class.ilAdvancedMetaDataExporter.php

Go to the documentation of this file.

<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Export/classes/class.ilXmlExporter.php");

class ilAdvancedMetaDataExporter extends ilXmlExporter
{
        private $ds;

        function init()
        {
                
        }

        function getXmlExportHeadDependencies($a_entity, $a_target_release, $a_ids)
        {
                return array();
        }


        function getXmlExportTailDependencies($a_entity, $a_target_release, $a_ids)
        {
                return array();
        }

        public function getXmlRepresentation($a_entity, $a_schema_version, $a_id)
        {
                global $ilDB;
                
                $parts = explode(":", $a_id);
                if(sizeof($parts) != 2)
                {
                        return;
                }
                $obj_id = $parts[0];
                $rec_id = $parts[1];
                
                include_once('Services/AdvancedMetaData/classes/class.ilAdvancedMDFieldDefinition.php');
                $field_ids = array();
                foreach(ilAdvancedMDFieldDefinition::_getDefinitionsByRecordId($rec_id) as $def)
                {
                        $field_ids[] = $def->getFieldId();
                }
                
                if(!sizeof($field_ids))
                {
                        return;
                }
                        
                $xml = new ilXmlWriter;
                $xml->xmlStartTag('AdvancedMetaData');
                                        
                $query = "SELECT field_id,value,sub_id,sub_type".
                        " FROM adv_md_values ".
                        " WHERE obj_id = ".$ilDB->quote($a_id, "integer").
                        " AND ".$ilDB->in("field_id", $field_ids, "", "integer");
                $set = $ilDB->query($query);
                while($row = $ilDB->fetchAssoc($set))
                {
                        if(trim($row['value']) != "")
                        {
                                $xml->xmlElement('Value',
                                        array(
                                                'id' => ilAdvancedMDFieldDefinition::_lookupImportId($row["field_id"]),
                                                'sub_id' => $row['sub_id'],
                                                'sub_type' => $row['sub_type'],
                                        ),
                                        $row['value']);
                        }
                }
                
                $xml->xmlEndTag('AdvancedMetaData');    
                
                return $xml->xmlDumpMem(false);
        }       
        
        function getValidSchemaVersions($a_entity)
        {
                return array (
                        "4.4.0" => array(
                                "namespace" => "http://www.ilias.de/Services/AdvancedMetaData/advmd/4_4",
                                "xsd_file" => "ilias_advmd_4_4.xsd",
                                "uses_dataset" => true,
                                "min" => "4.4.0",
                                "max" => "")
                );
        }

}

?>