Sorting CS extra fields list values

#setLanguageLevel 3;

// alphabetically sort the list values of an text field
// domain = domain of the extra_field, 4 = ticket, can be set to 0 to disable criteria
// extraTableId = Id of the extra table that the field is from,  can be set to 0 to disable criteria
// fieldName = name of the field, without the table prefix, example : x_product
// returns false when field not found, otherwise true
Bool sortExtraFieldOptions(Integer domain, Integer extraTableId, String fieldName){
  // Get current field params
  SearchEngine extraFieldParamSearch;

  extraFieldParamSearch.addField("extra_fields.id");
  extraFieldParamSearch.addField("extra_fields.params");

  if (domain > 0) {
    extraFieldParamSearch.addCriteria("extra_fields.domain", "OperatorEquals", domain.toString());
  }

  if (extraTableId > 0) {
    extraFieldParamSearch.addCriteria("extra_fields.target_extra_table", "OperatorEquals", extraTableId.toString());
  }

  extraFieldParamSearch.addCriteria("extra_fields.field_name", "OperatorEquals", fieldName);

  extraFieldParamSearch.setLimit(1);
  extraFieldParamSearch.execute();
  if (!extraFieldParamSearch.eof()) {
    // params are split by \n
    String[] parameters = extraFieldParamSearch.getField("extra_fields.params").split("\n");
    // use map since the keys are automatically sorted alphabetically on insert
    Map sortedOptions;
    // string array of the existing parameters that aren't list options + the options now sorted alphabetically
    String[] newParameters;
    for (Integer i = 0; i < parameters.length(); i++) {
      // get the parameter value, make sure we don't have an \n in it since it the \n is used as parameter delimiter
      String parameter = parameters[i].stripLeadingAndTrailing("\n");
      // if parameters starts with 'option=' it means this is a list option parameter
      if (parameter.beginsWith("option=")) {
        // get the list option value
        String option = parameter.after("option=");
        sortedOptions.insert(option, "");
      }
      else // none list option parameter, add directly to new parameters array {
        newParameters.pushBack(parameter + "\n");
      }
    }
    // add the now sorted list values back as option parameter
    for (sortedOptions.first(); !sortedOptions.eof(); sortedOptions.next()) {
      newParameters.pushBack("option=" + sortedOptions.getKey() + "\n");
    }
    String newParametersString;
    // concat the new parameters back to a single string
    for (Integer i = 0; i < newParameters.length(); i++) {
      newParametersString += newParameters[i];
      print(newParameters[i]);
    }
    // update params in the database
    SearchEngine extraFieldParamUpdate;
    extraFieldParamUpdate.addData("extra_fields.params", newParametersString);
    extraFieldParamUpdate.addCriteria("extra_fields.id", "OperatorEquals", extraFieldParamSearch.getField("extra_fields.id";

    extraFieldParamUpdate.update();

    return true;
  }
  return false;
}

sortExtraFieldOptions(4, 0, "x_area");