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b0541be107
* 13745 update migrations to use batch_size * 13745 update migrations to use subquery update * 13745 refactor and update other counter migrations
32 lines
875 B
Python
32 lines
875 B
Python
from django.db import migrations
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from django.db.models import Count
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import utilities.fields
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from utilities.counters import update_counts
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def populate_virtualchassis_members(apps, schema_editor):
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VirtualChassis = apps.get_model('dcim', 'VirtualChassis')
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update_counts(VirtualChassis, 'member_count', 'members')
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class Migration(migrations.Migration):
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dependencies = [
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('dcim', '0177_devicetype_component_counters'),
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]
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operations = [
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migrations.AddField(
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model_name='virtualchassis',
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name='member_count',
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field=utilities.fields.CounterCacheField(
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default=0, to_field='virtual_chassis', to_model='dcim.Device'
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),
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),
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migrations.RunPython(
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code=populate_virtualchassis_members,
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reverse_code=migrations.RunPython.noop
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),
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]
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