Remove a broken contentrule after deinstalling ``collective.contentrules.comingsoon``

remove-broken-contentrule.py

"""Remove a broken contentrule after deinstalling ``collective.contentrules.comingsoon``
"""

# Create Fake Interface
from zope.component.interfaces import IObjectEvent
class IComingSoon(IObjectEvent): pass


# Create Fake Module
import sys
from types import ModuleType
sys.modules['collective.contentrules'] = ModuleType('collective.contentrules')
sys.modules['collective.contentrules.comingsoon'] = ModuleType('collective.contentrules.comingsoon')
sys.modules['collective.contentrules.comingsoon.interfaces'] = ModuleType('collective.contentrules.comingsoon.interfaces')
sys.modules['collective.contentrules.comingsoon.interfaces'].IComingSoon = IComingSoon


# Delete from persistent utility
from plone.contentrules.engine.interfaces import IRuleStorage
from zope.component import getUtility
storage = getUtility(IRuleStorage, context=app.Plone)

# Find out, which contentrule was broken. In my case it was ``rule-8``
del storage['rule-8']

# finally commit.
import transaction; transaction.commit()