Function object_state

lib/sqlalchemy/orm/base.py:407–428

Given an object, return the :class:`.InstanceState` associated with the object. Raises :class:`sqlalchemy.orm.exc.UnmappedInstanceError` if no mapping is configured. Equivalent functionality is available via the :func:`_sa.inspect` function as:: inspect(instance)

(instance: _T)

def object_state(instance: _T) -> InstanceState[_T]:
    """Given an object, return the :class:`.InstanceState`
    associated with the object.

    Raises :class:`sqlalchemy.orm.exc.UnmappedInstanceError`
    if no mapping is configured.

    Equivalent functionality is available via the :func:`_sa.inspect`
    function as::

        inspect(instance)

    Using the inspection system will raise
    :class:`sqlalchemy.exc.NoInspectionAvailable` if the instance is
    not part of a mapping.

    """
    state = _inspect_mapped_object(instance)
    if state is None:
        raise exc.UnmappedInstanceError(instance)
    else:
        return state


@inspection._inspects(object)