From 5853049aefa1f7c01393c9d9cc2f251d5a664b84 Mon Sep 17 00:00:00 2001
From: Hugo LEVY-FALK <hugo.levy--falk@supelec.fr>
Date: Tue, 3 Jul 2018 16:46:29 +0200
Subject: [PATCH] =?UTF-8?q?Emp=C3=AAche=20le=20changement=20de=20m=C3=A9th?=
 =?UTF-8?q?ode=20de=20paiement=20apr=C3=A8s=20cr=C3=A9ation.?=
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---
 cotisations/payment_methods/forms.py | 11 +++++++++--
 cotisations/views.py                 |  3 ++-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/cotisations/payment_methods/forms.py b/cotisations/payment_methods/forms.py
index f5bf4f76..37653c3a 100644
--- a/cotisations/payment_methods/forms.py
+++ b/cotisations/payment_methods/forms.py
@@ -5,7 +5,7 @@ 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, **kwargs):
+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__')(
@@ -13,7 +13,10 @@ def payment_method_factory(payment, *args, **kwargs):
             instance=payment_method,
             **kwargs
         )
-    return PaymentMethodForm(payment_method, *args, **kwargs)
+    elif creation:
+        return PaymentMethodForm(payment_method, *args, **kwargs)
+    else:
+        return forms.Form()
 
 
 class PaymentMethodForm(forms.Form):
@@ -25,6 +28,10 @@ class PaymentMethodForm(forms.Form):
 
     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
     )
 
diff --git a/cotisations/views.py b/cotisations/views.py
index fbf8d7ab..bee266d0 100644
--- a/cotisations/views.py
+++ b/cotisations/views.py
@@ -485,7 +485,8 @@ def edit_paiement(request, paiement_instance, **_kwargs):
     payment_method = payment_method_factory(
         paiement_instance,
         request.POST or None,
-        prefix='payment_method'
+        prefix='payment_method',
+        creation=False
     )
 
     if payment.is_valid() and payment_method.is_valid():