trulens.core.database.migrations.data¶

trulens.core.database.migrations.data ¶

sql_alchemy_migration_versions: List[int] = [
    1,
    2,
    3,
    4,
    5,
    6,
    7,
    8,
    9,
    10,
]

DB versions.

sqlalchemy_upgrade_paths: Dict[
    int, Tuple[int, Callable[[DB]]]
] = {}

A DAG of upgrade functions to get to most recent DB.

_get_sql_alchemy_compatibility_version(version: int) -> int

Gets the last compatible version of a DB that needed data migration.

PARAMETER	DESCRIPTION
`version`	The alembic version TYPE: `int`

RETURNS	DESCRIPTION
`int`	An alembic version of the oldest compatible DB TYPE: `int`

_sql_alchemy_serialization_asserts(db: DB) -> None

Checks that data migrated JSONs can be deserialized from DB to Python objects.

PARAMETER	DESCRIPTION
`db`	The database object TYPE: `DB`

RAISES	DESCRIPTION
`VersionException`	raises if a serialization fails

data_migrate(db: DB, from_version: Optional[str])

Makes any data changes needed for upgrading from the from_version to the current version.

PARAMETER	DESCRIPTION
`db`	The database instance. TYPE: `DB`
`from_version`	The version to migrate data from. TYPE: `Optional[str]`

RAISES	DESCRIPTION
`VersionException`	Can raise a migration or validation upgrade error.