[Zope-dev] Re: zcml filtering

[Wichert Akkerman]

Previously Philipp von Weitershausen wrote:
> Marius Gedminas wrote:
> >On Tue, Aug 05, 2008 at 10:36:30PM +0100, Martin Aspeli wrote:
> >>Subscribers and subscription adapters are particularly bad in this way, 
> >>since they are unnamed and thus can't be "overridden", only amended to.
> >>
> >>We've talked about an "off" switch for ZCML before. Given that we have a 
> >>configuration machine that's capable of doing overrides based on 
> >>discriminators, why couldn't we have support for negatives, e.g.
> >>
> >><unconfigure>
> >>   <utility ... />
> >></unconfigure>
> >>
> >>This could use a special _context that would record callables and 
> >>discriminators, and then look for the corresponding 
> >>callables/discriminators in the real context and remove them before that 
> >>context was configured.
> >
> >Subscribers don't have discriminators, unfortunately.
> 
> Indeed they don't. That just makes them harder to track down, though.
> 
> I'm working on a package for this functionality in z3c.unconfigure right 
> now. Name inspired by Martin's suggestion above; my original prototype 
> used had a different name but this is much better :).

I am using z3c.unconfigure now and it works perfectly.

Wichert.

-- 
Wichert Akkerman <wichert at wiggy.net>    It is simple to make things.
http://www.wiggy.net/                   It is hard to make things simple.