caffeina-core / core

      $data = [];

      if (!is_callable($transformer)) $transformer = function($k,$v){ return [$k=>$v]; };

      foreach (get_object_vars($this) as $key => $value) {

        if ($res = $transformer($key, $value)){

          $data[key($res)] = current($res);

        }

      }

      foreach (static::relationOptions()->links as $hash => $link) {

          $value = $value ? $value->export(null,$disabled_relations) : false;

        unset($disabled_relations[$hash]);

        if ($res = $transformer($relation, $value)){

          $data[key($res)] = current($res);

        }

      }

      return $data;