class.ilGroupImporter.php

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<?php

declare(strict_types=1);
class ilGroupImporter extends ilXmlImporter
{
    private ?ilObjGroup $group = null;

    public function __construct()
    {
    }

    public function init(): void
    {
    }

    public function importXmlRepresentation(
        string $a_entity,
        string $a_id,
        string $a_xml,
        ilImportMapping $a_mapping
    ): void {
        if ($new_id = $a_mapping->getMapping('components/ILIAS/Container', 'objs', $a_id)) {
            $refs = ilObject::_getAllReferences((int) $new_id);
            $ref_id = end($refs);
            $this->group = ilObjectFactory::getInstanceByRefId((int) $ref_id, false);
        } elseif ($new_id = $a_mapping->getMapping('components/ILIAS/Container', 'refs', "0")) {
            $this->group = ilObjectFactory::getInstanceByRefId((int) $new_id, false);
        } elseif (!$this->group instanceof ilObjGroup) {
            $this->group = new ilObjGroup();
            $this->group->create();
        }
        try {
            $parser = new ilGroupXMLParser($this->group, $a_xml, 0);
            $parser->setMode(ilGroupXMLParser::$UPDATE);

            // avoid duplicate MD sets
            $this->group->deleteMetaData();

            $parser->startParsing();
            $a_mapping->addMapping('components/ILIAS/Group', 'grp', $a_id, (string) $this->group->getId());
            $a_mapping->addMapping(
                'components/ILIAS/MetaData',
                'md',
                $a_id . ':0:grp',
                $this->group->getId() . ':0:grp'
            );

        } catch (ilSaxParserException | ilWebLinkXmlParserException $e) {
            $GLOBALS['DIC']->logger()->grp()->warning('Parsing failed with message, "' . $e->getMessage() . '".');
        }
    }
}