class.ilContainerReferenceExporter.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once './Services/Export/classes/class.ilXmlExporter.php';

abstract class ilContainerReferenceExporter extends ilXmlExporter
{
        public function getXmlExportHeadDependencies($a_entity, $a_target_release, $a_ids)
        {
                include_once './Services/Export/classes/class.ilExportOptions.php';
                $eo = ilExportOptions::getInstance();

                $obj_id = end($a_ids);


                $GLOBALS['ilLog']->write(__METHOD__.': '.$obj_id);
                if($eo->getOption(ilExportOptions::KEY_ROOT) != $obj_id)
                {
                        return array();
                }
                if(count(ilExportOptions::getInstance()->getSubitemsForExport()) > 1)
                {
                        return array(
                                array(
                                        'component'             => 'Services/Container',
                                        'entity'                => 'struct',
                                        'ids'                   => $a_ids
                                )
                        );
                }
                return array();
        }
        
        abstract protected function initWriter(ilContainerReference $ref);


        public function getXmlRepresentation($a_entity, $a_schema_version, $a_id)
        {
                $ref_ref_id = end(ilObject::_getAllReferences($a_id));
                $ref = ilObjectFactory::getInstanceByRefId($ref_ref_id,false);

                if(!$ref instanceof ilContainerReference)
                {
                        $GLOBALS['ilLog']->write(__METHOD__. $a_id . ' is not instance of type category!');
                        return '';
                }
                $writer = $this->initWriter($ref);
                $writer->setMode(ilContainerReferenceXmlWriter::MODE_EXPORT);
                $writer->export(false);
                return $writer->getXml();
        }

        public function getValidSchemaVersions($a_entity)
        {
                return array (
                        "4.3.0" => array(
                                "namespace" => "http://www.ilias.de/Modules/CategoryReference/catr/4_3",
                                "xsd_file" => "ilias_catr_4_3.xsd",
                                "uses_dataset" => false,
                                "min" => "4.3.0",
                                "max" => "")
                );
        }

        public function init() {
                
        }

}
?>