class.ilSCORM2004Chapter.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2008 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

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

class ilSCORM2004Chapter extends ilSCORM2004Node
{
        var $tree;

        function ilSCORM2004Chapter($a_slm_object, $a_id = 0)
        {
                parent::ilSCORM2004Node($a_slm_object, $a_id);
                $this->setType("chap");
        }

        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_tree, $a_delete_meta_data);
                                }
                                if ($obj->getType() == "sco")
                                {
                                        $obj->delete($a_delete_meta_data);
                                }
                        }
                        unset($obj);
                }
                parent::delete($a_delete_meta_data);
        }
        
        
        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;
        }

        function exportXML(&$a_xml_writer, $a_inst, &$expLog)
        {
// @todo
/*
                global $ilBench;

                $expLog->write(date("[y-m-d H:i:s] ")."Structure Object ".$this->getId());
                $attrs = array();
                $a_xml_writer->xmlStartTag("StructureObject", $attrs);

                // MetaData
                $ilBench->start("ContentObjectExport", "exportStructureObject_exportMeta");
                $this->exportXMLMetaData($a_xml_writer);
                $ilBench->stop("ContentObjectExport", "exportStructureObject_exportMeta");

                // StructureObjects
                $ilBench->start("ContentObjectExport", "exportStructureObject_exportPageObjects");
                $this->exportXMLPageObjects($a_xml_writer, $a_inst);
                $ilBench->stop("ContentObjectExport", "exportStructureObject_exportPageObjects");

                // PageObjects
                $this->exportXMLStructureObjects($a_xml_writer, $a_inst, $expLog);

                // Layout
                // not implemented

                $a_xml_writer->xmlEndTag("StructureObject");
*/
        }


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

// @todo Check this
/*
        function modifyExportIdentifier($a_tag, $a_param, $a_value)
        {

                if ($a_tag == "Identifier" && $a_param == "Entry")
                {
                        $a_value = "il_".IL_INST_ID."_st_".$this->getId();
                        //$a_value = ilUtil::insertInstIntoID($a_value);
                }

                return $a_value;
        }
*/

// @todo Check this
        function _getPresentationTitle($a_st_id, $a_include_numbers = false)
        {
                global $ilDB;
/*
                // get chapter data
                $query = "SELECT * FROM lm_data WHERE obj_id = ".$ilDB->quote($a_st_id);
                $st_set = $ilDB->query($query);
                $st_rec = $st_set->fetchRow(DB_FETCHMODE_ASSOC);

                $tree = new ilTree($st_rec["lm_id"]);
                $tree->setTableNames('lm_tree','lm_data');
                $tree->setTreeTablePK("lm_id");

                if ($a_include_numbers)
                {
                        if ($tree->isInTree($st_rec["obj_id"]))
                        {
                                // get chapter tree node
                                $query = "SELECT * FROM lm_tree WHERE child = ".
                                        $ilDB->quote($a_st_id)." AND lm_id = ".
                                        $ilDB->quote($st_rec["lm_id"]);
                                $tree_set = $ilDB->query($query);
                                $tree_node = $tree_set->fetchRow(DB_FETCHMODE_ASSOC);
                                $depth = $tree_node["depth"];

                                $nr = $tree->getChildSequenceNumber($tree_node, "st")." ";
                                for ($i = $depth - 1; $i > 1; $i --)
                                {
                                        // get next parent tree node
                                        $query = "SELECT * FROM lm_tree WHERE child = ".
                                                $ilDB->quote($tree_node["parent"])." AND lm_id = ".
                                                $ilDB->quote($st_rec["lm_id"]);
                                        $tree_set = $ilDB->query($query);
                                        $tree_node = $tree_set->fetchRow(DB_FETCHMODE_ASSOC);
                                        $seq = $tree->getChildSequenceNumber($tree_node, "st");

                                        $nr = $seq.".".$nr;
                                }
                        }
                }

                return $nr.$st_rec["title"];
*/
        }



        function exportXMLPageObjects(&$a_xml_writer, $a_inst = 0)
        {
// @todo Check this
/*
                include_once './Modules/LearningModule/classes/class.ilLMPageObject.php';

                global $ilBench;

                $this->tree = new ilTree($this->getLmId());
                $this->tree->setTableNames('lm_tree', 'lm_data');
                $this->tree->setTreeTablePK("lm_id");

                $childs = $this->tree->getChilds($this->getId());
                foreach ($childs as $child)
                {
                        if($child["type"] != "pg")
                        {
                                continue;
                        }

                        // export xml to writer object
                        $ilBench->start("ContentObjectExport", "exportStructureObject_exportPageObjectAlias");
                        //$ilBench->start("ContentObjectExport", "exportStructureObject_getLMPageObject");
                        //$page_obj = new ilLMPageObject($this->getContentObject(), $child["obj_id"]);
                        //$ilBench->stop("ContentObjectExport", "exportStructureObject_getLMPageObject");
                        ilLMPageObject::_exportXMLAlias($a_xml_writer, $child["obj_id"], $a_inst);
                        //$page_obj->exportXML($a_xml_writer, "alias", $a_inst);
                        //unset($page_obj);
                        $ilBench->stop("ContentObjectExport", "exportStructureObject_exportPageObjectAlias");
                }
*/
        }


        function exportXMLStructureObjects(&$a_xml_writer, $a_inst, &$expLog)
        {
// @todo Check this
/*
                $this->tree = new ilTree($this->getLmId());
                $this->tree->setTableNames('lm_tree', 'lm_data');
                $this->tree->setTreeTablePK("lm_id");

                $childs = $this->tree->getChilds($this->getId());
                foreach ($childs as $child)
                {
                        if($child["type"] != "st")
                        {
                                continue;
                        }

                        // export xml to writer object
                        $structure_obj = new ilStructureObject($this->getContentObject(),
                                $child["obj_id"]);
                        $structure_obj->exportXML($a_xml_writer, $a_inst, $expLog);
                        unset($structure_obj);
                }
*/
        }

// @todo Check this
/*
        function exportFO(&$a_xml_writer)
        {
                global $ilBench;

                //$expLog->write(date("[y-m-d H:i:s] ")."Structure Object ".$this->getId());

                // fo:block (complete)
                $attrs = array();
                $attrs["font-family"] = "Times";
                $attrs["font-size"] = "14pt";
                $a_xml_writer->xmlElement("fo:block", $attrs, $this->getTitle());

                // page objects
                //$ilBench->start("ContentObjectExport", "exportStructureObject_exportPageObjects");
                $this->exportFOPageObjects($a_xml_writer);
                //$ilBench->stop("ContentObjectExport", "exportStructureObject_exportPageObjects");

                // structure objects
                //$this->exportFOStructureObjects($a_xml_writer);

        }
*/

        function exportFOPageObjects(&$a_xml_writer)
        {
// @todo Check this
/*
                global $ilBench;

                $this->tree = new ilTree($this->getLmId());
                $this->tree->setTableNames('lm_tree', 'lm_data');
                $this->tree->setTreeTablePK("lm_id");

                $childs = $this->tree->getChilds($this->getId());
                foreach ($childs as $child)
                {
                        if($child["type"] != "pg")
                        {
                                continue;
                        }

                        // export xml to writer object
                        //$ilBench->start("ContentObjectExport", "exportStructureObject_exportPageObjectAlias");

                        $page_obj = new ilLMPageObject($this->getContentObject(), $child["obj_id"]);
                        $page_obj->exportFO($a_xml_writer);

                        //$ilBench->stop("ContentObjectExport", "exportStructureObject_exportPageObjectAlias");
                }
*/
        }

}
?>