T1760 FIX wrong language on payment process page

- This is a workaround fixing Odoo putting the wrong language in the context in the payment page. It could be removed when Odoo properly does it.

sms_939/models/sms_notification.py

@@ -10,6 +10,7 @@
 
 import logging
 import traceback
+
 from dateutil import parser
 
 from odoo import _, api, fields, models, tools

website_switzerland/models/__init__.py

@@ -5,3 +5,4 @@
 from . import res_partner
 from . import event_registration
 from . import survey_user_input
+from . import payment_transaction

website_switzerland/models/payment_transaction.py

@@ -0,0 +1,16 @@
+from odoo import models
+
+
+class PaymentTransaction(models.Model):
+    _inherit = "payment.transaction"
+
+    def _post_process_after_done(self):
+        # T1760 FIX wrong language in context coming from the payment process page
+        available_langs = self.env["res.lang"].search([]).mapped("code")
+        if self.env.lang not in available_langs:
+            self = self.with_context(lang=None)
+            for lang in available_langs:
+                if lang.startswith(self.env.lang.split("_")[0]):
+                    self = self.with_context(lang=lang)
+                    break
+        return super()._post_process_after_done()