def random_species_with_multiple_photos(user = None):
if user is not None:
# Use set difference to avoid returning a species user has seen in
# the past 100 goes
species_set = USER_NOTSEEN_TEMP_SET % user.username
r.sdiffstore(species_set, SPECIES_SET, USER_SEEN_SET % user.username)
else:
species_set = SPECIES_SET
while True:
pk = r.srandmember(species_set)
if pk is None:
update_redis_set()
pk = r.srandmember(species_set)
if pk is None:
raise ValueError('No species has more than 1 visible photo')
try:
return Species.objects.get(pk = pk)
except Species.DoesNotExist:
r.srem(species_set, pk)
def process_submission(request):
# Process the previous submission
try:
options = signed.loads(request.POST.get('options', ''))
except ValueError:
return {}
if (int(time.time()) - options['time']) > (5 * 60):
return {} # Form is too old
if not utils.check_token(options['token']):
return {} # Token invalid
species_pk = options['species']
contestants = options['contestants']
winner = int(request.POST.get('winner', ''))
if not winner:
return {}
loser = (set(contestants) - set([winner])).pop()
# Record a win!
context = utils.record_win(species_pk, winner, loser)
if not request.user.is_anonymous():
utils.record_contribution_from(request.user.username)
photos = Photo.objects.select_related(
'created_by'
).in_bulk([winner, loser])
last_species = Species.objects.get(pk = species_pk)
description = '''
%s: <a href="%s">%s</a>: <a href="%s"><img src="%s"></a> beat
<a href="%s"><img src="%s"></a>
''' % (
str(datetime.datetime.now()),
last_species.get_absolute_url(),
last_species.common_name,
photos[winner].get_absolute_url(),
photos[winner].thumb_75_url(),
photos[loser].get_absolute_url(),
photos[loser].thumb_75_url(),
)
if not request.user.is_anonymous():
description += ' (rated by <a href="%s">%s</a>)' % (
request.user.username, request.user.username
)
# And record the species so we don't show it to them multiple times
set_key = utils.USER_SEEN_SET % request.user.username
list_key = utils.USER_SEEN_LIST % request.user.username
r.push(list_key, species_pk, head=True)
r.sadd(set_key, species_pk)
if r.scard(set_key) >= SEEN_SPECIES_COUNT:
r.srem(set_key, r.pop(list_key, tail=True))
r.push('bestpic-activity', description, head=True)
r.ltrim('bestpic-activity', 0, 200)
context.update({
'last_species': last_species,
'last_winner': photos[winner],
'last_loser': photos[loser],
'show_link_to_best': utils.species_has_top_10(last_species),
})
return context
