class.ilTestQuestionPoolImporter.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Export/classes/class.ilXmlImporter.php");

class ilTestQuestionPoolImporter extends ilXmlImporter
{
        private $poolOBJ;
        
        function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
        {
                include_once "./Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php";
                ilObjQuestionPool::_setImportDirectory($this->getImportDirectoryContainer());
                
                // Container import => pool object already created
                if($new_id = $a_mapping->getMapping('Services/Container','objs',$a_id))
                {
                        $newObj = ilObjectFactory::getInstanceByObjId($new_id,false);
                        $newObj->setOnline(true);

                        $_SESSION['qpl_import_subdir'] = $this->getImportPackageName();
                }
                else if ($new_id = $a_mapping->getMapping('Modules/TestQuestionPool','qpl', "new_id"))
                {
                        $newObj = ilObjectFactory::getInstanceByObjId($new_id,false);
                }
                else
                {
                        // Shouldn't happen
                        $GLOBALS['ilLog']->write(__METHOD__.': non container and no tax mapping, perhaps old qpl export' );
                        return false;
                }

                

                list($xml_file,$qti_file) = $this->parseXmlFileNames();

                if(!@file_exists($xml_file))
                {
                        $GLOBALS['ilLog']->write(__METHOD__.': Cannot find xml definition: '. $xml_file);
                        return false;
                }
                if(!@file_exists($qti_file))
                {
                        $GLOBALS['ilLog']->write(__METHOD__.': Cannot find qti definition: '. $qti_file);
                        return false;
                }
                
                $newObj->fromXML($xml_file);

                // set another question pool name (if possible)
                if( isset($_POST["qpl_new"]) && strlen($_POST["qpl_new"]) )
                {
                        $newObj->setTitle($_POST["qpl_new"]);
                }
                
                $newObj->update();
                $newObj->saveToDb();

                // FIXME: Copied from ilObjQuestionPoolGUI::importVerifiedFileObject
                // TODO: move all logic to ilObjQuestionPoolGUI::importVerifiedFile and call 
                // this method from ilObjQuestionPoolGUI and ilTestImporter 

                $GLOBALS['ilLog']->write(__METHOD__.': xml file: '. $xml_file . ", qti file:" . $qti_file);
                
                if( isset($_SESSION["qpl_import_idents"]) )
                {
                        $idents = $_SESSION["qpl_import_idents"];
                        unset($_SESSION["qpl_import_idents"]);
                }
                else
                {
                        $idents = null;
                }
                
                // start parsing of QTI files
                include_once "./Services/QTI/classes/class.ilQTIParser.php";
                $qtiParser = new ilQTIParser($qti_file, IL_MO_PARSE_QTI, $newObj->getId(), $idents);
                $result = $qtiParser->startParsing();

                // import page data
                if (strlen($xml_file))
                {
                        include_once ("./Modules/LearningModule/classes/class.ilContObjParser.php");
                        $contParser = new ilContObjParser($newObj, $xml_file, basename($this->getImportDirectory()));
                        $contParser->setQuestionMapping($qtiParser->getImportMapping());
                        $contParser->startParsing();
                        
                        foreach ($qtiParser->getImportMapping() as $k => $v)
                        {
                                $oldQuestionId = substr($k, strpos($k, 'qst_')+strlen('qst_'));
                                $newQuestionId = $v['pool']; // yes, this is the new question id ^^
                                
                                $a_mapping->addMapping(
                                        "Services/Taxonomy", "tax_item", "qpl:quest:$oldQuestionId", $newQuestionId
                                );
                                
                                $a_mapping->addMapping(
                                        "Services/Taxonomy", "tax_item_obj_id", "qpl:quest:$oldQuestionId", $newObj->getId()
                                );

                                $a_mapping->addMapping(
                                        "Modules/TestQuestionPool", "quest", $oldQuestionId, $newQuestionId
                                );
                        }
                }

                $a_mapping->addMapping("Modules/TestQuestionPool", "qpl", $a_id, $newObj->getId());
                ilObjQuestionPool::_setImportDirectory(null);
                
                $this->poolOBJ = $newObj;
        }

        function finalProcessing($a_mapping)
        {
                //echo "<pre>".print_r($a_mapping, true)."</pre>"; exit;
                // get all glossaries of the import
                include_once("./Services/Taxonomy/classes/class.ilObjTaxonomy.php");
                $maps = $a_mapping->getMappingsOfEntity("Modules/TestQuestionPool", "qpl");
                foreach ($maps as $old => $new)
                {
                        if ($old != "new_id" && (int) $old > 0)
                        {
                                // get all new taxonomys of this object
                                $new_tax_ids = $a_mapping->getMapping("Services/Taxonomy", "tax_usage_of_obj", $old);
                                if($new_tax_ids !== false)
                                {
                                        $tax_ids = explode(":", $new_tax_ids);
                                        foreach($tax_ids as $tid)
                                        {
                                                ilObjTaxonomy::saveUsage($tid, $new);
                                        }
                                }
                                
                                $taxMappings = $a_mapping->getMappingsOfEntity('Services/Taxonomy', 'tax');
                                foreach($taxMappings as $oldTaxId => $newTaxId)
                                {
                                        if( $oldTaxId == $this->poolOBJ->getNavTaxonomyId() )
                                        {
                                                $this->poolOBJ->setNavTaxonomyId($newTaxId);
                                                $this->poolOBJ->saveToDb();
                                                break;
                                        }
                                }
                        }
                }
        }
        
        protected function parseXmlFileNames()
        {
                $GLOBALS['ilLog']->write(__METHOD__.': '.$this->getImportDirectory());
                
                $basename = basename($this->getImportDirectory());

                $xml = $this->getImportDirectory().'/'.$basename.'.xml';
                $qti = $this->getImportDirectory().'/'.preg_replace('/qpl/', 'qti', $basename).'.xml';
                
                return array($xml,$qti);
        }

        private function getImportDirectoryContainer()
        {
                $dir = $this->getImportDirectory();
                $dir = dirname($dir);
                return $dir;
        }

        private function getImportPackageName()
        {
                $dir = $this->getImportDirectory();
                $name = basename($dir);
                return $name;
        }
}

?>