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afc62b6ffd
Adjust VLAN ID range calculation to use half‑open intervals for consistency. Add a test to validate `_total_vlan_ids`. Fixes #20610
28 lines
991 B
Python
28 lines
991 B
Python
from django.db import migrations
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def populate_vlangroup_total_vlan_ids(apps, schema_editor):
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VLANGroup = apps.get_model('ipam', 'VLANGroup')
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db_alias = schema_editor.connection.alias
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vlan_groups = VLANGroup.objects.using(db_alias).only('id', 'vid_ranges')
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for group in vlan_groups:
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total_vlan_ids = 0
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if group.vid_ranges:
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for r in group.vid_ranges:
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# Half-open [lo, hi): length is (hi - lo).
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if r is not None and r.lower is not None and r.upper is not None:
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total_vlan_ids += r.upper - r.lower
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group._total_vlan_ids = total_vlan_ids
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VLANGroup.objects.using(db_alias).bulk_update(vlan_groups, ['_total_vlan_ids'], batch_size=100)
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class Migration(migrations.Migration):
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dependencies = [
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('ipam', '0082_add_prefix_network_containment_indexes'),
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]
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operations = [
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migrations.RunPython(populate_vlangroup_total_vlan_ids, migrations.RunPython.noop),
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]
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