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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * Class MoodleImport.
- *
- * @author José Loguercio <jose.loguercio@beeznest.com>,
- * @author Julio Montoya <gugli100@gmail.com>
- *
- * @package chamilo.library
- */
- class MoodleImport
- {
- /**
- * Import moodle file.
- *
- * @param resource $uploadedFile *.* mbz file moodle course backup
- *
- * @throws Exception
- *
- * @return bool
- */
- public function import($uploadedFile)
- {
- if (UPLOAD_ERR_OK !== $uploadedFile['error']) {
- throw new Exception(get_lang('UploadError'));
- }
- $cachePath = api_get_path(SYS_ARCHIVE_PATH);
- $tempPath = $uploadedFile['tmp_name'];
- $nameParts = explode('.', $uploadedFile['name']);
- $extension = array_pop($nameParts);
- $name = basename($tempPath).".$extension";
- if (!move_uploaded_file($tempPath, api_get_path(SYS_ARCHIVE_PATH).$name)) {
- throw new Exception(get_lang('UploadError'));
- }
- $filePath = $cachePath.$name;
- if (!is_readable($filePath)) {
- throw new Exception(get_lang('UploadError'));
- }
- $mimeType = mime_content_type($filePath);
- $folder = api_get_unique_id();
- $destinationDir = api_get_path(SYS_ARCHIVE_PATH).$folder;
- mkdir($destinationDir, api_get_permissions_for_new_directories(), true);
- switch ($mimeType) {
- case 'application/x-gzip':
- $backUpFile = new PharData($filePath);
- if (false === $backUpFile->extractTo($destinationDir)) {
- throw new Exception(get_lang('ErrorImportingFile'));
- }
- if (!file_exists($destinationDir.'/moodle_backup.xml')) {
- throw new Exception(get_lang('FailedToImportThisIsNotAMoodleFile'));
- }
- break;
- case 'application/zip':
- $package = new PclZip($filePath);
- $mainFileKey = 0;
- $packageContent = $package->listContent();
- if (!empty($packageContent)) {
- foreach ($packageContent as $index => $value) {
- if ($value['filename'] == 'moodle_backup.xml') {
- $mainFileKey = $index;
- break;
- }
- }
- }
- if (!$mainFileKey) {
- throw new Exception(get_lang('FailedToImportThisIsNotAMoodleFile'));
- }
- $package->extract(PCLZIP_OPT_PATH, $destinationDir);
- break;
- }
- $courseInfo = api_get_course_info();
- $sessionId = api_get_session_id();
- $groupId = api_get_group_id();
- $documentPath = api_get_path(SYS_COURSE_PATH).$courseInfo['path'].'/document';
- create_unexisting_directory(
- $courseInfo,
- api_get_user_id(),
- $sessionId,
- $groupId,
- null,
- $documentPath,
- '/moodle',
- 'Moodle Docs',
- 0
- );
- // This process will upload all question resource files
- $filesXml = @file_get_contents($destinationDir.'/files.xml');
- $mainFileModuleValues = $this->getAllQuestionFiles($filesXml);
- $currentResourceFilePath = $destinationDir.'/files/';
- $importedFiles = [];
- foreach ($mainFileModuleValues as $fileInfo) {
- $dirs = new RecursiveDirectoryIterator($currentResourceFilePath);
- foreach (new RecursiveIteratorIterator($dirs) as $file) {
- if (!is_file($file) || false === strpos($file, $fileInfo['contenthash'])) {
- continue;
- }
- $files = [];
- $files['file']['name'] = $fileInfo['filename'];
- $files['file']['tmp_name'] = $file->getPathname();
- $files['file']['type'] = $fileInfo['mimetype'];
- $files['file']['error'] = 0;
- $files['file']['size'] = $fileInfo['filesize'];
- $files['file']['from_file'] = true;
- $files['file']['move_file'] = true;
- $_POST['language'] = $courseInfo['language'];
- $_POST['moodle_import'] = true;
- $data = DocumentManager::upload_document(
- $files,
- '/moodle',
- isset($fileInfo['title']) ? $fileInfo['title'] : pathinfo($fileInfo['filename'], PATHINFO_FILENAME),
- '',
- null,
- null,
- true,
- true,
- 'file',
- // This is to validate spaces as hyphens
- false
- );
- if ($data) {
- $importedFiles[$fileInfo['filename']] = basename($data['path']);
- }
- }
- }
- $xml = @file_get_contents($destinationDir.'/moodle_backup.xml');
- $doc = new DOMDocument();
- $res = @$doc->loadXML($xml);
- if (empty($res)) {
- removeDir($destinationDir);
- unlink($filePath);
- throw new Exception(get_lang('FailedToImportThisIsNotAMoodleFile'));
- }
- $activities = $doc->getElementsByTagName('activity');
- foreach ($activities as $activity) {
- if (empty($activity->childNodes->length)) {
- continue;
- }
- $currentItem = [];
- foreach ($activity->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- }
- $moduleName = isset($currentItem['modulename']) ? $currentItem['modulename'] : false;
- switch ($moduleName) {
- case 'forum':
- require_once '../forum/forumfunction.inc.php';
- $catForumValues = [];
- // Read the current forum module xml.
- $moduleDir = $currentItem['directory'];
- $moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
- $moduleValues = $this->readForumModule($moduleXml);
- // Create a Forum category based on Moodle forum type.
- $catForumValues['forum_category_title'] = $moduleValues['type'];
- $catForumValues['forum_category_comment'] = '';
- $catId = store_forumcategory(
- $catForumValues,
- $courseInfo,
- false
- );
- $forumValues = [];
- $forumValues['forum_title'] = $moduleValues['name'];
- $forumValues['forum_image'] = '';
- $forumValues['forum_comment'] = $moduleValues['intro'];
- $forumValues['forum_category'] = $catId;
- $forumValues['moderated'] = 0;
- store_forum($forumValues, $courseInfo);
- break;
- case 'quiz':
- // Read the current quiz module xml.
- // The quiz case is the very complicate process of all the import.
- // Please if you want to review the script, try to see the readingXML functions.
- // The readingXML functions in this clases do all the mayor work here.
- $moduleDir = $currentItem['directory'];
- $moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
- $questionsXml = @file_get_contents($destinationDir.'/questions.xml');
- $moduleValues = $this->readQuizModule($moduleXml);
- // At this point we got all the prepared resources from Moodle file
- // $moduleValues variable contains all the necesary info to the quiz import
- // var_dump($moduleValues); // <-- uncomment this to see the final array
- $exercise = new Exercise($courseInfo['real_id']);
- $title = Exercise::format_title_variable($moduleValues['name']);
- $exercise->updateTitle($title);
- $exercise->updateDescription($moduleValues['intro']);
- $exercise->updateAttempts($moduleValues['attempts_number']);
- $exercise->updateFeedbackType(0);
- // Match shuffle question with chamilo
- if (isset($moduleValues['shufflequestions']) &&
- (int) $moduleValues['shufflequestions'] === 1
- ) {
- $exercise->setRandom(-1);
- } else {
- $exercise->setRandom(0);
- }
- $exercise->updateRandomAnswers(!empty($moduleValues['shuffleanswers']));
- // @todo divide to minutes
- $exercise->updateExpiredTime((int) $moduleValues['timelimit']);
- if ($moduleValues['questionsperpage'] == 1) {
- $exercise->updateType(2);
- } else {
- $exercise->updateType(1);
- }
- // Create the new Quiz
- $exercise->save();
- // Ok, we got the Quiz and create it, now its time to add the Questions
- foreach ($moduleValues['question_instances'] as $index => $question) {
- $questionsValues = $this->readMainQuestionsXml(
- $questionsXml,
- $question['questionid']
- );
- $moduleValues['question_instances'][$index] = $questionsValues;
- // Set Question Type from Moodle XML element <qtype>
- $qType = $moduleValues['question_instances'][$index]['qtype'];
- // Add the matched chamilo question type to the array
- $moduleValues['question_instances'][$index]['chamilo_qtype'] =
- $this->matchMoodleChamiloQuestionTypes($qType);
- $questionInstance = Question::getInstance(
- $moduleValues['question_instances'][$index]['chamilo_qtype']
- );
- if (empty($questionInstance)) {
- continue;
- }
- $questionInstance->updateTitle(
- $moduleValues['question_instances'][$index]['name']
- );
- $questionText = $moduleValues['question_instances'][$index]['questiontext'];
- // Replace the path from @@PLUGINFILE@@ to a correct chamilo path
- $questionText = str_replace(
- '@@PLUGINFILE@@',
- '/courses/'.$courseInfo['path'].'/document/moodle',
- $questionText
- );
- if ($importedFiles) {
- $this->fixPathInText($importedFiles, $questionText);
- }
- $questionInstance->updateDescription($questionText);
- $questionInstance->updateLevel(1);
- $questionInstance->updateCategory(0);
- //Save normal question if NOT media
- if ($questionInstance->type != MEDIA_QUESTION) {
- $questionInstance->save($exercise);
- // modify the exercise
- $exercise->addToList($questionInstance->id);
- $exercise->update_question_positions();
- }
- $questionList = $moduleValues['question_instances'][$index]['plugin_qtype_'.$qType.'_question'];
- $currentQuestion = $moduleValues['question_instances'][$index];
- $this->processAnswers(
- $exercise,
- $questionList,
- $qType,
- $questionInstance,
- $currentQuestion,
- $importedFiles
- );
- }
- break;
- case 'resource':
- // Read the current resource module xml.
- $moduleDir = $currentItem['directory'];
- $moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
- $filesXml = @file_get_contents($destinationDir.'/files.xml');
- $moduleValues = $this->readResourceModule($moduleXml);
- $mainFileModuleValues = $this->readMainFilesXml(
- $filesXml,
- $moduleValues['contextid']
- );
- $fileInfo = array_merge($moduleValues, $mainFileModuleValues, $currentItem);
- $currentResourceFilePath = $destinationDir.'/files/';
- $dirs = new RecursiveDirectoryIterator($currentResourceFilePath);
- foreach (new RecursiveIteratorIterator($dirs) as $file) {
- if (!is_file($file) || false === strpos($file, $fileInfo['contenthash'])) {
- continue;
- }
- $files = [];
- $files['file']['name'] = $fileInfo['filename'];
- $files['file']['tmp_name'] = $file->getPathname();
- $files['file']['type'] = $fileInfo['mimetype'];
- $files['file']['error'] = 0;
- $files['file']['size'] = $fileInfo['filesize'];
- $files['file']['from_file'] = true;
- $files['file']['move_file'] = true;
- $_POST['language'] = $courseInfo['language'];
- $_POST['moodle_import'] = true;
- DocumentManager::upload_document(
- $files,
- '/moodle',
- $fileInfo['title'],
- '',
- null,
- null,
- true,
- true
- );
- }
- break;
- case 'url':
- // Read the current url module xml.
- $moduleDir = $currentItem['directory'];
- $moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
- $moduleValues = $this->readUrlModule($moduleXml);
- $_POST['title'] = $moduleValues['name'];
- $_POST['url'] = $moduleValues['externalurl'];
- $_POST['description'] = $moduleValues['intro'];
- $_POST['category_id'] = 0;
- $_POST['target'] = '_blank';
- Link::addlinkcategory("link");
- break;
- }
- }
- removeDir($destinationDir);
- unlink($filePath);
- return true;
- }
- /**
- * Read and validate the forum module XML.
- *
- * @param resource $moduleXml XML file
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readForumModule($moduleXml)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($moduleXml);
- if (empty($moduleRes)) {
- return false;
- }
- $activities = $moduleDoc->getElementsByTagName('forum');
- $currentItem = [];
- foreach ($activities as $activity) {
- if ($activity->childNodes->length) {
- foreach ($activity->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- }
- }
- }
- return $currentItem;
- }
- /**
- * Read and validate the resource module XML.
- *
- * @param resource $moduleXml XML file
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readResourceModule($moduleXml)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($moduleXml);
- if (empty($moduleRes)) {
- return false;
- }
- $activities = $moduleDoc->getElementsByTagName('resource');
- $mainActivity = $moduleDoc->getElementsByTagName('activity');
- $contextId = $mainActivity->item(0)->getAttribute('contextid');
- $currentItem = [];
- foreach ($activities as $activity) {
- if ($activity->childNodes->length) {
- foreach ($activity->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- }
- }
- }
- $currentItem['contextid'] = $contextId;
- return $currentItem;
- }
- /**
- * Read and validate the url module XML.
- *
- * @param resource $moduleXml XML file
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readUrlModule($moduleXml)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($moduleXml);
- if (empty($moduleRes)) {
- return false;
- }
- $activities = $moduleDoc->getElementsByTagName('url');
- $currentItem = [];
- foreach ($activities as $activity) {
- if ($activity->childNodes->length) {
- foreach ($activity->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- }
- }
- }
- return $currentItem;
- }
- /**
- * Read and validate the quiz module XML.
- *
- * @param resource $moduleXml XML file
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readQuizModule($moduleXml)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($moduleXml);
- if (empty($moduleRes)) {
- return false;
- }
- $activities = $moduleDoc->getElementsByTagName('quiz');
- $currentItem = [];
- foreach ($activities as $activity) {
- if ($activity->childNodes->length) {
- foreach ($activity->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- }
- }
- }
- $questions = $moduleDoc->getElementsByTagName('question_instance');
- $questionList = [];
- $counter = 0;
- foreach ($questions as $question) {
- if ($question->childNodes->length) {
- foreach ($question->childNodes as $item) {
- $questionList[$counter][$item->nodeName] = $item->nodeValue;
- }
- $counter++;
- }
- }
- $currentItem['question_instances'] = $questionList;
- return $currentItem;
- }
- /**
- * Search the current file resource in main Files XML.
- *
- * @param resource $filesXml XML file
- * @param int $contextId
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readMainFilesXml($filesXml, $contextId)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($filesXml);
- if (empty($moduleRes)) {
- return false;
- }
- $activities = $moduleDoc->getElementsByTagName('file');
- $currentItem = [];
- foreach ($activities as $activity) {
- if (empty($activity->childNodes->length)) {
- continue;
- }
- $isThisItemThatIWant = false;
- foreach ($activity->childNodes as $item) {
- if (!$isThisItemThatIWant && $item->nodeName == 'contenthash') {
- $currentItem['contenthash'] = $item->nodeValue;
- }
- if ($item->nodeName == 'contextid' &&
- (int) $item->nodeValue == (int) $contextId &&
- !$isThisItemThatIWant
- ) {
- $isThisItemThatIWant = true;
- continue;
- }
- if ($isThisItemThatIWant && $item->nodeName == 'filename') {
- $currentItem['filename'] = $item->nodeValue;
- }
- if ($isThisItemThatIWant && $item->nodeName == 'filesize') {
- $currentItem['filesize'] = $item->nodeValue;
- }
- if ($isThisItemThatIWant && $item->nodeName == 'mimetype' &&
- $item->nodeValue == 'document/unknown'
- ) {
- break;
- }
- if ($isThisItemThatIWant && $item->nodeName == 'mimetype' &&
- $item->nodeValue !== 'document/unknown'
- ) {
- $currentItem['mimetype'] = $item->nodeValue;
- break 2;
- }
- }
- }
- return $currentItem;
- }
- /**
- * Search the current question resource in main Questions XML.
- *
- * @param resource $questionsXml XML file
- * @param int $questionId
- *
- * @return mixed | array if is a valid xml file, false otherwise
- */
- public function readMainQuestionsXml($questionsXml, $questionId)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($questionsXml);
- if (empty($moduleRes)) {
- return false;
- }
- $questions = $moduleDoc->getElementsByTagName('question');
- $currentItem = [];
- foreach ($questions as $question) {
- if ((int) $question->getAttribute('id') !== (int) $questionId) {
- continue;
- }
- if (empty($question->childNodes->length)) {
- continue;
- }
- $currentItem['questionid'] = $questionId;
- $questionType = '';
- foreach ($question->childNodes as $item) {
- $currentItem[$item->nodeName] = $item->nodeValue;
- if ($item->nodeName == 'qtype') {
- $questionType = $item->nodeValue;
- }
- if ($item->nodeName != 'plugin_qtype_'.$questionType.'_question') {
- continue;
- }
- $answer = $item->getElementsByTagName($this->getQuestionTypeAnswersTag($questionType));
- $currentItem['plugin_qtype_'.$questionType.'_question'] = [];
- for ($i = 0; $i <= $answer->length - 1; $i++) {
- $currentItem['plugin_qtype_'.$questionType.'_question'][$i]['answerid'] =
- $answer->item($i)->getAttribute('id');
- foreach ($answer->item($i)->childNodes as $properties) {
- $currentItem['plugin_qtype_'.$questionType.'_question'][$i][$properties->nodeName] =
- $properties->nodeValue;
- }
- }
- $typeValues = $item->getElementsByTagName($this->getQuestionTypeOptionsTag($questionType));
- for ($i = 0; $i <= $typeValues->length - 1; $i++) {
- foreach ($typeValues->item($i)->childNodes as $properties) {
- $currentItem[$questionType.'_values'][$properties->nodeName] = $properties->nodeValue;
- if ($properties->nodeName != 'sequence') {
- continue;
- }
- $sequence = $properties->nodeValue;
- $sequenceIds = explode(',', $sequence);
- foreach ($sequenceIds as $qId) {
- $questionMatch = $this->readMainQuestionsXml($questionsXml, $qId);
- $currentItem['plugin_qtype_'.$questionType.'_question'][] = $questionMatch;
- }
- }
- }
- }
- }
- $this->traverseArray($currentItem, ['#text', 'question_hints', 'tags']);
- return $currentItem;
- }
- /**
- * return the correct question type options tag.
- *
- * @param string $questionType name
- *
- * @return string question type tag
- */
- public function getQuestionTypeOptionsTag($questionType)
- {
- switch ($questionType) {
- case 'match':
- case 'ddmatch':
- return 'matchoptions';
- default:
- return $questionType;
- }
- }
- /**
- * return the correct question type answers tag.
- *
- * @param string $questionType name
- *
- * @return string question type tag
- */
- public function getQuestionTypeAnswersTag($questionType)
- {
- switch ($questionType) {
- case 'match':
- case 'ddmatch':
- return 'match';
- default:
- return 'answer';
- }
- }
- /**
- * @param string $moodleQuestionType
- *
- * @return int Chamilo question type
- */
- public function matchMoodleChamiloQuestionTypes($moodleQuestionType)
- {
- switch ($moodleQuestionType) {
- case 'multichoice':
- return UNIQUE_ANSWER;
- case 'multianswer':
- case 'shortanswer':
- case 'match':
- return FILL_IN_BLANKS;
- case 'essay':
- return FREE_ANSWER;
- case 'truefalse':
- return UNIQUE_ANSWER_NO_OPTION;
- }
- }
- /**
- * Fix moodle files that contains spaces.
- *
- * @param array $importedFiles
- * @param string $text
- *
- * @return mixed
- */
- public function fixPathInText($importedFiles, &$text)
- {
- if ($importedFiles) {
- foreach ($importedFiles as $old => $new) {
- // Ofaj fix moodle file names
- // In some questions moodle text contains file with name like:
- // Bild%20Check-In-Formular%20Ausfu%CC%88llen.jpg"
- // rawurlencode function transforms '' (whitespace) to %20 and so on
- $text = str_replace(rawurlencode($old), $new, $text);
- }
- }
- return $text;
- }
- /**
- * Process Moodle Answers to Chamilo.
- *
- * @param Exercise $exercise
- * @param array $questionList
- * @param string $questionType
- * @param Question $questionInstance Question/Answer instance
- * @param array $currentQuestion
- * @param array $importedFiles
- *
- * @return int db response
- */
- public function processAnswers(
- $exercise,
- $questionList,
- $questionType,
- $questionInstance,
- $currentQuestion,
- $importedFiles
- ) {
- switch ($questionType) {
- case 'multichoice':
- $objAnswer = new Answer($questionInstance->id);
- $questionWeighting = 0;
- foreach ($questionList as $slot => $answer) {
- $this->processUniqueAnswer(
- $objAnswer,
- $answer,
- $slot + 1,
- $questionWeighting,
- $importedFiles
- );
- }
- // saves the answers into the data base
- $objAnswer->save();
- // sets the total weighting of the question
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->save($exercise);
- return true;
- case 'multianswer':
- $objAnswer = new Answer($questionInstance->id);
- $coursePath = api_get_course_path();
- $placeholder = str_replace(
- '@@PLUGINFILE@@',
- '/courses/'.$coursePath.'/document/moodle',
- $currentQuestion['questiontext']
- );
- $optionsValues = [];
- foreach ($questionList as $slot => $subQuestion) {
- $qtype = $subQuestion['qtype'];
- $optionsValues[] = $this->processFillBlanks(
- $objAnswer,
- $qtype,
- $subQuestion['plugin_qtype_'.$qtype.'_question'],
- $placeholder,
- $slot + 1,
- $importedFiles
- );
- }
- $answerOptionsWeight = '::';
- $answerOptionsSize = '';
- $questionWeighting = 0;
- foreach ($optionsValues as $index => $value) {
- $questionWeighting += $value['weight'];
- $answerOptionsWeight .= $value['weight'].',';
- $answerOptionsSize .= $value['size'].',';
- }
- $answerOptionsWeight = substr($answerOptionsWeight, 0, -1);
- $answerOptionsSize = substr($answerOptionsSize, 0, -1);
- $answerOptions = $answerOptionsWeight.':'.$answerOptionsSize.':0@';
- $placeholder = $placeholder.PHP_EOL.$answerOptions;
- // This is a minor trick to clean the question description that in a multianswer is the main placeholder
- $questionInstance->updateDescription('');
- // sets the total weighting of the question
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->save($exercise);
- $this->fixPathInText($importedFiles, $placeholder);
- // saves the answers into the data base
- $objAnswer->createAnswer($placeholder, 0, '', 0, 1);
- $objAnswer->save();
- return true;
- case 'match':
- $objAnswer = new Answer($questionInstance->id);
- $placeholder = '';
- $optionsValues = $this->processFillBlanks(
- $objAnswer,
- 'match',
- $questionList,
- $placeholder,
- 0,
- $importedFiles
- );
- $answerOptionsWeight = '::';
- $answerOptionsSize = '';
- $questionWeighting = 0;
- foreach ($optionsValues as $index => $value) {
- $questionWeighting += $value['weight'];
- $answerOptionsWeight .= $value['weight'].',';
- $answerOptionsSize .= $value['size'].',';
- }
- $answerOptionsWeight = substr($answerOptionsWeight, 0, -1);
- $answerOptionsSize = substr($answerOptionsSize, 0, -1);
- $answerOptions = $answerOptionsWeight.':'.$answerOptionsSize.':0@';
- $placeholder = $placeholder.PHP_EOL.$answerOptions;
- // sets the total weighting of the question
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->save($exercise);
- // saves the answers into the database
- $this->fixPathInText($importedFiles, $placeholder);
- $objAnswer->createAnswer($placeholder, 0, '', 0, 1);
- $objAnswer->save();
- return true;
- case 'shortanswer':
- case 'ddmatch':
- $questionWeighting = $currentQuestion['defaultmark'];
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->updateDescription(get_lang('ThisQuestionIsNotSupportedYet'));
- $questionInstance->save($exercise);
- return false;
- case 'essay':
- $questionWeighting = $currentQuestion['defaultmark'];
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->save($exercise);
- return true;
- case 'truefalse':
- $objAnswer = new Answer($questionInstance->id);
- $questionWeighting = 0;
- foreach ($questionList as $slot => $answer) {
- $this->processTrueFalse(
- $objAnswer,
- $answer,
- $slot + 1,
- $questionWeighting,
- $importedFiles
- );
- }
- // saves the answers into the data base
- $objAnswer->save();
- // sets the total weighting of the question
- $questionInstance->updateWeighting($questionWeighting);
- $questionInstance->save($exercise);
- return false;
- default:
- return false;
- }
- }
- /**
- * Process Chamilo Unique Answer.
- *
- * @param object $objAnswer
- * @param array $answerValues
- * @param int $position
- * @param int $questionWeighting
- * @param array $importedFiles
- *
- * @return int db response
- */
- public function processUniqueAnswer(
- $objAnswer,
- $answerValues,
- $position,
- &$questionWeighting,
- $importedFiles
- ) {
- $correct = (int) $answerValues['fraction'] ? (int) $answerValues['fraction'] : 0;
- $answer = $answerValues['answertext'];
- $comment = $answerValues['feedback'];
- $weighting = $answerValues['fraction'];
- $weighting = abs($weighting);
- if ($weighting > 0) {
- $questionWeighting += $weighting;
- }
- $goodAnswer = $correct ? true : false;
- $this->fixPathInText($importedFiles, $answer);
- $objAnswer->createAnswer(
- $answer,
- $goodAnswer,
- $comment,
- $weighting,
- $position,
- null,
- null,
- ''
- );
- }
- /**
- * Process Chamilo True False.
- *
- * @param object $objAnswer
- * @param array $answerValues
- * @param int $position
- * @param int $questionWeighting
- * @param array $importedFiles
- *
- * @return int db response
- */
- public function processTrueFalse(
- $objAnswer,
- $answerValues,
- $position,
- &$questionWeighting,
- $importedFiles
- ) {
- $correct = (int) $answerValues['fraction'] ? (int) $answerValues['fraction'] : 0;
- $answer = $answerValues['answertext'];
- $comment = $answerValues['feedback'];
- $weighting = $answerValues['fraction'];
- $weighting = abs($weighting);
- if ($weighting > 0) {
- $questionWeighting += $weighting;
- }
- $goodAnswer = $correct ? true : false;
- $this->fixPathInText($importedFiles, $answer);
- $objAnswer->createAnswer(
- $answer,
- $goodAnswer,
- $comment,
- $weighting,
- $position,
- null,
- null,
- ''
- );
- }
- /**
- * Process Chamilo FillBlanks.
- *
- * @param object $objAnswer
- * @param array $questionType
- * @param array $answerValues
- * @param string $placeholder
- * @param int $position
- * @param array $importedFiles
- *
- * @return int db response
- */
- public function processFillBlanks(
- $objAnswer,
- $questionType,
- $answerValues,
- &$placeholder,
- $position,
- $importedFiles
- ) {
- $coursePath = api_get_course_path();
- switch ($questionType) {
- case 'multichoice':
- $optionsValues = [];
- $correctAnswer = '';
- $othersAnswer = '';
- foreach ($answerValues as $answer) {
- $correct = (int) $answer['fraction'];
- if ($correct) {
- $correctAnswer .= $answer['answertext'].'|';
- $optionsValues['weight'] = $answer['fraction'];
- $optionsValues['size'] = '200';
- } else {
- $othersAnswer .= $answer['answertext'].'|';
- }
- }
- $currentAnswers = $correctAnswer.$othersAnswer;
- $currentAnswers = '['.substr($currentAnswers, 0, -1).']';
- $placeholder = str_replace("{#$position}", $currentAnswers, $placeholder);
- return $optionsValues;
- case 'shortanswer':
- $optionsValues = [];
- $correctAnswer = '';
- foreach ($answerValues as $answer) {
- $correct = (int) $answer['fraction'];
- if ($correct) {
- $correctAnswer .= $answer['answertext'];
- $optionsValues['weight'] = $answer['fraction'];
- $optionsValues['size'] = '200';
- }
- }
- $currentAnswers = '['.$correctAnswer.']';
- $placeholder = str_replace("{#$position}", $currentAnswers, $placeholder);
- return $optionsValues;
- case 'match':
- $answers = [];
- // Here first we need to extract all the possible answers
- foreach ($answerValues as $slot => $answer) {
- $answers[$slot] = $answer['answertext'];
- }
- // Now we set the order of the values matching the correct answer and set it to the first element
- $optionsValues = [];
- foreach ($answerValues as $slot => $answer) {
- $correctAnswer = '';
- $othersAnswers = '';
- $correctAnswer .= $answer['answertext'].'|';
- foreach ($answers as $other) {
- if ($other !== $answer['answertext']) {
- $othersAnswers .= $other.'|';
- }
- }
- $optionsValues[$slot]['weight'] = 1;
- $optionsValues[$slot]['size'] = '200';
- $currentAnswers = htmlentities($correctAnswer.$othersAnswers);
- $currentAnswers = '['.substr($currentAnswers, 0, -1).'] ';
- $answer['questiontext'] = str_replace(
- '@@PLUGINFILE@@',
- '/courses/'.$coursePath.'/document/moodle',
- $answer['questiontext']
- );
- $placeholder .= '<p> '.strip_tags($answer['questiontext']).' '.$currentAnswers.' </p>';
- }
- return $optionsValues;
- default:
- return false;
- }
- }
- /**
- * get All files associated with a question.
- *
- * @param $filesXml
- *
- * @return array
- */
- public function getAllQuestionFiles($filesXml)
- {
- $moduleDoc = new DOMDocument();
- $moduleRes = @$moduleDoc->loadXML($filesXml);
- if (empty($moduleRes)) {
- return [];
- }
- $allFiles = [];
- $activities = $moduleDoc->getElementsByTagName('file');
- foreach ($activities as $activity) {
- $currentItem = [];
- $thisIsAnInvalidItem = false;
- if ($activity->childNodes->length) {
- foreach ($activity->childNodes as $item) {
- if ($item->nodeName == 'component' && $item->nodeValue == 'mod_resource') {
- $thisIsAnInvalidItem = true;
- }
- if ($item->nodeName == 'contenthash') {
- $currentItem['contenthash'] = $item->nodeValue;
- }
- if ($item->nodeName == 'filename') {
- $currentItem['filename'] = $item->nodeValue;
- }
- if ($item->nodeName == 'filesize') {
- $currentItem['filesize'] = $item->nodeValue;
- }
- if ($item->nodeName == 'mimetype' && $item->nodeValue == 'document/unknown') {
- $thisIsAnInvalidItem = true;
- }
- if ($item->nodeName == 'mimetype' && $item->nodeValue !== 'document/unknown') {
- $currentItem['mimetype'] = $item->nodeValue;
- }
- }
- }
- if (!$thisIsAnInvalidItem) {
- $allFiles[] = $currentItem;
- }
- }
- return $allFiles;
- }
- /**
- * Litle utility to delete the unuseful tags.
- *
- * @param $array
- * @param $keys
- */
- public function traverseArray(&$array, $keys)
- {
- foreach ($array as $key => &$value) {
- if (is_array($value)) {
- $this->traverseArray($value, $keys);
- } else {
- if (in_array($key, $keys)) {
- unset($array[$key]);
- }
- }
- }
- }
- }
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