<?php
/**
* This file is part of student block plugin for dashboard,
* it should be required inside dashboard controller for showing it into dashboard interface from plattform
* @package chamilo.dashboard
* @author Christian Fasanando
*/
/**
* This class is used like controller for student block plugin,
* the class name must be registered inside path.info file (e.g: controller = "BlockStudent"), so dashboard controller will be instantiate it
* @package chamilo.dashboard
*/
class BlockStudent extends Block
{
private $user_id;
private $students;
private $path;
private $permission = array(DRH);
/**
* Constructor
*/
public function __construct ($user_id)
{
$this->user_id = $user_id;
$this->path = 'block_student';
if ($this->is_block_visible_for_user($user_id)) {
$this->students = UserManager::get_users_followed_by_drh($user_id, STUDENT);
}
}
/**
* This method check if a user is allowed to see the block inside dashboard interface
* @param int User id
* @return bool Is block visible for user
*/
public function is_block_visible_for_user($user_id)
{
$user_info = api_get_user_info($user_id);
$user_status = $user_info['status'];
$is_block_visible_for_user = false;
if (UserManager::is_admin($user_id) || in_array($user_status, $this->permission)) {
$is_block_visible_for_user = true;
}
return $is_block_visible_for_user;
}
/**
* This method return content html containing information about students and its position for showing it inside dashboard interface
* it's important to use the name 'get_block' for beeing used from dashboard controller
* @return array column and content html
*/
public function get_block()
{
global $charset;
$column = 1;
$data = array();
$student_content_html = $this->get_students_content_html_for_drh();
$html = '<li class="widget color-blue" id="intro">
<div class="widget-head">
<h3>'.get_lang('StudentsInformationsList').'</h3>
<div class="widget-actions"><a onclick="javascript:if(!confirm(\''.addslashes(api_htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;" href="index.php?action=disable_block&path='.$this->path.'">'.
Display::return_icon('close.gif',get_lang('Close')).'</a>
</div>
</div>
<div class="widget-content">
'.$student_content_html.'
</div>
</li>';
$data['column'] = $column;
$data['content_html'] = $html;
return $data;
}
/**
* This method return a content html, it's used inside get_block method for showing it inside dashboard interface
* @return string content html
*/
public function get_students_content_html_for_platform_admin()
{
$students = $this->students;
$content = '<div style="margin:10px;">';
$content .= '<h3><font color="#000">'.get_lang('YourStudents').'</font></h3>';
$students_table = null;
if (count($students) > 0) {
$students_table .= '<table class="data_table">';
$students_table .= '<tr>
<th width="10%" rowspan="2">'.get_lang('FirstName').'</th>
<th width="10%" rowspan="2">'.get_lang('LastName').'</th>
<th width="30%" colspan="2">'.get_lang('CourseInformation').'</th>
</tr>
<tr>
<th width="10%">'.get_lang('Courses').'</th>
<th width="10%">'.get_lang('Time').'</th>
</tr>';
$i = 1;
foreach ($students as $student) {
$courses_by_user = CourseManager::get_courses_list_by_user_id($student['user_id'], true);
$count_courses = count($courses_by_user);
$rowspan = $count_courses?$count_courses+1:2;
if ($i%2 == 0) {
$style = ' style="background-color:#F2F2F2" ';
} else {
$style = ' style="background-color:#FFF" ';
}
$students_table .= '<tr '.$style.'>
<td rowspan="'.$rowspan.'">'.$student['firstname'].'</td>
<td rowspan="'.$rowspan.'">'.$student['lastname'].'</td>
</tr>';
// courses information about the student
if (!empty($courses_by_user)) {
foreach ($courses_by_user as $course) {
$course_code = $course['code'];
$courseInfo = api_get_course_info($course_code);
$courseId = $courseInfo['real_id'];
$course_title = $course['title'];
$time = api_time_to_hms(Tracking :: get_time_spent_on_the_course($student['user_id'], $courseId));
$students_table .= '<tr '.$style.'>
<td align="right">'.$course_title.'</td>
<td align="right">'.$time.'</td>
</tr>';
}
} else {
$students_table .= '<tr '.$style.'>
<td align="center" colspan="2"><i>'.get_lang('Empty').'</i></td>
</tr>';
}
$i++;
}
$students_table .= '</table>';
} else {
$students_table .= get_lang('ThereIsNoInformationAboutYourStudents');
}
$content .= $students_table;
if (count($students) > 0) {
$content .= '<div style="text-align:right;margin-top:10px;"><a href="'.api_get_path(WEB_CODE_PATH).'mySpace/index.php?view=admin&display=useroverview">'.get_lang('SeeMore').'</a></div>';
}
$content .= '</div>';
return $content;
}
public function get_students_content_html_for_drh() {
$attendance = new Attendance();
$students = $this->students;
$content = '<div style="margin:5px;">';
$content .= '<h3><font color="#000">'.get_lang('YourStudents').'</font></h3>';
$students_table = null;
if (count($students) > 0) {
$students_table .= '<table class="data_table">';
$students_table .= '<tr>
<th>'.get_lang('User').'</th>
<th>'.get_lang('AttendancesFaults').'</th>
<th>'.get_lang('Evaluations').'</th>
</tr>';
$i = 1;
foreach ($students as $student) {
$student_id = $student['user_id'];
$firstname = $student['firstname'];
$lastname = $student['lastname'];
$username = $student['username'];
// get average of faults in attendances by student
$results_faults_avg = $attendance->get_faults_average_inside_courses($student_id);
if (!empty($results_faults_avg)) {
$attendances_faults_avg = '<a title="'.get_lang('GoToStudentDetails').'" href="'.api_get_path(WEB_CODE_PATH).'mySpace/myStudents.php?student='.$student_id.'">'.$results_faults_avg['faults'].'/'.$results_faults_avg['total'].' ('.$results_faults_avg['porcent'].'%)</a>';
} else {
$attendances_faults_avg = '0%';
}
$courses_by_user = CourseManager::get_courses_list_by_user_id($student_id, true);
$evaluations_avg = 0;
$score = $weight = 0;
foreach ($courses_by_user as $course) {
$course_code = $course['code'];
$cats = Category::load(null, null, $course_code, null, null, null, false);
$scoretotal = array();
if (isset($cats) && isset($cats[0])) {
$scoretotal= $cats[0]->calc_score($student_id, null, $course_code);
}
if (!empty($scoretotal)) {
$score += $scoretotal[0];
$weight += $scoretotal[1];
}
}
if (!empty($weight)) {
$evaluations_avg = '<a title="'.get_lang('GoToStudentDetails').'" href="'.api_get_path(WEB_CODE_PATH).'mySpace/myStudents.php?student='.$student_id.'">'.round($score,2).'/'.round($weight,2).'('.round(($score / $weight) * 100,2) . ' %)</a>';
}
if ($i%2 == 0) {
$class_tr = 'row_odd';
} else {
$class_tr = 'row_even';
}
$students_table .= '<tr class="'.$class_tr.'">
<td>'.api_get_person_name($firstname, $lastname).' ('.$username.')</td>
<td>'.$attendances_faults_avg.'</td>
<td>'.$evaluations_avg.'</td>
</tr>';
$i++;
}
$students_table .= '</table>';
} else {
$students_table .= get_lang('ThereIsNoInformationAboutYourStudents');
}
$content .= $students_table;
if (count($students) > 0) {
$content .= '<div style="text-align:right;margin-top:10px;">
<a href="'.api_get_path(WEB_CODE_PATH).'mySpace/index.php?view=admin&display=yourstudents">'.get_lang('SeeMore').'</a>
</div>';
}
$content .= '</div>';
return $content;
}
/**
* Get number of students
* @return int
*/
function get_number_of_students()
{
return count($this->students);
}
}