I need to change a collection order_by when a parent instance mapped
attribute changes.
Something like this:
parents = Table('parents', metadata,
Column('id', Integer, primary_key=True)
Column('reverse', Boolean, primary_key=True)
)
items =
you can use a dynamic relationship which allows you to say:
some_parent.items.order_by(items.c.id.desc())
http://www.sqlalchemy.org/docs/orm/collections.html#dynamic-relationship-loaders
On Oct 25, 2011, at 5:02 AM, neurino wrote:
I need to change a collection order_by when a parent instance
Thank you very much
On Tue, Oct 25, 2011 at 3:46 PM, Michael Bayer mike...@zzzcomputing.comwrote:
you can use a dynamic relationship which allows you to say:
some_parent.items.order_by(items.c.id.desc())
http://www.sqlalchemy.org/docs/orm/collections.html#dynamic-relationship-loaders
On