[z3-five] Annotations

[Martijn Faassen]

Tim Hicks wrote:

> ... but I'm not quite sure how to integrate the working of adapters with a
> plone/archetypes site.  The idea of adapters seems to be to change/add to
> the behaviour of objects without touching them, but I don't know how to
> expose this in my site without actually changing the objects (or their
> class) themselves.

Typically in Zope 3 one would expose behavior defined in adapters by 
also adding views for the same interface, that make use of this adapter. 
I do not know how this would interact with a CMF site though.

Alternatively it might be possible to add a layer or something in CMF 
that make use of this adapter.

[snip]
> My remaining problem is that I don't like writing HTML forms by hand, or
> writing validators ;-).  I want my IAnnotation-stored attributes - forms
> and validation - to be handled by a framework.  I'm used to relying on
> Archetypes, but zope3's schema stuff sounds like a better fit here.
> 
> What problems (if any) do you foresee in exposing a zope3 schema-driven
> form in a plone/archetypes object's 'tab'?

The main problem here is that the Five community has only limited 
experience in making this working -- parts of the widget system work 
(there is demo code), but as far as I know nobody invested time yet in 
trying to make the full machinery work. This may be easy or may be hard; 
I don't think anybody really tried very hard yet.

>  How would I expose such a form
> (and it's validation) through the CMF/plone skins tool?

I have no idea. :)

Regards,

Martijn