Am Freitag, 30. Dezember 2005 17:45 schrieb Jim Fulton: > Philipp von Weitershausen wrote: > > Florian Lindner wrote: > >>my first use case is that I want to enhance the HomefolderManager to make > >> it possible to select something else than a Folder to be created > >> automatically. Right now I have forked a version of the > >> HomefolderManager and just changed in the code. But I would like to have > >> a more generic solution and I'll also commit it back to the trunk. > >>For that I want all classes implementing IContainer (and IContentType ?) > >> and let the user select on in the configuration dialog of the > >> HomefolderManager. More use caess probably show up in my project later, > >> but nothing fixed at this time. > > > > So what you want is to create objects. Classes are just an > > implementation detail to creating objects :). Factories create objects, > > whether they're from a class is immaterial. > > > > So, what you want is not a list of classes but a list of factories that > > can create IContainers. This is possible by using > > zapi.getUtilitiesFor(IFactory) and then checking each factory's > > getInterfaces() method whether IContainer is a part of the returned > > result. I would probably base an implementation of all on the > > UtilityVocabulary. > > I'll also note that the use case is also directly addressed through > containment constraints. You can say that a container > should only contain objects of some given types and you will get > just those types in the add list.
But the HomeFolderManager is not a container itself it's just a utility that creates container upon requests. And I want to make choosable which container to create. Or do I misunderstand you? Florian _______________________________________________ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users