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49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
# Generated by Django 5.2.5 on 2025-09-09 16:48
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from django.db import migrations, models
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def get_active(apps, schema_editor):
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from django.core.cache import cache
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ConfigRevision = apps.get_model('core', 'ConfigRevision')
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version = None
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revision = None
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# Try and get the latest version from cache
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try:
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version = cache.get('config_version')
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except Exception:
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pass
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# If there is a version in cache, attempt to set revision to the current version from cache
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# If the version in cache does not exist or there is no version, try the lastest revision in the database
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if not version or (version and not (revision := ConfigRevision.objects.filter(pk=version).first())):
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revision = ConfigRevision.objects.order_by('-created').first()
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# If there is a revision set, set the active revision
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if revision:
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revision.active = True
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revision.save()
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class Migration(migrations.Migration):
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dependencies = [
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('core', '0018_concrete_objecttype'),
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]
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operations = [
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migrations.AddField(
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model_name='configrevision',
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name='active',
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field=models.BooleanField(default=False),
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),
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migrations.RunPython(code=get_active, reverse_code=migrations.RunPython.noop),
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migrations.AddConstraint(
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model_name='configrevision',
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constraint=models.UniqueConstraint(
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condition=models.Q(('active', True)), fields=('active',), name='unique_active_config_revision'
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),
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),
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]
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