[FIX] hr_holidays: Fix out of office message default value

If a user has an ooom in his Preferences, it should be
used as the default value for a leave ooom.

closes odoo/odoo#33890

Signed-off-by: Romain Libert (rli) <rli@odoo.com>

addons/hr_holidays/models/hr_leave.py

@@ -266,6 +266,11 @@ class HolidaysRequest(models.Model):
         self.request_unit_hours = False
         self.request_unit_custom = False
 
+    @api.onchange('user_id')
+    def _onchange_user_id(self):
+        if not self.out_of_office_message:
+            self.out_of_office_message = self.user_id.out_of_office_message
+
     @api.onchange('request_date_from_period', 'request_hour_from', 'request_hour_to',
                   'request_date_from', 'request_date_to',
                   'employee_id')

addons/hr_holidays/tests/test_out_of_office.py

@@ -4,26 +4,29 @@
 from datetime import datetime
 from dateutil.relativedelta import relativedelta
 
-from odoo.tests.common import tagged, users, warmup
+from odoo.tests.common import tagged, users, warmup, Form
 from odoo.addons.hr_holidays.tests.common import TestHrHolidaysBase
 
 
 @tagged('out_of_office')
 class TestOutOfOffice(TestHrHolidaysBase):
 
-    def test_leave_ooo(self):
-        leave_type = self.env['hr.leave.type'].create({
+    def setUp(self):
+        super().setUp()
+        self.leave_type = self.env['hr.leave.type'].create({
             'name': 'Legal Leaves',
             'time_type': 'leave',
             'allocation_type': 'no',
         })
+
+    def test_leave_ooo(self):
         self.assertNotEqual(self.employee_hruser.user_id.im_status, 'leave_offline', 'user should not be on leave')
         self.assertNotEqual(self.employee_hruser.user_id.partner_id.im_status, 'leave_offline', 'user should not be on leave')
         leave_date_end = (datetime.today() + relativedelta(days=3))
         leave = self.env['hr.leave'].create({
             'name': 'Christmas',
             'employee_id': self.employee_hruser.id,
-            'holiday_status_id': leave_type.id,
+            'holiday_status_id': self.leave_type.id,
             'date_from': (datetime.today() - relativedelta(days=1)),
             'date_to': leave_date_end,
             'out_of_office_message': 'contact tde in case of problems',
@@ -51,6 +54,29 @@ class TestOutOfOffice(TestHrHolidaysBase):
         self.assertEqual(infos[0]['direct_partner'][0]['out_of_office_date_end'], leave_date_end)
         self.assertEqual(infos[0]['direct_partner'][0]['out_of_office_message'], 'contact tde in case of problems')
 
+    def test_leave_ooo_use_default(self):
+        """ Out of office message from Preferences should be used as default value """
+        self.user_hruser.out_of_office_message = 'contact xdo in case of problems'
+
+        leave_form = Form(self.env['hr.leave'].sudo(self.user_hruser), view='hr_holidays.hr_leave_view_form')
+        leave_form.date_from = datetime.today() - relativedelta(days=1)
+        leave_form.date_to = datetime.today()
+        leave_form.holiday_status_id = self.leave_type
+        leave = leave_form.save()
+        self.assertEqual(leave.out_of_office_message, 'contact xdo in case of problems')
+
+    def test_leave_ooo_overwrite_default(self):
+        """ Out of office message default value should be overwrittable """
+        self.user_hruser.out_of_office_message = 'contact xdo in case of problems'
+
+        leave_form = Form(self.env['hr.leave'].sudo(self.user_hruser), view='hr_holidays.hr_leave_view_form')
+        leave_form.date_from = datetime.today() - relativedelta(days=1)
+        leave_form.date_to = datetime.today()
+        leave_form.holiday_status_id = self.leave_type
+        leave_form.out_of_office_message = 'contact tde in case of problems'
+        leave = leave_form.save()
+        self.assertEqual(leave.out_of_office_message, 'contact tde in case of problems')
+
 
 @tagged('out_of_office')
 class TestOutOfOfficePerformance(TestHrHolidaysBase):

addons/hr_holidays/views/hr_leave_views.xml

@@ -246,6 +246,7 @@
                         </div>
 
                         <field name="name" attrs="{'readonly': [('state', 'not in', ('draft', 'confirm'))]}"/>
+                        <field name="user_id" invisible="1"/>
                         <field name="out_of_office_message"/>
                     </group>
                     <group name="col_right">