[FIX] pos_mercury: missing translation ability

Made the error message more understandable

Closes #17276

addons/pos_mercury/i18n/pos_mercury.pot

@@ -603,6 +603,18 @@ msgstr ""
 msgid "Name of this Mercury configuration"
 msgstr ""
 
+#. module: pos_mercury
+#: code:addons/pos_mercury/models/pos_mercury_transaction.py:35
+#, python-format
+msgid "No Mercury configuration associated with the journal."
+msgstr ""
+
+#. module: pos_mercury
+#: code:addons/pos_mercury/models/pos_mercury_transaction.py:23
+#, python-format
+msgid "No opened point of sale session for user %s found"
+msgstr ""
+
 #. module: pos_mercury
 #. openerp-web
 #: code:addons/pos_mercury/static/src/js/pos_mercury.js:334

addons/pos_mercury/models/pos_mercury_transaction.py

@@ -9,6 +9,7 @@ import ssl
 import werkzeug
 
 from odoo import models, api, service
+from odoo.tools.translate import _
 from odoo.exceptions import UserError
 from odoo.tools import DEFAULT_SERVER_DATETIME_FORMAT
 
@@ -19,7 +20,7 @@ class MercuryTransaction(models.Model):
     def _get_pos_session(self):
         pos_session = self.env['pos.session'].search([('state', '=', 'opened'), ('user_id', '=', self.env.uid)], limit=1)
         if not pos_session:
-            raise UserError("No POS session")
+            raise UserError(_("No opened point of sale session for user %s found") % self.env.user.name)
 
         pos_session.login()
 
@@ -31,7 +32,7 @@ class MercuryTransaction(models.Model):
         if journal and journal.pos_mercury_config_id:
             return journal.pos_mercury_config_id
         else:
-            raise UserError("No Mercury configuration associated with the journal.")
+            raise UserError(_("No Mercury configuration associated with the journal."))
 
     def _setup_request(self, data):
         # todo: in master make the client include the pos.session id and use that