borismattijssen/information-retrieval repository overview

pip3 install -U otree
otree startproject oTree
cd oTree
otree devserver

from otree.api import (
    models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer,
    Currency
)

class Constants(BaseConstants):
    players_per_group = 3
    num_rounds = 3
    name_in_url = 'guess_two_thirds'

    jackpot = Currency(100)
    guess_max = 100


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    two_thirds_avg = models.FloatField()
    best_guess = models.IntegerField()
    num_winners = models.IntegerField()

    def set_payoffs(self):
        players = self.get_players()
        guesses = [p.guess for p in players]
        two_thirds_avg = (2 / 3) * sum(guesses) / len(players)
        self.two_thirds_avg = round(two_thirds_avg, 2)

        self.best_guess = min(guesses,
            key=lambda guess: abs(guess - self.two_thirds_avg))

        winners = [p for p in players if p.guess == self.best_guess]
        self.num_winners = len(winners)

        for p in winners:
            p.is_winner = True
            p.payoff = Constants.jackpot / self.num_winners

    def two_thirds_avg_history(self):
        return [g.two_thirds_avg for g in self.in_previous_rounds()]


class Player(BasePlayer):
    guess = models.IntegerField(min=0, max=Constants.guess_max)
    is_winner = models.BooleanField(initial=False)

from otree.api import Page, WaitPage


class Introduction(Page):
    def is_displayed(self):
        return self.round_number == 1


class Guess(Page):
    form_model = 'player'
    form_fields = ['guess']


class ResultsWaitPage(WaitPage):
    def after_all_players_arrive(self):
        self.group.set_payoffs()


class Results(Page):
    def vars_for_template(self):
        sorted_guesses = sorted(p.guess for p in self.group.get_players())

        return {'sorted_guesses': sorted_guesses}


page_sequence = [Introduction,
                 Guess,
                 ResultsWaitPage,
                 Results]

from otree.api import Bot, SubmissionMustFail
from . import pages
from .models import Constants

class PlayerBot(Bot):
    cases = ['p1_wins', 'p1_and_p2_win']

    def play_round(self):
        if self.round_number == 1:
            yield (pages.Introduction)

        if self.case == 'p1_wins':
            if self.player.id_in_group == 1:
                for invalid_guess in [-1, 101]:
                    yield SubmissionMustFail(pages.Guess, {"guess": invalid_guess})
                yield (pages.Guess, {"guess": 9})
                assert self.player.payoff == Constants.jackpot
                assert 'you win' in self.html
            else:
                yield (pages.Guess, {"guess": 10})
                assert self.player.payoff == 0
                assert 'you did not win' in self.html
        else:
            if self.player.id_in_group in [1, 2]:
                yield (pages.Guess, {"guess": 9})
                assert self.player.payoff == Constants.jackpot / 2
                assert 'you are one of the 2 winners' in self.html
            else:
                yield (pages.Guess, {"guess": 10})
                assert self.player.payoff == 0
                assert 'you did not win' in self.html

        yield (pages.Results)