Node::_mergeQueryFilters PHP Method

    protected function _mergeQueryFilters(&$query, $key, $values)
    {
        if (!empty($query[$key])) {
            if (is_array($query[$key])) {
                $query[$key] = Hash::merge($query[$key], $values);
            }
        } else {
            $query[$key] = $values;
        }
    }