def default_domain_users(self):

at=[]

userx = self.env.user.login

if userx == "bendjeddou.o":

ids_biens=self.env['gmat.journaleline'].search([('exp_P','=',0),('rapJor_ids','=',self.id)])

for item in ids_biens:

at.append(item.bien_id.id)

else:

ids_biens=self.env['gmat.journaleline'].search([('rapJor_ids','=',self.id)])

for item in ids_biens:

at.append(item.bien_id.id)

return [('id','in', at)]

user_filter = fields.Many2one('gmat.nbien',domain=default_domain_users)