8
0
Fork 0
mirror of https://gitlab2.federez.net/re2o/re2o synced 2024-12-27 01:13:46 +00:00
re2o/cotisations/payment_methods/balance/models.py

121 lines
4.1 KiB
Python
Raw Normal View History

# -*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au rezometz. Il
# se veut agnostique au réseau considéré, de manière à être installable en
# quelques clics.
#
# Copyright © 2018 Hugo Levy-Falk
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from django.db import models
from django.shortcuts import redirect
from django.urls import reverse
2018-06-23 17:54:20 +00:00
from django.utils.translation import ugettext_lazy as _
from django.contrib import messages
from cotisations.models import Paiement
from cotisations.payment_methods.mixins import PaymentMethodMixin
class BalancePayment(PaymentMethodMixin, models.Model):
"""
The model allowing you to pay with a cheque.
"""
class Meta:
2018-06-23 17:54:20 +00:00
verbose_name = _("user balance")
payment = models.OneToOneField(
Paiement,
on_delete=models.CASCADE,
related_name='payment_method',
editable=False
)
minimum_balance = models.DecimalField(
2018-06-23 17:54:20 +00:00
verbose_name=_("Minimum balance"),
help_text=_("The minimal amount of money allowed for the balance"
" at the end of a payment. You can specify negative "
"amount."
),
max_digits=5,
decimal_places=2,
default=0,
)
maximum_balance = models.DecimalField(
2018-06-23 17:54:20 +00:00
verbose_name=_("Maximum balance"),
help_text=_("The maximal amount of money allowed for the balance."),
max_digits=5,
decimal_places=2,
default=50,
blank=True,
null=True,
)
credit_balance_allowed = models.BooleanField(
2018-06-23 17:54:20 +00:00
verbose_name=_("Allow user to credit their balance"),
default=False,
)
def end_payment(self, invoice, request):
"""Changes the user's balance to pay the invoice. If it is not
possible, shows an error and invalidates the invoice.
"""
user = invoice.user
total_price = invoice.prix_total()
if float(user.solde) - float(total_price) < self.minimum_balance:
invoice.valid = False
invoice.save()
messages.error(
request,
_("Your balance is too low for this operation.")
)
return redirect(reverse(
'users:profil',
kwargs={'userid': user.id}
))
return invoice.paiement.end_payment(
invoice,
request,
use_payment_method=False
)
2018-07-05 13:21:51 +00:00
def valid_form(self, form):
"""Checks that there is not already a balance payment method."""
2018-07-05 13:21:51 +00:00
p = Paiement.objects.filter(is_balance=True)
if len(p) > 0:
form.add_error(
'payment_method',
2018-06-23 17:54:20 +00:00
_("There is already a payment method for user balance.")
2018-07-05 13:21:51 +00:00
)
def alter_payment(self, payment):
"""Register the payment as a balance payment."""
2018-07-05 13:21:51 +00:00
self.payment.is_balance = True
def check_price(self, price, user, *args, **kwargs):
"""Checks that the price meets the requirement to be paid with user
balance.
"""
return (
float(user.solde) - float(price) >= self.minimum_balance,
_("Your balance is too low for this operation.")
)
def can_credit_balance(self, user_request):
return (
len(Paiement.find_allowed_payments(user_request)
.exclude(is_balance=True)) > 0
) and self.credit_balance_allowed
2018-06-23 17:54:20 +00:00