Re: KeyError upgrading plone.directives.form from 1.0 to 1.1 on Plone 4.2

Héctor Velarde wrote:
> we solved the issue by reindexing the whole relations catalog using
> this code mentioned by Vincent on his answer:
>
> from plone import api
>     from z3c.relationfield.event import updateRelations
>     from z3c.relationfield.interfaces import IHasRelations
>     from zc.relation.interfaces import ICatalog
>     from zope.component import getUtility
>
>
>     def reindex_relations(context):
>         """Clear the relation catalog to fix issues with interfaces
> that don't
>         exist anymore.
>         """
>         rcatalog = getUtility(ICatalog)
>         rcatalog.clear()
>         catalog = api.portal.get_tool('portal_catalog')
>         brains =
> catalog.searchResults(object_provides=IHasRelations.__identifier__)
>         for brain in brains:
>             obj = brain.getObject()
>             updateRelations(obj, None)
>
> and I took about half an hour to fix a site with around 50,000
> matching objects.

Possibly, the references to the missing classes are stored only in the
catalog object. In the best case, fixing the catalog would be only about
replacing a few keys or values there. May not be trivial, but the speed
difference would make it something to consider.

Regards
Asko

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