Re: zope 3 schema's and the rest of us

On Thu, 2006-13-07 at 14:18 -0230, Rocky Burt wrote:

> Perhaps.  The big thing is that Archetypes schema's are about data
> definition as well as UI for that data.  Zope 3 schema's (as you know)
> are only for data definition, not UI.  This is where the separated
> widget stuff in zope3 tries to step in.  formlib has a huge set of
> reusable utility functions for building up widgets based on form fields
> based on schema's so that'd would definitely be some code to look at.
> https://lists.sourceforge.net/lists/listinfo/archetypes-devel


I want to elaborate on this a bit.

Comparisons between Archetypes and functionally similar zope3 tech:


Description
Archetypes
Zope 3
1
data definition
for content types
atapi.Schema &
atapi.Field
zope.interface &
zope.schema
2
automatic UI for
data fields
atapi.Widget which
atapi.Field
already depends on
zope.widget
3
automatic UI for
forms using data
fields
base_edit,
base_view, &
friends
zope.formlib

In the case of Archetypes, all 3 items are dependent on each other and
cannot easily be separated (with the exception of possibly doing
myobj.widget('somefield') inside a custom zpt).  Zope 3 has very
separate ideas of these.  What does this mean?  This means you can build
an auto-generated search interface with a zope 3 schema since its not
tied a content type whereas you cannot with an archetypes schema.  This
means AT cannot provide arbitrary auto-generated "pages" anywhere on the
system whereas zope.formlib can.

Anyhow, sorry about the html email ... just wanted to try and visualize
this a bit for myself as well.

- Rocky


-- 
Rocky Burt
ServerZen Software -- http://www.serverzen.com
News About The Server (blog) -- http://www.serverzen.net


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