[Grok-dev] Re: LocalUtility Woes

Martijn Faassen faassen at startifact.com
Tue Sep 18 15:33:10 EDT 2007


 > 18 sep 2007 kl. 13.19 skrev Jan-Wijbrand Kolman:
 >> Not sure, but, would
 >> http://svn.zope.org/zope.app.generations/trunk/src/zope/app/generations/
 >> help in these cases?

Sebastian Ware wrote:
> From what I have understood about zope.app.generations it is more a 
> data transformation component. You write the code to transform your 
> persistent objects from one generation to another. The component keeps 
> track of what generation the individual objects belong to and perform 
> the transformation transparently as needed.

That's probably the most common use case. That said, I think it can 
probably also be used to update and install utilities where needed. I 
sketched out another methods particular to utilities in another message 
that I think may be more appropriate in some cases (especially during 
development; during production upgrade a generation may make more sense).

We should eventually analyze generations, see whether we need to grokify 
it to make it easier, and at the very least add some easy tutorial 
somewhere on the grok site.



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