Re: Re: What does Five and Z3 mean for Archetypes?

whit wrote:
> <snip>
> 
>>
>> I see the argument, but can you be a bit more specific? What, 
>> practically, can a
>> simple Z3 schema not do (validation? default values?), and how would 
>> you get
>> that same functionality in a pure Z3 world?
> 
> 
> ok...let me try to chart this...

Okay, a commentary on this...

> AT paradigm   Z3 equiv
> ---------     --------
> schemata      Interface inheritance / multiple schema

So what does schemata do in Archetypes?

> storage       adapters for getting and setting

Do annotations fit in somewhere? Zope 3 doesn't have a storage framework 
yet, so I think Zope 3 has some work to do here. ZPatterns gurus speak 
up.. :)

> a widget      3 views / 2 z3 schemas (search, edit, view)

Views for fields (i.e. sub page views) are called "widgets" in Zope 3 as 
well.

An AT widget contains both a search, an edit and a display facility?

Zope 3 right now has a pattern of separate edit and display widgets. I 
don't know what the equivalent of 'search' would be -- what does this do 
in AT?

> a field       z3 content object or an attr on a z3 content object

Okay, and to avoid confusing, Z3 does use the word "field", but for 
that's for the attribute declaration on the schema/interface, i.e. we 
have Text fields, Int fields and the like.

> a reffield    nothing currently

What do reffields do in AT?

> marshalling   a view? nothing currently

What's marshalling exactly?

> AT schema     nothing in at gives a cohesive representation of
>               an entire "type". if if any of you saw ben wisdol talk
>               you may remember the importance of this for dealing with
>               webservices and other strongly typed systems.

Do you mean nothing in Archetypes or nothing in Z3? Could you go into 
this a bit more?

Zope 3's story feels a bit 'scattered' right now, and I think it would 
be nice for some usecases to be able to have the whole definition of 
interface/schema and form in a single place without too much redundancy. 
I should experiment with the feel of placing all this in the same file 
in Zope 3...

Regards,

Martijn


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