Task::delegateAction

public function delegateAction(array $taskIds, int $toUserId, int $fromUserId): ?array
{
	if (!$taskIds)
	{
		$this->addError(new Error(Loc::getMessage('BIZPROC_CONTROLLER_TASK_DELEGATE_EMPTY_TASK_IDS')));

		return null;
	}
	if ($toUserId <= 0 || $fromUserId <= 0)
	{
		$this->addError(new Error(Loc::getMessage('BIZPROC_CONTROLLER_TASK_DELEGATE_INCORRECT_USER_ID')));

		return null;
	}

	$currentUserId = $this->getCurrentUser()->getId();

	$taskService = new BizprocTaskServiceTaskService(
		new BizprocTaskServiceAccessService($currentUserId)
	);

	$options = new BizprocTaskOptionsDelegateTasksOptions($taskIds, $fromUserId, $toUserId, $currentUserId);
	$delegateTaskResult = $taskService->delegateTasks($options);

	if (!$delegateTaskResult->isSuccess())
	{
		$this->addErrors($delegateTaskResult->getErrors());

		return null;
	}

	return [
		'message' => $delegateTaskResult->getSuccessDelegateTaskMessage(),
	];
}