one2many field name: survey_request_ids 
model of one2many field : hr_evaluation.evaluation 
Field name of 'Interviewer' inside one2many : user_id 
model of 'Interviewer' inside one2many : hr.evaluation.interview


I want to create a new field 'Interviewer' below 'Appraisal Deadline' which will have values from the below field 'Interviewer' which is in a one2many.
I tried like these,


from openerp import models,fields,api

class hr_evaluation_interview(models.Model):
    _inherit = 'hr.evaluation.interview'

    @api.onchange('user_id')
    def _onchange_user_id(self):
        rec = self.env['hr_evaluation.evaluation'].search([('id','=', 
self.evaluation_id.id)])
        rec.update({
            'interviewer_ids': [(4,self.user_id.id)]
        })


class hr_evaluation_inherit(models.Model):
    _inherit = 'hr_evaluation.evaluation'

    _columns = {
        'interviewer_ids': fields.many2many('res.users', 
string='Interviewer',readonly=True)
    }

form view image link..,
https://i.stack.imgur.com/2MOPY.png