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
oslo_db.sqlalchemy.migration_cli.ext_base.
MigrationExtensionBase
¶Bases: object
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
= 0¶revision
(*args, **kwargs)¶Used to generate migration script.
In migration engines that support this feature, it should generate new migration script.
Accept arbitrary set of arguments.
stamp
(*args, **kwargs)¶Stamps database based on plugin features.
Accept arbitrary set of arguments.
upgrade
(version)¶Used for upgrading database.
version (string) – Desired database version
version
()¶Current database version.
Databse version
string
oslo_db.sqlalchemy.migration_cli.ext_migrate.
MigrateExtension
(engine, migration_config)¶Bases: oslo_db.sqlalchemy.migration_cli.ext_base.MigrationExtensionBase
Extension to provide sqlalchemy-migrate features.
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
= 1¶upgrade
(version)¶Used for upgrading database.
version (string) – Desired database version
version
()¶Current database version.
Databse version
string
oslo_db.sqlalchemy.migration_cli.manager.
MigrationManager
(migration_config, engine=None)¶Bases: object
downgrade
(revision)¶Downgrade database with available backends.
revision
(message, autogenerate)¶Generate template or autogenerated revision.
stamp
(revision)¶Create stamp for a given revision.
upgrade
(revision)¶Upgrade database with all available backends.
version
()¶Return last version of db.
oslo_db.sqlalchemy.migration_cli.manager.
check_plugin_enabled
(ext)¶Used for EnabledExtensionManager.
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