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- <?php // $Id: course_import.php 8216 2006-03-15 16:33:13Z turboke $
- /*
- ==============================================================================
- Dokeos - elearning and course management software
- Copyright (c) 2008 Dokeos SPRL
- Copyright (c) 2005 Bart Mollet <bart.mollet@hogent.be>
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- See the GNU General Public License for more details.
- Contact: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium, info@dokeos.com
- ==============================================================================
- */
- /**
- ==============================================================================
- * This tool allows platform admins to create courses by uploading a CSV file
- * @todo Add some langvars to DLTT
- * @package dokeos.admin
- ==============================================================================
- */
- /**
- * Validates imported data.
- */
- function validate_data($courses) {
- global $_configuration;
- global $purification_option_for_usernames;
- $dbnamelength = strlen($_configuration['db_prefix']);
- //Ensure the prefix + database name do not get over 40 characters
- $maxlength = 40 - $dbnamelength;
- $errors = array ();
- $coursecodes = array ();
- foreach ($courses as $index => $course) {
- $course['line'] = $index +1;
- // 1. Check whether mandatory fields are set.
- $mandatory_fields = array ('Code', 'Title', 'CourseCategory', 'Teacher');
- foreach ($mandatory_fields as $key => $field) {
- if (!isset($course[$field]) || strlen($course[$field]) == 0) {
- $course['error'] = get_lang($field.'Mandatory');
- $errors[] = $course;
- }
- }
- // 2. Check current course code.
- if (isset ($course['Code']) && strlen($course['Code']) != 0) {
- // 2.1 Check whether code has been allready used by this CVS-file.
- if (isset ($coursecodes[$course['Code']])) {
- $course['error'] = get_lang('CodeTwiceInFile');
- $errors[] = $course;
- }
- // 2.2 Check course code length.
- elseif (api_strlen($course['Code']) > $maxlength) {
- $course['error'] = get_lang('Max');
- $errors[] = $course;
- }
- // 2.3 Check whether course code has been occupied.
- else {
- $course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
- $sql = "SELECT * FROM $course_table WHERE code = '".Database::escape_string($course['Code'])."'";
- $res = Database::query($sql, __FILE__, __LINE__);
- if (Database::num_rows($res) > 0) {
- $course['error'] = get_lang('CodeExists');
- $errors[] = $course;
- }
- }
- $coursecodes[$course['Code']] = 1;
- }
- // 3. Check whether teacher exists.
- if (!UserManager::is_username_empty($course['Teacher'])) {
- $teacher = UserManager::purify_username($course['Teacher'], $purification_option_for_usernames);
- if (UserManager::is_username_available($teacher)) {
- $course['error'] = get_lang('UnknownTeacher').' ('.$teacher.')';
- $errors[] = $course;
- }
- }
- // 4. Check whether course category exists.
- if (isset ($course['CourseCategory']) && strlen($course['CourseCategory']) != 0) {
- $category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
- $sql = "SELECT * FROM $category_table WHERE code = '".Database::escape_string($course['CourseCategory'])."'";
- $res = Database::query($sql, __FILE__, __LINE__);
- if (Database::num_rows($res) == 0) {
- $course['error'] = get_lang('UnkownCategory').' ('.$course['CourseCategory'].')';
- $errors[] = $course;
- }
- }
- }
- return $errors;
- }
- /**
- * Saves imported data.
- * @param array List of courses
- */
- function save_data($courses) {
- global $_configuration, $firstExpirationDelay;
- global $purification_option_for_usernames;
- $msg = '';
- foreach ($courses as $index => $course) {
- $course_language = api_validate_language($course['Language']);
- $keys = define_course_keys($course['Code'], '', $_configuration['db_prefix']);
- $user_table = Database::get_main_table(TABLE_MAIN_USER);
- $sql = "SELECT user_id, ".(api_is_western_name_order(null, $course_language) ? "CONCAT(firstname,' ',lastname)" : "CONCAT(lastname,' ',firstname)")." AS name FROM $user_table WHERE username = '".Database::escape_string(UserManager::purify_username($course['Teacher'], $purification_option_for_usernames))."'";
- $res = Database::query($sql,__FILE__,__LINE__);
- $teacher = Database::fetch_object($res);
- $visual_code = $keys['currentCourseCode'];
- $code = $keys['currentCourseId'];
- $db_name = $keys['currentCourseDbName'];
- $directory = $keys['currentCourseRepository'];
- $expiration_date = time() + $firstExpirationDelay;
- prepare_course_repository($directory, $code);
- update_Db_course($db_name);
- fill_course_repository($directory);
- fill_Db_course($db_name, $directory, $course_language, array());
- register_course($code, $visual_code, $directory, $db_name, $teacher->name, $course['CourseCategory'], $course['Title'], $course_language, $teacher->user_id, $expiration_date);
- $msg .= '<a href="'.api_get_path(WEB_COURSE_PATH).$directory.'/">'.$code.'</a> '.get_lang('Created').'<br />';
- }
- if (!empty($msg)) {
- Display::display_normal_message($msg,false);
- }
- }
- /**
- * Read the CSV-file
- * @param string $file Path to the CSV-file
- * @return array All course-information read from the file
- */
- function parse_csv_data($file) {
- $courses = Import :: csv_to_array($file);
- return $courses;
- }
- $language_file = array ('admin', 'registration','create_course', 'document');
- $cidReset = true;
- include '../inc/global.inc.php';
- $this_section = SECTION_PLATFORM_ADMIN;
- api_protect_admin_script();
- require_once api_get_path(LIBRARY_PATH).'fileManage.lib.php';
- require_once api_get_path(LIBRARY_PATH).'import.lib.php';
- require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
- require_once api_get_path(CONFIGURATION_PATH).'add_course.conf.php';
- require_once api_get_path(LIBRARY_PATH).'add_course.lib.inc.php';
- require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
- $defined_auth_sources[] = PLATFORM_AUTH_SOURCE;
- if (is_array($extAuthSource)) {
- $defined_auth_sources = array_merge($defined_auth_sources, array_keys($extAuthSource));
- }
- $tool_name = get_lang('ImportCourses').' CSV';
- $interbreadcrumb[] = array ('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));
- set_time_limit(0);
- Display :: display_header($tool_name);
- if ($_POST['formSent']) {
- if (empty($_FILES['import_file']['tmp_name'])) {
- $error_message = get_lang('UplUploadFailed');
- Display :: display_error_message($error_message, false);
- } else {
- $file_type = $_POST['file_type'];
- $courses = parse_csv_data($_FILES['import_file']['tmp_name']);
- $errors = validate_data($courses);
- if (count($errors) == 0) {
- //$users = complete_missing_data($courses);
- save_data($courses);
- //header('Location: user_list.php?action=show_message&message='.urlencode(get_lang('FileImported')));
- //exit ();
- }
- }
- }
- if (count($errors) != 0) {
- $error_message = '<ul>';
- foreach ($errors as $index => $error_course) {
- $error_message .= '<li>'.get_lang('Line').' '.$error_course['line'].': <b>'.$error_course['error'].'</b>: ';
- $error_message .= $error_course['Code'].' '.$error_course['Title'];
- $error_message .= '</li>';
- }
- $error_message .= '</ul>';
- Display :: display_error_message($error_message, false);
- }
- ?>
- <form method="post" action="<?php echo api_get_self(); ?>" enctype="multipart/form-data" style="margin:0px;">
- <div class="row"><div class="form_header"><?php echo $tool_name; ?></div></div>
- <div class="row">
- <div class="label"><?php echo get_lang('ImportCSVFileLocation');?></div>
- <div class="formw">
- <input type="file" name="import_file"/>
- </div>
- </div>
- <div class="row">
- <div class="label"></div>
- <div class="formw">
- <button type="submit" class="save" value="<?php echo get_lang('Import'); ?>"><?php echo get_lang('Import'); ?></button>
- </div>
- </div>
- <input type="hidden" name="formSent" value="1"/>
- </form>
- <div style="clear: both;"></div>
- <p><?php echo get_lang('CSVMustLookLike').' ('.get_lang('MandatoryFields').')'; ?> :</p>
- <blockquote>
- <pre>
- <b>Code</b>;<b>Title</b>;<b>CourseCategory</b>;<b>Teacher</b>;Language
- BIO0015;Biology;BIO;username;english
- </pre>
- </blockquote>
- <?php
- Display :: display_footer();
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