From f511dd33b449cde1cf21d6796b4a48fb751d1923 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sat, 18 Jan 2025 12:57:41 +0100
Subject: [PATCH] Sort SEPA payments by date

In order to compute the proper sequence type, the payments must be ordered by
ascending date in case there are many payments for a first used mandate.

Closes #12614
(grafted from 2c9566afb532ea96c728c16b9c3fe965fffa93e7)

--HG--
branch : 6.0
---
 modules/account_payment_sepa/payment.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/account_payment_sepa/payment.py b/modules/account_payment_sepa/payment.py
index 3500310592..3b43408a6c 100644
--- a/modules/account_payment_sepa/payment.py
+++ b/modules/account_payment_sepa/payment.py
@@ -5,6 +5,7 @@ import os
 import unicodedata
 from itertools import groupby
 from io import BytesIO
+from operator import attrgetter
 
 import genshi
 import genshi.template
@@ -208,8 +209,9 @@ class Group(metaclass=PoolMeta):
         pool = Pool()
         Payment = pool.get('account.payment')
         if self.kind == 'receivable':
+            payments = sorted(self.payments, key=attrgetter('date', 'id'))
             mandates = Payment.get_sepa_mandates(self.payments)
-            for payment, mandate in zip(self.payments, mandates):
+            for payment, mandate in zip(payments, mandates):
                 if not mandate:
                     raise ProcessError(
                         gettext('account_payment_sepa'