Re: [Zope-dev] Restricting Sub-Objects in Folders DYNAMICALLY?

16 Mar 2002

      Brian Oliver wrote:
...
For example:  I'd like to restrict the number of a certain type of 
object that may appear in a folder.  The end-user can add up to the 
limit, and afterwards the object type should NO LONGER APPEAR in the 
"Add List".
If you put this in your product:

    def all_meta_types(self):
        """ What types can you add to this objectManager? """
        allowedMetaTypes = ('DTML Document', 'DTML Method')
        result = []
        for metaType in Products.meta_types:
            if metaType['name'] in allowedMetaTypes:
                result.append(metaType)
        return result

You can probably modify it to your needs.

regards Max M