Classe « Mapper »

Méthode sqlalchemy.orm.Mapper.primary_key_from_instance

Signature de la méthode primary_key_from_instance

def primary_key_from_instance(self, instance) 

Description

primary_key_from_instance.__doc__

Return the list of primary key values for the given
        instance.

        If the instance's state is expired, calling this method
        will result in a database check to see if the object has been deleted.
        If the row no longer exists,
        :class:`~sqlalchemy.orm.exc.ObjectDeletedError` is raised.