class.ilCategoryExporter.php

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<?php

declare(strict_types=1);

class ilCategoryExporter extends ilXmlExporter
{
    public function getXmlExportHeadDependencies(string $a_entity, string $a_target_release, array $a_ids): array
    {
        // always trigger container because of co-page(s)
        return [
            [
                'component' => 'Services/Container',
                'entity' => 'struct',
                'ids' => $a_ids
            ]
        ];
    }

    public function getXmlExportTailDependencies(string $a_entity, string $a_target_release, array $a_ids): array
    {
        if ($a_entity === "cat") {
            $tax_ids = [];
            foreach ($a_ids as $id) {
                $t_ids = ilObjTaxonomy::getUsageOfObject((int) $id);
                if (count($t_ids) > 0) {
                    $tax_ids[$t_ids[0]] = $t_ids[0];
                }
            }

            return [
                [
                    "component" => "Services/Taxonomy",
                    "entity" => "tax",
                    "ids" => $tax_ids
                ]
            ];
        }
        return [];
    }

    public function getXmlRepresentation(string $a_entity, string $a_schema_version, string $a_id): string
    {
        $all_ref = ilObject::_getAllReferences((int) $a_id);
        $cat_ref_id = end($all_ref);
        $category = ilObjectFactory::getInstanceByRefId($cat_ref_id, false);

        if (!$category instanceof ilObjCategory) {
            $GLOBALS['ilLog']->write(__METHOD__ . $a_id . ' is not instance of type category!');
            return '';
        }


        $writer = new ilCategoryXmlWriter($category);
        $writer->setMode(ilCategoryXmlWriter::MODE_EXPORT);
        $writer->export(false);
        return $writer->getXml();
    }

    public function getValidSchemaVersions(string $a_entity): array
    {
        return [
            "7.0.0" => [
                'namespace' => 'https://www.ilias.de/Modules/Category/cat/7_0',
                'xsd_file' => 'ilias_cat_7_0.xsd',
                'uses_dataset' => false,
                'min' => '7.0',
                'max' => ''
            ],
            "4.3.0" => [
                "namespace" => "https://www.ilias.de/Modules/Category/cat/4_3",
                "xsd_file" => "ilias_cat_4_3.xsd",
                "uses_dataset" => false,
                "min" => "4.3.0",
                "max" => ""
            ]
        ];
    }

    public function init(): void
    {
    }
}