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re2o/cotisations/payment_methods/forms.py
2018-07-05 15:21:51 +02:00

77 lines
2.8 KiB
Python

from django import forms
from django.utils.translation import ugettext as _
from django.utils.translation import ugettext_lazy as _l
from . import PAYMENT_METHODS
from cotisations.utils import find_payment_method
def payment_method_factory(payment, *args, creation=True, **kwargs):
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(payment_method, *args, **kwargs)
else:
return forms.Form()
class PaymentMethodForm(forms.Form):
"""A special form which allows you to add a payment method to a `Payment`
objects if it hasn't one yet, or to edit the existing payment method.
To do so it replaces itself with a `modelform_factory`.
"""
payment_method = forms.ChoiceField(
label=_l("Special payment method"),
help_text=_l("Warning : You will not be able to change the payment "
"method later. But you will be allowed to edit its "
"options."
),
required=False
)
def __init__(self, payment_method, *args, **kwargs):
super(PaymentMethodForm, self).__init__(*args, **kwargs)
if payment_method is None:
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, ('', _l('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
]
else:
self.fields = {}
def clean(self):
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):
commit = kwargs.pop('commit', True)
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