From 82b073c158ddf73108d5bf9793679b5806f117ff Mon Sep 17 00:00:00 2001
From: Raimon Esteve <raimonesteve@gmail.com>
Date: Wed, 15 Jun 2022 09:09:27 +0200
Subject: [PATCH] issue11198.diff [bank] Fill or create bank from IBAN and
 enforce uniqueness

---
 issue11198.diff | 51 +++++++++++++++++++++++++++++++++++++++++++++++++
 series          |  1 +
 2 files changed, 52 insertions(+)
 create mode 100644 issue11198.diff

diff --git a/issue11198.diff b/issue11198.diff
new file mode 100644
index 0000000..8fa3873
--- /dev/null
+++ b/issue11198.diff
@@ -0,0 +1,51 @@
+diff --git a/trytond/trytond/modules/bank/bank.py b/trytond/trytond/modules/bank/bank.py
+index 04f6e3d..7bc6601 100644
+--- a/trytond/trytond/modules/bank/bank.py
++++ b/trytond/trytond/modules/bank/bank.py
+@@ -3,10 +3,11 @@
+ from stdnum import iban, bic
+ import stdnum.exceptions
+ from sql import operators, Literal
++from sql.operators import Equal
+
+ from trytond.i18n import gettext
+ from trytond.model import (
+-    ModelView, ModelSQL, DeactivableMixin, fields, sequence_ordered)
++    Exclude, ModelView, ModelSQL, DeactivableMixin, fields, sequence_ordered)
+
+ from .exceptions import IBANValidationError, InvalidBIC
+
+@@ -96,6 +97,17 @@ class AccountNumber(sequence_ordered(), ModelSQL, ModelView):
+         super().__setup__()
+         cls.__access__.add('account')
+         cls._order.insert(0, ('account', 'ASC'))
++        table = cls.__table__()
++        cls._sql_constraints += [
++            ('number_iban_exclude',
++                Exclude(table, (table.number_compact, Equal),
++                    where=table.type == 'iban'),
++                'bank.msg_number_iban_unique'),
++            ('account_iban_exclude',
++                Exclude(table, (table.account, Equal),
++                    where=table.type == 'iban'),
++                'bank.msg_account_iban_unique'),
++            ]
+
+     @classmethod
+     def default_type(cls):
+diff --git a/trytond/trytond/modules/bank/message.xml b/trytond/trytond/modules/bank/message.xml
+index a06297f..f4ab923 100644
+--- a/trytond/trytond/modules/bank/message.xml
++++ b/trytond/trytond/modules/bank/message.xml
+@@ -9,5 +9,11 @@ this repository contains the full copyright notices and license terms. -->
+         <record model="ir.message" id="msg_invalid_bic">
+             <field name="text">The BIC "%(bic)s" is not valid.</field>
+         </record>
++        <record model="ir.message" id="msg_account_iban_unique">
++            <field name="text">Account can have only one IBAN.</field>
++        </record>
++        <record model="ir.message" id="msg_number_iban_unique">
++            <field name="text">IBAN must be unique.</field>
++        </record>
+     </data>
+ </tryton>
diff --git a/series b/series
index e75834d..85c405e 100644
--- a/series
+++ b/series
@@ -122,3 +122,4 @@ issue11077.diff # [trytond] Fill Value of MultiValue with the other default valu
 issue8952.diff # [country] Use Tryton's CDN to download postal codes Remove on 6.4
 issue10363.diff # [production] Remove unique product constraint on BOM
 issue11000.diff # [account]
+issue11198.diff # [bank] Fill or create bank from IBAN and enforce uniqueness