[Zope3-Users] how to model a 1-to-1 relation

[john saponara]

I want to allow the user to create car and driver objects in a 
limoService container.  Car objects will stand alone, but each driver 
object should contain a car object by reference (not by value) and the 
driver add form should allow the user to choose which car the new driver 
object will have.  Should IDriver's car attribute be a schema.Object or 
a schema.Choice?

Thanks
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