Uploader::loadFile

private function loadFile(int $fileId): LoadResult
{
	$result = new LoadResult($fileId);
	if ($fileId < 1)
	{
		return $result->addError(new UploaderError(UploaderError::FILE_LOAD_FAILED));
	}

	$fileInfo = $this->createFileInfo($fileId);
	if ($fileInfo)
	{
		$result->setFile($fileInfo);
	}
	else
	{
		return $result->addError(new UploaderError(UploaderError::FILE_LOAD_FAILED));
	}

	return $result;
}