[Grok-dev] Values from another document before rendering

[Kathy Manwaring]

OK. I had an issue with getting a vocabulary working, back in November.

The response that you sent me (quoted below) refers to a check for
gallery_id:

if hasattr(context, 'gallery_id') and context.gallery_id is not None:
    # I allways need to have the current value in my vocabulary
    # or choice widgets won't render.
    hasItem.append(context.gallery_id)

Presumably the call to the vocabulary includes some way of setting the
value of gallery_id - I can't get a value on my context, so I hope you can
send me the code for that bit as well!

Hopefully that is clearer - thanks for your time, Sebastian!

Kathy

> I am pretty sure I misunderstood the question...
>
> Mvh Sebastian

>>> Sebastian Ware wrote:
>>>> This is what I do. I have a field defined in an interface:
>>>>
>>>> gallery_id = schema.Choice(title=u"Gallery", vocabulary=u"Published
>>> NewProductGalleries")
>>>>
>>>> The vocabulary looks like this (it is a bit dirty, but it might
>>>> help you
>>> in the right direction):
>>>>
>>>>
>>>> import grok
>>>> from zope import schema
>>>> from zope.schema.vocabulary import SimpleVocabulary
>>>> from boardsportsource import interfaces
>>>> from boardsportsource import workflow
>>>> from hurry import query
>>>>
>>>> class NewProductGalleriesSource(grok.GlobalUtility):
>>>>   grok.implements(schema.interfaces.IVocabularyFactory)
>>>>   grok.name('Published NewProductGalleries')
>>>>   def __call__(self, context):
>>>>       terms = self.get_published_galleries(context)
>>>>       return  SimpleVocabulary(terms)
>>>>
>>>>   def get_published_galleries(self, context):
>>>>       hasItem = []
>>>>       if hasattr(context, 'gallery_id') and context.gallery_id is
>>>> not
>>> None:
>>>>           # I allways need to have the current value in my
>>>> vocabulary
>>>>           # or choice widgets won't render.
>>>>           hasItem.append(context.gallery_id)
>>>>
>>>>       # I use hurry.query to find the objects I want to use in
>>>>       # my vocabulary.
>>>>       theQuery = query.Eq(('workflow_catalog', 'workflow_state'),
>>> workflow.PUBLISHED)
>>>>       theQuery = theQuery & query.Eq(('workflow_catalog',
>>> 'object_type'), 'new_product_gallery')
>>>>       dictResult = query.query.Query().searchResults(theQuery)
>>>>
>>>>       theList = []
>>>>       for item in dictResult:
>>>>           theObj = interfaces.INewProductGallery(item)
>>>>
>>>> theList.append(SimpleVocabulary.createTerm(theObj.__name__,
>>> theObj.__name__, '%s (%s)' % (theObj.title, 'default')))
>>>>           if theObj.__name__ in hasItem:
>>>>               hasItem.remove(theObj.__name__)
>>>>
>>>>       for key in hasItem:
>>>>           # If the current value wasn't found in the search I add
>>>> it here
>>>>           # with an appropriate message.
>>>>           if grok.getSite()['default'].has_key(key):
>>>>               theObj =
>>> interfaces.IImageOfTheDayGallery(grok.getSite()['default'][key])
>>>>               theList.append(SimpleVocabulary.createTerm(key, key,
>>>> '%s
>>> (not published!)' % theObj.title))
>>>>           else:
>>>>               theList.append(SimpleVocabulary.createTerm(key, key,
>>>> '%s
>>> has been removed!' % key))
>>>>       return theList
>>>>
>>>> Mvh Sebastian