class.ilLMExplorer.php

Go to the documentation of this file.

<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

/*
* Explorer View for Learning Modules
*
* @author Alex Killing <alex.killing@gmx.de>
* @version $Id$
*
* @ingroup ModulesIliasLearningModule
*/

require_once("./Services/UIComponent/Explorer/classes/class.ilExplorer.php");

class ilLMExplorer extends ilExplorer
{

        var $root_id;
        var $lm_obj;
        var $output;
                        
        protected $lp_cache; // [array]

        function ilLMExplorer($a_target, $a_lm_obj, $a_lang = "-")
        {
                parent::ilExplorer($a_target);
                $this->lang = $a_lang;
                $this->tree = new ilTree($a_lm_obj->getId());
                $this->tree->setTableNames('lm_tree','lm_data');
                $this->tree->setTreeTablePK("lm_id");
                $this->root_id = $this->tree->readRootId();
                $this->lm_obj =& $a_lm_obj;
                $this->order_column = "";
                $this->setSessionExpandVariable("lmexpand");
                $this->checkPermissions(false);
                $this->setPostSort(false);
                $this->textwidth = 200;
        }

        function formatHeader(&$tpl, $a_obj_id,$a_option)
        {
                global $lng, $ilias;
                
                $tpl->setCurrentBlock("icon");
                $tpl->setVariable("ICON_IMAGE" , ilUtil::getImagePath("icon_lm_s.png",false, "output", $this->offlineMode()));
                $tpl->setVariable("TXT_ALT_IMG", $lng->txt("obj_".$this->lm_obj->getType()));
                $tpl->parseCurrentBlock();

                $tpl->setCurrentBlock("link");
                $tpl->setVariable("TITLE", ilUtil::shortenText($this->lm_obj->getTitle(), $this->textwidth, true));
                $tpl->setVariable("LINK_TARGET", $this->buildLinkTarget("",""));
                $tpl->setVariable("TARGET", " target=\"".$this->frame_target."\"");
                $tpl->parseCurrentBlock();
                
                $tpl->touchBlock("element");
        }

        function isClickable($a_type, $a_obj_id = 0)
        {
                global $ilUser;
                // in this standard implementation
                // only the type determines, wether an object should be clickable or not
                // but this method can be overwritten and make use of the ref id
                // (this happens e.g. in class ilRepositoryExplorerGUI)
                if ($this->is_clickable[$a_type] == "n")
                {
                        return false;
                }

                // check public access
                include_once 'Services/Payment/classes/class.ilPaymentObject.php';
                if (($ilUser->getId() == ANONYMOUS_USER_ID || 
                        ilPaymentObject::_requiresPurchaseToAccess((int)$this->lm_obj->getRefId())) &&
                    !ilLMObject::_isPagePublic($a_obj_id, true))
                {
                        return false;
                }
        
                return true;
        }
        
        protected function checkLPIcon($a_id)
        {
                global $ilUser;
                                                
                // do it once for all chapters
                if($this->lp_cache[$this->lm_obj->getId()] === null)
                {                               
                        $this->lp_cache[$this->lm_obj->getId()] = false;

                        include_once './Services/Tracking/classes/class.ilLearningProgressAccess.php';
                        if(ilLearningProgressAccess::checkAccess($this->lm_obj->getRefId()))
                        {                       
                                $info = null;
                                
                                include_once './Services/Object/classes/class.ilObjectLP.php';                  
                                $olp = ilObjectLP::getInstance($this->lm_obj->getId()); 
                                if($olp->getCurrentMode() == ilLPObjSettings::LP_MODE_COLLECTION_MANUAL ||
                                        $olp->getCurrentMode() == ilLPObjSettings::LP_MODE_COLLECTION_TLT)
                                {                                                                       
                                        include_once "Services/Tracking/classes/class.ilLPStatusFactory.php";
                                        $class = ilLPStatusFactory::_getClassById($this->lm_obj->getId(), $olp->getCurrentMode());                                      
                                        $info = $class::_getStatusInfo($this->lm_obj->getId());                                                         
                                }
                                
                                // parse collection items
                                if(is_array($info["items"]))
                                {
                                        foreach($info["items"] as $item_id)
                                        {
                                                $status = ilLPStatus::LP_STATUS_NOT_ATTEMPTED_NUM;
                                                if(is_array($info["in_progress"][$item_id]) && 
                                                        in_array($ilUser->getId(), $info["in_progress"][$item_id]))
                                                {
                                                        $status = ilLPStatus::LP_STATUS_IN_PROGRESS_NUM;
                                                }
                                                else if(is_array($info["completed"][$item_id]) && 
                                                        in_array($ilUser->getId(), $info["completed"][$item_id]))
                                                {
                                                        $status = ilLPStatus::LP_STATUS_COMPLETED_NUM;
                                                }
                                                $this->lp_cache[$this->lm_obj->getId()][$item_id] =$status;
                                        }
                                }                                               
                        }               

                        include_once './Services/Tracking/classes/class.ilLearningProgressBaseGUI.php';
                }               

                if(is_array($this->lp_cache[$this->lm_obj->getId()]) &&
                        isset($this->lp_cache[$this->lm_obj->getId()][$a_id]))
                {
                        return ilLearningProgressBaseGUI::_getImagePathForStatus($this->lp_cache[$this->lm_obj->getId()][$a_id]);                                       
                }                               
        }
        
} // END class ilLMExplorer
?>