* @param id the unique identifier of the character mapping item
     * @return an OptionalEntity containing the character mapping item if found, empty otherwise
     */
    public OptionalEntity<CharMappingItem> getCharMappingItem(final String dictId, final long id) {
        return getCharMappingFile(dictId).map(file -> file.get(id).get());
    }

    /**
     * Stores a character mapping item in the specified dictionary.
     * <p>

     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, () -> asListHtml(form.dictId));
        charMappingService.getCharMappingItem(form.dictId, form.id).ifPresent(entity -> {
            form.inputs = entity.getInputsValue();
            form.output = entity.getOutput();
        }).orElse(() -> {

    @Execute
    public JsonResponse<ApiResult> get$setting(final String dictId, final long id) {
        return asJson(new ApiResult.ApiConfigResponse()
                .setting(charMappingService.getCharMappingItem(dictId, id).map(entity -> createEditBody(entity, dictId)).orElseGet(() -> {
                    throwValidationErrorApi(messages -> messages.addErrorsCrudCouldNotFindCrudTable(GLOBAL, String.valueOf(id)));