Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jim Fulton wrote: > Tres Seaver wrote: > >> -BEGIN PGP SIGNED MESSAGE- >> Hash: SHA1 >> >> Florent Guillaume wrote: >> >>> Jim Fulton wrote: >>> >>> I think that sources are different than initial value. I really don't see any role

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Jim Fulton
Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object tha

[Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Jim Fulton
Florent Guillaume wrote: Jim Fulton wrote: But a schema is useful for more than "specifying the values of an object". All notions of schemas I've encountered (CPS Schemas, XML Schemas, Archetypes) use the schema to constrain or validate an existing object, yes, but also to create new objects

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Jim Fulton
Tres Seaver wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object tha

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Jim Fulton
Gary Poster wrote: On Sep 7, 2005, at 9:13 AM, Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object that provides the sche

[Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Florent Guillaume
Jim Fulton wrote: But a schema is useful for more than "specifying the values of an object". All notions of schemas I've encountered (CPS Schemas, XML Schemas, Archetypes) use the schema to constrain or validate an existing object, yes, but also to create new objects from scratch (even in the

[Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Jim Fulton
Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object that provides the schema. An initial value doesn't constrain or specify

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Gary Poster
On Sep 7, 2005, at 9:59 AM, Janko Hauser wrote: ... But actually this started with the observation that if we keep default, we need something like a dynamic default, not only a fixed value in the schema definition. This happens for example if one wants to set the current date as the default

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Janko Hauser
Am 07.09.2005 um 15:42 schrieb Tres Seaver: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a sp

[Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Florent Guillaume wrote: > Jim Fulton wrote: > >> I think that sources are different than initial value. I really don't >> see any role that "initial value" has in an object specification. >> >> A schema is a specification for an object that provides

Re: [Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Gary Poster
On Sep 7, 2005, at 9:13 AM, Florent Guillaume wrote: Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object that provides the schema. An initial valu

[Zope3-dev] Re: Proposed widget/schema work for the Rivah sprint (Thursday and Friday this week)

2005-09-07 Thread Florent Guillaume
Jim Fulton wrote: I think that sources are different than initial value. I really don't see any role that "initial value" has in an object specification. A schema is a specification for an object that provides the schema. An initial value doesn't constrain or specify the object. If anything, i