[Zope3-dev] best practices for registry-like functionality

[Garrett Smith]

I need to manage a set of vocabulary-like objects for a site. These 
vocab objects will be used by widgets.

These objects are not content, so I want to store and manage them in a 
site management folder. Specifically, I need to be able to:

- Add new vocab objects
- Edit existing vocab objects
- Delete vocab objects
- Lookup a vocabulary by name
- Get a list of all registered vocab objects

In the past, I would have written a service for this, which would 
maintain its own contained set of vocab objects. But I suspect I really 
want a utility, since the recent trend has been to use utilities over 
services.

The utility would be used to lookup vocab objects and provide a list of 
registered vocab objects.

I also suspect that the utility should not contain the vocab objects, 
but that the vocab objects should instead be added directly to the site 
management folder, or perhaps to a Vocabulary-Like Objects Folder ala 
the Page Folder.

I'm terribly fuzzy about the recommended approach for this sort of 
thing. Any help would be much appreciated.

  -- Garrett