Hii,

I have a Many2one custom field on hr.leave model. 

substitute_employee_id = fields.Many2one('hr.employee', string='Substitute Employee')
<field name="substitute_employee_id"/>

Currently substitute_employee_id shows all employees from hr.employee model on the view.

1. I want to show all employees instead of currently logged in employee in substitute_employee_id field? 

2. How to show logged in user department employees only and not currently logged in employee? 

How to apply a filter or domain on python or xml?