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551 lines
26 KiB
551 lines
26 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Course request manager
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* @package chamilo.library
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*
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* @author José Manuel Abuin Mosquera <chema@cesga.es>, 2010
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* @author Bruno Rubio Gayo <brubio@cesga.es>, 2010
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* Centro de Supercomputacion de Galicia (CESGA)
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*
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* @author Ivan Tcholakov <ivantcholakov@gmail.com> (technical adaptation for Chamilo 1.8.8), 2010
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*/
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define(COURSE_REQUEST_PENDING, 0);
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define(COURSE_REQUEST_ACCEPTED, 1);
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define(COURSE_REQUEST_REJECTED, 2);
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class CourseRequestManager {
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/**
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* Checks whether a given course code has been already occupied.
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* @param string $wanted_course_code The code to be checked.
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* @return string
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* Returns TRUE if there is created:
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* - a course with the same code OR visual_code (visualcode).
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* - a course request with the same code as the given one, or
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* Othewise returns FALSE.
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*/
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public static function course_code_exists($wanted_course_code) {
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if ($code_exists = CourseManager::course_code_exists($wanted_course_code)) {
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return $code_exists;
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}
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$table_course_request = Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST);
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$wanted_course_code = Database::escape_string($wanted_course_code);
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$sql = sprintf('SELECT COUNT(id) AS number FROM %s WHERE visual_code = "%s"', $table_course_request, $wanted_course_code);
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$result = Database::fetch_array(Database::query($sql));
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return $result['number'] > 0;
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}
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/**
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* Creates a new course request within the database.
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* @param string $wanted_code The code for the created in the future course.
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* @param string $title
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* @param string $description
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* @param string $category_code
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* @param string $course_language
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* @param string $objetives
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* @param string $target_audience
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* @param int/string $user_id
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* @return int/bool The database id of the newly created course request or FALSE on failure.
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*/
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public static function create_course_request($wanted_code, $title, $description, $category_code, $course_language, $objetives, $target_audience, $user_id, $exemplary_content) {
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$wanted_code = trim($wanted_code);
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$user_id = (int)$user_id;
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$exemplary_content = (bool)$exemplary_content ? 1 : 0;
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if ($wanted_code == '') {
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return false;
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}
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if (self::course_code_exists($wanted_code)) {
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return false;
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}
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if ($user_id <= 0) {
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return false;
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}
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$user_info = api_get_user_info($user_id);
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if (!is_array($user_info)) {
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return false;
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}
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$tutor_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $course_language);
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$request_date = api_get_utc_datetime();
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$status = COURSE_REQUEST_PENDING;
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$info = 0;
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$keys = define_course_keys($wanted_code, '', $_configuration['db_prefix']);
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if (!count($keys)) {
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return false;
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}
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$visual_code = $keys['currentCourseCode'];
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$code = $keys['currentCourseId'];
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$db_name = $keys['currentCourseDbName'];
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$directory = $keys['currentCourseRepository'];
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$sql = sprintf('INSERT INTO %s (
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code, user_id, directory, db_name,
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course_language, title, description, category_code,
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tutor_name, visual_code, request_date,
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objetives, target_audience, status, info, exemplary_content)
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VALUES (
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"%s", "%s", "%s", "%s",
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"%s", "%s", "%s", "%s",
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"%s", "%s", "%s",
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"%s", "%s", "%s", "%s", "%s");', Database::get_main_table(TABLE_MAIN_COURSE_REQUEST),
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Database::escape_string($code), Database::escape_string($user_id), Database::escape_string($directory), Database::escape_string($db_name),
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Database::escape_string($course_language), Database::escape_string($title), Database::escape_string($description), Database::escape_string($category_code),
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Database::escape_string($tutor_name), Database::escape_string($visual_code), Database::escape_string($request_date),
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Database::escape_string($objetives), Database::escape_string($target_audience), Database::escape_string($status), Database::escape_string($info), Database::escape_string($exemplary_content));
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$result_sql = Database::query($sql);
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if (!$result_sql) {
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return false;
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}
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$last_insert_id = Database::get_last_insert_id();
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// E-mail notifications.
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// E-mail language: The platform language seems to be the best choice.
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//$email_language = $course_language;
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//$email_language = api_get_interface_language();
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$email_language = api_get_setting('platformLanguage');
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$email_subject = sprintf(get_lang('CourseRequestEmailSubject', null, $email_language), '['.api_get_setting('siteName').']', $code);
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$email_body = get_lang('CourseRequestMailOpening', null, $email_language)."\n\n";
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$email_body .= get_lang('CourseName', null, $email_language).': '.$title."\n";
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$email_body .= get_lang('Fac', null, $email_language).': '.$category_code."\n";
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$email_body .= get_lang('CourseCode', null, $email_language).': '.$code."\n";
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$email_body .= get_lang('Professor', null, $email_language).': '.api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $email_language)."\n";
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$email_body .= get_lang('Email', null, $email_language).': '.$user_info['mail']."\n";
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$email_body .= get_lang('Description', null, $email_language).': '.$description."\n";
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$email_body .= get_lang('Objectives', null, $email_language).': '.$objetives."\n";
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$email_body .= get_lang('TargetAudience', null, $email_language).': '.$target_audience."\n";
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$email_body .= get_lang('Ln', null, $email_language).': '.$course_language."\n";
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$email_body .= get_lang('FillWithExemplaryContent', null, $email_language).': '.($exemplary_content ? get_lang('Yes', null, $email_language) : get_lang('No', null, $email_language))."\n";
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// Sending an e-mail to the platform administrator.
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$email_body_admin = $email_body;
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$email_body_admin .= "\n".get_lang('CourseRequestPageForApproval', null, $email_language).' '.api_get_path(WEB_CODE_PATH).'admin/course_request_edit.php?id='.$last_insert_id."\n";
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$email_body_admin .= "\n".get_lang('CourseRequestLegalNote', null, $email_language)."\n";
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$sender_name_teacher = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, PERSON_NAME_EMAIL_ADDRESS);
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$sender_email_teacher = $user_info['mail'];
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$recipient_name_admin = api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, PERSON_NAME_EMAIL_ADDRESS);
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$recipient_email_admin = get_setting('emailAdministrator');
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@api_mail($recipient_name_admin, $recipient_email_admin, $email_subject, $email_body_admin, $sender_name_teacher, $sender_email_teacher);
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// Sending an e-mail to the requestor.
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$email_body_teacher = get_lang('Dear', null, $email_language).' ';
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$email_body_teacher .= api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $email_language).",\n\n";
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$email_body_teacher .= $email_body;
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$email_body_teacher .= "\n".get_lang('Formula', null, $email_language)."\n";
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$email_body_teacher .= api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, null, $email_language)."\n";
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$email_body_teacher .= get_lang('Manager', null, $email_language).' '.api_get_setting('siteName')."\n";
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$email_body_teacher .= get_lang('Phone', null, $email_language).': '.api_get_setting('administratorTelephone')."\n";
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$email_body_teacher .= get_lang('Email', null, $email_language).': '.api_get_setting('emailAdministrator', null, $email_language)."\n";
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$email_body_teacher .= "\n".get_lang('CourseRequestLegalNote', null, $email_language)."\n";
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// Swap the sender and the recipient.
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$sender_name_admin = $recipient_name_admin;
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$sender_email_admin = $recipient_email_admin;
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$recipient_name_teacher = $sender_name_teacher;
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$recipient_email_teacher = $sender_email_teacher;
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@api_mail($recipient_name_teacher, $recipient_email_teacher, $email_subject, $email_body_teacher, $sender_name_admin, $sender_email_admin);
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return $last_insert_id;
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}
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/**
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* Updates a given course request in the database.
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* @param int/string $id The id (an integer number) of the corresponding database record.
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* @param string $wanted_code The code for the created in the future course.
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* @param string $title
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* @param string $description
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* @param string $category_code
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* @param string $course_language
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* @param string $objetives
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* @param string $target_audience
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* @param int/string $user_id
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* @return bool Returns TRUE on success or FALSE on failure.
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*/
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public static function update_course_request($id, $wanted_code, $title, $description, $category_code, $course_language, $objetives, $target_audience, $user_id, $exemplary_content) {
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$id = (int)$id;
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$wanted_code = trim($wanted_code);
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$user_id = (int)$user_id;
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$exemplary_content = (bool)$exemplary_content ? 1 : 0;
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if ($wanted_code == '') {
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return false;
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}
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if ($user_id <= 0) {
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return false;
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}
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// Retrieve request's data
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$course_request_info = self::get_course_request_info($id);
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if (!is_array($course_request_info)) {
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return false;
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}
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$code = $wanted_code;
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$tutor_name = $course_request_info['tutor_name'];
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$directory = $course_request_info['directory'];
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$db_name = $course_request_info['db_name'];
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$visual_code = $course_request_info['visual_code'];
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$request_date = $course_request_info['request_date'];
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$status = $course_request_info['status'];
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$info = $course_request_info['info'];
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if ($wanted_code != $course_request_info['code']) {
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if (self::course_code_exists($wanted_code)) {
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return false;
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}
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$keys = define_course_keys($wanted_code, '', $_configuration['db_prefix']);
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if (count($keys)) {
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$visual_code = $keys['currentCourseCode'];
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$code = $keys['currentCourseId'];
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$db_name = $keys['currentCourseDbName'];
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$directory = $keys['currentCourseRepository'];
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} else {
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return false;
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}
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}
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if ($user_id != $course_request_info['code']) {
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$user_info = api_get_user_info($user_id);
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if (is_array($user_info)) {
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$tutor_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $course_language);
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} else {
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$user_id = $course_request_info['code'];
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}
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}
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if ($course_language != $course_request_info['course_language']) {
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$user_info = api_get_user_info($user_id);
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if (is_array($user_info)) {
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$tutor_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $course_language);
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}
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}
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$sql = sprintf('UPDATE %s SET
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code = "%s", user_id = "%s", directory = "%s", db_name = "%s",
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course_language = "%s", title = "%s", description = "%s", category_code = "%s",
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tutor_name = "%s", visual_code = "%s", request_date = "%s",
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objetives = "%s", target_audience = "%s", status = "%s", info = "%s", exemplary_content = "%s"
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WHERE id = '.$id, Database::get_main_table(TABLE_MAIN_COURSE_REQUEST),
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Database::escape_string($code), Database::escape_string($user_id), Database::escape_string($directory), Database::escape_string($db_name),
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Database::escape_string($course_language), Database::escape_string($title), Database::escape_string($description), Database::escape_string($category_code),
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Database::escape_string($tutor_name), Database::escape_string($visual_code), Database::escape_string($request_date),
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Database::escape_string($objetives), Database::escape_string($target_audience), Database::escape_string($status), Database::escape_string($info), Database::escape_string($exemplary_content));
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$result_sql = Database::query($sql);
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return $result_sql !== false;
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}
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/**
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* Deletes a given course request.
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* @param int/string $id The id (an integer number) of the corresponding database record.
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* @return bool Returns TRUE on success or FALSE on failure.
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*/
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public static function delete_course_request($id) {
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$id = (int)$id;
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$sql = "DELETE FROM ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." WHERE id = ".$id;
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$result = Database::query($sql);
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return $result !== false;
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}
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public static function count_course_requests($status = null) {
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$course_table = Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST);
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if (is_null($status)) {
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$sql = "SELECT COUNT(id) AS number FROM ".$course_table;
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} else {
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$status = (int)$status;
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$sql = "SELECT COUNT(id) AS number FROM ".$course_table." WHERE status = ".$status;
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}
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$result = Database::fetch_array(Database::query($sql));
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if (is_array($result)) {
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return $result['number'];
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}
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return false;
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}
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/**
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* Gets all the information about a course request using its database id as an access key.
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* @param int/string $id The id (an integer number) of the corresponding database record.
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* @return array/bool Returns the requested data as an array or FALSE on failure.
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*/
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public static function get_course_request_info($id) {
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$id = (int)$id;
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$sql = "SELECT * FROM ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." WHERE id = ".$id;
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$result = Database::query($sql);
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if (Database::num_rows($result) > 0) {
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return Database::fetch_array($result);
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}
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return false;
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}
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/**
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* Gets the code of a given course request using its database id as an access key.
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* @param int/string $id The id (an integer number) of the corresponding database record.
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* @return string/bool Returns the requested requested code or FALSE on failure.
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*/
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public static function get_course_request_code($id) {
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$id = (int)$id;
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$sql = "SELECT code FROM ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." WHERE id = ".$id;
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$result = Database::query($sql);
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if (Database::num_rows($result) > 0) {
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$result_array = Database::fetch_array($result, 'NUM');
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if (is_array($result_array)) {
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return $result_array[0];
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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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* Accepts a given by its id course request. The requested course gets created immediately after the request acceptance.
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* @param int/string $id The id (an integer number) of the corresponding database record.
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* @return string/bool Returns the code of the newly created course or FALSE on failure.
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*/
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public static function accept_course_request($id) {
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$id = (int)$id;
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// Retrieve request's data
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$course_request_info = self::get_course_request_info($id);
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if (!is_array($course_request_info)) {
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return false;
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}
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// Make all the checks again before the new course creation.
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$wanted_code = $course_request_info['code'];
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if (CourseManager::course_code_exists($wanted_code)) {
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return false;
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}
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$title = $course_request_info['title'];
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$category_code = $course_request_info['category_code'];
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$course_language = $course_request_info['course_language'];
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$exemplary_content = intval($course_request_info['exemplary_content']) > 0;
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$user_id = (int)$course_request_info['user_id'];
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if ($user_id <= 0) {
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return false;
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}
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$user_info = api_get_user_info($user_id);
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if (!is_array($user_info)) {
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return false;
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}
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$tutor_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $course_language);
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// Create the requested course.
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$keys = define_course_keys($wanted_code, '', $_configuration['db_prefix']);
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if (!count($keys)) {
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return false;
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}
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$visual_code = $keys['currentCourseCode'];
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$code = $keys['currentCourseId'];
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$db_name = $keys['currentCourseDbName'];
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$directory = $keys['currentCourseRepository'];
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$expiration_date = time() + $firstExpirationDelay;
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prepare_course_repository($directory, $code);
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update_Db_course($db_name);
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$pictures_array = fill_course_repository($directory, $exemplary_content);
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fill_Db_course($db_name, $directory, $course_language, $pictures_array, $exemplary_content);
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register_course($code, $visual_code, $directory, $db_name, $tutor_name, $category_code, $title, $course_language, $user_id, $expiration_date);
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// Mark the request as accepted.
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$sql = "UPDATE ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." SET status = ".COURSE_REQUEST_ACCEPTED." WHERE id = ".$id;
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Database::query($sql);
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// E-mail notification.
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// E-mail language: The platform language seems to be the best choice.
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//$email_language = $course_language;
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//$email_language = api_get_interface_language();
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$email_language = api_get_setting('platformLanguage');
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$email_subject = sprintf(get_lang('CourseRequestAcceptedEmailSubject', null, $email_language), '['.api_get_setting('siteName').']', $wanted_code);
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$email_body = get_lang('Dear', null, $email_language).' ';
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$email_body .= api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $email_language).",\n\n";
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$email_body .= sprintf(get_lang('CourseRequestAcceptedEmailText', null, $email_language), $wanted_code, $code, api_get_path(WEB_COURSE_PATH).$directory.'/')."\n";
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$email_body .= "\n".get_lang('Formula', null, $email_language)."\n";
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$email_body .= api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, null, $email_language)."\n";
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$email_body .= get_lang('Manager', null, $email_language).' '.api_get_setting('siteName')."\n";
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$email_body .= get_lang('Phone', null, $email_language).': '.api_get_setting('administratorTelephone')."\n";
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$email_body .= get_lang('Email', null, $email_language).': '.api_get_setting('emailAdministrator', null, $email_language)."\n";
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$email_body .= "\n".get_lang('CourseRequestLegalNote', null, $email_language)."\n";
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$sender_name = api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, PERSON_NAME_EMAIL_ADDRESS);
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$sender_email = get_setting('emailAdministrator');
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$recipient_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, PERSON_NAME_EMAIL_ADDRESS);
|
|
$recipient_email = $user_info['mail'];
|
|
$extra_headers = 'Bcc: '.$sender_email;
|
|
|
|
@api_mail($recipient_name, $recipient_email, $email_subject, $email_body, $sender_name, $sender_email);
|
|
|
|
return $code;
|
|
}
|
|
|
|
/**
|
|
* Rejects a given course request.
|
|
* @param int/string $id The id (an integer number) of the corresponding database record.
|
|
* @return bool Returns TRUE on success or FALSE on failure.
|
|
*/
|
|
public static function reject_course_request($id) {
|
|
|
|
$id = (int)$id;
|
|
|
|
// Retrieve request's data
|
|
$course_request_info = self::get_course_request_info($id);
|
|
if (!is_array($course_request_info)) {
|
|
return false;
|
|
}
|
|
|
|
$user_id = intval($course_request_info['user_id']);
|
|
if ($user_id <= 0) {
|
|
return false;
|
|
}
|
|
|
|
$user_info = api_get_user_info($user_id);
|
|
if (!is_array($user_info)) {
|
|
return false;
|
|
}
|
|
|
|
$code = $course_request_info['code'];
|
|
|
|
$sql = "UPDATE ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." SET status = ".COURSE_REQUEST_REJECTED." WHERE id = ".$id;
|
|
if (Database::query($sql) === false) {
|
|
return false;
|
|
}
|
|
|
|
// E-mail notification.
|
|
|
|
// E-mail language: The platform language seems to be the best choice.
|
|
//$email_language = $course_language;
|
|
//$email_language = api_get_interface_language();
|
|
$email_language = api_get_setting('platformLanguage');
|
|
|
|
$email_subject = sprintf(get_lang('CourseRequestRejectedEmailSubject', null, $email_language), '['.api_get_setting('siteName').']', $code);
|
|
|
|
$email_body = get_lang('Dear', null, $email_language).' ';
|
|
$email_body .= api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $email_language).",\n\n";
|
|
$email_body .= sprintf(get_lang('CourseRequestRejectedEmailText', null, $email_language), $code)."\n";
|
|
$email_body .= "\n".get_lang('Formula', null, $email_language)."\n";
|
|
$email_body .= api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, null, $email_language)."\n";
|
|
$email_body .= get_lang('Manager', null, $email_language).' '.api_get_setting('siteName')."\n";
|
|
$email_body .= get_lang('Phone', null, $email_language).': '.api_get_setting('administratorTelephone')."\n";
|
|
$email_body .= get_lang('Email', null, $email_language).': '.api_get_setting('emailAdministrator', null, $email_language)."\n";
|
|
$email_body .= "\n".get_lang('CourseRequestLegalNote', null, $email_language)."\n";
|
|
|
|
$sender_name = api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, PERSON_NAME_EMAIL_ADDRESS);
|
|
$sender_email = get_setting('emailAdministrator');
|
|
$recipient_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, PERSON_NAME_EMAIL_ADDRESS);
|
|
$recipient_email = $user_info['mail'];
|
|
$extra_headers = 'Bcc: '.$sender_email;
|
|
|
|
@api_mail($recipient_name, $recipient_email, $email_subject, $email_body, $sender_name, $sender_email);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Asks the author (through e-mail) for additional information about the given course request.
|
|
* @param int/string $id The database primary id of the given request.
|
|
* @return bool Returns TRUE on success or FALSE on failure.
|
|
*/
|
|
public static function ask_for_additional_info($id) {
|
|
|
|
$id = (int)$id;
|
|
|
|
// Retrieve request's data
|
|
$course_request_info = self::get_course_request_info($id);
|
|
if (!is_array($course_request_info)) {
|
|
return false;
|
|
}
|
|
|
|
$user_id = intval($course_request_info['user_id']);
|
|
if ($user_id <= 0) {
|
|
return false;
|
|
}
|
|
|
|
$user_info = api_get_user_info($user_id);
|
|
if (!is_array($user_info)) {
|
|
return false;
|
|
}
|
|
|
|
$code = $course_request_info['code'];
|
|
$info = intval($course_request_info['info']);
|
|
|
|
// Error is to be returned on a repeated attempt for asking additional information.
|
|
if (!empty($info)) {
|
|
return false;
|
|
}
|
|
|
|
// E-mail notification.
|
|
|
|
// E-mail language: The platform language seems to be the best choice.
|
|
//$email_language = $course_language;
|
|
//$email_language = api_get_interface_language();
|
|
$email_language = api_get_setting('platformLanguage');
|
|
|
|
$email_subject = sprintf(get_lang('CourseRequestAskInfoEmailSubject', null, $email_language), '['.api_get_setting('siteName').']', $code);
|
|
|
|
$email_body = get_lang('Dear', null, $email_language).' ';
|
|
$email_body .= api_get_person_name($user_info['firstname'], $user_info['lastname'], null, null, $email_language).",\n\n";
|
|
$email_body .= sprintf(get_lang('CourseRequestAskInfoEmailText', null, $email_language), $code)."\n";
|
|
$email_body .= "\n".get_lang('Formula', null, $email_language)."\n";
|
|
$email_body .= api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, null, $email_language)."\n";
|
|
$email_body .= get_lang('Manager', null, $email_language).' '.api_get_setting('siteName')."\n";
|
|
$email_body .= get_lang('Phone', null, $email_language).': '.api_get_setting('administratorTelephone')."\n";
|
|
$email_body .= get_lang('Email', null, $email_language).': '.api_get_setting('emailAdministrator', null, $email_language)."\n";
|
|
$email_body .= "\n".get_lang('CourseRequestLegalNote', null, $email_language)."\n";
|
|
|
|
$sender_name = api_get_person_name(api_get_setting('administratorName'), api_get_setting('administratorSurname'), null, PERSON_NAME_EMAIL_ADDRESS);
|
|
$sender_email = get_setting('emailAdministrator');
|
|
$recipient_name = api_get_person_name($user_info['firstname'], $user_info['lastname'], null, PERSON_NAME_EMAIL_ADDRESS);
|
|
$recipient_email = $user_info['mail'];
|
|
$extra_headers = 'Bcc: '.$sender_email;
|
|
|
|
$result = @api_mail($recipient_name, $recipient_email, $email_subject, $email_body, $sender_name, $sender_email);
|
|
if (!$result) {
|
|
return false;
|
|
}
|
|
|
|
// Marking the fact that additional information about the request has been asked.
|
|
$sql = "UPDATE ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." SET info = 1 WHERE id = ".$id;
|
|
$result = Database::query($sql) !== false;
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Checks whether additional information about the given course request has been asked.
|
|
* @param int/string $id The database primary id of the given request.
|
|
* @return bool Returns TRUE if additional information has been asked or FALSE otherwise.
|
|
*/
|
|
public static function additional_info_asked($id) {
|
|
$id = (int)$id;
|
|
$sql = "SELECT id FROM ".Database :: get_main_table(TABLE_MAIN_COURSE_REQUEST)." WHERE (id = ".$id." AND info > 0)";
|
|
$result = Database::num_rows(Database::query($sql));
|
|
return !empty($result);
|
|
}
|
|
|
|
}
|
|
|