[Zope-CMF] restricting a content type to a particular container

[Mark McEahern]

Hi, I have a content type that only makes sense in a specialized container,
a folderish object that is also a content type.

The container is a ProductCatalog and the contentish type is a Product.

How do I make it so that Product's can only be invokeFactory()'d from a
ProductCatalog?

Thanks,

// m

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