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

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81 KiB

<?php
/* See license terms in /license.txt */
use Chamilo\CoreBundle\Component\Utils\ChamiloApi;
use Chamilo\CoreBundle\Entity\TrackEAttemptRecording;
use ChamiloSession as Session;
/**
* Class Event
* Functions of this library are used to record informations when some kind
* of event occur. Each event has his own types of informations then each event
* use its own function.
*/
class Event
{
/**
* @param int $userId
*
* @return bool
* @desc Record information for login event when an user identifies himself with username & password
* @author Sebastien Piraux <piraux_seb@hotmail.com> old code
* @author Julio Montoya
*
*/
public static function eventLogin($userId)
{
$userInfo = api_get_user_info($userId);
$userId = (int) $userId;
if (empty($userInfo)) {
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$reallyNow = api_get_utc_datetime();
$userIp = Database::escape_string(api_get_real_ip());
$sql = "INSERT INTO $table (login_user_id, user_ip, login_date, logout_date) VALUES
($userId,
'$userIp',
'$reallyNow',
'$reallyNow'
)";
Database::query($sql);
$status = 'student';
if (SESSIONADMIN == $userInfo['status']) {
$status = 'sessionadmin';
}
if (COURSEMANAGER == $userInfo['status']) {
$status = 'teacher';
}
if (DRH == $userInfo['status']) {
$status = 'DRH';
}
// Auto subscribe
$autoSubscribe = api_get_setting($status.'_autosubscribe');
if ($autoSubscribe) {
$autoSubscribe = explode('|', $autoSubscribe);
foreach ($autoSubscribe as $code) {
if (CourseManager::course_exists($code)) {
CourseManager::subscribeUser($userId, $code);
}
}
}
return true;
}
/**
* @param int $sessionId
*
* @return bool
*/
public static function isSessionLogNeedToBeSave($sessionId)
{
if (!empty($sessionId)) {
$visibility = api_get_session_visibility($sessionId);
if (!empty($visibility) && $visibility != SESSION_AVAILABLE) {
$extraFieldValue = new ExtraFieldValue('session');
$value = $extraFieldValue->get_values_by_handler_and_field_variable(
$sessionId,
'disable_log_after_session_ends'
);
if (!empty($value) && isset($value['value']) && (int) $value['value'] == 1) {
return false;
}
}
}
return true;
}
/**
* @author Sebastien Piraux <piraux_seb@hotmail.com>
* @desc Record information for access event for courses
*
* @return bool
*/
public static function accessCourse()
{
if (Session::read('login_as')) {
return false;
}
$TABLETRACK_ACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
// For "what's new" notification
$TABLETRACK_LASTACCESS = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
$sessionId = api_get_session_id();
$now = api_get_utc_datetime();
$courseId = api_get_course_int_id();
$userId = api_get_user_id();
$ip = Database::escape_string(api_get_real_ip());
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
if ($userId) {
$userId = $userId;
} else {
$userId = '0'; // no one
}
$sql = "INSERT INTO $TABLETRACK_ACCESS (user_ip, access_user_id, c_id, access_date, access_session_id)
VALUES ('$ip', $userId, $courseId, '$now', $sessionId)";
Database::query($sql);
// added for "what's new" notification
$sql = "UPDATE $TABLETRACK_LASTACCESS SET access_date = '$now'
WHERE
access_user_id = $userId AND
c_id = $courseId AND
access_tool IS NULL AND
access_session_id = $sessionId";
$result = Database::query($sql);
if (0 == Database::affected_rows($result)) {
$sql = "INSERT INTO $TABLETRACK_LASTACCESS (access_user_id, c_id, access_date, access_session_id)
VALUES ($userId, $courseId, '$now', $sessionId)";
Database::query($sql);
}
return true;
}
/**
* @param string $tool name of the tool
*
* @author Sebastien Piraux <piraux_seb@hotmail.com>
* @desc Record information for access event for tools
*
* $tool can take this values :
* Links, Calendar, Document, Announcements,
* Group, Video, Works, Users, Exercises, Course Desc
* ...
* Values can be added if new modules are created (15char max)
* I encourage to use $nameTool as $tool when calling this function
*
* Functionality for "what's new" notification is added by Toon Van Hoecke
*
* @return bool
*/
public static function event_access_tool($tool)
{
if (Session::read('login_as')) {
return false;
}
$tool = Database::escape_string($tool);
if (empty($tool)) {
return false;
}
$courseInfo = api_get_course_info();
$sessionId = api_get_session_id();
$reallyNow = api_get_utc_datetime();
$userId = api_get_user_id();
if (empty($courseInfo)) {
return false;
}
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
$courseId = $courseInfo['real_id'];
$tableAccess = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
//for "what's new" notification
$tableLastAccess = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
// record information
// only if user comes from the course $_cid
//if( eregi($_configuration['root_web'].$_cid,$_SERVER['HTTP_REFERER'] ) )
//$pos = strpos($_SERVER['HTTP_REFERER'],$_configuration['root_web'].$_cid);
$coursePath = isset($courseInfo['path']) ? $courseInfo['path'] : null;
$pos = isset($_SERVER['HTTP_REFERER']) ? strpos(
strtolower($_SERVER['HTTP_REFERER']),
strtolower(api_get_path(WEB_COURSE_PATH).$coursePath)
) : false;
// added for "what's new" notification
$pos2 = isset($_SERVER['HTTP_REFERER']) ? strpos(
strtolower($_SERVER['HTTP_REFERER']),
strtolower(api_get_path(WEB_PATH)."index")
) : false;
// end "what's new" notification
if (false !== $pos || false !== $pos2) {
$params = [
'access_user_id' => $userId,
'c_id' => $courseId,
'access_tool' => $tool,
'access_date' => $reallyNow,
'access_session_id' => $sessionId,
'user_ip' => Database::escape_string(api_get_real_ip()),
];
Database::insert($tableAccess, $params);
}
// "what's new" notification
$sql = "UPDATE $tableLastAccess
SET access_date = '$reallyNow'
WHERE
access_user_id = $userId AND
c_id = $courseId AND
access_tool = '$tool' AND
access_session_id = $sessionId";
$result = Database::query($sql);
if (0 == Database::affected_rows($result)) {
$params = [
'access_user_id' => $userId,
'c_id' => $courseId,
'access_tool' => $tool,
'access_date' => $reallyNow,
'access_session_id' => $sessionId,
];
Database::insert($tableLastAccess, $params);
}
return true;
}
/**
* Record information for download event (when an user click to d/l a
* document) it will be used in a redirection page.
*
* @param string $documentUrl
*
* @return int
*
* @author Sebastien Piraux <piraux_seb@hotmail.com>
* @author Evie Embrechts (bug fixed: The user id is put in single quotes)
*/
public static function event_download($documentUrl)
{
if (Session::read('login_as')) {
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DOWNLOADS);
$documentUrl = Database::escape_string($documentUrl);
$reallyNow = api_get_utc_datetime();
$userId = api_get_user_id();
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
return Database::insert(
$table,
[
'down_user_id' => $userId,
'c_id' => $courseId,
'down_doc_path' => $documentUrl,
'down_date' => $reallyNow,
'down_session_id' => $sessionId,
]
);
}
/**
* @param int $documentId of document (id in mainDb.document table)
*
* @author Sebastien Piraux <piraux_seb@hotmail.com>
* @desc Record information for upload event
* used in the works tool to record informations when
* an user upload 1 work
*
* @return int
*/
public static function event_upload($documentId)
{
if (Session::read('login_as')) {
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_UPLOADS);
$courseId = api_get_course_int_id();
$reallyNow = api_get_utc_datetime();
$userId = api_get_user_id();
$documentId = (int) $documentId;
$sessionId = api_get_session_id();
$sql = "INSERT INTO $table
( upload_user_id,
c_id,
upload_work_id,
upload_date,
upload_session_id
)
VALUES (
$userId,
$courseId,
$documentId,
'$reallyNow',
$sessionId
)";
Database::query($sql);
return 1;
}
/**
* Record information for link event (when an user click on an added link)
* it will be used in a redirection page.
*
* @param int $linkId (id in c_link table)
*
* @return int
*
* @author Sebastien Piraux <piraux_seb@hotmail.com>
*/
public static function event_link($linkId)
{
if (Session::read('login_as')) {
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LINKS);
$reallyNow = api_get_utc_datetime();
$userId = api_get_user_id();
$courseId = api_get_course_int_id();
$linkId = (int) $linkId;
$sessionId = api_get_session_id();
$sql = "INSERT INTO ".$table."
( links_user_id,
c_id,
links_link_id,
links_date,
links_session_id
) VALUES (
$userId,
$courseId,
$linkId,
'$reallyNow',
$sessionId
)";
Database::query($sql);
return 1;
}
/**
* Update the TRACK_E_EXERCICES exercises.
* Record result of user when an exercise was done.
*
* @param int $exeId
* @param int $exoId
* @param mixed $score
* @param int $weighting
* @param int $sessionId
* @param int $learnpathId
* @param int $learnpathItemId
* @param int $learnpathItemViewId
* @param int $duration
* @param array $questionsList
* @param string $status
* @param array $remindList
* @param null $endDate
*
* @return bool
*
* @author Sebastien Piraux <piraux_seb@hotmail.com>
* @author Julio Montoya Armas <gugli100@gmail.com> Reworked 2010
*/
public static function updateEventExercise(
$exeId,
$exoId,
$score,
$weighting,
$sessionId,
$learnpathId = 0,
$learnpathItemId = 0,
$learnpathItemViewId = 0,
$duration = 0,
$questionsList = [],
$status = '',
$remindList = [],
$endDate = null
) {
if (empty($exeId)) {
return false;
}
if (!isset($status) || empty($status)) {
$status = '';
} else {
$status = Database::escape_string($status);
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
if (!empty($questionsList)) {
$questionsList = array_map('intval', $questionsList);
}
if (!empty($remindList)) {
$remindList = array_map('intval', $remindList);
$remindList = array_filter($remindList);
$remindList = implode(",", $remindList);
} else {
$remindList = '';
}
if (empty($endDate)) {
$endDate = api_get_utc_datetime();
}
$exoId = (int) $exoId;
$sessionId = (int) $sessionId;
$learnpathId = (int) $learnpathId;
$learnpathItemId = (int) $learnpathItemId;
$learnpathItemViewId = (int) $learnpathItemViewId;
$duration = (int) $duration;
$exeId = (int) $exeId;
$score = Database::escape_string($score);
$weighting = Database::escape_string($weighting);
$questions = implode(',', $questionsList);
$userIp = Database::escape_string(api_get_real_ip());
$sql = "UPDATE $table SET
exe_exo_id = $exoId,
score = '$score',
max_score = '$weighting',
session_id = $sessionId,
orig_lp_id = $learnpathId,
orig_lp_item_id = $learnpathItemId,
orig_lp_item_view_id = $learnpathItemViewId,
exe_duration = $duration,
exe_date = '$endDate',
status = '$status',
questions_to_check = '$remindList',
data_tracking = '$questions',
user_ip = '$userIp'
WHERE exe_id = $exeId";
Database::query($sql);
//Deleting control time session track
//ExerciseLib::exercise_time_control_delete($exo_id);
return true;
}
/**
* Record an event for this attempt at answering an exercise.
*
* @param float $score Score achieved
* @param string $answer Answer given
* @param int $question_id
* @param int $exe_id Exercise attempt ID a.k.a exe_id (from track_e_exercise)
* @param int $position
* @param int $exercise_id From c_quiz
* @param bool $updateResults
* @param int $duration Time spent in seconds
* @param string $fileName Filename (for audio answers - using nanogong)
* @param int $user_id The user who's going to get this score.
* @param int $course_id Default value of null means "get from context".
* @param int $session_id Default value of null means "get from context".
* @param int $learnpath_id (from c_lp table). Default value of null means "get from context".
* @param int $learnpath_item_id (from the c_lp_item table). Default value of null means "get from context".
*
* @return bool Result of the insert query
*/
public static function saveQuestionAttempt(
$score,
$answer,
$question_id,
$exe_id,
$position,
$exercise_id = 0,
$updateResults = false,
$questionDuration = 0,
$fileName = null,
$user_id = null,
$course_id = null,
$session_id = null,
$learnpath_id = null,
$learnpath_item_id = null
) {
global $debug;
$questionDuration = (int) $questionDuration;
$question_id = (int) $question_id;
$exe_id = (int) $exe_id;
$position = (int) $position;
$course_id = (int) $course_id;
$now = api_get_utc_datetime();
$recording = api_get_configuration_value('quiz_answer_extra_recording');
// check user_id or get from context
if (empty($user_id)) {
$user_id = api_get_user_id();
// anonymous
if (empty($user_id)) {
$user_id = api_get_anonymous_id();
}
}
// check course_id or get from context
if (empty($course_id)) {
$course_id = api_get_course_int_id();
}
// check session_id or get from context
$session_id = (int) $session_id;
if (empty($session_id)) {
$session_id = api_get_session_id();
}
// check learnpath_id or get from context
if (empty($learnpath_id)) {
global $learnpath_id;
}
// check learnpath_item_id or get from context
if (empty($learnpath_item_id)) {
global $learnpath_item_id;
}
$TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
if ($debug) {
error_log('----- entering saveQuestionAttempt() function ------');
error_log("answer: $answer");
error_log("score: $score");
error_log("question_id : $question_id");
error_log("position: $position");
}
//Validation in case of fraud with active control time
if (!ExerciseLib::exercise_time_control_is_valid($exercise_id, $learnpath_id, $learnpath_item_id)) {
if ($debug) {
error_log("exercise_time_control_is_valid is false");
}
$score = 0;
$answer = 0;
}
if (empty($question_id) || empty($exe_id) || empty($user_id)) {
return false;
}
if (null === $answer) {
$answer = '';
}
if (null === $score) {
$score = 0;
}
$attempt = [
'user_id' => $user_id,
'question_id' => $question_id,
'answer' => $answer,
'marks' => $score,
'c_id' => $course_id,
'session_id' => $session_id,
'position' => $position,
'tms' => $now,
'filename' => !empty($fileName) ? basename($fileName) : $fileName,
'teacher_comment' => '',
'seconds_spent' => $questionDuration,
];
// Check if attempt exists.
$sql = "SELECT exe_id FROM $TBL_TRACK_ATTEMPT
WHERE
c_id = $course_id AND
session_id = $session_id AND
exe_id = $exe_id AND
user_id = $user_id AND
question_id = $question_id AND
position = $position";
$result = Database::query($sql);
$attemptData = [];
if (Database::num_rows($result)) {
$attemptData = Database::fetch_array($result, 'ASSOC');
if ($updateResults == false) {
//The attempt already exist do not update use update_event_exercise() instead
return false;
}
} else {
$attempt['exe_id'] = $exe_id;
}
if ($debug) {
error_log("updateResults : $updateResults");
error_log('Saving question attempt:');
error_log($sql);
}
$recording_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
$em = Database::getManager();
if (false == $updateResults) {
$attempt_id = Database::insert($TBL_TRACK_ATTEMPT, $attempt);
if ($attempt_id) {
$recording = new TrackEAttemptRecording();
$recording
->setExeId($attempt_id)
->setQuestionId($question_id)
->setAnswer($answer)
->setMarks($score)
->setAuthor('')
->setSessionId($session_id)
;
$em->persist($recording);
$em->flush();
}
} else {
if (api_get_configuration_value('allow_time_per_question')) {
$attempt['seconds_spent'] = $questionDuration + (int) $attemptData['seconds_spent'];
}
Database::update(
$TBL_TRACK_ATTEMPT,
$attempt,
[
'exe_id = ? AND question_id = ? AND user_id = ? ' => [
$exe_id,
$question_id,
$user_id,
],
]
);
if ($recording) {
$attempt_recording = [
'exe_id' => $exe_id,
'question_id' => $question_id,
'answer' => $answer,
'marks' => $score,
'insert_date' => $now,
'author' => '',
'session_id' => $session_id,
];
Database::update(
$recording_table,
$attempt_recording,
[
'exe_id = ? AND question_id = ? AND session_id = ? ' => [
$exe_id,
$question_id,
$session_id,
],
]
);
}
$attempt_id = $exe_id;
}
return $attempt_id;
}
/**
* Record an hotspot spot for this attempt at answering an hotspot question.
*
* @param int $exeId
* @param int $questionId Question ID
* @param int $answerId Answer ID
* @param int $correct
* @param string $coords Coordinates of this point (e.g. 123;324)
* @param bool $updateResults
* @param int $exerciseId
*
* @return bool Result of the insert query
*
* @uses \Course code and user_id from global scope $_cid and $_user
*/
public static function saveExerciseAttemptHotspot(
$exeId,
$questionId,
$answerId,
$correct,
$coords,
$updateResults = false,
$exerciseId = 0
) {
$debug = false;
global $safe_lp_id, $safe_lp_item_id;
if (false == $updateResults) {
// Validation in case of fraud with activated control time
if (!ExerciseLib::exercise_time_control_is_valid($exerciseId, $safe_lp_id, $safe_lp_item_id)) {
if ($debug) {
error_log('Attempt is fraud');
}
$correct = 0;
}
}
if (empty($exeId)) {
if ($debug) {
error_log('exe id is empty');
}
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
if ($updateResults) {
if ($debug) {
error_log("Insert hotspot results: exeId: $exeId correct: $correct");
}
$params = [
'hotspot_correct' => $correct,
'hotspot_coordinate' => $coords,
];
Database::update(
$table,
$params,
[
'hotspot_user_id = ? AND hotspot_exe_id = ? AND hotspot_question_id = ? AND hotspot_answer_id = ? ' => [
api_get_user_id(),
$exeId,
$questionId,
$answerId,
],
]
);
} else {
if ($debug) {
error_log("Insert hotspot results: exeId: $exeId correct: $correct");
}
return Database::insert(
$table,
[
'hotspot_user_id' => api_get_user_id(),
'c_id' => api_get_course_int_id(),
'hotspot_exe_id' => $exeId,
'hotspot_question_id' => $questionId,
'hotspot_answer_id' => $answerId,
'hotspot_correct' => $correct,
'hotspot_coordinate' => $coords,
]
);
}
}
/**
* Gets the last attempt of an exercise based in the exe_id.
*
* @param int $exeId
*
* @return mixed
*/
public static function getLastAttemptDateOfExercise($exeId)
{
$exeId = (int) $exeId;
$track_attempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$sql = "SELECT max(tms) as last_attempt_date
FROM $track_attempts
WHERE exe_id = $exeId";
$rs_last_attempt = Database::query($sql);
$row_last_attempt = Database::fetch_array($rs_last_attempt);
$date = $row_last_attempt['last_attempt_date']; //Get the date of last attempt
return $date;
}
/**
* Gets the last attempt of an exercise based in the exe_id.
*
* @param int $exeId
*
* @return mixed
*/
public static function getLatestQuestionIdFromAttempt($exeId)
{
$exeId = (int) $exeId;
$track_attempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$sql = "SELECT question_id FROM $track_attempts
WHERE exe_id = $exeId
ORDER BY tms DESC
LIMIT 1";
$result = Database::query($sql);
if (Database::num_rows($result)) {
$row = Database::fetch_array($result);
return $row['question_id'];
}
return false;
}
/**
* Gets how many attempts exists by user, exercise, learning path.
*
* @param int user id
* @param int exercise id
* @param int lp id
* @param int lp item id
* @param int lp item view id
*
* @return int
*/
public static function get_attempt_count(
$user_id,
$exerciseId,
$lp_id,
$lp_item_id,
$lp_item_view_id
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$user_id = (int) $user_id;
$exerciseId = (int) $exerciseId;
$lp_id = (int) $lp_id;
$lp_item_id = (int) $lp_item_id;
$lp_item_view_id = (int) $lp_item_view_id;
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
$sql = "SELECT count(*) as count
FROM $table
WHERE
exe_exo_id = $exerciseId AND
exe_user_id = $user_id AND
status != 'incomplete' AND
orig_lp_id = $lp_id AND
orig_lp_item_id = $lp_item_id AND
orig_lp_item_view_id = $lp_item_view_id AND
c_id = $courseId AND
session_id = $sessionId";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$attempt = Database::fetch_array($result, 'ASSOC');
return (int) $attempt['count'];
}
return 0;
}
public static function getAttemptPosition(
$exeId,
$user_id,
$exerciseId,
$lp_id,
$lp_item_id,
$lp_item_view_id
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$user_id = (int) $user_id;
$exerciseId = (int) $exerciseId;
$lp_id = (int) $lp_id;
$lp_item_id = (int) $lp_item_id;
$lp_item_view_id = (int) $lp_item_view_id;
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
$sql = "SELECT exe_id
FROM $table
WHERE
exe_exo_id = $exerciseId AND
exe_user_id = $user_id AND
status = '' AND
orig_lp_id = $lp_id AND
orig_lp_item_id = $lp_item_id AND
orig_lp_item_view_id = $lp_item_view_id AND
c_id = $courseId AND
session_id = $sessionId
ORDER by exe_id
";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$position = 1;
while ($row = Database::fetch_array($result, 'ASSOC')) {
if ($row['exe_id'] === $exeId) {
break;
}
$position++;
}
return $position;
}
return 0;
}
/**
* @param $user_id
* @param $exerciseId
* @param $lp_id
* @param $lp_item_id
*
* @return int
*/
public static function get_attempt_count_not_finished(
$user_id,
$exerciseId,
$lp_id,
$lp_item_id
) {
$stat_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$user_id = (int) $user_id;
$exerciseId = (int) $exerciseId;
$lp_id = (int) $lp_id;
$lp_item_id = (int) $lp_item_id;
//$lp_item_view_id = (int) $lp_item_view_id;
$courseId = api_get_course_int_id();
$sessionId = api_get_session_id();
$sql = "SELECT count(*) as count
FROM $stat_table
WHERE
exe_exo_id = $exerciseId AND
exe_user_id = $user_id AND
status != 'incomplete' AND
orig_lp_id = $lp_id AND
orig_lp_item_id = $lp_item_id AND
c_id = $courseId AND
session_id = $sessionId";
$query = Database::query($sql);
if (Database::num_rows($query) > 0) {
$attempt = Database::fetch_array($query, 'ASSOC');
return (int) $attempt['count'];
}
return 0;
}
/**
* @param int $user_id
* @param int $lp_id
* @param array $course
* @param int $session_id
* @param bool $disconnectExerciseResultsFromLp (Replace orig_lp_* variables to null)
*
* @return bool
*/
public static function delete_student_lp_events(
$user_id,
$lp_id,
$course,
$session_id,
$disconnectExerciseResultsFromLp = false
) {
$lp_view_table = Database::get_course_table(TABLE_LP_VIEW);
$lp_item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
$lpInteraction = Database::get_course_table(TABLE_LP_IV_INTERACTION);
$lpObjective = Database::get_course_table(TABLE_LP_IV_OBJECTIVE);
if (empty($course) || empty($user_id)) {
return false;
}
$course_id = $course['real_id'];
$user_id = (int) $user_id;
$lp_id = (int) $lp_id;
$session_id = (int) $session_id;
if (empty($course_id)) {
$course_id = api_get_course_int_id();
}
$track_e_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$track_attempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$recording_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
// Make sure we have the exact lp_view_id
$sql = "SELECT id FROM $lp_view_table
WHERE
c_id = $course_id AND
user_id = $user_id AND
lp_id = $lp_id AND
session_id = $session_id";
$result = Database::query($sql);
if (Database::num_rows($result)) {
$view = Database::fetch_array($result, 'ASSOC');
$lp_view_id = $view['id'];
$sql = "DELETE FROM $lp_item_view_table
WHERE c_id = $course_id AND lp_view_id = $lp_view_id";
Database::query($sql);
$sql = "DELETE FROM $lpInteraction
WHERE c_id = $course_id AND lp_iv_id = $lp_view_id";
Database::query($sql);
$sql = "DELETE FROM $lpObjective
WHERE c_id = $course_id AND lp_iv_id = $lp_view_id";
Database::query($sql);
}
if (api_get_configuration_value('lp_minimum_time')) {
$sql = "DELETE FROM track_e_access_complete
WHERE
tool = 'learnpath' AND
c_id = $course_id AND
tool_id = $lp_id AND
user_id = $user_id AND
session_id = $session_id
";
Database::query($sql);
}
$sql = "SELECT exe_id FROM $track_e_exercises
WHERE
exe_user_id = $user_id AND
session_id = $session_id AND
c_id = $course_id AND
orig_lp_id = $lp_id";
$result = Database::query($sql);
$exeList = [];
while ($row = Database::fetch_array($result, 'ASSOC')) {
$exeList[] = $row['exe_id'];
}
if (!empty($exeList) && count($exeList) > 0) {
$exeListString = implode(',', $exeList);
if ($disconnectExerciseResultsFromLp) {
$sql = "UPDATE $track_e_exercises
SET orig_lp_id = null,
orig_lp_item_id = null,
orig_lp_item_view_id = null
WHERE exe_id IN ($exeListString)";
Database::query($sql);
} else {
$sql = "DELETE FROM $track_e_exercises
WHERE exe_id IN ($exeListString)";
Database::query($sql);
$sql = "DELETE FROM $track_attempts
WHERE exe_id IN ($exeListString)";
Database::query($sql);
$sql = "DELETE FROM $recording_table
WHERE exe_id IN ($exeListString)";
Database::query($sql);
}
}
$sql = "DELETE FROM $lp_view_table
WHERE
c_id = $course_id AND
user_id = $user_id AND
lp_id= $lp_id AND
session_id = $session_id
";
Database::query($sql);
self::addEvent(
LOG_LP_ATTEMPT_DELETE,
LOG_LP_ID,
$lp_id,
null,
null,
$course_id,
$session_id
);
return true;
}
/**
* Records information for common (or admin) events (in the track_e_default table).
*
* @param string $event_type Type of event
* @param string $event_value_type Type of value
* @param mixed $event_value Value (string, or array in the case of user info)
* @param string $datetime Datetime (UTC) (defaults to null)
* @param int $user_id User ID (defaults to null)
* @param int $course_id Course ID (defaults to null)
* @param int $sessionId Session ID
*
* @return bool
* @assert ('','','') === false
* @author Yannick Warnier <yannick.warnier@beeznest.com>
*
*/
public static function addEvent(
$event_type,
$event_value_type,
$event_value,
$datetime = null,
$user_id = null,
$course_id = null,
$sessionId = 0
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
if (empty($event_type)) {
return false;
}
$event_type = Database::escape_string($event_type);
$event_value_type = Database::escape_string($event_value_type);
if (!empty($course_id)) {
$course_id = (int) $course_id;
} else {
$course_id = api_get_course_int_id();
}
if (!empty($sessionId)) {
$sessionId = (int) $sessionId;
} else {
$sessionId = api_get_session_id();
}
//Clean the user_info
if (LOG_USER_OBJECT == $event_value_type) {
if (is_array($event_value)) {
unset($event_value['complete_name']);
unset($event_value['complete_name_with_username']);
unset($event_value['firstName']);
unset($event_value['lastName']);
unset($event_value['avatar_small']);
unset($event_value['avatar']);
unset($event_value['mail']);
unset($event_value['password']);
unset($event_value['last_login']);
unset($event_value['picture_uri']);
$event_value = serialize($event_value);
}
}
// If event is an array then the $event_value_type should finish with
// the suffix _array for example LOG_WORK_DATA = work_data_array
if (is_array($event_value)) {
$event_value = serialize($event_value);
}
$event_value = Database::escape_string($event_value);
$sessionId = empty($sessionId) ? api_get_session_id() : (int) $sessionId;
if (!isset($datetime)) {
$datetime = api_get_utc_datetime();
}
$datetime = Database::escape_string($datetime);
if (!isset($user_id)) {
$user_id = api_get_user_id();
}
$params = [
'default_user_id' => $user_id,
'c_id' => $course_id,
'default_date' => $datetime,
'default_event_type' => $event_type,
'default_value_type' => $event_value_type,
'default_value' => $event_value,
'session_id' => $sessionId,
];
Database::insert($table, $params);
return true;
}
/**
* Delete all exercise attempts (included in LP or not).
*
* @param int user id
* @param int exercise id
* @param int $course_id
* @param int session id
*/
public static function delete_all_incomplete_attempts(
$user_id,
$exercise_id,
$course_id,
$session_id = 0
) {
$user_id = (int) $user_id;
$exercise_id = (int) $exercise_id;
$course_id = (int) $course_id;
$session_id = (int) $session_id;
if (!empty($user_id) && !empty($exercise_id) && !empty($course_id)) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$sql = "DELETE FROM $table
WHERE
exe_user_id = $user_id AND
exe_exo_id = $exercise_id AND
c_id = $course_id AND
session_id = $session_id AND
status = 'incomplete' ";
Database::query($sql);
self::addEvent(
LOG_EXERCISE_RESULT_DELETE,
LOG_EXERCISE_AND_USER_ID,
$exercise_id.'-'.$user_id,
null,
null,
$course_id,
$session_id
);
}
}
/**
* Gets all exercise results (NO Exercises in LPs ) from a given exercise id, course, session.
*
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
*
* @return array with the results
*/
public static function get_all_exercise_results(
$exercise_id,
$courseId,
$session_id = 0,
$load_question_list = true,
$user_id = null
) {
$TABLETRACK_EXERCICES = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$user_condition = null;
if (!empty($user_id)) {
$user_id = (int) $user_id;
$user_condition = "AND exe_user_id = $user_id ";
}
$sql = "SELECT * FROM $TABLETRACK_EXERCICES
WHERE
status = '' AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
orig_lp_id =0 AND
orig_lp_item_id = 0
$user_condition
ORDER BY exe_id";
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[$row['exe_id']] = $row;
if ($load_question_list) {
$sql = "SELECT * FROM $TBL_TRACK_ATTEMPT
WHERE exe_id = {$row['exe_id']}";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
}
}
}
return $list;
}
/**
* Gets all exercise results (NO Exercises in LPs ) from a given exercise id, course, session.
*
* @param int $courseId
* @param int $session_id
* @param bool $get_count
*
* @return array with the results
*/
public static function get_all_exercise_results_by_course(
$courseId,
$session_id = 0,
$get_count = true
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$courseId = (int) $courseId;
$session_id = (int) $session_id;
$select = '*';
if ($get_count) {
$select = 'count(*) as count';
}
$sql = "SELECT $select FROM $table_track_exercises
WHERE status = '' AND
c_id = $courseId AND
session_id = $session_id AND
orig_lp_id = 0 AND
orig_lp_item_id = 0
ORDER BY exe_id";
$res = Database::query($sql);
if ($get_count) {
$row = Database::fetch_array($res, 'ASSOC');
return $row['count'];
} else {
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[$row['exe_id']] = $row;
}
return $list;
}
}
/**
* Gets all exercise results (NO Exercises in LPs) from a given exercise id, course, session.
*
* @param int $user_id
* @param int $courseId
* @param int $session_id
*
* @return array with the results
*/
public static function get_all_exercise_results_by_user(
$user_id,
$courseId,
$session_id = 0
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$courseId = (int) $courseId;
$session_id = (int) $session_id;
$user_id = (int) $user_id;
$sql = "SELECT * FROM $table_track_exercises
WHERE
status = '' AND
exe_user_id = $user_id AND
c_id = $courseId AND
session_id = $session_id AND
orig_lp_id = 0 AND
orig_lp_item_id = 0
ORDER by exe_id";
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[$row['exe_id']] = $row;
$sql = "SELECT * FROM $table_track_attempt
WHERE exe_id = {$row['exe_id']}";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$row['exe_id']]['question_list'][$row_q['question_id']] = $row_q;
}
}
return $list;
}
/**
* Gets exercise results (NO Exercises in LPs) from a given exercise id, course, session.
*
* @param int $exe_id attempt id
* @param string $status
*
* @return array with the results
*/
public static function get_exercise_results_by_attempt($exe_id, $status = null)
{
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$table_track_attempt_recording = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
$exe_id = (int) $exe_id;
$status = Database::escape_string($status);
$sql = "SELECT * FROM $table_track_exercises
WHERE status = '$status' AND exe_id = $exe_id";
$res = Database::query($sql);
$list = [];
if (Database::num_rows($res)) {
$row = Database::fetch_array($res, 'ASSOC');
//Checking if this attempt was revised by a teacher
$sql_revised = "SELECT exe_id FROM $table_track_attempt_recording
WHERE author != '' AND exe_id = $exe_id
LIMIT 1";
$res_revised = Database::query($sql_revised);
$row['attempt_revised'] = 0;
if (Database::num_rows($res_revised) > 0) {
$row['attempt_revised'] = 1;
}
$list[$exe_id] = $row;
$sql = "SELECT * FROM $table_track_attempt
WHERE exe_id = $exe_id
ORDER BY tms ASC";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$exe_id]['question_list'][$row_q['question_id']] = $row_q;
}
}
return $list;
}
/**
* Gets exercise results (NO Exercises in LPs) from a given user, exercise id, course, session, lp_id, lp_item_id.
*
* @param int user id
* @param int exercise id
* @param int course id
* @param int session id
* @param int lp id
* @param int lp item id
* @param string order asc or desc
*
* @return array with the results
*/
public static function getExerciseResultsByUser(
$user_id,
$exercise_id,
$courseId,
$session_id = 0,
$lp_id = 0,
$lp_item_id = 0,
$order = null
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$table_track_attempt_recording = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$user_id = (int) $user_id;
$lp_id = (int) $lp_id;
$lp_item_id = (int) $lp_item_id;
if (!in_array(strtolower($order), ['asc', 'desc'])) {
$order = 'asc';
}
$sql = "SELECT * FROM $table_track_exercises
WHERE
status = '' AND
exe_user_id = $user_id AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
orig_lp_id = $lp_id AND
orig_lp_item_id = $lp_item_id
ORDER by exe_id $order ";
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
// Checking if this attempt was revised by a teacher
$exeId = $row['exe_id'];
$sql = "SELECT exe_id FROM $table_track_attempt_recording
WHERE author != '' AND exe_id = $exeId
LIMIT 1";
$res_revised = Database::query($sql);
$row['attempt_revised'] = 0;
if (Database::num_rows($res_revised) > 0) {
$row['attempt_revised'] = 1;
}
$row['total_percentage'] = ($row['score'] / $row['max_score']) * 100;
$list[$row['exe_id']] = $row;
$sql = "SELECT * FROM $table_track_attempt
WHERE exe_id = $exeId";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$row['exe_id']]['question_list'][$row_q['question_id']][] = $row_q;
}
}
return $list;
}
/**
* Count exercise attempts (NO Exercises in LPs ) from a given exercise id, course, session.
*
* @param int $user_id
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
*
* @return array with the results
*/
public static function count_exercise_attempts_by_user(
$user_id,
$exercise_id,
$courseId,
$session_id = 0
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$user_id = (int) $user_id;
$sql = "SELECT count(*) as count
FROM $table
WHERE status = '' AND
exe_user_id = $user_id AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
orig_lp_id =0 AND
orig_lp_item_id = 0
ORDER BY exe_id";
$res = Database::query($sql);
$result = 0;
if (Database::num_rows($res) > 0) {
$row = Database::fetch_array($res, 'ASSOC');
$result = $row['count'];
}
return $result;
}
/**
* Gets all exercise BEST results attempts (NO Exercises in LPs)
* from a given exercise id, course, session per user.
*
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
* @param int $userId
*
* @return array with the results
*
* @todo rename this function
*/
public static function get_best_exercise_results_by_user(
$exercise_id,
$courseId,
$session_id = 0,
$userId = 0
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$sql = "SELECT * FROM $table_track_exercises
WHERE
status = '' AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
orig_lp_id = 0 AND
orig_lp_item_id = 0";
if (!empty($userId)) {
$userId = (int) $userId;
$sql .= " AND exe_user_id = $userId ";
}
$sql .= ' ORDER BY exe_id';
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[$row['exe_id']] = $row;
$exeId = $row['exe_id'];
$sql = "SELECT * FROM $table_track_attempt
WHERE exe_id = $exeId";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$exeId]['question_list'][$row_q['question_id']] = $row_q;
}
}
// Getting the best results of every student
$best_score_return = [];
foreach ($list as $student_result) {
$user_id = $student_result['exe_user_id'];
$current_best_score[$user_id] = $student_result['score'];
if (!isset($best_score_return[$user_id]['score'])) {
$best_score_return[$user_id] = $student_result;
}
if ($current_best_score[$user_id] > $best_score_return[$user_id]['score']) {
$best_score_return[$user_id] = $student_result;
}
}
return $best_score_return;
}
/**
* Get the last best result from all attempts in exercises per user (out of learning paths).
*
* @param int $user_id
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
* @param bool $skipLpResults
*
* @return array
*/
public static function get_best_attempt_exercise_results_per_user(
$user_id,
$exercise_id,
$courseId,
$session_id = 0,
$skipLpResults = true
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$user_id = (int) $user_id;
$sql = "SELECT * FROM $table
WHERE
status = '' AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
exe_user_id = $user_id
";
if ($skipLpResults) {
$sql .= ' AND
orig_lp_id = 0 AND
orig_lp_item_id = 0 ';
}
$sql .= ' ORDER BY exe_id ';
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[$row['exe_id']] = $row;
}
//Getting the best results of every student
$best_score_return = [];
$best_score_return['score'] = 0;
foreach ($list as $result) {
$current_best_score = $result;
if ($current_best_score['score'] > $best_score_return['score']) {
$best_score_return = $result;
}
}
if (!isset($best_score_return['max_score'])) {
$best_score_return = [];
}
return $best_score_return;
}
/**
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
*
* @return mixed
*/
public static function count_exercise_result_not_validated(
$exercise_id,
$courseId,
$session_id = 0
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT_RECORDING);
$courseId = (int) $courseId;
$session_id = (int) $session_id;
$exercise_id = (int) $exercise_id;
$sql = "SELECT count(e.exe_id) as count
FROM $table_track_exercises e
LEFT JOIN $table_track_attempt a
ON e.exe_id = a.exe_id
WHERE
exe_exo_id = $exercise_id AND
c_id = $courseId AND
e.session_id = $session_id AND
orig_lp_id = 0 AND
marks IS NULL AND
status = '' AND
orig_lp_item_id = 0
ORDER BY e.exe_id";
$res = Database::query($sql);
$row = Database::fetch_array($res, 'ASSOC');
return $row['count'];
}
/**
* Gets all exercise events from a Learning Path within a Course nd Session.
*
* @param int $exercise_id
* @param int $courseId
* @param int $session_id
*
* @return array
*/
public static function get_all_exercise_event_from_lp(
$exercise_id,
$courseId,
$session_id = 0
) {
$table_track_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$courseId = (int) $courseId;
$exercise_id = (int) $exercise_id;
$session_id = (int) $session_id;
$sql = "SELECT * FROM $table_track_exercises
WHERE
status = '' AND
c_id = $courseId AND
exe_exo_id = $exercise_id AND
session_id = $session_id AND
orig_lp_id !=0 AND
orig_lp_item_id != 0";
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$exeId = $row['exe_id'];
$list[$exeId] = $row;
$sql = "SELECT * FROM $table_track_attempt
WHERE exe_id = $exeId";
$res_question = Database::query($sql);
while ($row_q = Database::fetch_array($res_question, 'ASSOC')) {
$list[$exeId]['question_list'][$row_q['question_id']] = $row_q;
}
}
return $list;
}
/**
* Get a list of all the exercises in a given learning path.
*
* @param int $lp_id
* @param int $course_id This parameter is probably deprecated as lp_id now is a global iid
*
* @return array
*/
public static function get_all_exercises_from_lp($lp_id, $course_id)
{
$lp_item_table = Database::get_course_table(TABLE_LP_ITEM);
$course_id = (int) $course_id;
$lp_id = (int) $lp_id;
$sql = "SELECT * FROM $lp_item_table
WHERE
c_id = $course_id AND
lp_id = $lp_id AND
item_type = 'quiz'
ORDER BY parent_item_id, display_order";
$res = Database::query($sql);
$list = [];
while ($row = Database::fetch_array($res, 'ASSOC')) {
$list[] = $row;
}
return $list;
}
/**
* This function gets the comments of an exercise.
*
* @param int $exe_id
* @param int $question_id
*
* @return string the comment
*/
public static function get_comments($exe_id, $question_id)
{
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$exe_id = (int) $exe_id;
$question_id = (int) $question_id;
$sql = "SELECT teacher_comment
FROM $table
WHERE
exe_id = $exe_id AND
question_id = $question_id
ORDER by question_id";
$sqlres = Database::query($sql);
$comm = strval(Database::result($sqlres, 0, 'teacher_comment'));
$comm = trim($comm);
return $comm;
}
/**
* Get all the track_e_attempt records for a given
* track_e_exercises.exe_id (pk).
*
* @param int $exeId The exe_id from an exercise attempt record
*
* @return array The complete records from track_e_attempt that match the given exe_id
*/
public static function getAllExerciseEventByExeId($exeId)
{
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$exeId = (int) $exeId;
$sql = "SELECT * FROM $table
WHERE exe_id = $exeId
ORDER BY position";
$res_question = Database::query($sql);
$list = [];
if (Database::num_rows($res_question)) {
while ($row = Database::fetch_array($res_question, 'ASSOC')) {
$list[$row['question_id']][] = $row;
}
}
return $list;
}
/**
* Delete one record from the track_e_attempt table (recorded quiz answer)
* and register the deletion event (LOG_QUESTION_RESULT_DELETE) in
* track_e_default.
*
* @param int $exeId The track_e_exercises.exe_id (primary key)
* @param int $user_id The user who answered (already contained in exe_id)
* @param int $courseId The course in which it happened (already contained in exe_id)
* @param int $session_id The session in which it happened (already contained in exe_id)
* @param int $question_id The c_quiz_question.iid
*/
public static function delete_attempt(
$exeId,
$user_id,
$courseId,
$session_id,
$question_id
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$exeId = (int) $exeId;
$user_id = (int) $user_id;
$courseId = (int) $courseId;
$session_id = (int) $session_id;
$question_id = (int) $question_id;
$sql = "DELETE FROM $table
WHERE
exe_id = $exeId AND
user_id = $user_id AND
c_id = $courseId AND
session_id = $session_id AND
question_id = $question_id ";
Database::query($sql);
self::addEvent(
LOG_QUESTION_RESULT_DELETE,
LOG_EXERCISE_ATTEMPT_QUESTION_ID,
$exeId.'-'.$question_id,
null,
null,
$courseId,
$session_id
);
}
/**
* Delete one record from the track_e_hotspot table based on a given
* track_e_exercises.exe_id.
*
* @param $exeId
* @param $user_id
* @param int $courseId
* @param $question_id
* @param int $sessionId
*/
public static function delete_attempt_hotspot(
$exeId,
$user_id,
$courseId,
$question_id,
$sessionId = null
) {
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$exeId = (int) $exeId;
$user_id = (int) $user_id;
$courseId = (int) $courseId;
$question_id = (int) $question_id;
if (!isset($sessionId)) {
$sessionId = api_get_session_id();
}
$sql = "DELETE FROM $table
WHERE
hotspot_exe_id = $exeId AND
hotspot_user_id = $user_id AND
c_id = $courseId AND
hotspot_question_id = $question_id ";
Database::query($sql);
self::addEvent(
LOG_QUESTION_RESULT_DELETE,
LOG_EXERCISE_ATTEMPT_QUESTION_ID,
$exeId.'-'.$question_id,
null,
null,
$courseId,
$sessionId
);
}
/**
* Registers in track_e_course_access when user logs in for the first time to a course.
*
* @param int $courseId ID of the course
* @param int $user_id ID of the user
* @param int $sessionId ID of the session (if any)
*
* @return bool
*/
public static function eventCourseLogin($courseId, $user_id, $sessionId)
{
if (Session::read('login_as')) {
return false;
}
$sessionId = (int) $sessionId;
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
$loginDate = $logoutDate = api_get_utc_datetime();
// $counter represents the number of time this record has been refreshed
$counter = 1;
$courseId = (int) $courseId;
$user_id = (int) $user_id;
$ip = Database::escape_string(api_get_real_ip());
$sql = "INSERT INTO $table(c_id, user_ip, user_id, login_course_date, logout_course_date, counter, session_id)
VALUES($courseId, '$ip', $user_id, '$loginDate', '$logoutDate', $counter, $sessionId)";
$courseAccessId = Database::query($sql);
if ($courseAccessId) {
// Course catalog stats modifications see #4191
CourseManager::update_course_ranking(
null,
null,
null,
null,
true,
false
);
return true;
}
}
/**
* Updates the user - course - session every X minutes
* In order to avoid.
*
* @param int $courseId
* @param int $userId
* @param int $sessionId
* @param int $minutes
*
* @return bool
*/
public static function eventCourseLoginUpdate(
$courseId,
$userId,
$sessionId,
$minutes = 5
) {
if (Session::read('login_as')) {
return false;
}
if (empty($courseId) || empty($userId)) {
return false;
}
$sessionId = (int) $sessionId;
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
$courseId = (int) $courseId;
$userId = (int) $userId;
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
$sql = "SELECT course_access_id, logout_course_date
FROM $table
WHERE
c_id = $courseId AND
session_id = $sessionId AND
user_id = $userId
ORDER BY login_course_date DESC
LIMIT 1";
$result = Database::query($sql);
// Save every 5 minutes by default
$seconds = $minutes * 60;
$maxSeconds = 3600; // Only update if max diff is one hour
if (Database::num_rows($result)) {
$row = Database::fetch_array($result);
$id = $row['course_access_id'];
$logout = $row['logout_course_date'];
$now = time();
$logout = api_strtotime($logout, 'UTC');
if ($now - $logout > $seconds &&
$now - $logout < $maxSeconds
) {
$now = api_get_utc_datetime();
$sql = "UPDATE $table SET
logout_course_date = '$now',
counter = counter + 1
WHERE course_access_id = $id";
Database::query($sql);
}
return true;
}
return false;
}
/**
* Register the logout of the course (usually when logging out of the platform)
* from the track_e_course_access table.
*
* @param array $logoutInfo Information stored by local.inc.php
* before new context ['uid'=> x, 'cid'=>y, 'sid'=>z]
*
* @return bool
*/
public static function courseLogout($logoutInfo)
{
if (Session::read('login_as')) {
return false;
}
if (empty($logoutInfo['uid']) || empty($logoutInfo['cid'])) {
return false;
}
$sessionLifetime = api_get_configuration_value('session_lifetime');
/*
* When $_configuration['session_lifetime'] is larger than ~100 hours
* (in order to let users take exercises with no problems)
* the function Tracking::get_time_spent_on_the_course() returns larger values (200h) due the condition:
* login_course_date > now() - INTERVAL $session_lifetime SECOND
*/
if (empty($sessionLifetime) || $sessionLifetime > 86400) {
$sessionLifetime = 3600; // 1 hour
}
if (!empty($logoutInfo) && !empty($logoutInfo['cid'])) {
$sessionId = 0;
if (!empty($logoutInfo['sid'])) {
$sessionId = (int) $logoutInfo['sid'];
}
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
$tableCourseAccess = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
$userId = (int) $logoutInfo['uid'];
$courseId = (int) $logoutInfo['cid'];
$currentDate = api_get_utc_datetime();
// UTC time
$diff = time() - $sessionLifetime;
$time = api_get_utc_datetime($diff);
$sql = "SELECT course_access_id, logout_course_date
FROM $tableCourseAccess
WHERE
user_id = $userId AND
c_id = $courseId AND
session_id = $sessionId AND
login_course_date > '$time'
ORDER BY login_course_date DESC
LIMIT 1";
$result = Database::query($sql);
$insert = false;
if (Database::num_rows($result) > 0) {
$row = Database::fetch_array($result, 'ASSOC');
$courseAccessId = $row['course_access_id'];
$sql = "UPDATE $tableCourseAccess SET
logout_course_date = '$currentDate',
counter = counter + 1
WHERE course_access_id = $courseAccessId";
Database::query($sql);
} else {
$insert = true;
}
if ($insert) {
$ip = Database::escape_string(api_get_real_ip());
$sql = "INSERT INTO $tableCourseAccess (c_id, user_ip, user_id, login_course_date, logout_course_date, counter, session_id)
VALUES ($courseId, '$ip', $userId, '$currentDate', '$currentDate', 1, $sessionId)";
Database::query($sql);
}
return true;
}
}
/**
* Register a "fake" time spent on the platform, for example to match the
* estimated time he took to author an assignment/work, see configuration
* setting considered_working_time.
* This assumes there is already some connection of the student to the
* course, otherwise he wouldn't be able to upload an assignment.
* This works by creating a new record, copy of the current one, then
* updating the current one to be just the considered_working_time and
* end at the same second as the user connected to the course.
*
* @param int $courseId The course in which to add the time
* @param int $userId The user for whom to add the time
* @param int $sessionId The session in which to add the time (if any)
* @param string $virtualTime The amount of time to be added,
* in a hh:mm:ss format. If int, we consider it is expressed in hours.
* @param int $workId Student publication id result
*
* @return true on successful insertion, false otherwise
*/
public static function eventAddVirtualCourseTime(
$courseId,
$userId,
$sessionId,
$virtualTime,
$workId
) {
if (empty($virtualTime)) {
return false;
}
$courseId = (int) $courseId;
$userId = (int) $userId;
$sessionId = (int) $sessionId;
$logoutDate = api_get_utc_datetime();
$loginDate = ChamiloApi::addOrSubTimeToDateTime(
$virtualTime,
$logoutDate,
false
);
$ip = api_get_real_ip();
$params = [
'login_course_date' => $loginDate,
'logout_course_date' => $logoutDate,
'session_id' => $sessionId,
'user_id' => $userId,
'counter' => 0,
'c_id' => $courseId,
'user_ip' => $ip,
];
$courseTrackingTable = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
Database::insert($courseTrackingTable, $params);
// Time should also be added to the track_e_login table so as to
// affect total time on the platform
$params = [
'login_user_id' => $userId,
'login_date' => $loginDate,
'user_ip' => $ip,
'logout_date' => $logoutDate,
];
$platformTrackingTable = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
Database::insert($platformTrackingTable, $params);
if (Tracking::minimumTimeAvailable($sessionId, $courseId)) {
$workId = (int) $workId;
$uniqueId = time();
$logInfo = [
'c_id' => $courseId,
'session_id' => $sessionId,
'tool' => TOOL_STUDENTPUBLICATION,
'date_reg' => $loginDate,
'action' => 'add_work_start_'.$workId,
'action_details' => $virtualTime,
'user_id' => $userId,
'current_id' => $uniqueId,
];
self::registerLog($logInfo);
$logInfo = [
'c_id' => $courseId,
'session_id' => $sessionId,
'tool' => TOOL_STUDENTPUBLICATION,
'date_reg' => $logoutDate,
'action' => 'add_work_end_'.$workId,
'action_details' => $virtualTime,
'user_id' => $userId,
'current_id' => $uniqueId,
];
self::registerLog($logInfo);
}
return true;
}
/**
* Register the logout of the course (usually when logging out of the platform)
* from the track_e_access_complete table.
*
* @param array $logInfo Information stored by local.inc.php
*
* @return bool
*/
public static function registerLog($logInfo)
{
$sessionId = api_get_session_id();
$courseId = api_get_course_int_id();
if (isset($logInfo['c_id']) && !empty($logInfo['c_id'])) {
$courseId = $logInfo['c_id'];
}
if (isset($logInfo['session_id']) && !empty($logInfo['session_id'])) {
$sessionId = $logInfo['session_id'];
}
if (!Tracking::minimumTimeAvailable($sessionId, $courseId)) {
return false;
}
if (false === self::isSessionLogNeedToBeSave($sessionId)) {
return false;
}
$loginAs = true === (int) Session::read('login_as');
$logInfo['user_id'] = isset($logInfo['user_id']) ? $logInfo['user_id'] : api_get_user_id();
$logInfo['date_reg'] = isset($logInfo['date_reg']) ? $logInfo['date_reg'] : api_get_utc_datetime();
$logInfo['tool'] = !empty($logInfo['tool']) ? $logInfo['tool'] : '';
$logInfo['tool_id'] = !empty($logInfo['tool_id']) ? (int) $logInfo['tool_id'] : 0;
$logInfo['tool_id_detail'] = !empty($logInfo['tool_id_detail']) ? (int) $logInfo['tool_id_detail'] : 0;
$logInfo['action'] = !empty($logInfo['action']) ? $logInfo['action'] : '';
$logInfo['action_details'] = !empty($logInfo['action_details']) ? $logInfo['action_details'] : '';
$logInfo['ip_user'] = api_get_real_ip();
$logInfo['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
$logInfo['session_id'] = $sessionId;
$logInfo['c_id'] = $courseId;
$logInfo['ch_sid'] = session_id();
$logInfo['login_as'] = $loginAs;
$logInfo['info'] = !empty($logInfo['info']) ? $logInfo['info'] : '';
$logInfo['url'] = $_SERVER['REQUEST_URI'];
$logInfo['current_id'] = isset($logInfo['current_id']) ? $logInfo['current_id'] : Session::read('last_id', 0);
$id = Database::insert('track_e_access_complete', $logInfo);
if ($id && empty($logInfo['current_id'])) {
Session::write('last_id', $id);
}
return true;
}
/**
* Removes a "fake" time spent on the platform, for example to match the
* estimated time he took to author an assignment/work, see configuration
* setting considered_working_time.
* This method should be called when something that generated a fake
* time record is removed. Given the database link is weak (no real
* relationship kept between the deleted item and this record), this
* method just looks for the latest record that has the same time as the
* item's fake time, is in the past and in this course+session. If such a
* record cannot be found, it doesn't do anything.
* The IP address is not considered a useful filter here.
*
* @param int $courseId The course in which to add the time
* @param int $userId The user for whom to add the time
* @param int $sessionId The session in which to add the time (if any)
* @param string $virtualTime The amount of time to be added, in a hh:mm:ss format. If int, we consider it is
* expressed in hours.
*
* @return true on successful removal, false otherwise
*/
public static function eventRemoveVirtualCourseTime(
$courseId,
$userId,
$sessionId = 0,
$virtualTime,
$workId
) {
if (empty($virtualTime)) {
return false;
}
$originalVirtualTime = $virtualTime;
$courseTrackingTable = Database::get_main_table(TABLE_STATISTIC_TRACK_E_COURSE_ACCESS);
$platformTrackingTable = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$courseId = (int) $courseId;
$userId = (int) $userId;
$sessionId = (int) $sessionId;
// Change $virtualTime format from hh:mm:ss to hhmmss which is the
// format returned by SQL for a subtraction of two datetime values
// @todo make sure this is portable between DBMSes
// @todo make sure this is portable between DBMSes
if (preg_match('/:/', $virtualTime)) {
[$h, $m, $s] = preg_split('/:/', $virtualTime);
$virtualTime = $h * 3600 + $m * 60 + $s;
} else {
$virtualTime *= 3600;
}
// Get the current latest course connection register. We need that
// record to re-use the data and create a new record.
$sql = "SELECT course_access_id
FROM $courseTrackingTable
WHERE
user_id = $userId AND
c_id = $courseId AND
session_id = $sessionId AND
counter = 0 AND
(UNIX_TIMESTAMP(logout_course_date) - UNIX_TIMESTAMP(login_course_date)) = '$virtualTime'
ORDER BY login_course_date DESC LIMIT 0,1";
$result = Database::query($sql);
// Ignore if we didn't find any course connection record in the last
// hour. In this case it wouldn't be right to add a "fake" time record.
if (Database::num_rows($result) > 0) {
// Found the latest connection
$row = Database::fetch_row($result);
$courseAccessId = $row[0];
$sql = "DELETE FROM $courseTrackingTable
WHERE course_access_id = $courseAccessId";
Database::query($sql);
}
$sql = "SELECT login_id
FROM $platformTrackingTable
WHERE
login_user_id = $userId AND
(UNIX_TIMESTAMP(logout_date) - UNIX_TIMESTAMP(login_date)) = '$virtualTime'
ORDER BY login_date DESC LIMIT 0,1";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$row = Database::fetch_row($result);
$loginAccessId = $row[0];
$sql = "DELETE FROM $platformTrackingTable
WHERE login_id = $loginAccessId";
Database::query($sql);
}
if (Tracking::minimumTimeAvailable($sessionId, $courseId)) {
$workId = (int) $workId;
$sql = "SELECT id FROM track_e_access_complete
WHERE
tool = '".TOOL_STUDENTPUBLICATION."' AND
c_id = $courseId AND
session_id = $sessionId AND
user_id = $userId AND
action_details = '$originalVirtualTime' AND
action = 'add_work_start_$workId' ";
$result = Database::query($sql);
$result = Database::fetch_array($result);
if ($result) {
$sql = 'DELETE FROM track_e_access_complete WHERE id = '.$result['id'];
Database::query($sql);
}
$sql = "SELECT id FROM track_e_access_complete
WHERE
tool = '".TOOL_STUDENTPUBLICATION."' AND
c_id = $courseId AND
session_id = $sessionId AND
user_id = $userId AND
action_details = '$originalVirtualTime' AND
action = 'add_work_end_$workId' ";
$result = Database::query($sql);
$result = Database::fetch_array($result);
if ($result) {
$sql = 'DELETE FROM track_e_access_complete WHERE id = '.$result['id'];
Database::query($sql);
}
}
return false;
}
public static function getAttemptQuestionDuration($exeId, $questionId)
{
// Check current attempt.
$questionAttempt = self::getQuestionAttemptByExeIdAndQuestion($exeId, $questionId);
$alreadySpent = 0;
if (!empty($questionAttempt) && $questionAttempt['seconds_spent']) {
$alreadySpent = $questionAttempt['seconds_spent'];
}
$now = time();
$questionStart = Session::read('question_start', []);
if (!empty($questionStart) &&
isset($questionStart[$questionId]) && !empty($questionStart[$questionId])
) {
$time = $questionStart[$questionId];
} else {
$diff = 0;
if (!empty($alreadySpent)) {
$diff = $alreadySpent;
}
$time = $questionStart[$questionId] = $now - $diff;
Session::write('question_start', $questionStart);
}
return $now - $time;
}
public static function getQuestionAttemptByExeIdAndQuestion($exeId, $questionId)
{
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$exeId = (int) $exeId;
$questionId = (int) $questionId;
$sql = "SELECT * FROM $table
WHERE
exe_id = $exeId AND
question_id = $questionId
ORDER BY position";
$result = Database::query($sql);
$attempt = [];
if (Database::num_rows($result)) {
$attempt = Database::fetch_array($result, 'ASSOC');
}
return $attempt;
}
}