Module « sqlalchemy.orm »

Fonction as_declarative - module sqlalchemy.orm

Signature de la fonction as_declarative

def as_declarative(**kw) 

Description

as_declarative.__doc__

    Class decorator which will adapt a given class into a
    :func:`_orm.declarative_base`.

    This function makes use of the :meth:`_orm.registry.as_declarative_base`
    method, by first creating a :class:`_orm.registry` automatically
    and then invoking the decorator.

    E.g.::

        from sqlalchemy.orm import as_declarative

        @as_declarative()
        class Base(object):
            @declared_attr
            def __tablename__(cls):
                return cls.__name__.lower()
            id = Column(Integer, primary_key=True)

        class MyMappedClass(Base):
            # ...

    .. seealso::

        :meth:`_orm.registry.as_declarative_base`