Select random image from a pull

[nicolas rochat]

Dear Chris,

I'm trying to use different images for different participants in my experiment.
For each image, the result should be recorded. 

To do so at each creating-session participant are match with a set of 5 images on for each round and save.

However, I'm not able to retrieve the image for each round, so obviously i miss something.

here is my code, any ideas? 
______________________________________

from otree.api import *

from glob2 import glob

import pandas as pd

import random

doc = """

Your app description

"""

round = 5

class C(BaseConstants):

NAME_IN_URL = 'faceDescription'

PLAYERS_PER_GROUP = None

NUM_ROUNDS = round

class Subsession(BaseSubsession):

pass

def creating_session(subsession: Subsession):

PicturePool = [i.split("/")[-1] for i in glob('_static/faceDescription/*jpg')]

if subsession.round_number == 1:

for p in subsession.get_players():

selected_img = random.choices(PicturePool,k=5)

PicturePool = [e for e in PicturePool if e not in selected_img]

print('player', p.id_in_subsession)

print(selected_img)

print(len(PicturePool))

p.participant.images = selected_img

class Group(BaseGroup):

pass

class Player(BasePlayer):

Nez_forme = models.StringField(choices = ["Normale","Épatée","Arrondie","Aquilin"],

label="Forme du nez :",

widget=widgets.RadioSelectHorizontal)

### Lèvre

levre_type = models.StringField(choices = ["Normales","Pulpeuses","Charnues","Fines"],

label="Type de lèvres :",

widget=widgets.RadioSelectHorizontal)

### Information

email = models.StringField(blank=True)

pseudo = models.StringField()

sexe_p = models.StringField(choices = ["Homme","Femme","Autre"], label = "Sexe", widget=widgets.RadioSelectHorizontal)

age_p = models.IntegerField(label = "Age")

photo_ID = models.StringField()

# PAGES

class Openning(Page):

def is_displayed(self):

return self.round_number == 1

pass

class ConsentForm(Page):

def is_displayed(self):

return self.round_number == 1

pass

class ConsignePage(Page):

def is_displayed(self):

return self.round_number == 1

pass

class participant(Page):

form_model = "player"

form_fields = ["pseudo", "sexe_p", "age_p"]

def is_displayed(self):

return self.round_number == 1

class MyPage(Page):

form_model = 'player'

form_fields = ['Nez_forme', 'levre_type']

@staticmethod

def vars_for_template(player: Player):

participant = player.participant

image = participant.images[player.round_number - 1]

player.photo_ID = image

return {'img_to_show': "faceDescription/{}".format(image)}

class Cloture(Page):

form_model = "player"

form_fields = ["email"]

def is_displayed(self):

return self.round_number == round ## fin de l'expérience

page_sequence = [

# Openning, ConsentForm, participant,

# ConsignePage,

MyPage, Cloture]

____________ setting part :

SESSION_CONFIGS = [

# dict(

# name='public_goods',

# app_sequence=['public_goods'],

# num_demo_participants=3,

# ),

dict(

name='faceDescription',

num_demo_participants=3,

app_sequence=['faceDescription'],

PARTICIPANT_FIELDS = ["images"]

),

]

______

[Chris @ oTree]

What is the error you are getting? Or how does the behavior of the program differ from your expectation?

Sent from my phone

On Mar 2, 2022, at 11:03 PM, nicolas rochat <nicolas....@gmail.com> wrote:

Dear Chris,

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[nicolas rochat]

Seem Participant as no attribute images Traceback (most recent call last):
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/uvicorn/protocols/http/h11_impl.py", line 396, in run_asgi
    result = await app(self.scope, self.receive, self.send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/uvicorn/middleware/proxy_headers.py", line 45, in __call__
    return await self.app(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/applications.py", line 112, in __call__
    await self.middleware_stack(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 26, in __call__
    await response(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/responses.py", line 226, in __call__
    (self.listen_for_disconnect, {"receive": receive}),
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/concurrency.py", line 24, in run_until_first_complete
    [task.result() for task in done]
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/concurrency.py", line 24, in <listcomp>
    [task.result() for task in done]
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/responses.py", line 216, in stream_response
    async for chunk in self.body_iterator:
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 56, in body_stream
    task.result()
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 38, in coro
    await self.app(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/errorpage.py", line 247, in __call__
    raise exc  # from None
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/errorpage.py", line 227, in __call__
    await self.app(scope, receive, _send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 25, in __call__
    response = await self.dispatch_func(request, self.call_next)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/middleware.py", line 42, in dispatch
    response = await call_next(request)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 45, in call_next
    task.result()
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/base.py", line 38, in coro
    await self.app(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/middleware/sessions.py", line 75, in __call__
    await self.app(scope, receive, send_wrapper)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/patch.py", line 41, in __call__
    raise exc  # from None
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/patch.py", line 29, in __call__
    await self.app(scope, receive, sender)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/routing.py", line 582, in __call__
    await route.handle(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/routing.py", line 243, in handle
    await self.app(scope, receive, send)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/views/abstract.py", line 111, in dispatch
    response = await run_in_threadpool(self.inner_dispatch, request)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/starlette/concurrency.py", line 40, in run_in_threadpool
    return await loop.run_in_executor(None, func, *args)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/views/abstract.py", line 418, in inner_dispatch
    return self.get()
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/views/abstract.py", line 481, in get
    context = self.get_context_data(form=form)
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/views/abstract.py", line 165, in get_context_data
    user_vars = self.call_user_defined('vars_for_template')
  File "/home/nrochat/anaconda3/envs/otree_lineup/lib/python3.7/site-packages/otree/views/abstract.py", line 88, in call_user_defined
    return getattr(type(self), method_name)(self.player, *args, **kwargs)
  File "/mnt/3A3E7D9E3E7D53BB/fac/Recherche/01_Crimino/01_Lineup/Database/otree_exp/otree_lineup/faceDescription/__init__.py", line 105, in vars_for_template

    image = participant.images[player.round_number - 1]

AttributeError: 'Participant' object has no attribute 'images'

[Chris @ oTree]

PARTICIPANT_FIELDS doesn’t go inside the session config, it is a separate setting.

Sent from my phone

On Mar 2, 2022, at 11:03 PM, nicolas rochat <nicolas....@gmail.com> wrote:

PARTICIPANT_FIELDS

[nicolas rochat]

Thanks, this solved this problem.

Any ideas why i don't have the data for each round?
 I think I'm lost here.