Am 14.07.2008 um 12:17 schrieb yuppie:

CMF 2.1 was released with some formlib based edit forms. I don't think it was a mistake, because at that time z3c.form wasn't available in the Zope 2 world.

It certainly wasn't a mistake in fact I think it was great. To me it seems reasonable at least to try and complete a set of browser views using zope.formlib for CMF 2.2.

We're already using zope.formlib in the "experimental browser views" edit forms. The reference to a sinking ship is totally off- target. My own view is that sometimes it is better to wait for version 2 of a product or library to be released before adoption. Surely Plone has suffered from adopting some stuff too early?
*shrug*
Do what you please. I'm not particularly wedded to one or the other. But having used both, I'm pretty sure that z3c.form is a better library. In many ways, z3c.form *is* version 2 of formlib.

Exactly. z3c.form is a new version of zope.formlib that doesn't care about backwards compatibility. All development is done in z3c.form. Using the picture of a sinking ship: At least the crew has already abandoned the formlib ship. And without crew it will sink sooner or later.

I really don't think the ship metaphor is appropriate - software tends to be around for a lot longer than you expect (hasn't MS only just stopped support for Window 3.11?) but that is probably irrelevant. The questions are probably: do we have any problems with zope.formlib that we know will be solved by using z3c.form? what is the overhead of migrating between the two? So far I'm just really a consumer of the formlib integration in the CMF. I had a brief look at the z3c.form stuff last night and it didn't seem to be radically different from formlib so that a migration shouldn't be too much work. But perhaps for precisely the same reason there is less of a need to migrate. It would certainly be advantageous to have both five.formlib and five.form and it's great that we can expect to have a common basis for the CMF and Plone.

It was always a goal of CMF to minimize dependencies. But Zope became less monolithic, so we have to define the Zope dependency ourselves. It's no longer just the Zope 2 distribution, we have to use separately shipped packages like five.localsitemanager as well. And z3c.form is *the* current Zope package for creating forms.


You've hit on an important point: Zope 2.10 and Zope 2.11 both ship with zope.formlib but things like sitemanager are changing the game and will require more package support so why not bite the bullet?

Charlie
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Charlie Clark
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