for k, v in form_result.items():

                    if k.startswith('ldap_'):

                        setting = settings_model.get(k)

                        setting.app_settings_value = v

                        self.sa.add(setting)

                self.sa.commit()

                h.flash(_('Ldap settings updated successfully'),

                    category='success')

            except (DatabaseError,):

                raise

        except LdapImportError:

                      'is missing.'), category='warning')

        except formencode.Invalid, errors:

            return htmlfill.render(

                render('admin/ldap/ldap.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8")

        except Exception:

            log.error(traceback.format_exc())