class.ilFolderXmlWriter.php

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<?php

declare(strict_types=1);

class ilFolderXmlWriter extends ilXmlWriter
{
    private bool $add_header;
    private int $obj_id = 0;
    private ?ilObject $folder = null;

    public function __construct(bool $a_add_header)
    {
        $this->add_header = $a_add_header;
        parent::__construct();
    }

    public function setObjId(int $a_obj_id): void
    {
        $this->obj_id = $a_obj_id;
    }

    public function write(): void
    {
        $this->init();
        if ($this->add_header) {
            $this->buildHeader();
        }
        $this->xmlStartTag('Folder', ['Id' => $this->folder->getId()]);
        $this->xmlElement('Title', [], $this->folder->getTitle());
        $this->xmlElement('Description', [], $this->folder->getDescription());
        ilContainerSortingSettings::_exportContainerSortingSettings($this, $this->obj_id);
        $this->xmlEndTag('Folder');
    }

    protected function buildHeader(): void
    {
        $this->xmlSetGenCmt("Export of a ILIAS Folder");
        $this->xmlHeader();
    }

    protected function init(): void
    {
        $this->xmlClear();

        if (!$this->obj_id) {
            throw new UnexpectedValueException('No obj_id given: ');
        }
        if (!$this->folder = ilObjectFactory::getInstanceByObjId($this->obj_id, false)) {
            throw new UnexpectedValueException('Invalid obj_id given: ' . $this->obj_id);
        }
        if ($this->folder->getType() !== 'fold') {
            throw new UnexpectedValueException('Invalid obj_id given. Object is not of type folder');
        }
    }
}