How to clean up old interfaces on zc.relation catalog?

Question

I was using plone.directives.form version 1.0 with Plone 4.2.5 and after upgrading to 4.2.6 I started seeing the following traceback and I guess its due to plone.

Answer 1

In case someone runs into this type of problem and cannot bring the old package back, here's another approach:

import transaction

from AccessControl.SecurityManagement import newSecurityManager
from AccessControl.User import system

from Testing.makerequest import makerequest

from zope.component.hooks import setSite
from zope.globalrequest import setRequest

from zc.relation.interfaces import ICatalog
from z3c.relationfield.event import _relations
from z3c.relationfield.event import _setRelation
from zope.component import getUtility

app = makerequest(app)
newSecurityManager(None, system)
portal = app.Plone
setSite(portal)
portal.REQUEST['PARENTS'] = [portal]
portal.REQUEST.setVirtualRoot('/')
setRequest(portal.REQUEST)

THRESHOLD = 100

relations_catalog = getUtility(ICatalog)

paths = ['/'.join(r.from_object.getPhysicalPath())
         for r in relations_catalog.findRelations() if r.from_object]

relations_catalog.clear()

counter = 0
for path in paths:
    obj = app.unrestrictedTraverse(path)
    for name, relation in _relations(obj):
        _setRelation(obj, name, relation)
    counter += 1
    if counter % THRESHOLD == 0:
        transaction.savepoint()
transaction.commit()