Comment::updateAction

public function updateAction(int $id, array $fields, string $eventId = ''): ?array
{
	$timeline = TimelineTable::getById($id)->fetchObject();
	if(!$timeline)
	{
		$this->addError(new Error(Loc::getMessage('RPA_COMMENT_NOT_FOUND_ERROR')));
		return null;
	}

	$userPermissions = Driver::getInstance()->getUserPermissions();
	if(!$userPermissions->canUpdateComment($timeline))
	{
		$this->addError(new Error(Loc::getMessage('RPA_MODIFY_COMMENT_ACCESS_DENIED')));
		return null;
	}

	$emptyFields = $this->getEmptyRequiredParameterNames($fields, ['description']);
	if(!empty($emptyFields))
	{
		$this->addError(new Error('Empty required fields: '.implode(', ', $emptyFields)));
		return null;
	}

	$uiComment = static::getUiComment();
	$previouslyMentionedUserIds = static::getCommentParser()->getMentionedUserIds($timeline->getDescription());

	$timeline->setDescription($fields['description']);
	$files = $this->processFiles($fields);
	$result = $timeline->save();
	if($result->isSuccess())
	{
		$uiComment->saveFiles($timeline->getId(), $files);
		$this->sendMentions($timeline, $previouslyMentionedUserIds);
		Driver::getInstance()->getPullManager()->sendTimelineUpdateEvent($timeline, $eventId);
		return [
			'comment' => $timeline->preparePublicData(),
		];
	}

	$this->addErrors($result->getErrors());
	return null;
}