wpdb->get_charset_collate(); $table_name = DatabaseTable::guest_meta(); $sql = "CREATE TABLE IF NOT EXISTS {$table_name} ( meta_id int NOT NULL AUTO_INCREMENT, guest_id int NOT NULL, meta_key varchar(255) NOT NULL, meta_value longtext NOT NULL, PRIMARY KEY (meta_id), KEY guest_id (guest_id) ) {$charset_collate};"; return $this->wpdb->query( $sql ); } }