public function params($model = null)
    {
        $request = $this->_View->getRequest();

        if (empty($model)) {
            $model = $this->defaultModel();
        }
        if (!$request->getParam('paging') || !$request->getParam('paging.' . $model)) {
            return [];
        }

        return $request->getParam('paging.' . $model);
    }