On Wednesday 27 July 2005 10:04, Alec Munro wrote: > I'm sure I'm using the wrong terminology, so here's what I'm trying to do. > I have a generic container type (someContainer), and a specific object > type (objA). objA can only be contained within AContainer (or > containers that implement IAContainer), so in order to add objA to > someContainer, we would need an adapter between IAContainer and > IsomeContainer. To complicate the mix, there is no such adapter > (because I don't want objA stored in someContainer). However, there is > an adapter between IBContainer, and IsomeContainer. There is also an > adapter between IobjA and IobjB.
This use case has been solved for a long time using the API of zope.app.containers.constraints and is documented in several places. Regards, Stephan -- Stephan Richter CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training _______________________________________________ Zope3-users mailing list Zope3email@example.com http://mail.zope.org/mailman/listinfo/zope3-users