[Zope3-Users] Best way to represent a foreign key in ZODB

[Michael Howitz]

Am 03.03.2009 um 21:53 schrieb Massimiliano della Rovere:
> What is the best way to represent a "foreign key"? a  
> persistent.wref? an intid number?
>
> Suppose I have a persistent class representing an art object author  
> (A) and another persistent class representing an art object (B).
>
> If I want to create links from one instance of one A to instances of  
> class B (and vice versa) what do you recommend me?
>
>
> It would be great having the possibility of referring attributes and  
> methods of the object:
> is w is a reference to an instance of A, w.name and w.surname for  
> example...

You might have a look at http://pypi.python.org/pypi/gocept.reference

Yours sincerely,
-- 
Michael Howitz · mh at gocept.com · software developer
gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany
http://gocept.com · tel +49 345 1229889 8 · fax +49 345 1229889 1
Zope and Plone consulting and development

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