[Grok-dev] Re: Using martian to load schemata

[Martijn Faassen]

Martin Aspeli wrote:
> Martijn Faassen <faassen <at> startifact.com> writes:
> 
>> This has absolutely nothing to do with Martian, just with the way 
>> configuration works in Zope 3. If you are going to define your schema at 
>> configuration time (or run time) and want to *use* them during import 
>> time (as grok.Fields or formlib in general actually does), i.e. *before* 
>> configuration, you'll have this problem.
> 
> Yeah, I understand. I can just imaging myself wanting to use things like
> utilities and adapters to write grokkers, thus getting into such a chicken
> and egg problem. Maybe it's not a common need, though.

You can use these in configuration actions, as long as you're sure 
they're happening *after* the other actions that registered them have 
happened. You can't use them in the grokkers themselves though for the 
same reason you cannot use them in the implementation of a ZCML directive.

It's not been a common need so far, I think.

Regards,

Martijn