Money::extractValue

static function extractValue(FieldType $fieldType, array $field, array $request)
{
	$value = parent::extractValue($fieldType, $field, $request);

	if ($value && mb_strpos($value, '|') !== false)
	{
		list($sum, $currency) = explode('|', $value);
		$value = doubleval($sum) . '|' . $currency;
	}

	return $value;
}