chamilo-lms2/main/exercice/exercise_submit.php

<?php
/* For licensing terms, see /license.txt */
/**
*	Exercise submission
* 	This script allows to run an exercise. According to the exercise type, questions
* 	can be on an unique page, or one per page with a Next button.
*
* 	One exercise may contain different types of answers (unique or multiple selection,
* 	matching, fill in blanks, free answer, hot-spot).
*
* 	Questions are selected randomly or not.
*
* 	When the user has answered all questions and clicks on the button "Ok",
* 	it goes to exercise_result.php
*
*	@package chamilo.exercise
* 	@author Olivier Brouckaert
* 	@author Julio Montoya <gugli100@gmail.com>
* 			Fill in blank option added (2008)
* 			Cleaning exercises (2010),
* 			Adding hotspot delineation support (2011)
* 			Adding reminder + ajax support (2011)
 * 			Adding adding medias, local and global categories (2013)
*   Modified by hubert.borderiou (2011-10-21 question category)
*/
/**
 * Code
 */

use \ChamiloSession as Session;

require_once 'exercise.class.php';
require_once 'question.class.php';
require_once 'answer.class.php';

$urlMainExercise = api_get_path(WEB_CODE_PATH).'exercice/';
$current_course_tool  = TOOL_QUIZ;

$nameTools = get_lang('Quiz');

$this_section = SECTION_COURSES;
$debug = false;

if ($debug) {
    error_log('--- Enter to the exercise_submit.php ---- ');
    error_log('0. POST variables : '.print_r($_POST, 1));
}

// Notice for unauthorized people.
api_protect_course_script(true);

$is_allowedToEdit = api_is_allowed_to_edit(null, true);

if (api_get_setting('show_glossary_in_extra_tools') == 'true') {
    $htmlHeadXtra[] = api_get_js('glossary.js'); // Glossary
    $htmlHeadXtra[] = api_get_js('jquery.   highlight.js'); // highlight
}
// Matching question
$htmlHeadXtra[] = api_get_js('jquery.jsPlumb.all.js');

// This library is necessary for the time control feature
$htmlHeadXtra[]= api_get_css(api_get_path(WEB_LIBRARY_PATH).'javascript/epiclock/stylesheet/jquery.epiclock.css');
$htmlHeadXtra[]= api_get_css(api_get_path(WEB_LIBRARY_PATH).'javascript/epiclock/renderers/minute/epiclock.minute.css');
$htmlHeadXtra[]= api_get_js('epiclock/javascript/jquery.dateformat.min.js');
$htmlHeadXtra[]= api_get_js('epiclock/javascript/jquery.epiclock.min.js');
$htmlHeadXtra[]= api_get_js('epiclock/renderers/minute/epiclock.minute.js');
$htmlHeadXtra[]= api_get_js('d3/jquery.xcolor.js');
$htmlHeadXtra[]= '<script>

var recycle_icon = "<a href=\'#\' class=\'ui-icon ui-icon-refresh\'>Recycle image</a>";
var trash_icon = "<a href=\'#\' class=\'ui-icon ui-icon-trash\'>Delete image</a>";

function deleteItem($item, $insertHere) {

    if ($insertHere.find(".question_draggable").length > 0) {
        return false;
    }

    $item.fadeOut(function() {

        $list =  $( "<div class=\'gallery ui-helper-reset\'/>" ).appendTo($insertHere);
        $item.find( "a.ui-icon-trash" ).remove();

        var droppedId = $item.attr("id");
        var dropedOnId = $insertHere.attr("id");
        var originSelectId = "window_"+droppedId+"_select";
        value = dropedOnId.split("_")[2];

        $("#"+originSelectId +" option").filter(function() {
            return $(this).val() == value;
        }).attr("selected", true);

        $item.append( recycle_icon ).appendTo( $list  ).fadeIn(function() {
            //$item.animate({ width: "48px" }).find( "img" ).animate({ height: "36px" });
        });
  });
}

// Draggable js script in order to use jsplumb
var oldPositionArray;

$(function() {

    var $gallery = $( ".drag_question" );
    var $trash = $( ".droppable" );

    // let the questions items be draggable
    $("li", $gallery).draggable({
        cancel: "a.ui-icon", // clicking an icon wont initiate dragging
        revert: "invalid", // when not dropped, the item will revert back to its initial position
        containment: "document",
        helper: "clone",
        cursor: "move"
    });

    // let the "droppable" be droppable, accepting the questions items
    $trash.droppable({
        accept: ".drag_question > li",
        hoverClass: "ui-state-active",
        drop: function(event, ui) {
            deleteItem(ui.draggable,  $(this));
        }
    });

    // let the question handler be droppable as well, accepting items from the trash

    $gallery.droppable({
       // accept: ".droppable",
       // activeClass: "custom-state-active",
        hoverClass: "ui-state-active",
        drop: function( event, ui ) {
            recycleItem( ui.draggable, $(this));
        }
    });

    function recycleItem( $item, droppedOn) {
        $item.fadeOut(function() {
        $item
          .find( "a.ui-icon-refresh" )
            .remove()
          .end()
          .css( "width", "96px")
          //.append( trash_icon )
          .find( "img" )
            .css( "height", "72px" )
          .end()
          .appendTo( $gallery )
          .fadeIn();
        });
        var droppedId = $item.attr("id");
        var originSelectId = "window_"+droppedId+"_select";
        $("#"+originSelectId+" option:first").attr("selected","selected");
    }

    $( "ul.drag_question > li" ).click(function( event ) {
        var $item = $( this ),
            $target = $( event.target );

        if ( $target.is( "a.ui-icon-trash" ) ) {
            deleteItem( $item );
        } else if ( $target.is( "a.ui-icon-zoomin" ) ) {
        } else if ( $target.is( "a.ui-icon-refresh" ) ) {
            recycleItem( $item );
        }
        return false;
    });
});

// Matching js script in order to use jsplumb
var colorDestination = "#316b31";
var curvinessValue = 0;
var connectorType = "Straight";

;(function() {
    window.jsPlumbDemo = {
	    init : function(questionId) {
	        var windowQuestion = null;

	        if (questionId) {
	            windowQuestion = ".window"+ questionId+"_question";
	        }

	        var countConnections = $(windowQuestion).size();

            if (countConnections && countConnections > 0) {
                var colorArray = $.xcolor.analogous("#da0", countConnections);
                var colorArrayDestination = $.xcolor.analogous("#51a351", countConnections);
            } else {
                var colorArray = $.xcolor.analogous("#da0", 10);
                var colorArrayDestination = $.xcolor.analogous("#51a351", 10);
            }

	        jsPlumb.importDefaults({
				DragOptions : { cursor: "pointer", zIndex:2000 },
				PaintStyle : { strokeStyle:"#000" },
				EndpointStyle : { strokeStyle:"#316b31" },
				Endpoint : "Rectangle",
				Anchors : ["TopCenter", "TopCenter"]
			});

            var exampleDropOptions = {
                tolerance: "touch",
                hoverClass: "dropHover",
                activeClass: "dragActive"
            };

            var destinationEndPoint = {
                endpoint:["Dot", { radius: 15 }],
                paintStyle:{ fillStyle:colorDestination },
                isSource:false,
                connectorStyle:{ strokeStyle:colorDestination, lineWidth:8 },
                connector: [connectorType, { curviness: curvinessValue } ],
                maxConnections: 1000,
                isTarget:true,
                dropOptions : exampleDropOptions,
                beforeDrop:function(params) {
                    var connections = jsPlumb.getConnections({source: params.sourceId});
                    jsPlumb.select({source:params.sourceId}).each(function(connection) {
                        jsPlumb.detach(connection);
                    });
                    var selectId = params.sourceId + "_select";
                    var value = params.targetId.split("_")[2];

                    $("#" +selectId +" option").filter(function() {
                        return $(this).val() == value;
                    }).attr("selected", true);
                    return true;
                }
            };

            var count = 0;
            var sourceDestinationArray = Array;

            $(windowQuestion).each(function(index) {
                var windowId = $(this).attr("id");
                var scope = windowId + "scope";
                var destinationColor = colorArray[count].getHex();

                var sourceEndPoint = {
                    endpoint:["Dot", { radius:15 }],
                    paintStyle:{ fillStyle: destinationColor },
                    isSource:true,
                    connectorStyle:{ strokeStyle:"#8a8888" , lineWidth:8 },
                    connector: [connectorType, { curviness: curvinessValue } ],
                    maxConnections: 1,
                    isTarget:false,
                    dropOptions : exampleDropOptions,
                    scope: scope
                };
                sourceDestinationArray[count+1] = sourceEndPoint;

                count++;
                jsPlumb.addEndpoint(
                    windowId,
                    { anchor:[ "RightMiddle","RightMiddle","RightMiddle","RightMiddle" ] },
                    sourceEndPoint
                );
                var destinationCount = 0;
                $(windowQuestion).each(function( index ) {
                    var windowDestinationId = $(this).attr("id");
                    destinationEndPoint.scope = scope;
                    destinationEndPoint.paintStyle.fillStyle = colorArrayDestination[destinationCount].getHex();
                    destinationCount++;
                    jsPlumb.addEndpoint(
                        windowDestinationId+"_answer",
                        { anchor:[ "LeftMiddle","LeftMiddle","LeftMiddle","LeftMiddle" ] },
                        destinationEndPoint
                    );
                });
            });
            //var divsWithWindowClass = jsPlumb.CurrentLibrary.getSelector("#"+questionId+" .window");
			//jsPlumb.draggable(divsWithWindowClass);
			jsPlumbDemo.attachBehaviour();
        }
    }
})();

;(function() {
    var _initialised = false;

    jsPlumbDemo.attachBehaviour = function() {
        if (!_initialised) {
            _initialised = true;
        }
    };
})();

jsPlumb.ready(function() {
    if ($(".drag_question").length > 0) {
	    jsPlumbDemo.init();

	     $(document).scroll(function() {
            jsPlumb.repaintEverything();
        });

        $(window).resize(function() {
            jsPlumb.repaintEverything();
        });
	}
});

$(function() {
    $(".highlight_image").on("click", function() {
        $(this).parent().find(".highlight_image").each(function(index){
            $(this).removeClass("highlight_image_selected");
            $(this).addClass("highlight_image_default");
            $(this).find("label").find("input").attr("checked", false);
        });
        $(this).removeClass("highlight_image_default");
        $(this).addClass("highlight_image_selected");
        $(this).find("label").find("input").attr("checked", "checked");
    });
});

</script>';

// General parameters passed via POST/GET

// @todo check get and posts
$learnpath_id 			= isset($_GET['learnpath_id']) ? intval($_GET['learnpath_id']) : 0;
$learnpath_item_id 		= isset($_GET['learnpath_item_id']) ? intval($_GET['learnpath_item_id']) : 0;
$learnpath_item_view_id	= isset($_GET['learnpath_item_view_id']) ? intval($_GET['learnpath_item_view_id']) : 0;
$origin 				= isset($_GET['origin']) ? Security::remove_XSS($_GET['origin']) : '';
$reminder 				= isset($_GET['reminder']) ? intval($_GET['reminder']) : 0;
$remind_question_id 	= isset($_GET['remind_question_id']) ? intval($_GET['remind_question_id']) : 0;
$exerciseId				= isset($_REQUEST['exerciseId']) ? intval($_REQUEST['exerciseId']) : 0;
$formSent               = isset($_POST['formSent']) ? $_POST['formSent'] : null;
$exerciseResult         = isset($_GET['exerciseResult']) ? $_GET['exerciseResult'] : null;
$choice                 = isset($_GET['choice']) ? $_GET['choice'] : null;
$choice                 = empty($choice) ? isset($_GET['choice2']) ? $_GET['choice2'] : null : null;
$exerciseResultCoordinates = isset($_GET['exerciseResultCoordinates']) ? $_GET['exerciseResultCoordinates'] : null;
$current_question       = isset($_REQUEST['num']) ? intval($_REQUEST['num']) : null;
$endExercise = isset($_REQUEST['end_exercise']) && $_REQUEST['end_exercise'] == 1 ? true : false;

// Error message
$error = '';

/*  Teacher takes an exam and want to see a preview,
we delete the objExercise from the session in order to get the latest changes in the exercise */
if (api_is_allowed_to_edit(null, true) && isset($_GET['preview']) && $_GET['preview'] == 1) {
    Session::erase('objExercise');
}

/** @var \Exercise $exerciseInSession */
$exerciseInSession = Session::read('objExercise');

// 1. Loading the $objExercise variable
if (!isset($exerciseInSession) || isset($exerciseInSession) && ($exerciseInSession->id != $_GET['exerciseId'])) {
    // Construction of Exercise
    /** @var \Exercise $objExercise */
    $objExercise = new Exercise();

    if ($debug) {
        error_log('1. Setting the $objExercise variable');
    }
    Session::erase('questionList');
    Session::erase('question_list_uncompressed');

    // if the specified exercise doesn't exist or is disabled
    if (!$objExercise->read($exerciseId) || (!$objExercise->selectStatus() && !$is_allowedToEdit && ($origin != 'learnpath'))) {
        if ($debug) {
            error_log('1.1. Error while reading the exercise');
        }
        unset ($objExercise);
        $error = get_lang('ExerciseNotFound');
    } else {
        // Saves the object into the session
        Session::write('objExercise', $objExercise);
        if ($debug) {
            error_log('1.1. $exerciseInSession was unset - set now - end');
        }
    }
}

//$objExercise = new Exercise(); $objExercise->read($exerciseId);

//2. Checking if $objExercise is set
if (!isset($objExercise) && isset($exerciseInSession)) {
    if ($debug) {
        error_log('2. Loading $objExercise from session');
    }
    $objExercise = $exerciseInSession;
}

//3. $objExercise is not set, then return to the exercise list
if (!is_object($objExercise)) {
    if ($debug) {
        error_log('3. $objExercise was not set, kill the script');
    }
    header('Location: '.$urlMainExercise.'exercice.php');
    exit;
}

// If reminder ends we jump to the exercise_reminder
if ($objExercise->review_answers) {
    if ($remind_question_id == -1) {
        $paramsReminder = "exerciseId=$exerciseId&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id&".api_get_cidreq();
        header('Location: '.$urlMainExercise.'exercise_reminder.php?'.$paramsReminder);
        exit;
    }
}

$exeId = isset($_GET['exe_id']) ? $_GET['exe_id'] : null;

// Blocking access if exe_id was already treated
if (!empty($exeId)) {
    $attemptInfo = $objExercise->getStatTrackExerciseInfoByExeId($exeId);

    if (!empty($attemptInfo) && $attemptInfo['status'] == '') {
        header("Location: ".$urlMainExercise."overview.php?exerciseId=".$exerciseId."&".api_get_cidreq());
        exit;
    }
}

$current_timestamp 	= time();
$my_remind_list 	= array();

$time_control = false;
if ($objExercise->expired_time != 0) {
    $time_control = true;
}

// Generating the time control key for the user.
$current_expired_time_key = ExerciseLib::get_time_control_key($objExercise->id, $learnpath_id, $learnpath_item_id);
if ($debug) {
    error_log("4. current_expired_time_key: $current_expired_time_key");
}

$durationTime = array(
    $current_expired_time_key => $current_timestamp
);
Session::write('duration_time', $durationTime);

if ($time_control) {
    // Get the expired time of the current exercise in track_e_exercices.
    $total_seconds = $objExercise->expired_time * 60;
}

$exercise_title	= $objExercise->selectTitle();
$exercise_sound = $objExercise->selectSound();

$show_clock = true;
$user_id = api_get_user_id();

if ($objExercise->selectAttempts() > 0) {
    $attempt_html = null;
    $attempt_count = get_attempt_count($user_id, $exerciseId, $learnpath_id, $learnpath_item_id, $learnpath_item_view_id);

    $warningMessage = Display::return_message(
        sprintf(
            get_lang('ReachedMaxAttempts'),
            $exercise_title,
            $objExercise->selectAttempts()
        ),
        'warning',
        false
    );

    if ($attempt_count >= $objExercise->selectAttempts()) {
        $show_clock = false;
        if (!api_is_allowed_to_edit(null, true)) {

            if ($objExercise->results_disabled == 0 && $origin != 'learnpath') {

                // Showing latest attempt according with task BT#1628.
                $exercise_stat_info = getExerciseResultsByUser(
                    $user_id,
                    $exerciseId,
                    api_get_course_int_id(),
                    api_get_session_id()
                );

                if (!empty($exercise_stat_info)) {
                    $max_exe_id = max(array_keys($exercise_stat_info));
                    $last_attempt_info = $exercise_stat_info[$max_exe_id];
                    $attempt_html .= Display::div(
                        get_lang('Date').': '.api_get_local_time($last_attempt_info['exe_date']),
                        array('id'=>'')
                    );
                    $attempt_html .= $warningMessage;

                    if (!empty($last_attempt_info['question_list'])) {
                        foreach ($last_attempt_info['question_list'] as $question_data) {
                            $question_id = $question_data['question_id'];
                            $marks       = $question_data['marks'];

                            $question_info = Question::read($question_id);
                            $attempt_html .= Display::div($question_info->question, array('class'=>'question_title'));
                            $attempt_html .= Display::div(get_lang('Score').' '.$marks, array('id'=>'question_score'));
                        }
                    }
                    $score = ExerciseLib::show_score($last_attempt_info['exe_result'], $last_attempt_info['exe_weighting']);
                    $attempt_html .= Display::div(get_lang('YourTotalScore').' '.$score, array('id'=>'question_score'));
                } else {
                    $attempt_html .= $warningMessage;
                }
            } else {
                $attempt_html .= $warningMessage;
            }
        } else {
            $attempt_html .= $warningMessage;
        }

        if ($origin == 'learnpath') {
            Display :: display_reduced_header();
        } else {
            Display :: display_header($nameTools, 'Exercises');
        }

        echo $attempt_html;
        if ($origin != 'learnpath') {
            Display :: display_footer();
        }
        exit;
    }
}

$exercise_stat_info = $objExercise->getStatTrackExerciseInfo($learnpath_id, $learnpath_item_id, $learnpath_item_view_id);
/*
if (empty($objExercise->trackExercise)) {
    // 5. Getting user exercise info (if the user took the exam before) - generating exe_id

} else {
    $exercise_stat_info = $objExercise->trackExercise;
}*/

//if (1) {
$questionListInSession = Session::read('questionList');
if (!isset($questionListInSession)) {
    // Selects the list of question ID
    $questionList = $objExercise->getQuestionList();

    // Media questions.
    $media_is_activated = $objExercise->mediaIsActivated();

    // Getting order from random
    if ($media_is_activated == false && $objExercise->isRandom() && isset($exercise_stat_info) && !empty($exercise_stat_info['data_tracking'])) {
    //if ($media_is_activated == false && isset($exercise_stat_info) && !empty($exercise_stat_info['data_tracking'])) {
        $questionList = explode(',', $exercise_stat_info['data_tracking']);
    }
    Session::write('questionList', $questionList);
    if ($debug > 0) {
        error_log('$_SESSION[questionList] was set');
    }
} else {
    if (isset($objExercise) && isset($exerciseInSession)) {
        $questionList = Session::read('questionList');
    }
}


$questionListUncompressedInSession = Session::read('question_list_uncompressed');
if (!isset($questionListUncompressedInSession)) {

    // Fix in order to get the correct question list.
    $questionListUncompressed = $objExercise->getQuestionListWithMediasUncompressed();
    Session::write('question_list_uncompressed', $questionListUncompressed);
} else {
    $questionListUncompressed = $questionListUncompressedInSession;
}
/*
var_dump($questionList);
var_dump($questionListUncompressed);*/

$clock_expired_time = null;

if (empty($exercise_stat_info)) {
    if ($debug) {
        error_log('5  $exercise_stat_info is empty ');
    }
    $total_weight = 0;

    foreach ($questionListUncompressed as $question_id) {
        $objQuestionTmp = Question::read($question_id);
        $total_weight += floatval($objQuestionTmp->weighting);
    }

    if ($time_control) {
        $expected_time = $current_timestamp + $total_seconds;
        $clock_expired_time = api_get_utc_datetime($expected_time);

        // Sessions  that contain the expired time
        $expiredTime = array(
            $current_expired_time_key => $clock_expired_time
        );
        Session::write('expired_time', $expiredTime);
        if ($debug) {
            error_log('5.1. $current_timestamp '.$current_timestamp);
            error_log('5.2. $expected_time '.$expected_time);
            error_log('5.3. $expected_time '.$clock_expired_time);
            error_log('5.4. Setting the $expiredTime: '.$expiredTime[$current_expired_time_key]);
        }
    }
    $exe_id = $objExercise->save_stat_track_exercise_info(
        $clock_expired_time,
        $learnpath_id,
        $learnpath_item_id,
        $learnpath_item_view_id,
        $questionListUncompressed,
        $total_weight
    );
    $exercise_stat_info = $objExercise->getStatTrackExerciseInfo($learnpath_id, $learnpath_item_id, $learnpath_item_view_id);
    if ($debug) {
        error_log("5.5  Creating a new attempt exercise_stat_info[] exe_id : $exe_id");
    }
} else {
    $exe_id = $exercise_stat_info['exe_id'];
    if ($debug) {
        error_log("5  exercise_stat_info[] exists getting exe_id: $exe_id ");
    }
}

// Array to check in order to block the chat
ExerciseLib::create_chat_exercise_session($exe_id);

if ($debug) {
    error_log('6. $objExercise->getStatTrackExerciseInfo function called::  '.print_r($exercise_stat_info, 1));
}

if (!empty($exercise_stat_info['questions_to_check'])) {
    $my_remind_list = $exercise_stat_info['questions_to_check'];
    $my_remind_list = explode(',', $my_remind_list);
    $my_remind_list = array_filter($my_remind_list);
}
if ($debug) {
    error_log("6.0 my_remind_list array: ".print_r($my_remind_list, 1));
}

$params = "exe_id=$exe_id&exerciseId=$exerciseId&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id&".api_get_cidreq();

if ($debug) {
    error_log("6.1 params: $params");
}

if ($reminder == 2 && empty($my_remind_list)) {
    if ($debug) {
        error_log("6.2 calling the exercise_reminder.php ");
    };
    header('Location: '.$urlMainExercise.'exercise_reminder.php?'.$params);
    exit;
}

/*
 * 7. Loading Time control parameters
 * If the expired time is major that zero(0) then the expired time is compute on this time.
 */

if ($time_control) {
    $expiredTimeInSession = Session::read('expired_time');

    if ($debug) {
        error_log('7.1. Time control is enabled.');
        error_log('7.2. $current_expired_time_key:'.$current_expired_time_key);
    }
    if (!isset($expiredTimeInSession[$current_expired_time_key])) {
        if ($debug) {
            error_log('7.3. $expiredTimeInSession[$current_expired_time_key] not set.');
        }
        //Timer - Get expired_time for a student
        if (!empty($exercise_stat_info)) {
            if ($debug) {error_log('7.4 Seems that the session ends and the user want to retake the exam'); };
            $expired_time_of_this_attempt = $exercise_stat_info['expired_time_control'];
            if ($debug) {error_log('7.5 $expired_time_of_this_attempt: '.$expired_time_of_this_attempt); }
            // Get the last attempt of an exercise.
            $last_attempt_date = getLastAttemptDateOfExercise($exercise_stat_info['exe_id']);

            /* This means that the user enters the exam but do not answer the first question we get the date
            from the track_e_exercises not from the track_et_attempt see #2069 */
            if (empty($last_attempt_date)) {
                $diff = $current_timestamp - api_strtotime($exercise_stat_info['start_date'], 'UTC');
                $last_attempt_date = api_get_utc_datetime(api_strtotime($exercise_stat_info['start_date'],'UTC') + $diff);
            } else {
                //Recalculate the time control due #2069
                $diff = $current_timestamp - api_strtotime($last_attempt_date, 'UTC');
                $last_attempt_date = api_get_utc_datetime(api_strtotime($last_attempt_date,'UTC') + $diff);
            }
	        if ($debug) {error_log('7.6. $last_attempt_date: '.$last_attempt_date); }

	        //New expired time - it is due to the possible closure of session
	        $new_expired_time_in_seconds = api_strtotime($expired_time_of_this_attempt, 'UTC') - api_strtotime($last_attempt_date,'UTC');
	        if ($debug) {error_log('7.7. $new_expired_time_in_seconds: '.$new_expired_time_in_seconds); }

	        $expected_time	= $current_timestamp + $new_expired_time_in_seconds;
	        if ($debug) {error_log('7.8. $expected_time: '.$expected_time); }

	        $clock_expired_time  = api_get_utc_datetime($expected_time);
	        if ($debug) {error_log('7.9. $clock_expired_time: '.$clock_expired_time); }

			// First we update the attempt to today
			// How the expired time is changed into "track_e_exercices" table,then the last attempt for this student should be changed too,so
            ExerciseLib::update_attempt_date($exercise_stat_info['exe_id'], $last_attempt_date);

	        // Sessions that contain the expired time
	        $expiredTimeInSession[$current_expired_time_key] 		= $clock_expired_time;
            Session::write('expired_time', $expiredTimeInSession);
	        if ($debug) {
                error_log('7.11. Setting the $expiredTimeInSession: '.$expiredTimeInSession[$current_expired_time_key] );
            };
        }
    } else {
        if ($debug) error_log('7.3. $expiredTimeInSession[$current_expired_time_key]: '.$expiredTimeInSession[$current_expired_time_key]);
        $clock_expired_time =  $expiredTimeInSession[$current_expired_time_key];
    }
} else {
    if ($debug) { error_log("7. No time control"); };
}

// Get time left for expiring time
$time_left = api_strtotime($clock_expired_time,'UTC') - time();

/*
 * The time control feature is enable here - this feature is enable for a jquery plugin called epiclock
 * for more details of how it works see this link : http://eric.garside.name/docs.html?p=epiclock
 */
if ($time_control) {
    //Sends the exercise form when the expired time is finished
	$htmlHeadXtra[] = $objExercise->show_time_control_js($time_left);
}

if ($debug) error_log('8. Question list loaded '.print_r($questionList, 1));

$question_count = $objExercise->getCountCompressedQuestionList();

$urlMainExercise = api_get_path(WEB_CODE_PATH).'exercice/';

if ($formSent && isset($_POST)) {
    if ($debug) { error_log('9. $formSent was sent'); }

    // Initializing
    if (!is_array($exerciseResult)) {
        $exerciseResult = array();
        $exerciseResultCoordinates = array();
    }

    // Only for hot spot
    if (!isset($choice) && isset($_GET['hidden_hotspot_id'])) {
        $hotspot_id = (int)($_GET['hidden_hotspot_id']);
        $choice     = array($hotspot_id => '');
    }

    // Filling array exercise result

    // if the user has answered at least one question
    if (is_array($choice)) {
        if ($debug) { error_log('9.1. $choice is an array '.print_r($choice, 1)); }
        // Also store hot spot spots in the session ($exerciseResultCoordinates
        // will be stored in the session at the end of this script)

        if (isset($_POST['hotspot'])) {
            $exerciseResultCoordinates = $_POST['hotspot'];
            if ($debug) { error_log('9.2. $_POST[hotspot] data '.print_r($exerciseResultCoordinates, 1)); }
        }
        if ($objExercise->type == ALL_ON_ONE_PAGE) {
            // $exerciseResult receives the content of the form.
            // Each choice of the student is stored into the array $choice
            $exerciseResult = $choice;
        } else {
            // gets the question ID from $choice. It is the key of the array
            list ($key) = array_keys($choice);
            // if the user didn't already answer this question
            if (!isset($exerciseResult[$key])) {
                // stores the user answer into the array
                $exerciseResult[$key] = $choice[$key];
                //saving each question
                if ($objExercise->feedback_type != EXERCISE_FEEDBACK_TYPE_DIRECT) {
                 	$questionId   = $key;
                    // gets the student choice for this question
                    $choice = $exerciseResult[$questionId];
                    if (isset($exe_id)) {
                    	//Manage the question and answer attempts
                        if ($debug) { error_log('8.3. manageAnswers exe_id: '.$exe_id.' - $questionId: '.$questionId.' Choice'.print_r($choice,1)); }
                    	$objExercise->manageAnswers($exe_id, $questionId, $choice,'exercise_show',$exerciseResultCoordinates, true, false,false);
                    }
                    //END of saving and qualifying
                }
            }
        }
        if ($debug) {
            error_log('9.3. $choice is an array - end');
            error_log('9.4. $exerciseResult '.print_r($exerciseResult,1));
        }
    }

    // the script "exercise_result.php" will take the variable $exerciseResult from the session
    Session::write('exerciseResult', $exerciseResult);
    //Session::write('remind_list', $remind_list);
    Session::write('exerciseResultCoordinates', $exerciseResultCoordinates);

    // if all questions on one page OR if it is the last question (only for an exercise with one question per page)

    if (($objExercise->type == ALL_ON_ONE_PAGE || $current_question >= $question_count)) {

        if (api_is_allowed_to_session_edit()) {
            // goes to the script that will show the result of the exercise
            if ($objExercise->type == ALL_ON_ONE_PAGE) {
                if ($debug) { error_log('10. Exercise ALL_ON_ONE_PAGE -> Redirecting to exercise_result.php'); }

                //We check if the user attempts before sending to the exercise_result.php
                if ($objExercise->selectAttempts() > 0) {
                    $attempt_count = get_attempt_count(api_get_user_id(), $exerciseId, $learnpath_id, $learnpath_item_id, $learnpath_item_view_id);
                    if ($attempt_count >= $objExercise->selectAttempts()) {
                        Display :: display_warning_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), false);
                        if ($origin != 'learnpath') {
                            //so we are not in learnpath tool
                            echo '</div>'; //End glossary div
                            Display :: display_footer();
                        } else {
                            echo '</body></html>';
                        }
                    }
                }
                header("Location: ".$urlMainExercise."exercise_result.php?".api_get_cidreq()."&exe_id=$exe_id&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id");
                exit;
            } else {
                // Time control is only enabled for ONE PER PAGE

                if (!empty($exe_id) && is_numeric($exe_id)) {
                    //Verify if the current test is fraudulent
                    if (ExerciseLib::exercise_time_control_is_valid($exerciseId, $learnpath_id, $learnpath_item_id)) {
                    	$sql_exe_result = "";
                        if ($debug) { error_log('exercise_time_control_is_valid is valid'); }
                    } else {
                    	$sql_exe_result = ", exe_result = 0";
                        if ($debug) { error_log('exercise_time_control_is_valid is NOT valid then exe_result = 0 '); }
                    }
                }
                if ($debug) { error_log('10. Redirecting to exercise_show.php'); }
                header("Location: ".$urlMainExercise."exercise_result.php?".api_get_cidreq()."&exe_id=$exe_id&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id");
                exit;
            }
        } else {
            if ($debug) { error_log('10. Redirecting to exercise_submit.php'); }
            header("Location: ".$urlMainExercise."exercise_submit.php?".api_get_cidreq()."&exerciseId=$exerciseId&origin=$origin");
            exit;
        }
    }
    if ($debug) { error_log('11. $formSent was set - end'); }
} else {
    if ($debug) { error_log('9. $formSent was NOT sent'); }
}

// Getting the latest questionId
$latestQuestionId = getLatestQuestionIdFromAttempt($exe_id);

if (is_null($current_question)) {
    $current_question = 1;
    if ($latestQuestionId) {
        $current_question = $objExercise->getPositionInCompressedQuestionList($latestQuestionId);
    }
} else {
    if ($current_question != count($questionList) || $endExercise) {
        $current_question++;
    }
}

if ($question_count != 0) {
	if (($objExercise->type == ALL_ON_ONE_PAGE || $current_question > $question_count)) {
	    if (api_is_allowed_to_session_edit()) {
	        // goes to the script that will show the result of the exercise
	        if ($objExercise->type == ALL_ON_ONE_PAGE) {
	            if ($debug) { error_log('12. Exercise ALL_ON_ONE_PAGE -> Redirecting to exercise_result.php'); }

	            //We check if the user attempts before sending to the exercise_result.php
	            if ($objExercise->selectAttempts() > 0) {
	                $attempt_count = get_attempt_count(api_get_user_id(), $exerciseId, $learnpath_id, $learnpath_item_id, $learnpath_item_view_id);
	                if ($attempt_count >= $objExercise->selectAttempts()) {
	                    Display :: display_warning_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), false);
	                    if ($origin != 'learnpath') {
	                        //so we are not in learnpath tool
	                        echo '</div>'; //End glossary div
	                        Display :: display_footer();
	                    } else {
	                        echo '</body></html>';
	                    }
	                    exit;
	                }
	            }
	        } else {
	            //Time control is only enabled for ONE PER PAGE
	            if (!empty($exe_id) && is_numeric($exe_id)) {
	                //Verify if the current test is fraudulent
	            	$check = ExerciseLib::exercise_time_control_is_valid($exerciseId, $learnpath_id, $learnpath_item_id);

	                if ($check) {
	                	$sql_exe_result = "";
	                    if ($debug) { error_log('12. exercise_time_control_is_valid is valid'); }
	                } else {
	                	$sql_exe_result = ", exe_result = 0";
	                    if ($debug) { error_log('12. exercise_time_control_is_valid is NOT valid then exe_result = 0 '); }
	                }
	            }

	            if ($objExercise->review_answers) {
	            	//header('Location: '.$urlMainExercise.'exercise_reminder.php?'.$params);
                    header("Location: ".$urlMainExercise."exercise_result.php?".api_get_cidreq()."&exe_id=$exe_id&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id");
	            	exit;
	            } else {
	            	header("Location: ".$urlMainExercise."exercise_result.php?".api_get_cidreq()."&exe_id=$exe_id&origin=$origin&learnpath_id=$learnpath_id&learnpath_item_id=$learnpath_item_id&learnpath_item_view_id=$learnpath_item_view_id");
                    exit;
	            }
	        }
	    } else {
	        if ($debug) { error_log('Redirecting to exercise_submit.php'); }
	        exit;
	    }
	}
} else {
	$error = get_lang('ThereAreNoQuestionsForThisExercise');
	// if we are in the case where user select random by category, but didn't choose the number of random question
	if ($objExercise->selectRandomByCat() > 0 && $objExercise->random <= 0) {
		$error .= "<br/>".get_lang('PleaseSelectSomeRandomQuestion');
	}
}

if (!empty ($_GET['gradebook']) && $_GET['gradebook'] == 'view') {
    $_SESSION['gradebook'] = Security :: remove_XSS($_GET['gradebook']);
    $gradebook = $_SESSION['gradebook'];
} elseif (empty ($_GET['gradebook'])) {
    unset ($_SESSION['gradebook']);
    $gradebook = '';
}

if (!empty ($gradebook) && $gradebook == 'view') {
    $interbreadcrumb[]= array ('url' => '../gradebook/' . Security::remove_XSS($_SESSION['gradebook_dest']),'name' => get_lang('ToolGradebook'));
}
$interbreadcrumb[]= array ("url" => $urlMainExercise."exercice.php?gradebook=$gradebook",	"name" => get_lang('Exercices'));
$interbreadcrumb[]= array ("url" => "#","name" => $objExercise->name);

if ($origin != 'learnpath') {
    //so we are not in learnpath tool
    Display :: display_header($nameTools, 'Exercises');
} else {
    Display::display_reduced_header();
    echo '<div style="height:10px">&nbsp;</div>';
}

if (!api_is_allowed_to_session_edit()) {
    $sessionId = api_get_session_id();
    if (!empty($sessionId)) {
        $session_visibility = api_get_session_visibility($sessionId);
        switch ($session_visibility) {
            case SESSION_VISIBLE_READ_ONLY:
                Display::display_warning_message(get_lang('SessionIsReadOnly'));
                break;
            case SESSION_INVISIBLE:
                api_not_allowed(true);
                break;
        }
    }
}

$show_quiz_edition = $objExercise->added_in_lp();

// I'm in a preview mode
if (api_is_course_admin() && $origin != 'learnpath') {
    echo '<div class="actions">';
    if ($show_quiz_edition == false) {
    	echo '<a href="'.$urlMainExercise.'exercise_admin.php?' . api_get_cidreq() . '&modifyExercise=yes&exerciseId=' . $objExercise->id . '">'.Display :: return_icon('settings.png', get_lang('ModifyExercise'),'',ICON_SIZE_MEDIUM).'</a>';
    } else {
    	echo '<a href="#">'.Display::return_icon('settings_na.png', get_lang('ModifyExercise'),'',ICON_SIZE_MEDIUM).'</a>';
    }
    echo '</div>';
}

// Timer control.
if ($time_control) {
    echo $objExercise->returnTimeLeftDiv();
	echo '<div style="display:none" class="warning-message" id="expired-message-id">'.get_lang('ExerciceExpiredTimeMessage').'</div>';
}

if ($objExercise->type == ONE_PER_PAGE) {
    echo $objExercise->getProgressPagination(
        $exe_id,
        $questionList,
        $questionListUncompressed,
        $my_remind_list,
        $reminder,
        $remind_question_id,
        api_get_self().'?'.$params,
        $current_question
    );
}

$is_visible_return = $objExercise->is_visible($learnpath_id, $learnpath_item_id, $learnpath_item_view_id);
if ($is_visible_return['value'] == false) {
    echo $is_visible_return['message'];
    if ($origin != 'learnpath') {
        Display :: display_footer();
    }
    exit;
}

$limit_time_exists = (($objExercise->start_time != '0000-00-00 00:00:00') || ($objExercise->end_time != '0000-00-00 00:00:00')) ? true : false;

if ($limit_time_exists) {
    $exercise_start_time 	= api_strtotime($objExercise->start_time, 'UTC');
    $exercise_end_time 		= api_strtotime($objExercise->end_time, 'UTC');
    $time_now 				= time();

    if ($objExercise->start_time != '0000-00-00 00:00:00') {
        $permission_to_start = (($time_now - $exercise_start_time) > 0) ? true : false;
    } else {
        $permission_to_start = true;
    }
    if ($_SERVER['REQUEST_METHOD'] != 'POST') {
        if ($objExercise->end_time != '0000-00-00 00:00:00') {
            $exercise_timeover = (($time_now - $exercise_end_time) > 0) ? true : false;
        } else {
            $exercise_timeover = false;
        }
    }

    if (!$permission_to_start || $exercise_timeover) {
        if (!api_is_allowed_to_edit(null,true)) {
            $message_warning = $permission_to_start ? get_lang('ReachedTimeLimit') : get_lang('ExerciseNoStartedYet');
            Display :: display_warning_message(sprintf($message_warning, $exercise_title, $objExercise->selectAttempts()));
            if ($origin != 'learnpath') {
            	Display::display_footer();
            }
            exit;
        } else {
            $message_warning = $permission_to_start ? get_lang('ReachedTimeLimitAdmin') : get_lang('ExerciseNoStartedAdmin');
            Display::display_warning_message(sprintf($message_warning, $exercise_title, $objExercise->selectAttempts()));
        }
    }
}

// Blocking empty start times see BT#2800
global $_custom;
if (isset($_custom['exercises_hidden_when_no_start_date']) && $_custom['exercises_hidden_when_no_start_date']) {
	if (empty($objExercise->start_time) || $objExercise->start_time == '0000-00-00 00:00:00') {
		Display::display_warning_message(sprintf(get_lang('ExerciseNoStartedYet'), $exercise_title, $objExercise->selectAttempts()));
		if ($origin != 'learnpath') {
			Display::display_footer();
		}
	}
}

if (!empty($objExercise->description)) {
    echo '<br />';
    echo Display::generate_accordion(array(array('title' => get_lang('ExerciseDescriptionLabel'), 'content' => $objExercise->description)), 'jquery', 'exercise-description-content');
}

if ($origin != 'learnpath') {
   echo '<div id="highlight-plugin" class="glossary-content">';
}

// Default reminder behaviour
if ($reminder == 2)  {
    if ($debug) { error_log(' $reminder == 2'); }

    $data_tracking  = $exercise_stat_info['data_tracking'];
    $data_tracking  = explode(',', $data_tracking);

    // Set by default the 1st question
    $current_question = 1;

    if (!empty($my_remind_list)) {
    	// Checking which questions we are going to call from the remind list
		for ($i = 0; $i < count($data_tracking); $i++) {
			for($j = 0; $j < count($my_remind_list); $j++) {

				if (!empty($remind_question_id)) {
					if ($remind_question_id == $my_remind_list[$j]) {
			        	if ($remind_question_id == $data_tracking[$i]) {
			        		if (isset($my_remind_list[$j+1])) {
			        			$remind_question_id = $my_remind_list[$j+1];
			        			$current_question = $i + 1;
			        		} else {
			        			$remind_question_id = -1; //We end the remind list we go to the exercise_reminder.php please
			        			$current_question = $i + 1; // last question
			        		}
			        		break 2;
			            }
					}
				} else {
					if ($my_remind_list[$j] == $data_tracking[$i]) {
						if (isset($my_remind_list[$j+1])) {
							$remind_question_id = $my_remind_list[$j+1];
							$current_question = $i + 1; // last question
						} else {
							$remind_question_id = -1; //We end the remind list we go to the exercise_reminder.php please
							$current_question = $i + 1; // last question
						}
						break 2;
					}
				}
			}
        }
    } else {
    	if ($objExercise->review_answers) {
            if ($debug) { error_log('Redirecting to exercise_reminder.php '); }
	    	header("Location: ".$urlMainExercise."exercise_reminder.php?$params");
	    	exit;
    	}
    }
}

// Changing next question button
if ($objExercise->review_answers) {
	$script_php = $urlMainExercise.'exercise_reminder.php';
} else {
	$script_php = $urlMainExercise.'exercise_result.php';
}

if (!empty($error)) {
    Display :: display_error_message($error, false);
} else {
    if (!empty($exercise_sound)) {
        echo '<a href="'.api_get_path(WEB_CODE_PATH).'document/download.php?doc_url=%2Faudio%2F'.Security::remove_XSS($exercise_sound).'" target="_blank">
        '.Display::return_icon('sound.gif', get_lang('Sound')).'</a>';
    }

    // Get number of hotspot questions for javascript validation
    $number_of_hotspot_questions = 0;
    $onsubmit = '';
    $i = 0;
    if (!empty($questionList)) {
        foreach ($questionList as $questionId) {
            // for sequential exercises
            if ($objExercise->type == ONE_PER_PAGE) {
                // if it is not the right question, goes to the next loop iteration
                if ($current_question != $i) {
                    continue;
                } else {
                    $objQuestionTmp = Question::read($questionId);
                    if ($objQuestionTmp->selectType() == HOT_SPOT || $objQuestionTmp->selectType() == HOT_SPOT_DELINEATION) {
                        $number_of_hotspot_questions++;
                    }
                    break;
                }
            } else {
                $objQuestionTmp = Question::read($questionId);
                if ($objQuestionTmp->selectType() == HOT_SPOT || $objQuestionTmp->selectType() == HOT_SPOT_DELINEATION) {
                    $number_of_hotspot_questions++;
                }
            }
            $i++;
        }
    }

    if ($number_of_hotspot_questions > 0) {
        $onsubmit = " onsubmit=\"return validateFlashVar('".$number_of_hotspot_questions."', '" .get_lang('HotspotValidateError1')."', '".get_lang('HotspotValidateError2')."');\"";
    }

    $currentQuestionJsVariable = $current_question;

    if ($objExercise->review_answers) {
        $customCurrentQuestion = $objExercise->getNextQuestionId($exeId, $exercise_stat_info, $my_remind_list, $current_question);
        //var_dump($customCurrentQuestion);
        if (!empty($customCurrentQuestion)) {
            $currentQuestionJsVariable = $customCurrentQuestion;
        }
    }

    echo $objExercise->returnWarningJs(null);

    echo '<script>
            $(function() {
    		    $(".main_question").mouseover(function() {
    		    	//$(this).find(".exercise_save_now_button").show();
    		    	//$(this).addClass("question_highlight");
                });

                $(".main_question").mouseout(function() {
                	//$(this).find(".exercise_save_now_button").hide();
                	$(this).removeClass("question_highlight");
                });

                $(".no_remind_highlight").hide();
    		});

			function previous_question(question_num) {
				url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num="+question_num;
				window.location = url;
			}

            function previous_question_and_save(previous_question_id, question_id_to_save) {
                url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num="+previous_question_id;
                // Save the current question.
                save_now(question_id_to_save, url);
            }

            function save_question_list(question_list, showWarning) {
                if (showWarning == 1) {
                    $("#dialog-confirm").data("question_list", question_list);
                    $("#dialog-confirm").dialog("open");
                } else {
                    saveQuestionList(question_list);
                }
            }

            function saveQuestionList(question_list) {
                var redirect = true;
                $.each(question_list, function(key, question_id) {
                    result = save_now(question_id, null, false, 0);
                    if (result == "answer_required") {
                        redirect = false;
                    }
                });
                var url = "";
                if ('.$reminder.' == 1) {
                    url = "'.$urlMainExercise.'exercise_reminder.php?'.$params.'&num='.$currentQuestionJsVariable.'";
                } else if ('.$reminder.' == 2 ) {
                    url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num='.$currentQuestionJsVariable.'&remind_question_id='.$remind_question_id.'&reminder=2";
                } else {
                    url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num='.$currentQuestionJsVariable.'&remind_question_id='.$remind_question_id.'";
                }
                //$("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('save.png', get_lang('Saved'), array(), ICON_SIZE_SMALL)).'");
                if (redirect) {
                    window.location = url;
                }
            }

            function save_now(question_id, url_extra, redirect, showWarning) {
                if (redirect == undefined) {
                    redirect = true;
                }

                var result = false;

                if (showWarning == 1) {
                    $("#dialog-confirm").data("question_id", question_id);
                    $("#dialog-confirm").data("url_extra", url_extra);
                    $("#dialog-confirm").data("redirect", redirect);
                    $("#dialog-confirm").data("end_exercise", 1);
                    $("#dialog-confirm").dialog("open");
                } else {
                    result = saveNow(question_id, url_extra, redirect, 0);
                }
                return result;
            }

            function saveNow(question_id, url_extra, redirect, end_exercise)
            {
           		//1. Normal choice inputs
           		var my_choice = $(\'*[name*="choice[\'+question_id+\']"]\').serialize();

           		//2. Reminder checkbox
           		var remind_list = $(\'*[name*="remind_list"]\').serialize();

           		//3. Hotspots
           		var hotspot = $(\'*[name*="hotspot[\'+question_id+\']"]\').serialize();

                var ckeditor = CKEDITOR.instances[\'choice[\'+question_id+\']\'];

                if (ckeditor) {
                    value = ckeditor.getData();
                    my_choice = {};
                    my_choice["choice["+question_id+"]"] = value;
                    my_choice = $.param(my_choice);
                }

                if ($(\'input[name="remind_list[\'+question_id+\']"]\').is(\':checked\')) {
                	$("#question_div_"+question_id).addClass("remind_highlight");
                } else {
                	$("#question_div_"+question_id).removeClass("remind_highlight");
                }

           		// Only for the first time

          		$("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('loading1.gif')).'");
          		var mainResult = false;

                $.ajax({
                    type : "post",
                    async: false,
                    url: "'.api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?a=save_exercise_by_now",
                    data: "'.$params.'&type=simple&question_id="+question_id+"&"+my_choice+"&"+hotspot+"&"+remind_list,
                    success: function(return_value) {
                        mainResult =  return_value;
                        if (return_value == "ok") {
                            $("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('save.png', get_lang('Saved'), array(), ICON_SIZE_SMALL)).'");
                        } else if (return_value == "error") {
                            $("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('error.png', get_lang('Error'), array(), ICON_SIZE_SMALL)).'");
                        } else if (return_value == "answer_required") {
                            $("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('warning.png', get_lang('warning'), array(), ICON_SIZE_SMALL).
                            " ".get_lang('SelectAnAnswerToContinue')).'");
                        } else if (return_value == "one_per_page") {

                            var url = "";
                            // Redirect to reminder
                            if ('.$reminder.' == 1) {
                                url = "'.$urlMainExercise.'exercise_reminder.php?'.$params.'&num='.$currentQuestionJsVariable.'";
                            } else if ('.$reminder.' == 2 ) {
                                url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num='.$currentQuestionJsVariable.'&remind_question_id='.$remind_question_id.'&reminder=2";
                            } else {
                                url = "'.$urlMainExercise.'exercise_submit.php?'.$params.'&num='.$currentQuestionJsVariable.'&remind_question_id='.$remind_question_id.'";
                            }

                            url = url + "&end_exercise="+end_exercise;

                            if (url_extra) {
                                url = url_extra;
                            }

                            $("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('save.png', get_lang('Saved'), array(), ICON_SIZE_SMALL)).'");

                            if (redirect) {
                                window.location = url;
                            }
                        }
                    },
                    error: function() {
                        $("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('error.png', get_lang('Error'), array(), ICON_SIZE_SMALL)).'");
                    }
                });
                return mainResult;
            }

            function save_now_all(validate) {
            	//1. Input choice
           		var my_choice = $(\'*[name*="choice"]\').serialize();

           		//2. Reminder
           		var remind_list = $(\'*[name*="remind_list"]\').serialize();

           		//3. Hotspots
           		var hotspot = $(\'*[name*="hotspot"]\').serialize();

           		//Question list
           		var question_list = ['.implode(',', $questionList).'];

           		var free_answers = {};

           		$.each(question_list, function(index, my_question_id) {
           			//Checking FCK
           			if (typeof(FCKeditorAPI) !== "undefined") {
               			var oEditor = FCKeditorAPI.GetInstance("choice["+my_question_id+"]") ;
        				var fck_content = "";
        				if (oEditor) {
                   			fck_content = oEditor.GetHTML();
                   			//alert(index + "  " +my_question_id + " " +fck_content);
                   		 	free_answers["free_choice["+my_question_id+"]"] = fck_content;
                   		}
               		}
           		});

           		free_answers = $.param(free_answers);

          		$("#save_all_reponse").html("'.addslashes(Display::return_icon('loading1.gif')).'");

                $.ajax({
                    type:"post",
                    async: false,
                    url: "'.api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?a=save_exercise_by_now",
                    data: "'.$params.'&type=all&"+my_choice+"&"+hotspot+"&"+free_answers+"&"+remind_list,
                    success: function(return_value) {
                    	if (return_value == "ok") {
                    		//$("#save_all_reponse").html("'.addslashes(Display::return_icon('accept.png')).'");
                    		if (validate == "validate") {
                            	window.location = "'.$script_php.'?'.$params.'";
                            } else {
                            	$("#save_all_reponse").html("'.addslashes(Display::return_icon('accept.png')).'");
                            }
                    	} else {
                        	$("#save_all_reponse").html("'.addslashes(Display::return_icon('wrong.gif')).'");
                        }
                    }
                });
                return false;
            }

            function validate_all() {
   				save_now_all("validate");
                return false;
            }
		</script>';

	// Show list of questions.
    $attempt_list = array();
    if (isset($exe_id)) {
        $attempt_list = getAllExerciseEventByExeId($exe_id);
    }

    $remind_list = array();
    if (isset($exercise_stat_info['questions_to_check']) && !empty($exercise_stat_info['questions_to_check'])) {
        $remind_list = explode(',', $exercise_stat_info['questions_to_check']);
    }
    echo '<form id="exercise_form" method="post" action="'.api_get_path(WEB_PUBLIC_PATH).'main/exercice/exercise_submit.php?'.api_get_cidreq().'&autocomplete=off&gradebook='.$gradebook."&exerciseId=".$exerciseId .'" name="frm_exercise" '.$onsubmit.'>
     <input type="hidden" name="formSent"				value="1" />
     <input type="hidden" name="exerciseId" 			value="'.$exerciseId . '" />
     <input type="hidden" name="num" 					value="'.$currentQuestionJsVariable.'" id="num_current_id" />
     <input type="hidden" name="exe_id" 				value="'.$exe_id . '" />
     <input type="hidden" name="origin" 				value="'.$origin . '" />
     <input type="hidden" name="learnpath_id" 			value="'.$learnpath_id . '" />
     <input type="hidden" name="learnpath_item_id" 		value="'.$learnpath_item_id . '" />
     <input type="hidden" name="learnpath_item_view_id" value="'.$learnpath_item_view_id . '" />';

    $objExercise->renderQuestionList($questionList, $current_question, $exerciseResult, $attempt_list, $remind_list);
    echo '</form>';
    echo $objExercise->returnWarningHtml();
}

if ($origin != 'learnpath') {
    echo '</div>'; //End glossary div
    Display :: display_footer();
} else {
    echo '</body></html>';
}