[Zope3-dev] Re: [Zope] Zope (X)3 FAQ

[Steve Alexander]

> Will there be a "standard" way of updating existing instances to
> changes in the python source?

You can use the __setstate__ hook for this.


> Upto now I my python classes have a refresh() method wich updates
> instances which are already in ZODB. I prefere this explizit method to
> the implicit update when the object gets unpickled.

Ok. Can you explain exactly what your refresh() method does?


> I think we just need to agree on the name of this method.

There could be a way for some code to get from the ZODB an iterator of 
all instances that are of a particular class. Each instance can be 
updated, and then the transaction committed. Is this the kind of thing 
you have in mind?

This mechanism would be used by a refresh() method. I don't know where a 
refresh() method would go, though. Perhaps you're asking for some kind 
of IManageableProduct interface that a product can implement to have a 
standard "product management" screen in Zope.

--
Steve Alexander