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5ff304324d
The documents.tests.test_migration_mime_type test suite failes if no backwards migration is provided. This simple backwards migration sets the old assign_tag field with a tag if exactly one is set in assign_tags.
41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# Generated by Django 3.2.12 on 2022-03-11 15:02
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from django.db import migrations
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def migrate_tag_to_tags(apps, schema_editor):
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# Manual data migration, see
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# https://docs.djangoproject.com/en/3.2/topics/migrations/#data-migrations
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#
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# Copy the assign_tag property to the new assign_tags set if it exists.
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MailRule = apps.get_model("paperless_mail", "MailRule")
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for mail_rule in MailRule.objects.all():
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if mail_rule.assign_tag:
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mail_rule.assign_tags.add(mail_rule.assign_tag)
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mail_rule.save()
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def migrate_tags_to_tag(apps, schema_editor):
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# Manual data migration, see
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# https://docs.djangoproject.com/en/3.2/topics/migrations/#data-migrations
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#
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# Copy the unique value in the assign_tags set to the old assign_tag property.
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# Do nothing if the tag is not unique.
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MailRule = apps.get_model("paperless_mail", "MailRule")
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for mail_rule in MailRule.objects.all():
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tags = mail_rule.assign_tags.all()
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if len(tags) == 1:
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mail_rule.assign_tag = tags[0]
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mail_rule.save()
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class Migration(migrations.Migration):
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dependencies = [
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("paperless_mail", "0009_mailrule_assign_tags"),
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]
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operations = [
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migrations.RunPython(migrate_tag_to_tags, migrate_tags_to_tag),
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]
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