old_contents: from django.core.management.base import BaseCommand, CommandError
  from sqlalchemy.orm.session import sessionmaker
  from api.connection import _get_engine
  from dataedit.models import Table
  from dataedit.views import schema_whitelist
  import sqlalchemy as sqla
  
  
  class Command(BaseCommand):
      def handle(self, *args, **options):
          engine = _get_engine()
          inspector = sqla.inspect(engine)
          real_tables = {(schema, table_name) for schema in schema_whitelist
              for table_name in inspector.get_table_names(schema=schema) if schema in schema_whitelist}
          table_objects = {(t.schema.name, t.name) for t in Table.objects.all() if t.schema.name in schema_whitelist}
          for schema, table in table_objects.difference(real_tables):
              Table.objects.get(name=table, schema__name=schema).delete()
          for schema, table in real_tables.difference(table_objects):
              Table.objects.create(name=table, schema__name=schema)
new_contents: from django.core.management.base import BaseCommand, CommandError
  from sqlalchemy.orm.session import sessionmaker
  from api.connection import _get_engine
  from dataedit.models import Table, Schema
  from dataedit.views import schema_whitelist
  import sqlalchemy as sqla
  
  
  class Command(BaseCommand):
      def handle(self, *args, **options):
          engine = _get_engine()
          inspector = sqla.inspect(engine)
          real_tables = {(schema, table_name) for schema in schema_whitelist
              for table_name in inspector.get_table_names(schema=schema) if schema in schema_whitelist}
          table_objects = {(t.schema.name, t.name) for t in Table.objects.all() if t.schema.name in schema_whitelist}
          for schema, table in table_objects.difference(real_tables):
              print(schema, table)
              Table.objects.get(name=table, schema__name=schema).delete()
          print("---")
          for schema, table in real_tables.difference(table_objects):
              print(schema, table)
              s=Schema.objects.get(name=schema)
              t=Table(name=table, schema=s)
              t.save()
  
subject: Fix mirror command