def draw_prize(prize, seed=None):
eligible = prize.eligible_donors()
if prize.maxed_winners():
if prize.maxwinners == 1:
return False, {"error": "Prize: " + prize.name + " already has a winner."}
else:
return False, {"error": "Prize: " + prize.name + " already has the maximum number of winners allowed."}
if not eligible:
return False, {"error": "Prize: " + prize.name + " has no eligible donors."}
else:
rand = None
try:
rand = random.Random(seed)
except TypeError: # not sure how this could happen but hey
return False, {'error': 'Seed parameter was unhashable'}
psum = reduce(lambda a, b: a + b['weight'], eligible, 0.0)
result = rand.random() * psum
ret = {'sum': psum, 'result': result}
for d in eligible:
if result < d['weight']:
try:
donor = Donor.objects.get(pk=d['donor'])
acceptDeadline = datetime.datetime.today().replace(tzinfo=util.anywhere_on_earth_tz(), hour=23,
minute=59, second=59) + datetime.timedelta(days=prize.event.prize_accept_deadline_delta)
winRecord, created = PrizeWinner.objects.get_or_create(
prize=prize, winner=donor, acceptdeadline=acceptDeadline)
if not created:
winRecord.pendingcount += 1
ret['winner'] = winRecord.winner.id
winRecord.save()
except Exception as e:
return False, {"error": "Error drawing prize: " + prize.name + ", " + str(e)}
return True, ret
result -= d['weight']
return False, {"error": "Prize drawing algorithm failed."}
def accept_deadline_date(self):
"""Return the actual calendar date associated with the accept deadline"""
if self.acceptdeadline:
return self.acceptdeadline.astimezone(
util.anywhere_on_earth_tz()).date()
else:
return None
def draw_prize(prize, seed=None):
eligible = prize.eligible_donors()
if prize.maxed_winners():
if prize.maxwinners == 1:
return False, {
"error": "Prize: " + prize.name + " already has a winner."
}
else:
return False, {
"error":
"Prize: " + prize.name +
" already has the maximum number of winners allowed."
}
if not eligible:
return False, {
"error": "Prize: " + prize.name + " has no eligible donors."
}
else:
rand = None
try:
rand = random.Random(seed)
except TypeError: # not sure how this could happen but hey
return False, {'error': 'Seed parameter was unhashable'}
psum = reduce(lambda a, b: a + b['weight'], eligible, 0.0)
result = rand.random() * psum
ret = {'sum': psum, 'result': result}
for d in eligible:
if result < d['weight']:
try:
donor = Donor.objects.get(pk=d['donor'])
acceptDeadline = datetime.datetime.today().replace(
tzinfo=util.anywhere_on_earth_tz(),
hour=23,
minute=59,
second=59) + datetime.timedelta(
days=prize.event.prize_accept_deadline_delta)
winRecord, created = PrizeWinner.objects.get_or_create(
prize=prize,
winner=donor,
acceptdeadline=acceptDeadline)
if not created:
winRecord.pendingcount += 1
ret['winner'] = winRecord.winner.id
winRecord.save()
except Exception as e:
return False, {
"error":
"Error drawing prize: " + prize.name + ", " + str(e)
}
return True, ret
result -= d['weight']
return False, {"error": "Prize drawing algorithm failed."}
def accept_deadline_date(self):
"""Return the actual calendar date associated with the accept deadline"""
if self.acceptdeadline:
return self.acceptdeadline.astimezone(util.anywhere_on_earth_tz()).date()
else:
return None
