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<?php /** * File with the class to handle data from Squirrly. * * @package WPSEO\Admin\Import\Plugins */ /** * Class with functionality to import & clean Squirrly post metadata. */ class WPSEO_Import_Squirrly extends WPSEO_Plugin_Importer { /** * The plugin name. * * @var string */ protected $plugin_name = 'Squirrly SEO'; /** * Holds the name of the table Squirrly uses to store data. * * @var string */ protected $table_name; /** * Meta key, used in SQL LIKE clause for delete query. * * @var string */ protected $meta_key = '_sq_post_keyword'; /** * Data to import from (and the target to field) the serialized array stored in the SEO field in the Squirrly table. * * @var array */ protected $seo_field_keys = [ 'noindex' => 'meta-robots-noindex', 'nofollow' => 'meta-robots-nofollow', 'title' => 'title', 'description' => 'metadesc', 'canonical' => 'canonical', 'cornerstone' => '_yst_is_cornerstone', 'tw_media' => 'twitter-image', 'tw_title' => 'twitter-title', 'tw_description' => 'twitter-description', 'og_title' => 'opengraph-title', 'og_description' => 'opengraph-description', 'og_media' => 'opengraph-image', 'focuskw' => 'focuskw', ]; /** * WPSEO_Import_Squirrly constructor. */ public function __construct() { parent::__construct(); global $wpdb; $this->table_name = $wpdb->prefix . 'qss'; } /** * Imports the post meta values to Yoast SEO. * * @return bool Import success status. */ protected function import() { $results = $this->retrieve_posts(); foreach ( $results as $post ) { $return = $this->import_post_values( $post->identifier ); if ( ! $return ) { return false; } } return true; } /** * Retrieve the posts from the Squirrly Database. * * @return array Array of post IDs from the DB. */ protected function retrieve_posts() { global $wpdb; return $wpdb->get_results( $wpdb->prepare( $this->retrieve_posts_query(), get_current_blog_id() ) ); } /** * Returns the query to return an identifier for the posts to import. * * @return string Query to get post ID's from the DB. */ protected function retrieve_posts_query() { return "SELECT post_id AS identifier FROM {$this->table_name} WHERE blog_id = %d"; } /** * Removes the DB table and the post meta field Squirrly creates. * * @return bool Cleanup status. */ protected function cleanup() { global $wpdb; // If we can clean, let's clean. $wpdb->query( "DROP TABLE {$this->table_name}" ); // This removes the post meta field for the focus keyword from the DB. parent::cleanup(); // If we can still see the table, something went wrong. if ( $this->detect() ) { $this->cleanup_error_msg(); return false; } return true; } /** * Detects whether there is post meta data to import. * * @return bool Boolean indicating whether there is something to import. */ protected function detect() { global $wpdb; $result = $wpdb->get_var( "SHOW TABLES LIKE '{$this->table_name}'" ); if ( is_wp_error( $result ) || is_null( $result ) ) { return false; } return true; } /** * Imports the data of a post out of Squirrly's DB table. * * @param mixed $post_identifier Post identifier, can be ID or string. * * @return bool Import status. */ private function import_post_values( $post_identifier ) { $data = $this->retrieve_post_data( $post_identifier ); if ( ! $data ) { return false; } if ( ! is_numeric( $post_identifier ) ) { $post_id = url_to_postid( $post_identifier ); } if ( is_numeric( $post_identifier ) ) { $post_id = (int) $post_identifier; $data['focuskw'] = $this->maybe_add_focus_kw( $post_identifier ); } foreach ( $this->seo_field_keys as $squirrly_key => $yoast_key ) { $this->import_meta_helper( $squirrly_key, $yoast_key, $data, $post_id ); } return true; } /** * Retrieves the Squirrly SEO data for a post from the DB. * * @param int $post_identifier Post ID. * * @return array|bool Array of data or false. */ private function retrieve_post_data( $post_identifier ) { global $wpdb; if ( is_numeric( $post_identifier ) ) { $post_identifier = (int) $post_identifier; $query_where = 'post_id = %d'; } if ( ! is_numeric( $post_identifier ) ) { $query_where = 'URL = %s'; } $replacements = [ get_current_blog_id(), $post_identifier, ]; $data = $wpdb->get_var( $wpdb->prepare( "SELECT seo FROM {$this->table_name} WHERE blog_id = %d AND " . $query_where, $replacements ) ); if ( ! $data || is_wp_error( $data ) ) { return false; } $data = maybe_unserialize( $data ); return $data; } /** * Squirrly stores the focus keyword in post meta. * * @param int $post_id Post ID. * * @return string The focus keyword. */ private function maybe_add_focus_kw( $post_id ) { $focuskw = get_post_meta( $post_id, '_sq_post_keyword', true ); if ( $focuskw ) { $focuskw = json_decode( $focuskw ); return $focuskw->keyword; } return ''; } }
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