/**
* 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;
}