faces.php

См. документацию.

<?php
 
namespace Bitrix\Bizproc\Controller\Workflow;
 
use Bitrix\Bizproc;
use Bitrix\Bizproc\UI\WorkflowFacesView;
use Bitrix\Main\Localization\Loc;
 
class Faces extends Bizproc\Controller\Base
{
    public function loadAction(string $workflowId, int $userId, int $runningTaskId = 0): ?WorkflowFacesView
    {
        if (empty($workflowId))
        {
            $this->addError(new Bizproc\Error('empty workflow id'));
 
            return null;
        }
 
        if ($runningTaskId < 0)
        {
            $this->addError(new Bizproc\Error('negative running task id'));
 
            return null;
        }
 
        $currentUserId = (int)($this->getCurrentUser()?->getId() ?? 0); // $this->getCurrentUser()->getId() return string
 
        $accessService = new Bizproc\Api\Service\WorkflowAccessService();
        $canViewFacesResponse = $accessService->canViewFaces(
            new Bizproc\Api\Request\WorkflowAccessService\CanViewFacesRequest($workflowId, $userId, $currentUserId)
        );
 
        if ($canViewFacesResponse->isSuccess())
        {
            return $this->getWorkflowFaces($workflowId, $runningTaskId);
        }
 
        $this->addError(
            new Bizproc\Error(
                Loc::getMessage('BIZPROC_CONTROLLER_WORKFLOW_FACES_CAN_READ_ERROR'), 'ACCESS_DENIED'
            )
        );
 
        return null;
    }
 
    private function getWorkflowFaces(string $workflowId, int $runningTaskId): WorkflowFacesView
    {
        return new WorkflowFacesView($workflowId, $runningTaskId === 0 ? null : $runningTaskId);
    }
}