Re: [Plone-developers] Registering an indexer for multiple types

[Jens W. K. <je...@bl...>]

On 2014-10-23 16:27, Alec Mitchell wrote:
> I don't think this is a bug per se, nor is it likely easily fixable.
> Note that actual adapter registration is done in zcml, the decorator
> simply wraps the function and add a _default_ context interface for the
> adapter.  To get adapters registered for different interfaces you will
> always need to perform multiple zcml (or grok) registrations, performing
> multiple function wrappings is neither useful nor necessary for this
> purpose.  You should be able to simplify a bit though:
>
> in python:
>
> @indexer(IATDocument)
> def country_indexer(context):
>      return _country_indexer(context)
>
> in zcml:
>
> <adapter name="getCountry" factory=".extender.country_indexer" />
> <adapter name="getCountry" factory=".extender.country_indexer"
>   for="Products.ATContentType.interfaces. IATFile" />
> …
>
indeed.

in order to make this work with one node in zcml it would need an own 
zcml-directive registering multiple adapters and a different way to 
annotate the interfaces to be adapted:

@indexer(IATDocument)
@indexer(IATNewsItem)
def country_indexer(context):
      return _country_indexer(context)

in zcml:

<indexer:register
     name="getCountry"
     factory=".extender.country_indexer" />

OR

@indexer(IATDocument, 'getCountry')
@indexer(IATNewsItem, 'getCountry')
def country_indexer(context):
      return _country_indexer(context)

(second parameter could be optional and default to the function name)

in zcml:

<indexer:register factory=".extender.country_indexer" />


Jens
-- 
Klein & Partner KG, member of BlueDynamics Alliance