19.0 vanilla

odoo-bringout-oca-ocb-hr_maintenance/hr_maintenance/models/hr_employee.py

@@ -0,0 +1,13 @@
+from odoo import api, models, fields
+
+
+class HrEmployee(models.Model):
+    _inherit = 'hr.employee'
+
+    equipment_ids = fields.One2many('maintenance.equipment', 'employee_id', groups="hr.group_hr_user")
+    equipment_count = fields.Integer('Equipment Count', compute='_compute_equipment_count')
+
+    @api.depends('equipment_ids')
+    def _compute_equipment_count(self):
+        for employee in self:
+            employee.equipment_count = len(employee.equipment_ids)