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