Function set_committed_value

lib/sqlalchemy/orm/attributes.py:2747–2763

Set the value of an attribute with no history events. Cancels any previous history present. The value should be a scalar value for scalar-holding attributes, or an iterable for any collection-holding attribute. This is the same underlying method used when a lazy loader fires o

(instance: object, key: str, value: Any)

def set_committed_value(instance: object, key: str, value: Any) -> None:
    """Set the value of an attribute with no history events.

    Cancels any previous history present.  The value should be
    a scalar value for scalar-holding attributes, or
    an iterable for any collection-holding attribute.

    This is the same underlying method used when a lazy loader
    fires off and loads additional data from the database.
    In particular, this method can be used by application code
    which has loaded additional attributes or collections through
    separate queries, which can then be attached to an instance
    as though it were part of its original loaded state.

    """
    state, dict_ = instance_state(instance), instance_dict(instance)
    state.manager[key].impl.set_committed_value(state, dict_, value)


def set_attribute(