Re: [Zope3-dev] ILocation vs IContained
Florent Guillaume wrote: I'm having a hard time grasping the reasons why we have both ILocation and IContained. Overdesign on my part. class IContained(ILocation): Objects contained in containers. But ILocation provides a __parent__ already, which seems to imply that it's contained in it. No? What use case makes us differentiate between the two? The desire to distinguish ebtween objects that are container items and objects that are simply located. A good example is a site's site manager. Fred was correct when he said: Fred Drake wrote: My own understanding is this: - ILocation refers to the __parent__/__name__ API, which allows these attributes to have None as a value. - IContained indicates that the object is actually contained in an IReadContainer, not just that it can be contained. And others are correct when they point out that this is inconsistent with Contaner implementing IContainer. I'd be happy to see IContainer go away. I don't think the distinction between ILocation and IContainer is worth the complexity they cause. Jim -- Jim Fulton mailto:[EMAIL PROTECTED] Python Powered! CTO (540) 361-1714http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org ___ Zope3-dev mailing list Zope3-dev@zope.org Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
Re: [Zope3-dev] ILocation vs IContained
On 7/9/05, Roger Ineichen [EMAIL PROTECTED] wrote: Contained is the mixin class for the __parent__ and __name__ attributes or not? And we used it as this. Otherwise you have to implement __parent__ and __name__ in your own classes again and again. See the commet in the class: Stupid mix-in that defines `__parent__` and `__name__` attributes zope.app.location.Location that comment as well, and doesn't imply IContained. So the ambiguity screams loudly as to its presence. :-( -Fred -- Fred L. Drake, Jr.fdrake at gmail.com Zope Corporation ___ Zope3-dev mailing list Zope3-dev@zope.org Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
[Zope3-dev] ILocation vs IContained
I'm having a hard time grasping the reasons why we have both ILocation and IContained. class IContained(ILocation): Objects contained in containers. But ILocation provides a __parent__ already, which seems to imply that it's contained in it. No? What use case makes us differentiate between the two? Florent -- Florent Guillaume, Nuxeo (Paris, France) CTO, Director of RD +33 1 40 33 71 59 http://nuxeo.com [EMAIL PROTECTED] ___ Zope3-dev mailing list Zope3-dev@zope.org Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
