ot_typo3/ot_templating/Classes/ViewHelpers/Events/GetByIdViewHelper.php

<?php

namespace Opentalent\OtTemplating\ViewHelpers\Events;

use FluidTYPO3\Vhs\Traits\TemplateVariableViewHelperTrait;
use Opentalent\OtTemplating\Domain\Repository\EventRepository;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;

/**
 *   This view helper return the Event object matching the given id
 *
 *     {namespace ot=Opentalent\OtTemplating\ViewHelpers}
 *
 *     <ot:events.getById as="event"
 *                       eventId="1">
 *          <f:debug>{event}</f:debug>
 *     </ot:events.getById>
 *
 * @package Opentalent\OtTemplating\ViewHelpers
 */
class GetByIdViewHelper extends AbstractViewHelper {

    use TemplateVariableViewHelperTrait;
    /**
     * >> Required to prevent typo3 to escape the html output
     * @var boolean
     */
    protected $escapeOutput = false;

    /**
     * @var \Opentalent\OtTemplating\Domain\Repository\EventRepository
     *
     */
    protected $eventRepository;

    public function initializeArguments()
    {
        $this->registerArgument(
            'as',
            'string',
            'Name of the returned array',
            true
        );
        $this->registerArgument(
            'eventId',
            'integer',
            'Id of the event',
            true
        );
    }

    /**
     * @return string
     */
    public function render()
    {
        $as = $this->arguments['as'];
        $eventId = $this->arguments['eventId'];

        $event = $this->eventRepository->findById($eventId);
        $variables = [$as => $event];
        return $this->renderChildrenWithVariables($variables);
    }

    /**
     * @param \Opentalent\OtTemplating\Domain\Repository\EventRepository $eventRepository
     */
    public function injectEventRepository(EventRepository $eventRepository)
    {
        $this->eventRepository = $eventRepository;
    }
}