[Zope3-dev] Re: [z3-five] zcml questions

[Chris Withers]

Tres Seaver wrote:
>>> How should I do things such that they can do that?
>> I'm just wondering whether you really need the disabling feature.
> 
> I've wanted it.  My major beef with the way we are *using* ZCML now is
> that we expect package authors to provide policy-laden configuration for
> their packages ("sensible defaults") but provide no means for the admin
> to reuse that configuration selectively;  their only realy choice is to
> *copy* the configuration and edit it.

Yes indeed.

> I argued *long* ago (after the first ZC-internal Zope3 sprint, I think)
> that the '<include>' directive should be allowed to be complex, with
> subelements like '<except>' or '<only>' to pull in specific directives.

This sounds a bit heavyweight, how about just a "disable" thingy:

<disable path="/some/xpath/here"/>

> (e.g., a 'zcml:id' attribute).  It would *also* require that we
> implement the "no side-effects during parsing" policy (my other favorite
> "dead horse" in arguments about ZCML's implementation / usage).

...yep, my "disable" idea needs this too!

Chris

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