1 files changed, 16 insertions, 0 deletions
diff --git a/addons/account/models/res_partner_bank.py b/addons/account/models/res_partner_bank.py
new file mode 100644
index 00000000..2bfae1ae
--- /dev/null
+++ b/addons/account/models/res_partner_bank.py
@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+from odoo.exceptions import ValidationError
+from odoo import api, fields, models, _
+
+
+class ResPartnerBank(models.Model):
+    _inherit = "res.partner.bank"
+
+    journal_id = fields.One2many('account.journal', 'bank_account_id', domain=[('type', '=', 'bank')], string='Account Journal', readonly=True,
+        help="The accounting journal corresponding to this bank account.")
+
+    @api.constrains('journal_id')
+    def _check_journal_id(self):
+        for bank in self:
+            if len(bank.journal_id) > 1:
+                raise ValidationError(_('A bank account can belong to only one journal.'))