Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/exercice/question_pool.php

579 lines
23 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Question Pool
* This script allows administrators to manage questions and add them into their exercises.
* One question can be in several exercises
* @package chamilo.exercise
* @author Olivier Brouckaert
* @author Julio Montoya adding support to query all questions from all session, courses, exercises
*/
// name of the language file that needs to be included
$language_file='exercice';
require_once 'exercise.class.php';
require_once 'exercise.lib.php';
require_once 'question.class.php';
require_once 'answer.class.php';
require_once '../inc/global.inc.php';
require_once api_get_path(LIBRARY_PATH).'course.lib.php';
require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
$this_section=SECTION_COURSES;
$is_allowedToEdit=api_is_allowed_to_edit(null,true);
if ( empty ( $delete ) ) {
$delete = intval($_GET['delete']);
}
if ( empty ( $recup ) ) {
$recup = intval($_GET['recup']);
}
if ( empty ( $fromExercise ) ) {
$fromExercise = intval($_GET['fromExercise']);
}
if(isset($_GET['exerciseId'])){
$exerciseId = intval($_GET['exerciseId']);
}
if(isset($_GET['exerciseLevel'])){
$exerciseLevel = intval($_REQUEST['exerciseLevel']);
}
if(isset($_GET['answerType'])){
$answerType = intval($_REQUEST['answerType']);
}
$page = 0;
if(!empty($_GET['page'])){
$page = intval($_GET['page']);
}
$copy_question = 0;
if(!empty($_GET['copy_question'])){
$copy_question = intval($_GET['copy_question']);
}
//only that type of question
if(!empty($_GET['type'])){
$type = intval($_GET['type']);
}
$session_id = intval($_GET['session_id']);
$selected_course = intval($_GET['selected_course']);
// 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(!($objExcercise instanceOf Exercise) && !empty($fromExercise)) {
$objExercise = new Exercise();
$objExercise->read($fromExercise);
}
if(!($objExcercise instanceOf Exercise) && !empty($exerciseId)) {
$objExercise = new Exercise();
$objExercise->read($exerciseId);
}
if ($is_allowedToEdit) {
//Duplicating a Question
if ($copy_question != 0 && isset($fromExercise)) {
$origin_course_id = intval($_GET['course_id']);
$origin_course_info = api_get_course_info_by_id($origin_course_id);
$current_course = api_get_course_info();
$old_question_id = $copy_question;
//Reading the source question
$old_question_obj = Question::read($old_question_id, $origin_course_id);
$old_question_obj->updateTitle($old_question_obj->selectTitle().' - '.get_lang('Copy'));
//Duplicating the source question, in the current course
$new_id = $old_question_obj->duplicate($current_course);
//Reading new question
$new_question_obj = Question::read($new_id);
$new_question_obj->addToList($fromExercise);
//Reading Answers obj of the current course
$new_answer_obj = new Answer($old_question_id, $origin_course_id);
$new_answer_obj->read();
//Duplicating the Answers in the current course
$new_answer_obj->duplicate($new_id, $current_course);
// destruction of the Question object
unset($new_question_obj);
unset($old_question_obj);
if(!$objExcercise instanceOf Exercise) {
$objExercise = new Exercise();
$objExercise->read($fromExercise);
}
// adds the question ID represented by $recup into the list of questions for the current exercise
//$objExercise->addToList($new_id);
api_session_register('objExercise');
header("Location: admin.php?".api_get_cidreq()."&exerciseId=$fromExercise");
exit();
}
// 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);
} elseif($recup && $fromExercise) {
// gets an existing question and copies it into a new exercise
$objQuestionTmp = Question :: read($recup);
// 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($objQuestionTmp);
if(!$objExcercise instanceOf Exercise) {
$objExercise = new Exercise();
$objExercise->read($fromExercise);
}
// 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?".api_get_cidreq()."&exerciseId=$fromExercise");
exit();
} else if( isset($_POST['recup']) && is_array($_POST['recup']) && $fromExercise) {
$list_recup = $_POST['recup'];
foreach ($list_recup as $recup) {
$recup = intval($recup);
// 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($objQuestionTmp);
if(!$objExcercise instanceOf Exercise) {
$objExercise = new Exercise();
$objExercise->read($fromExercise);
}
// 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?".api_get_cidreq()."&exerciseId=$fromExercise");
exit();
}
}
if (isset($_SESSION['gradebook'])){
$gradebook= $_SESSION['gradebook'];
}
if (!empty($gradebook) && $gradebook=='view') {
$interbreadcrumb[]= array ('url' => '../gradebook/'.Security::remove_XSS($_SESSION['gradebook_dest']),'name' => get_lang('ToolGradebook'));
}
$nameTools=get_lang('QuestionPool');
$interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
// if admin of course
if (!$is_allowedToEdit) {
api_not_allowed(true);
}
$htmlHeadXtra[] = ' <script type="text/javascript">
function submit_form(obj) {
document.question_pool.submit();
}
</script>';
Display::display_header($nameTools,'Exercise');
echo '<h3>'.$nameTools.'</h3>';
echo '<div class="actions">';
if (isset($type)) {
$url = api_get_self().'?type=1';
} else {
$url = api_get_self();
}
echo '<form name="question_pool" method="GET" action="'.$url.'" style="display:inline;">';
echo '<a href="admin.php?'.api_get_cidreq().'&exerciseId='.$fromExercise.'">'.Display::return_icon('back.png', get_lang('GoBackToQuestionList'),'','32').'</a>';
/*if(!empty($fromExercise)) {
echo '<a href="admin.php?',api_get_cidreq(),'&exerciseId=',$fromExercise,'">'.Display::return_icon('back.png', get_lang('GoBackToQuestionList')),get_lang('GoBackToQuestionList'),'</a>';
} else {
echo '<a href="admin.php?'.api_get_cidreq().'&newQuestion=yes">'.Display::return_icon('more.png'),get_lang('NewQu').'</a>';
}*/
if (isset($type)) {
echo '<input type="hidden" name="type" value="1">';
}
//echo '<input type="hidden" name="cidReq" value="'.api_get_cidreq().'">';
echo '<input type="hidden" name="fromExercise" value="'.$fromExercise.'">';
//Session list
$session_list = SessionManager::get_sessions_by_coach(api_get_user_id());
$session_select_list = array();
foreach($session_list as $item) {
$session_select_list[$item['id']] = $item['name'];
}
echo get_lang('Session').' ';
echo Display::select('session_id', $session_select_list, $session_id, array('onchange'=>'submit_form(this);'));
//Course list
if (!empty($session_id) && $session_id != '-1') {
$course_list = SessionManager::get_course_list_by_session_id($session_id);
} else {
$course_list = CourseManager::get_course_list_of_user_as_course_admin(api_get_user_id());
}
$course_select_list = array();
foreach ($course_list as $item) {
$course_select_list[$item['id']] = $item['title'];
}
echo ' '.get_lang('Course').' ';
echo Display::select('selected_course', $course_select_list, $selected_course, array('onchange'=>'submit_form(this);'));
if (empty($selected_course) || $selected_course == '-1') {
$course_info = api_get_course_info();
$db_name = $course_info['db_name'];
} else {
$course_info = CourseManager::get_course_information_by_id($selected_course);
$db_name = $course_info['db_name'];
}
//Redefining table calls
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION, $db_name);
$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST, $db_name);
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $db_name);
$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER, $db_name);
$exercise_list = get_all_exercises($course_info, $session_id);
echo '<input type="hidden" name="fromExercise" value="'.$fromExercise.'">';
echo '<br/>';
//Exercise List
echo ' '.get_lang('Exercice').' ';
$my_exercise_list = array();
$my_exercise_list['0'] = get_lang('AllExercises');
$my_exercise_list['-1'] = get_lang('OrphanQuestions');
if (is_array($exercise_list)) {
foreach($exercise_list as $row) {
if ($row['id'] != $fromExercise) {
$my_exercise_list[$row['id']] = $row['title'];
}
}
}
echo Display::select('exerciseId', $my_exercise_list, $exerciseId, array('onchange'=>'submit_form(this);'), false);
echo ' '.get_lang('Difficulty').' ';
//Difficulty list (only from 1 to 5)
echo Display::select('exerciseLevel', array(1=>1,2=>2,3=>3,4=>4,5=>5), $exerciseLevel, array('onchange'=>'submit_form(this);'));
$question_list = Question::get_types_information();
$new_question_list = array();
foreach($question_list as $key=>$item) {
$new_question_list[$key] = get_lang($item[1]);
}
//Answer type list
echo ' '.get_lang('AnswerType').' ';
echo Display::select('answerType', $new_question_list, $answerType, array('onchange'=>'submit_form(this);'));
?>
<button class="save" type="submit" name="name" value="<?php echo get_lang('Ok') ?>"><?php echo get_lang('Filter') ?></button>
</form>
</div>
<form method="post" action="<?php echo $url.'?'.api_get_cidreq().'&fromExercise='.$fromExercise; ?>" >
<?php
echo '<table class="data_table">';
$from=$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='".Database::escape_string($exerciseId)."' ORDER BY question_order LIMIT $from, ".($limitQuestPage + 1);
$where = '';
if (isset($type) && $type==1) {
$where = ' type = 1 AND ';
}
if (isset($exerciseLevel) && $exerciseLevel != -1) {
$where .= ' level='.$exerciseLevel.' AND ';
}
if (isset($answerType) && $answerType != -1) {
$where .= ' type='.$answerType.' AND ';
}
$sql="SELECT id,question,type,level
FROM $TBL_EXERCICE_QUESTION,$TBL_QUESTIONS
WHERE $where question_id=id AND exercice_id='".Database::escape_string($exerciseId)."'
ORDER BY question_order";
$result=Database::query($sql);
while($row = Database::fetch_array($result, 'ASSOC')) {
$main_question_list[] = $row;
}
} elseif($exerciseId == -1) {
// if we have selected the option 'Orphan questions' in the list-box 'Filter'
// 1. Old logic: When a test is deleted, the correspondent records in 'quiz' and 'quiz_rel_question' tables are deleted.
//$sql='SELECT id, question, type, exercice_id FROM '.$TBL_QUESTIONS.' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions ON questions.id=quizz_questions.question_id WHERE exercice_id IS NULL LIMIT $from, '.($limitQuestPage + 1);
// 2. New logic: When a test is deleted, the field 'active' takes value -1 (it is in the correspondent record in 'quiz' table).
//$sql='SELECT questions.id, questions.question, questions.type, quizz_questions.exercice_id FROM '.$TBL_QUESTIONS.
// ' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions ON questions.id=quizz_questions.question_id LEFT JOIN '.$TBL_EXERCICES.
// ' as exercices ON exercice_id=exercices.id WHERE exercices.active = -1 LIMIT $from, '.($limitQuestPage + 1);
// 3. This is more safe to changes, it is a mix between old and new logic.
/*$sql='SELECT questions.id, questions.question, questions.type, quizz_questions.exercice_id FROM '.$TBL_QUESTIONS.
' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions ON questions.id=quizz_questions.question_id LEFT JOIN '.$TBL_EXERCICES.
' as exercices ON exercice_id=exercices.id WHERE quizz_questions.exercice_id IS NULL OR exercices.active = -1 LIMIT '.$from.', '.($limitQuestPage + 1);
*/
/* 4. Query changed because of the Level feature implemented
$sql='SELECT id, question, type, exercice_id,level FROM '.$TBL_QUESTIONS.' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions
ON questions.id=quizz_questions.question_id AND exercice_id IS NULL '.
(!is_null($exerciseLevel) && $exerciseLevel >= 0 ? 'WHERE level=\''.$exerciseLevel.'\' ' : '');
*/
// 5. this is the combination of the 3 and 4 query because of the level feature implementation
// we filter the type of question, because in the DirectFeedback we can only add questions with type=1 = UNIQUE_ANSWER
$type_where= '';
if (isset($type) && $type==1) {
$type_where = ' AND questions.type = 1 ';
}
$level_where = '';
if (isset($exerciseLevel) && $exerciseLevel!= -1 ) {
$level_where = ' level='.$exerciseLevel.' AND ';
}
$answer_where = '';
if (isset($answerType) && $answerType!= -1 ) {
$answer_where = ' questions.type='.$answerType.' AND ';
}
$sql='SELECT questions.id, questions.question, questions.type, quizz_questions.exercice_id , level, session_id
FROM '.$TBL_QUESTIONS.' as questions LEFT JOIN '.$TBL_EXERCICE_QUESTION.' as quizz_questions
ON questions.id=quizz_questions.question_id LEFT JOIN '.$TBL_EXERCICES.' as exercices
ON exercice_id=exercices.id
WHERE '.$answer_where.' '.$level_where.' (quizz_questions.exercice_id IS NULL OR exercices.active = -1 ) '.$type_where.'
LIMIT '.$from.', '.($limitQuestPage + 1);
} else {
// if we have not selected any option in the list-box 'Filter'
//$sql="SELECT id,question,type FROM $TBL_QUESTIONS LIMIT $from, ".($limitQuestPage + 1);
$filter = '';
if (isset($type) && $type==1){
$filter .= ' AND qu.type = 1 ';
}
if (isset($exerciseLevel) && $exerciseLevel != -1) {
$filter .= ' AND level='.$exerciseLevel.' ';
}
if (isset($answerType) && $answerType != -1) {
$filter .= ' AND qu.type='.$answerType.' ';
}
$new_limit_page = $limitQuestPage + 1;
if ($session_id != 0) {
$main_question_list = array();
if (!empty($course_list))
foreach ($course_list as $course_item) {
if (!empty($selected_course) && $selected_course != '-1') {
if ($selected_course != $course_item['id']) {
continue;
}
}
$exercise_list = get_all_exercises($course_item, $session_id);
//var_dump($exercise_list );
if (!empty($exercise_list)) {
foreach ($exercise_list as $exercise) {
$my_exercise = new Exercise($course_item['id']);
$my_exercise->read($exercise['id']);
if (!empty($my_exercise)) {
if (!empty($my_exercise->questionList)) {
foreach ($my_exercise->questionList as $question_id) {
$question_obj = Question::read($question_id, $course_item['id']);
if ($exerciseLevel != '-1')
if ($exerciseLevel != $question_obj->level) {
continue;
}
if ($answerType != '-1')
if ($answerType != $question_obj->type) {
continue;
}
$question_row = array('id'=>$question_obj->id, 'question'=>$question_obj->question, 'type'=>$question_obj->type, 'level'=>$question_obj->level, 'exercise_id'=>$exercise['id']);
$main_question_list[] = $question_row;
}
}
}
}
}
}
} else {
//By default
$sql="SELECT qu.id, question, qu.type, level, q.session_id FROM $TBL_QUESTIONS as qu, $TBL_EXERCICE_QUESTION as qt, $TBL_EXERCICES as q
WHERE q.id=qt.exercice_id AND qu.id=qt.question_id AND qt.exercice_id<>".$fromExercise." $filter ORDER BY session_id ASC LIMIT $from, $new_limit_page";
}
// forces the value to 0
//echo $sql;
$exerciseId=0;
}
$result=Database::query($sql);
//$nbrQuestions=Database::num_rows($result);
$nbrQuestions=count($main_question_list);
echo '<tr>',
'<td colspan="',($fromExercise?4:4),'">',
'<table border="0" cellpadding="0" cellspacing="0" width="100%">',
'<tr>',
'<td>';
echo '</td>',
'<td align="right">';
if(!empty($page)) {
echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page-1),'&answerType=',$answerType,'&exerciseLevel='.$exerciseLevel.'">';
echo Display::return_icon('action_prev.png');
echo '&nbsp;'.get_lang('PreviousPage'),'</a> | ';
} elseif($nbrQuestions > $limitQuestPage) {
echo Display::return_icon('action_prev_na.png');
echo '&nbsp;'.get_lang('PreviousPage'),' | ';
}
if($nbrQuestions > $limitQuestPage) {
echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page+1),'&answerType=',$answerType,'&exerciseLevel='.$exerciseLevel.'">',get_lang('NextPage').'&nbsp;';
echo Display::return_icon('action_next.png');
echo '</a>';
} elseif($page) {
echo get_lang('NextPage');
echo '&nbsp;'.Display::return_icon('action_next_na.png');
}
echo '</td>
</tr>
</table>
</td>
</tr>
<tr bgcolor="#e6e6e6">';
if(!empty($fromExercise)) {
if (api_get_session_id() == 0 ){
echo '<th width="4%"> </th>';
}
echo '<th>',get_lang('Question'),'</th>',
'<th>',get_lang('Level'),'</th>',
'<th>',get_lang('Reuse'),'</th>';
} else {
echo '<td width="60%" align="center">',get_lang('Question'),'</td>',
'<td width="20%" align="center">',get_lang('Modify'),'</td>',
'<td width="16%" align="center">',get_lang('Delete'),'</td>';
}
echo '</tr>';
$i=1;
$session_id = api_get_session_id();
if (!empty($main_question_list))
foreach ($main_question_list as $row) {
// if we come from the exercise administration to get a question,
// don't show the questions already used by that exercise
/*if (!$fromExercise) {echo '1'; }
if (!isset($objExercise)){echo '2';}
if (!($objExercise instanceOf Exercise)){echo '3';}
if (!$objExercise->isInList($row['id'])) {echo '4';}
*/
// original recipe -
//if (!$fromExercise || !isset($objExercise) || !($objExercise instanceOf Exercise) || (!$objExercise->isInList($row['id'])))
if (!$fromExercise || !isset($objExercise) || !($objExercise instanceOf Exercise) || (is_array($objExercise->questionList)) ) {
echo '<tr ',($i%2==0?'class="row_odd"':'class="row_even"'),'>';
if (api_get_session_id() == 0 ){
echo '<td align="center"> <input type="checkbox" value="'.$row['id'].'" name="recup[]"/></td>';
}
echo ' <td><a href="admin.php?',api_get_cidreq(),'&editQuestion=',$row['id'],'&fromExercise='.$fromExercise.'&answerType='.$row['type'].'">',$row['question'],'</a></td>';
echo ' <td align="center" >';
if (empty($fromExercise)) {
echo '<a href="admin.php?'.api_get_cidreq().'&amp;editQuestion=',$row['id'],'"><img src="../img/edit.gif" border="0" alt="',get_lang('Modify'),'"></a>',
'</td>',
'<td align="center">',
'<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&delete=',$row['id'],'" onclick="javascript:if(!confirm(\'',addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)),'\')) return false;"><img src="../img/delete.gif" border="0" alt="',get_lang('Delete'),'"></a>';
//'<a href="',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&delete=',$row['id'],'" onclick="javascript:if(!confirm(\'',addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)),'\')) return false;"><img src="../img/delete.gif" border="0" alt="',get_lang('Delete'),'"></a>';
} else {
echo $row['level'],'</td>',
'<td align="center">';
echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&amp;copy_question='.$row['id'].'&course_id='.$selected_course.'&fromExercise=',$fromExercise,'">';
echo ' '.Display::return_icon('cd.gif', get_lang('ReUseACopyInCurrentTest'));
echo '</a> ';
if ($row['session_id'] == $session_id) {
if ($selected_course == api_get_course_int_id()) {
echo '<a href="',api_get_self(),'?',api_get_cidreq(),'&recup=',$row['id'],'&fromExercise=',$fromExercise,'"><img src="../img/view_more_stats.gif" border="0" title="'.get_lang('InsertALinkToThisQuestionInTheExercise').'" alt="'.get_lang('InsertALinkToThisQuestionInTheExercise').'"></a>';
}
}
}
echo '</td>';
echo '</tr>';
// 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) {
echo '<tr>',
'<td colspan="',($fromExercise?4:4),'">',get_lang('NoQuestion'),'</td>',
'</tr>';
}
echo '</table>';
if (api_get_session_id() == 0 ){
echo '<div style="width:100%; border-top:1px dotted #4171B5;">
<button class="save" type="submit">'.get_lang('Reuse').'</button>
</div></form>';
}
Display::display_footer();