%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/* For licensing terms, see /license.txt */
/**
* Gradebook link to attendance item.
*
* @author Christian Fasanando (christian1827@gmail.com)
*/
class AttendanceLink extends AbstractLink
{
private $attendance_table = null;
private $itemprop_table = null;
/**
* Constructor.
*/
public function __construct()
{
parent::__construct();
$this->set_type(LINK_ATTENDANCE);
}
/**
* @return string
*/
public function get_type_name()
{
return get_lang('Attendance');
}
/**
* @return bool
*/
public function is_allowed_to_change_name()
{
return false;
}
/**
* Generate an array of all attendances available.
*
* @return array 2-dimensional array - every element contains 2 subelements (id, name)
*/
public function get_all_links()
{
if (empty($this->course_code)) {
return [];
}
$tbl_attendance = $this->get_attendance_table();
$sessionId = $this->get_session_id();
$sql = 'SELECT att.id, att.name, att.attendance_qualify_title
FROM '.$tbl_attendance.' att
WHERE
att.c_id = '.$this->course_id.' AND
att.active = 1 AND
att.session_id = '.$sessionId;
$result = Database::query($sql);
while ($data = Database::fetch_array($result)) {
if (isset($data['attendance_qualify_title']) && '' != $data['attendance_qualify_title']) {
$cats[] = [$data['id'], $data['attendance_qualify_title']];
} else {
$cats[] = [$data['id'], $data['name']];
}
}
$my_cats = isset($cats) ? $cats : [];
return $my_cats;
}
/**
* Has anyone done this exercise yet ?
*/
public function has_results()
{
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$sessionId = $this->get_session_id();
$sql = 'SELECT count(*) AS number FROM '.$tbl_attendance_result."
WHERE
session_id = $sessionId AND
c_id = '.$this->course_id.' AND
attendance_id = '".$this->get_ref_id()."'";
$result = Database::query($sql);
$number = Database::fetch_row($result);
return 0 != $number[0];
}
/**
* @param int $stud_id
*
* @return array|null
*/
public function calc_score($stud_id = null, $type = null)
{
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$sessionId = $this->get_session_id();
// get attendance qualify max
$sql = 'SELECT att.attendance_qualify_max
FROM '.$this->get_attendance_table().' att
WHERE
att.c_id = '.$this->course_id.' AND
att.id = '.$this->get_ref_id().' AND
att.session_id = '.$sessionId;
$query = Database::query($sql);
$attendance = Database::fetch_array($query, 'ASSOC');
// Get results
$sql = 'SELECT *
FROM '.$tbl_attendance_result.'
WHERE c_id = '.$this->course_id.' AND attendance_id = '.$this->get_ref_id();
if (isset($stud_id)) {
$sql .= ' AND user_id = '.intval($stud_id);
}
$scores = Database::query($sql);
// for 1 student
if (isset($stud_id)) {
if ($data = Database::fetch_array($scores, 'ASSOC')) {
return [
$data['score'],
$attendance['attendance_qualify_max'],
];
} else {
//We sent the 0/attendance_qualify_max instead of null for correct calculations
return [0, $attendance['attendance_qualify_max']];
}
} else {
// all students -> get average
$students = []; // user list, needed to make sure we only
// take first attempts into account
$rescount = 0;
$sum = 0;
$sumResult = 0;
$bestResult = 0;
while ($data = Database::fetch_array($scores)) {
if (!(array_key_exists($data['user_id'], $students))) {
if (0 != $attendance['attendance_qualify_max']) {
$students[$data['user_id']] = $data['score'];
$rescount++;
$sum += $data['score'] / $attendance['attendance_qualify_max'];
$sumResult += $data['score'];
if ($data['score'] > $bestResult) {
$bestResult = $data['score'];
}
$weight = $attendance['attendance_qualify_max'];
}
}
}
if (0 == $rescount) {
return [null, null];
} else {
switch ($type) {
case 'best':
return [$bestResult, $weight];
break;
case 'average':
return [$sumResult / $rescount, $weight];
break;
case 'ranking':
return AbstractLink::getCurrentUserRanking($stud_id, $students);
break;
default:
return [$sum, $rescount];
break;
}
}
}
}
public function needs_name_and_description()
{
return false;
}
public function needs_max()
{
return false;
}
public function needs_results()
{
return false;
}
/**
* @return string
*/
public function get_name()
{
$this->get_attendance_data();
$attendance_title = isset($this->attendance_data['name']) ? $this->attendance_data['name'] : '';
$attendance_qualify_title = isset($this->attendance_data['attendance_qualify_title']) ? $this->attendance_data['attendance_qualify_title'] : '';
if (isset($attendance_qualify_title) && '' != $attendance_qualify_title) {
return $this->attendance_data['attendance_qualify_title'];
} else {
return $attendance_title;
}
}
/**
* @return string
*/
public function get_description()
{
return '';
}
/**
* Check if this still links to an exercise.
*/
public function is_valid_link()
{
$sql = 'SELECT count(att.id) FROM '.$this->get_attendance_table().' att
WHERE att.c_id = '.$this->course_id.' AND att.id = '.$this->get_ref_id();
$result = Database::query($sql);
$number = Database::fetch_row($result);
return 0 != $number[0];
}
public function get_link()
{
// it was extracts the attendance id
$sessionId = $this->get_session_id();
$sql = 'SELECT * FROM '.$this->get_attendance_table().' att
WHERE att.c_id = '.$this->course_id.' AND att.id = '.$this->get_ref_id();
$result = Database::query($sql);
$row = Database::fetch_array($result, 'ASSOC');
$attendance_id = $row['id'];
$url = api_get_path(WEB_PATH).'main/attendance/index.php?action=attendance_sheet_list&gradebook=view&attendance_id='.$attendance_id.'&'.api_get_cidreq_params($this->get_course_code(), $sessionId);
return $url;
}
/**
* @return string
*/
public function get_icon_name()
{
return 'attendance';
}
/**
* Lazy load function to get the database table of the student publications.
*/
private function get_attendance_table()
{
$this->attendance_table = Database::get_course_table(TABLE_ATTENDANCE);
return $this->attendance_table;
}
/**
* @return array|bool
*/
private function get_attendance_data()
{
$tbl_name = $this->get_attendance_table();
if ('' == $tbl_name) {
return false;
} elseif (!isset($this->attendance_data)) {
$sql = 'SELECT * FROM '.$this->get_attendance_table().' att
WHERE att.c_id = '.$this->course_id.' AND att.id = '.$this->get_ref_id();
$query = Database::query($sql);
$this->attendance_data = Database::fetch_array($query);
}
return $this->attendance_data;
}
}
Zerion Mini Shell 1.0