[FIX] hr: fix TypeError: '>' not supported between instances of 'bool' and 'datetime.datetime'

if there the new_hire_field is False, an error appear. This Commit will check  that the field is not false

closes odoo/odoo#159859

Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/hr/models/hr_employee_base.py

@@ -4,7 +4,7 @@
 from ast import literal_eval
 
 from pytz import timezone, UTC, utc
-from datetime import timedelta
+from datetime import timedelta, datetime
 
 from odoo import _, api, fields, models
 from odoo.exceptions import UserError
@@ -74,7 +74,12 @@ class HrEmployeeBase(models.AbstractModel):
         new_hire_field = self._get_new_hire_field()
         new_hire_date = fields.Datetime.now() - timedelta(days=90)
         for employee in self:
-            employee.newly_hired = employee[new_hire_field] > new_hire_date
+            if not employee[new_hire_field]:
+                employee.newly_hired = False
+            elif not isinstance(employee[new_hire_field], datetime):
+                employee.newly_hired = employee[new_hire_field] > new_hire_date.date()
+            else:
+                employee.newly_hired = employee[new_hire_field] > new_hire_date
 
     def _search_newly_hired(self, operator, value):
         new_hire_field = self._get_new_hire_field()