8
0
Fork 0
mirror of https://gitlab2.federez.net/re2o/re2o synced 2024-10-31 23:22:49 +00:00
re2o/cotisations/payment_methods/forms.py

114 lines
4.3 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 import forms
from django.utils.translation import ugettext_lazy as _
from . import PAYMENT_METHODS
from cotisations.utils import find_payment_method
def payment_method_factory(payment, *args, creation=True, **kwargs):
"""This function finds the right payment method form for a given payment.
If the payment has a payment method, returns a ModelForm of it. Else if
it is the creation of the payment, a `PaymentMethodForm`.
Else `None`.
Args:
payment: The payment
*args: arguments passed to the form
creation: Should be True if you are creating the payment
**kwargs: passed to the form
Returns:
A form or None
"""
payment_method = kwargs.pop("instance", find_payment_method(payment))
if payment_method is not None:
return forms.modelform_factory(type(payment_method), fields="__all__")(
*args, instance=payment_method, **kwargs
)
elif creation:
return PaymentMethodForm(*args, **kwargs)
class PaymentMethodForm(forms.Form):
"""A special form which allows you to add a payment method to a `Payment`
object.
"""
payment_method = forms.ChoiceField(
label=_("Special payment method"),
help_text=_(
"Warning: you will not be able to change the payment"
" method later. But you will be allowed to edit the other"
" options."
),
required=False,
)
def __init__(self, *args, **kwargs):
super(PaymentMethodForm, self).__init__(*args, **kwargs)
prefix = kwargs.get("prefix", None)
self.fields["payment_method"].choices = [
(i, p.NAME) for (i, p) in enumerate(PAYMENT_METHODS)
]
self.fields["payment_method"].choices.insert(0, ("", _("No")))
self.fields["payment_method"].widget.attrs = {"id": "paymentMethodSelect"}
self.templates = [
forms.modelform_factory(p.PaymentMethod, fields="__all__")(prefix=prefix)
for p in PAYMENT_METHODS
]
def clean(self):
"""A classic `clean` method, except that it replaces
`self.payment_method` by the payment method object if one has been
found. Tries to call `payment_method.valid_form` if it exists.
"""
super(PaymentMethodForm, self).clean()
choice = self.cleaned_data["payment_method"]
if choice == "":
return
choice = int(choice)
model = PAYMENT_METHODS[choice].PaymentMethod
form = forms.modelform_factory(model, fields="__all__")(
self.data, prefix=self.prefix
)
self.payment_method = form.save(commit=False)
if hasattr(self.payment_method, "valid_form"):
self.payment_method.valid_form(self)
return self.cleaned_data
def save(self, payment, *args, **kwargs):
"""Saves the payment method.
Tries to call `payment_method.alter_payment` if it exists.
"""
commit = kwargs.pop("commit", True)
if not hasattr(self, "payment_method"):
return None
self.payment_method.payment = payment
if hasattr(self.payment_method, "alter_payment"):
self.payment_method.alter_payment(payment)
if commit:
payment.save()
self.payment_method.save()
return self.payment_method