oslo_db.sqlalchemy.migration_cli.ext_alembic
Module¶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.
engine (sqlalchemy.engine.Engine) – SQLAlchemy engine instance for a given database
migration_config (dict) – Stores specific configuration for migrations
downgrade
(version)¶Used for downgrading database.
version (string) – Desired database version
enabled
¶Used for availability verification of a plugin.
bool
has_revision
(rev_id)¶Checks whether the repo contains a revision
rev_id – Revision to check
Whether the revision is in the repo
bool
order
= 2¶revision
(message='', autogenerate=False)¶Creates template for migration.
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.
revision (string) – Should match one from repository or head - to stamp database with most recent revision
upgrade
(version)¶Used for upgrading database.
version (string) – Desired database version
version
()¶Current database version.
Databse version
string
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