/**
* Group deleted
*
* @param \core\event\group_deleted $event
* @return void
*/
public static function group_deleted(\core\event\group_deleted $event)
{
global $DB;
$group = $event->get_record_snapshot('groups', $event->objectid);
$courseids = local_metagroups_parent_courses($group->courseid);
foreach ($courseids as $courseid) {
$course = get_course($courseid);
if ($metagroup = $DB->get_record('groups', array('courseid' => $course->id, 'idnumber' => $group->id))) {
groups_delete_group($metagroup);
}
}
}
/**
* Delete a group best effort, first removing members and links with courses and groupings.
* Removes group avatar too.
*
* @param mixed $grouporid The id of group to delete or full group object
* @return bool True if deletion was successful, false otherwise
*/
function groups_delete_group($grouporid)
{
global $CFG, $DB;
require_once "{$CFG->libdir}/gdlib.php";
if (is_object($grouporid)) {
$groupid = $grouporid->id;
$group = $grouporid;
} else {
$groupid = $grouporid;
if (!($group = $DB->get_record('groups', array('id' => $groupid)))) {
//silently ignore attempts to delete missing already deleted groups ;-)
return true;
}
}
// delete group calendar events
$DB->delete_records('event', array('groupid' => $groupid));
//first delete usage in groupings_groups
$DB->delete_records('groupings_groups', array('groupid' => $groupid));
//delete members
$DB->delete_records('groups_members', array('groupid' => $groupid));
//group itself last
$DB->delete_records('groups', array('id' => $groupid));
// Delete all files associated with this group
$context = context_course::instance($group->courseid);
$fs = get_file_storage();
$fs->delete_area_files($context->id, 'group', 'description', $groupid);
$fs->delete_area_files($context->id, 'group', 'icon', $groupid);
// Invalidate the grouping cache for the course
cache_helper::invalidate_by_definition('core', 'groupdata', array(), array($group->courseid));
// Trigger group event.
$params = array('context' => $context, 'objectid' => $groupid);
$event = \core\event\group_deleted::create($params);
$event->add_record_snapshot('groups', $group);
$event->trigger();
return true;
}
/**
* group_deleted
*
* @param \core\event\group_deleted $event Event object containing useful data
* @return bool true if success
*/
public static function group_deleted(\core\event\group_deleted $event)
{
global $CFG, $DB;
$data = $event->get_record_snapshot('groups', $event->objectid);
$course = $DB->get_record('course', array('id' => $data->courseid), '*', MUST_EXIST);
if (!($grouptools = get_all_instances_in_course('grouptool', $course))) {
return true;
}
$grouprecreated = false;
$agrpids = array();
foreach ($grouptools as $grouptool) {
$cmid = $grouptool->coursemodule;
switch ($grouptool->ifgroupdeleted) {
default:
case GROUPTOOL_RECREATE_GROUP:
if (!$grouprecreated) {
$newid = $DB->insert_record('groups', $data, true);
if ($newid !== false) {
// Delete auto-inserted agrp.
if ($DB->record_exists('grouptool_agrps', array('groupid' => $newid))) {
$DB->delete_records('grouptool_agrps', array('groupid' => $newid));
}
// Update reference.
if ($DB->record_exists('grouptool_agrps', array('groupid' => $data->id))) {
$DB->set_field('grouptool_agrps', 'groupid', $newid, array('groupid' => $data->id));
}
// Trigger event!
$logdata = array('cmid' => $cmid, 'groupid' => $data->id, 'newid' => $newid, 'courseid' => $data->courseid);
\mod_grouptool\event\group_recreated::create_from_object($logdata)->trigger();
if ($grouptool->immediate_reg) {
require_once $CFG->dirroot . '/mod/grouptool/locallib.php';
$instance = new mod_grouptool($cmid, $grouptool);
$instance->push_registrations();
}
$grouprecreated = true;
} else {
print_error('error', 'moodle');
return false;
}
} else {
if ($grouptool->immediate_reg) {
require_once $CFG->dirroot . '/mod/grouptool/locallib.php';
$instance = new mod_grouptool($cmid, $grouptool);
$instance->push_registrations();
}
}
break;
case GROUPTOOL_DELETE_REF:
if ($agrpid = $DB->get_field('grouptool_agrps', 'id', array('groupid' => $data->id, 'grouptoolid' => $grouptool->id))) {
$agrpids[] = $agrpid;
}
break;
}
}
if (count($agrpids) > 0) {
$agrps = $DB->get_records_list('grouptool_agrps', 'id', $agrpids);
$cms = array();
$regs = $DB->get_records_list('grouptool_registered', 'agrpid', $agrpids);
$DB->delete_records_list('grouptool_registered', 'agrpid', $agrpids);
foreach ($regs as $cur) {
if (empty($cms[$agrps[$cur->agrpid]->grouptoolid])) {
$cms[$agrps[$cur->agrpid]->grouptoolid] = get_coursemodule_from_instance('grouptool', $agrps[$cur->agrpid]->grouptoolid);
}
$cur->groupid = $agrps[$cur->agrpid]->groupid;
\mod_grouptool\event\registration_deleted::create_via_eventhandler($cms[$agrps[$cur->agrpid]->grouptoolid], $cur);
}
$queues = $DB->get_records_list('grouptool_queued', 'agrpid', $agrpids);
$DB->delete_records_list('grouptool_queued', 'agrpid', $agrpids);
foreach ($queues as $cur) {
if (empty($cms[$agrps[$cur->agrpid]->grouptoolid])) {
$cms[$agrps[$cur->agrpid]->grouptoolid] = get_coursemodule_from_instance('grouptool', $agrps[$cur->agrpid]->grouptoolid);
}
// Trigger event!
$cur->groupid = $agrps[$cur->agrpid]->groupid;
\mod_grouptool\event\queue_entry_deleted::create_via_eventhandler($cms[$agrps[$cur->agrpid]->grouptoolid], $cur);
}
$DB->delete_records_list('grouptool_agrps', 'id', $agrpids);
foreach ($agrps as $cur) {
if (empty($cms[$cur->grouptoolid])) {
$cms[$cur->grouptoolid] = get_coursemodule_from_instance('grouptool', $cur->grouptoolid);
}
// Trigger event!
$logdata = new stdClass();
$logdata->id = $cur->id;
$logdata->cmid = $cms[$cur->grouptoolid]->id;
$logdata->groupid = $cur->groupid;
$logdata->agrpid = $cur->id;
$logdata->courseid = $data->courseid;
\mod_grouptool\event\agrp_deleted::create_from_object($logdata);
}
}
return true;
}
