[Zope-dev] Unique meta_types in a folder

[Jason Spisak]

Pavlos:

A quick look at the source reveals none other that the
"possible_meta_types" variable.  I am having trouble accessing that from an
instance though.  The ZClass atb just calls 

<dtml-in possible_meta_types mapping>

But when I cal that from an instance I get:

Error Type: KeyError
Error Value: possible_meta_types

Does anyone know how to access that from an instance?

All my best,


> On Fri, 17 Mar 2000, Jason Spisak wrote:
> 
> > Pavlos,
> > 
> > I wasn't quite clear.  I'm trying to get 'possible_values'.  Right now the
> > only way is to iterate through all the items in a folder and only append
> > the unique ones.  That would take a very long time.  Is there a way to
> > access the allowables defined by the  "Sub Objects" tab of a Zclass?
> > 
> 
> Oops I am sorry .... I do not know whether there is a magic Zope method to
> return that. If not then you are right and you will  have to
> iterate over all subobjects, like (tested):
> 
> <dtml-call "REQUEST.set('tmp',{})">
> <dtml-in objectValues>
> <dtml-call "REQUEST['tmp'].update({meta_type:''})">
> </dtml-in>
> <dtml-return "REQUEST['tmp'].keys()">
> 
> Pavlos
> 


Jason Spisak
CIO
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