[Zope-CMF] Formlib for folders

[Charlie Clark]

Am 13.02.2008 um 13:16 schrieb Wichert Akkerman:

> vocabulary factories take a context as argument.
>
> This vocabulary is already implemented in plone.app.vocabularies, you
> can just use that:
> http://dev.plone.org/plone/browser/plone.app.vocabularies/trunk/plone/app/vocabularies/types.py


Thanks very much for this. Would it be possible to include the two  
portal_types vocabularies in CMFDefault?

I got the vocabulary in my view class but then I got an Assertion  
Error relating to it:

2008-02-13 21:16:34 ERROR Zope.SiteErrorLog http://localhost:8080/new/b/@@edit.html
Traceback (innermost last):
  Module ZPublisher.Publish, line 119, in publish
  Module ZPublisher.mapply, line 88, in mapply
  Module ZPublisher.Publish, line 42, in call_object
  Module zope.formlib.form, line 769, in __call__
  Module Products.Five.formlib.formbase, line 55, in update
  Module zope.formlib.form, line 732, in update
  Module Products.camaoCms.browser.masterpage, line 86, in setUpWidgets
  Module Products.CMFDefault.formlib.form, line 117, in setUpWidgets
  Module zope.formlib.form, line 379, in setUpEditWidgets
  Module zope.schema._field, line 244, in bind
AssertionError

Looking at the source:

    def bind(self, object):
        """See zope.schema._bootstrapinterfaces.IField."""
        clone = super(Choice, self).bind(object)
        # get registered vocabulary if needed:
        if IContextSourceBinder.providedBy(self.vocabulary):
            clone.vocabulary = self.vocabulary(object)
            assert ISource.providedBy(clone.vocabulary)
        elif clone.vocabulary is None and self.vocabularyName is not  
None:
            vr = getVocabularyRegistry()
            clone.vocabulary = vr.get(object, self.vocabularyName)
            assert ISource.providedBy(clone.vocabulary)

looks like I'm a victiom of copy & paste programming (again! ;-) The  
vocabulary definitely doesn't provide ISource but I can't seem to get  
this to work: either by adding it as a parameter to implements() or in  
ZCML leads to a lookup error:

ComponentLookupError: (<InterfaceClass  
zope.schema.interfaces.IVocabularyFactory>,  
'cmf.UserFriendlyContentTypes')

mm, guess I need to double check my declarations. I thought that

implements(IMyInterface)

is equivalent to provides="...IMyInterface" in ZCML

BTW. this is probably academic but I noticed the top of the types.py is
from zope.app.schema.vocabulary import IVocabularyFactory
Is there a reason for not importing the interface directly?

I'll also be reading up ISource in Philip's book.

Charlie
--
Charlie Clark
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