class.assQuestionImport.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
include_once "./Modules/Test/classes/inc.AssessmentConstants.php";
 
class assQuestionImport
{
    public $object;
 
    public function __construct($a_object)
    {
        $this->object = $a_object;
    }
    
    public function getFeedbackGeneric($item)
    {
        $feedbacksgeneric = array();
        foreach ($item->resprocessing as $resprocessing) {
            foreach ($resprocessing->respcondition as $respcondition) {
                foreach ($respcondition->displayfeedback as $feedbackpointer) {
                    if (strlen($feedbackpointer->getLinkrefid())) {
                        foreach ($item->itemfeedback as $ifb) {
                            if (strcmp($ifb->getIdent(), "response_allcorrect") == 0) {
                                // found a feedback for the identifier
                                if (count($ifb->material)) {
                                    foreach ($ifb->material as $material) {
                                        $feedbacksgeneric[1] = $material;
                                    }
                                }
                                if ((count($ifb->flow_mat) > 0)) {
                                    foreach ($ifb->flow_mat as $fmat) {
                                        if (count($fmat->material)) {
                                            foreach ($fmat->material as $material) {
                                                $feedbacksgeneric[1] = $material;
                                            }
                                        }
                                    }
                                }
                            } elseif (strcmp($ifb->getIdent(), "response_onenotcorrect") == 0) {
                                // found a feedback for the identifier
                                if (count($ifb->material)) {
                                    foreach ($ifb->material as $material) {
                                        $feedbacksgeneric[0] = $material;
                                    }
                                }
                                if ((count($ifb->flow_mat) > 0)) {
                                    foreach ($ifb->flow_mat as $fmat) {
                                        if (count($fmat->material)) {
                                            foreach ($fmat->material as $material) {
                                                $feedbacksgeneric[0] = $material;
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        // handle the import of media objects in XHTML code
        foreach ($feedbacksgeneric as $correctness => $material) {
            $m = $this->object->QTIMaterialToString($material);
            $feedbacksgeneric[$correctness] = $m;
        }
        return $feedbacksgeneric;
    }
    
    protected function fetchIndexFromFeedbackIdent($feedbackIdent, $prefix = 'response_')
    {
        return (int) str_replace($prefix, '', $feedbackIdent);
    }
    
    protected function getFeedbackAnswerSpecific(ilQTIItem $item, $prefix = 'response_')
    {
        $feedbacks = array();
        
        foreach ($item->itemfeedback as $ifb) {
            if ($ifb->getIdent() == 'response_allcorrect' || $ifb->getIdent() == 'response_onenotcorrect') {
                continue;
            }
            
            if ($ifb->getIdent() == $prefix . 'allcorrect' || $ifb->getIdent() == $prefix . 'onenotcorrect') {
                continue;
            }
            
            if (substr($ifb->getIdent(), 0, strlen($prefix)) != $prefix) {
                continue;
            }
 
            $ident = $ifb->getIdent();
            
            // found a feedback for the identifier
            
            if (count($ifb->material)) {
                foreach ($ifb->material as $material) {
                    $feedbacks[$ident] = $material;
                }
            }
            
            if ((count($ifb->flow_mat) > 0)) {
                foreach ($ifb->flow_mat as $fmat) {
                    if (count($fmat->material)) {
                        foreach ($fmat->material as $material) {
                            $feedbacks[$ident] = $material;
                        }
                    }
                }
            }
        }
        
        foreach ($feedbacks as $ident => $material) {
            $m = $this->object->QTIMaterialToString($material);
            $feedbacks[$ident] = $m;
        }
        
        return $feedbacks;
    }
 
    public function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_counter, &$import_mapping)
    {
    }
 
    protected function addGeneralMetadata(ilQTIItem $item)
    {
        if ($item->getMetadataEntry('externalID')) {
            $this->object->setExternalId($item->getMetadataEntry('externalID'));
        } else {
            $this->object->setExternalId($item->getMetadataEntry('externalId'));
        }
 
        $this->object->setLifecycle($this->fetchLifecycle($item));
    }
    
    protected function fetchLifecycle(ilQTIItem $item)
    {
        try {
            $lifecycle = ilAssQuestionLifecycle::getInstance(
                $item->getMetadataEntry('ilias_lifecycle')
            );
        } catch (ilTestQuestionPoolInvalidArgumentException $e) {
            try {
                $lomLifecycle = new ilAssQuestionLomLifecycle(
                    $item->getMetadataEntry('lifecycle')
                );
                
                $lifecycle = ilAssQuestionLifecycle::getInstance(
                    $lomLifecycle->getMappedIliasLifecycleIdentifer()
                );
            } catch (ilTestQuestionPoolInvalidArgumentException $e) {
                $lifecycle = ilAssQuestionLifecycle::getDraftInstance();
            }
        }
        
        return $lifecycle;
    }
    
    protected function getQplImportArchivDirectory()
    {
        include_once "./Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php";
        return ilObjQuestionPool::_getImportDirectory() . '/' . $_SESSION["qpl_import_subdir"];
    }
    
    protected function getTstImportArchivDirectory()
    {
        include_once "./Modules/Test/classes/class.ilObjTest.php";
        return ilObjTest::_getImportDirectory() . '/' . $_SESSION["tst_import_subdir"];
    }
    
    protected function processNonAbstractedImageReferences($text, $sourceNic)
    {
        $reg = '/<img.*src=".*\\/mm_(\\d+)\\/(.*?)".*>/m';
        $matches = null;
        
        if (preg_match_all($reg, $text, $matches)) {
            for ($i = 0, $max = count($matches[1]); $i < $max; $i++) {
                $mobSrcId = $matches[1][$i];
                $mobSrcName = $matches[2][$i];
                $mobSrcLabel = 'il_' . $sourceNic . '_mob_' . $mobSrcId;
 
                if (!is_array($_SESSION["import_mob_xhtml"])) {
                    $_SESSION["import_mob_xhtml"] = array();
                }
 
                $_SESSION["import_mob_xhtml"][] = array(
                    "mob" => $mobSrcLabel, "uri" => 'objects/' . $mobSrcLabel . '/' . $mobSrcName
                );
            }
        }
 
        include_once "./Services/RTE/classes/class.ilRTE.php";
        return ilRTE::_replaceMediaObjectImageSrc($text, 0, $sourceNic);
    }
    
    final protected function fetchAdditionalContentEditingModeInformation($qtiItem)
    {
        $additionalContentEditingMode = $qtiItem->getMetadataEntry('additional_cont_edit_mode');
        
        if (!$this->object->isValidAdditionalContentEditingMode($additionalContentEditingMode)) {
            $additionalContentEditingMode = assQuestion::ADDITIONAL_CONTENT_EDITING_MODE_DEFAULT;
        }
        
        return $additionalContentEditingMode;
    }
}