def get_previous_meetings(cooldown=MEETING_COOLDOWN_WEEKS):
meetings = defaultdict(list)
# get all meeting specs from x weeks ago til now
time_threshold_for_meetings = datetime.now() - timedelta(weeks=cooldown)
meeting_spec_keys = [
spec.key for spec in MeetingSpec.query(
MeetingSpec.datetime > time_threshold_for_meetings).fetch()
]
logging.info('Previous Meeting History: ')
logging.info([
meeting.get().datetime.strftime("%Y-%m-%d %H:%M")
for meeting in meeting_spec_keys
])
if meeting_spec_keys == []:
return set([])
# get all meetings from meeting specs
meeting_keys = [
meeting.key for meeting in Meeting.query().filter(
Meeting.meeting_spec.IN(meeting_spec_keys)).fetch()
]
if meeting_keys == []:
return set([])
# get all participants from meetings
participants = MeetingParticipant.query().filter(
MeetingParticipant.meeting.IN(meeting_keys)).fetch()
if participants == []:
return set([])
# group by meeting Id
for participant in participants:
meetings[participant.meeting.id()].append(participant.user)
# ids are sorted, all matches should be in increasing order by id for the matching algorithm to work
disallowed_meetings = set([
tuple(sorted(meeting, key=lambda Key: Key.id()))
for meeting in meetings.values()
])
logging.info('Past Meetings')
logging.info([
tuple([meeting.get().get_username() for meeting in meeting])
for meeting in disallowed_meetings
])
disallowed_meetings = {
tuple([meeting.id() for meeting in meeting])
for meeting in disallowed_meetings
}
return disallowed_meetings
def send_match_emails():
specs = get_specs_for_current_week()
for spec in specs:
matches = []
meetings = Meeting.query(Meeting.meeting_spec == spec.key).fetch()
for meeting in meetings:
participants = MeetingParticipant.query(MeetingParticipant.meeting == meeting.key).fetch()
matches.append((participants[0].user.get(), participants[1].user.get()))
logging.info(spec)
logging.info(matches)
send_batch_meeting_confirmation_email(matches, spec)
return "OK"
def metrics_api():
keys_only = ndb.QueryOptions(keys_only=True)
meeting_subscriptions = MeetingSubscription.query().fetch()
metrics = []
for subscription in meeting_subscriptions:
data = {
'title':
subscription.title,
'subscribed':
UserSubscriptionPreferences.query(
UserSubscriptionPreferences.subscription ==
subscription.key).count(options=keys_only),
'meetings':
Meeting.query().count(options=keys_only),
}
metrics.append(data)
return json.dumps(metrics)