function filterItem($data, $valueIdentifier)
    {
        $value = Utils::arrayGetByPath($data, $valueIdentifier);
        $value = $this->applyFilters($value, $valueIdentifier, $data);
        if (is_array($value)) {
            foreach (array_keys($value) as $k) {
                $value[$k] = $this->filterItem($data, "{$valueIdentifier}[{$k}]");
            }
        }
        return $value;
    }