Legacy_Validator.class.php

<?php
 
if (!defined('XOOPS_ROOT_PATH')) {
    exit();
}
 
require_once XOOPS_ROOT_PATH . '/core/XCube_Validator.class.php';
 
class XCube_ObjectExistValidator extends XCube_Validator
{
    public function isValid(&$form, $vars)
    {
        if ($form->isNull()) {
            return true;
        } else {
            $handleName = $vars['handler'];
            $moduleName = $vars['module'] ?? null;
 
            if (null == $moduleName) {
                $handler =& xoops_gethandler($handleName);
            } else {
                $handler =& xoops_getmodulehandler($handleName, $moduleName);
            }
            $obj =& $handler->get($form->getValue());
 
            return is_object($obj);
        }
    }
}