[Zope-CMF] Re: Abusing GenericSetup during traditional installs

[Stefan H. Holek]

On 17. Aug 2006, at 15:50, yuppie wrote:

> My approach would be to improve the catalog adapters. Even if you  
> stick to the behavior implemented in setuphandlers.py it would have  
> been easier and more straight forward to implement it in a subclass  
> of ZCatalogXMLAdapter, overriding the default adapter.
>

I have tried this initially but found it impossible to "override" the  
existing adapter for IZCatalog. I always got complaints from the  
adapter machinery about duplicate registrations. I may be missing  
something here...


> But fixing some general catalog adapter issues will make your  
> special behavior obsolete:
>
> - The adapters should compare the new settings with the existing  
> ones and make sure indexes are only updated if they are actually  
> changed. This is not implemented so far.
>
> - The adapters should modify existing indexes if the profile  
> contains new settings. This is not implemented for the 'extra'  
> elements.
>
> - Reindexing might be very expensive. That's the reason why  
> GenericSetup does no reindexing, you have to do it manually. We  
> need a better solution for that, maybe some bookkeeping which  
> indexes need to be reindexed and a button in the setup tool that  
> triggers reindexing.

+1 on all accounts

Stefan


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