'', 'fields' => 'ID', ) ); foreach ( $user_ids as $user_id ) { update_user_meta( $user_id, 'wp-approve-user', true ); update_user_meta( $user_id, 'wp-approve-user-mail-sent', true ); } } return $new; } add_filter( 'pre_update_option_users_can_register', 'wpau_whitelist_users' ); /** * Register info message to turn on user registration. * * @author Konstantin Obenland * @since 4 - 27.07.2018 */ function wpau_add_settings_error() { if ( ! current_user_can( 'manage_options' ) || 0 === stripos( get_current_screen()->id, 'options' ) ) { return; } $url = is_multisite() ? network_admin_url( 'settings.php' ) : admin_url( 'options-general.php' ); add_settings_error( 'wp-approve-user', 'no-users-can-register', sprintf( /* translators: Link to options page. */ wp_kses_post( __( 'Please enable user registrations for WP Approve User to work.' ) ), esc_url( $url ) ), 'notice-info' ); } add_action( 'admin_head', 'wpau_add_settings_error' ); /** * Display all messages registered to this plugin. * * @author Konstantin Obenland * @since 4 - 27.07.2018 */ function wpau_settings_errors() { settings_errors( 'wp-approve-user' ); } add_action( 'all_admin_notices', 'wpau_settings_errors' );