nk20-scripts/management/commands/check_consistency.py

44 lines
2.1 KiB
Python

# Copyright (C) 2018-2020 by BDE ENS Paris-Saclay
# SPDX-License-Identifier: GPL-3.0-or-later
from django.core.management import BaseCommand
from django.db.models import Sum, F
from note.models import Note, Transaction
from note.templatetags.pretty_money import pretty_money
class Command(BaseCommand):
def add_arguments(self, parser):
parser.add_argument('--sum-all', '-s', action='store_true', help='Check if the global sum is equal to zero')
parser.add_argument('--fix', '-f', action='store_true', help='Fix note balances')
def handle(self, *args, **options):
if options["sum_all"]:
s = Note.objects.aggregate(Sum("balance"))["balance__sum"]
if s:
self.stderr.write(self.style.NOTICE("LA SOMME DES NOTES NE VAUT PAS ZÉRO : " + pretty_money(s)))
exit(-1)
else:
self.stdout.write(self.style.SUCCESS("La somme des notes vaut bien zéro."))
exit(0)
error = False
for note in Note.objects.all():
balance = note.balance
incoming = Transaction.objects.filter(valid=True, destination=note)\
.annotate(total=F("quantity") * F("amount")).aggregate(Sum("total"))["total__sum"] or 0
outcoming = Transaction.objects.filter(valid=True, source=note)\
.annotate(total=F("quantity") * F("amount")).aggregate(Sum("total"))["total__sum"] or 0
calculated_balance = incoming - outcoming
if calculated_balance != balance:
self.stderr.write(self.style.NOTICE("LA SOMME DES TRANSACTIONS DE LA NOTE {} NE CORRESPOND PAS "
"AVEC LE MONTANT RÉEL".format(str(note))))
self.stderr.write(self.style.NOTICE("Attendu : {}, calculé : {}"
.format(pretty_money(balance), pretty_money(calculated_balance))))
if options["fix"]:
note.balance = calculated_balance
note.save()
error = True
exit(1 if error else 0)