import_page = 'woocommerce_tax_rate_csv'; } /** * Registered callback function for the WordPress Importer * * Manages the three separate stages of the WXR import process */ function dispatch() { $this->header(); $step = empty( $_GET['step'] ) ? 0 : (int) $_GET['step']; switch ( $step ) { case 0: $this->greet(); break; case 1: check_admin_referer( 'import-upload' ); if ( $this->handle_upload() ) { $file = get_attached_file( $this->id ); set_time_limit(0); $this->import( $file ); } break; } $this->footer(); } /** * The main controller for the actual import stage. * * @param string $file Path to the WXR file for importing */ function import( $file ) { add_filter( 'import_post_meta_key', array( $this, 'is_valid_meta_key' ) ); add_filter( 'http_request_timeout', array( $this, 'bump_request_timeout' ) ); $this->import_start( $file ); wp_suspend_cache_invalidation( true ); $this->process_nav_menu_meta(); wp_suspend_cache_invalidation( false ); $this->import_end(); } /** * Parses the WXR file and prepares us for the task of processing parsed data * * @param string $file Path to the WXR file for importing */ function import_start( $file ) { if ( ! is_file($file) ) { echo '

' . __( 'Sorry, there has been an error.', 'nav-menu-roles' ) . '
'; echo __( 'The file does not exist, please try again.', 'nav-menu-roles' ) . '

'; $this->footer(); die(); } $import_data = $this->parse( $file ); if ( is_wp_error( $import_data ) ) { echo '

' . __( 'Sorry, there has been an error.', 'nav-menu-roles' ) . '
'; echo esc_html( $import_data->get_error_message() ) . '

'; $this->footer(); die(); } $this->version = $import_data['version']; $this->posts = $import_data['posts']; $this->base_url = esc_url( $import_data['base_url'] ); wp_defer_term_counting( true ); wp_defer_comment_counting( true ); do_action( 'import_start' ); } /** * Performs post-import cleanup of files and the cache */ function import_end() { wp_import_cleanup( $this->id ); wp_cache_flush(); foreach ( get_taxonomies() as $tax ) { delete_option( "{$tax}_children" ); _get_term_hierarchy( $tax ); } wp_defer_term_counting( false ); wp_defer_comment_counting( false ); echo '

' . __( 'All done.', 'nav-menu-roles' ) . ' ' . __( 'Have fun!', 'nav-menu-roles' ) . '' . '

'; do_action( 'import_end' ); } /** * Handles the WXR upload and initial parsing of the file to prepare for * displaying author import options * * @return bool False if error uploading or invalid file, true otherwise */ function handle_upload() { $file = wp_import_handle_upload(); if ( isset( $file['error'] ) ) { echo '

' . __( 'Sorry, there has been an error.', 'nav-menu-roles' ) . '
'; echo esc_html( $file['error'] ) . '

'; return false; } else if ( ! file_exists( $file['file'] ) ) { echo '

' . __( 'Sorry, there has been an error.', 'nav-menu-roles' ) . '
'; printf( __( 'The export file could not be found at %s. It is likely that this was caused by a permissions problem.', 'nav-menu-roles' ), esc_html( $file['file'] ) ); echo '

'; return false; } $this->id = (int) $file['id']; $import_data = $this->parse( $file['file'] ); if ( is_wp_error( $import_data ) ) { echo '

' . __( 'Sorry, there has been an error.', 'nav-menu-roles' ) . '
'; echo esc_html( $import_data->get_error_message() ) . '

'; return false; } $this->version = $import_data['version']; if ( $this->version > $this->max_wxr_version ) { echo '

'; printf( __( 'This WXR file (version %s) may not be supported by this version of the importer. Please consider updating.', 'nav-menu-roles' ), esc_html($import_data['version']) ); echo '

'; } return true; } /** * Create new posts based on import information * * Posts marked as having a parent which doesn't exist will become top level items. * Doesn't create a new post if: the post type doesn't exist, the given post ID * is already noted as imported or a post with the same title and date already exists. * Note that new/updated terms, comments and meta are imported for the last of the above. */ function process_nav_menu_meta() { foreach ( $this->posts as $post ) { // we only want to deal with the nav_menu_item posts if ( 'nav_menu_item' != $post['post_type'] || ! empty( $post['post_id'] ) ) continue; // ok we've got a nav_menu_item $post_id = (int) $post['post_id']; // add/update post meta if ( isset( $post['postmeta'] ) ) { foreach ( $post['postmeta'] as $meta ) { $key = apply_filters( 'import_post_meta_key', $meta['key'] ); $value = false; if ( $key ) { // export gets meta straight from the DB so could have a serialized string if ( ! $value ) $value = maybe_unserialize( $meta['value'] ); update_post_meta( $post_id, $key, $value ); do_action( 'import_post_meta', $post_id, $key, $value ); } } } } unset( $this->posts ); } /** * Parse a WXR file * * @param string $file Path to WXR file for parsing * @return array Information gathered from the WXR file */ function parse( $file ) { $parser = new WXR_Parser(); return $parser->parse( $file ); } // Display import page title function header() { echo '
'; echo '

' . __( 'Import Nav Menu Roles', 'nav-menu-roles' ) . '

'; $updates = get_plugin_updates(); $basename = plugin_basename(__FILE__); if ( isset( $updates[$basename] ) ) { $update = $updates[$basename]; echo '

'; printf( __( 'A new version of this importer is available. Please update to version %s to ensure compatibility with newer export files.', 'nav-menu-roles' ), $update->update->new_version ); echo '

'; } } // Close div.wrap function footer() { echo '
'; } /** * Display introductory text and file upload form */ function greet() { echo '
'; echo '

'.__( 'Re-Upload your normal WordPress eXtended RSS (WXR) file and we’ll import the Nav Menu Roles and any other missing post meta for the Nav Menu items.', 'nav-menu-roles' ).'

'; echo '

'.__( 'Choose a WXR (.xml) file to upload, then click Upload file and import.', 'nav-menu-roles' ).'

'; wp_import_upload_form( 'admin.php?import=nav_menu_roles&step=1' ); echo '
'; } /** * Decide if the given meta key maps to information we will want to import * * @param string $key The meta key to check * @return string|bool The key if we do want to import, false if not */ function is_valid_meta_key( $key ) { // skip attachment metadata since we'll regenerate it from scratch // skip _edit_lock as not relevant for import if ( in_array( $key, array( '_wp_attached_file', '_wp_attachment_metadata', '_edit_lock' ) ) ) return false; return $key; } /** * Added to http_request_timeout filter to force timeout at 60 seconds during import * @param int $val * @return int */ public function bump_request_timeout( $val ) { return 60; } // return the difference in length between two strings function cmpr_strlen( $a, $b ) { return strlen($b) - strlen($a); } } // end class } // end if