From c0a68becb5d38f72dcb24fc7cfcbbdefe1b280cc Mon Sep 17 00:00:00 2001
From: Noe Antoine <nan@odoo.com>
Date: Thu, 6 Jul 2023 08:37:49 +0000
Subject: [PATCH] [IMP] event: add a lang field on event.
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In order to allow all communication to be sent in
a chosen language, a 'lang' field is added on the
event.event model. If set (amongst the installed languages)
this language will be used to translate email templates
instead of the partner's one (which is still the default one)

The field is added on the event form view.

Task-3357099

closes odoo/odoo#127540

Signed-off-by: Stéphane Debauche (std) <std@odoo.com>
---
 addons/event/data/mail_template_data.xml | 6 +++---
 addons/event/models/event_event.py       | 6 ++++++
 addons/event/views/event_event_views.xml | 1 +
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/addons/event/data/mail_template_data.xml b/addons/event/data/mail_template_data.xml
index 75235a18b76..84c490aec06 100644
--- a/addons/event/data/mail_template_data.xml
+++ b/addons/event/data/mail_template_data.xml
@@ -23,7 +23,7 @@
     </t>
 </div></field>
             <field name="report_template_ids" eval="[(4, ref('event.action_report_event_registration_foldable_badge'))]"/>
-            <field name="lang">{{ object.partner_id.lang }}</field>
+            <field name="lang">{{ object.event_id.lang or object.partner_id.lang }}</field>
             <field name="auto_delete" eval="True"/>
         </record>
 
@@ -257,7 +257,7 @@
 </table>
             </field>
             <field name="report_template_ids" eval="[(4, ref('event.action_report_event_registration_full_page_ticket'))]"/>
-            <field name="lang">{{ object.partner_id.lang }}</field>
+            <field name="lang">{{ object.event_id.lang or object.partner_id.lang }}</field>
         </record>
 
         <record id="event_reminder" model="mail.template">
@@ -477,7 +477,7 @@
 </td></tr>
 </table>
             </field>
-            <field name="lang">{{ object.partner_id.lang }}</field>
+            <field name="lang">{{ object.event_id.lang or object.partner_id.lang }}</field>
         </record>
 
     </data>
diff --git a/addons/event/models/event_event.py b/addons/event/models/event_event.py
index ecdc1ac5228..a2b15e24100 100644
--- a/addons/event/models/event_event.py
+++ b/addons/event/models/event_event.py
@@ -113,6 +113,10 @@ class EventEvent(models.Model):
     def _default_event_mail_ids(self):
         return self.env['event.type']._default_event_mail_type_ids()
 
+    @api.model
+    def _lang_get(self):
+        return self.env['res.lang'].get_installed()
+
     name = fields.Char(string='Event', translate=True, required=True)
     note = fields.Html(string='Note', store=True, compute="_compute_note", readonly=False)
     description = fields.Html(string='Description', translate=html_translate, sanitize_attributes=False, sanitize_form=False, default=_default_description)
@@ -217,6 +221,8 @@ class EventEvent(models.Model):
         compute_sudo=True)
     country_id = fields.Many2one(
         'res.country', 'Country', related='address_id.country_id', readonly=False, store=True)
+    lang = fields.Selection(_lang_get, string='Language',
+        help="All the communication emails sent to attendees will be translated in this language.")
     # ticket reports
     ticket_instructions = fields.Html('Ticket Instructions', translate=True,
         compute='_compute_ticket_instructions', store=True, readonly=False,
diff --git a/addons/event/views/event_event_views.xml b/addons/event/views/event_event_views.xml
index beb5d3f2b6e..a11af30f8da 100644
--- a/addons/event/views/event_event_views.xml
+++ b/addons/event/views/event_event_views.xml
@@ -45,6 +45,7 @@
                             <field name="date_begin" string="Date" widget="daterange" options="{'end_date_field': 'date_end'}" />
                             <field name="date_end" invisible="1" />
                             <field name="date_tz"/>
+                            <field name="lang"/>
                             <field name="event_type_id" string="Template"/>
                             <field name="tag_ids" widget="many2many_tags" options="{'color_field': 'color', 'no_quick_create': True}"/>
                         </group>