dynamicweb/cms/migrations/__init__.py

12 lines
395 B
Python

from django.db import migrations
try:
IrreversibleError = migrations.Migration.IrreversibleError
except AttributeError:
from django.db.migrations.exceptions import IrreversibleError
class IrreversibleMigration(migrations.Migration):
def unapply(self, project_state, schema_editor, collect_sql=False):
raise IrreversibleError('Migration %s is not reversible' % self.name)