[IMP] hr_employee_calendar_planning: Set calendar_ids default value t…

…o cover all use cases

TT44093

hr_employee_calendar_planning/models/hr_employee.py

@@ -48,6 +48,20 @@ class HrEmployee(models.Model):
         copy=True,
     )
 
+    @api.model
+    def default_get(self, fields):
+        """Set calendar_ids default value to cover all use cases."""
+        vals = super().default_get(fields)
+        if "calendar_ids" in fields and not vals.get("calendar_ids"):
+            vals["calendar_ids"] = [
+                (
+                    0,
+                    0,
+                    {"calendar_id": self.env.company.resource_calendar_id.id},
+                ),
+            ]
+        return vals
+
     def _regenerate_calendar(self):
         self.ensure_one()
         vals_list = []
@@ -142,12 +156,14 @@ def _sync_user(self, user):
     @api.model_create_multi
     def create(self, vals_list):
         res = super().create(vals_list)
+        # Avoid creating an employee without calendars
         if (
             not self.env.context.get("skip_employee_calendars_required")
             and not config["test_enable"]
             and res.filtered(lambda x: not x.calendar_ids)
         ):
             raise UserError(_("You can not create employees without any calendars."))
+        # Regenerate calendar
         res.filtered("calendar_ids").regenerate_calendar()
         return res