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

1147 lines
47 KiB

<?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
*
* Notice : This script is also used to show a question before modifying it by
* the administrator
* @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)
* Modified by hubert.borderiou (2011-10-21 question category)
*/
use ChamiloSession as Session;
require_once '../inc/global.inc.php';
$current_course_tool = TOOL_QUIZ;
$this_section = SECTION_COURSES;
$debug = false;
// Notice for unauthorized people.
api_protect_course_script(true);
$origin = isset($_REQUEST['origin']) ? Security::remove_XSS($_REQUEST['origin']) : '';
$is_allowedToEdit = api_is_allowed_to_edit(null,true);
$glossaryExtraTools = api_get_setting('show_glossary_in_extra_tools');
$showGlossary = in_array($glossaryExtraTools, array('true', 'exercise', 'exercise_and_lp'));
if ($origin == 'learnpath') {
$showGlossary = in_array($glossaryExtraTools, array('true', 'lp', 'exercise_and_lp'));
}
if ($showGlossary) {
$htmlHeadXtra[] = '<script type="text/javascript" src="'.api_get_path(WEB_CODE_PATH).'glossary/glossary.js.php"></script>';
$htmlHeadXtra[] = api_get_js('jquery.highlight.js');
}
$htmlHeadXtra[] = api_get_js('jquery.jsPlumb.all.js');
$htmlHeadXtra[] = api_get_js('d3/jquery.xcolor.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');
$template = new Template();
$htmlHeadXtra[] = $template->fetch('default/exercise/submit.js.tpl');
// General parameters passed via POST/GET
$learnpath_id = isset($_REQUEST['learnpath_id']) ? intval($_REQUEST['learnpath_id']) : 0;
$learnpath_item_id = isset($_REQUEST['learnpath_item_id']) ? intval($_REQUEST['learnpath_item_id']) : 0;
$learnpath_item_view_id = isset($_REQUEST['learnpath_item_view_id']) ? intval($_REQUEST['learnpath_item_view_id']) : 0;
$reminder = isset($_REQUEST['reminder']) ? intval($_REQUEST['reminder']) : 0;
$remind_question_id = isset($_REQUEST['remind_question_id']) ? intval($_REQUEST['remind_question_id']) : 0;
$exerciseId = isset($_REQUEST['exerciseId']) ? intval($_REQUEST['exerciseId']) : 0;
$formSent = isset($_REQUEST['formSent']) ? $_REQUEST['formSent'] : null;
$exerciseResult = isset($_REQUEST['exerciseResult']) ? $_REQUEST['exerciseResult'] : null;
$exerciseResultCoordinates = isset($_REQUEST['exerciseResultCoordinates']) ? $_REQUEST['exerciseResultCoordinates'] : null;
$choice = isset($_REQUEST['choice']) ? $_REQUEST['choice'] : null;
$choice = empty($choice) ? isset($_REQUEST['choice2']) ? $_REQUEST['choice2'] : null : null;
//From submit modal
$current_question = isset($_REQUEST['num']) ? intval($_REQUEST['num']) : null;
$currentAnswer = isset($_REQUEST['num_answer']) ? intval($_REQUEST['num_answer']) : null;
//Error message
$error = '';
//Table calls
$exercice_attemp_table = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
/* Teacher takes an exam and want to see a preview,
we delete the objExercise from the session in order to get the latest
changes in the exercise */
if (api_is_allowed_to_edit(null,true) && isset($_GET['preview']) && $_GET['preview'] == 1 ) {
Session::erase('objExercise');
}
// 1. Loading the $objExercise variable
if (!isset($_SESSION['objExercise']) || $_SESSION['objExercise']->id != $_REQUEST['exerciseId']) {
// Construction of Exercise
$objExercise = new Exercise();
Session::write('firstTime', true);
if ($debug) {error_log('1. Setting the $objExercise variable'); };
unset($_SESSION['questionList']);
// 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. $_SESSION[objExercise] was unset - set now - end'); };
}
} else {
Session::write('firstTime', false);
}
//2. Checking if $objExercise is set
if (!isset($objExercise) && isset($_SESSION['objExercise'])) {
if ($debug) { error_log('2. Loading $objExercise from session'); };
$objExercise = $_SESSION['objExercise'];
}
//3. $objExercise is not set, then return to the exercise list
if (!is_object($objExercise)) {
if ($debug) {error_log('3. $objExercise was not set, kill the script'); };
header('Location: exercice.php');
exit;
}
// If reminder ends we jump to the exercise_reminder
if ($objExercise->review_answers) {
if ($remind_question_id == -1) {
header('Location: exercise_reminder.php?origin='.$origin.'&exerciseId='.$exerciseId);
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);
$_SESSION['duration_time'][$current_expired_time_key] = $current_timestamp;
if ($time_control) {
// Get the expired time of the current exercice in track_e_exercises
$total_seconds = $objExercise->expired_time*60;
}
$show_clock = true;
$user_id = api_get_user_id();
if ($objExercise->selectAttempts() > 0) {
$attempt_html = '';
$attempt_count = Event::get_attempt_count(
$user_id,
$exerciseId,
$learnpath_id,
$learnpath_item_id,
$learnpath_item_view_id
);
if ($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 = Event::getExerciseResultsByUser(
$user_id,
$exerciseId,
api_get_course_id(),
api_get_session_id()
);
if (!empty($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 .= Display::return_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), 'warning', false);
if (!empty($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 .= Display::return_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), 'warning', false);
}
} else {
$attempt_html .= Display::return_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), 'warning', false);
}
} else {
$attempt_html .= Display :: return_message(sprintf(get_lang('ReachedMaxAttempts'), $exercise_title, $objExercise->selectAttempts()), 'warning', false);
}
if ($origin == 'learnpath') {
Display :: display_reduced_header();
} else {
Display :: display_header($nameTools,'Exercises');
}
echo $attempt_html;
if ($origin != 'learnpath')
Display :: display_footer();
exit;
}
}
if ($debug) {
error_log("4. Setting the exe_id: $exe_id");
}
/* 5. Getting user exercise info (if the user took the exam before)
generating exe_id */
$exercise_stat_info = $objExercise->get_stat_track_exercise_info(
$learnpath_id,
$learnpath_item_id,
$learnpath_item_view_id
);
$clock_expired_time = null;
if (empty($exercise_stat_info)) {
if ($debug) error_log('5 $exercise_stat_info is empty ');
$total_weight = 0;
$questionList = $objExercise->get_validated_question_list();
foreach ($questionList as $question_id) {
$objQuestionTmp = Question::read($question_id);
$total_weight += floatval($objQuestionTmp->weighting);
}
if ($time_control) {
$expected_time = $current_timestamp + $total_seconds;
if ($debug) error_log('5.1. $current_timestamp '.$current_timestamp);
if ($debug) error_log('5.2. $expected_time '.$expected_time);
$clock_expired_time = api_get_utc_datetime($expected_time);
if ($debug) error_log('5.3. $expected_time '.$clock_expired_time);
//Sessions that contain the expired time
$_SESSION['expired_time'][$current_expired_time_key] = $clock_expired_time;
if ($debug) { error_log('5.4. Setting the $_SESSION[expired_time]: '.$_SESSION['expired_time'][$current_expired_time_key] ); };
}
$exe_id = $objExercise->save_stat_track_exercise_info(
$clock_expired_time,
$learnpath_id,
$learnpath_item_id,
$learnpath_item_view_id,
$questionList,
$total_weight
);
$exercise_stat_info = $objExercise->get_stat_track_exercise_info(
$learnpath_id,
$learnpath_item_id,
$learnpath_item_view_id
);
if ($debug) error_log("5.5 exercise_stat_info[] exists getting exe_id $exe_id");
} else {
$exe_id = $exercise_stat_info['exe_id'];
// Remember last question id position.
$isFirstTime = Session::read('firstTime');
if ($isFirstTime && $objExercise->type == ONE_PER_PAGE) {
$resolvedQuestions = Event::getAllExerciseEventByExeId($exe_id);
if (!empty($resolvedQuestions) &&
!empty($exercise_stat_info['data_tracking'])
) {
$last = current(end($resolvedQuestions));
$attemptQuestionList = explode(',', $exercise_stat_info['data_tracking']);
$count = 1;
foreach ($attemptQuestionList as $question) {
if ($last['question_id'] == $question) {
break;
}
$count++;
}
$current_question = $count;
}
}
if ($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. $objExercise->get_stat_track_exercise_info function called:: '.print_r($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);
}
$params = "exe_id=$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: 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) {
if ($debug) error_log('7.1. Time control is enabled');
if ($debug) error_log('7.2. $current_expired_time_key '.$current_expired_time_key);
if ($debug) error_log('7.3. $_SESSION[expired_time][$current_expired_time_key] '.$_SESSION['expired_time'][$current_expired_time_key]);
if (!isset($_SESSION['expired_time'][$current_expired_time_key])) {
//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
$last_attempt_date = Event::getLastAttemptDateOfExercise($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. $expected_time1: '.$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_exercises" table,
then the last attempt for this student should be changed too */
$sql = "UPDATE $exercice_attemp_table SET
tms = '".api_get_utc_datetime()."'
WHERE
exe_id = '".$exercise_stat_info['exe_id']."' AND
tms = '".$last_attempt_date."' ";
if ($debug) {error_log('7.10. $sql: '.$sql); }
Database::query($sql);
//Sessions that contain the expired time
$_SESSION['expired_time'][$current_expired_time_key] = $clock_expired_time;
if ($debug) {error_log('7.11. Setting the $_SESSION[expired_time]: '.$_SESSION['expired_time'][$current_expired_time_key] ); };
}
} else {
$clock_expired_time = $_SESSION['expired_time'][$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 the user has submitted the form
$exercise_title = $objExercise->selectTitle();
$exercise_sound = $objExercise->selectSound();
//in LP's is enabled the "remember question" feature?
if (!isset($_SESSION['questionList'])) {
// selects the list of question ID
$questionList = $objExercise->get_validated_question_list();
if ($objExercise->isRandom() && !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($_SESSION['objExercise'])) {
$questionList = $_SESSION['questionList'];
}
}
if ($debug) error_log('8. Question list loaded '.print_r($questionList, 1));
//Real question count
$question_count = 0;
if (!empty($questionList)) {
$question_count = count($questionList);
}
if ($formSent && isset($_POST)) {
if ($debug) { error_log('9. $formSent was set'); }
// Initializing
if (!is_array($exerciseResult)) {
$exerciseResult = array();
$exerciseResultCoordinates = array();
}
//Only for hotspot
if (!isset($choice) && isset($_REQUEST['hidden_hotspot_id'])) {
$hotspot_id = (int)($_REQUEST['hidden_hotspot_id']);
$choice = array($hotspot_id => '');
}
// 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 hotspot 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) {
$nro_question = $current_question; // - 1;
$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. manage_answer exe_id: '.$exe_id.' - $questionId: '.$questionId.' Choice'.print_r($choice,1)); }
$objExercise->manage_answer(
$exe_id,
$questionId,
$choice,
'exercise_show',
$exerciseResultCoordinates,
true,
false,
false,
$objExercise->propagate_neg,
array()
);
}
//END of saving and qualifying
}
}
}
if ($debug) { error_log('9.3. $choice is an array - end'); }
if ($debug) { 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 = Event::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: 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_show.php'); }
header("Location: 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: 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. $formSent was NOT sent'); }
}
// If questionNum comes from POST and not from GET
if (!$current_question || isset($_REQUEST['num']) && $_REQUEST['num']) {
if (!$current_question) {
$current_question = 1;
} else {
$current_question++;
}
}
if ($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 = Event::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 {
if ($objExercise->review_answers) {
header('Location: exercise_reminder.php?'.$params);
exit;
} else {
header("Location: 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" => "exercice.php?".api_get_cidreq(), "name" => get_lang('Exercices'));
$interbreadcrumb[] = array ("url" => "#", "name" => $objExercise->name);
if ($origin != 'learnpath') { //so we are not in learnpath tool
Display :: display_header(null,'Exercises');
if (!api_is_allowed_to_session_edit() ) {
Display :: display_warning_message(get_lang('SessionIsReadOnly'));
}
} else {
Display::display_reduced_header();
echo '<div style="height:10px">&nbsp;</div>';
}
$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="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>';
}
$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();
}
}
}
//Timer control
if ($time_control) {
echo $objExercise->return_time_left_div();
echo '<div style="display:none" class="warning-message" id="expired-message-id">'.get_lang('ExerciceExpiredTimeMessage').'</div>';
}
if (!empty($objExercise->description)) {
echo "<script>
$(function() {
$('#description_content').accordion({
changestart: function(event, ui) {
//var clicked = $(this).find('.ui-state-active').attr('id');
//$('#'+clicked).load('/widgets/'+clicked);
$('#collapse1').html(".json_encode($objExercise->description).");
}
});
});
</script>";
echo Display::generate_accordion(array(array('title' => get_lang('ExerciseDescriptionLabel'), 'content' => null)), 'jquery', 'description_content');
}
if ($origin != 'learnpath') {
echo '<div id="highlight-plugin" class="glossary-content">';
}
if ($reminder == 2) {
if ($debug) { error_log(' $reminder == 2'); }
$data_tracking = $exercise_stat_info['data_tracking'];
$data_tracking = explode(',', $data_tracking);
$current_question = 1; //set by default the 1st question
if (!empty($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 {
// We end the remind list we go to the exercise_reminder.php please
$remind_question_id = -1;
$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 {
// We end the remind list we go to the exercise_reminder.php please
$remind_question_id = -1;
$current_question = $i + 1; // last question
}
break 2;
}
}
}
}
} else {
if ($objExercise->review_answers) {
if ($debug) { error_log('. redirecting to exercise_reminder.php '); }
header("Location: exercise_reminder.php?$params");
exit;
}
}
}
if ($objExercise->review_answers) {
$script_php = 'exercise_reminder.php';
} else {
$script_php = 'exercise_result.php';
}
if (!empty($error)) {
Display :: display_error_message($error, false);
} else {
if (!empty ($exercise_sound)) {
echo "<a href=\"../document/download.php?doc_url=%2Faudio%2F" . Security::remove_XSS($exercise_sound) . "\" target=\"_blank\">", "<img src=\"../img/sound.gif\" border=\"0\" align=\"absmiddle\" alt=", 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) {
$i++;
$objQuestionTmp = Question::read($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 != $i) {
continue;
} else {
if ($objQuestionTmp->selectType() == HOT_SPOT || $objQuestionTmp->selectType() == HOT_SPOT_DELINEATION) {
$number_of_hotspot_questions++;
}
break;
}
} else {
if ($objQuestionTmp->selectType() == HOT_SPOT || $objQuestionTmp->selectType() == HOT_SPOT_DELINEATION) {
$number_of_hotspot_questions++;
}
}
}
}
if ($number_of_hotspot_questions > 0) {
$onsubmit = "onsubmit=\"return validateFlashVar('" . $number_of_hotspot_questions . "', '" . get_lang('HotspotValidateError1') . "', '" . get_lang('HotspotValidateError2') . "');\"";
}
echo '<script>
$(function() {
// Block form submition on enter
$(".block_on_enter").keypress(function(event) {
return event.keyCode != 13;
});
$(".main_question").mouseover(function() {
//$(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");
});
$(".no_remind_highlight").hide();
// if the users validates the form using return key, prevent form action and simulates click on validation button
/*$("#exercise_form").submit(function(){
$(".question-validate-btn").first().trigger("click");
return false;
});*/
});
function previous_question(question_num) {
url = "exercise_submit.php?'.$params.'&num="+question_num;
window.location = url;
}
function previous_question_and_save(previous_question_id, question_id_to_save) {
url = "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) {
$.each(question_list, function(key, question_id) {
save_now(question_id, null, false);
});
var url = "";
if ('.$reminder.' == 1 ) {
url = "exercise_reminder.php?'.$params.'&num='.$current_question.'";
} else if ('.$reminder.' == 2 ) {
url = "exercise_submit.php?'.$params.'&num='.$current_question.'&remind_question_id='.$remind_question_id.'&reminder=2";
} else {
url = "exercise_submit.php?'.$params.'&num='.$current_question.'&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)).'");
window.location = url;
}
function save_now(question_id, url_extra) {
//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();
// Checking FCK
if (question_id) {
if (CKEDITOR.instances["choice["+question_id+"]"]) {
var ckContent = CKEDITOR.instances["choice["+question_id+"]"].getData();
my_choice = {};
my_choice["choice["+question_id+"]"] = ckContent;
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')).'");
$.ajax({
type:"post",
async: false,
url: "'.api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?'.api_get_cidreq().'&a=save_exercise_by_now",
data: "'.$params.'&type=simple&question_id="+question_id+"&"+my_choice+"&"+hotspot+"&"+remind_list,
success: function(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") {
$("#save_for_now_"+question_id).html("'.addslashes(Display::return_icon('error.png', get_lang('Error'), array(), ICON_SIZE_SMALL)).'");
} else if (return_value == "one_per_page") {
var url = "";
if ('.$reminder.' == 1 ) {
url = "exercise_reminder.php?'.$params.'&num='.$current_question.'";
} else if ('.$reminder.' == 2 ) {
url = "exercise_submit.php?'.$params.'&num='.$current_question.'&remind_question_id='.$remind_question_id.'&reminder=2";
} else {
url = "exercise_submit.php?'.$params.'&num='.$current_question.'&remind_question_id='.$remind_question_id.'";
}
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)).'");
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 false;
}
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 (my_question_id) {
if (CKEDITOR.instances["choice["+my_question_id+"]"]) {
var ckContent = CKEDITOR.instances["choice["+my_question_id+"]"].getData();
free_answers["free_choice["+my_question_id+"]"] = ckContent;
}
}
});
free_answers = $.param(free_answers);
$("#save_all_reponse").html("'.addslashes(Display::return_icon('loading1.gif')).'");
$.ajax({
type:"post",
async: false,
url: "'.api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?'.api_get_cidreq().'&a=save_exercise_by_now",
data: "'.$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 {
$("#save_all_reponse").html("'.addslashes(Display::return_icon('wrong.gif')).'");
}
}
});
return false;
}
function validate_all() {
save_now_all("validate");
return false;
}
</script>';
echo '<form id="exercise_form" method="post" action="'.api_get_self().'?'.api_get_cidreq().'&autocomplete=off&&exerciseId='.$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="'.$current_question.'" id="num_current_id" />
<input type="hidden" name="num_answer" value="'.$currentAnswer.'" id="num_current_answer_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 . '" />';
// Show list of questions
$i = 1;
$attempt_list = array();
if (isset($exe_id)) {
$attempt_list = Event::getAllExerciseEventByExeId($exe_id);
}
$remind_list = array();
if (isset($exercise_stat_info['questions_to_check']) && !empty($exercise_stat_info['questions_to_check'])) {
$remind_list = explode(',', $exercise_stat_info['questions_to_check']);
}
foreach ($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) {
$i++;
continue;
} else {
if ($objExercise->feedback_type != EXERCISE_FEEDBACK_TYPE_DIRECT) {
// if the user has already answered this question
if (isset($exerciseResult[$questionId])) {
// construction of the Question object
$objQuestionTmp = Question::read($questionId);
$questionName = $objQuestionTmp->selectTitle();
// destruction of the Question object
unset ($objQuestionTmp);
Display :: display_normal_message(get_lang('AlreadyAnswered'));
$i++;
break;
}
}
}
}
$user_choice = isset($attempt_list[$questionId]) ? $attempt_list[$questionId] : null;
$remind_highlight = '';
//Hides questions when reviewing a ALL_ON_ONE_PAGE exercise see #4542 no_remind_highlight class hide with jquery
if ($objExercise->type == ALL_ON_ONE_PAGE && isset($_GET['reminder']) && $_GET['reminder'] == 2) {
$remind_highlight = 'no_remind_highlight';
}
$exercise_actions = '';
$is_remind_on = false;
$attributes = array('id' =>'remind_list['.$questionId.']');
if (in_array($questionId, $remind_list)) {
$is_remind_on = true;
$attributes['checked'] = 1;
$remind_question = true;
$remind_highlight = ' remind_highlight ';
}
// Showing the question
echo '<div id="question_div_'.$questionId.'" class="main_question '.$remind_highlight.'" >';
// Shows the question and its answers
ExerciseLib::showQuestion($questionId, false, $origin, $i, true, false, $user_choice, false);
// Button save and continue
switch ($objExercise->type) {
case ONE_PER_PAGE:
$exercise_actions .= $objExercise->show_button($questionId, $current_question);
break;
case ALL_ON_ONE_PAGE :
$button = '<a href="javascript://" class="btn btn-info" onclick="save_now(\''.$questionId.'\'); ">'.get_lang('SaveForNow').'</a>';
$button .= '<span id="save_for_now_'.$questionId.'"></span>&nbsp;';
$exercise_actions .= Display::div($button, array('class'=>'exercise_save_now_button'));
break;
}
// Checkbox review answers
if ($objExercise->review_answers) {
$remind_question_div = Display::tag(
'label',
Display::input(
'checkbox',
'remind_list[' . $questionId . ']',
'',
$attributes
) . get_lang('ReviewQuestionLater'),
array(
'class' => 'checkbox',
'for' => 'remind_list[' . $questionId . ']'
)
);
$exercise_actions .= Display::div($remind_question_div, array('class'=>'exercise_save_now_button'));
}
echo Display::div($exercise_actions, array('class'=>'form-actions'));
echo '</div>';
$i++;
// for sequential exercises
if ($objExercise->type == ONE_PER_PAGE) {
// quits the loop
break;
}
}
// end foreach()
if ($objExercise->type == ALL_ON_ONE_PAGE) {
$exercise_actions = $objExercise->show_button($questionId, $current_question);
echo Display::div($exercise_actions, array('class'=>'exercise_actions'));
}
echo '</form>';
echo '</div>';
}
if ($origin != 'learnpath') {
// So we are not in learnpath tool
echo '</div>'; //End glossary div
Display :: display_footer();
} else {
echo '</body></html>';
}