.0.6 on 2024-08-18 06:46
import django.db.models.deletion
from django.db import migrations, models
def update_archiveresult_snapshot_ids(apps, schema_editor):
ArchiveResult = apps.get_model("core", "ArchiveResult")
Snapshot = apps.get_model("core", "Snapshot")
num_total = ArchiveResult.objects.all().count()
print(f' Updating {num_total} ArchiveResult.snapshot_id values in place... (may take an hour or longer for large collections...)')
for idx, result in enumerate(ArchiveResult.objects.all().only('snapshot_old_id').iterator(chunk_size=5000)):
assert result.snapshot_old_id
snapshot = Snapshot.objects.only('id').get(old_id=result.snapshot_old_id)
result.snapshot_id = snapshot.id
result.save(update_fields=["snapshot_id"])
assert str(result.snapshot_id) == str(snapshot.id)
if idx % 5000 == 0:
print(f'Migrated {idx}/{num_total} ArchiveResult objects...')
class Migration(migrations.Migration):
dependencies = [
('core', '0039_rename_snapshot_archiveresult_snapshot_old'),
]
operations = [
migrations.AddField(
model_name='archiveresult',
name='snapshot',
field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='archiveresults', to='core.snapshot', to_field='id'),
),
migrations.RunPython(update_archiveresult_snapshot_ids, reverse_code=migrations.RunPython.noop),
]