The oslo_db.sqlalchemy.migration_cli.ext_alembic Module

class oslo_db.sqlalchemy.migration_cli.ext_alembic.AlembicExtension(engine, migration_config)

Bases: oslo_db.sqlalchemy.migration_cli.ext_base.MigrationExtensionBase

Extension to provide alembic features.

Parameters:

• engine (sqlalchemy.engine.Engine) – SQLAlchemy engine instance for a given database
• migration_config (dict) – Stores specific configuration for migrations

downgrade(version)

enabled

has_revision(rev_id)

order = 2

revision(message=”, autogenerate=False)

Creates template for migration.

Parameters:

• message (string) – Text that will be used for migration title
• autogenerate (bool) – If True - generates diff based on current database state

stamp(revision)

Stamps database with provided revision.

Parameters:revision (string) – Should match one from repository or head - to stamp database with most recent revision

upgrade(version)

version()