nk20/apps/wei/management/commands/wei_algorithm.py

58 lines
2.2 KiB
Python
Raw Normal View History

# Copyright (C) 2018-2021 by BDE ENS Paris-Saclay
2020-05-14 13:16:10 +00:00
# SPDX-License-Identifier: GPL-3.0-or-later
from argparse import ArgumentParser, FileType
2020-05-14 13:16:10 +00:00
from django.core.management import BaseCommand
from django.db import transaction
from ...forms import CurrentSurvey
2020-05-14 13:16:10 +00:00
class Command(BaseCommand):
help = "Attribute to each first year member a bus for the WEI"
def add_arguments(self, parser: ArgumentParser):
parser.add_argument('--doit', '-d', action='store_true', help='Finally run the algorithm in non-dry mode.')
parser.add_argument('--output', '-o', nargs='?', type=FileType('w'), default=self.stdout,
help='Output file for the algorithm result. Default is standard output.')
@transaction.atomic
2020-05-14 13:16:10 +00:00
def handle(self, *args, **options):
"""
Run the WEI algorithm to attribute a bus to each first year member.
"""
sid = transaction.savepoint()
algorithm = CurrentSurvey.get_algorithm_class()()
try:
from tqdm import tqdm
display_tqdm = True
except ImportError:
display_tqdm = False
algorithm.run_algorithm(display_tqdm=display_tqdm)
output = options['output']
registrations = algorithm.get_registrations()
per_bus = {bus: [r for r in registrations if 'selected_bus_pk' in r.information
and r.information['selected_bus_pk'] == bus.pk]
for bus in algorithm.get_buses()}
for bus, members in per_bus.items():
output.write(bus.name + "\n")
output.write("=" * len(bus.name) + "\n")
order = -1
for r in members:
survey = CurrentSurvey(r)
for order, (b, _score) in enumerate(survey.ordered_buses()):
if b == bus:
break
output.write(f"{r.user.username} ({order + 1})\n")
output.write("\n")
if not options['doit']:
self.stderr.write(self.style.WARNING("Running in dry mode. "
"Use --doit option to really execute the algorithm."))
transaction.savepoint_rollback(sid)
return