37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
from django.core.management.base import BaseCommand
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from django.db import connection
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from django.db import models
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from documents.models import Document
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class Command(BaseCommand):
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# This code is taken almost entirely from https://github.com/wagtail/wagtail/pull/11912 with all credit to the original author.
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help = "Converts UUID columns from char type to the native UUID type used in MariaDB 10.7+ and Django 5.0+."
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def convert_field(self, model, field_name, *, null=False):
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if model._meta.get_field(field_name).model != model: # pragma: no cover
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# Field is inherited from a parent model
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return
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if not model._meta.managed: # pragma: no cover
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# The migration framework skips unmanaged models, so we should too
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return
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old_field = models.CharField(null=null, max_length=36)
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old_field.set_attributes_from_name(field_name)
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new_field = models.UUIDField(null=null)
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new_field.set_attributes_from_name(field_name)
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with connection.schema_editor() as schema_editor:
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schema_editor.alter_field(model, old_field, new_field)
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self.stdout.write(
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self.style.SUCCESS(
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f"Successfully converted {model._meta.label} {field_name} field to UUID type.",
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),
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)
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def handle(self, **options):
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self.convert_field(Document, "transaction_id", null=True)
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