class.ilSCORM2004Chapter.php

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<?php

/* Copyright (c) 1998-2011 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once("./Modules/Scorm2004/classes/class.ilSCORM2004Node.php");

class ilSCORM2004Chapter extends ilSCORM2004Node
{
    public $tree;

    public function __construct($a_slm_object, $a_id = 0)
    {
        parent::__construct($a_slm_object, $a_id);
        $this->setType("chap");
    }

    public function delete($a_delete_meta_data = true)
    {
        $node_data = $this->tree->getNodeData($this->getId());
        $this->delete_rec($a_delete_meta_data);
        $this->tree->deleteTree($node_data);
        parent::deleteSeqInfo();
    }

    private function delete_rec($a_delete_meta_data = true)
    {
        $childs = $this->tree->getChilds($this->getId());
        foreach ($childs as $child) {
            $obj = ilSCORM2004NodeFactory::getInstance($this->slm_object, $child["obj_id"], false);
            if (is_object($obj)) {
                if ($obj->getType() == "chap") {
                    $obj->delete_rec($a_delete_meta_data);
                }
                if ($obj->getType() == "sco") {
                    $obj->delete($a_delete_meta_data);
                }
            }
            unset($obj);
        }
        parent::delete($a_delete_meta_data);
    }

    public function create($a_upload = false, $a_template = false)
    {
        include_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004Item.php");
        include_once("./Modules/Scorm2004/classes/seq_editor/class.ilSCORM2004Objective.php");
        parent::create($a_upload);
        if (!$a_template) {
            $this->insertDefaultSequencingItem();
        }
    }

    public function insertDefaultSequencingItem()
    {
        $seq_item = new ilSCORM2004Item($this->getId());
        $seq_item->setDefaultXml(true);
        $seq_item->insert();
    }

    public function copy($a_target_slm)
    {
        $chap = new ilSCORM2004Chapter($a_target_slm);
        $chap->setTitle($this->getTitle());
        if ($this->getSLMId() != $a_target_slm->getId()) {
            $chap->setImportId("il__chap_" . $this->getId());
        }
        $chap->setSLMId($a_target_slm->getId());
        $chap->setType($this->getType());
        $chap->setDescription($this->getDescription());
        $chap->create(true);
        $a_copied_nodes[$this->getId()] = $chap->getId();
        
        // copy meta data
        include_once("Services/MetaData/classes/class.ilMD.php");
        $md = new ilMD($this->getSLMId(), $this->getId(), $this->getType());
        $new_md = $md->cloneMD($a_target_slm->getId(), $chap->getId(), $this->getType());
        
        return $chap;
    }

    public function exportXML(&$a_xml_writer, $a_inst, &$expLog)
    {
        // @todo
    }


    public function exportXMLMetaData(&$a_xml_writer)
    {
        include_once("Services/MetaData/classes/class.ilMD2XML.php");
        $md2xml = new ilMD2XML($this->getSLMId(), $this->getId(), $this->getType());
        $md2xml->setExportMode(true);
        $md2xml->startExport();
        $a_xml_writer->appendXML($md2xml->getXML());
    }
}