[Grok-dev] Question about initialing grok.GlobalUtility with data from application containers
rmoskal at mostmedia.com
Mon Sep 15 09:36:08 EDT 2008
You are right Martin, I can just call the application object, and traverse my
content objects. duh.
Martijn Faassen-2 wrote:
> rmoskal wrote:
>> The only way I can think to get this done is to actually pass the
>> articles/placements context to the method where I test the validity of a
>> placement. I can set a flag to indicate if the GlobalUtility has been
>> intialized, and load up the existing data exactly once. This seems
>> unsatisfying. Can anyone suggest a more elegant way?
>> It seems like a common use case.
> I'm still trying to understand the use case. Could you perhaps give an
> example of a business rule you want to enforce?
> I'm just going to list random ideas that come to mind in the hopes that
> one works as an answer to you question:
> * you can do grok.getSite() within the global utility code to get the
> site object; you might be able to traverse to your content that way,
> say: grok.getSite()['placements'] to get to your placements container.
> * you could catalog your content objects and do a query in the global
> * you could instead of a global utility perhaps get away with doing this
> in an IObjectAddedEvent handler.
> * it is, I believe, also possible to register a placements containerr as
> a local utility directly, though this will need to be done through the
> API - I don't think Grok will help much here. You could then define the
> business rules on the placements container and just look it up using
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> Grok-dev at zope.org
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