/**
* Recursive function to remove subscriptions for a teacher in a context
*/
function mumiemodule_remove_teacher_subscriptions($userid, $context)
{
global $CFG;
if (empty($context->contextlevel)) {
return false;
}
switch ($context->contextlevel) {
case CONTEXT_SYSTEM:
// For the whole site
if ($courses = get_records('course')) {
foreach ($courses as $course) {
$subcontext = get_context_instance(CONTEXT_COURSE, $course->id);
mumiemodule_remove_user_subscriptions($userid, $subcontext);
}
}
break;
case CONTEXT_COURSECAT:
// For a whole category
if ($courses = get_records('course', 'category', $context->instanceid)) {
foreach ($courses as $course) {
$subcontext = get_context_instance(CONTEXT_COURSE, $course->id);
mumiemodule_remove_user_subscriptions($userid, $subcontext);
}
}
if ($categories = get_records('course_categories', 'parent', $context->instanceid)) {
foreach ($categories as $category) {
$subcontext = get_context_instance(CONTEXT_COURSECAT, $category->id);
mumiemodule_remove_user_subscriptions($userid, $subcontext);
}
}
break;
case CONTEXT_COURSE:
// For a whole course
if ($course = get_record('course', 'id', $context->instanceid)) {
if ($mumiemodules = get_all_instances_in_course('mumiemodule', $course, $userid, true)) {
foreach ($mumiemodules as $mumiemodule) {
if ($modcontext = get_context_instance(CONTEXT_MODULE, $mumiemodule->coursemodule)) {
$course_to_change = new object();
$course_to_change->syncid = 'moodle-' . $CFG->prefix . 'course-' . $course->id;
$course_to_change->name = $course->fullname;
$course_to_change->description = $course->summary;
$course_to_change->semester = 'moodle-' . $CFG->prefix . 'course_categories-' . $course->category;
$course_to_change->lecturers = '';
$context = get_context_instance(CONTEXT_COURSE, $course->id);
$fields = 'u.id, u.username, u.password, u.firstname, u.lastname';
$roleid = get_field('role', 'id', 'shortname', 'editingteacher');
if ($lecturers = get_role_users($roleid, $context, false, $fields)) {
foreach ($lecturers as $lecturer) {
if ($userid != $lecturer->id) {
$course_to_change->lecturers .= 'moodle-' . $CFG->prefix . 'user-' . $lecturer->id . ' ';
}
}
}
change_class_for_mumie($course_to_change);
}
}
}
}
break;
case CONTEXT_MODULE:
// Just one mumiemodule
if ($cm = get_coursemodule_from_id('mumiemodule', $context->instanceid)) {
if ($mumiemodule = get_record('mumiemodule', 'id', $cm->instance)) {
//nix zu tun, da keine teacher im modul stehen
}
}
break;
}
return true;
}
/**
* Function to handle the category_deleted-event
*
* @param object $eventdata - the event's data
*/
function category_deleted_handler($eventdata)
{
global $CFG;
$isinteresting = false;
//we assume that this is not relevant - check!
//if there is no class with an instance of mumiemodule in the parent category, then we can be sure that this event is not interesting
//but if there is at least one, we can not be sure - so we better try to send all information
if ($cat_classes = get_courses($semester->parent, 'c.id')) {
foreach ($cat_classes as $cat_class) {
if (record_exists('mumiemodule', 'course', $cat_class->id)) {
$isinteresting = true;
break;
}
}
}
if ($isinteresting) {
event_logoutput("category_deleted_handler called \n", $eventdata);
$js = new JapsSynchronise();
$deletedsem = new object();
$deletedsem->syncid = 'moodle-' . $CFG->prefix . 'course_categories-' . $eventdata->id;
$deletedsem->parent = 'moodle-' . $CFG->prefix . 'course_categories-' . $eventdata->parent;
//we try to insert the parent-category as a new semester into MUMIE
$cat = get_record('course_categories', 'id', $eventdata->parent, '', '', '', '', 'name');
$newsemester = new object();
$newsemester->syncid = $deletedsem->parent;
$newsemester->name = $cat->name;
$newsemester->description = 'a Moodle-category as semester';
insert_semester_for_mumie($newsemester, $js);
//the courses were moved from the deleted category into the parent category
//so we have to change them before deleting the category
if ($cat_classes = get_courses($semester->parent, $fields = 'c.id')) {
//TODO: isn't this deprecated???
foreach ($cat_classes as $cat_class) {
if (record_exists('mumiemodule', 'course', $cat_class->id)) {
$classtochange = new object();
$classtochange->syncid = 'moodle-' . $CFG->prefix . 'course-' . $cat_class->id;
$classtochange->semester = $deletedsem->parent;
change_class_for_mumie($classtochange, $js);
}
}
}
//delete_semester_for_mumie($deletedsem);
}
return true;
}
