Hi, it seems to me this has stalled somewhat, so I wanted to ask what people's conclusions are.
* Wolfgang Schnerring <w...@gocept.com> [2011-03-26 13:41]: > * Martin Aspeli <optilude+li...@gmail.com> [2011-03-26 11:22]: >> On 26 March 2011 08:11, Wolfgang Schnerring <w...@gocept.com> wrote: >> I don't think a fixture of "package foo's configuration except >> component X and Y" is all that useful. Whether the the "unregister" use case is useful remains debatable, but I personally don't care all *that* much for it, so if the consensus is that it's overkill I'll go along I guess. I do care quite a bit for proper getSiteManager() support... >> We do definitely need to allow the global site manager to be stacked >> (which you can achieve with __bases__ as in plone.testing, >> unregistration notwithstanding). But once you do that, the rest is >> pretty easy. The local site manager will always have the global as one >> of its (nested) __bases__. > > I'm sorry, but no, it isn't that easy. When the only local site > consumer is zope.site, well, maybe. But please think of this in terms > of zope.component *only*. > > Its API is getSiteManager.sethook(callable), and AFAICT the contract > is that the return value of callable must provide IComponents > (briefly: get* and register*). Nowhere does it say that you have to > delegate back to the global registry, and neither it should. To bring > up Pyramid once again, they explicitly don't, because they want to > allow several applications (thus, several registries) coexisting in > the same process. > > And since we can't assume this delegation, I think there is no other > way to properly do the stacking than to bend getSiteManager. ... as described here, though. And I wonder if I'm missing something, because to do that properly looks like quite the can of worms to me. So, how can we proceed here? Should I (and Thomas) try to get a proof-of-concept implementation of this based on plone.testing? Or should we think about what it takes to merge most of plone.testing's ZCA support into zope.component itself first? Wolfgang _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org https://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - https://mail.zope.org/mailman/listinfo/zope-announce https://mail.zope.org/mailman/listinfo/zope )
