Module « sqlalchemy.orm »

Fonction make_transient_to_detached - module sqlalchemy.orm

Signature de la fonction make_transient_to_detached

def make_transient_to_detached(instance) 

Description

make_transient_to_detached.__doc__

Make the given transient instance :term:`detached`.

    .. note::

        :func:`.make_transient_to_detached` is a special-case function for
        advanced use cases only.

    All attribute history on the given instance
    will be reset as though the instance were freshly loaded
    from a query.  Missing attributes will be marked as expired.
    The primary key attributes of the object, which are required, will be made
    into the "key" of the instance.

    The object can then be added to a session, or merged
    possibly with the load=False flag, at which point it will look
    as if it were loaded that way, without emitting SQL.

    This is a special use case function that differs from a normal
    call to :meth:`.Session.merge` in that a given persistent state
    can be manufactured without any SQL calls.

    .. seealso::

        :func:`.make_transient`

        :meth:`.Session.enable_relationship_loading`