groupchildaction.php

См. документацию.

<?php
 
namespace Bitrix\Main\Grid\Panel\Action\Group;
 
use Bitrix\Main\Filter\Filter;
use Bitrix\Main\Grid\Panel\Snippet\Onchange;
use Bitrix\Main\HttpRequest;
use Bitrix\Main\Result;
 
abstract class GroupChildAction
{
    abstract public static function getId(): string;
 
    abstract public function getName(): string;
 
    abstract public function processRequest(HttpRequest $request, bool $isSelectedAllRows, ?Filter $filter): ?Result;
 
    abstract protected function getOnchange(): Onchange;
 
    public function getDropdownItem(): array
    {
        return [
            'VALUE' => static::getId(),
            'NAME' => $this->getName(),
            'ONCHANGE' => $this->getOnchange()->toArray(),
        ];
    }
 
    protected function getRequestRows(HttpRequest $request): ?array
    {
        $ids = $request->getPost('rows');
        if (!is_array($ids))
        {
            return null;
        }
 
        return $ids;
    }
}