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454 lines
16 KiB
454 lines
16 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Exercise administration
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* This script allows to manage (create, modify) an exercise and its questions
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*
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* Following scripts are includes for a best code understanding :
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*
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* - exercise.class.php : for the creation of an Exercise object
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* - question.class.php : for the creation of a Question object
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* - answer.class.php : for the creation of an Answer object
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* - exercise.lib.php : functions used in the exercise tool
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* - exercise_admin.inc.php : management of the exercise
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* - question_admin.inc.php : management of a question (statement & answers)
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* - statement_admin.inc.php : management of a statement
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* - question_list_admin.inc.php : management of the question list
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*
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* Main variables used in this script :
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*
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* - $is_allowedToEdit : set to 1 if the user is allowed to manage the exercise
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* - $objExercise : exercise object
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* - $objQuestion : question object
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* - $objAnswer : answer object
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* - $aType : array with answer types
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* - $exerciseId : the exercise ID
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* - $picturePath : the path of question pictures
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* - $newQuestion : ask to create a new question
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* - $modifyQuestion : ID of the question to modify
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* - $editQuestion : ID of the question to edit
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* - $submitQuestion : ask to save question modifications
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* - $cancelQuestion : ask to cancel question modifications
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* - $deleteQuestion : ID of the question to delete
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* - $moveUp : ID of the question to move up
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* - $moveDown : ID of the question to move down
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* - $modifyExercise : ID of the exercise to modify
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* - $submitExercise : ask to save exercise modifications
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* - $cancelExercise : ask to cancel exercise modifications
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* - $modifyAnswers : ID of the question which we want to modify answers for
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* - $cancelAnswers : ask to cancel answer modifications
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* - $buttonBack : ask to go back to the previous page in answers of type "Fill in blanks"
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*
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* @package chamilo.exercise
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* @author Olivier Brouckaert
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* Modified by Hubert Borderiou 21-10-2011 Question by category
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*/
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use ChamiloSession as Session;
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require_once '../inc/global.inc.php';
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$current_course_tool = TOOL_QUIZ;
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$this_section = SECTION_COURSES;
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// Access control
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api_protect_course_script(true);
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$is_allowedToEdit = api_is_allowed_to_edit(null,true);
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$sessionId = api_get_session_id();
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if (!$is_allowedToEdit) {
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api_not_allowed(true);
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}
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/* stripslashes POST data */
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if($_SERVER['REQUEST_METHOD'] == 'POST') {
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foreach($_POST as $key=>$val) {
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if(is_string($val)) {
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$_POST[$key]=stripslashes($val);
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} elseif(is_array($val)) {
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foreach($val as $key2=>$val2) {
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$_POST[$key][$key2]=stripslashes($val2);
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}
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}
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$GLOBALS[$key]=$_POST[$key];
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}
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}
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if (empty($exerciseId)) {
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$exerciseId = isset($_GET['exerciseId']) ? intval($_GET['exerciseId']):'0';
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}
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if (empty($newQuestion)) {
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$newQuestion = isset($_GET['newQuestion']) ? $_GET['newQuestion'] : 0;
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}
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if (empty($modifyAnswers)) {
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$modifyAnswers = isset($_GET['modifyAnswers']) ? $_GET['modifyAnswers'] : 0;
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}
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if (empty($editQuestion)) {
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$editQuestion = isset($_GET['editQuestion']) ? $_GET['editQuestion'] : 0;
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}
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if (empty($modifyQuestion)) {
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$modifyQuestion = isset($_GET['modifyQuestion']) ? $_GET['modifyQuestion'] : 0;
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}
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if (empty($deleteQuestion)) {
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$deleteQuestion = isset($_GET['deleteQuestion']) ? $_GET['deleteQuestion'] : 0;
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}
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$clone_question = isset($_REQUEST['clone_question']) ? $_REQUEST['clone_question'] : 0;
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if (empty($questionId)) {
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$questionId = isset($_SESSION['questionId']) ? $_SESSION['questionId'] : 0;
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}
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if (empty($modifyExercise)) {
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$modifyExercise = isset($_GET['modifyExercise']) ? $_GET['modifyExercise'] : null;
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}
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$fromExercise = isset($fromExercise) ? $fromExercise : null;
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$cancelExercise = isset($cancelExercise) ? $cancelExercise : null;
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$cancelAnswers = isset($cancelAnswers) ? $cancelAnswers : null;
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$modifyIn = isset($modifyIn) ? $modifyIn : null;
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$cancelQuestion = isset($cancelQuestion) ? $cancelQuestion : null;
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/* Cleaning all incomplete attempts of the admin/teacher to avoid weird problems
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when changing the exercise settings, number of questions, etc */
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Event::delete_all_incomplete_attempts(
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api_get_user_id(),
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$exerciseId,
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api_get_course_int_id(),
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api_get_session_id()
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);
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// get from session
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$objExercise = isset($_SESSION['objExercise']) ? $_SESSION['objExercise'] : null;
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$objQuestion = isset($_SESSION['objQuestion']) ? $_SESSION['objQuestion'] : null;
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if (isset($_REQUEST['convertAnswer'])) {
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$objQuestion = $objQuestion->swapSimpleAnswerTypes();
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$_SESSION['objQuestion'] = $objQuestion;
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}
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$objAnswer = isset($_SESSION['objAnswer']) ? $_SESSION['objAnswer'] : null;
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// document path
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$documentPath = api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
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// picture path
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$picturePath = $documentPath.'/images';
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// audio path
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$audioPath = $documentPath.'/audio';
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// the 5 types of answers
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$aType = array(
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get_lang('UniqueSelect'),
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get_lang('MultipleSelect'),
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get_lang('FillBlanks'),
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get_lang('Matching'),
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get_lang('FreeAnswer')
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);
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// tables used in the exercise tool
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if (!empty($_GET['action']) && $_GET['action'] == 'exportqti2' && !empty($_GET['questionId'])) {
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require_once 'export/qti2/qti2_export.php';
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$export = export_question_qti($_GET['questionId'], true);
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$qid = (int)$_GET['questionId'];
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$archive_path = api_get_path(SYS_ARCHIVE_PATH);
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$temp_dir_short = uniqid();
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$temp_zip_dir = $archive_path."/".$temp_dir_short;
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if (!is_dir($temp_zip_dir)) {
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mkdir($temp_zip_dir, api_get_permissions_for_new_directories());
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}
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$temp_zip_file = $temp_zip_dir."/".api_get_unique_id().".zip";
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$temp_xml_file = $temp_zip_dir."/qti2export_".$qid.'.xml';
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file_put_contents($temp_xml_file, $export);
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$zip_folder = new PclZip($temp_zip_file);
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$zip_folder->add($temp_xml_file, PCLZIP_OPT_REMOVE_ALL_PATH);
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$name = 'qti2_export_'.$qid.'.zip';
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DocumentManager::file_send_for_download($temp_zip_file, true, $name);
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unlink($temp_zip_file);
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unlink($temp_xml_file);
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rmdir($temp_zip_dir);
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//DocumentManager::string_send_for_download($export,true,'qti2export_q'.$_GET['questionId'].'.xml');
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exit; //otherwise following clicks may become buggy
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}
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// Exercise object creation.
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if (!is_object($objExercise)) {
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// construction of the Exercise object
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$objExercise = new Exercise();
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// creation of a new exercise if wrong or not specified exercise ID
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if ($exerciseId) {
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$objExercise->read($exerciseId);
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}
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// saves the object into the session
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Session::write('objExercise', $objExercise);
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}
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// Exercise can be edited in their course.
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if ($objExercise->sessionId != $sessionId) {
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api_not_allowed(true);
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/*header('Location: '.api_get_path(WEB_CODE_PATH).'exercice/exercise.php?'.api_get_cidreq());
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exit;*/
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}
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// doesn't select the exercise ID if we come from the question pool
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if (!$fromExercise) {
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// gets the right exercise ID, and if 0 creates a new exercise
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if (!$exerciseId = $objExercise->selectId()) {
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$modifyExercise='yes';
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}
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}
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$nbrQuestions = $objExercise->selectNbrQuestions();
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// Question object creation.
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if ($editQuestion || $newQuestion || $modifyQuestion || $modifyAnswers) {
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if ($editQuestion || $newQuestion) {
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// reads question data
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if ($editQuestion) {
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// question not found
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if (!$objQuestion = Question::read($editQuestion)) {
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api_not_allowed();
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}
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// saves the object into the session
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Session::write('objQuestion', $objQuestion);
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}
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}
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// checks if the object exists
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if (is_object($objQuestion)) {
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// gets the question ID
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$questionId = $objQuestion->selectId();
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}
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}
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// if cancelling an exercise
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if ($cancelExercise) {
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// existing exercise
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if ($exerciseId) {
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unset($modifyExercise);
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} else {
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// new exercise
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// goes back to the exercise list
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header('Location: '.api_get_path(WEB_CODE_PATH).'exercice/exercise.php?'.api_get_cidreq());
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exit();
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}
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}
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// if cancelling question creation/modification
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if ($cancelQuestion) {
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// if we are creating a new question from the question pool
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if (!$exerciseId && !$questionId) {
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// goes back to the question pool
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header('Location: question_pool.php');
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exit();
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} else {
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// goes back to the question viewing
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$editQuestion=$modifyQuestion;
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unset($newQuestion,$modifyQuestion);
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}
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}
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if (!empty($clone_question) && !empty($objExercise->id)) {
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$old_question_obj = Question::read($clone_question);
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$old_question_obj->question = $old_question_obj->question.' - '.get_lang('Copy');
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$new_id = $old_question_obj->duplicate();
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$new_question_obj = Question::read($new_id);
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$new_question_obj->addToList($exerciseId);
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// This should be moved to the duplicate function
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$new_answer_obj = new Answer($clone_question);
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$new_answer_obj->read();
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$new_answer_obj->duplicate($new_id);
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//Reloading tne $objExercise obj
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$objExercise->read($objExercise->id);
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header('Location: admin.php?'.api_get_cidreq().'&exerciseId='.$objExercise->id);
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exit;
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}
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// if cancelling answer creation/modification
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if ($cancelAnswers) {
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// goes back to the question viewing
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$editQuestion=$modifyAnswers;
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unset($modifyAnswers);
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}
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$nameTools = null;
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// modifies the query string that is used in the link of tool name
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if ($editQuestion || $modifyQuestion || $newQuestion || $modifyAnswers) {
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$nameTools = get_lang('QuestionManagement');
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}
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if (isset($_SESSION['gradebook'])){
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$gradebook= $_SESSION['gradebook'];
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}
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if (!empty($gradebook) && $gradebook=='view') {
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$interbreadcrumb[]= array(
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'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
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'name' => get_lang('ToolGradebook')
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);
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}
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$interbreadcrumb[] = array("url" => "exercise.php","name" => get_lang('Exercises'));
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if (isset($_GET['newQuestion']) || isset($_GET['editQuestion']) ) {
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$interbreadcrumb[] = array("url" => "admin.php?exerciseId=".$objExercise->id, "name" => $objExercise->name);
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} else {
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$interbreadcrumb[] = array("url" => "#", "name" => $objExercise->name);
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}
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// shows a link to go back to the question pool
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if (!$exerciseId && $nameTools != get_lang('ExerciseManagement')){
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$interbreadcrumb[]=array(
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"url" => api_get_path(WEB_CODE_PATH)."exercice/question_pool.php?fromExercise=$fromExercise&".api_get_cidreq(),
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"name" => get_lang('QuestionPool')
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);
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}
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// if the question is duplicated, disable the link of tool name
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if ($modifyIn == 'thisExercise') {
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if($buttonBack) {
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$modifyIn='allExercises';
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} else {
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$noPHP_SELF=true;
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}
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}
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$htmlHeadXtra[] = '<script>
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function multiple_answer_true_false_onchange(variable) {
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var result = variable.checked;
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var id = variable.id;
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var weight_id = "weighting_" + id;
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var array_result=new Array();
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array_result[1]="1";
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array_result[0]= "-0.50";
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array_result[-1]= "0";
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if (result) {
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result = 1;
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} else {
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result = 0;
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}
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document.getElementById(weight_id).value = array_result[result];
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}
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</script>';
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$htmlHeadXtra[] = api_get_js('jqueryui-touch-punch/jquery.ui.touch-punch.min.js');
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$htmlHeadXtra[] = api_get_js('jquery.jsPlumb.all.js');
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$template = new Template();
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$htmlHeadXtra[] = $template->fetch('default/exercise/submit.js.tpl');
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$htmlHeadXtra[] = api_get_js('d3/jquery.xcolor.js');
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$htmlHeadXtra[] = '<link rel="stylesheet" href="' . api_get_path(WEB_LIBRARY_JS_PATH) . 'hotspot/css/hotspot.css">';
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$htmlHeadXtra[] = '<script src="' . api_get_path(WEB_LIBRARY_JS_PATH) . 'hotspot/js/hotspot.js"></script>';
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Display::display_header($nameTools,'Exercise');
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/*
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if ($objExercise->exercise_was_added_in_lp) {
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if ($objExercise->force_edit_exercise_in_lp == true) {
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Display::display_warning_message(get_lang('ForceEditingExerciseInLPWarning'));
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} else {
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Display::display_warning_message(get_lang('EditingExerciseCauseProblemsInLP'));
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}
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}*/
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// If we are in a test
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$inATest = isset($exerciseId) && $exerciseId > 0;
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if ($inATest) {
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echo '<div class="actions">';
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if (isset($_GET['hotspotadmin']) || isset($_GET['newQuestion']) || isset($_GET['myid']))
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/admin.php?exerciseId='.$exerciseId.'&'.api_get_cidreq().'">'.
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Display::return_icon('back.png', get_lang('GoBackToQuestionList'),'',ICON_SIZE_MEDIUM).'</a>';
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if (!isset($_GET['hotspotadmin']) && !isset($_GET['newQuestion']) && !isset($_GET['myid']) && !isset($_GET['editQuestion'])) {
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/exercise.php?'.api_get_cidreq().'">'.
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Display::return_icon('back.png', get_lang('BackToExercisesList'),'',ICON_SIZE_MEDIUM).'</a>';
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}
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/overview.php?'.api_get_cidreq().'&exerciseId='.$objExercise->id.'&preview=1">'.
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Display::return_icon('preview_view.png', get_lang('Preview'),'',ICON_SIZE_MEDIUM).'</a>';
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echo Display::url(
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Display::return_icon('test_results.png', get_lang('Results'),'',ICON_SIZE_MEDIUM),
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api_get_path(WEB_CODE_PATH).'exercice/exercise_report.php?'.api_get_cidreq().'&exerciseId='.$objExercise->id
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);
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/exercise_admin.php?'.api_get_cidreq().'&modifyExercise=yes&exerciseId='.$objExercise->id.'">'.
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Display::return_icon('settings.png', get_lang('ModifyExercise'),'',ICON_SIZE_MEDIUM).'</a>';
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$maxScoreAllQuestions = 0;
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if (!empty($objExercise->questionList)) {
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foreach ($objExercise->questionList as $q) {
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$question = Question::read($q);
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if ($question) {
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$maxScoreAllQuestions += $question->selectWeighting();
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}
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}
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}
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echo '</div>';
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echo '<div class="alert alert-info">'.sprintf(get_lang('XQuestionsWithTotalScoreY'), $objExercise->selectNbrQuestions(), $maxScoreAllQuestions).'</div>';
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} else if (isset($_GET['newQuestion'])) {
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// we are in create a new question from question pool not in a test
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echo '<div class="actions">';
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/admin.php?'.api_get_cidreq().'">'.
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Display::return_icon('back.png', get_lang('GoBackToQuestionList'),'',ICON_SIZE_MEDIUM).'</a>';
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echo '</div>';
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} else {
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// If we are in question_pool but not in an test, go back to question create in pool
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echo '<div class="actions">';
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echo '<a href="'.api_get_path(WEB_CODE_PATH).'exercice/question_pool.php?'.api_get_cidreq().'">'.
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Display::return_icon('back.png', get_lang('GoBackToQuestionList'),'',ICON_SIZE_MEDIUM).
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'</a>';
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echo '</div>';
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}
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if (isset($_GET['message'])) {
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if (in_array($_GET['message'], array('ExerciseStored', 'ItemUpdated', 'ItemAdded'))) {
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Display::display_confirmation_message(get_lang($_GET['message']));
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}
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}
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if ($newQuestion || $editQuestion) {
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// Question management
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$type = isset($_REQUEST['answerType']) ? Security::remove_XSS($_REQUEST['answerType']) : null;
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echo '<input type="hidden" name="Type" value="'.$type.'" />';
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if ($newQuestion == 'yes') {
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$objExercise->edit_exercise_in_lp = true;
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}
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require 'question_admin.inc.php';
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}
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if (isset($_GET['hotspotadmin'])) {
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if (!is_object($objQuestion)) {
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$objQuestion = Question :: read($_GET['hotspotadmin']);
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}
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if (!$objQuestion) {
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api_not_allowed();
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}
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require 'hotspot_admin.inc.php';
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}
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if (!$newQuestion && !$modifyQuestion && !$editQuestion && !isset($_GET['hotspotadmin'])) {
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// question list management
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require 'question_list_admin.inc.php';
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}
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// if we are in question authoring, display warning to user is feedback not shown at the end of the test -ref #6619
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// this test to display only message in the question authoring page and not in the question list page too
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// if (is_object($objQuestion) && $objExercise->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_EXAM && ($newQuestion || $modifyQuestion || $editQuestion)) {
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if ($objExercise->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_EXAM) {
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Display::display_normal_message(get_lang("TestFeedbackNotShown"));
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}
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Session::write('objExercise', $objExercise);
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Session::write('objQuestion', $objQuestion);
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Session::write('objAnswer', $objAnswer);
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Display::display_footer();
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