class.assTextQuestionImport.php

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<?php

class assTextQuestionImport extends assQuestionImport
{
    public $object;

    public function fromXML(
        string $importdirectory,
        int $user_id,
        ilQTIItem $item,
        int $questionpool_id,
        ?int $tst_id,
        ?ilObject &$tst_object,
        int &$question_counter,
        array $import_mapping
    ): array {
        // empty session variable for imported xhtml mobs
        ilSession::clear('import_mob_xhtml');

        $presentation = $item->getPresentation();
        $maxchars = 0;
        $maxpoints = 0;
        foreach ($presentation->order as $entry) {
            switch ($entry["type"]) {
                case "response":
                    $response = $presentation->response[$entry["index"]];
                    $rendertype = $response->getRenderType();
                    switch (strtolower(get_class($rendertype))) {
                        case "ilqtirenderfib":
                            $maxchars = $rendertype->getMaxchars();
                            break;
                    }
                    break;
            }
        }

        $feedbacksgeneric = [];
        foreach ($item->resprocessing as $resprocessing) {
            $outcomes = $resprocessing->getOutcomes();
            foreach ($outcomes->decvar as $decvar) {
                $maxpoints = $decvar->getMaxvalue();
            }

            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;
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        $this->addGeneralMetadata($item);
        $this->object->setTitle($item->getTitle());
        $this->object->setNrOfTries((int) $item->getMaxattempts());
        $this->object->setComment($item->getComment());
        $this->object->setAuthor($item->getAuthor());
        $this->object->setOwner($user_id);
        $this->object->setQuestion($this->QTIMaterialToString($item->getQuestiontext()));
        $this->object->setObjId($questionpool_id);
        $this->object->setPoints($maxpoints);
        $this->object->setMaxNumOfChars($maxchars ?? 0);
        $this->object->setWordCounterEnabled((bool) $item->getMetadataEntry('wordcounter'));
        $textrating = $item->getMetadataEntry("textrating");
        if (strlen($textrating)) {
            $this->object->setTextRating($textrating);
        }
        $this->object->setMatchcondition((strlen($item->getMetadataEntry('matchcondition'))) ? (int) $item->getMetadataEntry('matchcondition') : 0);

        $no_keywords_found = true;

        if ($item->getMetadataEntry('termrelation') !== 'non'
            && $item->getMetadataEntry('termrelation') !== null) {
            $termscoring = $this->fetchTermScoring($item);
            for ($i = 0, $iMax = count($termscoring); $i < $iMax; $i++) {
                $this->object->addAnswer($termscoring[$i]->getAnswertext(), $termscoring[$i]->getPoints());
                $no_keywords_found = false;
            }
        }

        if ($item->getMetadataEntry('termrelation') !== null) {
            $this->object->setKeywordRelation($item->getMetadataEntry('termrelation'));
        }

        $keywords = $item->getMetadataEntry("keywords");
        if ($keywords !== null) {
            $answers = explode(' ', $keywords);
            foreach ($answers as $answer) {
                $this->object->addAnswer($answer, 0);
            }
            $this->object->setKeywordRelation('one');
            $no_keywords_found = false;
        }
        if ($no_keywords_found) {
            $this->object->setKeywordRelation('non');
        }

        // additional content editing mode information
        $this->object->setAdditionalContentEditingMode(
            $this->fetchAdditionalContentEditingModeInformation($item)
        );
        $this->object->saveToDb();
        $this->importSuggestedSolutions($this->object->getId(), $item->suggested_solutions);
        foreach ($feedbacksgeneric as $correctness => $material) {
            $m = $this->QTIMaterialToString($material);
            $feedbacksgeneric[$correctness] = $m;
        }
        // handle the import of media objects in XHTML code
        $questiontext = $this->object->getQuestion();

        $feedbacks = $this->getFeedbackAnswerSpecific($item);

        if (is_array(ilSession::get("import_mob_xhtml"))) {
            foreach (ilSession::get("import_mob_xhtml") as $mob) {
                $importfile = $importdirectory . DIRECTORY_SEPARATOR . $mob["uri"];

                global $DIC; /* @var ILIAS\DI\Container $DIC */
                $DIC['ilLog']->write(__METHOD__ . ': import mob from dir: ' . $importfile);

                $media_object = ilObjMediaObject::_saveTempFileAsMediaObject(basename($importfile), $importfile, false);
                ilObjMediaObject::_saveUsage($media_object->getId(), "qpl:html", $this->object->getId());
                $questiontext = str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $questiontext);
                foreach ($feedbacks as $ident => $material) {
                    $feedbacks[$ident] = str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $material);
                }
                foreach ($feedbacksgeneric as $correctness => $material) {
                    $feedbacksgeneric[$correctness] = str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $material);
                }
            }
        }
        $this->object->setQuestion(ilRTE::_replaceMediaObjectImageSrc($questiontext, 1));
        foreach ($feedbacks as $ident => $material) {
            $index = $this->fetchIndexFromFeedbackIdent($ident);

            $this->object->feedbackOBJ->importSpecificAnswerFeedback(
                $this->object->getId(),
                0,
                $index,
                ilRTE::_replaceMediaObjectImageSrc($material, 1)
            );
        }
        foreach ($feedbacksgeneric as $correctness => $material) {
            $this->object->feedbackOBJ->importGenericFeedback(
                $this->object->getId(),
                $correctness,
                ilRTE::_replaceMediaObjectImageSrc($material, 1)
            );
        }
        $this->object->saveToDb();
        if ($tst_id > 0) {
            $q_1_id = $this->object->getId();
            $question_id = $this->object->duplicate(true, "", "", -1, $tst_id);
            $tst_object->questions[$question_counter++] = $question_id;
            $import_mapping[$item->getIdent()] = ["pool" => $q_1_id, "test" => $question_id];
        } else {
            $import_mapping[$item->getIdent()] = ["pool" => $this->object->getId(), "test" => 0];
        }
        return $import_mapping;
    }

    protected function fetchTermScoring($item): array
    {
        $termScoringString = $item->getMetadataEntry('termscoring');

        if (!strlen($termScoringString)) {
            return [];
        }

        $termScoring = @unserialize($termScoringString, ['allowed_classes' => [ASS_AnswerMultipleResponseImage::class]]);

        if (is_array($termScoring)) {
            return $termScoring;
        }

        $termScoringString = base64_decode($termScoringString);
        $termScoring = unserialize($termScoringString, ['allowed_classes' => [ASS_AnswerMultipleResponseImage::class]]);

        if (is_array($termScoring)) {
            return $termScoring;
        }

        return [];
    }
}