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re2o/cotisations/payment_methods/free/models.py

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1.9 KiB
Python

# -*- mode: python; coding: utf-8 -*-
# Re2o est un logiciel d'administration développé initiallement au Rézo Metz. 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.utils.translation import ugettext_lazy as _
from django.contrib import messages
from cotisations.models import Paiement
from cotisations.payment_methods.mixins import PaymentMethodMixin
class FreePayment(PaymentMethodMixin, models.Model):
"""
The model allowing you to bypass payment if the invoice is free.
"""
class Meta:
verbose_name = _("Free payment")
payment = models.OneToOneField(
Paiement,
on_delete=models.CASCADE,
related_name="payment_method_free",
editable=False,
)
def end_payment(self, invoice, request):
"""Ends the payment normally.
"""
return invoice.paiement.end_payment(invoice, request, use_payment_method=False)
def check_price(self, price, user, *args, **kwargs):
"""Checks that the price meets the requirement to be paid with user
balance.
"""
return (price == 0, _("You can't pay this invoice for free."))