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* File with the class to handle data from Smartcrawl SEO.
* @package WPSEO\Admin\Import\Plugins
* Class with functionality to import & clean Smartcrawl SEO post metadata.
class WPSEO_Import_Smartcrawl_SEO extends WPSEO_Plugin_Importer {
protected $plugin_name = 'Smartcrawl SEO';
* Meta key, used in SQL LIKE clause for delete query.
protected $meta_key = '_wds_%';
* Array of meta keys to detect and import.
protected $clone_keys = [
'old_key' => '_wds_metadesc',
'old_key' => '_wds_title',
'old_key' => '_wds_canonical',
'new_key' => 'canonical',
'old_key' => '_wds_focus-keywords',
'old_key' => '_wds_meta-robots-noindex',
'new_key' => 'meta-robots-noindex',
'old_key' => '_wds_meta-robots-nofollow',
'new_key' => 'meta-robots-nofollow',
* Used for importing Twitter and Facebook meta's.
protected $social_keys = [];
* Handles post meta data to import.
* @return bool Import success status.
protected function import() {
$return = parent::import();
$this->import_opengraph();
* Imports the OpenGraph meta keys saved by Smartcrawl.
* @return bool Import status.
protected function import_opengraph() {
'title' => 'opengraph-title',
'description' => 'opengraph-description',
'images' => 'opengraph-image',
return $this->post_find_import( '_wds_opengraph' );
* Imports the Twitter meta keys saved by Smartcrawl.
* @return bool Import status.
protected function import_twitter() {
'title' => 'twitter-title',
'description' => 'twitter-description',
return $this->post_find_import( '_wds_twitter' );
* Imports a post's serialized post meta values.
* @param int $post_id Post ID.
* @param string $key The meta key to import.
protected function import_serialized_post_meta( $post_id, $key ) {
$data = get_post_meta( $post_id, $key, true );
$data = maybe_unserialize( $data );
foreach ( $this->social_keys as $key => $meta_key ) {
if ( ! isset( $data[ $key ] ) ) {
if ( is_array( $value ) ) {
$this->maybe_save_post_meta( $meta_key, $value, $post_id );
* Finds all the posts with a certain meta key and imports its values.
* @param string $key The meta key to search for.
* @return bool Import status.
protected function post_find_import( $key ) {
$query_posts = new WP_Query( 'post_type=any&meta_key=' . $key . '&order=ASC&fields=ids&nopaging=true' );
if ( empty( $query_posts->posts ) ) {
foreach ( array_values( $query_posts->posts ) as $post_id ) {
$this->import_serialized_post_meta( $post_id, $key );