Re: Schema-by-interface options

Sidnei da Silva-2 wrote:
> 
> |  2) Add a particular schema field to a number of content types (e.g. add
> a
> | "tags" field to all or some content types when a tagging solution is
> | installed)
> 
> If you need to do that your model is fatally flawed. We should
> research instead about ways of 'merging' different schema/forms into a
> single one at the presentation level.
> 

Otherwise known as Archetypes. 

We are trying to come up with options that don't require us to re-invent all
of AT or pretend like every content type out there isn't using AT and
depending on how AT fits together, or could be re-written with something
different. The idea is that you want to be able to enforce side-wide
metadata (which could be use-case specific, or something like a generic
tagging engine) and get it into the AT edit form (e.g. to make it required).
The fact is that base_edit, base_validate and content_edit (are those the
names? the form, the validator and the save handler) all rely on being able
to iterate over the Schema(), and rely on what comes back to be AT field
types and widget types.

I don't see that it's a huge problem - we're not takling about persistently
stuffing new fields into the ZODB on a per-instance basis. This is merely a
way of making sure that what Schema() returns (for UI purposes...) is able
to include more useful things drawn in from more than just the 'schema'
class (or worse, instance) attribute. What else is Schema() (as an iterable
list of fields) used for?

Martin
-- 
View this message in context: http://www.nabble.com/Schema-by-interface-options-tf2239709.html#a6211255
Sent from the Archetypes - devel forum at Nabble.com.


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