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1106 lines
42 KiB
1106 lines
42 KiB
<?php
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// $Id: exercice_submit.php 21656 2009-06-28 01:01:54Z iflorespaz $
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos SPRL
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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Copyright (c) various contributors
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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* Exercise submission
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* This script allows to run an exercise. According to the exercise type, questions
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* can be on an unique page, or one per page with a Next button.
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*
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* One exercise may contain different types of answers (unique or multiple selection,
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* matching, fill in blanks, free answer, hot-spot).
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*
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* Questions are selected randomly or not.
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*
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* When the user has answered all questions and clicks on the button "Ok",
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* it goes to exercise_result.php
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*
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* Notice : This script is also used to show a question before modifying it by
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* the administrator
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* @package dokeos.exercise
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* @author Olivier Brouckaert
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* @author Julio Montoya multiple fill in blank option added
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* @version $Id: exercice_submit.php 21656 2009-06-28 01:01:54Z iflorespaz $
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*/
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require_once 'exercise.class.php';
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require_once 'question.class.php';
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require_once 'answer.class.php';
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require_once 'exercise.lib.php';
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// debug var. Set to 0 to hide all debug display. Set to 1 to display debug messages.
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$debug = 0;
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/*
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// answer types
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define('UNIQUE_ANSWER', 1);
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define('MULTIPLE_ANSWER', 2);
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define('FILL_IN_BLANKS', 3);
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define('MATCHING', 4);
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define('FREE_ANSWER', 5);
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define('HOT_SPOT', 6);
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define('HOT_SPOT_ORDER', 7);
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*/
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// name of the language file that needs to be included
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$language_file = 'exercice';
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require_once '../inc/global.inc.php';
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$this_section = SECTION_COURSES;
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/* ------------ ACCESS RIGHTS ------------ */
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// notice for unauthorized people.
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api_protect_course_script(true);
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require_once api_get_path(LIBRARY_PATH) . 'text.lib.php';
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$is_allowedToEdit = api_is_allowed_to_edit();
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$_configuration['live_exercise_tracking'] = true;
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$stat_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
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$exercice_attemp_table = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
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$TBL_EXERCICE_QUESTION = Database :: get_course_table(TABLE_QUIZ_TEST_QUESTION);
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$TBL_EXERCICES = Database :: get_course_table(TABLE_QUIZ_TEST);
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$TBL_QUESTIONS = Database :: get_course_table(TABLE_QUIZ_QUESTION);
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$TBL_REPONSES = Database :: get_course_table(TABLE_QUIZ_ANSWER);
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// general parameters passed via POST/GET
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if (empty ($origin)) {
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$origin = $_REQUEST['origin'];
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}
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if (empty ($learnpath_id)) {
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$learnpath_id = Security::remove_XSS($_REQUEST['learnpath_id']);
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}
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if (empty ($learnpath_item_id)) {
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$learnpath_item_id = Security::remove_XSS($_REQUEST['learnpath_item_id']);
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}
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if (empty ($formSent)) {
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$formSent = $_REQUEST['formSent'];
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}
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if (empty ($exerciseResult)) {
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$exerciseResult = $_REQUEST['exerciseResult'];
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}
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if (empty ($exerciseResultCoordinates)) {
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$exerciseResultCoordinates = $_REQUEST['exerciseResultCoordinates'];
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}
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if (empty ($exerciseType)) {
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$exerciseType = $_REQUEST['exerciseType'];
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}
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if (empty ($exerciseId)) {
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$exerciseId = Database::escape_string(intval($_REQUEST['exerciseId']));
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}
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if (empty ($choice)) {
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$choice = $_REQUEST['choice'];
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}
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if (empty ($_REQUEST['choice'])) {
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$choice = $_REQUEST['choice2'];
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}
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if (empty ($questionNum)) {
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$questionNum = Database :: escape_string($_REQUEST['questionNum']);
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}
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if (empty ($nbrQuestions)) {
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$nbrQuestions = Database :: escape_string($_REQUEST['nbrQuestions']);
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}
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if (empty ($buttonCancel)) {
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$buttonCancel = $_REQUEST['buttonCancel'];
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}
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$error = '';
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if (!isset ($exerciseType)) {
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$exe_start_date = time();
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$_SESSION['exercice_start_date'] = $exe_start_date;
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}
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// if the user has clicked on the "Cancel" button
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if ($buttonCancel) {
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// returns to the exercise list
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header("Location: exercice.php?origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id");
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exit ();
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}
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if ($origin == 'learnpath' && isset ($_GET['not_multiple_attempt']) && $_GET['not_multiple_attempt'] == strval(intval($_GET['not_multiple_attempt']))) {
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$not_multiple_attempt = (int) $_GET['not_multiple_attempt'];
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if ($not_multiple_attempt === 1) {
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require_once '../inc/reduced_header.inc.php';
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echo '<div style="height:10px"> </div>';
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Display :: display_warning_message(get_lang('ReachedOneAttempt'));
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exit;
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}
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}
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if ($origin == 'builder') {
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/*******************************/
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/* Clears the exercise session */
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/*******************************/
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if (isset ($_SESSION['objExercise'])) {
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api_session_unregister('objExercise');
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unset ($objExercise);
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}
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if (isset ($_SESSION['objQuestion'])) {
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api_session_unregister('objQuestion');
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unset ($objQuestion);
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}
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if (isset ($_SESSION['objAnswer'])) {
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api_session_unregister('objAnswer');
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unset ($objAnswer);
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}
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if (isset ($_SESSION['questionList'])) {
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api_session_unregister('questionList');
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unset ($questionList);
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}
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if (isset ($_SESSION['newquestionList'])) {
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api_session_unregister('newquestionList');
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unset ($newquestionList);
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}
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if (isset ($_SESSION['exerciseResult'])) {
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api_session_unregister('exerciseResult');
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unset ($exerciseResult);
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}
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if (isset ($_SESSION['exerciseResultCoordinates'])) {
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api_session_unregister('exerciseResultCoordinates');
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unset ($exerciseResultCoordinates);
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}
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}
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$safe_lp_id = ($learnpath_id == '') ? 0 : (int) $learnpath_id;
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$safe_lp_item_id = ($learnpath_item_id == '') ? 0 : (int) $learnpath_item_id;
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$condition = ' WHERE ' .
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'exe_exo_id = ' . "'" . $exerciseId . "'" . ' AND ' .
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'exe_user_id = ' . "'" . api_get_user_id() . "'" . ' AND ' .
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'exe_cours_id = ' . "'" . $_course['id'] . "'" . ' AND ' .
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'status = ' . "'incomplete'" . ' AND ' .
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'orig_lp_id = ' . "'" . $safe_lp_id . "'" . ' AND ' .
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'orig_lp_item_id = ' . "'" . $safe_lp_item_id . "'" . ' AND ' .
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'session_id = ' . "'" . (int) $_SESSION['id_session'] . "'";
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$TBL_EXERCICES = Database :: get_course_table(TABLE_QUIZ_TEST);
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$result = api_sql_query("SELECT type,feedback_type FROM $TBL_EXERCICES WHERE id=$exerciseId", __FILE__, __LINE__);
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$exercise_row = Database :: fetch_array($result);
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$exerciseType = $exercise_row['type'];
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$exerciseFeedbackType = $exercise_row['feedback_type'];
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if ($_configuration['live_exercise_tracking'] == true && $exerciseType == 2 && $exerciseFeedbackType != 1) {
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$query = 'SELECT * FROM ' . $stat_table . $condition;
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$result_select = api_sql_query($query, __FILE__, __LINE__);
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if (Database :: num_rows($result_select) > 0) {
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$getIncomplete = Database :: fetch_array($result_select);
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$exe_id = $getIncomplete['exe_id'];
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if ($_SERVER['REQUEST_METHOD'] != 'POST') {
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define('QUESTION_LIST_ALREADY_LOGGED', 1);
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$recorded['questionList'] = explode(',', $getIncomplete['data_tracking']);
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$query = 'SELECT * FROM ' . $exercice_attemp_table . ' WHERE exe_id = ' . $getIncomplete['exe_id'] . ' ORDER BY tms ASC';
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$result = api_sql_query($query, __FILE__, __LINE__);
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while ($row = Database :: fetch_array($result)) {
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$recorded['exerciseResult'][$row['question_id']] = 1;
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}
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$exerciseResult = $_SESSION['exerciseResult'] = $recorded['exerciseResult'];
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$exerciseType = 2;
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$questionNum = count($recorded['exerciseResult']);
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$questionNum++;
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$questionList = $_SESSION['questionList'] = $recorded['questionList'];
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}
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} else {
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$table_recorded_not_exist = true;
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}
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}
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// if the user has submitted the form
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if ($formSent) {
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if ($debug > 0) {
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echo str_repeat(' ', 0) . '$formSent was set' . "<br />\n";
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}
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// initializing
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if (!is_array($exerciseResult)) {
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$exerciseResult = array ();
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$exerciseResultCoordinates = array ();
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}
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// if the user has answered at least one question
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if (is_array($choice)) {
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if ($debug > 0) {
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echo str_repeat(' ', 0) . '$choice is an array' . "<br />\n";
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}
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if ($exerciseType == 1)
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{
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// $exerciseResult receives the content of the form.
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// Each choice of the student is stored into the array $choice
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$exerciseResult = $choice;
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// Also store hotspot spots in the session ($exerciseResultCoordinates
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// will be stored in the session at the end of this script)
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// The results will be stored by exercise_result.php if we are in
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// an exercise of type 1 (=all on one page)
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if (isset ($_POST['hotspot'])) {
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$exerciseResultCoordinates = $_POST['hotspot'];
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}
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} else {
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// gets the question ID from $choice. It is the key of the array
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list ($key) = array_keys($choice);
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// if the user didn't already answer this question
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if (!isset ($exerciseResult[$key])) {
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// stores the user answer into the array
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$exerciseResult[$key] = $choice[$key];
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//saving each question
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if ($_configuration['live_exercise_tracking'] == true && $exerciseType == 2 && $exerciseFeedbackType != 1) {
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$nro_question = $questionNum; // - 1;
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//START of saving and qualifying each question submitted
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//------------------------------------------------------------------------------------------
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//
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define('ENABLED_LIVE_EXERCISE_TRACKING', 1);
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require_once 'question.class.php';
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require_once 'answer.class.php';
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require_once api_get_path(LIBRARY_PATH) . 'events.lib.inc.php';
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$counter = 0;
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$main_course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
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$table_ans = Database :: get_course_table(TABLE_QUIZ_ANSWER);
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//foreach($questionList as $questionId)
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if (true) {
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$exeId = $exe_id;
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$questionId = $key;
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$counter++;
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// gets the student choice for this question
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$choice = $exerciseResult[$questionId];
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// creates a temporary Question object
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$objQuestionTmp = Question :: read($questionId);
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$questionName = $objQuestionTmp->selectTitle();
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$questionDescription = $objQuestionTmp->selectDescription();
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$questionWeighting = $objQuestionTmp->selectWeighting();
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$answerType = $objQuestionTmp->selectType();
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$quesId = $objQuestionTmp->selectId(); //added by priya saini
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// destruction of the Question object
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unset ($objQuestionTmp);
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if (isset ($_POST['hotspot']) && isset($_POST['hotspot'][$key])) {
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$exerciseResultCoordinates[$key] = $_POST['hotspot'][$key];
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}
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// construction of the Answer object
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$objAnswerTmp = new Answer($questionId);
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$nbrAnswers = $objAnswerTmp->selectNbrAnswers();
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$questionScore = 0;
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if ($answerType == FREE_ANSWER) {
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$nbrAnswers = 1;
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}
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for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
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$answer = $objAnswerTmp->selectAnswer($answerId);
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$answerComment = $objAnswerTmp->selectComment($answerId);
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$answerCorrect = $objAnswerTmp->isCorrect($answerId);
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$answerWeighting = $objAnswerTmp->selectWeighting($answerId);
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switch ($answerType) {
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// for unique answer
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case UNIQUE_ANSWER :
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$studentChoice = ($choice == $answerId) ? 1 : 0;
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if ($studentChoice) {
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$questionScore += $answerWeighting;
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$totalScore += $answerWeighting;
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}
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break;
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// for multiple answers
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case MULTIPLE_ANSWER :
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$studentChoice = $choice[$answerId];
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if ($studentChoice) {
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$questionScore += $answerWeighting;
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$totalScore += $answerWeighting;
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}
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break;
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// for fill in the blanks
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case FILL_IN_BLANKS :
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// the question is encoded like this
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// [A] B [C] D [E] F::10,10,10@1
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// number 1 before the "@" means that is a switchable fill in blank question
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// [A] B [C] D [E] F::10,10,10@ or [A] B [C] D [E] F::10,10,10
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// means that is a normal fill blank question
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// first we explode the "::"
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$pre_array = explode('::', $answer);
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// is switchable fill blank or not
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$last = count($pre_array) - 1;
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$is_set_switchable = explode('@', $pre_array[$last]);
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$switchable_answer_set = false;
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if (isset ($is_set_switchable[1]) && $is_set_switchable[1] == 1) {
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$switchable_answer_set = true;
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}
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$answer = '';
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for ($k = 0; $k < $last; $k++) {
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$answer .= $pre_array[$k];
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}
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// splits weightings that are joined with a comma
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$answerWeighting = explode(',', $is_set_switchable[0]);
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// we save the answer because it will be modified
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$temp = $answer;
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// TeX parsing
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// 1. find everything between the [tex] and [/tex] tags
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$startlocations = strpos($temp, '[tex]');
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$endlocations = strpos($temp, '[/tex]');
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if ($startlocations !== false && $endlocations !== false) {
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$texstring = substr($temp, $startlocations, $endlocations - $startlocations +6);
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// 2. replace this by {texcode}
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$temp = str_replace($texstring, '{texcode}', $temp);
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}
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$answer = '';
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$j = 0;
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//initialise answer tags
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$user_tags = array ();
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$correct_tags = array ();
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$real_text = array ();
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// the loop will stop at the end of the text
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while (1) {
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// quits the loop if there are no more blanks (detect '[')
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if (($pos = strpos($temp, '[')) === false) {
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// adds the end of the text
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$answer = $temp;
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// TeX parsing - replacement of texcode tags
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$texstring = api_parse_tex($texstring);
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$answer = str_replace("{texcode}", $texstring, $answer);
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$real_text[] = $answer;
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break; //no more "blanks", quit the loop
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}
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// adds the piece of text that is before the blank
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//and ends with '[' into a general storage array
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$real_text[] = substr($temp, 0, $pos +1);
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$answer .= substr($temp, 0, $pos +1);
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//take the string remaining (after the last "[" we found)
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$temp = substr($temp, $pos +1);
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// quit the loop if there are no more blanks, and update $pos to the position of next ']'
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if (($pos = strpos($temp, ']')) === false) {
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// adds the end of the text
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$answer .= $temp;
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break;
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}
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$choice[$j] = trim($choice[$j]);
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$user_tags[] = strtolower($choice[$j]);
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//put the contents of the [] answer tag into correct_tags[]
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$correct_tags[] = strtolower(substr($temp, 0, $pos));
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$j++;
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$temp = substr($temp, $pos +1);
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//$answer .= ']';
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}
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$answer = '';
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$real_correct_tags = $correct_tags;
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$chosen_list = array ();
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for ($i = 0; $i < count($real_correct_tags); $i++) {
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if ($i == 0) {
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$answer .= $real_text[0];
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}
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if (!$switchable_answer_set) {
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if ($correct_tags[$i] == $user_tags[$i]) {
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// gives the related weighting to the student
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$questionScore += $answerWeighting[$i];
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// increments total score
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$totalScore += $answerWeighting[$i];
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// adds the word in green at the end of the string
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$answer .= $correct_tags[$i];
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}
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// else if the word entered by the student IS NOT the same as the one defined by the professor
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elseif (!empty ($user_tags[$i])) {
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// adds the word in red at the end of the string, and strikes it
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$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
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} else {
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// adds a tabulation if no word has been typed by the student
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$answer .= ' ';
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}
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} else {
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// switchable fill in the blanks
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if (in_array($user_tags[$i], $correct_tags)) {
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$chosen_list[] = $user_tags[$i];
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$correct_tags = array_diff($correct_tags, $chosen_list);
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// gives the related weighting to the student
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$questionScore += $answerWeighting[$i];
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// increments total score
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$totalScore += $answerWeighting[$i];
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// adds the word in green at the end of the string
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$answer .= $user_tags[$i];
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}
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elseif (!empty ($user_tags[$i])) {
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// else if the word entered by the student IS NOT the same as the one defined by the professor
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// adds the word in red at the end of the string, and strikes it
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$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
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} else {
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// adds a tabulation if no word has been typed by the student
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$answer .= ' ';
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}
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}
|
|
// adds the correct word, followed by ] to close the blank
|
|
$answer .= ' / <font color="green"><b>' . $real_correct_tags[$i] . '</b></font>]';
|
|
if (isset ($real_text[$i +1])) {
|
|
$answer .= $real_text[$i +1];
|
|
}
|
|
}
|
|
|
|
break;
|
|
// for free answer
|
|
case FREE_ANSWER :
|
|
$studentChoice = $choice;
|
|
|
|
if ($studentChoice) {
|
|
//Score is at -1 because the question has'nt been corected
|
|
$questionScore = -1;
|
|
$totalScore += 0;
|
|
}
|
|
break;
|
|
// for matching
|
|
case MATCHING :
|
|
if ($answerCorrect) {
|
|
if ($answerCorrect == $choice[$answerId]) {
|
|
$questionScore += $answerWeighting;
|
|
$totalScore += $answerWeighting;
|
|
$choice[$answerId] = $matching[$choice[$answerId]];
|
|
}
|
|
elseif (!$choice[$answerId]) {
|
|
$choice[$answerId] = ' ';
|
|
} else {
|
|
$choice[$answerId] = '<font color="red"><s>' . $matching[$choice[$answerId]] . '</s></font>';
|
|
}
|
|
} else {
|
|
$matching[$answerId] = $answer;
|
|
}
|
|
break;
|
|
// for hotspot with no order
|
|
case HOT_SPOT :
|
|
$studentChoice = $choice[$answerId];
|
|
|
|
if ($studentChoice) {
|
|
$questionScore += $answerWeighting;
|
|
$totalScore += $answerWeighting;
|
|
}
|
|
break;
|
|
// for hotspot with fixed order
|
|
case HOT_SPOT_ORDER :
|
|
$studentChoice = $choice['order'][$answerId];
|
|
|
|
if ($studentChoice == $answerId) {
|
|
$questionScore += $answerWeighting;
|
|
$totalScore += $answerWeighting;
|
|
$studentChoice = true;
|
|
} else {
|
|
$studentChoice = false;
|
|
}
|
|
break;
|
|
} // end switch Answertype
|
|
} // end for that loops over all answers of the current question
|
|
// destruction of Answer
|
|
unset ($objAnswerTmp);
|
|
|
|
$i++;
|
|
|
|
$totalWeighting += $questionWeighting;
|
|
//added by priya saini
|
|
// Store results directly in the database
|
|
// For all in one page exercises, the results will be
|
|
// stored by exercise_results.php (using the session)
|
|
if ($_configuration['tracking_enabled']) {
|
|
if (empty ($choice)) {
|
|
$choice = 0;
|
|
}
|
|
if ($answerType == MULTIPLE_ANSWER) {
|
|
if ($choice != 0) {
|
|
$reply = array_keys($choice);
|
|
|
|
for ($i = 0; $i < sizeof($reply); $i++) {
|
|
$ans = $reply[$i];
|
|
|
|
exercise_attempt($questionScore, $ans, $quesId, $exeId, $i);
|
|
}
|
|
} else {
|
|
exercise_attempt($questionScore, 0, $quesId, $exeId, 0);
|
|
}
|
|
}
|
|
elseif ($answerType == MATCHING) {
|
|
$j = sizeof($matching) + 1;
|
|
|
|
for ($i = 0; $i < sizeof($choice); $i++, $j++) {
|
|
$val = $choice[$j];
|
|
if (preg_match_all('#<font color="red"><s>([0-9a-z ]*)</s></font>#', $val, $arr1)) {
|
|
$val = $arr1[1][0];
|
|
}
|
|
$val = $val;
|
|
$val = strip_tags($val);
|
|
$sql = "select position from $table_ans where question_id='" . Database :: escape_string($questionId) . "' and answer='" . Database :: escape_string($val) . "' AND correct=0";
|
|
$res = api_sql_query($sql, __FILE__, __LINE__);
|
|
if (Database :: num_rows($res) > 0) {
|
|
$answer = Database :: result($res, 0, "position");
|
|
} else {
|
|
$answer = '';
|
|
}
|
|
exercise_attempt($questionScore, $answer, $quesId, $exeId, $j);
|
|
|
|
}
|
|
} elseif ($answerType == FREE_ANSWER) {
|
|
$answer = $choice;
|
|
exercise_attempt($questionScore, $answer, $quesId, $exeId, 0);
|
|
} elseif ($answerType == UNIQUE_ANSWER) {
|
|
$sql = "select id from $table_ans where question_id='" . Database :: escape_string($questionId) . "' and position='" . Database :: escape_string($choice) . "'";
|
|
$res = api_sql_query($sql, __FILE__, __LINE__);
|
|
$answer = Database :: result($res, 0, "id");
|
|
exercise_attempt($questionScore, $answer, $quesId, $exeId, 0);
|
|
} elseif ($answerType == HOT_SPOT) {
|
|
exercise_attempt($questionScore, $answer, $quesId, $exeId, 0);
|
|
if (is_array($exerciseResultCoordinates[$key])) {
|
|
foreach($exerciseResultCoordinates[$key] as $idx => $val) {
|
|
exercise_attempt_hotspot($exeId,$quesId,$idx,$choice[$idx],$val);
|
|
}
|
|
}
|
|
} else {
|
|
exercise_attempt($questionScore, $answer, $quesId, $exeId, 0);
|
|
}
|
|
}
|
|
}
|
|
// end huge foreach() block that loops over all questions
|
|
|
|
//at loops over all questions
|
|
if (isset($exe_id)) {
|
|
$sql_update = 'UPDATE ' . $stat_table . ' SET exe_result = exe_result + ' . (int) $totalScore . ',exe_weighting = exe_weighting + ' . (int) $totalWeighting . ' WHERE exe_id = ' . Database::escape_string($exe_id);
|
|
api_sql_query($sql_update, __FILE__, __LINE__);
|
|
}
|
|
//END of saving and qualifying
|
|
//------------------------------------------------------------------------------------------
|
|
//
|
|
}
|
|
}
|
|
}
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$choice is an array - end' . "<br />\n";
|
|
}
|
|
}
|
|
|
|
// the script "exercise_result.php" will take the variable $exerciseResult from the session
|
|
api_session_register('exerciseResult');
|
|
api_session_register('exerciseResultCoordinates');
|
|
define('ALL_ON_ONE_PAGE',1);
|
|
define('ONE_PER_PAGE',2);
|
|
// if all questions on one page OR if it is the last question (only for an exercise with one question per page)
|
|
if ($exerciseType == ALL_ON_ONE_PAGE || $questionNum >= $nbrQuestions) {
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . 'Redirecting to exercise_result.php - Remove debug option to let this happen' . "<br />\n";
|
|
}
|
|
// goes to the script that will show the result of the exercise
|
|
if ($exerciseType == ALL_ON_ONE_PAGE) {
|
|
header("Location: exercise_result.php?id=$exe_id&exerciseType=$exerciseType&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id");
|
|
} else {
|
|
if ($exe_id != '') {
|
|
//clean incomplete
|
|
$update_query = 'UPDATE ' . $stat_table . ' SET ' . "status = '', data_tracking='', exe_date = '" . date('Y-m-d H:i:s') . "'" . ' WHERE exe_id = ' . Database::escape_string($exe_id);
|
|
api_sql_query($update_query, __FILE__, __LINE__);
|
|
}
|
|
header("Location: exercise_show.php?id=$exe_id&exerciseType=$exerciseType&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id");
|
|
}
|
|
exit ();
|
|
}
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$formSent was set - end' . "<br />\n";
|
|
}
|
|
}
|
|
|
|
// if the object is not in the session
|
|
|
|
//why destroying the exercise when a LP is loaded ?
|
|
//if (!isset($_SESSION['objExercise']) || $origin == 'learnpath' || $_SESSION['objExercise']->id != $_REQUEST['exerciseId']) {
|
|
if (!isset ($_SESSION['objExercise']) || $_SESSION['objExercise']->id != $_REQUEST['exerciseId']) {
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$_SESSION[objExercise] was unset' . "<br />\n";
|
|
}
|
|
// construction of Exercise
|
|
$objExercise = new Exercise();
|
|
unset ($_SESSION['questionList']);
|
|
|
|
// if the specified exercise doesn't exist or is disabled
|
|
if (!$objExercise->read($exerciseId) || (!$objExercise->selectStatus() && !$is_allowedToEdit && ($origin != 'learnpath'))) {
|
|
unset ($objExercise);
|
|
$error = get_lang('ExerciseNotFound');
|
|
//die(get_lang('ExerciseNotFound'));
|
|
} else {
|
|
// saves the object into the session
|
|
api_session_register('objExercise');
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$_SESSION[objExercise] was unset - set now - end' . "<br />\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isset ($objExcercise) && isset ($_SESSION['objExercise'])) {
|
|
$objExercise = $_SESSION['objExercise'];
|
|
}
|
|
if (!is_object($objExercise)) {
|
|
header('Location: exercice.php');
|
|
exit ();
|
|
}
|
|
$Exe_starttime = $objExercise->start_time;
|
|
$Exe_endtime = $objExercise->end_time;
|
|
$quizID = $objExercise->selectId();
|
|
$exerciseAttempts = $objExercise->selectAttempts();
|
|
$exerciseTitle = $objExercise->selectTitle();
|
|
$exerciseDescription = $objExercise->selectDescription();
|
|
$exerciseDescription = $exerciseDescription;
|
|
$exerciseSound = $objExercise->selectSound();
|
|
$randomQuestions = $objExercise->isRandom();
|
|
$exerciseType = $objExercise->selectType();
|
|
$table_quiz_test = Database :: get_course_table(TABLE_QUIZ_TEST);
|
|
//if (!isset($_SESSION['questionList']) || $origin == 'learnpath') {
|
|
//in LP's is enabled the "remember question" feature?
|
|
$my_exe_id = Security :: remove_XSS($_GET['exerciseId']);
|
|
if (!isset ($_SESSION['questionList'])) {
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$_SESSION[questionList] was unset' . "<br />\n";
|
|
}
|
|
// selects the list of question ID
|
|
$my_question_list = array ();
|
|
$questionList = ($randomQuestions ? $objExercise->selectRandomList() : $objExercise->selectQuestionList());
|
|
// saves the question list into the session
|
|
$sql = 'SELECT random FROM ' . $table_quiz_test . ' WHERE id="' . Database :: escape_string($my_exe_id) . '";';
|
|
$rs = api_sql_query($sql, __FILE__, __LINE__);
|
|
$row_number = Database :: fetch_array($rs);
|
|
$z = 0;
|
|
|
|
if ($row_number['random'] <> 0) {
|
|
foreach ($questionList as $infoquestionList) {
|
|
if ($z < $row_number['random']) {
|
|
$my_question_list[$z] = $infoquestionList;
|
|
} else {
|
|
break;
|
|
}
|
|
$z++;
|
|
}
|
|
// $questionList=array();
|
|
$questionList = $my_question_list;
|
|
}
|
|
api_session_register('questionList');
|
|
if ($debug > 0) {
|
|
echo str_repeat(' ', 0) . '$_SESSION[questionList] was unset - set now - end' . "<br />\n";
|
|
}
|
|
}
|
|
if (!isset ($objExcercise) && isset ($_SESSION['objExercise'])) {
|
|
$questionList = $_SESSION['questionList'];
|
|
}
|
|
|
|
$quizStartTime = time();
|
|
api_session_register('quizStartTime');
|
|
$nbrQuestions = sizeof($questionList);
|
|
// if questionNum comes from POST and not from GET
|
|
if (!$questionNum || $_POST['questionNum']) {
|
|
// only used for sequential exercises (see $exerciseType)
|
|
if (!$questionNum) {
|
|
$questionNum = 1;
|
|
} else {
|
|
$questionNum++;
|
|
}
|
|
}
|
|
|
|
if (!empty ($_GET['gradebook']) && $_GET['gradebook'] == 'view') {
|
|
$_SESSION['gradebook'] = Security :: remove_XSS($_GET['gradebook']);
|
|
$gradebook = $_SESSION['gradebook'];
|
|
}
|
|
elseif (empty ($_GET['gradebook'])) {
|
|
unset ($_SESSION['gradebook']);
|
|
$gradebook = '';
|
|
}
|
|
|
|
if (!empty ($gradebook) && $gradebook == 'view') {
|
|
$interbreadcrumb[] = array (
|
|
'url' => '../gradebook/' . $_SESSION['gradebook_dest'],
|
|
'name' => get_lang('Gradebook')
|
|
);
|
|
}
|
|
//$nameTools=get_lang('Exercice');
|
|
|
|
$interbreadcrumb[] = array (
|
|
"url" => "exercice.php?gradebook=$gradebook",
|
|
"name" => get_lang('Exercices')
|
|
);
|
|
$interbreadcrumb[] = array (
|
|
"url" => api_get_self()."?gradebook=$gradebook",
|
|
"name" => $exerciseTitle
|
|
);
|
|
|
|
if ($origin != 'learnpath') { //so we are not in learnpath tool
|
|
|
|
$htmlHeadXtra[] = "<script type=\"text/javascript\" src=\"../plugin/hotspot/JavaScriptFlashGateway.js\"></script>
|
|
<script src=\"../plugin/hotspot/hotspot.js\" type=\"text/javascript\"></script>
|
|
<script language=\"JavaScript\" type=\"text/javascript\">
|
|
<!--
|
|
// -----------------------------------------------------------------------------
|
|
// Globals
|
|
// Major version of Flash required
|
|
var requiredMajorVersion = 7;
|
|
// Minor version of Flash required
|
|
var requiredMinorVersion = 0;
|
|
// Minor version of Flash required
|
|
var requiredRevision = 0;
|
|
// the version of javascript supported
|
|
var jsVersion = 1.0;
|
|
// -----------------------------------------------------------------------------
|
|
// -->
|
|
</script>
|
|
<script language=\"VBScript\" type=\"text/vbscript\">
|
|
<!-- // Visual basic helper required to detect Flash Player ActiveX control version information
|
|
Function VBGetSwfVer(i)
|
|
on error resume next
|
|
Dim swControl, swVersion
|
|
swVersion = 0
|
|
|
|
set swControl = CreateObject(\"ShockwaveFlash.ShockwaveFlash.\" + CStr(i))
|
|
if (IsObject(swControl)) then
|
|
swVersion = swControl.GetVariable(\"\$version\")
|
|
end if
|
|
VBGetSwfVer = swVersion
|
|
End Function
|
|
// -->
|
|
</script>
|
|
|
|
<script language=\"JavaScript1.1\" type=\"text/javascript\">
|
|
<!-- // Detect Client Browser type
|
|
var isIE = (navigator.appVersion.indexOf(\"MSIE\") != -1) ? true : false;
|
|
var isWin = (navigator.appVersion.toLowerCase().indexOf(\"win\") != -1) ? true : false;
|
|
var isOpera = (navigator.userAgent.indexOf(\"Opera\") != -1) ? true : false;
|
|
jsVersion = 1.1;
|
|
// JavaScript helper required to detect Flash Player PlugIn version information
|
|
function JSGetSwfVer(i){
|
|
// NS/Opera version >= 3 check for Flash plugin in plugin array
|
|
if (navigator.plugins != null && navigator.plugins.length > 0) {
|
|
if (navigator.plugins[\"Shockwave Flash 2.0\"] || navigator.plugins[\"Shockwave Flash\"]) {
|
|
var swVer2 = navigator.plugins[\"Shockwave Flash 2.0\"] ? \" 2.0\" : \"\";
|
|
var flashDescription = navigator.plugins[\"Shockwave Flash\" + swVer2].description;
|
|
descArray = flashDescription.split(\" \");
|
|
tempArrayMajor = descArray[2].split(\".\");
|
|
versionMajor = tempArrayMajor[0];
|
|
versionMinor = tempArrayMajor[1];
|
|
if ( descArray[3] != \"\" ) {
|
|
tempArrayMinor = descArray[3].split(\"r\");
|
|
} else {
|
|
tempArrayMinor = descArray[4].split(\"r\");
|
|
}
|
|
versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
|
|
flashVer = versionMajor + \".\" + versionMinor + \".\" + versionRevision;
|
|
} else {
|
|
flashVer = -1;
|
|
}
|
|
}
|
|
// MSN/WebTV 2.6 supports Flash 4
|
|
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.6\") != -1) flashVer = 4;
|
|
// WebTV 2.5 supports Flash 3
|
|
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.5\") != -1) flashVer = 3;
|
|
// older WebTV supports Flash 2
|
|
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv\") != -1) flashVer = 2;
|
|
// Can't detect in all other cases
|
|
else {
|
|
|
|
flashVer = -1;
|
|
}
|
|
return flashVer;
|
|
}
|
|
// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
|
|
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
|
|
{
|
|
reqVer = parseFloat(reqMajorVer + \".\" + reqRevision);
|
|
// loop backwards through the versions until we find the newest version
|
|
for (i=25;i>0;i--) {
|
|
if (isIE && isWin && !isOpera) {
|
|
versionStr = VBGetSwfVer(i);
|
|
} else {
|
|
versionStr = JSGetSwfVer(i);
|
|
}
|
|
if (versionStr == -1 ) {
|
|
return false;
|
|
} else if (versionStr != 0) {
|
|
if(isIE && isWin && !isOpera) {
|
|
tempArray = versionStr.split(\" \");
|
|
tempString = tempArray[1];
|
|
versionArray = tempString .split(\",\");
|
|
} else {
|
|
versionArray = versionStr.split(\".\");
|
|
}
|
|
versionMajor = versionArray[0];
|
|
versionMinor = versionArray[1];
|
|
versionRevision = versionArray[2];
|
|
|
|
versionString = versionMajor + \".\" + versionRevision; // 7.0r24 == 7.24
|
|
versionNum = parseFloat(versionString);
|
|
// is the major.revision >= requested major.revision AND the minor version >= requested minor
|
|
if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
|
|
return true;
|
|
} else {
|
|
return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// -->
|
|
</script>";
|
|
Display :: display_header($nameTools, "Exercise");
|
|
} else {
|
|
if (empty ($charset)) {
|
|
$charset = 'ISO-8859-15';
|
|
}
|
|
/*
|
|
* HTML HEADER
|
|
*/
|
|
Display::display_reduced_header();
|
|
echo '<div style="height:10px"> </div>';
|
|
}
|
|
|
|
// I'm in a preview mode
|
|
if (api_is_course_admin() && $origin != 'learnpath') {
|
|
echo '<div class="actions">';
|
|
echo Display :: return_icon('quiz.gif', get_lang('GoBackToEx')) . '<a href="admin.php?' . api_get_cidreq() . '&exerciseId=' . $objExercise->id . '">' . get_lang('GoBackToEx') . '</a>';
|
|
echo Display :: return_icon('edit.gif', get_lang('ModifyExercise')) . '<a href="exercise_admin.php?modifyExercise=yes&exerciseId=' . $objExercise->id . '">' . get_lang('ModifyExercise') . '</a>';
|
|
echo '</div>';
|
|
}
|
|
|
|
$exerciseTitle = api_parse_tex($exerciseTitle);
|
|
|
|
echo "<h3>" . $exerciseTitle . "</h3>";
|
|
|
|
if ($exerciseAttempts > 0) {
|
|
$user_id = api_get_user_id();
|
|
$course_code = api_get_course_id();
|
|
$sql = "SELECT count(*) FROM $stat_table WHERE exe_exo_id = '$quizID'
|
|
AND exe_user_id = '$user_id'
|
|
AND status != 'incomplete'
|
|
AND orig_lp_id = $safe_lp_id
|
|
AND orig_lp_item_id = $safe_lp_item_id
|
|
AND exe_cours_id = '$course_code' AND session_id = '" . (int) $_SESSION['id_session'] . "'";
|
|
|
|
$aquery = api_sql_query($sql, __FILE__, __LINE__);
|
|
$attempt = Database :: fetch_array($aquery);
|
|
|
|
if ($attempt[0] >= $exerciseAttempts) {
|
|
if (!api_is_allowed_to_edit()) {
|
|
Display :: display_warning_message(sprintf(get_lang('ReachedMaxAttempts'), $exerciseTitle, $exerciseAttempts), false);
|
|
if ($origin != 'learnpath')
|
|
Display :: display_footer();
|
|
exit;
|
|
} else {
|
|
Display :: display_warning_message(sprintf(get_lang('ReachedMaxAttemptsAdmin'), $exerciseTitle, $exerciseAttempts), false);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!function_exists('convert_date_to_number')) {
|
|
function convert_date_to_number($default) {
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// 2008-10-12 00:00:00 ---to--> 12345672218 (timestamp)
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$parts = split(' ', $default);
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list ($d_year, $d_month, $d_day) = split('-', $parts[0]);
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list ($d_hour, $d_minute, $d_second) = split(':', $parts[1]);
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return mktime($d_hour, $d_minute, $d_second, $d_month, $d_day, $d_year);
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}
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}
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|
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$limit_time_exists = (($Exe_starttime != '0000-00-00 00:00:00') || ($Exe_endtime != '0000-00-00 00:00:00')) ? true : false;
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if ($limit_time_exists) {
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$exercise_start_time = convert_date_to_number($Exe_starttime);
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$exercise_end_time = convert_date_to_number($Exe_endtime);
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$time_now = convert_date_to_number(date('Y-m-d H:i:s'));
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$permission_to_start = (($time_now - $exercise_start_time) > 0) ? true : false;
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if ($_SERVER['REQUEST_METHOD'] != 'POST')
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$exercise_timeover = (($time_now - $exercise_end_time) > 0) ? true : false;
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if ($permission_to_start == false || $exercise_timeover == true) { //
|
|
if (!api_is_allowed_to_edit()) {
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$message_warning = ($permission_to_start == false) ? get_lang('ExerciseNoStartedYet') : get_lang('ReachedTimeLimit');
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Display :: display_warning_message(sprintf($message_warning, $exerciseTitle, $exerciseAttempts));
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|
Display :: display_footer();
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exit;
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} else {
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$message_warning = ($permission_to_start == false) ? get_lang('ExerciseNoStartedAdmin') : get_lang('ReachedTimeLimitAdmin');
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Display :: display_warning_message(sprintf($message_warning, $exerciseTitle, $exerciseAttempts));
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}
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|
}
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|
}
|
|
|
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if (!empty ($error)) {
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Display :: display_error_message($error, false);
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|
} else {
|
|
if (!empty ($exerciseSound)) {
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|
echo "<a href=\"../document/download.php?doc_url=%2Faudio%2F" . Security::remove_XSS($exerciseSound) . "\" target=\"_blank\">", "<img src=\"../img/sound.gif\" border=\"0\" align=\"absmiddle\" alt=", get_lang('Sound') .
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"\" /></a>";
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|
}
|
|
|
|
// Get number of hotspot questions for javascript validation
|
|
$number_of_hotspot_questions = 0;
|
|
$onsubmit = '';
|
|
$i = 0;
|
|
//i have a doubt in this line cvargas
|
|
//var_dump($questionList);
|
|
if (!strcmp($questionList[0], '') === 0) {
|
|
foreach ($questionList as $questionId) {
|
|
$i++;
|
|
$objQuestionTmp = Question :: read($questionId);
|
|
// for sequential exercises
|
|
if ($exerciseType == 2) {
|
|
// if it is not the right question, goes to the next loop iteration
|
|
if ($questionNum != $i) {
|
|
continue;
|
|
} else {
|
|
if ($objQuestionTmp->selectType() == HOT_SPOT) {
|
|
$number_of_hotspot_questions++;
|
|
}
|
|
|
|
break;
|
|
}
|
|
} else {
|
|
if ($objQuestionTmp->selectType() == HOT_SPOT) {
|
|
$number_of_hotspot_questions++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($number_of_hotspot_questions > 0) {
|
|
$onsubmit = "onsubmit=\"return validateFlashVar('" . $number_of_hotspot_questions . "', '" . get_lang('HotspotValidateError1') . "', '" . get_lang('HotspotValidateError2') . "');\"";
|
|
}
|
|
$s = "<p>$exerciseDescription</p>";
|
|
|
|
if ($exerciseType == 2)
|
|
{
|
|
$s2 = "&exerciseId=" . $exerciseId;
|
|
}
|
|
|
|
$s .= " <form method='post' action='" . api_get_self() . "?autocomplete=off&gradebook=$gradebook" . $s2 . "' name='frm_exercise' $onsubmit>
|
|
<input type='hidden' name='formSent' value='1' />
|
|
<input type='hidden' name='exerciseType' value='" . $exerciseType . "' />
|
|
<input type='hidden' name='exerciseId' value='" . $exerciseId . "' />
|
|
<input type='hidden' name='questionNum' value='" . $questionNum . "' />
|
|
<input type='hidden' name='nbrQuestions' value='" . $nbrQuestions . "' />
|
|
<input type='hidden' name='origin' value='" . $origin . "' />
|
|
<input type='hidden' name='learnpath_id' value='" . $learnpath_id . "' />
|
|
<input type='hidden' name='learnpath_item_id' value='" . $learnpath_item_id . "' />
|
|
<table width='100%' border='0' cellpadding='1' cellspacing='0'>
|
|
<tr>
|
|
<td>
|
|
<table width='100%' cellpadding='3' cellspacing='0' border='0'>";
|
|
echo $s;
|
|
$i = 1;
|
|
foreach ($questionList as $questionId) {
|
|
// for sequential exercises
|
|
if ($exerciseType == 2) {
|
|
// if it is not the right question, goes to the next loop iteration
|
|
if ($questionNum != $i) {
|
|
$i++;
|
|
continue;
|
|
} else {
|
|
if ($exerciseFeedbackType != 1) {
|
|
// if the user has already answered this question
|
|
if (isset ($exerciseResult[$questionId])) {
|
|
// construction of the Question object
|
|
$objQuestionTmp = Question :: read($questionId);
|
|
$questionName = $objQuestionTmp->selectTitle();
|
|
// destruction of the Question object
|
|
unset ($objQuestionTmp);
|
|
Display :: display_normal_message(get_lang('AlreadyAnswered'));
|
|
$i++;
|
|
//echo '<tr><td>'.get_lang('AlreadyAnswered').' "'.$questionName.'"</td></tr>';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// shows the question and its answers
|
|
showQuestion($questionId, false, $origin, $i, $nbrQuestions);
|
|
$i++;
|
|
// for sequential exercises
|
|
if ($exerciseType == 2) {
|
|
// quits the loop
|
|
break;
|
|
}
|
|
}
|
|
// end foreach()
|
|
echo "<!-- <button type='submit' name='buttonCancel' class='cancel'>" . get_lang('Cancel') . "</button>
|
|
//--><br />";
|
|
echo '<div style="padding-left:10px; margin-top:-10px;">';
|
|
$submit_btn = "<button class='next' type='submit' name='submit'>";
|
|
// $submit_btn.=get_lang('ValidateAnswer');
|
|
if ($objExercise->selectFeedbackType() == 1 && $_SESSION['objExercise']->selectType() == 2) {
|
|
$submit_btn = '';
|
|
echo '<script src="' . api_get_path(WEB_LIBRARY_PATH) . 'javascript/thickbox.js" type="text/javascript"></script>';
|
|
echo '<style type="text/css" media="all">@import "' . api_get_path(WEB_LIBRARY_PATH) . 'javascript/thickbox.css";</style>';
|
|
$hotspot_get = $_POST['hotspot'];
|
|
// Show a hidden div
|
|
echo "<script>$(document).ready( function(){
|
|
$('.rounded').corners();
|
|
$('.rounded_inner').corners();
|
|
});</script>";
|
|
//echo '<br /><span class="rounded" style="width: 300px; margin-top: 10px; padding: 3px; background-color:#ccc;"><span style="width: 300px" class="rounded_inner" ><a href="exercise_submit_modal.php?hotspot='.$hotspot_get.'&nbrQuestions='.$nbrQuestions.'&questionnum='.$questionNum.'&exerciseType='.$exerciseType.'&exerciseId='.$exerciseId.'&placeValuesBeforeTB_=savedValues&TB_iframe=true&height=480&width=640&modal=true" title="" class="thickbox" id="validationButton">'.get_lang('ValidateAnswer').'</a></span></span><br /><br /><br />';
|
|
|
|
} else {
|
|
if ($exerciseType == 1 || $nbrQuestions == $questionNum) {
|
|
$submit_btn .= get_lang('ValidateAnswer');
|
|
} else {
|
|
$submit_btn .= get_lang('NextQuestion');
|
|
}
|
|
$submit_btn .= "</button>";
|
|
}
|
|
|
|
echo $submit_btn;
|
|
echo "</table>
|
|
</td>
|
|
</tr>
|
|
</table></form>";
|
|
$b = 2;
|
|
}
|
|
echo '</div>';
|
|
if ($_configuration['live_exercise_tracking'] == true && $exerciseFeedbackType != 1) {
|
|
//if($questionNum < 2){
|
|
if ($table_recorded_not_exist) {
|
|
if ($exerciseType == 2) {
|
|
api_sql_query("INSERT INTO $stat_table(exe_exo_id,exe_user_id,exe_cours_id,status,session_id,data_tracking,start_date,orig_lp_id,orig_lp_item_id)
|
|
VALUES('$exerciseId','" . api_get_user_id() . "','" . $_course['id'] . "','incomplete','" . api_get_session_id() . "','" . implode(',', $questionList) . "','" . date('Y-m-d H:i:s') . "',$safe_lp_id,$safe_lp_item_id)", __FILE__, __LINE__);
|
|
} else {
|
|
api_sql_query("INSERT INTO $stat_table (exe_exo_id,exe_user_id,exe_cours_id,status,session_id,start_date,orig_lp_id,orig_lp_item_id)
|
|
VALUES('$exerciseId','" . api_get_user_id() . "','" . $_course['id'] . "','incomplete','" . api_get_session_id() . "','" . date('Y-m-d H:i:s') . "',$safe_lp_id,$safe_lp_item_id)", __FILE__, __LINE__);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($origin != 'learnpath') {
|
|
//so we are not in learnpath tool
|
|
Display :: display_footer();
|
|
} |