public function __construct($orm, $fields)
{
$this->hash = self::hash($orm);
$this->orm = is_string($orm) ? Model::factory($orm) : $orm;
$this->calculateBaseFilter();
$this->resetFilters();
// build model names
$this->model_name = $this->orm->getClassName();
$this->short_model_name = ($len = strlen(Model::$auto_prefix_models)) ? substr($this->model_name, $len) : $this->model_name;
// take care of fields
$this->fields = self::parseFields($fields, $this->model_name);
}
