decrementeventscounter.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\Internals\EventManager\EventSubscriber\EventCategory;
 
use Bitrix\Calendar\Core\Event\Event as CalendarEvent;
use Bitrix\Calendar\Core\Mappers\Factory;
use Bitrix\Calendar\Event\Event\AfterOpenEventDeleted;
use Bitrix\Calendar\Internals\EventManager\EventSubscriber\EventSubscriberInterface;
use Bitrix\Calendar\Internals\EventManager\EventSubscriber\EventSubscriberResponseTrait;
use Bitrix\Calendar\OpenEvents\Service\CategoryService;
use Bitrix\Main\DI\ServiceLocator;
use Bitrix\Main\Event;
use Bitrix\Main\EventResult;
 
final class DecrementEventsCounter implements EventSubscriberInterface
{
    use EventSubscriberResponseTrait;
 
    public function __invoke(Event $event): EventResult
    {
        $eventId = (int)$event->getParameter('eventId');

        $mapperFactory = ServiceLocator::getInstance()->get('calendar.service.mappers.factory');
        $calendarEvent = $mapperFactory->getEvent()->getById($eventId);
 
        $categoryId = $calendarEvent->getEventOption()->getCategoryId();
        CategoryService::getInstance()->updateEventsCounter($categoryId, false);
 
        return $this->makeSuccessResponse();
    }
 
    public function getEventClasses(): array
    {
        return [
            AfterOpenEventDeleted::class,
        ];
    }
}