Pimcore\Model\Object\Service::doFilterCustomGridFieldDefinitions PHP Method

    private static function doFilterCustomGridFieldDefinitions(&$layout, $fieldDefinitions)
    {
        if ($layout instanceof ClassDefinition\Data) {
            $name = $layout->getName();
            if (!$fieldDefinitions[$name] || $fieldDefinitions[$name]->getInvisible()) {
                return false;
            } else {
                $layout->setNoteditable($layout->getNoteditable() | $fieldDefinitions[$name]->getNoteditable());
            }
        }
        if (method_exists($layout, "getChilds")) {
            $children = $layout->getChilds();
            if (is_array($children)) {
                $count = count($children);
                for ($i = $count - 1; $i >= 0; $i--) {
                    $child = $children[$i];
                    if (!self::doFilterCustomGridFieldDefinitions($child, $fieldDefinitions)) {
                        unset($children[$i]);
                    }
                }
                $layout->setChilds(array_values($children));
            }
        }
        return true;
    }