Task::setGroup

public function setGroup($id, $groupId)
{
	$result = [];

	$oldTask = TaskModel::createFromId((int)$id);
	$newTask = clone $oldTask;
	$newTask->setGroupId((int)$groupId);

	if (!(new TaskAccessController($this->userId))->check(ActionDictionary::ACTION_TASK_SAVE, $oldTask, $newTask))
	{
		$this->addForbiddenError();
		return $result;
	}

	$task = CTaskItem::getInstance($id, UtilUser::getId());
	$task->update(array('GROUP_ID' => $groupId));

	return $result;
}