Sprig_Core::__sleep PHP Метод

    public function __sleep()
    {
        foreach ($this->_related as $field => $object) {
            if ($object instanceof Database_Result) {
                if ($object instanceof Database_Result_Cached) {
                    continue;
                }
                // Convert result object to cached result to allow for serialization
                // Currently no way to get the $_query property form the result to pass to the cached result
                // @see http://dev.kohanaphp.com/issues/2297
                $this->_related[$field] = new Database_Result_Cached($object->as_array(), '');
            }
        }
        // Return array of all properties to get them serialised
        $props = array();
        foreach ($this as $prop => $val) {
            $props[] = $prop;
        }
        return $props;
    }