/**
* Check if user is an author
* @access public
* @param $course_id: optional.
* if > 0, check whether the user is the author of the course with $course_id
* else if = 0 or is not given, check whether the user has author privilege
* @return true : if is an author
* false : if not an author
* @author Cindy Qi Li
*/
public function isAuthor($course_id = 0)
{
if ($course_id == 0) {
$row = $this->userDAO->getUserByID($this->userID);
return $row['is_author'];
} else {
include_once TR_INCLUDE_PATH . 'classes/DAO/CoursesDAO.class.php';
$coursesDAO = new CoursesDAO();
$course_row = $coursesDAO->get($course_id);
return $course_row['user_id'] == $this->userID;
}
}
$use_a4a = false;
if (isset($_REQUEST['to_a4a'])) {
$use_a4a = true;
}
// require_once(TR_INCLUDE_PATH.'vitals.inc.php');
// $course_id = $_SESSION['course_id'];
}
}
//load the following after vitals is included
require_once TR_INCLUDE_PATH . 'classes/testQuestions.class.php';
require_once TR_INCLUDE_PATH . 'classes/A4a/A4aExport.class.php';
require_once TR_INCLUDE_PATH . 'classes/Weblinks/Weblinks.class.php';
require_once TR_INCLUDE_PATH . 'classes/Weblinks/WeblinksExport.class.php';
$use_cc = true;
$coursesDAO = new CoursesDAO();
$course_row = $coursesDAO->get($course_id);
$contentManager = new ContentManager($course_id);
$instructor_id = $course_row['user_id'];
$course_desc = htmlspecialchars($course_row['description'], ENT_QUOTES, 'UTF-8');
$course_title = htmlspecialchars($course_row['title'], ENT_QUOTES, 'UTF-8');
$course_language = $course_row['primary_language'];
$courseLanguage =& $languageManager->getLanguage($course_language);
//If course language cannot be found, use UTF-8 English
//@author harris, Oct 30,2008
if (!isset($courseLanguage) || $courseLanguage == null) {
$courseLanguage =& $languageManager->getLanguage(DEFAULT_LANGUAGE_CODE);
}
$course_language_charset = $courseLanguage->getCharacterSet();
$course_language_code = $courseLanguage->getCode();
require_once TR_INCLUDE_PATH . 'classes/zipfile.class.php';
/* for zipfile */
}
/* extract the entire archive into TR_COURSE_CONTENT . import/$course using the call back function to filter out php files */
error_reporting(0);
$archive = new PclZip($_FILES['file']['tmp_name']);
if ($archive->extract(PCLZIP_OPT_PATH, $import_path, PCLZIP_CB_PRE_EXTRACT, 'preImportCallBack') == 0) {
$msg->addError('IMPORT_FAILED');
echo 'Error : ' . $archive->errorInfo(true);
FileUtility::clr_dir($import_path);
header('Location: question_db.php?_course_id=' . $_course_id);
exit;
}
error_reporting(TR_ERROR_REPORTING);
}
/* get the course's max_quota */
$coursesDAO = new CoursesDAO();
$q_row = $coursesDAO->get($_course_id);
if ($q_row['max_quota'] != TR_COURSESIZE_UNLIMITED) {
$zip_size_limit = $MaxCourseSize;
$totalBytes = FileUtility::dirsize($import_path);
$total_after = $zip_size_limit - $totalBytes;
if (is_dir(TR_CONTENT_DIR . $_course_id . '/')) {
$course_total = FileUtility::dirsize(TR_CONTENT_DIR . $_course_id . '/');
$total_after -= $course_total;
}
if ($total_after < 0) {
/* remove the content dir, since there's no space for it */
$errors = array('NO_CONTENT_SPACE', number_format(-1 * ($total_after / TR_KBYTE_SIZE), 2));
$msg->addError($errors);
// Clean up import path and inserted course row
FileUtility::clr_dir($import_path);
header('Location: index.php?_course_id=' . $_course_id);
$access = 'public';
}
if ($_course_id > 0) {
// update an existing course
$coursesDAO->UpdateField($_course_id, 'title', $_POST['title']);
$coursesDAO->UpdateField($_course_id, 'category_id', $_POST['category_id']);
$coursesDAO->UpdateField($_course_id, 'primary_language', $_POST['pri_lang']);
$coursesDAO->UpdateField($_course_id, 'description', $_POST['description']);
$coursesDAO->UpdateField($_course_id, 'copyright', $_POST['copyright']);
$coursesDAO->UpdateField($_course_id, 'access', $access);
$msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
} else {
// create a new course
if ($course_id = $coursesDAO->Create($_SESSION['user_id'], 'top', $access, $_POST['title'], $_POST['description'], null, null, null, $_POST['copyright'], $_POST['pri_lang'], null, null)) {
$msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
header('Location: ' . TR_BASE_HREF . 'home/course/index.php?_course_id=' . $course_id);
exit;
}
}
}
}
// display
if ($_course_id > 0) {
$savant->assign('course_id', $_course_id);
$savant->assign('course_row', $coursesDAO->get($_course_id));
}
global $onload;
$onload = "document.form.title.focus();";
require TR_INCLUDE_PATH . 'header.inc.php';
$savant->display('home/course/course_property.tmpl.php');
require TR_INCLUDE_PATH . 'footer.inc.php';
/**
* Export test
* @param int test id
* @param string the test title
* @param ref [OPTIONAL] zip object reference
* @param array [OPTIONAL] list of already added files.
*/
function test_qti_export($tid, $test_title = '', $zipfile = null)
{
global $_course_id;
require_once TR_INCLUDE_PATH . 'classes/DAO/CoursesDAO.class.php';
require_once TR_INCLUDE_PATH . 'classes/DAO/TestsDAO.class.php';
require_once TR_INCLUDE_PATH . 'classes/DAO/TestsQuestionsAssocDAO.class.php';
require_once TR_INCLUDE_PATH . 'classes/zipfile.class.php';
// for zipfile
require_once TR_INCLUDE_PATH . 'classes/XML/XML_HTMLSax/XML_HTMLSax.php';
// for XML_HTMLSax
require_once TR_INCLUDE_PATH . 'lib/html_resource_parser.inc.php';
// for get_html_resources()
global $savant, $db, $languageManager, $test_zipped_files, $test_files, $use_cc;
global $course_id;
$coursesDAO = new CoursesDAO();
$course_row = $coursesDAO->get($_course_id);
$course_language = $course_row['primary_language'];
$courseLanguage =& $languageManager->getLanguage($course_language);
$course_language_charset = $courseLanguage->getCharacterSet();
$imported_files;
$zipflag = false;
if ($zipfile == null) {
$zipflag = true;
}
if ($test_zipped_files == null) {
$test_zipped_files = array();
}
if ($zipflag) {
$zipfile = new zipfile();
$zipfile->create_dir('resources/');
// for all the dependency files
}
$resources = array();
$dependencies = array();
// don't want to sort it, i want the same order out.
// asort($question_ids);
//TODO: Merge the following 2 sqls together.
//Randomized or not, export all the questions that are associated with it.
// $sql = "SELECT TQ.question_id, TQA.weight FROM ".TABLE_PREFIX."tests_questions TQ INNER JOIN ".TABLE_PREFIX."tests_questions_assoc TQA USING (question_id) WHERE TQ.course_id=$_SESSION[course_id] AND TQA.test_id=$tid ORDER BY TQA.ordering, TQA.question_id";
// $result = mysql_query($sql, $db);
// $question_ids = array();
//
// if (is_array($question_rows)){
// foreach ($question_rows as $question_row) $question_ids[] = $question_row['question_id'];
// }
//
// //No questions in the test
// if (sizeof($question_ids)==0){
// return;
// }
//
// $question_ids_delim = implode(',',$question_ids);
//
// //$sql = "SELECT * FROM ".TABLE_PREFIX."tests_questions WHERE course_id=$_SESSION[course_id] AND question_id IN($question_ids_delim)";
// $sql = "SELECT TQ.*, TQA.weight, TQA.test_id FROM ".TABLE_PREFIX."tests_questions TQ INNER JOIN ".TABLE_PREFIX."tests_questions_assoc TQA USING (question_id) WHERE TQA.test_id=$tid AND TQ.question_id IN($question_ids_delim) ORDER BY TQA.ordering, TQA.question_id";
//
// $result = mysql_query($sql, $db);
// while ($row = mysql_fetch_assoc($result)) {
$testsQuestionsAssocDAO = new TestsQuestionsAssocDAO();
$question_rows = $testsQuestionsAssocDAO->getByTestID($tid);
if (!is_array($question_rows)) {
return false;
} else {
foreach ($question_rows as $row) {
$obj = TestQuestions::getQuestion($row['type']);
$local_xml = '';
$local_xml = $obj->exportQTI($row, $course_language_charset, '1.2.1');
$local_dependencies = array();
$text_blob = implode(' ', $row);
$local_dependencies = get_html_resources($text_blob);
$dependencies = array_merge($dependencies, $local_dependencies);
$xml = $xml . "\n\n" . $local_xml;
}
}
//files that are found inside the test; used by print_organization(), to add all test files into QTI/ folder.
$test_files = $dependencies;
$resources[] = array('href' => 'tests_' . $tid . '.xml', 'dependencies' => array_keys($dependencies));
$xml = trim($xml);
//get test title
// $sql = "SELECT title FROM ".TABLE_PREFIX."tests WHERE test_id = $tid";
// $result = mysql_query($sql, $db);
// $row = mysql_fetch_array($result);
$testsDAO = new TestsDAO();
$row = $testsDAO->get($tid);
//TODO: wrap around xml now
$savant->assign('xml_content', $xml);
$savant->assign('title', htmlspecialchars($row['title'], ENT_QUOTES, 'UTF-8'));
$savant->assign('num_takes', $row['num_takes']);
$savant->assign('use_cc', $use_cc);
$xml = $savant->fetch('tests/test_questions/wrapper.tmpl.php');
$xml_filename = 'tests_' . $tid . '.xml';
if (!$use_cc) {
$zipfile->add_file($xml, $xml_filename);
} else {
$zipfile->add_file($xml, 'QTI/' . $xml_filename);
}
// add any dependency files:
if (!$use_cc) {
foreach ($dependencies as $resource => $resource_server_path) {
//add this file in if it's not already in the zip package
if (!in_array($resource_server_path, $test_zipped_files)) {
$zipfile->add_file(@file_get_contents($resource_server_path), 'resources/' . $resource, filemtime($resource_server_path));
$test_zipped_files[] = $resource_server_path;
}
}
}
if ($zipflag) {
// construct the manifest xml
$savant->assign('resources', $resources);
$savant->assign('dependencies', array_keys($dependencies));
$savant->assign('encoding', $course_language_charset);
$savant->assign('title', $test_title);
$savant->assign('xml_filename', $xml_filename);
$manifest_xml = $savant->fetch('tests/test_questions/manifest_qti_1p2.tmpl.php');
$zipfile->add_file($manifest_xml, 'imsmanifest.xml');
$zipfile->close();
$filename = str_replace(array(' ', ':'), '_', $course_row['title'] . '-' . $test_title . '-' . date('Ymd'));
$zipfile->send_file($filename);
exit;
}
$return_array[$xml_filename] = array_keys($dependencies);
return $return_array;
//done
}
/************************************************************************/
/* Copyright (c) 2010 */
/* Inclusive Design Institute */
/* */
/* This program is free software. You can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation. */
/************************************************************************/
define('TR_INCLUDE_PATH', '../../include/');
require TR_INCLUDE_PATH . 'vitals.inc.php';
require_once TR_INCLUDE_PATH . 'classes/DAO/CoursesDAO.class.php';
require_once TR_INCLUDE_PATH . 'classes/Utility.class.php';
global $_course_id;
Utility::authenticate(TR_PRIV_ISAUTHOR_OF_CURRENT_COURSE);
$coursesDAO = new CoursesDAO();
$course_info = $coursesDAO->get($_course_id);
if (isset($_POST['submit_no'])) {
$msg->addFeedback('CANCELLED');
header('Location: ' . TR_BASE_HREF . 'home/course/index.php?_course_id=' . $_course_id);
exit;
} else {
if (isset($_POST['step']) && $_POST['step'] == 2 && isset($_POST['submit_yes'])) {
$coursesDAO->Delete($_course_id);
$msg->addFeedback('ACTION_COMPLETED_SUCCESSFULLY');
header('Location: ' . TR_BASE_HREF . 'home/index.php');
exit;
}
}
require TR_INCLUDE_PATH . 'header.inc.php';
if (!isset($_POST['step'])) {
$hidden_vars['step'] = 1;
