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- <?php
- /*
- DOKEOS - elearning and course management software
- For a full list of contributors, see documentation/credits.html
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- See "documentation/licence.html" more details.
- Contact:
- Dokeos
- Rue des Palais 44 Paleizenstraat
- B-1030 Brussels - Belgium
- Tel. +32 (2) 211 34 56
- */
- /**
- * Question Pool
- * This script allows administrators to manage questions and add them into their exercises.
- * One question can be in several exercises
- * @package dokeos.exercise
- * @author Olivier Brouckaert
- * @version $Id: question_pool.php 13476 2007-10-12 11:38:16Z elixir_inter $
- */
- // name of the language file that needs to be included
- $language_file='exercice';
- include('exercise.class.php');
- include('question.class.php');
- include('answer.class.php');
- include('../inc/global.inc.php');
- $this_section=SECTION_COURSES;
- $is_allowedToEdit=api_is_allowed_to_edit();
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
- if ( empty ( $delete ) ) {
- $delete = $_GET['delete'];
- }
- if ( empty ( $recup ) ) {
- $recup = $_GET['recup'];
- }
- if ( empty ( $fromExercise ) ) {
- $fromExercise = $_GET['fromExercise'];
- }
- if(isset($_GET['exerciseId'])){
- $exerciseId = $_GET['exerciseId'];
- }
- // maximum number of questions on a same page
- $limitQuestPage=50;
- // document path
- $documentPath=api_get_path(SYS_COURSE_PATH).$_course['path'].'/document';
- // picture path
- $picturePath=$documentPath.'/images';
- if($is_allowedToEdit)
- {
- // deletes a question from the data base and all exercises
- if($delete)
- {
- // construction of the Question object
- // if the question exists
- if($objQuestionTmp = Question::read($delete))
- {
- // deletes the question from all exercises
- $objQuestionTmp->delete();
- }
- // destruction of the Question object
- unset($objQuestionTmp);
- }
- // gets an existing question and copies it into a new exercise
- elseif($recup && $fromExercise)
- {
- // if the question exists
- if($objQuestionTmp = Question :: read($recup))
- {
- // adds the exercise ID represented by $fromExercise into the list of exercises for the current question
- $objQuestionTmp->addToList($fromExercise);
- }
- // destruction of the Question object
- unset($objQuestionTmp);
- // adds the question ID represented by $recup into the list of questions for the current exercise
- $objExercise->addToList($recup);
- api_session_register('objExercise');
- header("Location: admin.php?exerciseId=$fromExercise");
- exit();
- }
- }
- $nameTools=get_lang('QuestionPool');
- $interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
- // if admin of course
- if($is_allowedToEdit)
- {
- Display::display_header($nameTools,"Exercise");
- ?>
- <h3>
- <?php echo $nameTools; ?>
- </h3>
- <form method="get" action="<?php echo api_get_self(); ?>">
- <input type="hidden" name="fromExercise" value="<?php echo $fromExercise; ?>">
- <table class="data_table">
- <tr>
- <td colspan="<?php echo $fromExercise?2:3; ?>" align="right">
- <?php echo get_lang('Filter'); ?> : <select name="exerciseId">
- <option value="0">-- <?php echo get_lang('AllExercises'); ?> --</option>
- <option value="-1" <?php if($exerciseId == -1) echo 'selected="selected"'; ?>>-- <?php echo get_lang('OrphanQuestions'); ?> --</option>
- <?php
- $sql="SELECT id,title FROM $TBL_EXERCICES WHERE id<>'$fromExercise' AND active<>'-1' ORDER BY id";
- $result=api_sql_query($sql,__FILE__,__LINE__);
- // shows a list-box allowing to filter questions
- while($row=mysql_fetch_array($result))
- {
- ?>
- <option value="<?php echo $row['id']; ?>" <?php if($exerciseId == $row['id']) echo 'selected="selected"'; ?>><?php echo $row['title']; ?></option>
- <?php
- }
- ?>
- </select> <input type="submit" value="<?php echo get_lang('Ok'); ?>">
- </td>
- </tr>
- <?php
- $from=$page*$limitQuestPage;
- // if we have selected an exercise in the list-box 'Filter'
- if($exerciseId > 0)
- {
- $sql="SELECT id,question,type FROM $TBL_EXERCICE_QUESTION,$TBL_QUESTIONS WHERE question_id=id AND exercice_id='$exerciseId' ORDER BY position";
- }
- // if we have selected the option 'Orphan questions' in the list-box 'Filter'
- elseif($exerciseId == -1)
- {
- $sql='SELECT id, question, type, exercice_id FROM '.$TBL_QUESTIONS.' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions ON questions.id=quizz_questions.question_id AND exercice_id IS NULL';
- }
- // if we have not selected any option in the list-box 'Filter'
- else
- {
- $sql="SELECT id,question,type FROM $TBL_QUESTIONS";
- // forces the value to 0
- $exerciseId=0;
- }
-
- $result=api_sql_query($sql,__FILE__,__LINE__);
- $nbrQuestions=mysql_num_rows($result);
- ?>
- <tr>
- <td colspan="<?php echo $fromExercise?2:3; ?>">
- <table border="0" cellpadding="0" cellspacing="0" width="100%">
- <tr>
- <td>
- <?php
- if($fromExercise)
- {
- ?>
- <a href="admin.php?exerciseId=<?php echo $fromExercise; ?>"><< <?php echo get_lang('GoBackToEx'); ?></a>
- <?php
- }
- else
- {
- ?>
- <a href="admin.php?newQuestion=yes"><?php echo get_lang('NewQu'); ?></a>
- <?php
- }
- ?>
- </td>
- <td align="right">
- <?php
- if($page)
- {
- ?>
- <a href="<?php echo api_get_self(); ?>?exerciseId=<?php echo $exerciseId; ?>&fromExercise=<?php echo $fromExercise; ?>&page=<?php echo ($page-1); ?>"><< <?php echo get_lang('PreviousPage'); ?></a> |
- <?php
- }
- elseif($nbrQuestions > $limitQuestPage)
- {
- ?>
- << <?php echo get_lang('PreviousPage'); ?> |
- <?php
- }
- if($nbrQuestions > $limitQuestPage)
- {
- ?>
- <a href="<?php echo api_get_self(); ?>?exerciseId=<?php echo $exerciseId; ?>&fromExercise=<?php echo $fromExercise; ?>&page=<?php echo ($page+1); ?>"><?php echo get_lang('NextPage'); ?> >></a>
- <?php
- }
- elseif($page)
- {
- ?>
- <?php echo get_lang('NextPage'); ?> >>
- <?php
- }
- ?>
- </td>
- </tr>
- </table>
- </td>
- </tr>
- <tr bgcolor="#E6E6E6">
- <?php
- if($fromExercise)
- {
- ?>
- <th><?php echo get_lang('Question'); ?></th>
- <th><?php echo get_lang('Reuse'); ?></th>
- <?php
- }
- else
- {
- ?>
- <td width="60%" align="center"><?php echo get_lang('Question'); ?></td>
- <td width="20%" align="center"><?php echo get_lang('Modify'); ?></td>
- <td width="20%" align="center"><?php echo get_lang('Delete'); ?></td>
- <?php
- }
- ?>
- </tr>
- <?php
- $i=1;
- while($row=mysql_fetch_array($result))
- {
- // if we come from the exercise administration to get a question, doesn't show the question already used by that exercise
- if(!$fromExercise || !$objExercise->isInList($row[id]))
- {
- ?>
- <tr <?php if($i%2==0) echo 'class="row_odd"'; else echo 'class="row_even"'; ?>>
- <td><a href="admin.php?editQuestion=<?php echo $row[id]; ?>&fromExercise=<?php echo $fromExercise; ?>"><?php echo $row[question]; ?></a></td>
- <td>
- <?php
- if(!$fromExercise)
- {
- ?>
- <a href="admin.php?editQuestion=<?php echo $row[id]; ?>"><img src="../img/edit.gif" border="0" alt="<?php echo get_lang('Modify'); ?>"></a>
- <?php
- }
- else
- {
- ?>
- <a href="<?php echo $phpSelf; ?>?recup=<?php echo $row[id]; ?>&fromExercise=<?php echo $fromExercise; ?>"><img src="../img/view_more_stats.gif" border="0" alt="<?php echo get_lang('Reuse'); ?>"></a>
- <?php
- }
- ?>
- </td>
- <?php
- if(!$fromExercise)
- {
- ?>
- <td align="center">
- <a href="<?php echo api_get_self(); ?>?exerciseId=<?php echo $exerciseId; ?>&delete=<?php echo $row[id]; ?>" onclick="javascript:if(!confirm('<?php echo addslashes(htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)); ?>')) return false;"><img src="../img/delete.gif" border="0" alt="<?php echo get_lang('Delete'); ?>"></a>
- </td>
- <?php
- }
- ?>
- </tr>
- <?php
- // skips the last question, that is only used to know if we have or not to create a link "Next page"
- if($i == $limitQuestPage)
- {
- break;
- }
- $i++;
- }
- }
- if(!$nbrQuestions)
- {
- ?>
- <tr>
- <td colspan="<?php echo $fromExercise?2:3; ?>"><?php echo get_lang('NoQuestion'); ?></td>
- </tr>
- <?php
- }
- ?>
- </table>
- </form>
- <?php
- Display::display_footer();
- }
- // if not admin of course
- else
- {
- api_not_allowed(true);
- }
- ?>
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