MoodleImport::traverseArray() - Code Metrics - Inspection of "WIP - Moodle Course Import (90%) - Refs BT#11209" - chamilo/chamilo-lms - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — 1.11.x (#1285)

by José

created 2016-07-12 15:23 UTC

MoodleImport::traverseArray() A

↳ Parent: MoodleImport

Complexity

Conditions	4
Paths	4

Size

Total Lines	11
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	4
eloc	7
c	1
b	0
f	0
nc	4
nop	2
dl	0
loc	11
rs	9.2

<?php
/* For licensing terms, see /license.txt */

/**
 * Class MoodleImport
 *
 * @author José Loguercio <[email protected]>
 * @package chamilo.library
 */

class MoodleImport
{
    /**
     * Read and validate the moodleFile
     *
     * @param resource $uploadedFile *.* mbz file moodle course backup
     * @return bool
     */
    public function readMoodleFile($uploadedFile)
    {
        $file = $uploadedFile['tmp_name'];

        if (is_file($file) && is_readable($file)) {
            $package = new PclZip($file);
            $packageContent = $package->listContent();
            $mainFileKey = 0;
            foreach ($packageContent as $index => $value) {
                if ($value['filename'] == 'moodle_backup.xml') {
                    $mainFileKey = $index;
                    break;
                }
            }

            if (!$mainFileKey) {
                Display::addFlash(Display::return_message(get_lang('FailedToImportThisIsNotAMoodleFile'), 'error'));
            }

            $folder = api_get_unique_id();
            $destinationDir = api_get_path(SYS_ARCHIVE_PATH).$folder;
            $coursePath = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/';
            $courseInfo = api_get_course_info();

            mkdir($destinationDir, api_get_permissions_for_new_directories(), true);

            $package->extract(
                PCLZIP_OPT_PATH,
                $destinationDir
            );

            $xml = @file_get_contents($destinationDir.'/moodle_backup.xml');

            $doc = new DOMDocument();
            $res = @$doc->loadXML($xml);
            if ($res) {
                $activities = $doc->getElementsByTagName('activity');
                foreach ($activities as $activity) {
                    if ($activity->childNodes->length) {
                        $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);
                                $forumValues = [];
                                $forumValues['forum_title'] = $moduleValues['name'];
                                $forumValues['forum_image'] = '';
                                $forumValues['forum_comment'] = $moduleValues['intro'];
                                $forumValues['forum_category'] = $catId;

                                store_forum($forumValues);
                                break;
                            case 'quiz':
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

                                // 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['question_instances']); // <-- uncomment this to see the final array

                                // Lets do this ...
                                $exercise = new Exercise();
                                $exercise->updateTitle(Exercise::format_title_variable($moduleValues['name']));
                                $exercise->updateDescription($moduleValues['intro']);
                                $exercise->updateAttempts($moduleValues['attempts_number']);
                                $exercise->updateFeedbackType(0);
                                $exercise->setRandom(intval($moduleValues['shufflequestions']) + 1);
                                $exercise->updateRandomAnswers($moduleValues['shuffleanswers']);
                                $exercise->updateExpiredTime($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
                                    $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']);
                                    $questionInstance->updateTitle($moduleValues['question_instances'][$index]['name']);
                                    $questionInstance->updateDescription($moduleValues['question_instances'][$index]['questiontext']);
                                    $questionInstance->updateLevel(1);
                                    $questionInstance->updateCategory(0);

                                    //Save normal question if NOT media
                                    if ($questionInstance->type != MEDIA_QUESTION) {
                                        $questionInstance->save($exercise->id);

                                        // modify the exercise
                                        $exercise->addToList($questionInstance->id);
                                        $exercise->update_question_positions();
                                    }

                                    $objAnswer = new Answer($questionInstance->id);

                                    foreach ($moduleValues['question_instances'][$index]['plugin_qtype_'.$qType.'_question'] as $slot => $answer) {
                                        $questionWeighting = $this->processAnswers($qType, $objAnswer, $answer, $slot + 1);
                                    }

                                    // saves the answers into the data base
                                    $objAnswer->save();

                                    // sets the total weighting of the question
                                    $questionInstance->updateWeighting($questionWeighting);
                                    $questionInstance->save();
                                }

                                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);
                                $documentPath = $coursePath.'document/';
                                $currentResourceFilePath = $destinationDir.'/files/';
                                $dirs = new RecursiveDirectoryIterator($currentResourceFilePath);
                                foreach(new RecursiveIteratorIterator($dirs) as $file) {
                                    if (is_file($file) && strpos($file, $fileInfo['contenthash']) !== false) {
                                        $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,
                                            '/',
                                            $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);
        return $packageContent[$mainFileKey];
    }

    /**
     * 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($moduleXml);
        if ($moduleRes) {
            $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;
        }

        return false;
    }

    /**
     * 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($moduleXml);
        if ($moduleRes) {
            $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;
        }

        return false;
    }

    /**
     * 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($moduleXml);
        if ($moduleRes) {
            $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;
        }

        return false;
    }

    /**
     * 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($moduleXml);
        if ($moduleRes) {
            $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;
        }

        return false;
    }

    /**
     * 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($filesXml);
        if ($moduleRes) {
            $activities = $moduleDoc->getElementsByTagName('file');
            $currentItem = [];
            foreach ($activities as $activity) {
                if ($activity->childNodes->length) {
                    $isThisItemThatIWant = false;
                    foreach($activity->childNodes as $item) {
                        if (!$isThisItemThatIWant && $item->nodeName == 'contenthash') {
                            $currentItem['contenthash'] = $item->nodeValue;
                        }
                        if ($item->nodeName == 'contextid' && intval($item->nodeValue) == intval($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;
        }

        return false;
    }

    /**
     * Search the current quiestion 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($questionsXml);
        if ($moduleRes) {
            $questions = $moduleDoc->getElementsByTagName('question');
            $currentItem = [];
            foreach ($questions as $question) {
                if (intval($question->getAttribute('id')) == $questionId) {
                    if ($question->childNodes->length) {
                        $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') {
                                $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') {
                                            $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 false;
    }

    /**
     * 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';
                break;
            default:
                return $questionType;
                break;
        }
    }

    /**
     * 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';
                break;
            default:
                return 'answer';
                break;
        }
    }

    /**
     *
     * @param string $moodleQuestionType
     * @return integer Chamilo question type
     */
    public function matchMoodleChamiloQuestionTypes($moodleQuestionType)
    {
        switch ($moodleQuestionType) {
            case 'multichoice':
                return UNIQUE_ANSWER;
                break;
            case 'multianswer':
            case 'shortanswer':
            case 'match':
                return FILL_IN_BLANKS;
                break;
            case 'essay':
                return FREE_ANSWER;
                break;
            case 'truefalse':
                return MULTIPLE_ANSWER_TRUE_FALSE;
            break;
        }
    }

    /**
     * Process Moodle Answers to Chamilo
     *
     * @param string $questionType
     * @param object $objAnswer
     * @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]);
                }
            }
        }
    }

}

1		<?php
2		/* For licensing terms, see /license.txt */
3
4		/**
5		* Class MoodleImport
6		*
7		* @author José Loguercio <[email protected]>
8		* @package chamilo.library
9		*/
10
11		class MoodleImport
12		{
13		/**
14		* Read and validate the moodleFile
15		*
16		* @param resource $uploadedFile . mbz file moodle course backup
17		* @return bool
18		*/
19		public function readMoodleFile($uploadedFile)
20		{
21		$file = $uploadedFile['tmp_name'];
22
23		if (is_file($file) && is_readable($file)) {
24		$package = new PclZip($file);
25		$packageContent = $package->listContent();
26		$mainFileKey = 0;
27		foreach ($packageContent as $index => $value) {
28		if ($value['filename'] == 'moodle_backup.xml') {
29		$mainFileKey = $index;
30		break;
31		}
32		}
33
34		if (!$mainFileKey) {
35		Display::addFlash(Display::return_message(get_lang('FailedToImportThisIsNotAMoodleFile'), 'error'));
36		}
37
38		$folder = api_get_unique_id();
39		$destinationDir = api_get_path(SYS_ARCHIVE_PATH).$folder;
40		$coursePath = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/';
41		$courseInfo = api_get_course_info();
42
43		mkdir($destinationDir, api_get_permissions_for_new_directories(), true);
44
45		$package->extract(
46		PCLZIP_OPT_PATH,
47		$destinationDir
48		);
49
50		$xml = @file_get_contents($destinationDir.'/moodle_backup.xml');
51
52		$doc = new DOMDocument();
53		$res = @$doc->loadXML($xml);
54		if ($res) {
55		$activities = $doc->getElementsByTagName('activity');
56		foreach ($activities as $activity) {
57		if ($activity->childNodes->length) {
58		$currentItem = [];
59
60		foreach($activity->childNodes as $item) {
61		$currentItem[$item->nodeName] = $item->nodeValue;
62		}
63
64		$moduleName = isset($currentItem['modulename']) ? $currentItem['modulename'] : false;
65		switch ($moduleName) {
66		case 'forum':
67		require_once '../forum/forumfunction.inc.php';
68		$catForumValues = [];
69
70		// Read the current forum module xml.
71		$moduleDir = $currentItem['directory'];
72		$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
73		$moduleValues = $this->readForumModule($moduleXml);
74
75		// Create a Forum category based on Moodle forum type.
76		$catForumValues['forum_category_title'] = $moduleValues['type'];
77		$catForumValues['forum_category_comment'] = '';
78		$catId = store_forumcategory($catForumValues);
79		$forumValues = [];
80		$forumValues['forum_title'] = $moduleValues['name'];
81		$forumValues['forum_image'] = '';
82		$forumValues['forum_comment'] = $moduleValues['intro'];
83		$forumValues['forum_category'] = $catId;
84
85		store_forum($forumValues);
86		break;
87		case 'quiz':
		0 ignored issues – show Coding Style introduced 2016-07-12 01:36 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
88
89		// Read the current quiz module xml.
90		// The quiz case is the very complicate process of all the import.
91		// Please if you want to review the script, try to see the readingXML functions.
92		// The readingXML functions in this clases do all the mayor work here.
93
94		$moduleDir = $currentItem['directory'];
95		$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
96		$questionsXml = @file_get_contents($destinationDir.'/questions.xml');
97		$moduleValues = $this->readQuizModule($moduleXml);
98
99		// At this point we got all the prepared resources from Moodle file
100		// $moduleValues variable contains all the necesary info to the quiz import
101		// var_dump($moduleValues['question_instances']); // <-- uncomment this to see the final array
102
103		// Lets do this ...
104		$exercise = new Exercise();
105		$exercise->updateTitle(Exercise::format_title_variable($moduleValues['name']));
106		$exercise->updateDescription($moduleValues['intro']);
107		$exercise->updateAttempts($moduleValues['attempts_number']);
108		$exercise->updateFeedbackType(0);
109		$exercise->setRandom(intval($moduleValues['shufflequestions']) + 1);
110		$exercise->updateRandomAnswers($moduleValues['shuffleanswers']);
111		$exercise->updateExpiredTime($moduleValues['timelimit']);
112
113		if ($moduleValues['questionsperpage'] == 1) {
114		$exercise->updateType(2);
115		} else {
116		$exercise->updateType(1);
117		}
118
119		// Create the new Quiz
120		$exercise->save();
121
122		// Ok, we got the Quiz and create it, now its time to add the Questions
123		foreach ($moduleValues['question_instances'] as $index => $question) {
124		$questionsValues = $this->readMainQuestionsXml($questionsXml, $question['questionid']);
125		$moduleValues['question_instances'][$index] = $questionsValues;
126		// Set Question Type
127		$qType = $moduleValues['question_instances'][$index]['qtype'];
128		// Add the matched chamilo question type to the array
129		$moduleValues['question_instances'][$index]['chamilo_qtype'] = $this->matchMoodleChamiloQuestionTypes($qType);
130		$questionInstance = Question::getInstance($moduleValues['question_instances'][$index]['chamilo_qtype']);
131		$questionInstance->updateTitle($moduleValues['question_instances'][$index]['name']);
132		$questionInstance->updateDescription($moduleValues['question_instances'][$index]['questiontext']);
133		$questionInstance->updateLevel(1);
134		$questionInstance->updateCategory(0);
135
136		//Save normal question if NOT media
137		if ($questionInstance->type != MEDIA_QUESTION) {
138		$questionInstance->save($exercise->id);
139
140		// modify the exercise
141		$exercise->addToList($questionInstance->id);
142		$exercise->update_question_positions();
143		}
144
145		$objAnswer = new Answer($questionInstance->id);
146
147		foreach ($moduleValues['question_instances'][$index]['plugin_qtype_'.$qType.'_question'] as $slot => $answer) {
148		$questionWeighting = $this->processAnswers($qType, $objAnswer, $answer, $slot + 1);
149		}
150
151		// saves the answers into the data base
152		$objAnswer->save();
153
154		// sets the total weighting of the question
155		$questionInstance->updateWeighting($questionWeighting);
156		$questionInstance->save();
157		}
158
159		break;
160		case 'resource':
161		// Read the current resource module xml.
162		$moduleDir = $currentItem['directory'];
163		$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
164		$filesXml = @file_get_contents($destinationDir.'/files.xml');
165		$moduleValues = $this->readResourceModule($moduleXml);
166		$mainFileModuleValues = $this->readMainFilesXml($filesXml, $moduleValues['contextid']);
167		$fileInfo = array_merge($moduleValues, $mainFileModuleValues, $currentItem);
168		$documentPath = $coursePath.'document/';
169		$currentResourceFilePath = $destinationDir.'/files/';
170		$dirs = new RecursiveDirectoryIterator($currentResourceFilePath);
171		foreach(new RecursiveIteratorIterator($dirs) as $file) {
172		if (is_file($file) && strpos($file, $fileInfo['contenthash']) !== false) {
173		$files = [];
174		$files['file']['name'] = $fileInfo['filename'];
175		$files['file']['tmp_name'] = $file->getPathname();
176		$files['file']['type'] = $fileInfo['mimetype'];
177		$files['file']['error'] = 0;
178		$files['file']['size'] = $fileInfo['filesize'];
179		$files['file']['from_file'] = true;
180		$files['file']['move_file'] = true;
181		$_POST['language'] = $courseInfo['language'];
182		$_POST['moodle_import'] = true;
183
184		DocumentManager::upload_document(
185		$files,
186		'/',
187		$fileInfo['title'],
188		'',
189		null,
190		null,
191		true,
192		true
193		);
194		}
195		}
196
197		break;
198		case 'url':
199		// Read the current url module xml.
200		$moduleDir = $currentItem['directory'];
201		$moduleXml = @file_get_contents($destinationDir.'/'.$moduleDir.'/'.$moduleName.'.xml');
202		$moduleValues = $this->readUrlModule($moduleXml);
203		$_POST['title'] = $moduleValues['name'];
204		$_POST['url'] = $moduleValues['externalurl'];
205		$_POST['description'] = $moduleValues['intro'];
206		$_POST['category_id'] = 0;
207		$_POST['target'] = '_blank';
208
209		Link::addlinkcategory("link");
210		break;
211		}
212		}
213		}
214		}
215		}
216
217		removeDir($destinationDir);
218		return $packageContent[$mainFileKey];
219		}
220
221		/**
222		* Read and validate the forum module XML
223		*
224		* @param resource $moduleXml XML file
225		* @return mixed \| array if is a valid xml file, false otherwise
226		*/
227	View Code Duplication	public function readForumModule($moduleXml)
228		{
229		$moduleDoc = new DOMDocument();
230		$moduleRes = @$moduleDoc->loadXML($moduleXml);
231		if ($moduleRes) {
232		$activities = $moduleDoc->getElementsByTagName('forum');
233		$currentItem = [];
234		foreach ($activities as $activity) {
235		if ($activity->childNodes->length) {
236		foreach ($activity->childNodes as $item) {
237		$currentItem[$item->nodeName] = $item->nodeValue;
238		}
239		}
240		}
241
242		return $currentItem;
243		}
244
245		return false;
246		}
247
248		/**
249		* Read and validate the resource module XML
250		*
251		* @param resource $moduleXml XML file
252		* @return mixed \| array if is a valid xml file, false otherwise
253		*/
254		public function readResourceModule($moduleXml)
255		{
256		$moduleDoc = new DOMDocument();
257		$moduleRes = @$moduleDoc->loadXML($moduleXml);
258		if ($moduleRes) {
259		$activities = $moduleDoc->getElementsByTagName('resource');
260		$mainActivity = $moduleDoc->getElementsByTagName('activity');
261		$contextId = $mainActivity->item(0)->getAttribute('contextid');
262		$currentItem = [];
263		foreach ($activities as $activity) {
264		if ($activity->childNodes->length) {
265		foreach($activity->childNodes as $item) {
266		$currentItem[$item->nodeName] = $item->nodeValue;
267		}
268		}
269		}
270
271		$currentItem['contextid'] = $contextId;
272		return $currentItem;
273		}
274
275		return false;
276		}
277
278		/**
279		* Read and validate the url module XML
280		*
281		* @param resource $moduleXml XML file
282		* @return mixed \| array if is a valid xml file, false otherwise
283		*/
284	View Code Duplication	public function readUrlModule($moduleXml)
285		{
286		$moduleDoc = new DOMDocument();
287		$moduleRes = @$moduleDoc->loadXML($moduleXml);
288		if ($moduleRes) {
289		$activities = $moduleDoc->getElementsByTagName('url');
290		$currentItem = [];
291		foreach ($activities as $activity) {
292		if ($activity->childNodes->length) {
293		foreach ($activity->childNodes as $item) {
294		$currentItem[$item->nodeName] = $item->nodeValue;
295		}
296		}
297		}
298
299		return $currentItem;
300		}
301
302		return false;
303		}
304
305		/**
306		* Read and validate the quiz module XML
307		*
308		* @param resource $moduleXml XML file
309		* @return mixed \| array if is a valid xml file, false otherwise
310		*/
311		public function readQuizModule($moduleXml)
312		{
313		$moduleDoc = new DOMDocument();
314		$moduleRes = @$moduleDoc->loadXML($moduleXml);
315		if ($moduleRes) {
316		$activities = $moduleDoc->getElementsByTagName('quiz');
317		$currentItem = [];
318		foreach ($activities as $activity) {
319		if ($activity->childNodes->length) {
320		foreach ($activity->childNodes as $item) {
321		$currentItem[$item->nodeName] = $item->nodeValue;
322		}
323		}
324		}
325
326		$questions = $moduleDoc->getElementsByTagName('question_instance');
327
328		$questionList = [];
329		$counter = 0;
330		foreach ($questions as $question) {
331		if ($question->childNodes->length) {
332		foreach ($question->childNodes as $item) {
333		$questionList[$counter][$item->nodeName] = $item->nodeValue;
334		}
335		$counter++;
336		}
337
338		}
339		$currentItem['question_instances'] = $questionList;
340		return $currentItem;
341		}
342
343		return false;
344		}
345
346		/**
347		* Search the current file resource in main Files XML
348		*
349		* @param resource $filesXml XML file
350		* @param int $contextId
351		* @return mixed \| array if is a valid xml file, false otherwise
352		*/
353		public function readMainFilesXml($filesXml, $contextId)
354		{
355		$moduleDoc = new DOMDocument();
356		$moduleRes = @$moduleDoc->loadXML($filesXml);
357		if ($moduleRes) {
358		$activities = $moduleDoc->getElementsByTagName('file');
359		$currentItem = [];
360		foreach ($activities as $activity) {
361		if ($activity->childNodes->length) {
362		$isThisItemThatIWant = false;
363		foreach($activity->childNodes as $item) {
364		if (!$isThisItemThatIWant && $item->nodeName == 'contenthash') {
365		$currentItem['contenthash'] = $item->nodeValue;
366		}
367		if ($item->nodeName == 'contextid' && intval($item->nodeValue) == intval($contextId) && !$isThisItemThatIWant) {
368		$isThisItemThatIWant = true;
369		continue;
370		}
371
372		if ($isThisItemThatIWant && $item->nodeName == 'filename') {
373		$currentItem['filename'] = $item->nodeValue;
374		}
375
376		if ($isThisItemThatIWant && $item->nodeName == 'filesize') {
377		$currentItem['filesize'] = $item->nodeValue;
378		}
379
380		if ($isThisItemThatIWant && $item->nodeName == 'mimetype' && $item->nodeValue == 'document/unknown') {
381		break;
382		}
383
384		if ($isThisItemThatIWant && $item->nodeName == 'mimetype' && $item->nodeValue !== 'document/unknown') {
385		$currentItem['mimetype'] = $item->nodeValue;
386		break 2;
387		}
388		}
389		}
390		}
391
392		return $currentItem;
393		}
394
395		return false;
396		}
397
398		/**
399		* Search the current quiestion resource in main Questions XML
400		*
401		* @param resource $questionsXml XML file
402		* @param int $questionId
403		* @return mixed \| array if is a valid xml file, false otherwise
404		*/
405		public function readMainQuestionsXml($questionsXml, $questionId)
406		{
407		$moduleDoc = new DOMDocument();
408		$moduleRes = @$moduleDoc->loadXML($questionsXml);
409		if ($moduleRes) {
410		$questions = $moduleDoc->getElementsByTagName('question');
411		$currentItem = [];
412		foreach ($questions as $question) {
413		if (intval($question->getAttribute('id')) == $questionId) {
414		if ($question->childNodes->length) {
415		$currentItem['questionid'] = $questionId;
416		$questionType = '';
417		foreach($question->childNodes as $item) {
418		$currentItem[$item->nodeName] = $item->nodeValue;
419		if ($item->nodeName == 'qtype') {
420		$questionType = $item->nodeValue;
421		}
422
423		if ($item->nodeName == 'plugin_qtype_'.$questionType.'_question') {
424		$answer = $item->getElementsByTagName($this->getQuestionTypeAnswersTag($questionType));
425		$currentItem['plugin_qtype_'.$questionType.'_question'] = [];
426		for ($i = 0; $i <= $answer->length - 1; $i++) {
427		$currentItem['plugin_qtype_'.$questionType.'_question'][$i]['answerid'] = $answer->item($i)->getAttribute('id');
428		foreach ($answer->item($i)->childNodes as $properties) {
429		$currentItem['plugin_qtype_'.$questionType.'_question'][$i][$properties->nodeName] = $properties->nodeValue;
430		}
431		}
432
433		$typeValues = $item->getElementsByTagName($this->getQuestionTypeOptionsTag($questionType));
434		for ($i = 0; $i <= $typeValues->length - 1; $i++) {
435		foreach ($typeValues->item($i)->childNodes as $properties) {
436		$currentItem[$questionType.'_values'][$properties->nodeName] = $properties->nodeValue;
437		if ($properties->nodeName == 'sequence') {
438		$sequence = $properties->nodeValue;
439		$sequenceIds = explode(',', $sequence);
440		foreach ($sequenceIds as $qId) {
441		$questionMatch = $this->readMainQuestionsXml($questionsXml, $qId);
442		$currentItem['plugin_qtype_'.$questionType.'_question'][] = $questionMatch;
443		}
444		}
445		}
446		}
447		}
448		}
449		}
450		}
451		}
452
453		$this->traverseArray($currentItem, ['#text', 'question_hints', 'tags']);
454		return $currentItem;
455		}
456
457		return false;
458		}
459
460		/**
461		* return the correct question type options tag
462		*
463		* @param string $questionType name
464		* @return string question type tag
465		*/
466		public function getQuestionTypeOptionsTag($questionType)
467		{
468		switch ($questionType) {
469		case 'match':
470		case 'ddmatch':
471		return 'matchoptions';
472		break;
473		default:
474		return $questionType;
475		break;
476		}
477		}
478
479		/**
480		* return the correct question type answers tag
481		*
482		* @param string $questionType name
483		* @return string question type tag
484		*/
485		public function getQuestionTypeAnswersTag($questionType)
486		{
487		switch ($questionType) {
488		case 'match':
489		case 'ddmatch':
490		return 'match';
491		break;
492		default:
493		return 'answer';
494		break;
495		}
496		}
497
498		/**
499		*
500		* @param string $moodleQuestionType
501		* @return integer Chamilo question type
502		*/
503		public function matchMoodleChamiloQuestionTypes($moodleQuestionType)
504		{
505		switch ($moodleQuestionType) {
506		case 'multichoice':
507		return UNIQUE_ANSWER;
508		break;
509		case 'multianswer':
510		case 'shortanswer':
511		case 'match':
512		return FILL_IN_BLANKS;
513		break;
514		case 'essay':
515		return FREE_ANSWER;
516		break;
517		case 'truefalse':
518		return MULTIPLE_ANSWER_TRUE_FALSE;
519		break;
520		}
521		}
522
523		/**
524		* Process Moodle Answers to Chamilo
525		*
526		* @param string $questionType
527		* @param object $objAnswer
528		* @param array $answerValues
529		* @param integer $position
530		* @return integer db response
531		*/
532		public function processAnswers($questionType, $objAnswer, $answerValues, $position)
533		{
534		switch ($questionType) {
535		case 'multichoice':
536		return $this->processUniqueAnswer($objAnswer, $answerValues, $position) ;
537		break;
538		case 'multianswer':
539		case 'shortanswer':
540		case 'match':
541		break;
542		case 'essay':
543		break;
544		case 'truefalse':
545		break;
546		}
547		}
548
549		/**
550		* Process Chamilo Unique Answer
551		*
552		* @param object $objAnswer
553		* @param array $answerValues
554		* @param integer $position
555		* @return integer db response
556		*/
557	View Code Duplication	public function processUniqueAnswer($objAnswer, $answerValues, $position)
558		{
559		$questionWeighting = $nbrGoodAnswers = 0;
560		$correct = intval($answerValues['fraction']) ? intval($answerValues['fraction']) : 0;
561		$answer = $answerValues['answertext'];
562		$comment = $answerValues['feedback'];
563		$weighting = $answerValues['fraction'];
564		$weighting = abs($weighting);
565		if ($weighting > 0) {
566		$questionWeighting += $weighting;
567		}
568		$goodAnswer = $correct ? true : false;
569
570		$objAnswer->createAnswer(
571		$answer,
572		$goodAnswer,
573		$comment,
574		$weighting,
575		$position,
576		null,
577		null,
578		''
579		);
580
581		return $questionWeighting;
582		}
583
584		/**
585		* Process Chamilo FillBlanks
586		*
587		* @param object $objAnswer
588		* @param array $answerValues
589		* @param integer $position
590		* @return integer db response
591		*/
592	View Code Duplication	public function processFillBlanks($objAnswer, $answerValues, $position)
593		{
594		$questionWeighting = $nbrGoodAnswers = 0;
595		$correct = intval($answerValues['fraction']) ? intval($answerValues['fraction']) : 0;
596		$answer = $answerValues['answertext'];
597		$comment = $answerValues['feedback'];
598		$weighting = $answerValues['fraction'];
599		$weighting = abs($weighting);
600		if ($weighting > 0) {
601		$questionWeighting += $weighting;
602		}
603		$goodAnswer = $correct ? true : false;
604
605		$objAnswer->createAnswer(
606		$answer,
607		$goodAnswer,
608		$comment,
609		$weighting,
610		$position,
611		null,
612		null,
613		''
614		);
615
616		return $questionWeighting;
617		}
618
619
620		/**
621		* Litle utility to delete the unuseful tags
622		*
623		* @param $array
624		* @param $keys
625		*/
626		public function traverseArray(&$array, $keys) {
627		foreach ($array as $key => &$value) {
628		if (is_array($value)) {
629		$this->traverseArray($value, $keys);
630		} else {
631		if (in_array($key, $keys)){
632		unset($array[$key]);
633		}
634		}
635		}
636		}
637
638		}

chamilo / chamilo-lms

Pull Request — 1.11.x (#1285)

MoodleImport::traverseArray() A

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Duplication

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