netbox/netbox/dcim/migrations/0200_populate_mac_addresses.py

54 lines
1.7 KiB
Python

import django.db.models.deletion
from django.db import migrations, models
def populate_mac_addresses(apps, schema_editor):
ContentType = apps.get_model('contenttypes', 'ContentType')
Interface = apps.get_model('dcim', 'Interface')
MACAddress = apps.get_model('dcim', 'MACAddress')
db_alias = schema_editor.connection.alias
interface_ct = ContentType.objects.get_for_model(Interface)
mac_addresses = [
MACAddress(
mac_address=interface.mac_address,
assigned_object_type=interface_ct,
assigned_object_id=interface.pk
)
for interface in Interface.objects.filter(mac_address__isnull=False)
]
MACAddress.objects.using(db_alias).bulk_create(mac_addresses, batch_size=100)
# TODO: Optimize interface updates
for mac_address in mac_addresses:
Interface.objects.using(db_alias).filter(
pk=mac_address.assigned_object_id
).update(
primary_mac_address=mac_address
)
class Migration(migrations.Migration):
dependencies = [
('dcim', '0199_macaddress'),
]
operations = [
migrations.AddField(
model_name='interface',
name='primary_mac_address',
field=models.OneToOneField(
blank=True,
null=True,
on_delete=django.db.models.deletion.SET_NULL,
related_name='+',
to='dcim.macaddress',
),
),
migrations.RunPython(code=populate_mac_addresses, reverse_code=migrations.RunPython.noop),
migrations.RemoveField(
model_name='interface',
name='mac_address',
),
]