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200 lines
6.6 KiB
200 lines
6.6 KiB
<?php
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/**
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* This file is part of course block plugin for dashboard,
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* it should be required inside dashboard controller for showing it into dashboard interface from plattform
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* @package chamilo.dashboard
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* @author Christian Fasanando
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*/
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/**
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* required files for getting data
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*/
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require_once api_get_path(LIBRARY_PATH).'course.lib.php';
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require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
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require_once api_get_path(LIBRARY_PATH).'tracking.lib.php';
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require_once api_get_path(LIBRARY_PATH).'thematic.lib.php';
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/**
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* This class is used like controller for this course block plugin,
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* the class name must be registered inside path.info file (e.g: controller = "BlockCourse"), so dashboard controller will be instantiate it
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* @package chamilo.dashboard
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*/
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class BlockCourse extends Block {
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private $user_id;
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private $courses;
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private $path;
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private $permission = array(DRH);
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/**
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* Constructor
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*/
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public function __construct ($user_id) {
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$this->user_id = $user_id;
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$this->path = 'block_course';
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if ($this->is_block_visible_for_user($user_id)) {
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/*if (api_is_platform_admin()) {
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$this->courses = CourseManager::get_real_course_list();
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} else {*/
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$this->courses = CourseManager::get_courses_followed_by_drh($user_id);
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//}
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}
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}
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/**
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* This method check if a user is allowed to see the block inside dashboard interface
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* @param int User id
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* @return bool Is block visible for user
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*/
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public function is_block_visible_for_user($user_id) {
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$user_info = api_get_user_info($user_id);
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$user_status = $user_info['status'];
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$is_block_visible_for_user = false;
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if (UserManager::is_admin($user_id) || in_array($user_status, $this->permission)) {
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$is_block_visible_for_user = true;
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}
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return $is_block_visible_for_user;
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}
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/**
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* This method return content html containing information about courses and its position for showing it inside dashboard interface
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* it's important to use the name 'get_block' for beeing used from dashboard controller
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* @return array column and content html
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*/
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public function get_block() {
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global $charset;
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$column = 2;
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$data = array();
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$content = '';
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$data_table = '';
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$content = $this->get_content_html();
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$html = '
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<li class="widget color-green" id="intro">
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<div class="widget-head">
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<h3>Courses Informations</h3>
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<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>
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</div>
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<div class="widget-content">
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'.$content.'
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</div>
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</li>
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';
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$data['column'] = $column;
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$data['content_html'] = $html;
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return $data;
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}
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/**
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* This method return a content html, it's used inside get_block method for showing it inside dashboard interface
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* @return string content html
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*/
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public function get_content_html() {
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$course_data = $this->get_course_information_data();
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$content = '<div style="margin:10px;">';
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$content .= '<h3><font color="#000">'.get_lang('YourCourseList').'</font></h3>';
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if (!empty($course_data)) {
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$data_table = '<table class="data_table" width:"95%">';
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$data_table .= '<tr>
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<th>'.get_lang('CourseTitle').'</th>
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<th width="20%">'.get_lang('NbStudents').'</th>
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<th width="20%">'.get_lang('AvgTimeSpentInTheCourse').'</th>
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<th width="20%">'.get_lang('ThematicAdvance').'</th>
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</tr>';
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$i = 1;
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foreach ($course_data as $course) {
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if ($i%2 == 0) {
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$class_tr = 'row_odd';
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} else {
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$class_tr = 'row_even';
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}
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$data_table .= '<tr class="'.$class_tr.'">';
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if (!isset($course[2])) {
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$course[2] = '0:00:00';
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}
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foreach ($course as $cell) {
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$data_table .= '<td align="right">'.$cell.'</td>';
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}
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$data_table .= '</tr>';
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$i++;
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}
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$data_table .= '</table>';
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} else {
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$data_table .= get_lang('ThereIsNoInformationAboutYourCourses');
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}
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$content .= $data_table;
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if (!empty($course_data)) {
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$content .= '<div style="text-align:right;margin-top:10px;"><a href="'.api_get_path(WEB_CODE_PATH).'mySpace/course.php">'.get_lang('SeeMore').'</a></div>';
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}
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$content .= '</div>';
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return $content;
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}
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/**
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* Get number of courses
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* @return int
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*/
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function get_number_of_courses() {
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return count($this->courses);
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}
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/**
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* Get course information data
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* @return array
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*/
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function get_course_information_data() {
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$tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
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$tbl_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
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$a_course_students = array();
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$course_data = array();
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$courses = $this->courses;
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$thematic = new Thematic();
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foreach ($courses as $row_course) {
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$course_code = $row_course['code'];
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$avg_assignments_in_course = $avg_messages_in_course = $nb_students_in_course = $avg_progress_in_course = $avg_score_in_course = $avg_time_spent_in_course = $avg_score_in_exercise = 0;
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// students directly subscribed to the course
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$sql = "SELECT user_id FROM $tbl_course_user as course_rel_user WHERE course_rel_user.status=".STUDENT." AND course_rel_user.course_code='$course_code'";
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$rs = Database::query($sql);
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$users = array();
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while ($row = Database::fetch_array($rs)) {
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$users[] = $row['user_id'];
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}
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if (count($users) > 0) {
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$nb_students_in_course = count($users);
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$avg_time_spent_in_course = api_time_to_hms(Tracking::get_time_spent_on_the_course($users, $course_code)/$nb_students_in_course);
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} else {
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$avg_time_spent_in_course = null;
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}
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$tematic_advance_progress = 0;
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$tematic_advance = $thematic->get_total_average_of_thematic_advances($course_code, 0);
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if (!empty($tematic_advance)) {
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$tematic_advance_progress = '<a title="'.get_lang('GoToThematicAdvance').'" href="'.api_get_path(WEB_CODE_PATH).'course_progress/index.php?cidReq='.$course_code.'&action=thematic_details">'.$tematic_advance.'%</a>';
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} else {
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$tematic_advance_progress = '0%';
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}
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$table_row = array();
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$table_row[] = $row_course['title'];
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$table_row[] = $nb_students_in_course;
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$table_row[] = $avg_time_spent_in_course;
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$table_row[] = $tematic_advance_progress;
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$course_data[] = $table_row;
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}
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return $course_data;
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}
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}
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?>
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