Conflicts fix switch_conf_json

# Conflicts:
#   re2o/templatetags/acl.py
#   re2o/views.py
#   topologie/templates/topologie/aff_port.html

CHANGELOG.md

 ## MR 160: Datepicker
 
 Install libjs-jquery libjs-jquery-ui libjs-jquery-timepicker libjs-bootstrap javascript-common
-```
+```bash
 apt-get -y install \
     libjs-jquery \
     libjs-jquery-ui \
@@ -10,12 +10,12 @@ apt-get -y install \
     javascript-common
 ```
 Enable javascript-common conf
-```
+```bash
 a2enconf javascript-common
 ```
 
 Delete old jquery files :
-```
+```bash
 rm -r static_files/js/jquery-ui-*
 rm static_files/js/jquery-2.2.4.min.js
 rm static/css/jquery-ui-timepicker-addon.css
@@ -42,6 +42,7 @@ Refactored install_re2o.sh script.
 ```
 install_re2o.sh help
 ```
+
 * The installation templates (LDIF files and `re2o/settings_locale.example.py`) have been changed to use `example.net` instead of `example.org` (more neutral and generic)
 
 
@@ -75,7 +76,6 @@ OPTIONAL_APPS = (
 ```
 
 
-
 ## MR 177: Add django-debug-toolbar support
 
 Add the possibility to enable `django-debug-toolbar` in debug mode. First install the APT package:
@@ -94,3 +94,29 @@ If you to restrict the IP which can see the debug, use the `INTERNAL_IPS` option
 ```
 INTERNAL_IPS = ["10.0.0.1", "10.0.0.2"]
 ```
+
+## MR 145: Fix #117 : Use unix_name instead of name for ldap groups
+
+Fix a mixing between unix_name and name for groups
+After this modification you need to:
+* Double-check your defined groups' unix-name only contain small letters 
+* Run the following commands to rebuild your ldap's groups:
+  ```shell
+  python3 manage.py ldap_rebuild
+  ```
+
+* You may need to force your nslcd cache to be reloaded on some servers (else you will have to wait for the cache to be refreshed):
+  ```bash
+  sudo nslcd -i groups
+  ```
+
+## MR 174 : Fix online payment + allow users to pay their subscription
+
+Add the possibility to use custom payment methods. There is also a boolean field on the 
+Payments allowing every user to use some kinds of payment. You have to add the rights `cotisations.use_every_payment` and `cotisations.buy_every_article`
+to the staff members so they can use every type of payment to buy anything.
+
+Don't forget to run migrations, several settings previously in the `preferences` app ar now
+in their own Payment models.
+
+To have a closer look on how the payments works, please go to the wiki.

api/acl.py

+# -*- 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.

api/authentication.py

+# -*- 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.

api/pagination.py

+# -*- 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.

api/permissions.py

+# -*- 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.

api/routers.py

+# -*- 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.

api/serializers.py

+# -*- 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.
@@ -190,6 +191,13 @@ class MxSerializer(NamespacedHMSerializer):
         fields = ('zone', 'priority', 'name', 'api_url')
 
 
+class DNameSerializer(NamespacedHMSerializer):
+    """Serialize `machines.models.DName` objects.
+    """
+    class Meta:
+        model = machines.DName
+        fields = ('zone', 'alias', 'api_url')
+
 class NsSerializer(NamespacedHMSerializer):
     """Serialize `machines.models.Ns` objects.
     """

api/settings.py

+# -*- 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.

api/tests.py

+# -*- 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.

api/urls.py

+# -*- 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.
@@ -51,6 +52,7 @@ router.register_viewset(r'machines/extension', views.ExtensionViewSet)
 router.register_viewset(r'machines/mx', views.MxViewSet)
 router.register_viewset(r'machines/ns', views.NsViewSet)
 router.register_viewset(r'machines/txt', views.TxtViewSet)
+router.register_viewset(r'machines/dname', views.DNameViewSet)
 router.register_viewset(r'machines/srv', views.SrvViewSet)
 router.register_viewset(r'machines/interface', views.InterfaceViewSet)
 router.register_viewset(r'machines/ipv6list', views.Ipv6ListViewSet)

api/views.py

+# -*- 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.
@@ -162,6 +163,12 @@ class TxtViewSet(viewsets.ReadOnlyModelViewSet):
     queryset = machines.Txt.objects.all()
     serializer_class = serializers.TxtSerializer
 
+class DNameViewSet(viewsets.ReadOnlyModelViewSet):
+    """Exposes list and details of `machines.models.DName` objects.
+    """
+    queryset = machines.DName.objects.all()
+    serializer_class = serializers.DNameSerializer
+
 
 class SrvViewSet(viewsets.ReadOnlyModelViewSet):
     """Exposes list and details of `machines.models.Srv` objects.

cotisations/migrations/0030_custom_payment.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.10.7 on 2018-07-02 18:56
+from __future__ import unicode_literals
+
+import re2o.aes_field
+import cotisations.payment_methods.mixins
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+def add_cheque(apps, schema_editor):
+    ChequePayment = apps.get_model('cotisations', 'ChequePayment')
+    Payment = apps.get_model('cotisations', 'Paiement')
+    for p in Payment.objects.filter(type_paiement=1):
+        cheque = ChequePayment()
+        cheque.payment = p
+        cheque.save()
+
+
+def add_comnpay(apps, schema_editor):
+    ComnpayPayment = apps.get_model('cotisations', 'ComnpayPayment')
+    Payment = apps.get_model('cotisations', 'Paiement')
+    AssoOption = apps.get_model('preferences', 'AssoOption')
+    options, _created = AssoOption.objects.get_or_create()
+    try:
+        payment = Payment.objects.get(
+            moyen='Rechargement en ligne'
+        )
+    except Payment.DoesNotExist:
+        return
+    comnpay = ComnpayPayment()
+    comnpay.payment_user = options.payment_id
+    comnpay.payment = payment
+    comnpay.save()
+    payment.moyen = "ComnPay"
+
+    payment.save()
+
+
+def add_solde(apps, schema_editor):
+    OptionalUser = apps.get_model('preferences', 'OptionalUser')
+    options, _created = OptionalUser.objects.get_or_create()
+
+    Payment = apps.get_model('cotisations', 'Paiement')
+    BalancePayment = apps.get_model('cotisations', 'BalancePayment')
+
+    try:
+        solde = Payment.objects.get(moyen="solde")
+    except Payment.DoesNotExist:
+        return
+    balance = BalancePayment()
+    balance.payment = solde
+    balance.minimum_balance = options.solde_negatif
+    balance.maximum_balance = options.max_solde
+    solde.is_balance = True
+    balance.save()
+    solde.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('preferences', '0044_remove_payment_pass'),
+        ('cotisations', '0029_auto_20180414_2056'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='paiement',
+            options={'permissions': (('view_paiement', "Can see a payement's details"), ('use_every_payment', 'Can use every payement')), 'verbose_name': 'Payment method', 'verbose_name_plural': 'Payment methods'},
+        ),
+        migrations.AlterModelOptions(
+            name='article',
+            options={'permissions': (('view_article', "Can see an article's details"), ('buy_every_article', 'Can buy every_article')), 'verbose_name': 'Article', 'verbose_name_plural': 'Articles'},
+        ),
+        migrations.AddField(
+            model_name='paiement',
+            name='available_for_everyone',
+            field=models.BooleanField(default=False, verbose_name='Is available for every user'),
+        ),
+        migrations.AddField(
+            model_name='paiement',
+            name='is_balance',
+            field=models.BooleanField(default=False, editable=False, help_text='There should be only one balance payment method.', verbose_name='Is user balance', validators=[cotisations.models.check_no_balance]),
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='available_for_everyone',
+            field=models.BooleanField(default=False, verbose_name='Is available for every user'),
+        ),
+        migrations.CreateModel(
+            name='ChequePayment',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('payment', models.OneToOneField(editable=False, on_delete=django.db.models.deletion.CASCADE, related_name='payment_method', to='cotisations.Paiement')),
+            ],
+            bases=(cotisations.payment_methods.mixins.PaymentMethodMixin, models.Model),
+            options={'verbose_name': 'Cheque'},
+        ),
+        migrations.CreateModel(
+            name='ComnpayPayment',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('payment_credential', models.CharField(blank=True, default='', max_length=255, verbose_name='ComNpay VAD Number')),
+                ('payment_pass', re2o.aes_field.AESEncryptedField(blank=True, max_length=255, null=True, verbose_name='ComNpay Secret Key')),
+                ('payment', models.OneToOneField(editable=False, on_delete=django.db.models.deletion.CASCADE, related_name='payment_method', to='cotisations.Paiement')),
+                ('minimum_payment', models.DecimalField(decimal_places=2, default=1, help_text='The minimal amount of money you have to use when paying with ComNpay', max_digits=5, verbose_name='Minimum payment')),
+            ],
+            bases=(cotisations.payment_methods.mixins.PaymentMethodMixin, models.Model),
+            options={'verbose_name': 'ComNpay'},
+        ),
+        migrations.CreateModel(
+            name='BalancePayment',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('minimum_balance', models.DecimalField(decimal_places=2, default=0, 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, verbose_name='Minimum balance')),
+                ('payment', models.OneToOneField(editable=False, on_delete=django.db.models.deletion.CASCADE, related_name='payment_method', to='cotisations.Paiement')),
+                ('maximum_balance', models.DecimalField(decimal_places=2, default=50, help_text='The maximal amount of money allowed for the balance.', max_digits=5, verbose_name='Maximum balance', null=True, blank=True)),
+                ('credit_balance_allowed', models.BooleanField(default=False, verbose_name='Allow user to credit their balance')),
+            ],
+            bases=(cotisations.payment_methods.mixins.PaymentMethodMixin, models.Model),
+            options={'verbose_name': 'User Balance'},
+        ),
+        migrations.RunPython(add_comnpay),
+        migrations.RunPython(add_cheque),
+        migrations.RunPython(add_solde),
+        migrations.RemoveField(
+            model_name='paiement',
+            name='type_paiement',
+        ),
+
+    ]

cotisations/payment_methods/__init__.py

+# -*- 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.
+"""
+# Custom Payment methods
+
+When creating an invoice with a classic payment method, the creation view calls
+the `end_payment` method of the `Payment` object of the invoice. This method
+checks for a payment method associated to the `Payment` and if nothing is
+found, adds a message for payment confirmation and redirects the user towards
+their profil page. This is fine for most of the payment method, but you might
+want to define custom payment methods. As an example for negociating with an
+other server for online payment or updating some fields in your models.
+
+# Defining a custom payment method
+To define a custom payment method, you can add a Python module to
+`cotisations/payment_methods/`. This module should be organized like
+a Django application.
+As an example, if you want to add the payment method `foo`.
+
+## Basic
+
+The first thing to do is to create a `foo` Python module with a `models.py`.
+
+```
+payment_methods
+├── foo
+│   ├── __init__.py
+│   └── models.py
+├── forms.py
+├── __init__.py
+├── mixins.py
+└── urls.py
+```
+
+Then, in `models.py` you could add a model like this :
+```python
+from django.db import models
+
+from cotisations.models import Paiement
+from cotisations.payment_methods.mixins import PaymentMethodMixin
+
+
+# The `PaymentMethodMixin` defines the default `end_payment`
+class FooPayment(PaymentMethodMixin, models.Model):
+
+    # This field is required, it is used by `Paiement` in order to
+    # determine if a payment method is associated to it.
+    payment = models.OneToOneField(
+        Paiement,
+        on_delete=models.CASCADE,
+        related_name='payment_method',
+        editable=False
+    )
+```
+
+And in `__init__.py` :
+```python
+from . import models
+NAME = "FOO" # Name displayed when you crate a payment type
+PaymentMethod = models.FooPayment # You must define this alias
+```
+
+Then you just have to register your payment method in
+`payment_methods/__init__.py` in the `PAYMENT_METHODS` list :
+
+```
+from . import ... # Some existing imports
+from . import foo
+
+PAYMENT_METHODS = [
+    # Some already registered payment methods...
+    foo
+]
+```
+
+And... that's it, you can use your new payment method after running
+`makemigrations` and `migrate`.
+
+But this payment method is not really usefull, since it does noting !
+
+## A payment method which does something
+
+You have to redefine the `end_payment` method. Here is its prototype :
+
+```python
+def end_payment(self, invoice, request):
+    pass
+```
+
+With `invoice` the invoice being created and `request` the request which
+created it. This method has to return an HttpResponse-like object.
+
+## Additional views
+
+You can add specific urls for your payment method like in any django app. To
+register these urls, modify `payment_methods/urls.py`.
+
+## Alter the `Paiement` object after creation
+
+You can do that by adding a `alter_payment(self, payment)`
+method to your model.
+
+## Validate the creation field
+
+You may want to perform some additionals verifications on the form
+creating the payment. You can do that by adding a `valid_form(self, form)`
+method to your model, where `form` is an instance of
+`cotisations.payment_methods.forms.PaymentMethodForm`.
+"""
+
+
+from . import comnpay, cheque, balance, urls
+
+PAYMENT_METHODS = [
+    comnpay,
+    cheque,
+    balance,
+]

cotisations/payment_methods/balance/__init__.py

+# -*- 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.
+"""
+This module contains a method to pay online using user balance.
+"""
+from . import models
+NAME = "BALANCE"
+
+PaymentMethod = models.BalancePayment

cotisations/payment_methods/balance/models.py

+# -*- 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
+from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _l
+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:
+        verbose_name = _l("User Balance")
+
+    payment = models.OneToOneField(
+        Paiement,
+        on_delete=models.CASCADE,
+        related_name='payment_method',
+        editable=False
+    )
+    minimum_balance = models.DecimalField(
+        verbose_name=_l("Minimum balance"),
+        help_text=_l("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(
+        verbose_name=_l("Maximum balance"),
+        help_text=_l("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(
+        verbose_name=_l("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
+        )
+
+    def valid_form(self, form):
+        """Checks that there is not already a balance payment method."""
+        p = Paiement.objects.filter(is_balance=True)
+        if len(p) > 0:
+            form.add_error(
+                'payment_method',
+                _("There is already a payment type for user balance")
+            )
+
+    def alter_payment(self, payment):
+        """Register the payment as a balance payment."""
+        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

cotisations/payment_methods/cheque/__init__.py

+# -*- 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.
+"""
+This module contains a method to pay online using cheque.
+"""
+from . import models, urls, views
+NAME = "CHEQUE"
+
+PaymentMethod = models.ChequePayment

cotisations/payment_methods/cheque/forms.py

+# -*- 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 import forms
+
+from re2o.mixins import FormRevMixin
+from cotisations.models import Facture as Invoice
+
+
+class InvoiceForm(FormRevMixin, forms.ModelForm):
+    """A simple form to get the bank a the cheque number."""
+    class Meta:
+        model = Invoice
+        fields = ['banque', 'cheque']

cotisations/payment_methods/cheque/models.py

+# -*- 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
+from django.utils.translation import ugettext_lazy as _l
+
+from cotisations.models import Paiement
+from cotisations.payment_methods.mixins import PaymentMethodMixin
+
+
+class ChequePayment(PaymentMethodMixin, models.Model):
+    """
+    The model allowing you to pay with a cheque.
+    """
+
+    class Meta:
+        verbose_name = _l("Cheque")
+