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638 lines
26 KiB
638 lines
26 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class MoodleImport
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*
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* @author José Loguercio <jose.loguercio@beeznest.com>
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* @package chamilo.library
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*/
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class MoodleImport
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{
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/**
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* Read and validate the moodleFile
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*
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* @param resource $uploadedFile *.* mbz file moodle course backup
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* @return bool
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*/
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public function readMoodleFile($uploadedFile)
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{
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$file = $uploadedFile['tmp_name'];
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if (is_file($file) && is_readable($file)) {
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$package = new PclZip($file);
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$packageContent = $package->listContent();
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$mainFileKey = 0;
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foreach ($packageContent as $index => $value) {
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if ($value['filename'] == 'moodle_backup.xml') {
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$mainFileKey = $index;
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break;
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}
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}
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if (!$mainFileKey) {
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Display::addFlash(Display::return_message(get_lang('FailedToImportThisIsNotAMoodleFile'), 'error'));
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}
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$folder = api_get_unique_id();
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$destinationDir = api_get_path(SYS_ARCHIVE_PATH).$folder;
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$coursePath = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/';
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$courseInfo = api_get_course_info();
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mkdir($destinationDir, api_get_permissions_for_new_directories(), true);
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$package->extract(
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PCLZIP_OPT_PATH,
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$destinationDir
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);
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$xml = @file_get_contents($destinationDir.'/moodle_backup.xml');
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$doc = new DOMDocument();
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$res = @$doc->loadXML($xml);
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if ($res) {
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$activities = $doc->getElementsByTagName('activity');
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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$currentItem = [];
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foreach($activity->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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}
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$moduleName = isset($currentItem['modulename']) ? $currentItem['modulename'] : false;
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switch ($moduleName) {
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case 'forum':
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require_once '../forum/forumfunction.inc.php';
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$catForumValues = [];
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// Read the current forum module xml.
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$moduleDir = $currentItem['directory'];
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$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
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$moduleValues = $this->readForumModule($moduleXml);
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// Create a Forum category based on Moodle forum type.
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$catForumValues['forum_category_title'] = $moduleValues['type'];
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$catForumValues['forum_category_comment'] = '';
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$catId = store_forumcategory($catForumValues);
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$forumValues = [];
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$forumValues['forum_title'] = $moduleValues['name'];
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$forumValues['forum_image'] = '';
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$forumValues['forum_comment'] = $moduleValues['intro'];
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$forumValues['forum_category'] = $catId;
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store_forum($forumValues);
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break;
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case 'quiz':
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// Read the current quiz module xml.
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// The quiz case is the very complicate process of all the import.
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// Please if you want to review the script, try to see the readingXML functions.
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// The readingXML functions in this clases do all the mayor work here.
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$moduleDir = $currentItem['directory'];
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$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
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$questionsXml = @file_get_contents($destinationDir.'/questions.xml');
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$moduleValues = $this->readQuizModule($moduleXml);
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// At this point we got all the prepared resources from Moodle file
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// $moduleValues variable contains all the necesary info to the quiz import
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// var_dump($moduleValues['question_instances']); // <-- uncomment this to see the final array
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// Lets do this ...
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$exercise = new Exercise();
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$exercise->updateTitle(Exercise::format_title_variable($moduleValues['name']));
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$exercise->updateDescription($moduleValues['intro']);
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$exercise->updateAttempts($moduleValues['attempts_number']);
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$exercise->updateFeedbackType(0);
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$exercise->setRandom(intval($moduleValues['shufflequestions']) + 1);
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$exercise->updateRandomAnswers($moduleValues['shuffleanswers']);
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$exercise->updateExpiredTime($moduleValues['timelimit']);
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if ($moduleValues['questionsperpage'] == 1) {
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$exercise->updateType(2);
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} else {
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$exercise->updateType(1);
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}
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// Create the new Quiz
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$exercise->save();
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// Ok, we got the Quiz and create it, now its time to add the Questions
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foreach ($moduleValues['question_instances'] as $index => $question) {
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$questionsValues = $this->readMainQuestionsXml($questionsXml, $question['questionid']);
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$moduleValues['question_instances'][$index] = $questionsValues;
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// Set Question Type
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$qType = $moduleValues['question_instances'][$index]['qtype'];
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// Add the matched chamilo question type to the array
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$moduleValues['question_instances'][$index]['chamilo_qtype'] = $this->matchMoodleChamiloQuestionTypes($qType);
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$questionInstance = Question::getInstance($moduleValues['question_instances'][$index]['chamilo_qtype']);
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$questionInstance->updateTitle($moduleValues['question_instances'][$index]['name']);
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$questionInstance->updateDescription($moduleValues['question_instances'][$index]['questiontext']);
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$questionInstance->updateLevel(1);
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$questionInstance->updateCategory(0);
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//Save normal question if NOT media
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if ($questionInstance->type != MEDIA_QUESTION) {
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$questionInstance->save($exercise->id);
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// modify the exercise
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$exercise->addToList($questionInstance->id);
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$exercise->update_question_positions();
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}
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$objAnswer = new Answer($questionInstance->id);
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foreach ($moduleValues['question_instances'][$index]['plugin_qtype_'.$qType.'_question'] as $slot => $answer) {
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$questionWeighting = $this->processAnswers($qType, $objAnswer, $answer, $slot + 1);
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}
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// saves the answers into the data base
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$objAnswer->save();
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// sets the total weighting of the question
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$questionInstance->updateWeighting($questionWeighting);
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$questionInstance->save();
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}
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break;
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case 'resource':
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// Read the current resource module xml.
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$moduleDir = $currentItem['directory'];
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$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
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$filesXml = @file_get_contents($destinationDir.'/files.xml');
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$moduleValues = $this->readResourceModule($moduleXml);
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$mainFileModuleValues = $this->readMainFilesXml($filesXml, $moduleValues['contextid']);
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$fileInfo = array_merge($moduleValues, $mainFileModuleValues, $currentItem);
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$documentPath = $coursePath.'document/';
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$currentResourceFilePath = $destinationDir.'/files/';
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$dirs = new RecursiveDirectoryIterator($currentResourceFilePath);
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foreach(new RecursiveIteratorIterator($dirs) as $file) {
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if (is_file($file) && strpos($file, $fileInfo['contenthash']) !== false) {
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$files = [];
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$files['file']['name'] = $fileInfo['filename'];
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$files['file']['tmp_name'] = $file->getPathname();
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$files['file']['type'] = $fileInfo['mimetype'];
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$files['file']['error'] = 0;
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$files['file']['size'] = $fileInfo['filesize'];
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$files['file']['from_file'] = true;
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$files['file']['move_file'] = true;
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$_POST['language'] = $courseInfo['language'];
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$_POST['moodle_import'] = true;
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DocumentManager::upload_document(
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$files,
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'/',
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$fileInfo['title'],
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'',
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null,
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null,
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true,
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true
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);
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}
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}
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break;
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case 'url':
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// Read the current url module xml.
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$moduleDir = $currentItem['directory'];
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$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
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$moduleValues = $this->readUrlModule($moduleXml);
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$_POST['title'] = $moduleValues['name'];
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$_POST['url'] = $moduleValues['externalurl'];
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$_POST['description'] = $moduleValues['intro'];
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$_POST['category_id'] = 0;
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$_POST['target'] = '_blank';
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Link::addlinkcategory("link");
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break;
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}
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}
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}
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}
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}
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removeDir($destinationDir);
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return $packageContent[$mainFileKey];
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}
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/**
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* Read and validate the forum module XML
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*
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* @param resource $moduleXml XML file
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readForumModule($moduleXml)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($moduleXml);
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if ($moduleRes) {
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$activities = $moduleDoc->getElementsByTagName('forum');
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$currentItem = [];
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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foreach ($activity->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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}
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}
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}
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return $currentItem;
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}
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return false;
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}
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/**
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* Read and validate the resource module XML
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*
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* @param resource $moduleXml XML file
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readResourceModule($moduleXml)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($moduleXml);
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if ($moduleRes) {
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$activities = $moduleDoc->getElementsByTagName('resource');
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$mainActivity = $moduleDoc->getElementsByTagName('activity');
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$contextId = $mainActivity->item(0)->getAttribute('contextid');
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$currentItem = [];
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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foreach($activity->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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}
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}
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}
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$currentItem['contextid'] = $contextId;
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return $currentItem;
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}
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return false;
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}
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/**
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* Read and validate the url module XML
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*
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* @param resource $moduleXml XML file
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readUrlModule($moduleXml)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($moduleXml);
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if ($moduleRes) {
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$activities = $moduleDoc->getElementsByTagName('url');
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$currentItem = [];
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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foreach ($activity->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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}
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}
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}
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return $currentItem;
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}
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return false;
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}
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/**
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* Read and validate the quiz module XML
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*
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* @param resource $moduleXml XML file
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readQuizModule($moduleXml)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($moduleXml);
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if ($moduleRes) {
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$activities = $moduleDoc->getElementsByTagName('quiz');
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$currentItem = [];
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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foreach ($activity->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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}
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}
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}
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$questions = $moduleDoc->getElementsByTagName('question_instance');
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$questionList = [];
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$counter = 0;
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foreach ($questions as $question) {
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if ($question->childNodes->length) {
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foreach ($question->childNodes as $item) {
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$questionList[$counter][$item->nodeName] = $item->nodeValue;
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}
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$counter++;
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}
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}
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$currentItem['question_instances'] = $questionList;
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return $currentItem;
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}
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return false;
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}
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/**
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* Search the current file resource in main Files XML
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*
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* @param resource $filesXml XML file
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* @param int $contextId
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readMainFilesXml($filesXml, $contextId)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($filesXml);
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if ($moduleRes) {
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$activities = $moduleDoc->getElementsByTagName('file');
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$currentItem = [];
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foreach ($activities as $activity) {
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if ($activity->childNodes->length) {
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$isThisItemThatIWant = false;
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foreach($activity->childNodes as $item) {
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if (!$isThisItemThatIWant && $item->nodeName == 'contenthash') {
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$currentItem['contenthash'] = $item->nodeValue;
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}
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if ($item->nodeName == 'contextid' && intval($item->nodeValue) == intval($contextId) && !$isThisItemThatIWant) {
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$isThisItemThatIWant = true;
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continue;
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}
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if ($isThisItemThatIWant && $item->nodeName == 'filename') {
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$currentItem['filename'] = $item->nodeValue;
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}
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if ($isThisItemThatIWant && $item->nodeName == 'filesize') {
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$currentItem['filesize'] = $item->nodeValue;
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}
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if ($isThisItemThatIWant && $item->nodeName == 'mimetype' && $item->nodeValue == 'document/unknown') {
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break;
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}
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if ($isThisItemThatIWant && $item->nodeName == 'mimetype' && $item->nodeValue !== 'document/unknown') {
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$currentItem['mimetype'] = $item->nodeValue;
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break 2;
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}
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}
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}
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}
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return $currentItem;
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}
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return false;
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}
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/**
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* Search the current quiestion resource in main Questions XML
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*
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* @param resource $questionsXml XML file
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* @param int $questionId
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* @return mixed | array if is a valid xml file, false otherwise
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*/
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public function readMainQuestionsXml($questionsXml, $questionId)
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{
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$moduleDoc = new DOMDocument();
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$moduleRes = @$moduleDoc->loadXML($questionsXml);
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if ($moduleRes) {
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$questions = $moduleDoc->getElementsByTagName('question');
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$currentItem = [];
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foreach ($questions as $question) {
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if (intval($question->getAttribute('id')) == $questionId) {
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if ($question->childNodes->length) {
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$currentItem['questionid'] = $questionId;
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$questionType = '';
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foreach($question->childNodes as $item) {
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$currentItem[$item->nodeName] = $item->nodeValue;
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if ($item->nodeName == 'qtype') {
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$questionType = $item->nodeValue;
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}
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if ($item->nodeName == 'plugin_qtype_'.$questionType.'_question') {
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$answer = $item->getElementsByTagName($this->getQuestionTypeAnswersTag($questionType));
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$currentItem['plugin_qtype_'.$questionType.'_question'] = [];
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for ($i = 0; $i <= $answer->length - 1; $i++) {
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$currentItem['plugin_qtype_'.$questionType.'_question'][$i]['answerid'] = $answer->item($i)->getAttribute('id');
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foreach ($answer->item($i)->childNodes as $properties) {
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$currentItem['plugin_qtype_'.$questionType.'_question'][$i][$properties->nodeName] = $properties->nodeValue;
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}
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}
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$typeValues = $item->getElementsByTagName($this->getQuestionTypeOptionsTag($questionType));
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for ($i = 0; $i <= $typeValues->length - 1; $i++) {
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foreach ($typeValues->item($i)->childNodes as $properties) {
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$currentItem[$questionType.'_values'][$properties->nodeName] = $properties->nodeValue;
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if ($properties->nodeName == 'sequence') {
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$sequence = $properties->nodeValue;
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$sequenceIds = explode(',', $sequence);
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foreach ($sequenceIds as $qId) {
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$questionMatch = $this->readMainQuestionsXml($questionsXml, $qId);
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$currentItem['plugin_qtype_'.$questionType.'_question'][] = $questionMatch;
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}
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}
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}
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}
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}
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}
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}
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}
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}
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$this->traverseArray($currentItem, ['#text', 'question_hints', 'tags']);
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return $currentItem;
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}
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return false;
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}
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/**
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* return the correct question type options tag
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*
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* @param string $questionType name
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* @return string question type tag
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*/
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public function getQuestionTypeOptionsTag($questionType)
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{
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switch ($questionType) {
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case 'match':
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case 'ddmatch':
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return 'matchoptions';
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break;
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default:
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return $questionType;
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break;
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}
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}
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/**
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* return the correct question type answers tag
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*
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* @param string $questionType name
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* @return string question type tag
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*/
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public function getQuestionTypeAnswersTag($questionType)
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{
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switch ($questionType) {
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case 'match':
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case 'ddmatch':
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return 'match';
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break;
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default:
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return 'answer';
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break;
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}
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}
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/**
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*
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* @param string $moodleQuestionType
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* @return integer Chamilo question type
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*/
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public function matchMoodleChamiloQuestionTypes($moodleQuestionType)
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{
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switch ($moodleQuestionType) {
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case 'multichoice':
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return UNIQUE_ANSWER;
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break;
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case 'multianswer':
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case 'shortanswer':
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case 'match':
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return FILL_IN_BLANKS;
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break;
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case 'essay':
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return FREE_ANSWER;
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break;
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case 'truefalse':
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return MULTIPLE_ANSWER_TRUE_FALSE;
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break;
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}
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}
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/**
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* Process Moodle Answers to Chamilo
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*
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* @param string $questionType
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* @param object $objAnswer
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* @param array $answerValues
|
|
* @param integer $position
|
|
* @return integer db response
|
|
*/
|
|
public function processAnswers($questionType, $objAnswer, $answerValues, $position)
|
|
{
|
|
switch ($questionType) {
|
|
case 'multichoice':
|
|
return $this->processUniqueAnswer($objAnswer, $answerValues, $position) ;
|
|
break;
|
|
case 'multianswer':
|
|
case 'shortanswer':
|
|
case 'match':
|
|
break;
|
|
case 'essay':
|
|
break;
|
|
case 'truefalse':
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Process Chamilo Unique Answer
|
|
*
|
|
* @param object $objAnswer
|
|
* @param array $answerValues
|
|
* @param integer $position
|
|
* @return integer db response
|
|
*/
|
|
public function processUniqueAnswer($objAnswer, $answerValues, $position)
|
|
{
|
|
$questionWeighting = $nbrGoodAnswers = 0;
|
|
$correct = intval($answerValues['fraction']) ? intval($answerValues['fraction']) : 0;
|
|
$answer = $answerValues['answertext'];
|
|
$comment = $answerValues['feedback'];
|
|
$weighting = $answerValues['fraction'];
|
|
$weighting = abs($weighting);
|
|
if ($weighting > 0) {
|
|
$questionWeighting += $weighting;
|
|
}
|
|
$goodAnswer = $correct ? true : false;
|
|
|
|
$objAnswer->createAnswer(
|
|
$answer,
|
|
$goodAnswer,
|
|
$comment,
|
|
$weighting,
|
|
$position,
|
|
null,
|
|
null,
|
|
''
|
|
);
|
|
|
|
return $questionWeighting;
|
|
}
|
|
|
|
/**
|
|
* Process Chamilo FillBlanks
|
|
*
|
|
* @param object $objAnswer
|
|
* @param array $answerValues
|
|
* @param integer $position
|
|
* @return integer db response
|
|
*/
|
|
public function processFillBlanks($objAnswer, $answerValues, $position)
|
|
{
|
|
$questionWeighting = $nbrGoodAnswers = 0;
|
|
$correct = intval($answerValues['fraction']) ? intval($answerValues['fraction']) : 0;
|
|
$answer = $answerValues['answertext'];
|
|
$comment = $answerValues['feedback'];
|
|
$weighting = $answerValues['fraction'];
|
|
$weighting = abs($weighting);
|
|
if ($weighting > 0) {
|
|
$questionWeighting += $weighting;
|
|
}
|
|
$goodAnswer = $correct ? true : false;
|
|
|
|
$objAnswer->createAnswer(
|
|
$answer,
|
|
$goodAnswer,
|
|
$comment,
|
|
$weighting,
|
|
$position,
|
|
null,
|
|
null,
|
|
''
|
|
);
|
|
|
|
return $questionWeighting;
|
|
}
|
|
|
|
|
|
/**
|
|
* 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]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} |