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.
Parameters: |
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downgrade
(version)¶Used for downgrading database.
Parameters: | version (string) – Desired database version |
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enabled
¶Used for availability verification of a plugin.
Return type: | bool |
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has_revision
(rev_id)¶Checks whether the repo contains a revision
Parameters: | rev_id – Revision to check |
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Returns: | Whether the revision is in the repo |
Return type: | bool |
order
= 2¶revision
(message='', autogenerate=False)¶Creates template for migration.
Parameters: |
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stamp
(revision)¶Stamps database with provided revision.
Parameters: | revision (string) – Should match one from repository or head - to stamp database with most recent revision |
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upgrade
(version)¶Used for upgrading database.
Parameters: | version (string) – Desired database version |
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version
()¶Current database version.
Returns: | Databse version |
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Return type: | string |
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