When i click the Refresh button below function will call. This one2many field is in hr.employee model.

def button_click(self, cr, uid, ids, context=None):
          if context is None:
             context = {}         
          res = self.pool.get('ir.actions.act_window').for_xml_id(cr, uid ,'employee_profile','action_project', context=context)
         
          res['context'] = context
          emp_ids_browse = self.browse(cr, uid, ids, context=context)[0].project_line_ids // project_line_ids -- one2many field in hr.employee table. I have an employee_id field in the employee.project table. I want to sort the records based on employee ids. Want to display in the same page.Here the issue is emp_ids_browse didnt browse any records. I want to display all records based on employee_id.  But now it is displaying all employee records in all employee profile. How can i get values in emp_ids_browse and sorting will based on employee_id?

          print "emp_ids_browse",emp_ids_browse
          emp_ids=[]
          for emp in emp_ids_browse:
              emp_ids.append(emp.id)
              print "emp_ids",emp_ids
              res['project_line_ids'] = [('id','in', emp_ids)]
          return res

I dont want to create as a new record. Just want to display the exiting records in employee.project to hr.employee, in each employee profile