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795 lines
28 KiB
795 lines
28 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Certificate Class
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* Generate certificates based in the gradebook tool.
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* @package chamilo.library.certificates
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*/
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class Certificate extends Model
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{
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public $table;
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public $columns = array(
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'id',
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'cat_id',
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'score_certificate',
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'created_at',
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'path_certificate'
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);
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/**
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* Certification data
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*/
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public $certificate_data = [];
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/**
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* Student's certification path
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*/
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public $certification_user_path = null;
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public $certification_web_user_path = null;
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public $html_file = null;
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public $qr_file = null;
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public $user_id;
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/** If true every time we enter to the certificate URL
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* we would generate a new certificate (good thing because we can edit the
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* certificate and all users will have the latest certificate bad because we
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* load the certificate every time */
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public $force_certificate_generation = true;
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/**
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* Constructor
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* @param int $certificate_id ID of the certificate.
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* @param int $userId
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* @param bool $sendNotification send message to student
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*
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* If no ID given, take user_id and try to generate one
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*/
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public function __construct(
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$certificate_id = 0,
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$userId = 0,
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$sendNotification = false
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) {
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$this->table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
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$this->user_id = !empty($userId) ? $userId : api_get_user_id();
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if (!empty($certificate_id)) {
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$certificate = $this->get($certificate_id);
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if (!empty($certificate) && is_array($certificate)) {
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$this->certificate_data = $certificate;
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$this->user_id = $this->certificate_data['user_id'];
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}
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}
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if ($this->user_id) {
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// Need to be called before any operation
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$this->check_certificate_path();
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// To force certification generation
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if ($this->force_certificate_generation) {
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$this->generate([], $sendNotification);
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}
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if (isset($this->certificate_data) && $this->certificate_data) {
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if (empty($this->certificate_data['path_certificate'])) {
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$this->generate([], $sendNotification);
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}
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}
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}
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// Setting the qr and html variables
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if (isset($certificate_id) &&
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!empty($this->certification_user_path) &&
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isset($this->certificate_data['path_certificate'])
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) {
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$pathinfo = pathinfo($this->certificate_data['path_certificate']);
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$this->html_file = $this->certification_user_path.basename($this->certificate_data['path_certificate']);
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$this->qr_file = $this->certification_user_path.$pathinfo['filename'].'_qr.png';
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} else {
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// General certificate
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$name = md5($this->user_id).'.html';
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$my_path_certificate = $this->certification_user_path.$name;
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$path_certificate = '/'.$name;
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// Getting QR filename
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$file_info = pathinfo($path_certificate);
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$content = $this->generateCustomCertificate();
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$my_new_content_html = str_replace(
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'((certificate_barcode))',
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Display::img(
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$this->certification_web_user_path.$file_info['filename'].'_qr.png',
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'QR'
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),
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$content
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);
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$my_new_content_html = mb_convert_encoding(
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$my_new_content_html,
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'UTF-8',
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api_get_system_encoding()
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);
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$this->html_file = $my_path_certificate;
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$result = @file_put_contents($my_path_certificate, $my_new_content_html);
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if ($result) {
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// Updating the path
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self::updateUserCertificateInfo(
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0,
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$this->user_id,
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$path_certificate
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);
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$this->certificate_data['path_certificate'] = $path_certificate;
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if ($this->isHtmlFileGenerated()) {
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if (!empty($file_info)) {
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//$text = $this->parse_certificate_variables($new_content_html['variables']);
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//$this->generate_qr($text, $qr_code_filename);
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}
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}
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}
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return $result;
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}
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}
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/**
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* Checks if the certificate user path directory is created
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*/
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public function check_certificate_path()
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{
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$this->certification_user_path = null;
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// Setting certification path
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$path_info = UserManager::getUserPathById($this->user_id, 'system');
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$web_path_info = UserManager::getUserPathById($this->user_id, 'web');
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if (!empty($path_info) && isset($path_info)) {
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$this->certification_user_path = $path_info.'certificate/';
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$this->certification_web_user_path = $web_path_info.'certificate/';
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if (!is_dir($path_info)) {
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mkdir($path_info, 0777, true);
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}
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if (!is_dir($this->certification_user_path)) {
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mkdir($this->certification_user_path, 0777);
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}
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}
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}
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/**
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* Deletes the current certificate object. This is generally triggered by
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* the teacher from the gradebook tool to re-generate the certificate because
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* the original version wa flawed.
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* @param bool $force_delete
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* @return bool
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*/
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public function delete($force_delete = false)
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{
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$delete_db = false;
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if (!empty($this->certificate_data)) {
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if (!is_null($this->html_file) || $this->html_file != '' || strlen($this->html_file)) {
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// Deleting HTML file
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if (is_file($this->html_file)) {
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@unlink($this->html_file);
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if (is_file($this->html_file) === false) {
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$delete_db = true;
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} else {
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$delete_db = false;
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}
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}
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// Deleting QR code PNG image file
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if (is_file($this->qr_file)) {
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@unlink($this->qr_file);
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}
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if ($delete_db || $force_delete) {
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return parent::delete($this->certificate_data['id']);
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}
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} else {
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return parent::delete($this->certificate_data['id']);
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}
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}
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return false;
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}
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/**
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* Generates an HTML Certificate and fills the path_certificate field in the DB
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*
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* @param array $params
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* @param bool $sendNotification
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* @return bool|int
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*/
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public function generate($params = [], $sendNotification = false)
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{
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// The user directory should be set
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if (empty($this->certification_user_path) &&
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$this->force_certificate_generation == false
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) {
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return false;
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}
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$params['hide_print_button'] = isset($params['hide_print_button']) ? true : false;
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if (isset($this->certificate_data) && isset($this->certificate_data['cat_id'])) {
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$my_category = Category::load($this->certificate_data['cat_id']);
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}
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if (isset($my_category[0]) &&
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$my_category[0]->is_certificate_available($this->user_id)
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) {
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$courseInfo = api_get_course_info($my_category[0]->get_course_code());
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$courseId = $courseInfo['real_id'];
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$sessionId = $my_category[0]->get_session_id();
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$skill = new Skill();
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$skill->addSkillToUser(
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$this->user_id,
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$this->certificate_data['cat_id'],
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$courseId,
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$sessionId
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);
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if (is_dir($this->certification_user_path)) {
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if (!empty($this->certificate_data)) {
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$new_content_html = GradebookUtils::get_user_certificate_content(
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$this->user_id,
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$my_category[0]->get_course_code(),
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$my_category[0]->get_session_id(),
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false,
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$params['hide_print_button']
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);
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if ($my_category[0]->get_id() == strval(intval($this->certificate_data['cat_id']))) {
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$name = $this->certificate_data['path_certificate'];
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$myPathCertificate = $this->certification_user_path.basename($name);
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if (file_exists($myPathCertificate) &&
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!empty($name) &&
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!is_dir($myPathCertificate) &&
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$this->force_certificate_generation == false
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) {
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//Seems that the file was already generated
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return true;
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} else {
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// Creating new name
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$name = md5($this->user_id.$this->certificate_data['cat_id']).'.html';
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$myPathCertificate = $this->certification_user_path.$name;
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$path_certificate = '/'.$name;
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// Getting QR filename
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$file_info = pathinfo($path_certificate);
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$qr_code_filename = $this->certification_user_path.$file_info['filename'].'_qr.png';
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$newContent = str_replace(
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'((certificate_barcode))',
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Display::img(
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$this->certification_web_user_path.$file_info['filename'].'_qr.png',
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'QR'
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),
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$new_content_html['content']
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);
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$newContent = api_convert_encoding(
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$newContent,
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'UTF-8',
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api_get_system_encoding()
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);
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$result = @file_put_contents($myPathCertificate, $newContent);
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if ($result) {
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// Updating the path
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self::updateUserCertificateInfo(
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$this->certificate_data['cat_id'],
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$this->user_id,
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$path_certificate
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);
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$this->certificate_data['path_certificate'] = $path_certificate;
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if ($this->isHtmlFileGenerated()) {
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if (!empty($file_info)) {
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$text = $this->parseCertificateVariables(
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$new_content_html['variables']
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);
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$this->generateQRImage(
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$text,
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$qr_code_filename
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);
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if ($sendNotification) {
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$subject = get_lang('NotificationCertificateSubject');
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$message = nl2br(get_lang('NotificationCertificateTemplate'));
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$score = $this->certificate_data['score_certificate'];
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Certificate::sendNotification(
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$subject,
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$message,
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api_get_user_info($this->user_id),
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$courseInfo,
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[
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'score_certificate' => $score
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]
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);
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}
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}
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}
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}
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return $result;
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}
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}
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}
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}
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} else {
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// General certificate
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$name = md5($this->user_id).'.html';
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$my_path_certificate = $this->certification_user_path.$name;
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$path_certificate = '/'.$name;
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// Getting QR filename
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$file_info = pathinfo($path_certificate);
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$content = $this->generateCustomCertificate();
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$my_new_content_html = str_replace(
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'((certificate_barcode))',
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Display::img(
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+$this->certification_web_user_path.$file_info['filename'].'_qr.png',
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'QR'
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),
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$content
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);
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$my_new_content_html = mb_convert_encoding(
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$my_new_content_html,
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'UTF-8',
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api_get_system_encoding()
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);
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$result = @file_put_contents($my_path_certificate, $my_new_content_html);
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if ($result) {
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// Updating the path
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self::updateUserCertificateInfo(
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0,
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$this->user_id,
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$path_certificate
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);
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$this->certificate_data['path_certificate'] = $path_certificate;
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if ($this->isHtmlFileGenerated()) {
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if (!empty($file_info)) {
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//$text = $this->parse_certificate_variables($new_content_html['variables']);
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//$this->generate_qr($text, $qr_code_filename);
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}
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}
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}
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return $result;
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}
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return false;
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}
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/**
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* @return array
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*/
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public static function notificationTags()
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{
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$tags = [
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'((course_title))',
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'((user_first_name))',
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'((user_last_name))',
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'((author_first_name))',
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'((author_last_name))',
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'((score))',
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'((portal_name))'
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];
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return $tags;
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}
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/**
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* @param string $subject
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* @param string $message
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* @param array $userInfo
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* @param array $courseInfo
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* @param array $certificateInfo
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*
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* @return bool
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*/
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public static function sendNotification(
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$subject,
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$message,
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$userInfo,
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$courseInfo,
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$certificateInfo
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) {
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if (empty($userInfo) || empty($courseInfo)) {
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return false;
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}
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$currentUserInfo = api_get_user_info();
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$replace = [
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$courseInfo['title'],
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$userInfo['firstname'],
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$userInfo['lastname'],
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$currentUserInfo['firstname'],
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$currentUserInfo['lastname'],
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$certificateInfo['score_certificate'],
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api_get_setting('Institution')
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];
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$message = str_replace(self::notificationTags(), $replace, $message);
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MessageManager::send_message(
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$userInfo['id'],
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$subject,
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$message,
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[],
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[],
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0,
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0,
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0,
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0,
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$currentUserInfo['id']
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);
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$plugin = new AppPlugin();
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$smsPlugin = $plugin->getSMSPluginLibrary();
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if ($smsPlugin) {
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$additionalParameters = array(
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'smsType' => SmsPlugin::CERTIFICATE_NOTIFICATION,
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'userId' => $userInfo['id'],
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'direct_message' => $message
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);
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$smsPlugin->send($additionalParameters);
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}
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}
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/**
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* Update user info about certificate
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* @param int $cat_id category id
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* @param int $user_id user id
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* @param string $path_certificate the path name of the certificate
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*
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*/
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public function updateUserCertificateInfo(
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$cat_id,
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$user_id,
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$path_certificate
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) {
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$table = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
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$now = api_get_utc_datetime();
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if (!UserManager::is_user_certified($cat_id, $user_id)) {
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$sql = 'UPDATE '.$table.' SET
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path_certificate="'.Database::escape_string($path_certificate).'",
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created_at = "'.$now.'"
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WHERE cat_id="'.intval($cat_id).'" AND user_id="'.intval($user_id).'" ';
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Database::query($sql);
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}
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}
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/**
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* Check if the file was generated
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*
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* @return boolean
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*/
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public function isHtmlFileGenerated()
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{
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if (empty($this->certification_user_path)) {
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return false;
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}
|
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if (!empty($this->certificate_data) &&
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isset($this->certificate_data['path_certificate']) &&
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!empty($this->certificate_data['path_certificate'])
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) {
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return true;
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}
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return false;
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}
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|
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/**
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* Generates a QR code for the certificate. The QR code embeds the text given
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* @param string $text Text to be added in the QR code
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* @param string $path file path of the image
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* @return bool
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**/
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public function generateQRImage($text, $path)
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{
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//Make sure HTML certificate is generated
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if (!empty($text) && !empty($path)) {
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//L low, M - Medium, L large error correction
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return PHPQRCode\QRcode::png($text, $path, 'M', 2, 2);
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}
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return false;
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}
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|
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/**
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* Transforms certificate tags into text values. This function is very static
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* (it doesn't allow for much flexibility in terms of what tags are printed).
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* @param array $array Contains two array entries: first are the headers,
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* second is an array of contents
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* @return string The translated string
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*/
|
|
public function parseCertificateVariables($array)
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{
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$headers = $array[0];
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$content = $array[1];
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$final_content = array();
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if (!empty($content)) {
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foreach ($content as $key => $value) {
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$my_header = str_replace(array('((', '))'), '', $headers[$key]);
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$final_content[$my_header] = $value;
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}
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}
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|
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/* Certificate tags
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*
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0 => string '((user_firstname))' (length=18)
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1 => string '((user_lastname))' (length=17)
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2 => string '((gradebook_institution))' (length=25)
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3 => string '((gradebook_sitename))' (length=22)
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4 => string '((teacher_firstname))' (length=21)
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5 => string '((teacher_lastname))' (length=20)
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6 => string '((official_code))' (length=17)
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7 => string '((date_certificate))' (length=20)
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8 => string '((course_code))' (length=15)
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9 => string '((course_title))' (length=16)
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10 => string '((gradebook_grade))' (length=19)
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11 => string '((certificate_link))' (length=20)
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12 => string '((certificate_link_html))' (length=25)
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13 => string '((certificate_barcode))' (length=23)
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*/
|
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|
|
$break_space = " \n\r ";
|
|
$text =
|
|
$final_content['gradebook_institution'].' - '.
|
|
$final_content['gradebook_sitename'].' - '.
|
|
get_lang('Certification').$break_space.
|
|
get_lang('Student').': '.$final_content['user_firstname'].' '.$final_content['user_lastname'].$break_space.
|
|
get_lang('Teacher').': '.$final_content['teacher_firstname'].' '.$final_content['teacher_lastname'].$break_space.
|
|
get_lang('Date').': '.$final_content['date_certificate'].$break_space.
|
|
get_lang('Score').': '.$final_content['gradebook_grade'].$break_space.
|
|
'URL'.': '.$final_content['certificate_link'];
|
|
|
|
return $text;
|
|
}
|
|
|
|
/**
|
|
* Check if the certificate is visible for the current user
|
|
* If the global setting allow_public_certificates is set to 'false', no certificate can be printed.
|
|
* If the global allow_public_certificates is set to 'true' and the course setting allow_public_certificates
|
|
* is set to 0, no certificate *in this course* can be printed (for anonymous users).
|
|
* Connected users can always print them.
|
|
* @return bool
|
|
*/
|
|
public function isVisible()
|
|
{
|
|
if (!api_is_anonymous()) {
|
|
return true;
|
|
}
|
|
|
|
if (api_get_setting('allow_public_certificates') != 'true') {
|
|
// The "non-public" setting is set, so do not print
|
|
return false;
|
|
}
|
|
|
|
if (!isset($this->certificate_data, $this->certificate_data['cat_id'])) {
|
|
return false;
|
|
}
|
|
|
|
$gradeBook = new Gradebook();
|
|
$gradeBookInfo = $gradeBook->get($this->certificate_data['cat_id']);
|
|
|
|
if (empty($gradeBookInfo['course_code'])) {
|
|
return false;
|
|
}
|
|
|
|
if (api_get_course_setting('allow_public_certificates', $gradeBookInfo['course_code']) == 0) {
|
|
// Printing not allowed
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if the certificate is available
|
|
* @return bool
|
|
*/
|
|
public function isAvailable()
|
|
{
|
|
if (empty($this->certificate_data['path_certificate'])) {
|
|
return false;
|
|
}
|
|
|
|
$user_certificate = $this->certification_user_path.basename($this->certificate_data['path_certificate']);
|
|
|
|
if (!file_exists($user_certificate)) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Shows the student's certificate (HTML file)
|
|
*/
|
|
public function show()
|
|
{
|
|
header('Content-Type: text/html; charset='.api_get_system_encoding());
|
|
|
|
$user_certificate = $this->certification_user_path.basename($this->certificate_data['path_certificate']);
|
|
if (file_exists($user_certificate)) {
|
|
$certificateContent = (string) file_get_contents($user_certificate);
|
|
|
|
if ($this->user_id == api_get_user_id() && !empty($this->certificate_data)) {
|
|
$certificateId = $this->certificate_data['id'];
|
|
$extraFieldValue = new ExtraFieldValue('user_certificate');
|
|
$value = $extraFieldValue->get_values_by_handler_and_field_variable(
|
|
$certificateId,
|
|
'downloaded_at'
|
|
);
|
|
if (empty($value)) {
|
|
$params = [
|
|
'item_id' => $this->certificate_data['id'],
|
|
'extra_downloaded_at' => api_get_utc_datetime(),
|
|
];
|
|
$extraFieldValue->saveFieldValues($params);
|
|
}
|
|
}
|
|
|
|
echo $certificateContent;
|
|
return;
|
|
}
|
|
api_not_allowed(true);
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function generateCustomCertificate()
|
|
{
|
|
$myCertificate = GradebookUtils::get_certificate_by_user_id(
|
|
0,
|
|
$this->user_id
|
|
);
|
|
|
|
if (empty($myCertificate)) {
|
|
GradebookUtils::registerUserInfoAboutCertificate(
|
|
0,
|
|
$this->user_id,
|
|
100,
|
|
api_get_utc_datetime()
|
|
);
|
|
}
|
|
|
|
$userInfo = api_get_user_info($this->user_id);
|
|
|
|
$extraFieldValue = new ExtraFieldValue('user');
|
|
$value = $extraFieldValue->get_values_by_handler_and_field_variable($this->user_id, 'legal_accept');
|
|
|
|
$termsValidationDate = '';
|
|
if (isset($value) && !empty($value['value'])) {
|
|
list($id, $id2, $termsValidationDate) = explode(':', $value['value']);
|
|
}
|
|
|
|
$sessions = SessionManager::get_sessions_by_user($this->user_id);
|
|
$sessionsApproved = [];
|
|
if ($sessions) {
|
|
foreach ($sessions as $session) {
|
|
$allCoursesApproved = [];
|
|
foreach ($session['courses'] as $course) {
|
|
$courseInfo = api_get_course_info_by_id($course['real_id']);
|
|
$gradebookCategories = Category::load(
|
|
null,
|
|
null,
|
|
$courseInfo['code'],
|
|
null,
|
|
false,
|
|
$session['session_id']
|
|
);
|
|
|
|
if (isset($gradebookCategories[0])) {
|
|
/** @var Category $category */
|
|
$category = $gradebookCategories[0];
|
|
// $categoryId = $category->get_id();
|
|
// @todo how we check if user pass a gradebook?
|
|
//$certificateInfo = GradebookUtils::get_certificate_by_user_id($categoryId, $this->user_id);
|
|
|
|
$result = Category::userFinishedCourse(
|
|
$this->user_id,
|
|
$category,
|
|
null,
|
|
$courseInfo['code'],
|
|
$session['session_id'],
|
|
true
|
|
);
|
|
|
|
if ($result) {
|
|
$allCoursesApproved[] = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (count($allCoursesApproved) == count($session['courses'])) {
|
|
$sessionsApproved[] = $session;
|
|
}
|
|
}
|
|
}
|
|
|
|
$skill = new Skill();
|
|
$skills = $skill->getStudentSkills($this->user_id);
|
|
$timeInSeconds = Tracking::get_time_spent_on_the_platform($this->user_id);
|
|
$time = api_time_to_hms($timeInSeconds);
|
|
|
|
$tplContent = new Template(null, false, false, false, false, false);
|
|
|
|
// variables for the default template
|
|
$tplContent->assign('complete_name', $userInfo['complete_name']);
|
|
$tplContent->assign('time_in_platform', $time);
|
|
$tplContent->assign('certificate_generated_date', api_get_local_time($myCertificate['created_at']));
|
|
if (!empty($termsValidationDate)) {
|
|
$termsValidationDate = api_get_local_time($termsValidationDate);
|
|
}
|
|
$tplContent->assign('terms_validation_date', $termsValidationDate);
|
|
|
|
// Ofaj
|
|
$tplContent->assign('time_in_platform_in_hours', round($timeInSeconds/3600, 1));
|
|
$tplContent->assign(
|
|
'certificate_generated_date_no_time',
|
|
api_get_local_time(
|
|
$myCertificate['created_at'],
|
|
null,
|
|
null,
|
|
false,
|
|
false
|
|
)
|
|
);
|
|
$tplContent->assign(
|
|
'terms_validation_date_no_time',
|
|
api_get_local_time(
|
|
$termsValidationDate,
|
|
null,
|
|
null,
|
|
false,
|
|
false
|
|
)
|
|
);
|
|
$tplContent->assign('skills', $skills);
|
|
$tplContent->assign('sessions', $sessionsApproved);
|
|
|
|
$layoutContent = $tplContent->get_template('gradebook/custom_certificate.tpl');
|
|
$content = $tplContent->fetch($layoutContent);
|
|
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Ofaj
|
|
*/
|
|
public function generatePdfFromCustomCertificate()
|
|
{
|
|
$orientation = api_get_configuration_value('certificate_pdf_orientation');
|
|
|
|
$params['orientation'] = 'landscape';
|
|
if (!empty($orientation)) {
|
|
$params['orientation'] = $orientation;
|
|
}
|
|
|
|
$params['left'] = 0;
|
|
$params['right'] = 0;
|
|
$params['top'] = 0;
|
|
$params['bottom'] = 0;
|
|
$page_format = $params['orientation'] == 'landscape' ? 'A4-L' : 'A4';
|
|
$pdf = new PDF($page_format, $params['orientation'], $params);
|
|
|
|
$pdf->html_to_pdf(
|
|
$this->html_file,
|
|
get_lang('Certificates'),
|
|
null,
|
|
false,
|
|
false
|
|
);
|
|
}
|
|
}
|
|
|