async def pre_disconnect(self, room_name, participant_label,
tab_unique_id):
if room_name in get_room_dict():
room = get_room_dict()[room_name]
else:
# doesn't get shown because not yet localized
await self.send_json(
{'error': 'Invalid room name "{}".'.format(room_name)})
return
# should use filter instead of get,
# because if the DB is recreated,
# the record could already be deleted
await database_sync_to_async(self.delete_visit)(
participant_label=participant_label,
room_name=room_name,
tab_unique_id=tab_unique_id,
)
event = {'status': 'remove_participant'}
if room.has_participant_labels():
if await database_sync_to_async(self.visit_exists)(
participant_label=participant_label, room_name=room_name):
return
# it's ok if there is a race condition --
# in JS removing a participant is idempotent
event['participant'] = participant_label
admin_group = channel_utils.room_admin_group_name(room_name)
await channel_utils.group_send_wrapper(group=admin_group,
type='roomadmin_update',
event=event)
def dispatch(self, request, room_name):
self.room_name = room_name
self.room = get_room_dict()[room_name]
if self.room.has_session():
return redirect('RoomWithSession', room_name)
return super().dispatch(request)
def get_room(self):
from otree.room import get_room_dict
try:
room_name = RoomToSession.objects.get(session=self).room_name
return get_room_dict()[room_name]
except RoomToSession.DoesNotExist:
return None
def handle(self, session_config_name, num_participants, room_name,
**kwargs):
session = create_session(
session_config_name=session_config_name,
num_participants=num_participants,
)
if room_name:
room = get_room_dict()[room_name]
room.set_session(session)
logger.info("Created session with code {} in room '{}'\n".format(
session.code, room_name))
else:
logger.info("Created session with code {}\n".format(session.code))
async def post_connect(self, room_name, participant_label, tab_unique_id):
if room_name in get_room_dict():
room = get_room_dict()[room_name]
else:
# doesn't get shown because not yet localized
await self.send_json(
{'error': 'Invalid room name "{}".'.format(room_name)})
return
if await database_sync_to_async(room.has_session)():
await self.room_session_ready()
else:
try:
await database_sync_to_async(
self.create_participant_room_visit)(
participant_label=participant_label,
room_name=room_name,
tab_unique_id=tab_unique_id,
last_updated=time.time(),
)
except django.db.IntegrityError:
# possible that the tab connected twice
# without disconnecting in between
# because of WebSocket failure
# tab_unique_id is unique=True,
# so this will throw an integrity error.
# 2017-09-17: I saw the integrityerror on macOS.
# previously, we logged this, but i see no need to do that.
pass
await channel_utils.group_send_wrapper(
type='roomadmin_update',
group=channel_utils.room_admin_group_name(room_name),
event={
'status': 'add_participant',
'participant': participant_label
},
)
async def post_connect(self, room):
room_object = get_room_dict()[room]
now = time.time()
stale_threshold = now - 15
present_list = await database_sync_to_async(self.get_list)(
room_name=room_object.name, last_updated__gte=stale_threshold)
await self.send_json({
'status': 'load_participant_lists',
'participants_present': present_list
})
# prune very old visits -- don't want a resource leak
# because sometimes not getting deleted on WebSocket disconnect
very_stale_threshold = now - 10 * 60
await database_sync_to_async(self.delete_old_visits
)(room_name=room_object.name,
last_updated__lt=very_stale_threshold)
def dispatch(self, request, room):
self.room_name = room
try:
room = get_room_dict()[self.room_name]
except KeyError:
return HttpResponseNotFound('Invalid room specified in url')
label = self.request.GET.get('participant_label', '')
if room.has_participant_labels():
if label:
missing_label = False
invalid_label = label not in room.get_participant_labels()
else:
missing_label = True
invalid_label = False
# needs to be easy to re-enter label, in case we are in kiosk
# mode
if missing_label or invalid_label and not room.use_secure_urls:
return render(
request,
"otree/RoomInputLabel.html",
{'invalid_label': invalid_label},
)
if room.use_secure_urls:
hash = self.request.GET.get('hash')
if hash != make_hash(label):
return HttpResponseNotFound(
'Invalid hash parameter. use_secure_urls is True, '
'so you must use the participant-specific URL.')
session = room.get_session()
if session is None:
self.tab_unique_id = otree.common.random_chars_10()
self._socket_url = channel_utils.room_participant_path(
room_name=self.room_name,
participant_label=label,
# random chars in case the participant has multiple tabs open
tab_unique_id=self.tab_unique_id,
)
return render(
request,
"otree/WaitPageRoom.html",
{
'view': self,
'title_text': _('Venligst vent..'),
'body_text': _('Venter på spillet..'),
},
)
if label:
cookies = None
else:
cookies = request.session
# 2017-08-02: changing the behavior so that even in a room without
# participant_label_file, 2 requests for the same start URL with same label
# will return the same participant. Not sure if the previous behavior
# (assigning to 2 different participants) was intentional or bug.
return participant_start_page_or_404(session,
label=label,
cookies=cookies)
def create_session(
session_config_name,
*,
num_participants,
label='',
room_name=None,
is_mturk=False,
is_demo=False,
edited_session_config_fields=None,
) -> Session:
num_subsessions = 0
edited_session_config_fields = edited_session_config_fields or {}
try:
session_config = SESSION_CONFIGS_DICT[session_config_name]
except KeyError:
msg = 'Spil type "{}" not found in settings.SESSION_CONFIGS.'
raise KeyError(msg.format(session_config_name)) from None
else:
# copy so that we don't mutate the original
# .copy() returns a dict, so need to convert back to SessionConfig
session_config = SessionConfig(session_config.copy())
session_config.update(edited_session_config_fields)
# check validity and converts serialized decimal & currency values
# back to their original data type (because they were serialized
# when passed through channels
session_config.clean()
with transaction.atomic():
# 2014-5-2: i could implement this by overriding the __init__ on the
# Session model, but I don't really know how that works, and it seems
# to be a bit discouraged: http://goo.gl/dEXZpv
# 2014-9-22: preassign to groups for demo mode.
# check that it divides evenly
session_lcm = session_config.get_lcm()
if num_participants is None:
# most games are multiplayer, so if it's under 2, we bump it to 2
num_participants = max(session_lcm, 2)
else:
if num_participants % session_lcm:
msg = ('Spil type {}: Antal spillere ({}) is not a multiple '
'of group size ({})').format(session_config['name'],
num_participants,
session_lcm)
raise ValueError(msg)
if is_mturk:
mturk_num_participants = (num_participants /
settings.MTURK_NUM_PARTICIPANTS_MULTIPLE)
else:
mturk_num_participants = -1
session = Session.objects.create(
config=session_config,
label=label,
is_demo=is_demo,
num_participants=num_participants,
mturk_num_participants=mturk_num_participants,
) # type: Session
Participant.objects.bulk_create([
Participant(id_in_session=id_in_session, session=session)
for id_in_session in list(range(1, num_participants + 1))
])
participant_values = session.participant_set.order_by('id').values(
'code', 'id')
ParticipantLockModel.objects.bulk_create([
ParticipantLockModel(participant_code=participant['code'])
for participant in participant_values
])
participant_to_player_lookups = []
page_index = 0
for app_name in session_config['app_sequence']:
views_module = common.get_pages_module(app_name)
models_module = get_models_module(app_name)
Constants = models_module.Constants
num_subsessions += Constants.num_rounds
round_numbers = list(range(1, Constants.num_rounds + 1))
Subsession = models_module.Subsession
Group = models_module.Group
Player = models_module.Player
Subsession.objects.bulk_create([
Subsession(round_number=round_number, session=session)
for round_number in round_numbers
])
subsessions = (Subsession.objects.filter(
session=session).order_by('round_number').values(
'id', 'round_number'))
ppg = Constants.players_per_group
if ppg is None or Subsession._has_group_by_arrival_time():
ppg = num_participants
num_groups_per_round = int(num_participants / ppg)
groups_to_create = []
for subsession in subsessions:
for id_in_subsession in range(1, num_groups_per_round + 1):
groups_to_create.append(
Group(
session=session,
subsession_id=subsession['id'],
round_number=subsession['round_number'],
id_in_subsession=id_in_subsession,
))
Group.objects.bulk_create(groups_to_create)
groups = (Group.objects.filter(session=session).values(
'id_in_subsession', 'subsession_id',
'id').order_by('id_in_subsession'))
groups_lookup = defaultdict(list)
for group in groups:
subsession_id = group['subsession_id']
groups_lookup[subsession_id].append(group['id'])
players_to_create = []
for subsession in subsessions:
subsession_id = subsession['id']
round_number = subsession['round_number']
participant_index = 0
for group_id in groups_lookup[subsession_id]:
for id_in_group in range(1, ppg + 1):
participant = participant_values[participant_index]
players_to_create.append(
Player(
session=session,
subsession_id=subsession_id,
round_number=round_number,
participant_id=participant['id'],
group_id=group_id,
id_in_group=id_in_group,
))
participant_index += 1
# Create players
Player.objects.bulk_create(players_to_create)
players_flat = Player.objects.filter(session=session).values(
'id',
'participant__code',
'participant__id',
'subsession__id',
'round_number',
)
players_by_round = [[] for _ in range(Constants.num_rounds)]
for p in players_flat:
players_by_round[p['round_number'] - 1].append(p)
for round_number, round_players in enumerate(players_by_round,
start=1):
for View in views_module.page_sequence:
page_index += 1
for p in round_players:
participant_code = p['participant__code']
url = View.get_url(
participant_code=participant_code,
name_in_url=Constants.name_in_url,
page_index=page_index,
)
participant_to_player_lookups.append(
ParticipantToPlayerLookup(
participant_id=p['participant__id'],
participant_code=participant_code,
page_index=page_index,
app_name=app_name,
player_pk=p['id'],
subsession_pk=p['subsession__id'],
session_pk=session.pk,
url=url,
))
ParticipantToPlayerLookup.objects.bulk_create(
participant_to_player_lookups)
session.participant_set.update(_max_page_index=page_index)
with otree.db.idmap.use_cache():
# possible optimization: check if
# Subsession.creating_session == BaseSubsession.creating_session
# if so, skip it.
# but this will only help people who didn't override creating_session
# in that case, the session usually creates quickly, anyway.
for subsession in session.get_subsessions():
subsession.before_session_starts()
subsession.creating_session()
otree.db.idmap.save_objects()
# 2017-09-27: moving this inside the transaction
session._set_admin_report_app_names()
session.save()
# we don't need to mark it ready=True here...because it's in a
# transaction
# this should happen after session.ready = True
if room_name is not None:
from otree.room import get_room_dict
room = get_room_dict()[room_name]
room.set_session(session)
return session
def post(self, request, room_name):
self.room = get_room_dict()[room_name]
self.room.set_session(None)
# in case any failed to be cleared through regular ws.disconnect
ParticipantRoomVisit.objects.filter(room_name=room_name).delete()
return redirect('RoomWithoutSession', room_name)