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530 lines
17 KiB
530 lines
17 KiB
<?php // $Id: exercice_submit.php 9972 2006-11-14 14:44:37Z pcool $
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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 Dokeos S.A.
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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) Olivier Brouckaert
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Copyright (c) Denes Nagy
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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: Dokeos, 181 rue Royale, B-1000 Brussels, Belgium, info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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EXERCISE SUBMISSION
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*
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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 and fill in blanks).
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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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*
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* @author Olivier Brouckaert
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* @package dokeos.exercise
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==============================================================================
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*/
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include('exercise.class.php');
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include('question.class.php');
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include('answer.class.php');
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include('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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$debug = 0;
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// answer types
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define('UNIQUE_ANSWER', 1);
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define('MULTIPLE_ANSWER', 2);
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define('FILL_IN_BLANKS', 3);
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define('MATCHING', 4);
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define('FREE_ANSWER', 5);
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define('HOT_SPOT', 6);
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define('HOT_SPOT_ORDER', 7);
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$langFile='exercice';
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include_once('../inc/global.inc.php');
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$this_section=SECTION_COURSES;
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include_once(api_get_path(LIBRARY_PATH).'text.lib.php');
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$is_allowedToEdit=$is_courseAdmin;
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$TBL_EXERCICE_QUESTION = $_course['dbNameGlu'].'quiz_rel_question';
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$TBL_EXERCICES = $_course['dbNameGlu'].'quiz';
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$TBL_QUESTIONS = $_course['dbNameGlu'].'quiz_question';
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$TBL_REPONSES = $_course['dbNameGlu'].'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 = mysql_real_escape_string($_REQUEST['learnpath_id']);
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}
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if ( empty ( $learnpath_item_id ) ) {
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$learnpath_item_id = mysql_real_escape_string($_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 ( $exerciseType ) ) {
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$exerciseType = $_REQUEST['exerciseType'];
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}
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if ( empty ( $exerciseId ) ) {
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$exerciseId = $_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 ( $questionNum ) ) {
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$questionNum = mysql_real_escape_string($_REQUEST['questionNum']);
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}
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if ( empty ( $nbrQuestions ) ) {
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$nbrQuestions = mysql_real_escape_string($_REQUEST['nbrQuestions']);
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}
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if ( empty ($buttonCancel) ) {
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$buttonCancel = $_REQUEST['buttonCancel'];
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}
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// if the user has clicked on the "Cancel" button
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if($buttonCancel)
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{
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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=='builder') {
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/*******************************/
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/* Clears the exercise session */
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/*******************************/
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if(isset($_SESSION['objExercise'])) { api_session_unregister('objExercise'); unset($objExercise); }
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if(isset($_SESSION['objQuestion'])) { api_session_unregister('objQuestion'); unset($objQuestion); }
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if(isset($_SESSION['objAnswer'])) { api_session_unregister('objAnswer'); unset($objAnswer); }
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if(isset($_SESSION['questionList'])) { api_session_unregister('questionList'); unset($questionList); }
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if(isset($_SESSION['exerciseResult'])) { api_session_unregister('exerciseResult'); unset($exerciseResult); }
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}
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// if the user has submitted the form
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if($formSent)
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{
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if($debug>0){echo str_repeat(' ',0).'$formSent was set'."<br />\n";}
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// initializing
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if(!is_array($exerciseResult))
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{
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$exerciseResult=array();
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}
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// if the user has answered at least one question
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if(is_array($choice))
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{
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if($debug>0){echo str_repeat(' ',0).'$choice is an array'."<br />\n";}
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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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}
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else
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{
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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[$key]))
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{
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// stores the user answer into the array
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$exerciseResult[$key]=$choice[$key];
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}
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}
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if($debug>0){echo str_repeat(' ',0).'$choice is an array - end'."<br />\n";}
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}
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// the script "exercise_result.php" will take the variable $exerciseResult from the session
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api_session_register('exerciseResult');
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// if it is the last question (only for a sequential exercise)
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if($exerciseType == 1 || $questionNum >= $nbrQuestions)
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{
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if($debug>0){echo str_repeat(' ',0).'Redirecting to exercise_result.php - Remove debug option to let this happen'."<br />\n";}
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// goes to the script that will show the result of the exercise
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header("Location: exercise_result.php?origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id");
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exit();
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}
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if($debug>0){echo str_repeat(' ',0).'$formSent was set - end'."<br />\n";}
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}
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// if the object is not in the session
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if(!isset($_SESSION['objExercise']))
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{
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if($debug>0){echo str_repeat(' ',0).'$_SESSION[objExercise] was unset'."<br />\n";}
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// construction of Exercise
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$objExercise=new Exercise();
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#$sql="SELECT title,description,sound,type,random,active FROM `$TBL_EXERCICES` WHERE id='$exerciseId'";
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// if the specified exercise doesn't exist or is disabled
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if(!$objExercise->read($exerciseId) || (!$objExercise->selectStatus() && !$is_allowedToEdit && ($origin != 'learnpath') ))
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{
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die(get_lang('ExerciseNotFound'));
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}
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// saves the object into the session
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api_session_register('objExercise');
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if($debug>0){echo str_repeat(' ',0).'$_SESSION[objExercise] was unset - set now - end'."<br />\n";}
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}
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if(!is_object($objExercise))
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{
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header('Location: exercice.php');
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exit();
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}
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$exerciseTitle=$objExercise->selectTitle();
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$exerciseDescription=$objExercise->selectDescription();
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$exerciseSound=$objExercise->selectSound();
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$randomQuestions=$objExercise->isRandom();
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$exerciseType=$objExercise->selectType();
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if(!isset($_SESSION['questionList']))
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{
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if($debug>0){echo str_repeat(' ',0).'$_SESSION[questionList] was unset'."<br />\n";}
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// selects the list of question ID
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$questionList = ($randomQuestions?$objExercise->selectRandomList():$objExercise->selectQuestionList());
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// saves the question list into the session
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api_session_register('questionList');
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if($debug>0){echo str_repeat(' ',0).'$_SESSION[questionList] was unset - set now - end'."<br />\n";}
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}
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$nbrQuestions=sizeof($questionList);
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// if questionNum comes from POST and not from GET
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if(!$questionNum || $_POST['questionNum'])
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{
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// only used for sequential exercises (see $exerciseType)
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if(!$questionNum)
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{
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$questionNum=1;
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}
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else
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{
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$questionNum++;
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}
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}
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//$nameTools=get_lang('Exercice');
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$interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
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if ($origin != 'learnpath') { //so we are not in learnpath tool
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$htmlHeadXtra[] = "<script type=\"text/javascript\" src=\"../js/JavaScriptFlashGateway.js\"></script>
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<script src=\"../js/hotspot.js\" type=\"text/javascript\"></script>
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<script language=\"JavaScript\" type=\"text/javascript\">
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<!--
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// -----------------------------------------------------------------------------
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// Globals
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// Major version of Flash required
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var requiredMajorVersion = 7;
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// Minor version of Flash required
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var requiredMinorVersion = 0;
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// Minor version of Flash required
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var requiredRevision = 0;
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// the version of javascript supported
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var jsVersion = 1.0;
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// -----------------------------------------------------------------------------
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// -->
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</script>
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<script language=\"VBScript\" type=\"text/vbscript\">
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<!-- // Visual basic helper required to detect Flash Player ActiveX control version information
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Function VBGetSwfVer(i)
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on error resume next
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Dim swControl, swVersion
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swVersion = 0
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set swControl = CreateObject(\"ShockwaveFlash.ShockwaveFlash.\" + CStr(i))
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if (IsObject(swControl)) then
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swVersion = swControl.GetVariable(\"\$version\")
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end if
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VBGetSwfVer = swVersion
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End Function
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// -->
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</script>
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<script language=\"JavaScript1.1\" type=\"text/javascript\">
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<!-- // Detect Client Browser type
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var isIE = (navigator.appVersion.indexOf(\"MSIE\") != -1) ? true : false;
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var isWin = (navigator.appVersion.toLowerCase().indexOf(\"win\") != -1) ? true : false;
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var isOpera = (navigator.userAgent.indexOf(\"Opera\") != -1) ? true : false;
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jsVersion = 1.1;
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// JavaScript helper required to detect Flash Player PlugIn version information
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function JSGetSwfVer(i){
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// NS/Opera version >= 3 check for Flash plugin in plugin array
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if (navigator.plugins != null && navigator.plugins.length > 0) {
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if (navigator.plugins[\"Shockwave Flash 2.0\"] || navigator.plugins[\"Shockwave Flash\"]) {
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var swVer2 = navigator.plugins[\"Shockwave Flash 2.0\"] ? \" 2.0\" : \"\";
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var flashDescription = navigator.plugins[\"Shockwave Flash\" + swVer2].description;
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descArray = flashDescription.split(\" \");
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tempArrayMajor = descArray[2].split(\".\");
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versionMajor = tempArrayMajor[0];
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versionMinor = tempArrayMajor[1];
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if ( descArray[3] != \"\" ) {
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tempArrayMinor = descArray[3].split(\"r\");
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} else {
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tempArrayMinor = descArray[4].split(\"r\");
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}
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versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
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flashVer = versionMajor + \".\" + versionMinor + \".\" + versionRevision;
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} else {
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flashVer = -1;
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}
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}
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// MSN/WebTV 2.6 supports Flash 4
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.6\") != -1) flashVer = 4;
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// WebTV 2.5 supports Flash 3
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.5\") != -1) flashVer = 3;
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// older WebTV supports Flash 2
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv\") != -1) flashVer = 2;
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// Can't detect in all other cases
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else {
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flashVer = -1;
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}
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return flashVer;
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}
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// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
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function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
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{
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reqVer = parseFloat(reqMajorVer + \".\" + reqRevision);
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// loop backwards through the versions until we find the newest version
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for (i=25;i>0;i--) {
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if (isIE && isWin && !isOpera) {
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versionStr = VBGetSwfVer(i);
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} else {
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versionStr = JSGetSwfVer(i);
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}
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if (versionStr == -1 ) {
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return false;
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} else if (versionStr != 0) {
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if(isIE && isWin && !isOpera) {
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tempArray = versionStr.split(\" \");
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tempString = tempArray[1];
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versionArray = tempString .split(\",\");
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} else {
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versionArray = versionStr.split(\".\");
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}
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versionMajor = versionArray[0];
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versionMinor = versionArray[1];
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versionRevision = versionArray[2];
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versionString = versionMajor + \".\" + versionRevision; // 7.0r24 == 7.24
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versionNum = parseFloat(versionString);
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// is the major.revision >= requested major.revision AND the minor version >= requested minor
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if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
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return true;
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} else {
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return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );
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}
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}
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}
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}
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// -->
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</script>";
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Display::display_header($nameTools,"Exercise");
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}
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else
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{
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?>
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<link rel="stylesheet" type="text/css" href="<?php echo api_get_path(WEB_CODE_PATH); ?>css/frames.css" />
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<?php
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}
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$exerciseTitle=api_parse_tex($exerciseTitle);
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echo "<h3>".$exerciseTitle."</h3>";
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if(!empty($exerciseSound))
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{
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echo "<a href=\"../document/download.php?doc_url=%2Faudio%2F".$exerciseSound."\" target=\"_blank\">",
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"<img src=\"../img/sound.gif\" border=\"0\" align=\"absmiddle\" alt=",get_lang('Sound')."\" /></a>";
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}
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/* <ERM> */
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// Get number of hotspot questions for javascript validation
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$number_of_hotspot_questions = 0;
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$onsubmit = '';
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$i=0;
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foreach($questionList as $questionId)
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{
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$i++;
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$objQuestionTmp=new Question();
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$objQuestionTmp->read($questionId);
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// for sequential exercises
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if($exerciseType == 2)
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{
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// if it is not the right question, goes to the next loop iteration
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if($questionNum != $i)
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{
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continue;
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}
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else
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{
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if ($objQuestionTmp->selectType() == HOT_SPOT)
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{
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$number_of_hotspot_questions++;
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}
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break;
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}
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}
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else
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{
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if ($objQuestionTmp->selectType() == HOT_SPOT)
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{
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$number_of_hotspot_questions++;
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}
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}
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}
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if($number_of_hotspot_questions > 0)
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{
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$onsubmit = "onsubmit=\"return validateFlashVar('".$number_of_hotspot_questions."', '".get_lang('HotspotValidateError1')."', '".get_lang('HotspotValidateError2')."')\"";
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}
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$s="
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<p>$exerciseDescription</p>
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<form method='post' action='".$_SERVER['PHP_SELF']."?autocomplete=off' name='frm_exercise' $onsubmit>
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<input type='hidden' name='formSent' value='1' />
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<input type='hidden' name='exerciseType' value='".$exerciseType."' />
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<input type='hidden' name='questionNum' value='".$questionNum."' />
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<input type='hidden' name='nbrQuestions' value='".$nbrQuestions."' />
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<input type='hidden' name='origin' value='".$origin."' />
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<input type='hidden' name='learnpath_id' value='".$learnpath_id."' />
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<input type='hidden' name='learnpath_item_id' value='".$learnpath_item_id."' />
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<table width='100%' border='0' cellpadding='1' cellspacing='0'>
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<tr>
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<td>
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<table width='100%' cellpadding='4' cellspacing='2' border='0'>";
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echo $s;
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/* </ERM> */
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if (isset($_POST['submit']))
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{
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echo "Form submited";
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}
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$i=0;
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foreach($questionList as $questionId)
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{
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$i++;
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// for sequential exercises
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if($exerciseType == 2)
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{
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// if it is not the right question, goes to the next loop iteration
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if($questionNum != $i)
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{
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continue;
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}
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else
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{
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// if the user has already answered this question
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if(isset($exerciseResult[$questionId]))
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{
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// construction of the Question object
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$objQuestionTmp=new Question();
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// reads question informations
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$objQuestionTmp->read($questionId);
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$questionName=$objQuestionTmp->selectTitle();
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// destruction of the Question object
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unset($objQuestionTmp);
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echo '<tr><td>'.get_lang('AlreadyAnswered').' "'.$questionName.'"</td></tr>';
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break;
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}
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}
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}
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$s="<tr bgcolor='#e6e6e6'>
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<td valign='top' colspan='2'>
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".get_lang('Question')." ";
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$s.=$i;
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if($exerciseType == 2) $s.=' / '.$nbrQuestions;
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$s.='</td></tr>';
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echo $s;
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// shows the question and its answers
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showQuestion($questionId, false, $origin);
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// for sequential exercises
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if($exerciseType == 2)
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{
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// quits the loop
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break;
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}
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} // end foreach()
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$s="</table>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><br/>
|
|
<!-- <input type='submit' name='buttonCancel' value=".get_lang('Cancel')." />
|
|
//-->
|
|
<input type='submit' name='submit' value='";
|
|
|
|
if ($exerciseType == 1 || $nbrQuestions == $questionNum) {
|
|
$s.=get_lang('Ok');
|
|
}
|
|
else
|
|
{
|
|
$s.=get_lang('Next').' >';
|
|
}
|
|
$s.='\'>';
|
|
$s.="</td></tr></form></table>";
|
|
|
|
$b=2;
|
|
echo $s;
|
|
|
|
if ($origin != 'learnpath') { //so we are not in learnpath tool
|
|
Display::display_footer();
|
|
} else {
|
|
?>
|
|
<link rel="stylesheet" type="text/css" href="<?php echo $clarolineRepositoryWeb ?>css/frames.css" />
|
|
<?php
|
|
}
|
|
?>
|
|
|