def post(self):
     user = users.get_current_user()
     if user:
         if self.request.POST.get('delete'): #if user clicks "Delete" button
             employee_ids = self.request.get('employee_id',allow_multiple=True) #allow_multiple=True so that it reads multiple key into list.
             emp = Employee()
             emp.delete_employee(employee_ids)
             self.redirect('/')
     else:
         self.redirect(users.create_login_url(self.request.uri))