Plone / Zope Component Architecture: Unregister all broken persistent utilities

upgrades.py

# -*- coding: utf-8 -*-
from zope.component.hooks import getSite

import logging
log = logging.getLogger(__name__)


def unregister_broken_persistent_components(context):
    portal = getSite()
    sm = portal.getSiteManager()

    for item in sm._utility_registrations.items():
        if hasattr(item[1][0], '__Broken_state__'):
            # unregisterUtility(component, provided, name)
            # See: five.localsitemanager.registry.PersistentComponents.unregisterUtility  # noqa
            log.info(u"Unregistering component {0}".format(item))
            sm.unregisterUtility(item[1][0], item[0][0], item[0][1])