Classe « Query »

Méthode sqlalchemy.orm.Query.with_transformation

Signature de la méthode with_transformation

def with_transformation(self, fn) 

Description

with_transformation.__doc__

Return a new :class:`_query.Query` object transformed by
        the given function.

        E.g.::

            def filter_something(criterion):
                def transform(q):
                    return q.filter(criterion)
                return transform

            q = q.with_transformation(filter_something(x==5))

        This allows ad-hoc recipes to be created for :class:`_query.Query`
        objects.  See the example at :ref:`hybrid_transformers`.