<?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
*/
/**
* Code
*/
// 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).'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 ) ) {
$fromExercise = intval($_REQUEST['fromExercise']);
}
if(isset($_GET['exerciseId'])){
$exerciseId = intval($_GET['exerciseId']);
}
$exerciseLevel = -1;
if(isset($_REQUEST['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 = 20;
// 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);
}
$nameTools = get_lang('QuestionPool');
$interbreadcrumb[] = array("url" => "exercice.php","name" => get_lang('Exercices'));
$interbreadcrumb[] = array("url" => "admin.php?exerciseId=".$objExercise->id, "name" => $objExercise->name);
if ($is_allowedToEdit) {
//Duplicating a Question
if (!isset($_POST['recup']) & & $copy_question != 0 & & isset($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, $origin_course_id);
if ($old_question_obj) {
$old_question_obj->updateTitle($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);
}
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 $course_id => $question_data) {
$origin_course_id = intval($course_id);
$origin_course_info = api_get_course_info_by_id($origin_course_id);
$current_course = api_get_course_info();
foreach ($question_data as $old_question_id) {
/*
$recup = intval($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);
*/
//Reading the source question
$old_question_obj = Question::read($old_question_id, $origin_course_id);
if ($old_question_obj) {
$old_question_obj->updateTitle($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);
}
}
}
}
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'));
}
// 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');
// Menu
echo '< div class = "actions" > ';
if (isset($type)) {
$url = api_get_self().'?type=1';
} else {
$url = api_get_self();
}
echo '< a href = "admin.php?'.api_get_cidreq().'&exerciseId='.$fromExercise.'" > '.Display::return_icon('back.png', get_lang('GoBackToQuestionList'),'','32').'< / a > ';
echo '< / div > ';
//Title
echo '< h2 > '.$nameTools.'< / h2 > ';
//Form
echo '< form name = "question_pool" method = "GET" action = "'.$url.'" > ';
if (isset($type)) {
echo '< input type = "hidden" name = "type" value = "1" > ';
}
echo '< input type = "hidden" name = "fromExercise" value = "'.$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'];
}
$select_session_html = Display::select('session_id', $session_select_list, $session_id, array('class'=>'chzn-select','onchange'=>'submit_form(this);'));
echo Display::form_row(get_lang('Session'), $select_session_html);
//Course list
if (!empty($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'];
}
$select_course_html = Display::select('selected_course', $course_select_list, $selected_course, array('class'=>'chzn-select','onchange'=>'submit_form(this);'));
echo Display::form_row(get_lang('Course'), $select_course_html);
if (empty($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);
//Exercise List
$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'];
}
}
}
$select_exercise_html = Display::select('exerciseId', $my_exercise_list, $exerciseId, array('class'=>'chzn-select','onchange'=>'submit_form(this);'), false);
echo Display::form_row(get_lang('Exercise'), $select_exercise_html);
//Difficulty list (only from 0 to 5)
$select_difficulty_html = Display::select('exerciseLevel', array(-1 => get_lang('All'), 0=>0, 1=>1, 2=>2, 3=>3, 4=>4, 5=>5), $exerciseLevel, array('class'=>'chzn-select', 'onchange'=>'submit_form(this);'), false);
echo Display::form_row(get_lang('Difficulty'), $select_difficulty_html);
//Answer type
$question_list = Question::get_types_information();
$new_question_list = array();
$new_question_list['-1'] = get_lang('All');
$objExercise->feedbacktype;
foreach ($question_list as $key=>$item) {
if ($objExercise->feedbacktype == EXERCISE_FEEDBACK_TYPE_DIRECT) {
if (!in_array($key, array(HOT_SPOT_DELINEATION, UNIQUE_ANSWER))) {
continue;
}
$new_question_list[$key] = get_lang($item[1]);
} else {
if ($key == HOT_SPOT_DELINEATION) {
continue;
}
$new_question_list[$key] = get_lang($item[1]);
}
}
//Answer type list
$select_answer_html = Display::select('answerType', $new_question_list, $answerType, array('class'=>'chzn-select','onchange'=>'submit_form(this);'), false);
echo Display::form_row(get_lang('AnswerType'), $select_answer_html);
$button = '< button class = "save" type = "submit" name = "name" value = "'.get_lang('Filter').'" > '.get_lang('Filter').'< / button > ';
echo Display::form_row('', $button);
?>
< / form >
< div class = "clear" > < / div >
< form method = "post" action = " <?php echo $url . '?' . api_get_cidreq () . '&fromExercise=' . $fromExercise ; ?> " >
<?php
echo '< input type = "hidden" name = "course_id" value = "'.$selected_course.'" > ';
echo '< table class = "data_table" > ';
$from = $page * $limitQuestPage;
$show_pagination = true;
// if we have selected an exercise in the list-box 'Filter'
if ($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 $where question_id=id AND exercice_id='".$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);
$result = Database::query($sql);
while($row = Database::fetch_array($result, 'ASSOC')) {
$main_question_list[] = $row;
}
} else {
$show_pagination = false;
// if we have not selected any option in the list-box 'Filter'
$filter = '';
if (isset($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.' ';
}
if ($objExercise->feedbacktype != EXERCISE_FEEDBACK_TYPE_DIRECT) {
$filter .= ' AND qu.type < > '.HOT_SPOT_DELINEATION.' ';
}
$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, $session_id);
if (!empty($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 != $question_obj->type) {
continue;
}
if ($objExercise->feedbacktype != EXERCISE_FEEDBACK_TYPE_DIRECT) {
if ($question_obj->type == HOT_SPOT_DELINEATION) {
continue;
}
}
$question_row = array( 'id' => $question_obj->id,
'question' => $question_obj->question,
'type' => $question_obj->type,
'level' => $question_obj->level,
'exercise_id' => $exercise['id'],
'course_id' => $course_item['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";
$result = Database::query($sql);
while($row = Database::fetch_array($result, 'ASSOC')) {
$main_question_list[] = $row;
}
}
// forces the value to 0
$exerciseId=0;
}
$nbrQuestions = count($main_question_list);
if ($show_pagination) {
echo '< tr > ',
'< td colspan = "',($fromExercise?4:4),'" > ',
'< table border = "0" cellpadding = "0" cellspacing = "0" width = "100%" > ',
'< tr > < td align = "right" > ';
if(!empty($page)) {
echo '< a href = "',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page-1),'&session_id='.$session_id.'&selected_course='.$selected_course.'&answerType=',$answerType,'&exerciseLevel='.$exerciseLevel.'" > ';
echo Display::return_icon('action_prev.png');
echo ' ';
} elseif($nbrQuestions > $limitQuestPage) {
echo Display::return_icon('action_prev_na.png');
echo ' ';
}
if($nbrQuestions > $limitQuestPage) {
echo '< a href = "',api_get_self(),'?',api_get_cidreq(),'&exerciseId=',$exerciseId,'&fromExercise=',$fromExercise,'&page=',($page+1),'&session_id='.$session_id.'&selected_course='.$selected_course.'&answerType=',$answerType,'&exerciseLevel='.$exerciseLevel.'" > ';
echo Display::return_icon('action_next.png');
echo '< / a > ';
} elseif($page) {
echo Display::return_icon('action_next_na.png');
echo ' ';
}
echo '< / td >
< / tr >
< / table >
< / td >
< / tr > ';
}
echo '< tr > ';
if (!empty($fromExercise)) {
if (api_get_session_id() == 0 ){
echo '< th width = "4%" > < / th > ';
}
echo '< th > ',get_lang('Question'),'< / th > ',
'< th > ',get_lang('Difficulty'),'< / 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) {
$my_course_id = 0;
if (isset($row['course_id'])) {
$my_course_id = $row['course_id'];
}
// if we come from the exercise administration to get a question,
// don't show the questions already used by that exercise
// original recipe -
//if (!$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 = "'.$row['id'].'" name = "recup['.$my_course_id.'][]" / > < / 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($fromExercise)) {
echo '< a href = "admin.php?'.api_get_cidreq().'&editQuestion=',$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 $row['level'],'< / td > ',
'< td align = "center" > ';
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&copy_question='.$row['id'].'&course_id='.$my_course_id.'&fromExercise=',$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();
