Classe « MapperProperty »

Méthode sqlalchemy.orm.MapperProperty.cascade_iterator

Signature de la méthode cascade_iterator

def cascade_iterator(self, type_, state, dict_, visited_states, halt_on=None) 

Description

cascade_iterator.__doc__

Iterate through instances related to the given instance for
        a particular 'cascade', starting with this MapperProperty.

        Return an iterator3-tuples (instance, mapper, state).

        Note that the 'cascade' collection on this MapperProperty is
        checked first for the given type before cascade_iterator is called.

        This method typically only applies to RelationshipProperty.