/**
* delete object and all related data
*
* this method has been tested on may 9th 2004
* data directory, meta data, file based lm data and bib items
* have been deleted correctly as desired
*
* @access public
* @return boolean true if all object data were removed; false if only a references were removed
*/
function delete()
{
global $ilDB;
// always call parent delete function first!!
if (!parent::delete()) {
return false;
}
// delete meta data of content object
/*
$nested = new ilNestedSetXML();
$nested->init($this->getId(), $this->getType());
$nested->deleteAllDBData();
*/
// Delete meta data
$this->deleteMetaData();
// delete bibliographical items of object
include_once "./Services/Xml/classes/class.ilNestedSetXML.php";
$nested = new ilNestedSetXML();
$nested->init($this->getId(), "bib");
$nested->deleteAllDBData();
// delete file_based_lm record
$ilDB->manipulate("DELETE FROM file_based_lm WHERE id = " . $ilDB->quote($this->getID(), "integer"));
// delete data directory
ilUtil::delDir($this->getDataDirectory());
return true;
}
/**
* delete learning module and all related data
*
* this method has been tested on may 9th 2004
* meta data, content object data, data directory, bib items
* learning module tree and pages have been deleted correctly as desired
*
* @access public
* @return boolean true if all object data were removed; false if only a references were removed
*/
function delete()
{
global $ilDB;
global $ilBench;
// always call parent delete function first!!
if (!parent::delete()) {
return false;
}
// delete lm object data
include_once "./Modules/LearningModule/classes/class.ilLMObject.php";
ilLMObject::_deleteAllObjectData($this);
// delete meta data of content object
$this->deleteMetaData();
// delete bibitem data
$nested = new ilNestedSetXML();
$nested->init($this->getId(), "bib");
$nested->deleteAllDBData();
// delete learning module tree
$this->lm_tree->removeTree($this->lm_tree->getTreeId());
// delete data directory
ilUtil::delDir($this->getDataDirectory());
// delete content object record
$q = "DELETE FROM content_object WHERE id = " . $ilDB->quote($this->getId(), "integer");
$ilDB->manipulate($q);
// delete lm menu entries
$q = "DELETE FROM lm_menu WHERE lm_id = " . $ilDB->quote($this->getId(), "integer");
$ilDB->manipulate($q);
// remove auto glossary entries
$ilDB->manipulate("DELETE FROM lm_glossaries WHERE " . " lm_id = " . $ilDB->quote($this->getId(), "integer"));
return true;
}
/**
* handler for end of element
*
* @param resource $a_xml_parser xml parser
* @param string $a_name element name
*/
function handlerEndTag($a_xml_parser, $a_name)
{
// call meta data handler
if ($this->in_meta_data && $this->processMeta()) {
// cache beginning of meta data within media object tags
// (we need to know the id, after that we send the cached data
// to the meta xml handler)
if ($this->in_media_object && $this->media_meta_start) {
$this->media_meta_cache[] = array("type" => "handlerEndTag", "par1" => $a_name);
} else {
parent::handlerEndTag($a_xml_parser, $a_name);
}
}
//echo "<b>END TAG: $a_name <br></b>"; flush();
// append content to page xml content
if (($this->in_page_object || $this->in_glossary_definition) && !$this->in_meta_data && !$this->in_media_object) {
$app_name = $a_name == "Definition" ? "PageObject" : $a_name;
$this->page_object->appendXMLContent($this->buildTag("end", $app_name));
}
// append content to bibitemxml content
if ($this->in_bib_item) {
if ($a_name == "BibItem") {
$this->bib_item->appendXMLContent("\n" . $this->buildTag("end", $a_name));
} else {
$this->bib_item->appendXMLContent($this->buildTag("end", $a_name));
}
}
switch ($a_name) {
case "StructureObject":
//unset($this->meta_data);
unset($this->structure_objects[count($this->structure_objects) - 1]);
break;
case "PageObject":
$this->in_page_object = false;
if ($this->coType != "tst" and $this->coType != "qpl") {
if (!$this->lm_page_object->isAlias()) {
//$this->page_object->createFromXML();
$this->page_object->updateFromXML();
$this->pg_mapping[$this->lm_page_object->getImportId()] = $this->lm_page_object->getId();
// collect pages with internal links
if ($this->page_object->containsIntLink()) {
$this->pages_to_parse["lm:" . $this->page_object->getId()] = "lm:" . $this->page_object->getId();
}
// collect pages with mobs or files
if ($this->page_object->needsImportParsing()) {
$this->pages_to_parse["lm:" . $this->page_object->getId()] = "lm:" . $this->page_object->getId();
}
// collect pages with questions
if ($this->page_object->getContainsQuestion()) {
$this->pages_to_parse["lm:" . $this->page_object->getId()] = "lm:" . $this->page_object->getId();
}
}
} else {
$xml = $this->page_object->getXMLContent();
if ($this->cur_qid != "") {
$ids = $this->qst_mapping[$this->cur_qid];
if ($ids["pool"] > 0) {
// question pool question
$page = new ilPageObject("qpl", $ids["pool"]);
$xmlcontent = str_replace($this->cur_qid, "il__qst_" . $ids["pool"], $xml);
$page->setXMLContent($xmlcontent);
$page->saveMobUsage($xmlcontent);
$page->updateFromXML();
unset($page);
}
if ($ids["test"] > 0) {
// test question
$page = new ilPageObject("qpl", $ids["test"]);
$xmlcontent = str_replace($this->cur_qid, "il__qst_" . $ids["test"], $xml);
$page->setXMLContent($xmlcontent);
$page->saveMobUsage($xmlcontent);
$page->updateFromXML();
unset($page);
}
}
}
// if we are within a structure object: put page in tree
$cnt = count($this->structure_objects);
if ($cnt > 0) {
$parent_id = $this->structure_objects[$cnt - 1]->getId();
if ($this->lm_page_object->isAlias()) {
$this->pg_into_tree[$parent_id][] = array("type" => "pg_alias", "id" => $this->lm_page_object->getOriginId());
} else {
$this->pg_into_tree[$parent_id][] = array("type" => "pg", "id" => $this->lm_page_object->getId());
}
}
unset($this->page_object);
unset($this->lm_page_object);
unset($this->container[count($this->container) - 1]);
break;
case "MediaObject":
$this->in_media_object = false;
//echo "ENDMediaObject:ImportId:".$this->media_object->getImportId()."<br>";
// create media object on first occurence of an Id
if (empty($this->mob_mapping[$this->media_object->getImportId()])) {
//echo "No mapping found --creating media object:title:".$this->media_object->getTitle().":<br>";
// create media object
// media items are saves for mobs outside of
// pages only
$this->media_object->create(true, false);
//echo "<br>creating mob ".$this->media_object->getId().":".$this->media_object->getTitle().":";
// collect mobs with internal links
if ($this->media_object->containsIntLink()) {
//echo "got int link :".$this->media_object->getId().":<br>";
$this->mobs_with_int_links[] = $this->media_object->getId();
}
$this->mob_mapping[$this->media_object->getImportId()] = $this->media_object->getId();
//echo "create:import_id:".$this->media_object->getImportId().":ID:".$this->mob_mapping[$this->media_object->getImportId()]."<br>";
} else {
//echo "Mapping found<br>";
// get the id from mapping
$this->media_object->setId($this->mob_mapping[$this->media_object->getImportId()]);
// update "real" (no alias) media object
// (note: we overwrite any data from the media object
// created by an MediaAlias, only the data of the real
// object is stored in db separately; data of the
// MediaAliases are within the page XML
if (!$this->media_object->isAlias()) {
// now the media items are saved within the db
$this->media_object->update();
//echo "<br>update media object :".$this->media_object->getId().":";
// collect mobs with internal links
if ($this->media_object->containsIntLink()) {
//echo "got int link :".$this->media_object->getId().":<br>";
$this->mobs_with_int_links[] = $this->media_object->getId();
}
}
}
// append media alias to page, if we are in a page
if ($this->in_page_object || $this->in_glossary_definition) {
$this->page_object->appendXMLContent($this->media_object->getXML(IL_MODE_ALIAS));
//echo "Appending:".htmlentities($this->media_object->getXML(IL_MODE_ALIAS))."<br>";
}
break;
case "MediaItem":
case "MediaAliasItem":
$this->in_media_item = false;
$this->media_object->addMediaItem($this->media_item);
//echo "adding media item -".$this->media_item->getId()."-".$this->media_item->getLocation()."- to object -".$this->media_object->getId()."-";
break;
case "MapArea":
$this->in_map_area = false;
$this->media_item->addMapArea($this->map_area);
break;
case "Properties":
$this->in_properties = false;
if ($this->content_object->getType() == "lm" || $this->content_object->getType() == "dbk") {
$this->content_object->update();
}
break;
case "MetaData":
$this->in_meta_data = false;
if (strtolower(get_class($this->current_object)) == "illmpageobject" && !$this->in_media_object) {
// Metadaten eines PageObjects sichern in NestedSet
if (is_object($this->lm_page_object)) {
// update title/description of page object
$this->current_object->MDUpdateListener('General');
ilLMObject::_writeImportId($this->current_object->getId(), $this->current_object->getImportId());
}
} else {
if ((strtolower(get_class($this->current_object)) == "ilobjquestionpool" || strtolower(get_class($this->current_object)) == "ilobjtest") && !$this->in_media_object) {
if ($this->metadata_parsing_disabled) {
$this->enableMDParsing(true);
} else {
if ($this->in_page_object) {
$this->page_object->MDUpdateListener('General');
ilLMObject::_writeImportId($this->page_object->getId(), $this->page_object->getImportId());
} else {
$this->current_object->MDUpdateListener('General');
ilLMObject::_writeImportId($this->current_object->getId(), $this->current_object->getImportId());
}
}
} else {
if (strtolower(get_class($this->current_object)) == "ilstructureobject") {
// save structure object at the end of its meta block
// determine parent
$cnt = count($this->structure_objects);
if ($cnt > 1) {
$parent_id = $this->structure_objects[$cnt - 2]->getId();
} else {
$parent_id = $this->lm_tree->getRootId();
}
// create structure object and put it in tree
//$this->current_object->create(true); // now on top
$this->st_into_tree[] = array("id" => $this->current_object->getId(), "parent" => $parent_id);
// update title/description of structure object
$this->current_object->MDUpdateListener('General');
ilLMObject::_writeImportId($this->current_object->getId(), $this->current_object->getImportId());
} else {
if (strtolower(get_class($this->current_object)) == "ilobjdlbook" || strtolower(get_class($this->current_object)) == "ilobjlearningmodule" || strtolower(get_class($this->current_object)) == "ilobjcontentobject" || strtolower(get_class($this->current_object)) == "ilobjglossary" && $this->in_glossary) {
// todo: saving of md? getting title/descr and
// set it for current object
} else {
if (strtolower(get_class($this->current_object)) == "ilglossarydefinition" && !$this->in_media_object) {
// now on top
//$this->glossary_definition->create();
$this->page_object->setId($this->glossary_definition->getId());
$this->page_object->updateFromXML();
// todo: saving of md? getting title/descr and
// set it for current object
}
}
}
}
}
if (strtolower(get_class($this->current_object)) == "ilobjlearningmodule" || strtolower(get_class($this->current_object)) == "ilobjdlbook" || strtolower(get_class($this->current_object)) == "ilobjglossary") {
if (strtolower(get_class($this->current_object)) == "ilobjglossary" && $this->content_object->getType() != "glo") {
//echo "<br><b>getting2: ".$this->content_object->getTitle()."</b>";
$this->current_object->setTitle($this->content_object->getTitle() . " - " . $this->lng->txt("glossary"));
}
$this->current_object->MDUpdateListener('General');
/*
if (!$this->in_media_object && $this->processMeta())
{
$this->current_object->update();
}
*/
}
if ($this->in_media_object) {
//echo "<br>call media object update listener";
$this->media_object->MDUpdateListener('General');
}
if ($this->in_glossary_definition) {
$this->glossary_definition->MDUpdateListener('General');
}
break;
case "Meta-Metadata":
$this->in_meta_meta_data = false;
break;
case "FileItem":
$this->in_file_item = false;
// only update new file items
if ($this->file_item->getImportId($a_attribs["Entry"] != "")) {
$this->file_item->update();
}
break;
case "Bibliography":
$this->in_bib_item = false;
$nested = new ilNestedSetXML();
$nested->import($this->bib_item->getXMLContent(), $this->content_object->getId(), "bib");
break;
case "Table":
unset($this->container[count($this->container) - 1]);
break;
case "Glossary":
$this->in_glossary = false;
break;
case "GlossaryTerm":
$this->glossary_term->setTerm(trim($this->chr_data));
$this->glossary_term->create();
$iia = explode("_", $this->glossary_term->getImportId());
$this->glossary_term_map[(int) $iia[count($iia) - 1]] = $this->glossary_term->getId();
break;
case "Paragraph":
$this->inside_code = false;
break;
case "Definition":
$this->in_glossary_definition = false;
$this->page_object->updateFromXML();
$this->page_object->buildDom();
$this->glossary_definition->setShortText($this->page_object->getFirstParagraphText());
$this->glossary_definition->update();
//$this->pg_mapping[$this->lm_page_object->getImportId()]
// = $this->lm_page_object->getId();
if ($this->page_object->containsIntLink()) {
//echo "<br>Definition contains Int Link:".$this->page_object->getId();
$this->pages_to_parse["gdf:" . $this->page_object->getId()] = "gdf:" . $this->page_object->getId();
}
if ($this->page_object->needsImportParsing()) {
$this->pages_to_parse["gdf:" . $this->page_object->getId()] = "gdf:" . $this->page_object->getId();
}
break;
case "Format":
if ($this->in_media_item) {
$this->media_item->setFormat(trim($this->chr_data));
}
if ($this->in_file_item) {
$this->file_item->setFileType(trim($this->chr_data));
}
break;
case "Title":
if (!$this->in_media_object) {
$this->current_object->setTitle(trim($this->chr_data));
//$this->meta_data->setTitle(trim($this->chr_data));
} else {
$this->media_object->setTitle(trim($this->chr_data));
//$this->meta_data->setTitle(trim($this->chr_data));
}
break;
case "Language":
/*
if (is_object($this->meta_data))
{
$this->meta_data->setLanguage(trim($this->chr_data));
}*/
if (is_object($this->bib_item)) {
$this->bib_item->setLanguage(trim($this->chr_data));
}
break;
case "Description":
//$this->meta_data->setDescription(trim($this->chr_data));
break;
case "Caption":
if ($this->in_media_object) {
$this->media_item->setCaption(trim($this->chr_data));
}
break;
case "TextRepresentation":
if ($this->in_media_object) {
$this->media_item->setTextRepresentation(trim($this->chr_data));
}
break;
// Location
// Location
case "Location":
// TODO: adapt for files in "real" subdirectories
if ($this->in_media_item) {
$this->media_item->setLocationType($this->loc_type);
if ($this->loc_type == "Reference") {
$this->media_item->setLocation(str_replace("&", "&", trim($this->chr_data)));
} else {
$this->media_item->setLocation(trim($this->chr_data));
}
//echo "-".$this->media_item->getLocation()."-";
}
if ($this->in_file_item) {
// set file name from xml file
$this->file_item->setFileName(trim($this->chr_data));
// special handling for file names with special characters
// (e.g. ">")
if ($this->file_item->getType() == "file" && is_int(strpos($this->chr_data, "&")) && is_int(strpos($this->chr_data, ";"))) {
$imp_dir = $this->content_object->getImportDirectory();
$source_dir = $imp_dir . "/" . $this->subdir . "/objects/" . $this->file_item->getImportId();
// read "physical" file name from directory
if ($dir = opendir($source_dir)) {
while (false !== ($file = readdir($dir))) {
if ($file != "." && $file != "..") {
$this->file_item->setFileName($file);
}
}
closedir($dir);
}
}
// set file item title
$this->file_item->setTitle(trim($this->chr_data));
}
break;
}
$this->endElement($a_name);
$this->chr_data = "";
}
/**
* exports the digi-lib-object into a xml structure
*/
function export($a_deliver = true)
{
global $ilDB;
include_once "./Services/Xml/classes/class.ilNestedSetXML.php";
// ------------------------------------------------------
// anhand der ref_id die obj_id ermitteln.
// ------------------------------------------------------
$objRow["obj_id"] = ilOject::_lookupObjId();
$objRow["title"] = ilOject::_lookupTitle($objRow["obj_id"]);
$obj_id = $objRow["obj_id"];
$this->mob_ids = array();
// ------------------------------------------------------
// start xml-String
// ------------------------------------------------------
$xml = "<?xml version=\"1.0\"?>\n<!DOCTYPE ContentObject SYSTEM \"ilias_co.dtd\">\n<ContentObject Type=\"LibObject\">\n";
// ------------------------------------------------------
// get global meta-data
// ------------------------------------------------------
$nested = new ilNestedSetXML();
$xml .= $nested->export($obj_id, "dbk") . "\n";
// ------------------------------------------------------
// get all book-xml-data recursiv
// ------------------------------------------------------
$query = "SELECT *\n FROM lm_tree, lm_data\n WHERE lm_tree.lm_id = " . $ilDB->quote($obj_id, "integer") . "\n AND lm_tree.child = lm_data.obj_id\n AND ( lm_data.type = 'du' )\n AND lm_tree.depth = 1\n ORDER BY lm_tree.lft";
$result = $ilDB->query($query);
$treeData = $ilDB->fetchAssoc($result);
$xml .= $this->exportRekursiv($obj_id, 2, $treeData["lft"], $treeData["rgt"]);
// ------------------------------------------------------
// get or create export-directory
// ------------------------------------------------------
$this->createExportDirectory();
$export_dir = $this->getExportDirectory();
// ------------------------------------------------------
// get mediaobject-xml-data
// ------------------------------------------------------
$mob_ids = $this->mob_ids;
if (is_array($mob_ids) && count($mob_ids) > 0) {
reset($mob_ids);
while (list($key, $val) = each($mob_ids)) {
$xml .= "<MediaObject>";
$query = "SELECT * FROM media_item WHERE mob_id= " . $ilDB->quote($key, "integer") . " ";
//vd($query);
$first = true;
$result = $ilDB->query($query);
while (is_array($row = $ilDB->fetchRow($result))) {
if ($first) {
//vd($row[purpose]);
$nested = new ilNestedSetXML();
$metaxml = $nested->export($key, "mob");
$metaxml = preg_replace("/Entry=\"(.*?)\"/", "Entry=\"il__mob_" . $key . "\"", $metaxml);
$metaxml2 = "<Technical>";
$metaxml2 .= "<Format>" . $row["format"] . "</Format>";
$metaxml2 .= "<Size>14559</Size>";
$metaxml2 .= "<Location Type=\"" . $row["location_type"] . "\">" . $row["location"] . "</Location>";
$metaxml2 .= "</Technical>";
$metaxml = str_replace("</MetaData>", $metaxml2 . "</MetaData>", $metaxml);
$xml .= $metaxml;
$first = false;
}
$xml .= "<MediaItem Purpose=\"" . $row["purpose"] . "\">";
$xml .= "<Location Type=\"" . $row["location_type"] . "\">" . $row["location"] . "</Location>";
$xml .= "<Format>" . $row["format"] . "</Format>";
$xml .= "<Layout Width=\"" . $row["width"] . "\" Height=\"" . $row["height"] . "\"/>";
$xml .= "</MediaItem>";
}
$xml .= "</MediaObject>";
}
}
// ------------------------------------------------------
// get bib-xml-data
// ------------------------------------------------------
$nested = new ilNestedSetXML();
$bib = $nested->export($obj_id, "bib");
$xml .= $bib . "\n";
// ------------------------------------------------------
// xml-ending
// ------------------------------------------------------
$xml .= "</ContentObject>";
// ------------------------------------------------------
// filename and directory-creation
// ------------------------------------------------------
$fileName = $objRow["title"];
$fileName = str_replace(" ", "_", $fileName);
if (!file_exists($export_dir . "/" . $fileName)) {
@mkdir($export_dir . "/" . $fileName);
@chmod($export_dir . "/" . $fileName, 0755);
}
if (!file_exists($export_dir . "/" . $fileName . "/objects")) {
@mkdir($export_dir . "/" . $fileName . "/objects");
@chmod($export_dir . "/" . $fileName . "/objects", 0755);
}
// ------------------------------------------------------
// copy mob-files
// ------------------------------------------------------
$mob_ids = $this->mob_ids;
if (is_array($mob_ids) && count($mob_ids) > 0) {
reset($mob_ids);
while (list($key, $val) = each($mob_ids)) {
if (!file_exists($export_dir . "/" . $fileName . "/objects/mm" . $key)) {
@mkdir($export_dir . "/" . $fileName . "/objects/mm" . $key);
@chmod($export_dir . "/" . $fileName . "/objects/mm" . $key, 0755);
}
$mobdir = "./data/mobs/mm_" . $key;
ilUtil::rCopy($mobdir, $export_dir . "/" . $fileName . "/objects/mm" . $key);
}
}
// ------------------------------------------------------
// save xml-file
// ------------------------------------------------------
$fp = fopen($export_dir . "/" . $fileName . "/" . $fileName . ".xml", "wb");
fwrite($fp, $xml);
fclose($fp);
// ------------------------------------------------------
// zip all files
// ------------------------------------------------------
ilUtil::zip($export_dir . "/" . $fileName, $export_dir . "/" . $fileName . ".zip");
// ------------------------------------------------------
// deliver files
// ------------------------------------------------------
if ($a_deliver) {
ilUtil::deliverFile($export_dir . "/" . $fileName . ".zip", $fileName);
} else {
return $export_dir . "/" . $fileName . ".zip";
}
/*
header("Expires: Mon, 1 Jan 1990 00:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-type: application/octet-stream");
if (stristr(" ".$GLOBALS["HTTP_SERVER_VARS"]["HTTP_USER_AGENT"],"MSIE") )
{
header ("Content-Disposition: attachment; filename=" . $fileName.".zip");
}
else
{
header ("Content-Disposition: inline; filename=".$fileName.".zip" );
}
header ("Content-length:".(string)( filesize($export_dir."/".$fileName.".zip")) );
readfile( $export_dir."/".$fileName.".zip" );
*/
}
/**
* get a xml string that contains all Bibliography elements, that
* are referenced by any bibitem alias in the page
*/
function getBibliographyXML()
{
global $ilias, $ilDB;
// todo: access to $_GET and $_POST variables is not
// allowed in non GUI classes!
//
// access to db table object_reference is not allowed here!
$r = $ilias->db->query("SELECT * FROM object_reference WHERE ref_id=" . $ilDB->quote($_GET["ref_id"], 'integer'));
$row = $r->fetchRow(DB_FETCHMODE_ASSOC);
include_once "./Services/Xml/classes/class.ilNestedSetXML.php";
$nested = new ilNestedSetXML();
$bibs_xml = $nested->export($row["obj_id"], "bib");
return $bibs_xml;
}
