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<?php
/**
* VamTam Content Importer
*/
if ( ! defined( 'WP_LOAD_IMPORTERS' ) )
return;
/** Display verbose errors */
if ( ! defined( 'IMPORT_DEBUG' ) ) {
define( 'IMPORT_DEBUG', false );
}
// Load Importer API
require_once ABSPATH . 'wp-admin/includes/import.php';
if ( ! class_exists( 'WP_Importer' ) ) {
$class_wp_importer = ABSPATH . 'wp-admin/includes/class-wp-importer.php';
if ( file_exists( $class_wp_importer ) )
require $class_wp_importer;
}
// include WXR file parsers
require dirname( __FILE__ ) . '/parsers.php';
/**
* WordPress Importer class for managing the import process of a WXR file
*
* @package Importer
*/
if ( class_exists( 'WP_Importer' ) ) {
class Vamtam_Import extends WP_Importer {
var $max_wxr_version = 1.1; // max. supported WXR version
var $id; // WXR attachment ID
// information to import from WXR file
var $version;
var $authors = array();
var $posts = array();
var $terms = array();
var $categories = array();
var $tags = array();
var $base_url = '';
var $front_page = 0;
var $woocommerce_pages = 0;
private $attachments = [];
// mappings from old information to new
var $processed_authors = array();
var $author_mapping = array();
var $processed_terms = array();
var $processed_posts = array();
var $processed_attachments = array();
var $post_orphans = array();
var $processed_menu_items = array();
var $menu_item_orphans = array();
var $missing_menu_items = array();
var $fetch_attachments = false;
var $url_remap = array();
var $featured_images = array();
function __construct() {
/* nothing */ }
/**
* 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 : $_GET['step'];
check_admin_referer( 'vamtam-import' );
$file = VAMTAM_SAMPLES_DIR . 'content.xml';
$this->fetch_attachments = ( $this->allow_fetch_attachments() );
$this->one_click = true;
update_option( 'vamtam-used-one-click-import', true );
set_time_limit( 0 );
$this->import( $file );
$this->footer();
}
/**
* The main controller for the actual import stage.
*
* @param string $file Path to the WXR file for importing
*/
function import( $file ) {
global $vamtam_defaults;
add_filter( 'import_post_meta_key', array( $this, 'is_valid_meta_key' ) );
add_filter( 'http_request_timeout', array( $this, 'bump_request_timeout' ) );
do_action( 'vamtam_before_content_import' );
$start = microtime( true );
$this->import_start( $file );
$this->get_author_mapping();
wp_suspend_cache_invalidation( true );
$this->process_categories();
$this->process_tags();
$this->process_terms();
$this->process_posts();
wp_suspend_cache_invalidation( false );
if ( get_option( 'vamtam_theme', false ) === false && is_array( $vamtam_defaults ) ) {
update_option( 'vamtam_theme', $vamtam_defaults );
}
// update incorrect/missing information in the DB
$this->backfill_parents();
$this->import_end();
$end = microtime( true );
echo 'Parse and Import: ' . ( $end - $start ) . "s\n";
do_action( 'vamtam_after_content_import' );
}
/**
* 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 '<p><strong>' . esc_html__( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
echo esc_html__( 'The file does not exist, please try again.', 'wordpress-importer' ) . '</p>';
$this->footer();
die();
}
$import_data = $this->parse( $file );
if ( is_wp_error( $import_data ) ) {
echo '<p><strong>' . esc_html__( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
echo esc_html( $import_data->get_error_message() ) . '</p>';
$this->footer();
die();
}
$this->version = $import_data['version'];
$this->get_authors_from_import( $import_data );
$this->posts = $import_data['posts'];
$this->terms = $import_data['terms'];
$this->categories = $import_data['categories'];
$this->tags = $import_data['tags'];
$this->base_url = esc_url( $import_data['base_url'] );
if ( isset( $import_data['frontpage'] ) ) {
$this->front_page = $import_data['frontpage'];
}
if ( isset( $import_data['woocommerce_pages'] ) ) {
$this->woocommerce_pages = $import_data['woocommerce_pages'];
}
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 '<p>' . esc_html__( 'All done.', 'wordpress-importer' ) . ' <a href="' . esc_url( admin_url() ) . '">' . esc_html__( 'Have fun!', 'wordpress-importer' ) . '</a></p>';
echo '<p>' . esc_html__( 'Remember to update the passwords and roles of imported users.', 'wordpress-importer' ) . '</p>';
if ( $this->one_click ) {
if ( $this->front_page ) {
update_option( 'page_on_front', $this->processed_posts[ intval( $this->front_page ) ] );
update_option( 'show_on_front', 'page' );
}
if ( $this->woocommerce_pages ) {
$wc_pages = json_decode( $this->woocommerce_pages );
foreach ( $wc_pages as $option => $pageid ) {
if ( isset( $this->processed_posts[ intval( $pageid ) ] ) ) {
update_option( $option, $this->processed_posts[ intval( $pageid ) ] );
}
}
}
update_option( 'vamtam_last_import_map', array(
'posts' => $this->processed_posts,
'terms' => $this->processed_terms,
'authors' => $this->processed_authors,
'featured_images' => $this->featured_images,
'menus' => $this->processed_menu_items,
) );
update_option( 'vamtam_import_attachments_todo', [
'base_url' => $this->base_url,
'attachments' => $this->attachments,
] );
}
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 '<p><strong>' . esc_html__( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
echo esc_html( $file['error'] ) . '</p>';
return false;
}
$this->id = (int) $file['id'];
$import_data = $this->parse( $file['file'] );
if ( is_wp_error( $import_data ) ) {
echo '<p><strong>' . esc_html__( 'Sorry, there has been an error.', 'wordpress-importer' ) . '</strong><br />';
echo esc_html( $import_data->get_error_message() ) . '</p>';
return false;
}
$this->version = $import_data['version'];
if ( $this->version > $this->max_wxr_version ) {
echo '<div class="error"><p><strong>';
printf( esc_html__( 'This WXR file (version %s) may not be supported by this version of the importer. Please consider updating.', 'wordpress-importer' ), esc_html( $import_data['version'] ) );
echo '</strong></p></div>';
}
$this->get_authors_from_import( $import_data );
return true;
}
/**
* Retrieve authors from parsed WXR data
*
* Uses the provided author information from WXR 1.1 files
* or extracts info from each post for WXR 1.0 files
*
* @param array $import_data Data returned by a WXR parser
*/
function get_authors_from_import( $import_data ) {
if ( ! empty( $import_data['authors'] ) ) {
$this->authors = $import_data['authors'];
// no author information, grab it from the posts
} else {
foreach ( $import_data['posts'] as $post ) {
$login = sanitize_user( $post['post_author'], true );
if ( empty( $login ) ) {
printf( esc_html__( 'Failed to import author %s. Their posts will be attributed to the current user.', 'wordpress-importer' ), esc_html( $post['post_author'] ) ); echo '<br />';
continue;
}
if ( ! isset( $this->authors[ $login ] ) )
$this->authors[ $login ] = array(
'author_login' => $login,
'author_display_name' => $post['post_author'],
);
}
}
}
/**
* Map old author logins to local user IDs based on decisions made
* in import options form. Can map to an existing user, create a new user
* or falls back to the current user in case of error with either of the previous
*/
function get_author_mapping() {
if ( ! isset( $_POST['imported_authors'] ) )
return;
$create_users = $this->allow_create_users();
foreach ( (array) $_POST['imported_authors'] as $i => $old_login ) {
$old_id = isset( $this->authors[ $old_login ]['author_id'] ) ? intval( $this->authors[ $old_login ]['author_id'] ) : false;
if ( ! empty( $_POST['user_map'][ $i ] ) ) {
$user = get_userdata( intval( $_POST['user_map'][ $i ] ) );
if ( isset( $user->ID ) ) {
if ( $old_id )
$this->processed_authors[ $old_id ] = $user->ID;
$this->author_mapping[ $old_login ] = $user->ID;
}
} else if ( $create_users ) {
if ( ! empty( $_POST['user_new'][ $i ] ) ) {
$user_id = wp_create_user( $_POST['user_new'][ $i ], wp_generate_password() );
} else if ( $this->version != '1.0' ) {
$user_data = array(
'user_login' => $old_login,
'user_pass' => wp_generate_password(),
'user_email' => isset( $this->authors[ $old_login ]['author_email'] ) ? $this->authors[ $old_login ]['author_email'] : '',
'display_name' => $this->authors[ $old_login ]['author_display_name'],
'first_name' => isset( $this->authors[ $old_login ]['author_first_name'] ) ? $this->authors[ $old_login ]['author_first_name'] : '',
'last_name' => isset( $this->authors[ $old_login ]['author_last_name'] ) ? $this->authors[ $old_login ]['author_last_name'] : '',
);
$user_id = wp_insert_user( $user_data );
}
if ( ! is_wp_error( $user_id ) ) {
if ( $old_id )
$this->processed_authors[ $old_id ] = $user_id;
$this->author_mapping[ $old_login ] = $user_id;
} else {
printf( esc_html__( 'Failed to create new user for %s. Their posts will be attributed to the current user.', 'wordpress-importer' ), esc_html( $this->authors[ $old_login ]['author_display_name'] ) );
if ( defined( 'IMPORT_DEBUG' ) && IMPORT_DEBUG ) {
echo ' ' . $user_id->get_error_message(); // xss ok
}
echo '<br />';
}
}
// failsafe: if the user_id was invalid, default to the current user
if ( ! isset( $this->author_mapping[ $old_login ] ) ) {
if ( $old_id )
$this->processed_authors[ $old_id ] = (int) get_current_user_id();
$this->author_mapping[ $old_login ] = (int) get_current_user_id();
}
}
}
/**
* Create new categories based on import information
*
* Doesn't create a new category if its slug already exists
*/
function process_categories() {
$this->categories = apply_filters( 'wp_import_categories', $this->categories );
if ( empty( $this->categories ) )
return;
foreach ( $this->categories as $cat ) {
// if the category already exists leave it alone
$term_id = term_exists( $cat['category_nicename'], 'category' );
if ( $term_id ) {
if ( is_array($term_id) ) $term_id = $term_id['term_id'];
if ( isset($cat['term_id']) )
$this->processed_terms[intval($cat['term_id'])] = (int) $term_id;
continue;
}
$category_parent = empty( $cat['category_parent'] ) ? 0 : category_exists( $cat['category_parent'] );
$category_description = isset( $cat['category_description'] ) ? $cat['category_description'] : '';
$catarr = array(
'category_nicename' => $cat['category_nicename'],
'category_parent' => $category_parent,
'cat_name' => $cat['cat_name'],
'category_description' => $category_description
);
$catarr = wp_slash( $catarr );
$id = wp_insert_category( $catarr );
if ( ! is_wp_error( $id ) ) {
if ( isset($cat['term_id']) )
$this->processed_terms[intval($cat['term_id'])] = $id;
} else {
printf( __( 'Failed to import category %s', 'wordpress-importer' ), esc_html($cat['category_nicename']) );
if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
echo ': ' . $id->get_error_message();
echo '<br />';
continue;
}
$this->process_termmeta( $cat, $id['term_id'] );
}
unset( $this->categories );
}
/**
* Create new post tags based on import information
*
* Doesn't create a tag if its slug already exists
*/
function process_tags() {
$this->tags = apply_filters( 'wp_import_tags', $this->tags );
if ( empty( $this->tags ) )
return;
foreach ( $this->tags as $tag ) {
// if the tag already exists leave it alone
$term_id = term_exists( $tag['tag_slug'], 'post_tag' );
if ( $term_id ) {
if ( is_array($term_id) ) $term_id = $term_id['term_id'];
if ( isset($tag['term_id']) )
$this->processed_terms[intval($tag['term_id'])] = (int) $term_id;
continue;
}
$tag = wp_slash( $tag );
$tag_desc = isset( $tag['tag_description'] ) ? $tag['tag_description'] : '';
$tagarr = array( 'slug' => $tag['tag_slug'], 'description' => $tag_desc );
$id = wp_insert_term( $tag['tag_name'], 'post_tag', $tagarr );
if ( ! is_wp_error( $id ) ) {
if ( isset($tag['term_id']) )
$this->processed_terms[intval($tag['term_id'])] = $id['term_id'];
} else {
printf( __( 'Failed to import post tag %s', 'wordpress-importer' ), esc_html($tag['tag_name']) );
if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
echo ': ' . $id->get_error_message();
echo '<br />';
continue;
}
$this->process_termmeta( $tag, $id['term_id'] );
}
unset( $this->tags );
}
/**
* Create new terms based on import information
*
* Doesn't create a term its slug already exists
*/
function process_terms() {
$this->terms = apply_filters( 'wp_import_terms', $this->terms );
if ( empty( $this->terms ) )
return;
foreach ( $this->terms as $term ) {
// if the term already exists in the correct taxonomy leave it alone
$term_id = term_exists( $term['slug'], $term['term_taxonomy'] );
if ( $term_id ) {
if ( is_array($term_id) ) $term_id = $term_id['term_id'];
if ( isset($term['term_id']) )
$this->processed_terms[intval($term['term_id'])] = (int) $term_id;
continue;
}
if ( empty( $term['term_parent'] ) ) {
$parent = 0;
} else {
$parent = term_exists( $term['term_parent'], $term['term_taxonomy'] );
if ( is_array( $parent ) ) $parent = $parent['term_id'];
}
$term = wp_slash( $term );
$description = isset( $term['term_description'] ) ? $term['term_description'] : '';
$termarr = array( 'slug' => $term['slug'], 'description' => $description, 'parent' => intval($parent) );
$id = wp_insert_term( $term['term_name'], $term['term_taxonomy'], $termarr );
if ( ! is_wp_error( $id ) ) {
if ( isset($term['term_id']) )
$this->processed_terms[intval($term['term_id'])] = $id['term_id'];
} else {
printf( __( 'Failed to import %s %s', 'wordpress-importer' ), esc_html($term['term_taxonomy']), esc_html($term['term_name']) );
if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
echo ': ' . $id->get_error_message();
echo '<br />';
continue;
}
$this->process_termmeta( $term, $id['term_id'] );
}
unset( $this->terms );
}
/**
* Add metadata to imported term.
*
* @since 0.6.2
*
* @param array $term Term data from WXR import.
* @param int $term_id ID of the newly created term.
*/
protected function process_termmeta( $term, $term_id ) {
if ( ! isset( $term['termmeta'] ) ) {
$term['termmeta'] = array();
}
/**
* Filters the metadata attached to an imported term.
*
* @since 0.6.2
*
* @param array $termmeta Array of term meta.
* @param int $term_id ID of the newly created term.
* @param array $term Term data from the WXR import.
*/
$term['termmeta'] = apply_filters( 'wp_import_term_meta', $term['termmeta'], $term_id, $term );
if ( empty( $term['termmeta'] ) ) {
return;
}
foreach ( $term['termmeta'] as $meta ) {
/**
* Filters the meta key for an imported piece of term meta.
*
* @since 0.6.2
*
* @param string $meta_key Meta key.
* @param int $term_id ID of the newly created term.
* @param array $term Term data from the WXR import.
*/
$key = apply_filters( 'import_term_meta_key', $meta['key'], $term_id, $term );
if ( ! $key ) {
continue;
}
// Export gets meta straight from the DB so could have a serialized string
$value = maybe_unserialize( $meta['value'] );
add_term_meta( $term_id, $key, $value );
/**
* Fires after term meta is imported.
*
* @since 0.6.2
*
* @param int $term_id ID of the newly created term.
* @param string $key Meta key.
* @param mixed $value Meta value.
*/
do_action( 'import_term_meta', $term_id, $key, $value );
}
}
/**
* 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_posts() {
$this->posts = apply_filters( 'wp_import_posts', $this->posts );
foreach ( $this->posts as $post ) {
$post = apply_filters( 'wp_import_post_data_raw', $post );
if ( ! post_type_exists( $post['post_type'] ) ) {
printf( __( 'Failed to import “%s”: Invalid post type %s', 'wordpress-importer' ),
esc_html($post['post_title']), esc_html($post['post_type']) );
echo '<br />';
do_action( 'wp_import_post_exists', $post );
continue;
}
if ( isset( $this->processed_posts[$post['post_id']] ) && ! empty( $post['post_id'] ) )
continue;
if ( $post['status'] == 'auto-draft' )
continue;
if ( 'nav_menu_item' == $post['post_type'] ) {
$this->process_menu_item( $post );
continue;
}
$post_type_object = get_post_type_object( $post['post_type'] );
$post_exists = post_exists( $post['post_title'], '', $post['post_date'] );
/**
* Filter ID of the existing post corresponding to post currently importing.
*
* Return 0 to force the post to be imported. Filter the ID to be something else
* to override which existing post is mapped to the imported post.
*
* @see post_exists()
* @since 0.6.2
*
* @param int $post_exists Post ID, or 0 if post did not exist.
* @param array $post The post array to be inserted.
*/
$post_exists = apply_filters( 'wp_import_existing_post', $post_exists, $post );
if ( $post_exists && get_post_type( $post_exists ) == $post['post_type'] ) {
printf( __('%s “%s” already exists.', 'wordpress-importer'), $post_type_object->labels->singular_name, esc_html($post['post_title']) );
echo '<br />';
$comment_post_ID = $post_id = $post_exists;
$this->processed_posts[ intval( $post['post_id'] ) ] = intval( $post_exists );
} else {
$post_parent = (int) $post['post_parent'];
if ( $post_parent ) {
// if we already know the parent, map it to the new local ID
if ( isset( $this->processed_posts[$post_parent] ) ) {
$post_parent = $this->processed_posts[$post_parent];
// otherwise record the parent for later
} else {
$this->post_orphans[intval($post['post_id'])] = $post_parent;
$post_parent = 0;
}
}
// map the post author
$author = sanitize_user( $post['post_author'], true );
if ( isset( $this->author_mapping[$author] ) )
$author = $this->author_mapping[$author];
else
$author = (int) get_current_user_id();
$postdata = array(
'import_id' => $post['post_id'], 'post_author' => $author, 'post_date' => $post['post_date'],
'post_date_gmt' => $post['post_date_gmt'], 'post_content' => $post['post_content'],
'post_excerpt' => $post['post_excerpt'], 'post_title' => $post['post_title'],
'post_status' => $post['status'], 'post_name' => $post['post_name'],
'comment_status' => $post['comment_status'], 'ping_status' => $post['ping_status'],
'guid' => $post['guid'], 'post_parent' => $post_parent, 'menu_order' => $post['menu_order'],
'post_type' => $post['post_type'], 'post_password' => $post['post_password']
);
$original_post_ID = $post['post_id'];
$postdata = apply_filters( 'wp_import_post_data_processed', $postdata, $post );
$postdata = wp_slash( $postdata );
if ( 'attachment' == $postdata['post_type'] ) {
$remote_url = ! empty($post['attachment_url']) ? $post['attachment_url'] : $post['guid'];
// try to use _wp_attached file for upload folder placement to ensure the same location as the export site
// e.g. location is 2003/05/image.jpg but the attachment post_date is 2010/09, see media_handle_upload()
$postdata['upload_date'] = $post['post_date'];
if ( isset( $post['postmeta'] ) ) {
foreach( $post['postmeta'] as $meta ) {
if ( $meta['key'] == '_wp_attached_file' ) {
if ( preg_match( '%^[0-9]{4}/[0-9]{2}%', $meta['value'], $matches ) )
$postdata['upload_date'] = $matches[0];
break;
}
}
}
// $comment_post_ID = $post_id = $this->process_attachment( $postdata, $remote_url );
$this->attachments[] = [ $postdata, $remote_url ];
printf( __( 'Attachment skipped: %s', 'wpv' ), $remote_url );
echo '<br>';
continue;
} else {
$comment_post_ID = $post_id = wp_insert_post( $postdata, true );
do_action( 'wp_import_insert_post', $post_id, $original_post_ID, $postdata, $post );
}
if ( is_wp_error( $post_id ) ) {
printf( __( 'Failed to import %s “%s”', 'wordpress-importer' ),
$post_type_object->labels->singular_name, esc_html($post['post_title']) );
if ( defined('IMPORT_DEBUG') && IMPORT_DEBUG )
echo ': ' . $post_id->get_error_message();
echo '<br />';
continue;
}
if ( $post['is_sticky'] == 1 ) {
stick_post( $post_id );
}
}
// map pre-import ID to local ID
$this->processed_posts[intval($post['post_id'])] = (int) $post_id;
Vamtam_Importers::process_post_additional_data( $post, $post_id, $post_exists, $this->processed_authors, $this->featured_images );
}
unset( $this->posts );
}
/**
* Attempt to create a new menu item from import data
*
* Fails for draft, orphaned menu items and those without an associated nav_menu
* or an invalid nav_menu term. If the post type or term object which the menu item
* represents doesn't exist then the menu item will not be imported (waits until the
* end of the import to retry again before discarding).
*
* @param array $item Menu item details from WXR file
*/
function process_menu_item( $item ) {
// skip draft, orphaned menu items
if ( 'draft' == $item['status'] )
return;
$menu_slug = false;
if ( isset($item['terms']) ) {
// loop through terms, assume first nav_menu term is correct menu
foreach ( $item['terms'] as $term ) {
if ( 'nav_menu' == $term['domain'] ) {
$menu_slug = $term['slug'];
break;
}
}
}
// no nav_menu term associated with this menu item
if ( ! $menu_slug ) {
_e( 'Menu item skipped due to missing menu slug', 'wordpress-importer' );
echo '<br />';
return;
}
$menu_id = term_exists( $menu_slug, 'nav_menu' );
if ( ! $menu_id ) {
printf( __( 'Menu item skipped due to invalid menu slug: %s', 'wordpress-importer' ), esc_html( $menu_slug ) );
echo '<br />';
return;
} else {
$menu_id = is_array( $menu_id ) ? $menu_id['term_id'] : $menu_id;
}
foreach ( $item['postmeta'] as $meta ) {
${$meta['key']} = $meta['value'];
}
if ( 'taxonomy' == $_menu_item_type && isset( $this->processed_terms[intval($_menu_item_object_id)] ) ) {
$_menu_item_object_id = $this->processed_terms[intval($_menu_item_object_id)];
} else if ( 'post_type' == $_menu_item_type && isset( $this->processed_posts[intval($_menu_item_object_id)] ) ) {
$_menu_item_object_id = $this->processed_posts[intval($_menu_item_object_id)];
} else if ( 'custom' != $_menu_item_type ) {
// associated object is missing or not imported yet, we'll retry later
$this->missing_menu_items[] = $item;
return;
}
if ( isset( $this->processed_menu_items[intval($_menu_item_menu_item_parent)] ) ) {
$_menu_item_menu_item_parent = $this->processed_menu_items[intval($_menu_item_menu_item_parent)];
} else if ( $_menu_item_menu_item_parent ) {
$this->menu_item_orphans[intval($item['post_id'])] = (int) $_menu_item_menu_item_parent;
$_menu_item_menu_item_parent = 0;
}
// wp_update_nav_menu_item expects CSS classes as a space separated string
$_menu_item_classes = maybe_unserialize( $_menu_item_classes );
if ( is_array( $_menu_item_classes ) )
$_menu_item_classes = implode( ' ', $_menu_item_classes );
$args = array(
'menu-item-object-id' => $_menu_item_object_id,
'menu-item-object' => $_menu_item_object,
'menu-item-parent-id' => $_menu_item_menu_item_parent,
'menu-item-position' => intval( $item['menu_order'] ),
'menu-item-type' => $_menu_item_type,
'menu-item-title' => $item['post_title'],
'menu-item-url' => $_menu_item_url,
'menu-item-description' => $item['post_content'],
'menu-item-attr-title' => $item['post_excerpt'],
'menu-item-target' => $_menu_item_target,
'menu-item-classes' => $_menu_item_classes,
'menu-item-xfn' => $_menu_item_xfn,
'menu-item-status' => $item['status']
);
$id = $id = wp_update_nav_menu_item( $menu_id, 0, $args );
if ( $id && ! is_wp_error( $id ) )
$this->processed_menu_items[intval($item['post_id'])] = (int) $id;
foreach ( $item['postmeta'] as $meta ) {
if ( strpos( '_menu', $meta['key'] ) === false ) {
$key = apply_filters( 'import_post_meta_key', $meta['key'], $id, $item );
$value = false;
if ( $key ) {
// export gets meta straight from the DB so could have a serialized string
if ( ! $value )
$value = maybe_unserialize( $meta['value'] );
add_post_meta( $id, $key, $value );
do_action( 'import_post_meta', $id, $key, $value );
}
}
}
}
/**
* Attempt to associate posts and menu items with previously missing parents
*
* An imported post's parent may not have been imported when it was first created
* so try again. Similarly for child menu items and menu items which were missing
* the object (e.g. post) they represent in the menu
*/
function backfill_parents() {
global $wpdb;
// find parents for post orphans
foreach ( $this->post_orphans as $child_id => $parent_id ) {
$local_child_id = $local_parent_id = false;
if ( isset( $this->processed_posts[$child_id] ) )
$local_child_id = $this->processed_posts[$child_id];
if ( isset( $this->processed_posts[$parent_id] ) )
$local_parent_id = $this->processed_posts[$parent_id];
if ( $local_child_id && $local_parent_id )
$wpdb->update( $wpdb->posts, array( 'post_parent' => $local_parent_id ), array( 'ID' => $local_child_id ), '%d', '%d' );
}
// all other posts/terms are imported, retry menu items with missing associated object
$missing_menu_items = $this->missing_menu_items;
foreach ( $missing_menu_items as $item )
$this->process_menu_item( $item );
// find parents for menu item orphans
foreach ( $this->menu_item_orphans as $child_id => $parent_id ) {
$local_child_id = $local_parent_id = 0;
if ( isset( $this->processed_menu_items[$child_id] ) )
$local_child_id = $this->processed_menu_items[$child_id];
if ( isset( $this->processed_menu_items[$parent_id] ) )
$local_parent_id = $this->processed_menu_items[$parent_id];
if ( $local_child_id && $local_parent_id )
update_post_meta( $local_child_id, '_menu_item_menu_item_parent', (int) $local_parent_id );
}
}
/**
* 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 VAMTAM_WXR_Parser();
return $parser->parse( $file );
}
// Display import page title
function header() {
echo '<div class="wrap">';
echo '<h2>' . __( 'Import WordPress', 'wordpress-importer' ) . '</h2>';
$updates = get_plugin_updates();
$basename = plugin_basename(__FILE__);
if ( isset( $updates[$basename] ) ) {
$update = $updates[$basename];
echo '<div class="error"><p><strong>';
printf( __( 'A new version of this importer is available. Please update to version %s to ensure compatibility with newer export files.', 'wordpress-importer' ), $update->update->new_version );
echo '</strong></p></div>';
}
}
// Close div.wrap
function footer() {
echo '</div>';
}
/**
* Display introductory text and file upload form
*/
function greet() {
echo '<div class="narrow">';
echo '<p>'.__( 'Howdy! Upload your WordPress eXtended RSS (WXR) file and we’ll import the posts, pages, comments, custom fields, categories, and tags into this site.', 'wordpress-importer' ).'</p>';
echo '<p>'.__( 'Choose a WXR (.xml) file to upload, then click Upload file and import.', 'wordpress-importer' ).'</p>';
wp_import_upload_form( 'admin.php?import=wordpress&step=1' );
echo '</div>';
}
/**
* 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;
}
/**
* Decide whether or not the importer is allowed to create users.
* Default is true, can be filtered via import_allow_create_users
*
* @return bool True if creating users is allowed
*/
function allow_create_users() {
return apply_filters( 'import_allow_create_users', true );
}
/**
* Decide whether or not the importer should attempt to download attachment files.
* Default is true, can be filtered via import_allow_fetch_attachments. The choice
* made at the import options screen must also be true, false here hides that checkbox.
*
* @return bool True if downloading attachments is allowed
*/
function allow_fetch_attachments() {
return apply_filters( 'import_allow_fetch_attachments', true );
}
/**
* Decide what the maximum file size for downloaded attachments is.
* Default is 0 (unlimited), can be filtered via import_attachment_size_limit
*
* @return int Maximum attachment file size to import
*/
function max_attachment_size() {
return apply_filters( 'import_attachment_size_limit', 0 );
}
/**
* Added to http_request_timeout filter to force timeout at 60 seconds during import
* @return int 60
*/
function bump_request_timeout( $val ) {
return 60;
}
}
} // class_exists( 'WP_Importer' )
function vamtam_importer_init() {
if ( defined( 'VAMTAM_SAMPLES_DIR' ) ) {
$GLOBALS['vamtam_import'] = new VAMTAM_Import();
register_importer( 'wpv', 'Vamtam Demo Content', sprintf( esc_html__( 'Import posts, pages, comments, custom fields, categories, tags and sidebars from a %s dummy content file.', 'wordpress-importer' ), VAMTAM_THEME_NAME ), array( $GLOBALS['vamtam_import'], 'dispatch' ) );
}
}
add_action( 'admin_init', 'vamtam_importer_init' );