class.ilObjSAHSLearningModule.php

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<?php

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

require_once "./Services/Object/classes/class.ilObject.php";
require_once "./Modules/ScormAicc/classes/class.ilObjSCORMValidator.php";
//require_once "Services/MetaData/classes/class.ilMDLanguageItem.php";

class ilObjSAHSLearningModule extends ilObject
{
        var $validator;
//      var $meta_data;

        function ilObjSAHSLearningModule($a_id = 0, $a_call_by_reference = true)
        {
                $this->type = "sahs";
                parent::ilObject($a_id,$a_call_by_reference);
        }

        function create($upload=false)
        {
                global $ilDB;

                parent::create();
                if(!$upload)
                $this->createMetaData();

                $this->createDataDirectory();

                $ilDB->manipulateF('
                        INSERT INTO sahs_lm (id, c_online, api_adapter, c_type, editable, seq_exp_mode,localization) 
                        VALUES (%s,%s,%s,%s,%s,%s,%s)', 
                        array('integer', 'text', 'text', 'text', 'integer','integer','text'), 
                        array($this->getId(),'n','API', $this->getSubType(),(int)$this->getEditable(),
                                (int)$this->getSequencingExpertMode(), $this->getLocalization()
                                ));
        }

        function read()
        {
                global $ilDB;
                
                parent::read();

                $lm_set = $ilDB->queryF('SELECT * FROM sahs_lm WHERE id = %s', 
                        array('integer'),array($this->getId()));        
                
                while($lm_rec = $ilDB->fetchAssoc($lm_set))
                {
                        $this->setOnline(ilUtil::yn2tf($lm_rec["c_online"]));
                        $this->setAutoReviewChar($lm_rec["auto_review"]);
                        $this->setAPIAdapterName($lm_rec["api_adapter"]);
                        $this->setDefaultLessonMode($lm_rec["default_lesson_mode"]);
                        $this->setAPIFunctionsPrefix($lm_rec["api_func_prefix"]);
                        $this->setCreditMode($lm_rec["credit"]);
                        $this->setSubType($lm_rec["c_type"]);
                        $this->setEditable($lm_rec["editable"]);
                        $this->setStyleSheetId($lm_rec["stylesheet"]);
                        $this->setMaxAttempt($lm_rec["max_attempt"]);
                        $this->setModuleVersion($lm_rec["module_version"]);
                        $this->setAssignedGlossary($lm_rec["glossary"]);
                        $this->setTries($lm_rec["question_tries"]);
                        $this->setLocalization($lm_rec["localization"]);
                        $this->setSession(ilUtil::yn2tf($lm_rec["unlimited_session"]));
                        $this->setNoMenu(ilUtil::yn2tf($lm_rec["no_menu"]));
                        $this->setHideNavig(ilUtil::yn2tf($lm_rec["hide_navig"]));
                        $this->setFourth_edition(ilUtil::yn2tf($lm_rec["fourth_edition"]));
                        $this->setSequencing(ilUtil::yn2tf($lm_rec["sequencing"]));
                        $this->setInteractions(ilUtil::yn2tf($lm_rec["interactions"]));
                        $this->setObjectives(ilUtil::yn2tf($lm_rec["objectives"]));
                        $this->setComments(ilUtil::yn2tf($lm_rec["comments"]));
                        $this->setTime_from_lms(ilUtil::yn2tf($lm_rec["time_from_lms"]));
                        $this->setDebug(ilUtil::yn2tf($lm_rec["debug"]));
                        $this->setDebugPw($lm_rec["debugpw"]);
                        $this->setSequencingExpertMode($lm_rec["seq_exp_mode"]);
                        $this->setOpenMode($lm_rec["open_mode"]);
                        $this->setWidth($lm_rec["width"]);
                        $this->setHeight($lm_rec["height"]);
                        $this->setAutoContinue(ilUtil::yn2tf($lm_rec["auto_continue"]));
                        $this->setAuto_last_visited(ilUtil::yn2tf($lm_rec["auto_last_visited"]));
                        $this->setCheck_values(ilUtil::yn2tf($lm_rec["check_values"]));
                        $this->setOfflineMode(ilUtil::yn2tf($lm_rec["offline_mode"]));
                        $this->setAutoSuspend(ilUtil::yn2tf($lm_rec["auto_suspend"]));
                        $this->setIe_compatibility(ilUtil::yn2tf($lm_rec["ie_compatibility"]));
                        $this->setIe_force_render(ilUtil::yn2tf($lm_rec["ie_force_render"]));
                        
                        include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                        if (ilObject::_lookupType($this->getStyleSheetId()) != "sty")
                        {
                                $this->setStyleSheetId(0);
                        }
                }
        }

        function _lookupOnline($a_id)
        {
                global $ilDB;
                
                $lm_set = $ilDB->queryF('SELECT c_online FROM sahs_lm WHERE id = %s', 
                array('integer'), array($a_id));
                $lm_rec = $ilDB->fetchAssoc($lm_set);
                
                return ilUtil::yn2tf($lm_rec["c_online"]);
        }
        
        function getAffectiveLocalization($a_id)
        {
                global $ilDB, $lng;
                
                $lm_set = $ilDB->queryF('SELECT localization FROM sahs_lm WHERE id = %s', 
                        array('integer'), array($a_id));
                $lm_rec = $ilDB->fetchAssoc($lm_set);
                $inst_lang = $lng->getInstalledLanguages();
                if ($lm_rec["localization"] != "" && in_array($lm_rec["localization"], $inst_lang))
                {
                        return $lm_rec["localization"];
                }
                return $lng->getLangKey();
        }

        function _lookupSubType($a_obj_id)
        {
                global $ilDB;

                $obj_set = $ilDB->queryF('SELECT c_type FROM sahs_lm WHERE id = %s', 
                array('integer'), array($a_obj_id));
                $obj_rec = $ilDB->fetchAssoc($obj_set);
                
                return $obj_rec["c_type"];
        }

        function setEditable($a_editable)
        {
                $this->editable = $a_editable;
        }

        function getEditable()
        {
                return $this->editable;
        }


        function setTries($a_tries)
        {
                $this->tries = $a_tries;
        }

        function getTries()
        {
                return $this->tries;
        }
        
        function setLocalization($a_val)
        {
                $this->localization = $a_val;
        }
        
        function getLocalization()
        {
                return $this->localization;
        }

        static function _getTries($a_id)
        {
                global $ilDB;

                $lm_set = $ilDB->queryF('SELECT question_tries FROM sahs_lm WHERE id = %s', 
                array('integer'), array($a_id));
                $lm_rec = $ilDB->fetchAssoc($lm_set);
                        
                return $lm_rec['question_tries'];
        }
        function getDiskUsage()
        {
            require_once("./Modules/ScormAicc/classes/class.ilObjSAHSLearningModuleAccess.php");
                return ilObjSAHSLearningModuleAccess::_lookupDiskUsage($this->id);
        }


        function createDataDirectory()
        {
                $lm_data_dir = ilUtil::getWebspaceDir()."/lm_data";
                ilUtil::makeDir($lm_data_dir);
                ilUtil::makeDir($this->getDataDirectory());
        }

        function getDataDirectory($mode = "filesystem")
        {
                $lm_data_dir = ilUtil::getWebspaceDir($mode)."/lm_data";
                $lm_dir = $lm_data_dir."/lm_".$this->getId();

                return $lm_dir;
        }

        function getAPIAdapterName()
        {
                return $this->api_adapter;
        }

        function setAPIAdapterName($a_api)
        {
                $this->api_adapter = $a_api;
        }

        function getAPIFunctionsPrefix()
        {
                return $this->api_func_prefix;
        }

        function setAPIFunctionsPrefix($a_prefix)
        {
                $this->api_func_prefix = $a_prefix;
        }

        function getCreditMode()
        {
                return $this->credit_mode;
        }

        function setCreditMode($a_credit_mode)
        {
                $this->credit_mode = $a_credit_mode;
        }

        function setDefaultLessonMode($a_lesson_mode)
        {
                $this->lesson_mode = $a_lesson_mode;
        }

        function getDefaultLessonMode()
        {
                return $this->lesson_mode;
        }
        function getStyleSheetId()
        {
                return $this->style_id;
        }

        function setStyleSheetId($a_style_id)
        {
                $this->style_id = $a_style_id;
        }


        function setAutoReview($a_auto_review)
        {
                $this->auto_review = ilUtil::tf2yn($a_auto_review);
        }
        function getAutoReview()
        {
                return ilUtil::yn2tf($this->auto_review);
        }
        
        function setAutoReviewChar($a_auto_review)
        {
                $this->auto_review = $a_auto_review;
        }
        function getAutoReviewChar()
        {
                return $this->auto_review;
        }
        
        function getMaxAttempt()
        {
                return $this->max_attempt;
        }


        function setMaxAttempt($a_max_attempt)
        {
                $this->max_attempt = $a_max_attempt;
        }
        
        function getModuleVersion()
        {
                return $this->module_version;
        }

        function getAssignedGlossary()
        {
                return $this->assigned_glossary;
        }
        
        function setAssignedGlossary($a_assigned_glossary)
        {
                $this->assigned_glossary = $a_assigned_glossary;
        }
        function setModuleVersion($a_module_version)
        {
                $this->module_version = $a_module_version;
        }
        
        function getSession()
        {
                return $this->session;
        }
        
        function setSession($a_session)
        {
                $this->session = $a_session;
        }
        
        function getNoMenu()
        {
                return $this->no_menu;
        }
        
        function setNoMenu($a_no_menu)
        {
                $this->no_menu = $a_no_menu;
        }
        
        function getHideNavig()
        {
                return $this->hide_navig;
        }
        
        function setHideNavig($a_hide_navig)
        {
                $this->hide_navig = $a_hide_navig;
        }

        function getCacheDeactivated()
        {
                global $ilSetting;
                $lm_set = new ilSetting("lm");
                if ($lm_set->get("scormdebug_disable_cache") == "1") return true;
                return false;
        }

        function getSessionDeactivated()
        {
                global $ilSetting;
                $lm_set = new ilSetting("lm");
                if ($lm_set->get("scorm_without_session") == "1") return true;
                return false;
        }

        function getDebugActivated()
        {
                global $ilSetting;
                $lm_set = new ilSetting("lm");
                if ($lm_set->get("scormdebug_global_activate") == "1") return true;
                return false;
        }

        function getIe_compatibility()
        {
                return $this->ie_compatibility;
        }

        function setIe_compatibility($a_ie_compatibility)
        {
                $this->ie_compatibility = $a_ie_compatibility;
        }

        function getIe_force_render()
        {
                return $this->ie_force_render;
        }

        function setIe_force_render($a_ie_force_render)
        {
                $this->ie_force_render = $a_ie_force_render;
        }

        function getFourth_Edition()
        {
                return $this->fourth_edition;
        }

        function setFourth_edition($a_fourth_edition)
        {
                $this->fourth_edition = $a_fourth_edition;
        }

        function getSequencing()
        {
                return $this->sequencing;
        }

        function setSequencing($a_sequencing)
        {
                $this->sequencing = $a_sequencing;
        }

        function getInteractions()
        {
                return $this->interactions;
        }

        function setInteractions($a_interactions)
        {
                $this->interactions = $a_interactions;
        }

        function getObjectives()
        {
                return $this->objectives;
        }

        function setObjectives($a_objectives)
        {
                $this->objectives = $a_objectives;
        }

        function getComments()
        {
                return $this->comments;
        }

        function setComments($a_comments)
        {
                $this->comments = $a_comments;
        }

        function getTime_from_lms()
        {
                return $this->time_from_lms;
        }

        function setTime_from_lms($a_time_from_lms)
        {
                $this->time_from_lms = $a_time_from_lms;
        }

        function getCheck_values()
        {
                return $this->check_values;
        }

        function setCheck_values($a_check_values)
        {
                $this->check_values = $a_check_values;
        }

        function getOfflineMode()
        {
                return $this->offline_mode;
        }

        function setOfflineMode($a_offline_mode)
        {
                $this->offline_mode = $a_offline_mode;
        }

        
        function getDebug()
        {
                return $this->debug;
        }
        
        function setDebug($a_debug)
        {
                $this->debug = $a_debug;
        }
        
        function getDebugPw()
        {
                return $this->debug_pw;
        }
        
        function setDebugPw($a_debug_pw)
        {
                $this->debug_pw = $a_debug_pw;
        }
        
        function setAutoContinue($a_auto_continue)
        {
                $this->auto_continue = $a_auto_continue;
        }
        function getAutoContinue()
        {
                return $this->auto_continue;
        }

        function getAuto_last_visited()
        {
                return $this->auto_last_visited;
        }

        function setAuto_last_visited($a_auto_last_visited)
        {
                $this->auto_last_visited = $a_auto_last_visited;
        }

        
        function setSequencingExpertMode($a_val)
        {
                $this->seq_exp_mode = $a_val;
        }
        
        function getSequencingExpertMode()
        {
                return $this->seq_exp_mode;
        }

        function setAutoSuspend($a_auto_suspend)
        {
                $this->auto_suspend = $a_auto_suspend;
        }
        function getAutoSuspend()
        {
                return $this->auto_suspend;
        }

        
        function getOpenMode()
        {
                return $this->open_mode;
        }
        function setOpenMode($a_open_mode)
        {
                $this->open_mode = $a_open_mode;
        }
        
        function getWidth()
        {
                return $this->width;
        }
        function setWidth($a_width)
        {
                $this->width = $a_width;
        }

        function getHeight()
        {
                return $this->height;
        }
        function setHeight($a_height)
        {
                $this->height = $a_height;
        }


/*
        function updateMetaData()
        {
                $this->meta_data->update();
                if ($this->meta_data->section != "General")
                {
                        $meta = $this->meta_data->getElement("Title", "General");
                        $this->meta_data->setTitle($meta[0]["value"]);
                        $meta = $this->meta_data->getElement("Description", "General");
                        $this->meta_data->setDescription($meta[0]["value"]);
                }
                else
                {
                        $this->setTitle($this->meta_data->getTitle());
                        $this->setDescription($this->meta_data->getDescription());
                }
                parent::update();

        }
*/


        function update()
        {
                global $ilDB;

                $this->updateMetaData();
                parent::update();
                //Workaround for fields where Null is not allowed!
                $uStyleSheetId = $this->getStyleSheetId();
                if ($uStyleSheetId == null) $uStyleSheetId=0;
                $uOpenMode = $this->getOpenMode();
                if ($uOpenMode == null) $uOpenMode=0;
                $uWidth = $this->getWidth();
                if ($uWidth == null) $uWidth=950;
                $uHeight = $this->getHeight();
                if ($uHeight == null) $uHeight=650;
                
                $statement = $ilDB->manipulateF('
                        UPDATE sahs_lm  
                        SET c_online = %s, 
                                api_adapter = %s, 
                                api_func_prefix = %s,
                                auto_review = %s,
                                default_lesson_mode = %s,
                                c_type = %s,
                                stylesheet = %s, 
                                editable = %s, 
                                max_attempt = %s, 
                                module_version = %s, 
                                credit = %s, 
                                glossary = %s, 
                                question_tries = %s,
                                unlimited_session = %s,
                                no_menu = %s,
                                hide_navig = %s,
                                fourth_edition =%s,
                                sequencing = %s,
                                interactions = %s,
                                objectives = %s,
                                comments = %s,
                                time_from_lms = %s,
                                debug = %s,
                                localization = %s,
                                seq_exp_mode = %s,
                                debugpw = %s,
                                open_mode = %s,
                                width = %s,
                                height = %s,
                                auto_continue = %s,
                                auto_last_visited = %s,
                                check_values = %s,
                                offline_mode = %s,
                                auto_suspend = %s,
                                ie_compatibility = %s, 
                                ie_force_render = %s
                        WHERE id = %s', 
                array(  'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'integer',
                                'integer',
                                'integer',
                                'integer',
                                'text',
                                'integer',
                                'integer',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'integer',
                                'text',
                                'integer',
                                'integer',
                                'integer',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'text',
                                'integer'
                                ), 
                array(  ilUtil::tf2yn($this->getOnline()),
                                $this->getAPIAdapterName(),
                                $this->getAPIFunctionsPrefix(),
                                $this->getAutoReviewChar(),
                                $this->getDefaultLessonMode(),
                                $this->getSubType(),
                                $uStyleSheetId,
                                $this->getEditable(),
                                $this->getMaxAttempt(),
                                $this->getModuleVersion(),
                                $this->getCreditMode(),
                                $this->getAssignedGlossary(),
                                $this->getTries(),
                                ilUtil::tf2yn($this->getSession()),
                                ilUtil::tf2yn($this->getNoMenu()),
                                ilUtil::tf2yn($this->getHideNavig()),
                                ilUtil::tf2yn($this->getFourth_edition()),
                                ilUtil::tf2yn($this->getSequencing()),
                                ilUtil::tf2yn($this->getInteractions()),
                                ilUtil::tf2yn($this->getObjectives()),
                                ilUtil::tf2yn($this->getComments()),
                                ilUtil::tf2yn($this->getTime_from_lms()),
                                ilUtil::tf2yn($this->getDebug()),
                                $this->getLocalization(),
                                $this->getSequencingExpertMode(),
                                $this->getDebugPw(),
                                $uOpenMode,
                                $uWidth,
                                $uHeight,
                                ilUtil::tf2yn($this->getAutoContinue()),
                                ilUtil::tf2yn($this->getAuto_last_visited()),
                                ilUtil::tf2yn($this->getCheck_values()),
                                ilUtil::tf2yn($this->getOfflineMode()),
                                ilUtil::tf2yn($this->getAutoSuspend()),
                                ilUtil::tf2yn($this->getIe_compatibility()),
                                ilUtil::tf2yn($this->getIe_force_render()),
                                $this->getId())
                );

                return true;
        }
        
        static function getScormModulesForGlossary($a_glo_id)
        {
                global $ilDB;
        
                $set = $ilDB->query("SELECT DISTINCT id FROM sahs_lm WHERE ".
                        " glossary = ".$ilDB->quote($a_glo_id, "integer"));
                $sms = array();
                while ($rec  = $ilDB->fetchAssoc($set))
                {
                        if (ilObject::_hasUntrashedReference($rec["id"]))
                        {
                                $sms[] = $rec["id"];
                        }
                }
                return $sms;
        }

        static function lookupAssignedGlossary($a_slm_id)
        {
                global $ilDB;
        
                $set = $ilDB->query("SELECT DISTINCT glossary FROM sahs_lm WHERE ".
                        " id = ".$ilDB->quote($a_slm_id, "integer"));
                $rec  = $ilDB->fetchAssoc($set);
                $glo_id = $rec["glossary"];
                if (ilObject::_lookupType($glo_id) == "glo")
                {
                        return $glo_id;
                }
                return 0;
        }

        function setOnline($a_online)
        {
                $this->online = $a_online;
        }

        function getOnline()
        {
                return $this->online;
        }

        function setSubType($a_sub_type)
        {
                $this->sub_type = $a_sub_type;
        }

        function getSubType()
        {
                return $this->sub_type;
        }

        function delete()
        {
                global $ilDB, $ilLog;

                // always call parent delete function first!!
                if (!parent::delete())
                {
                        return false;
                }
 
                // delete meta data of scorm content object
/*
                $nested = new ilNestedSetXML();
                $nested->init($this->getId(), $this->getType());
                $nested->deleteAllDBData();
*/
                $this->deleteMetaData();

                // delete data directory
                ilUtil::delDir($this->getDataDirectory());

                // delete scorm learning module record
                $ilDB->manipulateF('DELETE FROM sahs_lm WHERE id = %s', 
                        array('integer'), array($this->getId()));
                
                $ilLog->write("SAHS Delete(SAHSLM), Subtype: ".$this->getSubType());
                
                if ($this->getSubType() == "scorm")
                {
                        // remove all scorm objects and scorm tree
                        include_once("./Modules/ScormAicc/classes/SCORM/class.ilSCORMTree.php");
                        include_once("./Modules/ScormAicc/classes/SCORM/class.ilSCORMObject.php");
                        $sc_tree = new ilSCORMTree($this->getId());
                        $r_id = $sc_tree->readRootId();
                        if ($r_id > 0)
                        {
                                $items = $sc_tree->getSubTree($sc_tree->getNodeData($r_id));
                                foreach($items as $item)
                                {
                                        $sc_object =& ilSCORMObject::_getInstance($item["obj_id"], $this->getId());
                                        if (is_object($sc_object))
                                        {
                                                $sc_object->delete();
                                        }
                                }
                                $sc_tree->removeTree($sc_tree->getTreeId());
                        }
                }

                if ($this->getSubType() != "scorm")
                {
                        // delete aicc data
                        $res = $ilDB->queryF('
                                SELECT aicc_object.obj_id FROM aicc_object, aicc_units
                                WHERE aicc_object.obj_id = aicc_units.obj_id
                                AND aicc_object.slm_id = %s',
                                array('integer'), array($this->getId()));
                        
                                while($row = $ilDB->fetchAssoc($res))
                                {
                                        $obj_id = $row['obj_id'];
                                        $ilDB->manipulateF('
                                        DELETE FROM aicc_units WHERE obj_id = %s', 
                                        array('integer'), array($obj_id));                              
                                }
                        
                        $res = $ilDB->queryF('
                                SELECT aicc_object.obj_id FROM aicc_object, aicc_course
                                WHERE aicc_object.obj_id = aicc_course.obj_id
                                AND aicc_object.slm_id = %s',
                                array('integer'), array($this->getId()));
                        
                                while($row = $ilDB->fetchAssoc($res))
                                {
                                        $obj_id = $row['obj_id'];
                                        $ilDB->manipulateF('
                                        DELETE FROM aicc_course WHERE obj_id = %s',
                                        array('integer'), array($obj_id));              
                                }

                        $ilDB->manipulateF('
                                DELETE FROM aicc_object WHERE slm_id = %s',
                                array('integer'), array($this->getId()));       
                }

                $q_log = "DELETE FROM scorm_tracking WHERE obj_id = ".$ilDB->quote($this->getId());
                $ilLog->write("SAHS Delete(SAHSLM): ".$q_log);

                $ilDB->manipulateF('DELETE FROM scorm_tracking WHERE obj_id = %s',
                        array('integer'), array($this->getId()));

                $q_log = "DELETE FROM sahs_user WHERE obj_id = ".$ilDB->quote($this->getId());
                $ilLog->write("SAHS Delete(SAHSLM): ".$q_log);

                $ilDB->manipulateF('DELETE FROM sahs_user WHERE obj_id = %s',
                        array('integer'), array($this->getId()));

                // always call parent delete function at the end!!
                return true;
        }

        function notify($a_event,$a_ref_id,$a_parent_non_rbac_id,$a_node_id,$a_params = 0)
        {
                global $tree;

                switch ($a_event)
                {
                        case "link":

                                //var_dump("<pre>",$a_params,"</pre>");
                                //echo "SCORMLearningModule ".$this->getRefId()." triggered by link event. Objects linked into target object ref_id: ".$a_ref_id;
                                //exit;
                                break;

                        case "cut":

                                //echo "SCORMLearningModule ".$this->getRefId()." triggered by cut event. Objects are removed from target object ref_id: ".$a_ref_id;
                                //exit;
                                break;

                        case "copy":

                                //var_dump("<pre>",$a_params,"</pre>");
                                //echo "SCORMLearningModule ".$this->getRefId()." triggered by copy event. Objects are copied into target object ref_id: ".$a_ref_id;
                                //exit;
                                break;

                        case "paste":

                                //echo "SCORMLearningModule ".$this->getRefId()." triggered by paste (cut) event. Objects are pasted into target object ref_id: ".$a_ref_id;
                                //exit;
                                break;

                        case "new":

                                //echo "SCORMLearningModule ".$this->getRefId()." triggered by paste (new) event. Objects are applied to target object ref_id: ".$a_ref_id;
                                //exit;
                                break;
                }

                // At the beginning of the recursive process it avoids second call of the notify function with the same parameter
                if ($a_node_id==$_GET["ref_id"])
                {
                        $parent_obj =& $this->ilias->obj_factory->getInstanceByRefId($a_node_id);
                        $parent_type = $parent_obj->getType();
                        if($parent_type == $this->getType())
                        {
                                $a_node_id = (int) $tree->getParentId($a_node_id);
                        }
                }

                parent::notify($a_event,$a_ref_id,$a_parent_non_rbac_id,$a_node_id,$a_params);
        }

        public function getPointsInPercent()
        {
                global $ilUser;
                if (strcmp($this->getSubType(), "scorm2004") == 0)
                {
                        $res = ilObjSCORM2004LearningModule::_getUniqueScaledScoreForUser($this->getId(), $ilUser->getId());
                        if (!is_null($res)) 
                        {
                                return $res * 100.0;
                        }
                        else
                        {
                                return $res;
                        }
                }
                else
                {
                        return null;
                }
        }
        
        public function getMaxPoints()
        {
                global $ilUser;
                
                if(strcmp($this->getSubType(), 'scorm2004') == 0)
                {
                        $res = ilObjSCORM2004LearningModule::_getMaxScoreForUser($this->getId(), $ilUser->getId());
                        return $res;
                }
                else
                {
                        return null;
                }
        }
        
        function populateByDirectoy($a_dir, $a_filename = "")
        {
                /*preg_match("/.*sahs_([0-9]*)\.zip/", $a_filename, $match);
                if (is_dir($a_dir."/sahs_".$match[1]))
                {
                        $a_dir = $a_dir."/sahs_".$match[1];
                }*/
                ilUtil::rCopy($a_dir, $this->getDataDirectory());
                ilUtil::renameExecutables($this->getDataDirectory());
        }

        
        public function cloneObject($a_target_id,$a_copy_id = 0)
        {
                global $ilDB, $ilUser, $ilias;

                $new_obj = parent::cloneObject($a_target_id,$a_copy_id);
                $this->cloneMetaData($new_obj);

                // copy properties
                $new_obj->setTitle($this->getTitle());
                $new_obj->setDescription($this->getDescription());
                $new_obj->setSubType($this->getSubType());
                $new_obj->setAPIAdapterName($this->getAPIAdapterName());
                $new_obj->setAPIFunctionsPrefix($this->getAPIFunctionsPrefix());
                $new_obj->setAutoReviewChar($this->getAutoReviewChar());
                $new_obj->setDefaultLessonMode($this->getDefaultLessonMode());
                $new_obj->setEditable($this->getEditable());
                $new_obj->setMaxAttempt($this->getMaxAttempt());
                $new_obj->setModuleVersion($this->getModuleVersion());
                $new_obj->setModuleVersion(1);
                $new_obj->setCreditMode($this->getCreditMode());
                $new_obj->setAssignedGlossary($this->getAssignedGlossary());
                $new_obj->setTries($this->getTries());
                $new_obj->setSession($this->getSession());
                $new_obj->setNoMenu($this->getNoMenu());
                $new_obj->setHideNavig($this->getHideNavig());
                $new_obj->setFourth_edition($this->getFourth_edition());
                $new_obj->setSequencing($this->getSequencing());
                $new_obj->setInteractions($this->getInteractions());
                $new_obj->setObjectives($this->getObjectives());
                $new_obj->setComments($this->getComments());
                $new_obj->setTime_from_lms($this->getTime_from_lms());
                $new_obj->setDebug($this->getDebug());
                $new_obj->setLocalization($this->getLocalization());
                $new_obj->setSequencingExpertMode($this->getSequencingExpertMode());
                $new_obj->setDebugPw($this->getDebugPw());
                $new_obj->setOpenMode($this->getOpenMode());
                $new_obj->setWidth($this->getWidth());
                $new_obj->setHeight($this->getHeight());
                $new_obj->setAutoContinue($this->getAutoContinue());
                $new_obj->setAuto_last_visited($this->getAuto_last_visited());
                $new_obj->setCheck_values($this->getCheck_values());
                $new_obj->setOfflineMode($this->getOfflineMode());
                $new_obj->setAutoSuspend($this->getAutoSuspend());
                $new_obj->setIe_compatibility($this->getIe_compatibility());
                $new_obj->setIe_force_render($this->getIe_force_render());
                $new_obj->setStyleSheetId($this->getStyleSheetId());
                $new_obj->update();


                // set/copy stylesheet
/*              include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                $style_id = $this->getStyleSheetId();
                if ($style_id > 0 && !ilObjStyleSheet::_lookupStandard($style_id))
                {
                        $style_obj = $ilias->obj_factory->getInstanceByObjId($style_id);
                        $new_id = $style_obj->ilClone();
                        $new_obj->setStyleSheetId($new_id);
                        $new_obj->update();
                }*/
                
                // up to this point $new_obj is of type ilobjsahslearning module
                
                // create instance of correct subtype and call forward it to
                // cloneIntoNewObject method
                switch ($this->getSubType())
                {
                        case "scorm":
                                include_once("./Modules/ScormAicc/classes/class.ilObjSCORMLearningModule.php");
                                $source_obj = new ilObjSCORMLearningModule($this->getRefId());
                                $new_obj = new ilObjSCORMLearningModule($new_obj->getRefId());
                                break;
                                
                        case "scorm2004":
                                include_once("./Modules/Scorm2004/classes/class.ilObjSCORM2004LearningModule.php");
                                $source_obj = new ilObjSCORM2004LearningModule($this->getRefId());
                                $new_obj = new ilObjSCORM2004LearningModule($new_obj->getRefId());
                                break;

                        case "aicc":
                                include_once("./Modules/ScormAicc/classes/class.ilObjAICCLearningModule.php");
                                $source_obj = new ilObjAICCLearningModule($this->getRefId());
                                $new_obj = new ilObjAICCLearningModule($new_obj->getRefId());
                                break;

                        case "hacp":
                                include_once("./Modules/ScormAicc/classes/class.ilObjHACPLearningModule.php");
                                $source_obj = new ilObjHACPLearningModule($this->getRefId());
                                $new_obj = new ilObjHACPLearningModule($new_obj->getRefId());
                                break;

                }

                // copy data directory
                $new_obj->populateByDirectoy($source_obj->getDataDirectory());

                // copy authored content ...
                if ($new_obj->getEditable())
                {
                        $source_obj->copyAuthoredContent($new_obj);
                }
                else 
                {
                        // ... or read manifest file
                        $new_obj->readObject();
                }
                
                return $new_obj;
        }
        
        public function zipLmForOfflineMode()
        {
                $lmDir=ilUtil::getWebspaceDir("filesystem")."/lm_data/lm_".$this->getId();
                $zipFile=ilUtil::getDataDir()."/lm_data/lm_".$this->getId();
                return ilUtil::zip($lmDir, $zipFile, true);
        }

}
?>