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293 lines
8.9 KiB
293 lines
8.9 KiB
<?php
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/*
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DOKEOS - elearning and course management software
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For a full list of contributors, see documentation/credits.html
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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 "documentation/licence.html" more details.
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Contact: Dokeos, Rue du Corbeau, 108, B-1030 Brussels - Belgium, info@dokeos.com
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*/
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/**
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* Question Pool
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* This script allows administrators to manage questions and add them into their exercises.
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* One question can be in several exercises
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* @package dokeos.exercise
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* @author Olivier Brouckaert
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* @version $Id: question_pool.php 15791 2008-07-15 16:03:52Z juliomontoya $
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*/
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// name of the language file that needs to be included
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$language_file='exercice';
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include('exercise.class.php');
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include('question.class.php');
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include('answer.class.php');
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include('../inc/global.inc.php');
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$this_section=SECTION_COURSES;
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$is_allowedToEdit=api_is_allowed_to_edit();
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$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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if ( empty ( $delete ) ) {
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$delete = intval($_GET['delete']);
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}
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if ( empty ( $recup ) ) {
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$recup = intval($_GET['recup']);
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}
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if ( empty ( $fromExercise ) ) {
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$fromExercise = intval($_GET['fromExercise']);
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}
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if(isset($_GET['exerciseId'])){
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$exerciseId = intval($_GET['exerciseId']);
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}
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if(!empty($_GET['page'])){
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$page = intval($_GET['page']);
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}
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// maximum number of questions on a same page
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$limitQuestPage=50;
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// document path
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$documentPath=api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
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// picture path
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$picturePath=$documentPath.'/images';
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if(!($objExcercise instanceOf Exercise) && !empty($fromExercise))
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{
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$objExercise = new Exercise();
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$objExercise->read($fromExercise);
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}
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if(!($objExcercise instanceOf Exercise) && !empty($exerciseId))
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{
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$objExercise = new Exercise();
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$objExercise->read($exerciseId);
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}
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if($is_allowedToEdit)
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{
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// deletes a question from the data base and all exercises
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if($delete)
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{
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// construction of the Question object
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// if the question exists
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if($objQuestionTmp = Question::read($delete))
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{
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// deletes the question from all exercises
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$objQuestionTmp->delete();
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}
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// destruction of the Question object
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unset($objQuestionTmp);
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}
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// gets an existing question and copies it into a new exercise
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elseif($recup && $fromExercise)
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{
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// if the question exists
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if($objQuestionTmp = Question :: read($recup))
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{
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// adds the exercise ID represented by $fromExercise into the list of exercises for the current question
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$objQuestionTmp->addToList($fromExercise);
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}
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// destruction of the Question object
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unset($objQuestionTmp);
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if(!$objExcercise instanceOf Exercise)
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{
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$objExercise = new Exercise();
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$objExercise->read($fromExercise);
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}
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// adds the question ID represented by $recup into the list of questions for the current exercise
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$objExercise->addToList($recup);
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api_session_register('objExercise');
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header("Location: admin.php?exerciseId=$fromExercise");
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exit();
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}
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}
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$nameTools=get_lang('QuestionPool');
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$interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
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// if admin of course
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if($is_allowedToEdit)
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{
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Display::display_header($nameTools,"Exercise");
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?>
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<h3>
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<?php echo $nameTools; ?>
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</h3>
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<form method="get" action="<?php echo api_get_self(); ?>">
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<input type="hidden" name="fromExercise" value="<?php echo $fromExercise; ?>">
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<table class="data_table">
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<tr>
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<td colspan="<?php echo $fromExercise?2:3; ?>" align="right">
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<?php echo get_lang('Filter'); ?> : <select name="exerciseId">
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<option value="0">-- <?php echo get_lang('AllExercises'); ?> --</option>
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<option value="-1" <?php if($exerciseId == -1) echo 'selected="selected"'; ?>>-- <?php echo get_lang('OrphanQuestions'); ?> --</option>
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<?php
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$sql="SELECT id,title FROM $TBL_EXERCICES WHERE id<>'".Database::escape_string($fromExercise)."' AND active<>'-1' ORDER BY id";
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$result=api_sql_query($sql,__FILE__,__LINE__);
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// shows a list-box allowing to filter questions
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while($row=Database::fetch_array($result))
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{
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?>
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<option value="<?php echo $row['id']; ?>" <?php if($exerciseId == $row['id']) echo 'selected="selected"'; ?>><?php echo $row['title']; ?></option>
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<?php
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}
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?>
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</select> <input type="submit" value="<?php echo get_lang('Ok'); ?>">
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</td>
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</tr>
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<?php
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$from=$page*$limitQuestPage;
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// if we have selected an exercise in the list-box 'Filter'
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if($exerciseId > 0)
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{
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$sql="SELECT id,question,type FROM $TBL_EXERCICE_QUESTION,$TBL_QUESTIONS WHERE question_id=id AND exercice_id='".Database::escape_string($exerciseId)."' ORDER BY question_order";
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}
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// if we have selected the option 'Orphan questions' in the list-box 'Filter'
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elseif($exerciseId == -1)
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{
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$sql='SELECT id, question, type, exercice_id FROM '.$TBL_QUESTIONS.' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions ON questions.id=quizz_questions.question_id AND exercice_id IS NULL';
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}
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// if we have not selected any option in the list-box 'Filter'
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else
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{
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$sql="SELECT id,question,type FROM $TBL_QUESTIONS";
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// forces the value to 0
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$exerciseId=0;
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}
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$result=api_sql_query($sql,__FILE__,__LINE__);
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$nbrQuestions=Database::num_rows($result);
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echo '<tr>',
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'<td colspan="',($fromExercise?2:3),'">',
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'<table border="0" cellpadding="0" cellspacing="0" width="100%">',
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'<tr>',
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'<td>';
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if(!empty($fromExercise))
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{
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echo '<a href="admin.php?',api_get_cidreq(),'&exerciseId=',$fromExercise,'"><<',get_lang('GoBackToEx'),'</a>';
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}
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else
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{
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echo '<a href="admin.php?',api_get_cidreq(),'&newQuestion=yes">',get_lang('NewQu'),'</a>';
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}
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echo '</td>',
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'<td align="right">';
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if(!empty($page))
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{
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echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page-1),'"><< ',get_lang('PreviousPage'),'</a> |';
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}
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elseif($nbrQuestions > $limitQuestPage)
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{
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echo '<< ',get_lang('PreviousPage'),' |';
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}
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if($nbrQuestions > $limitQuestPage)
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{
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echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page+1),'">',get_lang('NextPage'),' >></a>';
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}
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elseif($page)
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{
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echo ' ',get_lang('NextPage'),' >>';
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}
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echo '</td>
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</tr>
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</table>
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</td>
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</tr>
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<tr bgcolor="#e6e6e6">';
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if(!empty($fromExercise))
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{
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echo '<th>',get_lang('Question'),'</th>',
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'<th>',get_lang('Reuse'),'</th>';
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}
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else
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{
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echo '<td width="60%" align="center">',get_lang('Question'),'</td>',
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'<td width="20%" align="center">',get_lang('Modify'),'</td>',
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'<td width="20%" align="center">',get_lang('Delete'),'</td>';
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}
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echo '</tr>';
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$i=1;
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while ($row = Database::fetch_array($result))
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{
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// if we come from the exercise administration to get a question,
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// don't show the questions already used by that exercise
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if (!$fromExercise || !isset($objExercise) || !($objExercise instanceOf Exercise) || (!$objExercise->isInList($row['id'])))
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{
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echo '<tr ',($i%2==0?'class="row_odd"':'class="row_even"'),'>';
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echo ' <td><a href="admin.php?',api_get_cidreq(),'&editQuestion=',$row['id'],'&fromExercise=',$fromExercise,'">',$row['question'],'</a></td>';
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echo ' <td>';
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if (empty($fromExercise))
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{
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echo '<a href="admin.php?',api_get_cidreq(),'?editQuestion=',$row['id'],'"><img src="../img/edit.gif" border="0" alt="',get_lang('Modify'),'"></a>',
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'</td>',
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'<td align="center">',
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'<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&delete=',$row['id'],'" onclick="javascript:if(!confirm(\'',addslashes(htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)),'\')) return false;"><img src="../img/delete.gif" border="0" alt="',get_lang('Delete'),'"></a>',
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'</td>';
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}
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else
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{
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echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&recup=',$row['id'],'&fromExercise=',$fromExercise,'"><img src="../img/view_more_stats.gif" border="0" alt="',get_lang('Reuse'),'"></a>';
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echo '</td>';
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}
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echo '</tr>';
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// skips the last question, that is only used to know if we have or not to create a link "Next page"
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if($i == $limitQuestPage)
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{
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break;
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}
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$i++;
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}
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}
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if(!$nbrQuestions)
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{
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echo '<tr>',
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'<td colspan="',($fromExercise?2:3),'">',get_lang('NoQuestion'),'</td>',
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'</tr>';
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}
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echo '</table>',
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'</form>';
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Display::display_footer();
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}
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// if not admin of course
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else
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{
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api_not_allowed(true);
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}
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?>
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