<?php // $Id: exercice.php 17787 2009-01-17 00:41:06Z ivantcholakov $

/*
==============================================================================
	Dokeos - elearning and course management software

	Copyright (c) 2004-2008 Dokeos SPRL
	Copyright (c) 2003 Ghent University (UGent)
	Copyright (c) 2001 Universite catholique de Louvain (UCL)
	Copyright (c) various contributors

	For a full list of contributors, see "credits.txt".
	The full license can be read in "license.txt".

	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 the GNU General Public License for more details.

	Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
	Mail: info@dokeos.com
==============================================================================
*/


/**
*	Exercise list: This script shows the list of exercises for administrators and students.
*	@package dokeos.exercise
*	@author Olivier Brouckaert, original author
*	@author Denes Nagy, HotPotatoes integration
*	@author Wolfgang Schneider, code/html cleanup
* 	@version $Id:exercice.php 12269 2007-05-03 14:17:37Z elixir_julian $
*/


// name of the language file that needs to be included
$language_file='exercice';

// including the global library
require_once('../inc/global.inc.php');
require_once ('../gradebook/lib/be.inc.php');
// setting the tabs
$this_section=SECTION_COURSES;

// access control
api_protect_course_script(true);

$show=(isset($_GET['show']) && $_GET['show'] == 'result')?'result':'test'; // moved down to fix bug: http://www.dokeos.com/forum/viewtopic.php?p=18609#18609

// including additional libraries
require_once('exercise.class.php');
require_once('question.class.php');
require_once('answer.class.php');
require_once(api_get_path(LIBRARY_PATH).'fileManage.lib.php');
require_once(api_get_path(LIBRARY_PATH).'fileUpload.lib.php');
require_once('hotpotatoes.lib.php');
require_once(api_get_path(LIBRARY_PATH).'document.lib.php');
include(api_get_path(LIBRARY_PATH).'mail.lib.inc.php');
include(api_get_path(LIBRARY_PATH).'usermanager.lib.php');
include_once(api_get_path(LIBRARY_PATH).'events.lib.inc.php');

/*
-----------------------------------------------------------
	Constants and variables
-----------------------------------------------------------
*/
$is_allowedToEdit = api_is_allowed_to_edit();
$is_tutor = api_is_allowed_to_edit(true);

$TBL_USER          	    = Database::get_main_table(TABLE_MAIN_USER);
$TBL_DOCUMENT          	= Database::get_course_table(TABLE_DOCUMENT);
$TBL_ITEM_PROPERTY      = Database::get_course_table(TABLE_ITEM_PROPERTY);
$TBL_EXERCICE_ANSWER	= Database::get_course_table(TABLE_QUIZ_ANSWER);
$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_TRACK_EXERCICES	= Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
$TBL_TRACK_HOTPOTATOES	= Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_HOTPOTATOES);
$TBL_TRACK_ATTEMPT		= Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$TBL_TRACK_ATTEMPT_RECORDING = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
$TBL_LP_ITEM_VIEW		= Database::get_course_table (TABLE_LP_ITEM_VIEW);
$TBL_LP_VIEW			= Database::get_course_table (TABLE_LP_VIEW);

// document path
$documentPath= api_get_path(SYS_COURSE_PATH).$_course['path']."/document";
// picture path
$picturePath=$documentPath.'/images';
// audio path
$audioPath=$documentPath.'/audio';

// hotpotatoes
$uploadPath = DIR_HOTPOTATOES; //defined in main_api
$exercicePath = api_get_self();
$exfile = explode('/',$exercicePath);
$exfile = strtolower($exfile[sizeof($exfile)-1]);
$exercicePath = substr($exercicePath,0,strpos($exercicePath,$exfile));
$exercicePath = $exercicePath."exercice.php";


// maximum number of exercises on a same page
$limitExPage=50;

// Clear the exercise session
if(isset($_SESSION['objExercise']))		{ api_session_unregister('objExercise');		}
if(isset($_SESSION['objQuestion']))		{ api_session_unregister('objQuestion');		}
if(isset($_SESSION['objAnswer']))		{ api_session_unregister('objAnswer');		}
if(isset($_SESSION['questionList']))	{ api_session_unregister('questionList');	}
if(isset($_SESSION['exerciseResult']))	{ api_session_unregister('exerciseResult');	}

//general POST/GET/SESSION/COOKIES parameters recovery
if ( empty ( $origin ) ) {
    $origin     = $_REQUEST['origin'];
}
if ( empty ($choice ) ) {
    $choice     = $_REQUEST['choice'];
}
if ( empty ( $hpchoice ) ) {
    $hpchoice   = $_REQUEST['hpchoice'];
}
if ( empty ($exerciseId ) ) {
    $exerciseId = Database::escape_string($_REQUEST['exerciseId']);
}
if ( empty ( $file ) ) {
    $file   = Database::escape_string($_REQUEST['file']);
}
$learnpath_id = Database::escape_string($_REQUEST['learnpath_id']);
$learnpath_item_id = Database::escape_string($_REQUEST['learnpath_item_id']);
$page = Database::escape_string($_REQUEST['page']);

if($origin == 'learnpath'){
	$show = 'result';
}

if($_GET['delete']=='delete' && ($is_allowedToEdit || api_is_coach()) && !empty($_GET['did'])){
	$sql='DELETE FROM '.Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES).' WHERE exe_id = '.(int)$_GET['did'];
	api_sql_query ($sql,__FILE__,__LINE__);
	header('Location: exercice.php?cidReq='.htmlentities($_GET['cidReq']).'&show=result');
	exit;
}


if ($show=='result' && $_REQUEST['comments']=='update' && ($is_allowedToEdit || $is_tutor))
{
	$id  = $_GET['exeid'];
	$emailid = $_GET['emailid'];
	$test  = $_GET['test'];
	$from = $_SESSION['_user']['mail'];
	$from_name = $_SESSION['_user']['firstName']." ".$_SESSION['_user']['lastName'];
	$url = api_get_path(WEB_CODE_PATH).'exercice/exercice.php?'.api_get_cidreq().'&show=result';
	$TBL_RECORDING = Database::get_statistic_table('track_e_attempt_recording');
	foreach ($_POST as $key=>$v) {
		$keyexp = explode('_',$key);
		if ($keyexp[0] == "marks") {
			$sql = "select question from $TBL_QUESTIONS where id = '$keyexp[1]'";
			$result =api_sql_query($sql, __FILE__, __LINE__);
			$ques_name = Database::result($result,0,"question");

			$query = "UPDATE $TBL_TRACK_ATTEMPT SET marks = '".Database::escape_string($v)."'
						WHERE question_id = '".Database::escape_string($keyexp[1])."'
						AND exe_id='".Database::escape_string($id)."'";
			api_sql_query($query, __FILE__, __LINE__);

			$qry = 'SELECT sum(marks) as tot
					FROM '.$TBL_TRACK_ATTEMPT.' where exe_id = '.intval($id).'
					GROUP BY question_id';

			$res = api_sql_query($qry,__FILE__,__LINE__);
			$tot = Database::result($res,0,'tot');

			$totquery = "update $TBL_TRACK_EXERCICES set exe_result = '".Database::escape_string($tot)."' where exe_Id='".Database::escape_string($id)."'";
			api_sql_query($totquery, __FILE__, __LINE__);

			$recording_changes = 'INSERT INTO '.$TBL_RECORDING.' ' .
					'(exe_id,
					question_id,
					marks,
					insert_date,
					author)
					VALUES
					('."'$id','".$keyexp[1]."','$v','".date('Y-m-d H:i:s')."','".api_get_user_id()."'".')';
			api_sql_query($recording_changes, __FILE__, __LINE__);
		} else {
		  $query = "UPDATE $TBL_TRACK_ATTEMPT SET teacher_comment = '".Database::escape_string($v)."'
		  			WHERE question_id = '".Database::escape_string($keyexp[1])."'
		  			AND exe_id = '".Database::escape_string($id)."'";
		   api_sql_query($query, __FILE__, __LINE__);

			$recording_changes = 'INSERT INTO '.$TBL_RECORDING.' ' .
					'(exe_id,
					question_id,
					teacher_comment,
					insert_date,
					author)
					VALUES
					('."'$id','".$keyexp[1]."','$v','".date('Y-m-d H:i:s')."','".api_get_user_id()."'".')';
			api_sql_query($recording_changes, __FILE__, __LINE__);

		}

}

$qry = 'SELECT DISTINCT question_id, marks
			FROM '.$TBL_TRACK_ATTEMPT.' where exe_id = '.intval($id).'
			GROUP BY question_id';

$res = api_sql_query($qry,__FILE__,__LINE__);
$tot = 0;
while($row = Database::fetch_array($res,'ASSOC')) {
	$tot += $row ['marks'];
}

$totquery = "UPDATE $TBL_TRACK_EXERCICES SET exe_result = '".Database::escape_string($tot)."' WHERE exe_Id='".Database::escape_string($id)."'";

api_sql_query($totquery, __FILE__, __LINE__);
$subject = get_lang('ExamSheetVCC');
$htmlmessage = '<html>'.
				'<head>' .
				'<style type="text/css">' .
				'<!--' .
				'.body{' .
				'font-family: Verdana, Arial, Helvetica, sans-serif;' .
				'font-weight: Normal;' .
				'color: #000000;' .
				'}' .
				'.style8 {font-family: Verdana, Arial, Helvetica, sans-serif; font-weight: bold; color: #006699; }' .
				'.style10 {' .
				'	font-family: Verdana, Arial, Helvetica, sans-serif;' .
				'	font-size: 12px;' .
				'	font-weight: bold;' .
				'}' .
				'.style16 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px; }' .
				'-->' .
				'</style>' .
				'</head>' .
				'<body>' .
				'<div>' .
				'  <p>'.get_lang('DearStudentEmailIntroduction').'</p>' .
				'  <p class="style10"> '.get_lang('AttemptVCC').' </p>' .
				'  <table width="417">' .
				'    <tr>' .
				'      <td width="229" valign="top" bgcolor="E5EDF8">&nbsp;&nbsp;<span class="style10">'.get_lang('Question').'</span></td>' .
				'      <td width="469" valign="top" bgcolor="#F3F3F3"><span class="style16">#ques_name#</span></td>' .
				'    </tr>' .
				'    <tr>' .
				'      <td width="229" valign="top" bgcolor="E5EDF8">&nbsp;&nbsp;<span class="style10">'.get_lang('Exercice').'</span></td>' .
				'       <td width="469" valign="top" bgcolor="#F3F3F3"><span class="style16">#test#</span></td>' .
				'    </tr>' .
				'  </table>' .
				'  <p>'.get_lang('ClickLinkToViewComment').' <a href="#url#">#url#</a><br />' .
				'    <br />' .
				'  '.get_lang('Regards').' </p>' .
				'  </div>' .
				'  </body>' .
				'  </html>';
$message = '<p>'.sprintf(get_lang('AttemptVCCLong'),$test).' <A href="#url#">#url#</A></p><br />';
$mess= str_replace("#test#",$test,$message);
//$message= str_replace("#ques_name#",$ques_name,$mess);
$message = str_replace("#url#",$url,$mess);
$mess = stripslashes($message);
$headers  = " MIME-Version: 1.0 \r\n";
$headers .= "User-Agent: Dokeos/1.6";
$headers .= "Content-Transfer-Encoding: 7bit";
$headers .= 'From: '.$from_name.' <'.$from.'>' . "\r\n";
$headers="From:$from_name\r\nReply-to: $to\r\nContent-type: text/html; charset=".($charset?$charset:'ISO-8859-15');
//mail($emailid, $subject, $mess,$headers);

api_mail_html($emailid, $emailid, $subject, $mess, $from_name, $from);


if (in_array($origin, array('tracking_course','user_course'))){
		// update score  when you qualify the exercises in Learning path detail
		if (isset($_REQUEST['lp_item_id']) && isset($_REQUEST['lp_item_view_id']) && isset($_REQUEST['student_id']) && isset($_REQUEST['total_score'])) {
			if ($lp_item_id == strval(intval($lp_item_id)) && $lp_item_view_id == strval(intval($lp_item_view_id)) && $student_id == strval(intval($student_id))) {
    			$score = Database::escape_string($_REQUEST['total_score']);			
    			$sql = "UPDATE $TBL_LP_ITEM_VIEW SET score = '$score' WHERE lp_item_id = '$lp_item_id'
    					AND lp_view_id = (SELECT id from $TBL_LP_VIEW  WHERE user_id = '$student_id' and lp_id='$lp_item_view_id')";
    			api_sql_query($sql,__FILE__,__LINE__);	
            }
		}
		//Redirect to the reporting		
		header('location: ../mySpace/myStudents.php?origin='.$origin.'&student='.$_GET['student'].'&details=true&course='.$_GET['course']);
	}
}
if ($_GET['gradebook'] && $_GET['exerciseId']) {
	$interbreadcrumb[]= array (
			'url' => '../gradebook/index.php',
			'name' => get_lang('Gradebook')
		);
}

if ($show!='result') {
	$nameTools=get_lang('Exercices');
} else {
	if($is_allowedToEdit || $is_tutor) {
		$nameTools=get_lang('StudentScore');
		$interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
	} else {
		$nameTools=get_lang('YourScore');
		$interbreadcrumb[]=array("url" => "exercice.php","name" => get_lang('Exercices'));
	}
}

// need functions of statsutils lib to display previous exercices scores
include_once(api_get_path(LIBRARY_PATH).'statsUtils.lib.inc.php');

if ($is_allowedToEdit && !empty($choice) && $choice == 'exportqti2') {
	require_once('export/qti2/qti2_export.php');
	$export = export_exercise($exerciseId,true);

	require_once(api_get_path(LIBRARY_PATH).'pclzip/pclzip.lib.php');
	$garbage_path = api_get_path(GARBAGE_PATH);
	$temp_dir_short = uniqid();
	$temp_zip_dir = $garbage_path."/".$temp_dir_short;
	if(!is_dir($temp_zip_dir)) mkdir($temp_zip_dir);
	$temp_zip_file = $temp_zip_dir."/".md5(time()).".zip";
	$temp_xml_file = $temp_zip_dir."/qti2export_".$exerciseId.'.xml';
	file_put_contents($temp_xml_file,$export);
	$zip_folder=new PclZip($temp_zip_file);
	$zip_folder->add($temp_xml_file, PCLZIP_OPT_REMOVE_ALL_PATH);
	$name = 'qti2_export_'.$exerciseId.'.zip';

	//DocumentManager::string_send_for_download($export,true,'qti2export_'.$exerciseId.'.xml');
	DocumentManager::file_send_for_download($temp_zip_file,true,$name);
	unlink($temp_zip_file);
	unlink($temp_xml_file);
	rmdir($temp_zip_dir);
	exit(); //otherwise following clicks may become buggy
}
if (!empty($_POST['export_user_fields'])) {
	switch ($_POST['export_user_fields']) {
		case 'export_user_fields':
			$_SESSION['export_user_fields'] = true;
			break;
		case 'do_not_export_user_fields':
		default:
			$_SESSION['export_user_fields'] = false;
			break;
	}
}
if (!empty($_POST['export_report']) && $_POST['export_report'] == 'export_report') {
	if(api_is_platform_admin() || api_is_course_admin() || api_is_course_tutor() || api_is_course_coach()) {
		$user_id = null;
		if(empty($_SESSION['export_user_fields'])) $_SESSION['export_user_fields'] = false;
		if(!$is_allowedToEdit and !$is_tutor) {
			$user_id = api_get_user_id();
		}
		require_once('exercise_result.class.php');
		switch($_POST['export_format']) {
			case 'xls':
				$export = new ExerciseResult();
				$export->exportCompleteReportXLS($documentPath, $user_id, $_SESSION['export_user_fields']);
				exit;
				break;
			case 'csv':
			default:
				$export = new ExerciseResult();
				$export->exportCompleteReportCSV($documentPath, $user_id, $_SESSION['export_user_fields']);
				exit;
				break;
		}
	} else {
		api_not_allowed(true);
	}
}

if ($origin != 'learnpath') {
	//so we are not in learnpath tool
	Display::display_header($nameTools,"Exercise");
	if(isset($_GET['message'])) {
		if (in_array($_GET['message'], array('ExerciseEdited'))) {
			Display::display_confirmation_message(get_lang($_GET['message']));
		}
	}

} else {
	echo '<link rel="stylesheet" type="text/css" href="'.api_get_path(WEB_CODE_PATH).'css/default.css"/>';
}

// used for stats
include_once(api_get_path(LIBRARY_PATH).'events.lib.inc.php');

event_access_tool(TOOL_QUIZ);

$fck_attribute['Width'] = '100%';
$fck_attribute['Height'] = '400';
$fck_attribute['ToolbarSet'] = 'Full';

$fck_attribute['Config']['InDocument'] = false;
$fck_attribute['Config']['CreateDocumentWebDir'] = api_get_path('WEB_COURSE_PATH').api_get_course_path().'/document/';
$fck_attribute['Config']['CreateDocumentDir'] = '../../courses/'.api_get_course_path().'/document/';
$fck_attribute['Config']['BaseHref'] = api_get_path('WEB_COURSE_PATH').api_get_course_path().'/';

Display::display_introduction_section(TOOL_QUIZ);

$fck_attribute = null; // Clearing this global variable immediatelly after it has been used.

// selects $limitExPage exercises at the same time
$from=$page*$limitExPage;
$sql="SELECT count(id) FROM $TBL_EXERCICES";
$res = api_sql_query($sql,__FILE__,__LINE__);
list($nbrexerc) = Database::fetch_array($res);

HotPotGCt($documentPath,1,$_user['user_id']);
$tbl_grade_link = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
// only for administrator

if ($is_allowedToEdit) {

	if (!empty($choice)) {
		// construction of Exercise

		$objExerciseTmp=new Exercise();

		if ($objExerciseTmp->read($exerciseId)) {
			switch ($choice) {
				case 'delete':	// deletes an exercise
								$objExerciseTmp->delete();
								
								//delete link of exercise of gradebook tool
								$sql='SELECT gl.id FROM '.$tbl_grade_link.' gl WHERE gl.type="1" AND gl.ref_id="'.$exerciseId.'";';
								$result=api_sql_query($sql,__FILE__,__LINE__);
								$row=Database::fetch_array($result,'ASSOC');
								
								$link= LinkFactory :: load($row['id']);
								if ($link[0] != null) {
									$link[0]->delete();
								}
								Display::display_confirmation_message(get_lang('ExerciseDeleted'));
								break;
				case 'enable':  // enables an exercise
								$objExerciseTmp->enable();
								$objExerciseTmp->save();
								// "WHAT'S NEW" notification: update table item_property (previously last_tooledit)								
								Display::display_confirmation_message(get_lang('VisibilityChanged'));

								break;
				case 'disable': // disables an exercise
								$objExerciseTmp->disable();
								$objExerciseTmp->save();
								Display::display_confirmation_message(get_lang('VisibilityChanged'));
								break;
				case 'disable_results' : //disable the results for the learners
								$objExerciseTmp->disable_results();
								$objExerciseTmp->save();
								Display::display_confirmation_message(get_lang('ResultsDisabled'));
								break;
				case 'enable_results' : //disable the results for the learners
								$objExerciseTmp->enable_results();
								$objExerciseTmp->save();
								Display::display_confirmation_message(get_lang('ResultsEnabled'));
								break;
			}
		}

		// destruction of Exercise
		unset($objExerciseTmp);
	}

	if (!empty($hpchoice)) {
			switch($hpchoice) {
					case 'delete':	// deletes an exercise
						$imgparams = array();
						$imgcount = 0;
						GetImgParams($file,$documentPath,$imgparams,$imgcount);
						$fld = GetFolderName($file);
						for($i=0;$i < $imgcount;$i++)
						{
								my_delete($documentPath.$uploadPath."/".$fld."/".$imgparams[$i]);
								update_db_info("delete", $uploadPath."/".$fld."/".$imgparams[$i]);
						}
	
						if ( my_delete($documentPath.$file))
						{
							update_db_info("delete", $file);
						}
						my_delete($documentPath.$uploadPath."/".$fld."/");
						break;
					case 'enable':  // enables an exercise
						$newVisibilityStatus = "1"; //"visible"
	                    $query = "SELECT id FROM $TBL_DOCUMENT WHERE path='".Database::escape_string($file)."'";
	                    $res = api_sql_query($query,__FILE__,__LINE__);
	                    $row = Database::fetch_array($res, 'ASSOC');
	                    api_item_property_update($_course, TOOL_DOCUMENT, $row['id'], 'visible', $_user['user_id']);
	                    //$dialogBox = get_lang('ViMod');
	
								break;
					case 'disable': // disables an exercise
						$newVisibilityStatus = "0"; //"invisible"
	                    $query = "SELECT id FROM $TBL_DOCUMENT WHERE path='".Database::escape_string($file)."'";
	                    $res = api_sql_query($query,__FILE__,__LINE__);
	                    $row = Database::fetch_array($res, 'ASSOC');
	                    api_item_property_update($_course, TOOL_DOCUMENT, $row['id'], 'invisible', $_user['user_id']);
						#$query = "UPDATE $TBL_DOCUMENT SET visibility='$newVisibilityStatus' WHERE path=\"".$file."\""; //added by Toon
						#api_sql_query($query,__FILE__,__LINE__);
						//$dialogBox = get_lang('ViMod');
						break;
					default:
						break;
			}
	}

	if ($show == 'test') {
			$sql="SELECT id,title,type,active,description, results_disabled FROM $TBL_EXERCICES WHERE active<>'-1' ORDER BY title LIMIT ".(int)$from.",".(int)($limitExPage+1);
			$result=api_sql_query($sql,__FILE__,__LINE__);
	}
	
} elseif($show == 'test') {// only for students //fin
	$sql="SELECT id,title,type,description, results_disabled FROM $TBL_EXERCICES WHERE active='1' ORDER BY title LIMIT ".(int)$from.",".(int)($limitExPage+1);
	$result=api_sql_query($sql,__FILE__,__LINE__);
}


// the actions
echo '<div class="actions">';

	// display the next and previous link if needed
	$from=$page*$limitExPage;
	$sql="SELECT count(id) FROM $TBL_EXERCICES";
	$res = api_sql_query($sql,__FILE__,__LINE__);
	list($nbrexerc) = Database::fetch_array($res);
	HotPotGCt($documentPath,1,$_user['user_id']);
	// only for administrator
	if($is_allowedToEdit) {
		if ($show == 'test') {
		$sql="SELECT id,title,type,active,description, results_disabled FROM $TBL_EXERCICES WHERE active<>'-1' ORDER BY title LIMIT ".(int)$from.",".(int)($limitExPage+1);
		$result=api_sql_query($sql,__FILE__,__LINE__);
		}
	} elseif($show == 'test') { // only for students
	$sql="SELECT id,title,type,description, results_disabled FROM $TBL_EXERCICES WHERE active='1' ORDER BY title LIMIT ".(int)$from.",".(int)($limitExPage+1);
	$result=api_sql_query($sql,__FILE__,__LINE__);
	}
	if($show == 'test')
	{
		$nbrExercises=Database::num_rows($result);

		//get HotPotatoes files (active and inactive)
		$res = api_sql_query ("SELECT *
					FROM $TBL_DOCUMENT
					WHERE
					path LIKE '".Database::escape_string($uploadPath)."/%/%'",__FILE__,__LINE__);
		$nbrTests = Database::num_rows($res);
		$res = api_sql_query ("SELECT *
					FROM $TBL_DOCUMENT d, $TBL_ITEM_PROPERTY ip
					WHERE  d.id = ip.ref
					AND ip.tool = '".TOOL_DOCUMENT."'
					AND d.path LIKE '".Database::escape_string($uploadPath)."/%/%'
					AND ip.visibility='1'", __FILE__,__LINE__);
		$nbrActiveTests = Database::num_rows($res);

		if($is_allowedToEdit)
		{//if user is allowed to edit, also show hidden HP tests
			$nbrHpTests = $nbrTests;
		}
		else
		{
			$nbrHpTests = $nbrActiveTests;
		}
		$nbrNextTests = $nbrexerc-$nbrHpTests-(($page*$limitExPage));


		echo '<span style="float:right">';
		//show pages navigation link for previous page
		if($page)
		{
			echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&amp;page=".($page-1)."\">".Display::return_icon('previous.gif').get_lang("PreviousPage")."</a> | ";
		}
		elseif($nbrExercises+$nbrNextTests > $limitExPage)
		{
			echo Display::return_icon('previous.gif').get_lang('PreviousPage')." | ";
		}
	
		//show pages navigation link for previous page
		if($nbrExercises+$nbrNextTests > $limitExPage)
		{
			echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&amp;page=".($page+1)."\">".get_lang("NextPage").Display::return_icon('next.gif')."</a>";
		}
		elseif($page)
		{
			echo get_lang("NextPage") . Display::return_icon('next.gif');
		}
		echo '</span>';
	}

	if (($is_allowedToEdit) and ($origin != 'learnpath'))
	{
		echo '<a href="exercise_admin.php?'.api_get_cidreq().'">'.Display::return_icon('new_test.gif',get_lang('NewEx')).get_lang('NewEx').'</a>';
		echo '<a href="hotpotatoes.php">'.Display::return_icon('jqz.jpg',get_lang('ImportHotPotatoesQuiz')).get_lang('ImportHotPotatoesQuiz').'</a>';
		echo '<a href="'.api_add_url_param($_SERVER['REQUEST_URI'],'show=result').'">'.Display::return_icon('show_test_results.gif',get_lang('ImportHotPotatoesQuiz')).get_lang("Results").'</a>';

		// the actions for the statistics
		if($show == 'result')
		{
			// the form
			if(api_is_platform_admin() || api_is_course_admin() || api_is_course_tutor() || api_is_course_coach())
			{
				if($_SESSION['export_user_fields']==false)
				{
					$alt = get_lang('ExportWithUserFields');
					$extra_user_fields = '<input type="hidden" name="export_user_fields" value="export_user_fields">';
				}
				else
				{
					$alt = get_lang('ExportWithoutUserFields');
					$extra_user_fields =  '<input type="hidden" name="export_user_fields" value="do_not_export_user_fields">';
				}
				echo '<a href="#" onclick="document.form1a.submit();">'.Display::return_icon('excel.gif',get_lang('ExportAsCSV')).get_lang('ExportAsCSV').'</a>';
				echo '<a href="#" onclick="document.form1b.submit();">'.Display::return_icon('excel.gif',get_lang('ExportAsXLS')).get_lang('ExportAsXLS').'</a>';
				echo '<a href="#" onclick="document.form1c.submit();">'.Display::return_icon('synthese_view.gif',$alt).$alt.'</a>';			
				echo '<a href="'.api_add_url_param($_SERVER['REQUEST_URI'],'show=test').'">'.Display::return_icon('quiz.gif').get_lang('BackToExercisesList').'</a>';
				echo '<form id="form1a" name="form1a" method="post" action="'.api_get_self().'?show='.Security::remove_XSS($_GET['show']).'">';
				echo '<input type="hidden" name="export_report" value="export_report">';
				echo '<input type="hidden" name="export_format" value="csv">';
				echo '</form>';
				echo '<form id="form1b" name="form1b" method="post" action="'.api_get_self().'?show='.Security::remove_XSS($_GET['show']).'">';
				echo '<input type="hidden" name="export_report" value="export_report">';
				echo '<input type="hidden" name="export_format" value="xls">';
				echo '</form>';
				echo '<form id="form1c" name="form1c" method="post" action="'.api_get_self().'?show='.Security::remove_XSS($_GET['show']).'">';
				echo $extra_user_fields;
				echo '</form>';

			}	
		}
	}
	
	if ($_configuration['tracking_enabled']) 
	{
		if ($show == 'result') 
		{
			if (!function_exists('make_select')) 
			{
				function make_select($name,$values,$checked='')
				{
					$output .= '<select name="'.$name.'" >';
 					foreach($values as $key => $value) 
 					{
 						$output .= '<option value="'.$key.'" '.(($checked==$key)?'selected="selected"':'').'>'.$value.'</option>';
 					}
 					$output .= '</select>';
 				return $output;
				}
			}

			if (!function_exists('make_select_users')) 
			{
				function make_select_users($name,$values,$checked='')
				{
					$output .= '<select name="'.$name.'" >';
					$output .= '<option value="all">'.get_lang('EveryBody').'</option>';
	 				foreach($values as $key => $value) 
	 				{
	 					$output .= '<option value="'.$key.'" '.(($checked==$key)?'selected="selected"':'').'>'.$value.'</option>';
	 				}
	 				$output .= '</select>';
	 				return $output;
				}
			}

			if (api_is_allowed_to_edit()) 
			{
				if (!$_REQUEST['filter']) 
				{
					$filter_by_not_revised = true;
					$filter=1;
				}
				$filter = (int)$_REQUEST['filter'];


				switch($filter)
				{
				 case 1:
						$filter_by_not_revised = true;
						break;
			 	 case 2:
						$filter_by_revised = true;
						break;
				 default:
				 		null;
				}
				$form_filter = '<form method="post" action="'.api_get_self().'?cidReq='.api_get_course_id().'&show=result">';
				$form_filter .= make_select('filter',array(1=>get_lang('FilterByNotRevised'),2=>get_lang('FilterByRevised')),$filter);
				$form_filter .= '<input type="submit" value="'.get_lang('FilterExercices').'"> </form>';
				echo $form_filter;
			}
		}

		if (api_is_allowed_to_edit()) 
		{
			$user_count = count($user_list_name);
			if ($user_count >0 ) {
				$form_filter = '<form method="post" action="'.api_get_self().'?cidReq='.api_get_course_id().'&show=result">';
				$user_list_for_select =array();
				for ($i=0;$i<$user_count;$i++) {
					$user_list_for_select[$user_list_id[$i]]=$user_list_name[$i];
				}
				$form_filter .= make_select_users('filter_by_user',$user_list_for_select,(int)$_REQUEST['filter_by_user']);
				$form_filter .= '<input type="hidden" name="filter" value="'.$filter.'">';
				$form_filter .= '<input type="submit" value="'.get_lang('FilterExercicesByUsers').'"></form>';
				echo $form_filter;
			}
		}		
		
	}	
echo '</div>'; // closing the actions div


if ($show == 'test') {

?>
<table class="data_table">
  <?php
	if (($is_allowedToEdit) and ($origin != 'learnpath')) {
	?>
  <tr class="row_odd">
    <th colspan="3"><?php  echo get_lang('ExerciseName');?></th>
     <th><?php echo get_lang('QuantityQuestions');?></th>
	 <th><?php echo get_lang('Export');?></th>
	 <th><?php echo get_lang('Modify');?></th>

  </tr>
  <?php
} else {
	 ?> <tr>
     <th colspan="3"><?php echo get_lang('ExerciseName');?></th>
     <th><?php echo get_lang('QuantityQuestions');?></th>
	 <th><?php echo get_lang('State');?></th>

  </tr>
	<?php
}
	// show message if no HP test to show
	if (!($nbrExercises+$nbrHpTests) ) {
	?>
  <tr>
    <td <?php echo ($is_allowedToEdit?'colspan="6"':'colspan="5"'); ?>><?php echo get_lang("NoEx"); ?></td>
  </tr>
  <?php
	}
$i=1;
// while list exercises

if ($origin != 'learnpath') {
//avoid sending empty parameters
$myorigin = (empty($origin)?'':'&origin='.$origin);
$mylpid = (empty($learnpath_id)?'':'&learnpath_id='.$learnpath_id);
$mylpitemid = (empty($learnpath_item_id)?'':'&learnpath_item_id='.$learnpath_item_id);
while($row=Database::fetch_array($result)) {
	if($i%2==0) $s_class="row_odd"; else $s_class="row_even";

	// prof only
	if ($is_allowedToEdit) {
	echo '<tr class="'.$s_class.'">'."\n";
				?>
		  <td width="30" align="left"><?php Display::display_icon('quiz.gif', get_lang('Exercice'))?></td>
		  <td width="15" valign="left"><?php echo ($i+($page*$limitExPage)).'.'; ?></td>
		      <?php $row['title']=api_parse_tex($row['title']); ?>
		  <td><a href="exercice_submit.php?<?php echo api_get_cidreq().$myorigin.$mylpid.$mylpitemid; ?>&amp;exerciseId=<?php echo $row['id']; ?>" <?php if(!$row['active']) echo 'class="invisible"'; ?>><?php echo $row['title']; ?></a></td>
		  <td> <?php
		  $exid = $row['id'];
		  $sqlquery = "SELECT count(*) FROM $TBL_EXERCICE_QUESTION WHERE exercice_id = '".Database::escape_string($exid)."'";
		  $sqlresult =api_sql_query($sqlquery);
		  $rowi = Database::result($sqlresult,0);
		  echo $rowi.' '.strtolower(get_lang(($rowi>1?'Questions':'Question'))).'</td>';
  		  echo '<td><a href="exercice.php?choice=exportqti2&exerciseId='.$row['id'].'"><img src="../img/export.png" border="0" title="IMS/QTI" /></a></td>';
  		  ?>
	       <td>
	       <a href="exercise_admin.php?modifyExercise=yes&exerciseId=<?php echo $row['id']; ?>"> <img src="../img/edit.gif" border="0" title="<?php echo htmlentities(get_lang('Modify'),ENT_QUOTES,$charset); ?>" alt="<?php echo htmlentities(get_lang('Modify'),ENT_QUOTES,$charset); ?>" /></a>
	       <a href="admin.php?exerciseId=<?php echo $row['id']; ?>"><img src="../img/wizard_small.gif" border="0" title="<?php echo htmlentities(get_lang('Build'),ENT_QUOTES,$charset); ?>" alt="<?php echo htmlentities(get_lang('Build'),ENT_QUOTES,$charset); ?>" /></a>
	       <a href="exercice.php?choice=delete&exerciseId=<?php echo $row['id']; ?>" onclick="javascript:if(!confirm('<?php echo addslashes(htmlentities(get_lang('AreYouSureToDelete'),ENT_QUOTES,$charset)); echo " ".$row['title']; echo "?"; ?>')) return false;"> <img src="../img/delete.gif" border="0" alt="<?php echo htmlentities(get_lang('Delete'),ENT_QUOTES,$charset); ?>" /></a>
	    <?php
				// if active
if ($row['active']) {
					?>
      <a href="exercice.php?choice=disable&page=<?php echo $page; ?>&exerciseId=<?php echo $row['id']; ?>"> <img src="../img/visible.gif" border="0" alt="<?php echo htmlentities(get_lang('Deactivate'),ENT_QUOTES,$charset); ?>" /></a>
    <?php
				} else {// else if not active
					?>
      <a href="exercice.php?choice=enable&page=<?php echo $page; ?>&exerciseId=<?php echo $row['id']; ?>"> <img src="../img/invisible.gif" border="0" alt="<?php echo htmlentities(get_lang('Activate'),ENT_QUOTES,$charset); ?>" /></a>
    <?php
}
if($row['results_disabled']) {
echo '<a href="exercice.php?choice=enable_results&page='.$page.'&exerciseId='.$row['id'].'" title="'.get_lang('EnableResults').'" alt="'.get_lang('EnableResults').'"><img src="../img/lp_quiz_na.gif" border="0" alt="'.htmlentities(get_lang('EnableResults'),ENT_QUOTES,$charset).'" /></a>';
} else {
echo '<a href="exercice.php?choice=disable_results&page='.$page.'&exerciseId='.$row['id'].'" title="'.get_lang('DisableResults').'" alt="'.get_lang('DisableResults').'"><img src="../img/lp_quiz.gif" border="0" alt="'.htmlentities(get_lang('DisableResults'),ENT_QUOTES,$charset).'" /></a>';
}
echo "</td>";
echo "</tr>\n";
} else {// student only
				?>
          <tr>
            <td><?php echo ($i+($page*$limitExPage)).'.'; ?></td>
            <td>&nbsp;</td>
            <?php $row['title']=api_parse_tex($row['title']);?>
            <td><a href="exercice_submit.php?<?php echo api_get_cidreq().$myorigin.$mylpid.$myllpitemid; ?>&exerciseId=<?php echo $row['id']; ?>"><?php echo $row['title']; ?></a></td>
	 <td align="center"> <?php
$exid = $row['id'];
$sqlquery = "SELECT count(*) FROM $TBL_EXERCICE_QUESTION WHERE exercice_id = '".Database::escape_string($exid)."'";
$sqlresult =api_sql_query($sqlquery);
$rowi = Database::result($sqlresult,0);
echo $rowi.' '.strtolower(get_lang(($rowi>1?'Questions':'Question'))); ?> </td>
  <td align="center"><?php
$eid = $row['id'];
$uid= api_get_user_id();
//this query might be improved later on by ordering by the new "tms" field rather than by exe_id
$qry = "SELECT * FROM $TBL_TRACK_EXERCICES " .
		   "WHERE exe_exo_id = '".Database::escape_string($eid)."' and exe_user_id = '".Database::escape_string($uid)."' AND exe_cours_id = '".api_get_course_id()."' AND status <>'incomplete' AND orig_lp_id = 0 AND orig_lp_item_id = 0 AND session_id =  '".api_get_session_id()."' ORDER BY exe_id DESC";
	$qryres = api_sql_query($qry);
	$num = Database::num_rows($qryres);
    if ($num>0) {
    	$row = Database::fetch_array($qryres);
    	$percentage = 0;
    	if($row['exe_weighting'] != 0) {
    		$percentage = ($row['exe_result']/$row['exe_weighting'])*100;
    	}
		echo get_lang('Attempted').' ('.get_lang('Score').':';
		printf("%1.2f\n",$percentage);
		echo " %)";
	} else {
		echo get_lang('NotAttempted');
	}
	?></td>
  </tr>
  <?php
}
// skips the last exercise, that is only used to know if we have or not to create a link "Next page"
if($i == $limitExPage) {
				break;
			}
$i++;
}	// end while()
		$ind = $i;
		if (($from+$limitExPage-1)>$nbrexerc) {
			if ($from>$nbrexerc) {
				$from = $from - $nbrexerc;
			  	$to = $limitExPage;
			} else {
				$to = $limitExPage-($nbrexerc-$from);
				$from = 0;
			}
		} else {
			$to = $limitExPage;
		}

		if($is_allowedToEdit) {
			$sql = "SELECT d.path as path, d.comment as comment, ip.visibility as visibility
				FROM $TBL_DOCUMENT d, $TBL_ITEM_PROPERTY ip
							WHERE   d.id = ip.ref AND ip.tool = '".TOOL_DOCUMENT."' AND
							 (d.path LIKE '%htm%')
							AND   d.path  LIKE '".Database::escape_string($uploadPath)."/%/%' LIMIT ".(int)$from.",".(int)$to; // only .htm or .html files listed
		} else {
			$sql = "SELECT d.path as path, d.comment as comment, ip.visibility as visibility
				FROM $TBL_DOCUMENT d, $TBL_ITEM_PROPERTY ip
								WHERE d.id = ip.ref AND ip.tool = '".TOOL_DOCUMENT."' AND
								 (d.path LIKE '%htm%')
								AND   d.path  LIKE '".Database::escape_string($uploadPath)."/%/%' AND ip.visibility='1' LIMIT ".(int)$from.",".(int)$to;
		}

		$result = api_sql_query ($sql,__FILE__,__LINE__);

		while ($row = Database::fetch_array($result, 'ASSOC')) {
			$attribute['path'      ][] = $row['path'      ];
			$attribute['visibility'][] = $row['visibility'];
			$attribute['comment'   ][] = $row['comment'   ];
		}
		$nbrActiveTests = 0;
		if (is_array($attribute['path'])) {
			while (list($key,$path) = each($attribute['path'])) {
				list($a,$vis)=each($attribute['visibility']);
				if (strcmp($vis,"1")==0) { $active=1;
				} else {
					 $active=0;
				}
				echo "<tr>\n";

				$title = GetQuizName($path,$documentPath);
				if ($title =='') {
					$title = GetFileName($path);
				}
				// prof only
				if($is_allowedToEdit) {
					/************/
					?>
  
    <tr>
      <td><img src="../img/jqz.jpg" alt="HotPotatoes" /></td>
	   <td><?php echo ($ind+($page*$limitExPage)).'.'; ?></td>
       <td><a href="showinframes.php?file=<?php echo $path?>&cid=<?php echo $_course['official_code'];?>&uid=<?php echo $_user['user_id'];?>" <?php if(!$active) echo 'class="invisible"'; ?>><?php echo $title?></a></td>    
  <td></td><td></td>
      <td><a href="adminhp.php?hotpotatoesName=<?php echo $path; ?>"> <img src="../img/edit.gif" border="0" alt="<?php echo htmlentities(get_lang('Modify'),ENT_QUOTES,$charset); ?>" /></a>
       <img src="../img/wizard_gray_small.gif" border="0" title="<?php echo htmlentities(get_lang('Build'),ENT_QUOTES,$charset); ?>" alt="<?php echo htmlentities(get_lang('Build'),ENT_QUOTES,$charset); ?>" />
  <a href="<?php echo $exercicePath; ?>?hpchoice=delete&amp;file=<?php echo $path; ?>" onclick="javascript:if(!confirm('<?php echo addslashes(htmlentities(get_lang('AreYouSure'),ENT_QUOTES,$charset).$title."?"); ?>')) return false;"><img src="../img/delete.gif" border="0" alt="<?php echo htmlentities(get_lang('Delete'),ENT_QUOTES,$charset); ?>" /></a>
    <?php
					// if active
					if($active){
						$nbrActiveTests = $nbrActiveTests + 1;
						?>
      <a href="<?php echo $exercicePath; ?>?hpchoice=disable&amp;page=<?php echo $page; ?>&amp;file=<?php echo $path; ?>"><img src="../img/visible.gif" border="0" alt="<?php echo htmlentities(get_lang('Deactivate'),ENT_QUOTES,$charset); ?>" /></a>
    <?php
					} else {// else if not active
						?>
    <a href="<?php echo $exercicePath; ?>?hpchoice=enable&amp;page=<?php echo $page; ?>&amp;file=<?php echo $path; ?>"><img src="../img/invisible.gif" border="0" alt="<?php echo htmlentities(get_lang('Activate'),ENT_QUOTES,$charset); ?>" /></a>
    <?php
					}
					echo '<img src="../img/lp_quiz_na.gif" border="0" alt="" />';
				/****************/
				?></td>
      <?php } else {// student only
					if ($active==1) {
						$nbrActiveTests = $nbrActiveTests + 1;
						?>
    <tr>

        <td><?php echo ($ind+($page*$limitExPage)).'.'; ?><!--<img src="../img/jqz.jpg" alt="HotPotatoes" />--></td>
       <td>&nbsp;</td>
        <td><a href="showinframes.php?<?php echo api_get_cidreq()."&amp;file=".$path."&amp;cid=".$_course['official_code']."&amp;uid=".$_user['user_id'].'"'; if(!$active) echo 'class="invisible"'; ?>"><?php echo $title;?></a></td>
		<td>&nbsp;</td><td>&nbsp;</td>
  </tr>
  <?php
					}
				}
				?>
  <?php
				if ($ind == $limitExPage) {
					break;
				}
				if ($is_allowedToEdit) {
					$ind++;
				} else {
					if ($active==1) {
						$ind++;
					}
				}
			}
		}


	} //end if ($origin != 'learnpath') {
	?>
</table>
<?php
}

/*****************************************/
/* Exercise Results (uses tracking tool) */
/*****************************************/

// if tracking is enabled
if ($_configuration['tracking_enabled'] AND ($show == 'result') ) 
{
		?>
		<table class="data_table">
		 <tr class="row_odd">
		  <?php if($is_allowedToEdit || $is_tutor): ?>
		  <th><?php  echo get_lang('User'); ?></th><?php endif; ?>
		  <th><?php echo get_lang('Exercice'); ?></th>
		  <th><?php echo get_lang('Duration'); ?></th>
		  <th><?php echo get_lang('Date'); ?></th>
		  <th><?php echo get_lang('Result'); ?></th>
		  <th><?php echo (($is_allowedToEdit||$is_tutor)?get_lang("CorrectTest"):get_lang("ViewTest")); ?></th>
		 </tr>
		<?php
		$session_id_and='';
		if (api_get_session_id()!=0) {
			$session_id_and = ' AND session_id = ' .api_get_session_id().' ';
		}

		if($is_allowedToEdit || $is_tutor) {
			$user_id_and='';

			if (!empty($_POST['filter_by_user'])) {
				if ($_POST['filter_by_user'] =='all') {
					$user_id_and = " AND user_id like '%'";
				} else {
				$user_id_and = " AND user_id = '" . Database::escape_string ( (int)$_POST['filter_by_user'] )."' ";
				}
			}

			if($_GET['gradebook']=='view') {
				$exercise_where_query = 'te.exe_exo_id =ce.id AND ';
			}

			$sql="SELECT CONCAT(lastname,' ',firstname) as users, ce.title, te.exe_result ,
						 te.exe_weighting, UNIX_TIMESTAMP(te.exe_date), te.exe_id, email,UNIX_TIMESTAMP(te.start_date),steps_counter,user_id
				  FROM $TBL_EXERCICES AS ce , $TBL_TRACK_EXERCICES AS te, $TBL_USER AS user
				  WHERE  te.exe_exo_id = ce.id AND te.status != 'incomplete' AND user_id=te.exe_user_id AND te.exe_cours_id='".Database::escape_string($_cid)."'
				  AND user.status<>1 $user_id_and $session_id_and AND ce.active <>-1 AND orig_lp_id = 0 AND orig_lp_item_id = 0 
				  ORDER BY users, te.exe_cours_id ASC, ce.title ASC, te.exe_date DESC";


			$hpsql="SELECT CONCAT(tu.lastname,' ',tu.firstname), tth.exe_name,
						tth.exe_result , tth.exe_weighting, UNIX_TIMESTAMP(tth.exe_date)
					FROM $TBL_TRACK_HOTPOTATOES tth, $TBL_USER tu
					WHERE  tu.user_id=tth.exe_user_id AND tth.exe_cours_id = '".Database::escape_string($_cid)." $user_id_and '
					ORDER BY tth.exe_cours_id ASC, tth.exe_date DESC";
			} else {
				// get only this user's results
				$user_id_and = ' AND te.exe_user_id = ' . Database::escape_string ( api_get_user_id() ).' ';

				$sql="SELECT CONCAT(lastname,' ',firstname) as users,ce.title, te.exe_result ,
						te.exe_weighting, UNIX_TIMESTAMP(te.exe_date),te.exe_id,email,UNIX_TIMESTAMP(te.start_date),steps_counter,user_id
				  FROM $TBL_EXERCICES AS ce , $TBL_TRACK_EXERCICES AS te, $TBL_USER AS user
				  WHERE  te.exe_exo_id = ce.id AND te.status != 'incomplete' AND user_id=te.exe_user_id AND te.exe_cours_id='".Database::escape_string($_cid)."'
				  AND user.status<>1 $user_id_and  $session_id_and AND ce.active <>-1 AND orig_lp_id = 0 AND orig_lp_item_id = 0 
				  ORDER BY users, te.exe_cours_id ASC, ce.title ASC, te.exe_date DESC";

				$hpsql="SELECT '',exe_name, exe_result , exe_weighting, UNIX_TIMESTAMP(exe_date)
					FROM $TBL_TRACK_HOTPOTATOES
					WHERE exe_user_id = '".$_user['user_id']."' AND exe_cours_id = '".Database::escape_string($_cid)."'
					ORDER BY exe_cours_id ASC, exe_date DESC";
					//error_log($hpsql);

		}

		$results=getManyResultsXCol($sql,10);
		$hpresults=getManyResultsXCol($hpsql,5);

		$NoTestRes = 0;
		$NoHPTestRes = 0;
		//Print the results of tests
		$lang_nostartdate = get_lang('NoStartDate').' / ';
		if (is_array($results)) {
			$users_array_id = array();
			if ($_GET['gradebook']=='view') {
				$filter_by_no_revised = true;
				$from_gradebook = true;
			}
			$sizeof = sizeof($results);
			$user_list_name = $user_list_id = array();

			for ($i = 0; $i < $sizeof; $i++) {

				$revised = false;
				$sql_exe='SELECT exe_id FROM '.Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING).' WHERE author != '."''".' AND exe_id = '."'".$results[$i][5]."'".' LIMIT 1';
				$query = api_sql_query($sql_exe,__FILE__,__LINE__);

				if ( Database::num_rows($query) > 0) {
					$revised = true;
				}
				if ($filter_by_not_revised && $revised == true) {
					continue;
				}
				if($filter_by_revised && $revised == false) {
					continue;
				}
				if($from_gradebook && ($is_allowedToEdit || $is_tutor)) {
					if(in_array($results[$i][1].$results[$i][0],$users_array_id)) {
						continue;
					}
					$users_array_id[] = $results[$i][1].$results[$i][0];
				}

				$user_list_name[] =  $results[$i][0];
				$user_list_id[] =  $results[$i][9];

				$id = $results[$i][5];
				$mailid = $results[$i][6];
				$user = $results[$i][0];
				$test = $results[$i][1];
				$dt = strftime($dateTimeFormatLong,$results[$i][4]);
				$res = $results[$i][2];
				echo '<tr';
				if ($i%2==0) {
					echo 'class="row_odd"';
				} else {
					echo 'class="row_even"';
				}
				echo '>';
				$add_start_date = $lang_nostartdate;
				if ($is_allowedToEdit || $is_tutor) {
					$user = $results[$i][0];
					echo '<td>'.$user.' '.$duration.'</td>';
				}
				echo '<td>'.$test.'</td>';
				echo '<td>';
				if ($results[$i][7] > 1) {
					echo ceil((($results[$i][4] - $results[$i][7])/60)).' '.get_lang('Min');
					if($results[$i][8] > 1) {
						echo ' ( '.$results[$i][8].' '.get_lang('Steps').' )';
					}
					$add_start_date = format_locale_date('%b %d, %Y %H:%M',$results[$i][7]).' / ';
				} else {
					echo get_lang('NoLogOfDuration');
				}

				echo '</td>';

				echo '<td>'.$add_start_date.format_locale_date('%b %d, %Y %H:%M',$results[$i][4]).'</td>';//get_lang('dateTimeFormatLong')
		  		echo '<td>'.round(($res/($results[$i][3]!=0?$results[$i][3]:1))*100).'% ('.$res.' / '.$results[$i][3].')</td>';
				echo '<td>'.(($is_allowedToEdit||$is_tutor)?
							"<a href='exercise_show.php?user=$user&dt=$dt&res=$res&id=$id&email=$mailid'>".
							(($revised)?get_lang('Edit'):get_lang('Qualify'))."</a>".
							((api_is_platform_admin() || $is_tutor)?' - <a href="exercice.php?cidReq='.htmlentities($_GET['cidReq']).'&show=result&filter='.$filter.'&delete=delete&did='.$id.'" onclick="javascript:if(!confirm(\''.sprintf(get_lang('DeleteAttempt'),$user,$dt).'\')) return false;">'.get_lang('Delete').'</a>':'')
							.(($is_allowedToEdit)?' - <a href="exercice_history.php?cidReq='.htmlentities($_GET['cidReq']).'&exe_id='.$id.'">'.get_lang('ViewHistory').'</a>':'')
							:(($revised)?"<a href='exercise_show.php?dt=$dt&res=$res&id=$id'>".get_lang('Show')."</a>":'')).'</td>';
				echo '</tr>';
			}
		} else {
				$NoTestRes = 1;
		}

		// Print the Result of Hotpotatoes Tests
		if (is_array($hpresults)) {
			for($i = 0; $i < sizeof($hpresults); $i++) {
				$title = GetQuizName($hpresults[$i][1],$documentPath);
				if ($title =='') {
					$title = GetFileName($hpresults[$i][1]);
				}
				echo '<tr>';
				if ($is_allowedToEdit) {
					echo '<td class="content">'.$hpresults[$i][0].'</td>';
				}
				echo '<td class="content">'.$title.'</td>';
				echo '<td class="content">'.strftime($dateTimeFormatLong,$hpresults[$i][4]).'</td>';
				echo '<td class="content">'.round(($hpresults[$i][2]/($hpresults[$i][3]!=0?$hpresults[$i][3]:1))*100).'% ('.$hpresults[$i][2].' / '.$hpresults[$i][3].')</td>';
				echo '<td></td>'; //there is no possibility to edit the results of a Hotpotatoes test
				echo '</tr>';
			}
		} else {
			$NoHPTestRes = 1;
		}

		if ($NoTestRes==1 && $NoHPTestRes==1) {
			?>
			 <tr>
			  <td colspan="6"><?php echo get_lang("NoResult"); ?></td>
			 </tr>
			<?php
		}
		?>
		</table>
		<br />
		<?php
}


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/default.css" />
	<?php
}
?>