[Zope] Pointer-to-Object Properties

[Toby Dickenson]

> From: Michael Bernstein [mailto:mbernstein@profitscape.net]

> It would be very beneficial to be able to 'point' to 
> arbitrary objects as if they
> were sub objects, thus enabling one-to-many, many-to-one, and 
> many-to-many
> relationships not constrained by the object heirarchy.
> 
> Classic example: Many author objects, many book objects. 
> Authors can have written
> several books, and certain books are collaborations with more 
> than one author. It
> does not make sense for books to be contained within authors, 
> or authors to be
> contained within books.
> 
> While this simplistic scenario would allow us to either 
> assign a list property
> with  book titles to an author object, or a list property 
> containing authors names
> to a book object, and live with the small amount of 
> duplicated data

I think the key observation here is that the additional information
should be sufficient to identify the foreign object.... then the
pointed-to object can be located by searching a Catalog.