mirror of
https://gitlab2.federez.net/re2o/re2o
synced 2024-11-22 11:23:10 +00:00
106 lines
3.8 KiB
Python
106 lines
3.8 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. Il
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# se veut agnostique au réseau considéré, de manière à être installable en
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# quelques clics.
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#
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# Copyright © 2018 Hugo Levy-Falk
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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from django.db import models
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from django.shortcuts import redirect
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from django.urls import reverse
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from django.utils.translation import ugettext_lazy as _
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from django.contrib import messages
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from cotisations.models import Paiement
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from cotisations.payment_methods.mixins import PaymentMethodMixin
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class BalancePayment(PaymentMethodMixin, models.Model):
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"""
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The model allowing you to pay with a cheque.
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"""
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class Meta:
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verbose_name = _("user balance")
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payment = models.OneToOneField(
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Paiement,
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on_delete=models.CASCADE,
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related_name="payment_method_balance",
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editable=False,
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)
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minimum_balance = models.DecimalField(
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verbose_name=_("minimum balance"),
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help_text=_(
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"The minimal amount of money allowed for the balance at the end"
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" of a payment. You can specify a negative amount."
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),
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max_digits=5,
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decimal_places=2,
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default=0,
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)
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maximum_balance = models.DecimalField(
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verbose_name=_("maximum balance"),
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help_text=_("The maximal amount of money allowed for the balance."),
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max_digits=5,
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decimal_places=2,
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default=50,
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blank=True,
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null=True,
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)
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credit_balance_allowed = models.BooleanField(
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verbose_name=_("allow user to credit their balance"), default=False
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)
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def end_payment(self, invoice, request):
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"""Changes the user's balance to pay the invoice. If it is not
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possible, shows an error and invalidates the invoice.
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"""
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user = invoice.user
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total_price = invoice.prix_total()
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if user.solde - total_price < self.minimum_balance:
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messages.error(request, _("Your balance is too low for this operation."))
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return redirect(reverse("users:profil", kwargs={"userid": user.id}))
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return invoice.paiement.end_payment(invoice, request, use_payment_method=False)
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def valid_form(self, form):
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"""Checks that there is not already a balance payment method."""
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p = Paiement.objects.filter(is_balance=True)
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if len(p) > 0:
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form.add_error(
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"payment_method",
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_("There is already a payment method for user balance."),
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)
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def alter_payment(self, payment):
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"""Register the payment as a balance payment."""
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self.payment.is_balance = True
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def check_price(self, price, user, *args, **kwargs):
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"""Checks that the price meets the requirement to be paid with user
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balance.
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"""
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return (
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user.solde - price >= self.minimum_balance,
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_("Your balance is too low for this operation."),
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)
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def can_credit_balance(self, user_request):
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return (
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len(Paiement.find_allowed_payments(user_request).exclude(is_balance=True))
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> 0
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) and self.credit_balance_allowed
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