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

768 lines
28 KiB

<?php
/* For licensing terms, see /license.txt */
use ChamiloSession as Session;
/**
* Responses to AJAX calls.
*/
require_once __DIR__.'/../global.inc.php';
$debug = false;
api_protect_course_script(true);
$action = $_REQUEST['a'];
if ($debug) {
error_log('-----------------------------------------------------');
error_log("$action ajax call");
error_log('-----------------------------------------------------');
}
$course_id = api_get_course_int_id();
$session_id = isset($_REQUEST['session_id']) ? (int) $_REQUEST['session_id'] : api_get_session_id();
$course_code = isset($_REQUEST['cidReq']) ? $_REQUEST['cidReq'] : api_get_course_id();
switch ($action) {
case 'update_duration':
$exeId = isset($_REQUEST['exe_id']) ? $_REQUEST['exe_id'] : 0;
if (Session::read('login_as')) {
if ($debug) {
error_log("User is 'login as' don't update duration time.");
}
exit;
}
if (empty($exeId)) {
if ($debug) {
error_log('Exe id not provided.');
}
exit;
}
/** @var Exercise $exerciseInSession */
$exerciseInSession = Session::read('objExercise');
if (empty($exerciseInSession)) {
if ($debug) {
error_log('Exercise obj not provided.');
}
exit;
}
// If exercise was updated x seconds before, then don't updated duration.
$onlyUpdateValue = 10;
$em = Database::getManager();
/** @var \Chamilo\CoreBundle\Entity\TrackEExercises $attempt */
$attempt = $em->getRepository('ChamiloCoreBundle:TrackEExercises')->find($exeId);
if (empty($attempt)) {
if ($debug) {
error_log("Attempt #$exeId doesn't exists.");
}
exit;
}
$nowObject = api_get_utc_datetime(null, false, true);
$now = $nowObject->getTimestamp();
$exerciseId = $attempt->getExeExoId();
$userId = $attempt->getExeUserId();
$currentUserId = api_get_user_id();
if ($userId != $currentUserId) {
if ($debug) {
error_log("User $currentUserId trying to change time for user $userId");
}
exit;
}
if ($exerciseInSession->id != $exerciseId) {
if ($debug) {
error_log("Cannot update, exercise are different.");
}
exit;
}
if ($attempt->getStatus() != 'incomplete') {
if ($debug) {
error_log('Cannot update exercise is already completed.');
}
exit;
}
// Check if we are dealing with the same exercise.
$timeWithOutUpdate = $now - $attempt->getExeDate()->getTimestamp();
if ($timeWithOutUpdate > $onlyUpdateValue) {
$key = ExerciseLib::get_time_control_key(
$exerciseId,
$attempt->getOrigLpId(),
$attempt->getOrigLpItemId()
);
$durationFromObject = $attempt->getExeDuration();
$previousTime = Session::read('duration_time_previous');
if (isset($previousTime[$key]) &&
!empty($previousTime[$key])
) {
$sessionTime = $previousTime[$key];
$duration = $sessionTime = $now - $sessionTime;
if (!empty($durationFromObject)) {
$duration += $durationFromObject;
}
$duration = (int) $duration;
if (!empty($duration)) {
if ($debug) {
error_log("Exe_id: #".$exeId);
error_log("Key: $key");
error_log("Exercise to update: #$exerciseId of user: #$userId");
error_log("Duration time found in DB before update: $durationFromObject");
error_log("Current spent time $sessionTime before an update");
error_log("Accumulate duration to save in DB: $duration");
error_log("End date (UTC) before update: ".$attempt->getExeDate()->format('Y-m-d H:i:s'));
error_log("End date (UTC) to be save in DB: ".$nowObject->format('Y-m-d H:i:s'));
}
$attempt
->setExeDuration($duration)
->setExeDate($nowObject);
$em->merge($attempt);
$em->flush();
}
} else {
if ($debug) {
error_log("Nothing to update, 'duration_time_previous' session not set");
error_log("Key: $key");
}
}
} else {
if ($debug) {
error_log("Can't update, time was already updated $timeWithOutUpdate seconds ago");
}
}
break;
case 'get_live_stats':
if (!api_is_allowed_to_edit(null, true)) {
break;
}
// 1. Setting variables needed by jqgrid
$action = $_GET['a'];
$exercise_id = (int) $_GET['exercise_id'];
$page = (int) $_REQUEST['page']; //page
$limit = (int) $_REQUEST['rows']; //quantity of rows
$sidx = $_REQUEST['sidx']; //index to filter
$sord = $_REQUEST['sord']; //asc or desc
if (!in_array($sord, ['asc', 'desc'])) {
$sord = 'desc';
}
// get index row - i.e. user click to sort $sord = $_GET['sord'];
// get the direction
if (!$sidx) {
$sidx = 1;
}
$track_exercise = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$user_table = Database::get_main_table(TABLE_MAIN_USER);
$track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$minutes = (int) $_REQUEST['minutes'];
$now = time() - 60 * $minutes;
$now = api_get_utc_datetime($now);
$where_condition = " orig_lp_id = 0 AND exe_exo_id = $exercise_id AND start_date > '$now' ";
$sql = "SELECT COUNT(DISTINCT exe_id)
FROM $track_exercise
WHERE $where_condition ";
$result = Database::query($sql);
$count = Database::fetch_row($result);
$count = $count[0];
//3. Calculating first, end, etc
$total_pages = 0;
if ($count > 0) {
if (!empty($limit)) {
$total_pages = ceil($count / $limit);
}
}
if ($page > $total_pages) {
$page = $total_pages;
}
$start = $limit * $page - $limit;
if ($start < 0) {
$start = 0;
}
$sql = "SELECT
exe_id,
exe_user_id,
firstname,
lastname,
aa.status,
start_date,
score,
max_score,
score/max_score as score,
exe_duration,
questions_to_check,
orig_lp_id
FROM $user_table u
INNER JOIN (
SELECT
t.exe_id,
t.exe_user_id,
status,
start_date,
score,
max_score,
score/max_score as score,
exe_duration,
questions_to_check,
orig_lp_id
FROM $track_exercise t
LEFT JOIN $track_attempt a
ON (a.exe_id = t.exe_id AND t.exe_user_id = a.user_id)
WHERE t.status = 'incomplete' AND $where_condition
GROUP BY exe_user_id
) as aa
ON aa.exe_user_id = user_id
ORDER BY $sidx $sord
LIMIT $start, $limit";
$result = Database::query($sql);
$results = [];
while ($row = Database::fetch_array($result, 'ASSOC')) {
$results[] = $row;
}
$oExe = new Exercise();
$oExe->read($exercise_id);
$response = new stdClass();
$response->page = $page;
$response->total = $total_pages;
$response->records = $count;
$i = 0;
if (!empty($results)) {
foreach ($results as $row) {
$sql = "SELECT SUM(count_question_id) as count_question_id
FROM (
SELECT 1 as count_question_id
FROM $track_attempt a
WHERE
user_id = {$row['exe_user_id']} AND
exe_id = {$row['exe_id']}
GROUP by question_id
) as count_table";
$result_count = Database::query($sql);
$count_questions = Database::fetch_array(
$result_count,
'ASSOC'
);
$count_questions = $count_questions['count_question_id'];
$row['count_questions'] = $count_questions;
$response->rows[$i]['id'] = $row['exe_id'];
if (!empty($oExe->expired_time)) {
$remaining = strtotime($row['start_date']) +
($oExe->expired_time * 60) -
strtotime(api_get_utc_datetime(time()));
$h = floor($remaining / 3600);
$m = floor(($remaining - ($h * 3600)) / 60);
$s = ($remaining - ($h * 3600) - ($m * 60));
$timeInfo = api_format_date(
$row['start_date'],
DATE_TIME_FORMAT_LONG
).' ['.($h > 0 ? $h.':' : '').sprintf("%02d", $m).':'.sprintf("%02d", $s).']';
} else {
$timeInfo = api_format_date(
$row['start_date'],
DATE_TIME_FORMAT_LONG
);
}
$array = [
$row['firstname'],
$row['lastname'],
$timeInfo,
$row['count_questions'],
round($row['score'] * 100).'%',
];
$response->rows[$i]['cell'] = $array;
$i++;
}
}
echo json_encode($response);
break;
case 'update_exercise_list_order':
if (api_is_allowed_to_edit(null, true)) {
$new_list = $_REQUEST['exercise_list'];
$table = Database::get_course_table(TABLE_QUIZ_ORDER);
$counter = 1;
//Drop all
$sql = "DELETE FROM $table WHERE session_id = $session_id AND c_id = $course_id";
Database::query($sql);
// Insert all
foreach ($new_list as $new_order_id) {
Database::insert(
$table,
[
'exercise_order' => $counter,
'session_id' => $session_id,
'exercise_id' => (int) $new_order_id,
'c_id' => $course_id,
]
);
$counter++;
}
echo Display::return_message(get_lang('Saved'), 'confirmation');
}
break;
case 'update_question_order':
$course_info = api_get_course_info_by_id($course_id);
$course_id = $course_info['real_id'];
$exercise_id = isset($_REQUEST['exercise_id']) ? (int) $_REQUEST['exercise_id'] : null;
if (empty($exercise_id)) {
return Display::return_message(get_lang('Error'), 'error');
}
if (api_is_allowed_to_edit(null, true)) {
$new_question_list = $_POST['question_id_list'];
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
$counter = 1;
foreach ($new_question_list as $new_order_id) {
Database::update(
$TBL_QUESTIONS,
['question_order' => $counter],
[
'question_id = ? AND c_id = ? AND exercice_id = ? ' => [
(int) $new_order_id,
$course_id,
$exercise_id,
],
]
)
;
$counter++;
}
echo Display::return_message(get_lang('Saved'), 'confirmation');
}
break;
case 'add_question_to_reminder':
/** @var Exercise $objExercise */
$objExercise = Session::read('objExercise');
$exeId = isset($_REQUEST['exe_id']) ? $_REQUEST['exe_id'] : 0;
if (empty($objExercise) || empty($exeId)) {
echo 0;
exit;
} else {
$option = isset($_GET['option']) ? $_GET['option'] : '';
switch ($option) {
case 'add_all':
$questionListInSession = Session::read('questionList');
$objExercise->addAllQuestionToRemind(
$exeId,
$questionListInSession
);
break;
case 'remove_all':
$objExercise->removeAllQuestionToRemind(
$exeId
);
break;
default:
$objExercise->editQuestionToRemind(
$exeId,
$_REQUEST['question_id'],
$_REQUEST['action']
);
break;
}
}
break;
case 'save_exercise_by_now':
$course_info = api_get_course_info_by_id($course_id);
$course_id = $course_info['real_id'];
// Use have permissions?
if (api_is_allowed_to_session_edit()) {
// "all" or "simple" strings means that there's one or all questions exercise type
$type = isset($_REQUEST['type']) ? $_REQUEST['type'] : null;
// Questions choices.
$choice = isset($_REQUEST['choice']) ? $_REQUEST['choice'] : null;
// certainty degree choice
$choiceDegreeCertainty = isset($_REQUEST['choiceDegreeCertainty'])
? $_REQUEST['choiceDegreeCertainty'] : null;
// Hot spot coordinates from all questions.
$hot_spot_coordinates = isset($_REQUEST['hotspot']) ? $_REQUEST['hotspot'] : null;
// There is a reminder?
$remind_list = isset($_REQUEST['remind_list']) && !empty($_REQUEST['remind_list'])
? array_keys($_REQUEST['remind_list']) : null;
// Needed in manage_answer.
$learnpath_id = isset($_REQUEST['learnpath_id']) ? (int) $_REQUEST['learnpath_id'] : 0;
$learnpath_item_id = isset($_REQUEST['learnpath_item_id']) ? (int) $_REQUEST['learnpath_item_id'] : 0;
// Attempt id.
$exeId = isset($_REQUEST['exe_id']) ? (int) $_REQUEST['exe_id'] : 0;
if ($debug) {
error_log("exe_id = $exeId");
error_log("type = $type");
error_log("choice = ".print_r($choice, 1)." ");
error_log("hot_spot_coordinates = ".print_r($hot_spot_coordinates, 1));
error_log("remind_list = ".print_r($remind_list, 1));
error_log("--------------------------------");
}
// Exercise information.
/** @var Exercise $objExercise */
$objExercise = Session::read('objExercise');
// Question info.
$question_id = isset($_REQUEST['question_id']) ? (int) $_REQUEST['question_id'] : null;
$question_list = Session::read('questionList');
// If exercise or question is not set then exit.
if (empty($question_list) || empty($objExercise)) {
echo 'error';
if ($debug) {
if (empty($question_list)) {
error_log("question_list is empty");
}
if (empty($objExercise)) {
error_log("objExercise is empty");
}
}
exit;
}
// Getting information of the current exercise.
$exercise_stat_info = $objExercise->get_stat_track_exercise_info_by_exe_id($exeId);
$exercise_id = $exercise_stat_info['exe_exo_id'];
$attemptList = [];
// First time here we create an attempt (getting the exe_id).
if (!empty($exercise_stat_info)) {
// We know the user we get the exe_id.
$exeId = $exercise_stat_info['exe_id'];
$total_score = $exercise_stat_info['score'];
// Getting the list of attempts
$attemptList = Event::getAllExerciseEventByExeId($exeId);
}
// Updating Reminder algorithm.
if ($objExercise->type == ONE_PER_PAGE) {
$bd_reminder_list = explode(',', $exercise_stat_info['questions_to_check']);
if (empty($remind_list)) {
$remind_list = $bd_reminder_list;
$new_list = [];
foreach ($bd_reminder_list as $item) {
if ($item != $question_id) {
$new_list[] = $item;
}
}
$remind_list = $new_list;
} else {
if (isset($remind_list[0])) {
if (!in_array($remind_list[0], $bd_reminder_list)) {
array_push($bd_reminder_list, $remind_list[0]);
}
$remind_list = $bd_reminder_list;
}
}
}
// No exe id? Can't save answer.
if (empty($exeId)) {
// Fires an error.
echo 'error';
if ($debug) {
error_log('exe_id is empty');
}
exit;
}
Session::write('exe_id', $exeId);
// Getting the total weight if the request is simple
$total_weight = 0;
if ($type == 'simple') {
foreach ($question_list as $my_question_id) {
$objQuestionTmp = Question::read($my_question_id, $course_id);
$total_weight += $objQuestionTmp->selectWeighting();
}
}
unset($objQuestionTmp);
// Looping the question list
foreach ($question_list as $my_question_id) {
if ($debug) {
error_log("Saving question_id = $my_question_id ");
}
if ($type == 'simple' && $question_id != $my_question_id) {
continue;
}
$my_choice = isset($choice[$my_question_id]) ? $choice[$my_question_id] : null;
if ($debug) {
error_log("my_choice = ".print_r($my_choice, 1)."");
}
// Creates a temporary Question object
$objQuestionTmp = Question::read($my_question_id, $course_id);
$myChoiceDegreeCertainty = null;
if ($objQuestionTmp->type === MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
if (isset($choiceDegreeCertainty[$my_question_id])) {
$myChoiceDegreeCertainty = $choiceDegreeCertainty[$my_question_id];
}
}
// Getting free choice data.
if (in_array($objQuestionTmp->type, [FREE_ANSWER, ORAL_EXPRESSION]) && $type == 'all') {
$my_choice = isset($_REQUEST['free_choice'][$my_question_id]) && !empty($_REQUEST['free_choice'][$my_question_id])
? $_REQUEST['free_choice'][$my_question_id]
: null;
}
if ($type == 'all') {
$total_weight += $objQuestionTmp->selectWeighting();
}
// This variable came from exercise_submit_modal.php.
$hotspot_delineation_result = null;
if (isset($_SESSION['hotspot_delineation_result']) &&
isset($_SESSION['hotspot_delineation_result'][$objExercise->selectId()])
) {
$hotspot_delineation_result = $_SESSION['hotspot_delineation_result'][$objExercise->selectId()][$my_question_id];
}
if ($type == 'simple') {
// Getting old attempt in order to decrees the total score.
$old_result = $objExercise->manage_answer(
$exeId,
$my_question_id,
null,
'exercise_show',
[],
false,
true,
false,
$objExercise->selectPropagateNeg(),
[]
);
// Removing old score.
$total_score = $total_score - $old_result['score'];
}
// Deleting old attempt
if (isset($attemptList) && !empty($attemptList[$my_question_id])) {
if ($debug) {
error_log("delete_attempt exe_id : $exeId, my_question_id: $my_question_id");
}
Event::delete_attempt(
$exeId,
api_get_user_id(),
$course_id,
$session_id,
$my_question_id
);
if ($objQuestionTmp->type === HOT_SPOT) {
Event::delete_attempt_hotspot(
$exeId,
api_get_user_id(),
$course_id,
$session_id,
$my_question_id
);
}
if (isset($attemptList[$my_question_id]) &&
isset($attemptList[$my_question_id]['marks'])
) {
$total_score -= $attemptList[$my_question_id]['marks'];
}
}
// We're inside *one* question. Go through each possible answer for this question
if ($objQuestionTmp->type === MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
$myChoiceTmp = [];
$myChoiceTmp['choice'] = $my_choice;
$myChoiceTmp['choiceDegreeCertainty'] = $myChoiceDegreeCertainty;
$result = $objExercise->manage_answer(
$exeId,
$my_question_id,
$myChoiceTmp,
'exercise_result',
$hot_spot_coordinates,
true,
false,
false,
$objExercise->selectPropagateNeg(),
$hotspot_delineation_result
);
} else {
$result = $objExercise->manage_answer(
$exeId,
$my_question_id,
$my_choice,
'exercise_result',
$hot_spot_coordinates,
true,
false,
false,
$objExercise->selectPropagateNeg(),
$hotspot_delineation_result
);
}
// Adding the new score.
$total_score += $result['score'];
if ($debug) {
error_log("total_score: $total_score ");
error_log("total_weight: $total_weight ");
}
$duration = 0;
$now = time();
if ($type == 'all') {
$exercise_stat_info = $objExercise->get_stat_track_exercise_info_by_exe_id($exeId);
}
$key = ExerciseLib::get_time_control_key(
$exercise_id,
$exercise_stat_info['orig_lp_id'],
$exercise_stat_info['orig_lp_item_id']
);
$durationTime = Session::read('duration_time');
if (isset($durationTime[$key]) && !empty($durationTime[$key])) {
if ($debug) {
error_log('Session time :'.$durationTime[$key]);
}
$duration = $now - $durationTime[$key];
if (!empty($exercise_stat_info['exe_duration'])) {
$duration += $exercise_stat_info['exe_duration'];
}
$duration = (int) $duration;
} else {
if (!empty($exercise_stat_info['exe_duration'])) {
$duration = $exercise_stat_info['exe_duration'];
}
}
if ($debug) {
error_log('duration to save in DB:'.$duration);
}
Session::write('duration_time', [$key => $now]);
Event::updateEventExercise(
$exeId,
$objExercise->selectId(),
$total_score,
$total_weight,
$session_id,
$exercise_stat_info['orig_lp_id'],
$exercise_stat_info['orig_lp_item_id'],
$exercise_stat_info['orig_lp_item_view_id'],
$duration,
$question_list,
'incomplete',
$remind_list
);
// Destruction of the Question object
unset($objQuestionTmp);
if ($debug) {
error_log("---------- end question ------------");
}
}
}
if ($type == 'all') {
echo 'ok';
exit;
}
if ($objExercise->type == ONE_PER_PAGE) {
if ($debug) {
error_log("result: one_per_page");
error_log(" ------ end ajax call ------- ");
}
echo 'one_per_page';
exit;
}
if ($debug) {
error_log("result: ok");
error_log(" ------ end ajax call ------- ");
}
echo 'ok';
break;
case 'show_question':
$isAllowedToEdit = api_is_allowed_to_edit(null, true, false, false);
if (!$isAllowedToEdit) {
api_not_allowed(true);
exit;
}
$questionId = isset($_GET['question']) ? (int) $_GET['question'] : 0;
$exerciseId = isset($_REQUEST['exercise']) ? (int) $_REQUEST['exercise'] : 0;
if (!$questionId || !$exerciseId) {
break;
}
$objExercise = new Exercise();
$objExercise->read($exerciseId);
$objQuestion = Question::read($questionId);
$id = '';
if (api_get_configuration_value('show_question_id')) {
$id = '<h4>#'.$objQuestion->course['code'].'-'.$objQuestion->iid.'</h4>';
}
echo $id;
echo '<p class="lead">'.$objQuestion->get_question_type_name().'</p>';
if ($objQuestion->type === FILL_IN_BLANKS) {
echo '<script>
$(function() {
$(".selectpicker").selectpicker({});
});
</script>';
}
// Allows render MathJax elements in a ajax call
if (api_get_setting('include_asciimathml_script') === 'true') {
echo '<script> MathJax.Hub.Queue(["Typeset",MathJax.Hub]);</script>';
}
ExerciseLib::showQuestion(
$objExercise,
$questionId,
false,
null,
null,
false,
true,
false,
true,
true
);
break;
default:
echo '';
}
exit;