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chamilo-lms/main/inc/lib/attendance.lib.php

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<?php
/* For licensing terms, see /license.txt */
/**
* This file contains class used like library, provides functions for attendance tool. It's also used like model to attendance_controller (MVC pattern)
* @author Christian Fasanando <christian1827@gmail.com>
* @author Julio Montoya <gugli100@gmail.com> improvements
* @package chamilo.attendance
*/
/**
* Attendance can be used to instanciate objects or as a library to manage attendances
* @package chamilo.attendance
*/
class Attendance
{
private $session_id;
private $course_id;
private $date_time;
private $name;
private $description;
private $attendance_qualify_title;
private $attendance_weight;
private $course_int_id;
public $category_id;
// constants
const DONE_ATTENDANCE_LOG_TYPE = 'done_attendance_sheet';
const UPDATED_ATTENDANCE_LOG_TYPE = 'updated_attendance_sheet';
const LOCKED_ATTENDANCE_LOG_TYPE = 'locked_attendance_sheet';
public function __construct() {
//$this->course_int_id = api_get_course_int_id();
}
/**
* Get the total number of attendance inside current course and current session
* @see SortableTable#get_total_number_of_items()
*/
static function get_number_of_attendances($active = -1) {
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id);
$course_id = api_get_course_int_id();
$sql = "SELECT COUNT(att.id) AS total_number_of_items FROM $tbl_attendance att
WHERE c_id = $course_id $condition_session ";
if ($active == 1 || $active == 0) {
$sql .= "AND att.active = $active";
}
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->total_number_of_items;
}
/**
* Get attendance list only the id, name and attendance_qualify_max fields
* @param string course db name (optional)
* @param int session id (optional)
* @return array attendances list
*/
function get_attendances_list($course_id = '', $session_id = null) {
// Initializing database table and variables
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$data = array();
if (empty($course_id)) {
$course_id = api_get_course_int_id();
} else {
$course_id = intval($course_id);
}
$session_id = isset($session_id)?intval($session_id):api_get_session_id();
$condition_session = api_get_session_condition($session_id);
// Get attendance data
$sql = "SELECT id, name, attendance_qualify_max
FROM $tbl_attendance
WHERE c_id = $course_id AND active = 1 $condition_session ";
$rs = Database::query($sql);
if (Database::num_rows($rs) > 0) {
while ($row = Database::fetch_array($rs,'ASSOC')) {
$data[$row['id']] = $row;
}
}
return $data;
}
/**
* Get the attendaces to display on the current page (fill the sortable-table)
* @param int offset of first user to recover
* @param int Number of users to get
* @param int Column to sort on
* @param string Order (ASC,DESC)
* @see SortableTable#get_table_data($from)
*/
static function get_attendance_data($from, $number_of_items, $column, $direction) {
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$course_id = api_get_course_int_id();
$session_id = api_get_session_id();
$condition_session = api_get_session_condition($session_id);
$column = intval($column);
$from = intval($from);
$number_of_items = intval($number_of_items);
if (!in_array($direction, array('ASC','DESC'))) {
$direction = 'ASC';
}
$active_plus = '';
if ((isset($_GET['isStudentView']) && $_GET['isStudentView'] == 'true') || !api_is_allowed_to_edit(null, true)) {
$active_plus = 'AND att.active = 1';
}
$sql = "SELECT
att.id AS col0,
att.name AS col1,
att.description AS col2,
att.attendance_qualify_max AS col3,
att.locked AS col4,
att.active AS col5,
att.session_id
FROM $tbl_attendance att
WHERE c_id = $course_id $active_plus $condition_session
ORDER BY col$column $direction LIMIT $from,$number_of_items ";
$res = Database::query($sql);
$attendances = array ();
$param_gradebook = '';
if (isset($_SESSION['gradebook'])) {
$param_gradebook = '&gradebook='.$_SESSION['gradebook'];
}
$user_info = api_get_user_info();
while ($attendance = Database::fetch_row($res)) {
$student_param = '';
if (api_is_drh() && ($_GET['student_id'])) {
$student_param = '&student_id='.Security::remove_XSS($_GET['student_id']);
}
$session_star = '';
if (api_get_session_id() == $attendance[6]) {
$session_star = api_get_session_image(api_get_session_id(), $user_info['status']);
}
if ($attendance[5] == 1) {
if (api_is_allowed_to_edit(null, true)) {
//Link to edit
$attendance[1] = '<a href="index.php?'.api_get_cidreq().'&action=attendance_sheet_list&attendance_id='.$attendance[0].$param_gradebook.$student_param.'">'.$attendance[1].'</a>'.$session_star;
} else {
//Link to view
$attendance[1] = '<a href="index.php?'.api_get_cidreq().'&action=attendance_sheet_list_no_edit&attendance_id='.$attendance[0].$param_gradebook.$student_param.'">'.$attendance[1].'</a>'.$session_star;
}
} else {
$attendance[1] = '<a class="muted" href="index.php?'.api_get_cidreq().'&action=attendance_sheet_list&attendance_id='.$attendance[0].$param_gradebook.$student_param.'">'.$attendance[1].'</a>'.$session_star;
}
if ($attendance[5] == 1) {
$attendance[3] = '<center>'.$attendance[3].'</center>';
}
else {
$attendance[3] = '<center><span class="muted">'.$attendance[3].'</span></center>';
}
$attendance[3] = '<center>'.$attendance[3].'</center>';
if (api_is_allowed_to_edit(null, true)) {
$actions = '';
$actions .= '<center>';
if (api_is_platform_admin()) {
$actions .= '<a href="index.php?'.api_get_cidreq().'&action=attendance_edit&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL).'</a>&nbsp;';
if ($attendance[5] == 1) {
$actions .= '<a href="index.php?'.api_get_cidreq().'&action=attendance_delete&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('visible.png', get_lang('Hide'), array(), ICON_SIZE_SMALL).'</a>';
} else {
$actions .= '<a href="index.php?'.api_get_cidreq().'&action=attendance_restore&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('invisible.png', get_lang('Show'), array(), ICON_SIZE_SMALL).'</a>';
$attendance[2] = '<span class="muted">'.$attendance[2].'</span>';
}
} else {
$is_locked_attendance = self::is_locked_attendance($attendance[0]);
if ($is_locked_attendance) {
$actions .= Display::return_icon('edit_na.png', get_lang('Edit')).'&nbsp;';
$actions .= Display::return_icon('visible.png', get_lang('Hide'));
} else {
$actions .= '<a href="index.php?'.api_get_cidreq().'&action=attendance_edit&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL).'</a>&nbsp;';
$actions .= '<a href="index.php?'.api_get_cidreq().'&action=attendance_delete&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('visible.png', get_lang('Hide'), array(), ICON_SIZE_SMALL).'</a>';
}
}
// display lock/unlock icon
$is_done_all_calendar = self::is_all_attendance_calendar_done($attendance[0]);
if ($is_done_all_calendar) {
$locked = $attendance[4];
if ($locked == 0) {
if (api_is_platform_admin()) {
$message_alert = get_lang('AreYouSureToLockTheAttendance');
} else {
$message_alert = get_lang('UnlockMessageInformation');
}
$actions .= '&nbsp;<a onclick="javascript:if(!confirm(\''.$message_alert.'\')) return false;" href="index.php?'.api_get_cidreq().'&action=lock_attendance&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('unlock.png', get_lang('LockAttendance')).'</a>';
} else {
if (api_is_platform_admin()) {
$actions .= '&nbsp;<a onclick="javascript:if(!confirm(\''.get_lang('AreYouSureToUnlockTheAttendance').'\')) return false;" href="index.php?'.api_get_cidreq().'&action=unlock_attendance&attendance_id='.$attendance[0].$param_gradebook.'">'.Display::return_icon('locked.png', get_lang('UnlockAttendance')).'</a>';
} else {
$actions .= '&nbsp;'.Display::return_icon('locked_na.png', get_lang('LockedAttendance'));
}
}
}
$actions .= '</center>';
$attendances[] = array($attendance[0], $attendance[1], $attendance[2], $attendance[3],$actions);
} else {
$attendance[0] = '&nbsp;';
$attendances[] = array($attendance[0], $attendance[1], $attendance[2], $attendance[3]);
}
}
return $attendances;
}
/**
* Get the attendaces by id to display on the current page
* @param int attendance id
* @return array attendance data
*/
public function get_attendance_by_id($attendance_id) {
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$attendance_data = array();
$sql = "SELECT * FROM $tbl_attendance WHERE c_id = $course_id AND id = '$attendance_id'";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
while ($row = Database::fetch_array($res)) {
$attendance_data = $row;
}
}
return $attendance_data;
}
/**
* Add attendaces sheet inside table. This is the *list of* dates, not
* a specific date in itself.
* @param bool true for adding link in gradebook or false otherwise (optional)
* @return int last attendance id
*/
public function attendance_add($link_to_gradebook = false) {
global $_course;
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$table_link = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
$session_id = api_get_session_id();
$user_id = api_get_user_id();
$course_code = api_get_course_id();
$course_id = api_get_course_int_id();
$title_gradebook= Database::escape_string($this->attendance_qualify_title);
$value_calification = 0;
$weight_calification = floatval($this->attendance_weight);
$sql = "INSERT INTO $tbl_attendance SET
c_id = $course_id,
name ='".Database::escape_string($this->name)."',
description = '".Database::escape_string($this->description)."',
attendance_qualify_title = '$title_gradebook',
attendance_weight = '$weight_calification',
session_id = '$session_id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
$last_id = 0;
if (!empty($affected_rows)) {
// save inside item property table
$last_id = Database::insert_id();
api_item_property_update($_course, TOOL_ATTENDANCE, $last_id,"AttendanceAdded", $user_id);
}
// add link to gradebook
if ($link_to_gradebook && !empty($this->category_id)) {
$description = '';
$link_info = is_resource_in_course_gradebook($course_code,7,$last_id,$session_id);
$link_id = $link_info['id'];
if (!$link_info) {
add_resource_to_course_gradebook($this->category_id, $course_code, 7, $last_id, $title_gradebook,$weight_calification,$value_calification,$description,1,$session_id);
} else {
Database::query('UPDATE '.$table_link.' SET weight='.$weight_calification.' WHERE id='.$link_id.'');
}
}
return $last_id;
}
/**
* edit attendaces inside table
* @param int attendance id
* @param bool true for adding link in gradebook or false otherwise (optional)
* @return int last id
*/
public function attendance_edit($attendance_id, $link_to_gradebook = false) {
$_course = api_get_course_info();
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$table_link = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
$session_id = api_get_session_id();
$user_id = api_get_user_id();
$attendance_id = intval($attendance_id);
$course_code = api_get_course_id();
$course_id = api_get_course_int_id();
$title_gradebook = Database::escape_string($this->attendance_qualify_title);
$value_calification = 0;
$weight_calification= floatval($this->attendance_weight);
if (!empty($attendance_id)) {
$sql = "UPDATE $tbl_attendance
SET name ='".Database::escape_string($this->name)."',
description = '".Database::escape_string($this->description)."',
attendance_qualify_title = '".$title_gradebook."',
attendance_weight = '".$weight_calification."'
WHERE c_id = $course_id AND id = '$attendance_id'";
Database::query($sql);
api_item_property_update($_course, TOOL_ATTENDANCE, $attendance_id,"AttendanceUpdated", $user_id);
// add link to gradebook
if ($link_to_gradebook && !empty($this->category_id)) {
$description = '';
$link_id = is_resource_in_course_gradebook($course_code, 7, $attendance_id, $session_id);
if (!$link_id) {
add_resource_to_course_gradebook($this->category_id, $course_code, 7, $attendance_id, $title_gradebook,$weight_calification,$value_calification,$description,1,$session_id);
} else {
Database::query('UPDATE '.$table_link.' SET weight='.$weight_calification.' WHERE id='.$link_id.'');
}
}
return $attendance_id;
}
return null;
}
/**
* Restore attendance
* @param int|array one or many attendances id
* @return int affected rows
*/
public function attendance_restore($attendance_id) {
global $_course;
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$user_id = api_get_user_id();
$course_id = api_get_course_int_id();
if (is_array($attendance_id)) {
foreach ($attendance_id as $id) {
$id = intval($id);
$sql = "UPDATE $tbl_attendance SET active = 1 WHERE c_id = $course_id AND id = '$id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
// update row item property table
api_item_property_update($_course, TOOL_ATTENDANCE, $id,"restore", $user_id);
}
}
} else {
$attendance_id = intval($attendance_id);
$sql = "UPDATE $tbl_attendance SET active = 1 WHERE c_id = $course_id AND id = '$attendance_id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
// update row item property table
api_item_property_update($_course, TOOL_ATTENDANCE, $attendance_id,"restore", $user_id);
}
}
return $affected_rows;
}
/**
* delete attendaces
* @param int|array one or many attendances id
* @return int affected rows
*/
public function attendance_delete($attendance_id) {
global $_course;
$tbl_attendance = Database :: get_course_table(TABLE_ATTENDANCE);
$user_id = api_get_user_id();
$course_id = api_get_course_int_id();
if (is_array($attendance_id)) {
foreach ($attendance_id as $id) {
$id = intval($id);
$sql = "UPDATE $tbl_attendance SET active = 0 WHERE c_id = $course_id AND id = '$id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
// update row item property table
api_item_property_update($_course, TOOL_ATTENDANCE, $id,"delete", $user_id);
}
}
} else {
$attendance_id = intval($attendance_id);
$sql = "UPDATE $tbl_attendance SET active = 0 WHERE c_id = $course_id AND id = '$attendance_id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
if (!empty($affected_rows)) {
// update row item property table
api_item_property_update($_course, TOOL_ATTENDANCE, $attendance_id,"delete", $user_id);
}
}
return $affected_rows;
}
/**
* Lock or unlock an attendance
* @param int attendance id
* @param bool True to lock or false otherwise
*/
public function lock_attendance($attendance_id, $lock = true) {
$tbl_attendance = Database::get_course_table(TABLE_ATTENDANCE);
$course_id = api_get_course_int_id();
$attendance_id = intval($attendance_id);
$locked = ($lock)?1:0;
$upd = "UPDATE $tbl_attendance SET locked = $locked WHERE c_id = $course_id AND id = $attendance_id";
Database::query($upd);
$affected_rows = Database::affected_rows();
if ($affected_rows && $lock) {
//save attendance sheet log
$lastedit_date = Date('Y-m-d H:i:s');
$lastedit_type = self::LOCKED_ATTENDANCE_LOG_TYPE;
$lastedit_user_id = api_get_user_id();
$save_attendance_log = $this->save_attendance_sheet_log($attendance_id, $lastedit_date, $lastedit_type, $lastedit_user_id);
}
return $affected_rows;
}
/**
* Get registered users inside current course
* @param int attendance id for showing attendance result field (optional)
* @return array users data
*/
public function get_users_rel_course($attendance_id = 0) {
$current_session_id = api_get_session_id();
$current_course_id = api_get_course_id();
if (!empty($current_session_id)) {
$a_course_users = CourseManager :: get_user_list_from_course_code($current_course_id, $current_session_id,'','lastname');
} else {
$a_course_users = CourseManager :: get_user_list_from_course_code($current_course_id, 0, '','lastname');
}
// get registered users inside current course
$a_users = array();
foreach ($a_course_users as $key =>$user_data) {
$value = array();
$uid = $user_data['user_id'];
$status = $user_data['status'];
$user_status_in_session = null;
$user_status_in_course = null;
if (api_get_session_id()) {
$user_status_in_session = SessionManager::get_user_status_in_course_session($uid, $current_course_id, $current_session_id);
} else {
$user_status_in_course = CourseManager::get_user_in_course_status($uid, $current_course_id);
}
//Not taking into account DRH or COURSEMANAGER
if ($uid <= 1 || $status == DRH || $user_status_in_course == COURSEMANAGER || $user_status_in_session == 2) continue;
if (!empty($attendance_id)) {
$user_faults = $this->get_faults_of_user($uid, $attendance_id);
$value['attendance_result'] = $user_faults['faults'].'/'.$user_faults['total'].' ('.$user_faults['faults_porcent'].'%)';
$value['result_color_bar'] = $user_faults['color_bar'];
}
// user's picture
$image_path = UserManager::get_user_picture_path_by_id($uid, 'web', false);
$user_profile = UserManager::get_picture_user($uid, $image_path['file'], 22, USER_IMAGE_SIZE_SMALL, ' width="22" height="22" ');
if (!empty($image_path['file'])) {
$photo = '<center><a class="thickbox" href="'.$image_path['dir'].$image_path['file'].'" ><img src="'.$user_profile['file'].'" '.$user_profile['style'].' alt="'.api_get_person_name($user_data['firstname'], $user_data['lastname']).'" title="'.api_get_person_name($user_data['firstname'], $user_data['lastname']).'" /></a></center>';
} else {
$photo = '<center><img src="'.$user_profile['file'].'" '.$user_profile['style'].' alt="'.api_get_person_name($user_data['firstname'], $user_data['lastname']).'" title="'.api_get_person_name($user_data['firstname'], $user_data['lastname']).'" /></center>';
}
$value['photo'] = $photo;
$value['firstname'] = $user_data['firstname'];
$value['lastname'] = $user_data['lastname'];
$value['username'] = $user_data['username'];
$value['user_id'] = $uid;
//Sending only 5 items in the array instead of 60
$a_users[$key] = $value;
}
return $a_users;
}
/**
* add attendaces sheet inside table
* @param int attendance calendar id
* @param array present users during current class
* @param int attendance id
* @return int affected rows
*/
public function attendance_sheet_add($calendar_id,$users_present,$attendance_id) {
$tbl_attendance_sheet = Database::get_course_table(TABLE_ATTENDANCE_SHEET);
$tbl_attendance_calendar= Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$tbl_attendance = Database::get_course_table(TABLE_ATTENDANCE);
$calendar_id = intval($calendar_id);
$attendance_id = intval($attendance_id);
$users = $this->get_users_rel_course();
$course_id = api_get_course_int_id();
$user_ids = array_keys($users);
$users_absent = array_diff($user_ids,$users_present);
$affected_rows = 0;
// get last edit type
$calendar_data = $this->get_attendance_calendar_by_id($calendar_id);
$lastedit_type = self::DONE_ATTENDANCE_LOG_TYPE;
if ($calendar_data['done_attendance']) {
$lastedit_type = self::UPDATED_ATTENDANCE_LOG_TYPE;
}
// save users present in class
foreach ($users_present as $user_present) {
$uid = intval($user_present);
// check if user already was registered with the $calendar_id
$sql = "SELECT user_id FROM $tbl_attendance_sheet WHERE c_id = $course_id AND user_id='$uid' AND attendance_calendar_id = '$calendar_id'";
$rs = Database::query($sql);
if (Database::num_rows($rs) == 0) {
$sql = "INSERT INTO $tbl_attendance_sheet SET
c_id = $course_id,
user_id = '$uid',
attendance_calendar_id = '$calendar_id',
presence = 1";
Database::query($sql);
$affected_rows += Database::affected_rows();
} else {
$sql = "UPDATE $tbl_attendance_sheet SET presence = 1 WHERE c_id = $course_id AND user_id ='$uid' AND attendance_calendar_id = '$calendar_id'";
Database::query($sql);
$affected_rows += Database::affected_rows();
}
}
// save users absent in class
foreach ($users_absent as $user_absent) {
$uid = intval($user_absent);
// check if user already was registered with the $calendar_id
$sql = "SELECT user_id FROM $tbl_attendance_sheet WHERE c_id = $course_id AND user_id='$uid' AND attendance_calendar_id = '$calendar_id'";
$rs = Database::query($sql);
if (Database::num_rows($rs) == 0) {
$sql = "INSERT INTO $tbl_attendance_sheet SET
c_id = $course_id,
user_id ='$uid',
attendance_calendar_id = '$calendar_id',
presence = 0";
Database::query($sql);
$affected_rows += Database::affected_rows();
} else {
$sql = "UPDATE $tbl_attendance_sheet SET presence = 0 WHERE c_id = $course_id AND user_id ='$uid' AND attendance_calendar_id = '$calendar_id'";
Database::query($sql);
$affected_rows += Database::affected_rows();
}
}
// update done_attendance inside attendance calendar table
$sql = "UPDATE $tbl_attendance_calendar SET done_attendance = 1 WHERE c_id = $course_id AND id = '$calendar_id'";
Database::query($sql);
// save users' results
$this->update_users_results($user_ids, $attendance_id);
if ($affected_rows) {
//save attendance sheet log
$lastedit_date = Date('Y-m-d H:i:s');
$lastedit_user_id = api_get_user_id();
$calendar_date_value = $calendar_data['date_time'];
$save_attendance_log = $this->save_attendance_sheet_log($attendance_id, $lastedit_date, $lastedit_type, $lastedit_user_id, $calendar_date_value);
}
return $affected_rows;
}
/**
* update users' attendance results
* @param array registered users inside current course
* @param int attendance id
* @return void
*/
public function update_users_results($user_ids, $attendance_id) {
$tbl_attendance_sheet = Database::get_course_table(TABLE_ATTENDANCE_SHEET);
$tbl_attendance_calendar= Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$tbl_attendance = Database::get_course_table(TABLE_ATTENDANCE);
$course_id = api_get_course_int_id();
$attendance_id = intval($attendance_id);
// fill results about presence of students
$attendance_calendar = $this->get_attendance_calendar($attendance_id);
$calendar_ids = array();
// get all dates from calendar by current attendance
foreach ($attendance_calendar as $cal) {
$calendar_ids[] = $cal['id'];
}
// get count of presences by users inside current attendance and save like results
$count_presences = 0;
if (count($user_ids) > 0) {
foreach ($user_ids as $uid) {
$count_presences = 0;
if (count($calendar_ids) > 0) {
$sql = "SELECT count(presence) as count_presences FROM $tbl_attendance_sheet
WHERE c_id = $course_id AND user_id = '$uid' AND attendance_calendar_id IN(".implode(',',$calendar_ids).") AND presence = 1";
$rs_count = Database::query($sql);
$row_count = Database::fetch_array($rs_count);
$count_presences = $row_count['count_presences'];
}
// save results
$sql = "SELECT id FROM $tbl_attendance_result WHERE c_id = $course_id AND user_id='$uid' AND attendance_id='$attendance_id'";
$rs_check_result = Database::query($sql);
if (Database::num_rows($rs_check_result) > 0) {
// update result
$sql = "UPDATE $tbl_attendance_result SET
score='$count_presences'
WHERE c_id = $course_id AND user_id='$uid' AND attendance_id='$attendance_id'";
Database::query($sql);
} else {
// insert new result
$sql = "INSERT INTO $tbl_attendance_result SET
c_id = $course_id ,
user_id = '$uid',
attendance_id = '$attendance_id',
score = '$count_presences'";
Database::query($sql);
}
}
}
// update attendance qualify max
$count_done_calendar = self::get_done_attendance_calendar($attendance_id);
$sql = "UPDATE $tbl_attendance SET attendance_qualify_max='$count_done_calendar' WHERE c_id = $course_id AND id = '$attendance_id'";
Database::query($sql);
}
/**
* update attendance_sheet_log table, is used as history of an attendance sheet
* @param int Attendance id
* @param string Last edit datetime
* @param string Event type ('locked_attendance', 'done_attendance_sheet' ...)
* @param int Last edit user id
* @param string Calendar datetime value (optional, when event type is 'done_attendance_sheet')
* @return int Affected rows
*/
public function save_attendance_sheet_log($attendance_id, $lastedit_date, $lastedit_type, $lastedit_user_id, $calendar_date_value = null) {
$course_id = api_get_course_int_id();
// define table
$tbl_attendance_sheet_log = Database::get_course_table(TABLE_ATTENDANCE_SHEET_LOG);
// protect data
$attendance_id = intval($attendance_id);
$lastedit_date = Database::escape_string($lastedit_date);
$lastedit_type = Database::escape_string($lastedit_type);
$lastedit_user_id = intval($lastedit_user_id);
if (isset($calendar_date_value)) {
$calendar_date_value = Database::escape_string($calendar_date_value);
} else {
$calendar_date_value = '';
}
// save data
$ins = "INSERT INTO $tbl_attendance_sheet_log(c_id, attendance_id, lastedit_date, lastedit_type, lastedit_user_id, calendar_date_value)
VALUES($course_id, $attendance_id, '$lastedit_date', '$lastedit_type', $lastedit_user_id, '$calendar_date_value')";
Database::query($ins);
return Database::affected_rows();
}
/**
* Get number of done attendances inside current sheet
* @param int attendance id
* @return int number of done attendances
*/
public static function get_done_attendance_calendar($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT count(done_attendance) as count
FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND attendance_id = '$attendance_id' AND done_attendance=1";
$rs = Database::query($sql);
$row = Database::fetch_array($rs);
$count = $row['count'];
return $count;
}
/**
* Get results of faults (absents) by user
* @param int user id
* @param int attendance id
* @return array results containing number of faults, total done attendance, porcent of faults and color depend on result (red, orange)
*/
public function get_faults_of_user($user_id, $attendance_id) {
// initializing database table and variables
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$user_id = intval($user_id);
$attendance_id = intval($attendance_id);
$results = array();
$attendance_data = $this->get_attendance_by_id($attendance_id);
$calendar_count = self::get_number_of_attendance_calendar($attendance_id);
$total_done_attendance = $attendance_data['attendance_qualify_max'];
$attendance_user_score = $this->get_user_score($user_id, $attendance_id);
//This is the main change of the BT#1381
//$total_done_attendance = $calendar_count;
// calculate results
$faults = $total_done_attendance - $attendance_user_score;
$faults = $faults > 0 ? $faults:0;
$faults_porcent = $calendar_count > 0 ?round(($faults*100)/$calendar_count,0):0;
$results['faults'] = $faults;
$results['total'] = $calendar_count;
$results['faults_porcent'] = $faults_porcent;
$color_bar = '';
if ($faults_porcent > 25 ) {
$color_bar = '#f28989';
} else if ($faults_porcent > 10) {
$color_bar = '#F90';
}
$results['color_bar'] = $color_bar;
return $results;
}
/**
* Get results of faults average for all courses by user
* @param int user id
* @return array results containing number of faults, total done attendance, porcent of faults and color depend on result (red, orange)
*/
public function get_faults_average_inside_courses($user_id) {
// get all courses of current user
$courses = CourseManager::get_courses_list_by_user_id($user_id, true);
$user_id = intval($user_id);
$results = array();
$total_faults = $total_weight = $porcent = 0;
foreach ($courses as $course) {
//$course_code = $course['code'];
//$course_info = api_get_course_info($course_code);
$course_id = $course['real_id'];
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$attendances_by_course = $this->get_attendances_list($course_id);
foreach ($attendances_by_course as $attendance) {
// get total faults and total weight
$total_done_attendance = $attendance['attendance_qualify_max'];
$sql = "SELECT score FROM $tbl_attendance_result
WHERE c_id = $course_id AND user_id = $user_id AND attendance_id = ".$attendance['id'];
$rs = Database::query($sql);
$score = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_array($rs);
$score = $row['score'];
}
$faults = $total_done_attendance-$score;
$faults = $faults > 0 ? $faults:0;
$total_faults += $faults;
$total_weight += $total_done_attendance;
}
}
$porcent = $total_weight > 0 ?round(($total_faults*100)/$total_weight,0):0;
$results['faults'] = $total_faults;
$results['total'] = $total_weight;
$results['porcent'] = $porcent;
return $results;
}
/**
* Get results of faults average by course
* @param int user id
* @param int Session id (optional)
* @return array results containing number of faults, total done attendance, porcent of faults and color depend on result (red, orange)
*/
public function get_faults_average_by_course($user_id, $course_code, $session_id = null) {
// Database tables and variables
$course_info = api_get_course_info($course_code);
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$user_id = intval($user_id);
$results = array();
$total_faults = $total_weight = $porcent = 0;
$attendances_by_course = $this->get_attendances_list($course_info['real_id'], $session_id);
foreach ($attendances_by_course as $attendance) {
// Get total faults and total weight
$total_done_attendance = $attendance['attendance_qualify_max'];
$sql = "SELECT score FROM $tbl_attendance_result WHERE c_id = {$course_info['real_id']} AND user_id=$user_id AND attendance_id=".$attendance['id'];
$rs = Database::query($sql);
$score = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_array($rs);
$score = $row['score'];
}
$faults = $total_done_attendance-$score;
$faults = $faults > 0 ? $faults:0;
$total_faults += $faults;
$total_weight += $total_done_attendance;
}
$porcent = $total_weight > 0 ?round(($total_faults*100)/$total_weight,0):0;
$results['faults'] = $total_faults;
$results['total'] = $total_weight;
$results['porcent'] = $porcent;
return $results;
}
/**
* Get registered users' attendance sheet inside current course
* @param int attendance id
* @param int user id for showing data for only one user (optional)
* @return array users attendance sheet data
*/
public function get_users_attendance_sheet($attendance_id, $user_id = 0) {
$tbl_attendance_sheet = Database::get_course_table(TABLE_ATTENDANCE_SHEET);
$tbl_attendance_calendar= Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_calendar = $this->get_attendance_calendar($attendance_id);
$calendar_ids = array();
// get all dates from calendar by current attendance
foreach ($attendance_calendar as $cal) {
$calendar_ids[] = $cal['id'];
}
$course_id = api_get_course_int_id();
$data = array();
if (empty($user_id)) {
// get all registered users inside current course
$users = $this->get_users_rel_course();
$user_ids = array_keys($users);
if (count($calendar_ids) > 0 && count($user_ids) > 0) {
foreach ($user_ids as $uid) {
$sql = "SELECT * FROM $tbl_attendance_sheet
WHERE c_id = $course_id AND user_id = '$uid' AND attendance_calendar_id IN(".implode(',',$calendar_ids).") ";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
while ($row = Database::fetch_array($res)) {
$data[$uid][$row['attendance_calendar_id']]['presence'] = $row['presence'];
}
}
}
}
} else {
// Get attendance for current user
$user_id = intval($user_id);
if (count($calendar_ids) > 0) {
$sql = "SELECT cal.date_time, att.presence
FROM $tbl_attendance_sheet att
INNER JOIN $tbl_attendance_calendar cal
ON cal.id = att.attendance_calendar_id
WHERE att.c_id = $course_id AND
cal.c_id = $course_id AND
att.user_id = '$user_id' AND
att.attendance_calendar_id IN(".implode(',',$calendar_ids).")
ORDER BY date_time";
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
while ($row = Database::fetch_array($res)) {
$row['date_time'] = api_convert_and_format_date($row['date_time'], null, date_default_timezone_get());
$data[$user_id][] = $row;
}
}
}
}
return $data;
}
/**
* Get next attendance calendar without presences (done attendances)
* @param int attendance id
* @return int attendance calendar id
*/
public function get_next_attendance_calendar_id($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT id FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND attendance_id = '$attendance_id' AND done_attendance = 0 ORDER BY date_time limit 1";
$rs = Database::query($sql);
$next_calendar_id = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_array($rs);
$next_calendar_id = $row['id'];
}
return $next_calendar_id;
}
/**
* Get next attendance calendar datetime without presences (done attendances)
* @param int attendance id
* @return int UNIX time format datetime
*/
public function get_next_attendance_calendar_datetime($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$course_id = api_get_course_int_id();
$attendance_id = intval($attendance_id);
$sql = "SELECT id, date_time FROM $tbl_attendance_calendar WHERE c_id = $course_id AND attendance_id = '$attendance_id' AND done_attendance = 0 ORDER BY date_time limit 1";
$rs = Database::query($sql);
$next_calendar_datetime = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_array($rs);
$next_calendar_datetime = api_get_local_time($row['date_time']);
}
return $next_calendar_datetime;
}
/**
* Get user' score from current attendance
* @param int user id
* @param int attendance id
* @return int score
*/
public function get_user_score($user_id, $attendance_id) {
$tbl_attendance_result = Database::get_course_table(TABLE_ATTENDANCE_RESULT);
$user_id = intval($user_id);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT score FROM $tbl_attendance_result WHERE c_id = $course_id AND user_id='$user_id' AND attendance_id='$attendance_id'";
$rs = Database::query($sql);
$score = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_array($rs);
$score = $row['score'];
}
return $score;
}
/**
* Get attendance calendar data by id
* @param int attendance calendar id
* @return array attendance calendar data
*/
public function get_attendance_calendar_by_id($calendar_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$calendar_id = intval($calendar_id);
$course_id = api_get_course_int_id();
$sql = "SELECT * FROM $tbl_attendance_calendar WHERE c_id = $course_id AND id = '$calendar_id' ";
$rs = Database::query($sql);
$data = array();
if (Database::num_rows($rs) > 0) {
while ($row = Database::fetch_array($rs)) {
$row['date_time'] = api_get_local_time($row['date_time']);
$data = $row;
}
}
return $data;
}
/**
* Get all attendance calendar data inside current attendance
* @param int attendance id
* @return array attendance calendar data
*/
public function get_attendance_calendar($attendance_id, $type = 'all', $calendar_id = null) {
global $dateFormatShort, $timeNoSecFormat;
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT * FROM $tbl_attendance_calendar WHERE c_id = $course_id AND attendance_id = '$attendance_id' ";
if (!in_array($type, array('today', 'all', 'all_done', 'all_not_done','calendar_id'))) {
$type = 'all';
}
switch ($type) {
case 'calendar_id':
$calendar_id = intval($calendar_id);
if (!empty($calendar_id)) {
$sql.= " AND id = $calendar_id";
}
break;
case 'today':
//$sql .= ' AND DATE_FORMAT(date_time,"%d-%m-%Y") = DATE_FORMAT("'.api_get_utc_datetime().'", "%d-%m-%Y" )';
break;
case 'all_done':
$sql .= " AND done_attendance = 1 ";
break;
case 'all_not_done':
$sql .= " AND done_attendance = 0 ";
break;
case 'all':
default:
break;
}
$sql .= " ORDER BY date_time ";
$rs = Database::query($sql);
$data = array();
if (Database::num_rows($rs) > 0) {
while ($row = Database::fetch_array($rs,'ASSOC')) {
$row['db_date_time'] = $row['date_time'];
$row['date_time'] = api_get_local_time($row['date_time']);
$row['date'] = api_format_date($row['date_time'], DATE_FORMAT_SHORT);
$row['time'] = api_format_date($row['date_time'], TIME_NO_SEC_FORMAT);
if ($type == 'today') {
if (date('d-m-Y', api_strtotime($row['date_time'], 'UTC')) == date('d-m-Y', time())) {
$data[] = $row;
}
} else {
$data[] = $row;
}
}
}
return $data;
}
/**
* Get number of attendance calendar inside current attendance
* @param int attendance id
* @return int number of dates in attendance calendar
*/
public static function get_number_of_attendance_calendar($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT count(id) FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND attendance_id = '$attendance_id'";
$rs = Database::query($sql);
$row = Database::fetch_row($rs);
$count = $row[0];
return $count;
}
/**
* Get count dates inside attendance calendar by attendance id
* @param int attendance id
* @return int count of dates
*/
public static function get_count_dates_inside_attendance_calendar($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
$sql = "SELECT count(id) FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND attendance_id = '$attendance_id'";
$rs = Database::query($sql);
$count = 0;
if (Database::num_rows($rs) > 0) {
$row = Database::fetch_row($rs);
$count = $row[0];
}
return $count;
}
/**
* check if all calendar of an attendance is done
* @param int attendance id
* @return bool True if all calendar is done, otherwise false
*/
public static function is_all_attendance_calendar_done($attendance_id) {
$attendance_id = intval($attendance_id);
$done_calendar = self::get_done_attendance_calendar($attendance_id);
$count_dates_in_calendar = self::get_count_dates_inside_attendance_calendar($attendance_id);
$number_of_dates = self::get_number_of_attendance_calendar($attendance_id);
$result = false;
if ($number_of_dates && (intval($count_dates_in_calendar) == intval($done_calendar))) {
$result = true;
}
return $result;
}
/**
* check if an attendance is locked
* @param int attendance id
* @param bool
*/
public static function is_locked_attendance($attendance_id) {
//use gradebook lock
$result = api_resource_is_locked_by_gradebook($attendance_id, LINK_ATTENDANCE);
return $result;
}
/**
* Add new datetime inside attendance calendar table
* @param int attendance id
* @return int affected rows
*/
public function attendance_calendar_add($attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$affected_rows = 0;
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
// check if datetime already exists inside the table
$sql = "SELECT id FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND date_time='".Database::escape_string($this->date_time)."' AND attendance_id = '$attendance_id'";
$rs = Database::query($sql);
if (Database::num_rows($rs) == 0) {
$sql = "INSERT INTO $tbl_attendance_calendar SET
c_id = $course_id,
date_time = '".Database::escape_string($this->date_time)."',
attendance_id = '$attendance_id'";
Database::query($sql);
$affected_rows = Database::affected_rows();
}
// update locked attendance
$is_all_calendar_done = self::is_all_attendance_calendar_done($attendance_id);
if (!$is_all_calendar_done) {
$unlock = self::lock_attendance($attendance_id, false);
} else {
$unlock = self::lock_attendance($attendance_id);
}
return $affected_rows;
}
/**
* save repeated date inside attendance calendar table
* @param int attendance id
* @param int start date in tms
* @param int end date in tms
* @param string repeat type daily, weekly, monthlyByDate
*/
public function attendance_repeat_calendar_add($attendance_id, $start_date, $end_date, $repeat_type) {
$attendance_id = intval($attendance_id);
// save start date
$datetimezone = api_get_utc_datetime($start_date);
$this->set_date_time($datetimezone);
$res = $this->attendance_calendar_add($attendance_id);
//86400 = 24 hours in seconds
//604800 = 1 week in seconds
// Saves repeated dates
switch($repeat_type) {
case 'daily':
$j = 1;
for ($i = $start_date + 86400; ($i <= $end_date); $i += 86400) {
//$datetimezone = api_get_utc_date_add(api_get_utc_datetime($start_date), 0 , 0, $j); //to support europe timezones
$datetimezone = api_get_utc_datetime($i);
$this->set_date_time($datetimezone);
$res = $this->attendance_calendar_add($attendance_id);
$j++;
}
break;
exit;
case 'weekly':
$j = 1;
for ($i = $start_date + 604800; ($i <= $end_date); $i += 604800) {
$datetimezone = api_get_utc_datetime($i);
//$datetimezone = api_get_utc_date_add(api_get_utc_datetime($start_date), 0 , 0, $j*7); //to support europe timezones
$this->set_date_time($datetimezone);
$res = $this->attendance_calendar_add($attendance_id);
$j++;
}
break;
case 'monthlyByDate':
$j = 1;
//@todo fix bug with february
for ($i = $start_date + 2419200; ($i <= $end_date); $i += 2419200) {
$datetimezone = api_get_utc_datetime($i);
//$datetimezone = api_get_utc_date_add(api_get_utc_datetime($start_date), 0 , $j); //to support europe timezones
$this->set_date_time($datetimezone);
$res = $this->attendance_calendar_add($attendance_id);
$j++;
}
break;
}
}
/**
* Adds x months to a UNIX timestamp
* @param int The timestamp
* @param int The number of years to add
* @return int The new timestamp
*/
private function add_month($timestamp, $num=1) {
$values = api_get_utc_datetime($timestamp);
$values = str_replace(array(':','-',' '), '/', $values);
list($y, $m, $d, $h, $n, $s) = split('/',$values);
if($m+$num>12) {
$y += floor($num/12);
$m += $num%12;
} else {
$m += $num;
}
//date_default_timezone_set('UTC');
// return mktime($h, $n, $s, $m, $d, $y);
$result = api_strtotime($y.'-'.$m.'-'.$d.' '.$h.':'.$n.':'.$s, 'UTC');
if (!empty($result)) {
return $result;
}
return false;
}
/**
* edit a datetime inside attendance calendar table
* @param int attendance calendar id
* @param int attendance id
* @return int affected rows
*/
public function attendance_calendar_edit($calendar_id, $attendance_id) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$affected_rows = 0;
$attendance_id = intval($attendance_id);
$course_id = api_get_course_int_id();
// check if datetime already exists inside the table
$sql = "SELECT id FROM $tbl_attendance_calendar
WHERE c_id = $course_id AND date_time = '".Database::escape_string($this->date_time)."' AND attendance_id = '$attendance_id'";
$rs = Database::query($sql);
if (Database::num_rows($rs) == 0) {
$sql = "UPDATE $tbl_attendance_calendar SET date_time='".Database::escape_string($this->date_time)."' WHERE c_id = $course_id AND id = '".intval($calendar_id)."'";
Database::query($sql);
$affected_rows = Database::affected_rows();
}
// update locked attendance
$is_all_calendar_done = self::is_all_attendance_calendar_done($attendance_id);
if (!$is_all_calendar_done) {
$unlock = self::lock_attendance($attendance_id, false);
} else {
$unlock = self::lock_attendance($attendance_id);
}
return $affected_rows;
}
/**
* delete a datetime from attendance calendar table
* @param int attendance calendar id
* @param int attendance id
* @param bool true for removing all calendar inside current attendance, false for removing by calendar id
* @return int affected rows
*/
public function attendance_calendar_delete($calendar_id, $attendance_id , $all_delete = false) {
$tbl_attendance_calendar = Database::get_course_table(TABLE_ATTENDANCE_CALENDAR);
$tbl_attendance_sheet = Database::get_course_table(TABLE_ATTENDANCE_SHEET);
$session_id = api_get_session_id();
$attendance_id = intval($attendance_id);
// get all registered users inside current course
$users = $this->get_users_rel_course();
$user_ids = array_keys($users);
$course_id = api_get_course_int_id();
if ($all_delete) {
$attendance_calendar = $this->get_attendance_calendar($attendance_id);
$calendar_ids = array();
// get all dates from calendar by current attendance
if (!empty($attendance_calendar)) {
foreach ($attendance_calendar as $cal) {
// delete all data from attendance sheet
$sql = "DELETE FROM $tbl_attendance_sheet WHERE c_id = $course_id AND attendance_calendar_id = '".intval($cal['id'])."'";
Database::query($sql);
// delete data from attendance calendar
$sql = "DELETE FROM $tbl_attendance_calendar WHERE c_id = $course_id AND id = '".intval($cal['id'])."'";
Database::query($sql);
}
}
} else {
// delete just one row from attendance sheet by the calendar id
$sql = "DELETE FROM $tbl_attendance_sheet WHERE c_id = $course_id AND attendance_calendar_id = '".intval($calendar_id)."'";
Database::query($sql);
// delete data from attendance calendar
$sql = "DELETE FROM $tbl_attendance_calendar WHERE c_id = $course_id AND id = '".intval($calendar_id)."'";
Database::query($sql);
}
$affected_rows = Database::affected_rows();
// update users' results
$this->update_users_results($user_ids, $attendance_id);
return $affected_rows;
}
/**
* buid a string datetime from array
* @param array array containing data e.g: $array('Y'=>'2010', 'F' => '02', 'd' => '10', 'H' => '12', 'i' => '30')
* @return string date and time e.g: '2010-02-10 12:30:00'
*/
public function build_datetime_from_array($array) {
return return_datetime_from_array($array);
}
/** Setters for fields of attendances tables **/
public function set_session_id($session_id) {
$this->session_id = $session_id;
}
public function set_course_id($course_id) {
$this->course_id = $course_id;
}
public function set_date_time($datetime) {
$this->date_time = $datetime;
}
public function set_name($name) {
$this->name = $name;
}
public function set_description($description) {
$this->description = $description;
}
public function set_attendance_qualify_title($attendance_qualify_title) {
$this->attendance_qualify_title = $attendance_qualify_title;
}
public function set_attendance_weight($attendance_weight) {
$this->attendance_weight = $attendance_weight;
}
/** Getters for fields of attendances tables **/
public function get_session_id() {
return $this->session_id;
}
public function get_course_id() {
return $this->course_id;
}
public function get_date_time() {
return $this->date_time;
}
public function get_name($name) {
return $this->name;
}
public function get_description($description) {
return $this->description;
}
public function get_attendance_qualify_title($attendance_qualify_title) {
return $this->attendance_qualify_title;
}
public function get_attendance_weight($attendance_weight) {
return $this->attendance_weight;
}
}