def _getSessions(self, webSafeKey):
"""Get all sessions from a conference."""
confkey = ndb.Key(urlsafe=webSafeKey)
# check if this key belongs to an actual conference
if not confkey:
raise endpoints.NotFoundException('No conference found with this key.')
# retrieve all sessions from ancestor conferences, using
# an ndb class method actual query is faster
return Session.get_session_by_conferencekey(confkey)
def _setFeaturedSpeaker(speaker, webSafeKey):
"""This will check if the speaker is featured in more
than one session then it will create an anouncement
assigning it to memcache.
"""
# get all existing sessions
confkey = ndb.Key(urlsafe=webSafeKey)
all_sessions = Session.get_session_by_conferencekey(confkey)
# check to see if speaker is present already in other sessions
speaker_sessions = all_sessions.filter(Session.speaker == speaker)
if speaker_sessions.count() > 1:
announcement = '%s %s %s %s' % (
'This speaker is very popular:',
speaker,
'. He is featured in these sessions:',
', '.join(sess.name for sess in speaker_sessions))
memcache.set(FEATURED_SPEAKER_SESSIONS_KEY, announcement)
else:
# delete the memcache announcements entry
announcement = ""
memcache.delete(FEATURED_SPEAKER_SESSIONS_KEY)
return announcement
