[Grok-dev] registering vocabulary

[Sebastian Ware]

Try defining your GlobalUtility like this: 

  class WidgetTypeVocabulary(grok.GlobalUtility):
      grok.implements(IVocabularyFactory)
      grok.name(widget_type_vocabulary')

Mvh Sebastian



14 apr 2011 kl. 09.53 skrev Paolo Piersanti:

> On 04/13/2011 06:29 PM, Christian Klinger wrote:
>> Hi Paolo,
>> 
>> can you paste the traceback of the error.
>> 
>> And how you registerd the utility?
> 
> Hi Christian
> 
> I registered the vocabulary as
> grok.global_utility(WidgetTypeVocabulary,name=u"widget_type_vocabulary")
> and it works fine when I do
> getUtility(WidgetTypeVocabulary, name=u"widget_type_vocabulary")
> I can get my utility.
> The utility is implemented in this way:
> 
> class WidgetTypeVocabulary(object):
>    grok.implements(IVocabularyFactory)
>    def __call__(self, context):
>        values = (....)
>        return SimpleVocabulary.fromItems(values)
> 
> I also use it in a form interface as
> class IStatement(interface.Interface):
>    widget_type = schema.Choice(title=_(u"Widget Type"),
>                                description=_(u"Widget Type"),
>                                vocabulary=u'widget_type_vocabulary',
>                                required=True)
> 
> but here the exception is triggered when the grok machinery
> try to instantiate the form involved in the add or edit actions
> here is the traceback:
> 
>> Traceback (most recent call last):
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.publisher-3.12.6-py2.6.egg/zope/publisher/publish.py", line 132, in publish
>>    result = publication.callObject(request, obj)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/grokcore.view-2.5-py2.6.egg/grokcore/view/publication.py", line 56, in callObject
>>    return super(ZopePublicationSansProxy, self).callObject(request, ob)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.app.publication-3.13.1-py2.6.egg/zope/app/publication/zopepublication.py", line 207, in callObject
>>    return mapply(ob, request.getPositionalArguments(), request)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.publisher-3.12.6-py2.6.egg/zope/publisher/publish.py", line 107, in mapply
>>    return debug_call(obj, args)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.publisher-3.12.6-py2.6.egg/zope/publisher/publish.py", line 113, in debug_call
>>    return obj(*args)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/grokcore.formlib-1.8-py2.6.egg/grokcore/formlib/components.py", line 90, in __call__
>>    self.update_form()
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/grokcore.formlib-1.8-py2.6.egg/grokcore/formlib/components.py", line 62, in update_form
>>    super(GrokForm, self).update()
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.formlib-4.0.5-py2.6.egg/zope/formlib/form.py", line 758, in update
>>    self.setUpWidgets()
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.formlib-4.0.5-py2.6.egg/zope/formlib/form.py", line 833, in setUpWidgets
>>    adapters=self.adapters, ignore_request=ignore_request
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.formlib-4.0.5-py2.6.egg/zope/formlib/form.py", line 388, in setUpEditWidgets
>>    field = field.bind(adapter)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.schema-3.7.1-py2.6.egg/zope/schema/_field.py", line 291, in bind
>>    clone.vocabulary = vr.get(object, self.vocabularyName)
>>  File "/home/gon/src/crm_campaign_env/crm_campaign/eggs/zope.schema-3.7.1-py2.6.egg/zope/schema/vocabulary.py", line 166, in get
>>    raise VocabularyRegistryError(name)
>> VocabularyRegistryError: unknown vocabulary: u'widget_type_vocabulary'
> 
> Inspectioning the vocabulary registry with pdb results in a failing
> lookup.
> Registering the vocabulary in this way:
> 
> >from zope.schema.vocabulary import getVocabularyRegistry
> >getVocabularyRegistry().register(u'widget_type_vocabulary',                         > WidgetTypeVocabulary())
> everything is ok.
> 
> Thank you for your support
> 
> Paolo Piersanti
> 
> 
> -- 
>   Signature for Rent - Questo spazio si affitta
> Paolo Piersanti  Software Developer & System Admininistrator
> 
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