$user_course)
{
$user_course['line'] = $index +1;
//1. check if mandatory fields are set
$mandatory_fields = array ('UserName', 'CourseCode', 'Status');
foreach ($mandatory_fields as $key => $field)
{
if (!isset ($user_course[$field]) || strlen($user_course[$field]) == 0)
{
$user_course['error'] = get_lang($field.'Mandatory');
$errors[] = $user_course;
}
}
//2. check if coursecode exists
if (isset ($user_course['CourseCode']) && strlen($user_course['CourseCode']) != 0)
{
//2.1 check if code allready used in this CVS-file
if (!isset ($coursecodes[$user_course['CourseCode']]))
{
//2.1.1 check if code exists in DB
$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$sql = "SELECT * FROM $course_table WHERE code = '".mysql_real_escape_string($user_course['CourseCode'])."'";
$res = api_sql_query($sql, __FILE__, __LINE__);
if (mysql_num_rows($res) == 0)
{
$user_course['error'] = get_lang('CodeDoesNotExists');
$errors[] = $user_course;
}
else
{
$coursecodes[$user_course['CourseCode']] = 1;
}
}
}
//3. check if username exists
if (isset ($user_course['UserName']) && strlen($user_course['UserName']) != 0)
{
if (UserManager :: is_username_available($user_course['UserName']))
{
$user_course['error'] = get_lang('UnknownUser');
$errors[] = $user_course;
}
}
//4. check if status is valid
if (isset ($user_course['Status']) && strlen($user_course['Status']) != 0)
{
if ($user_course['Status'] != COURSEMANAGER && $user_course['Status'] != STUDENT)
{
$user_course['error'] = get_lang('UnknownStatus');
$errors[] = $user_course;
}
}
}
return $errors;
}
/**
* Save the imported data
*/
function save_data($users_courses) {
$user_table= Database::get_main_table(TABLE_MAIN_USER);
$course_user_table= Database::get_main_table(TABLE_MAIN_COURSE_USER);
$csv_data = array();
foreach ($users_courses as $index => $user_course) {
$csv_data[$user_course['UserName']][$user_course['CourseCode']] = $user_course['Status'];
}
foreach($csv_data as $username => $csv_subscriptions) {
$user_id = 0;
$sql = "SELECT * FROM $user_table u WHERE u.username = '".mysql_real_escape_string($username)."'";
$res = api_sql_query($sql,__FILE__,__LINE__);
$obj = mysql_fetch_object($res);
$user_id = $obj->user_id;
$sql = "SELECT * FROM $course_user_table cu WHERE cu.user_id = $user_id";
$res = api_sql_query($sql,__FILE__,__LINE__);
$db_subscriptions = array();
while($obj = Database::fetch_object($res)) {
$db_subscriptions[$obj->course_code] = $obj->status;
}
//echo 'User '.$username.'
';
$to_subscribe = array_diff(array_keys($csv_subscriptions),array_keys($db_subscriptions));
$to_unsubscribe = array_diff(array_keys($db_subscriptions),array_keys($csv_subscriptions));
// echo '';
// echo "CSV SUBSCRIPTION\n";
// print_r($csv_subscriptions);
// echo "DB SUBSCRIPTION\n";
// print_r($db_subscriptions);
// echo "TO SUBSCRIBE\n";
// print_r($to_subscribe);
// echo "TO UNSUBSCRIBE\n";
// print_r($to_unsubscribe);
// echo '
';
global $inserted_in_course;
if (!isset($inserted_in_course)) { $inserted_in_course = array(); }
if($_POST['subscribe']) {
foreach($to_subscribe as $index => $course_code) {
if(CourseManager :: course_exists($course_code)) {
CourseManager::add_user_to_course($user_id,$course_code,$csv_subscriptions[$course_code]);
$c_info = CourseManager::get_course_information($course_code);
$inserted_in_course[$course_code] = $c_info['title'];
}
if (CourseManager :: course_exists($course_code,true)) {
// also subscribe to virtual courses through check on visual code
$list = CourseManager :: get_courses_info_from_visual_code($course_code);
foreach ($list as $vcourse) {
if ($vcourse['code'] == $course_code) {
//ignore, this has already been inserted
} else {
CourseManager::add_user_to_course($user_id,$vcourse['code'],$csv_subscriptions[$course_code]);
$inserted_in_course[$vcourse['code']] = $vcourse['title'];
}
}
}
//echo get_lang('Subscription').' : '.$course_code.'
';
}
}
if($_POST['unsubscribe']) {
foreach($to_unsubscribe as $index => $course_code) {
if(CourseManager :: course_exists($course_code)) {
CourseManager::unsubscribe_user($user_id,$course_code);
$c_info = CourseManager::get_course_information($course_code);
$inserted_in_course[$course_code] = $c_info['title'];
}
if (CourseManager :: course_exists($course_code,true)) {
// also subscribe to virtual courses through check on visual code
$list = CourseManager :: get_courses_info_from_visual_code($course_code);
foreach ($list as $vcourse) {
if ($vcourse['code'] == $course_code) {
//ignore, this has already been inserted
} else {
CourseManager::unsubscribe_user($user_id,$vcourse['code']);
$inserted_in_course[$vcourse['code']] = $vcourse['title'];
}
}
}
//echo get_lang('Unsubscription').' : '.$course_code.'
';
}
}
}
}
/**
* 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;
}
// name of the language file that needs to be included
$language_file = array ('admin', 'registration');
$cidReset = true;
include ('../inc/global.inc.php');
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(LIBRARY_PATH).'course.lib.php');
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
$formSent = 0;
$errorMsg = '';
$tool_name = get_lang('AddUsersToACourse').' CSV';
$interbreadcrumb[] = array ('url' => 'index.php', 'name' => get_lang('PlatformAdmin'));
set_time_limit(0);
$form = new FormValidator('course_user_import');
$form->addElement('file','import_file', get_lang('ImportFileLocation'));
$form->addElement('checkbox','subscribe',get_lang('Action'),get_lang('SubscribeUserIfNotAllreadySubscribed'));
$form->addElement('checkbox','unsubscribe','',get_lang('UnsubscribeUserIfSubscriptionIsNotInFile'));
$form->addElement('submit','submit',get_lang('Ok'));
if ($form->validate()) {
$users_courses = parse_csv_data($_FILES['import_file']['tmp_name']);
$errors = validate_data($users_courses);
if (count($errors) == 0) {
$inserted_in_course = array();
save_data($users_courses);
// Build the alert message in case there were visual codes subscribed to
if ($_POST['subscribe']) {
$warn = get_lang('UsersSubscribedToBecauseVisualCode').': ';
} else {
$warn = get_lang('UsersUnsubscribedFromBecauseVisualCode').': ';
}
if (count($inserted_in_course) > 1) {
// The users have been inserted in more than one course
foreach ($inserted_in_course as $code => $info) {
$warn .= ' '.$info.' ('.$code.'),';
}
$warn = substr($warn,0,-1);
}
Security::clear_token();
$tok = Security::get_token();
header('Location: user_list.php?action=show_message&message='.urlencode(get_lang('FileImported')).'&warn='.urlencode($warn).'&sec_token='.$tok);
exit ();
}
}
Display :: display_header($tool_name);
api_display_tool_title($tool_name);
if (count($errors) != 0) {
$error_message = '';
foreach ($errors as $index => $error_course) {
$error_message .= '- '.get_lang('Line').' '.$error_course['line'].': '.$error_course['error'].': ';
$error_message .= $error_course['Code'].' '.$error_course['Title'];
$error_message .= '
';
}
$error_message .= '
';
Display :: display_error_message($error_message);
}
$form->display();
?>
:
UserName;CourseCode;Status
jdoe;course01;
a.dam;course01;
';
echo STUDENT.': '.get_lang('Student').'
';
?>