Clear all timeline versions

clear-versions.py

from google.appengine.api import memcache
from google.appengine.ext import ndb
import models

memcache.flush_all()
opaqueID = "jsd-1"

s = models.DBSession.get_by_key_name(opaqueID)
s.timeline_version = 1
s.edit_timeline_version = None
s.put()

for sv in models.SessionVersion.query(models.SessionVersion.opaqueID == opaqueID):
  print sv
  sv.key.delete()

for tle in models.TimelineEvent.query(models.TimelineEvent.opaque_id == opaqueID).order(models.TimelineEvent.timeline_version, models.TimelineEvent.sequence_number):
  tle.key.delete()