function leavegroup_submit(Pieform $form, $values)
{
global $USER, $SESSION, $groupid, $goto;
group_remove_user($groupid, $USER->get('id'));
$SESSION->add_ok_msg(get_string('leftgroup', 'group'));
redirect($goto);
}
function group_removeuser_submit(Pieform $form, $values)
{
global $SESSION;
$group = (int) $values['group'];
if (group_user_access($group) != 'admin') {
$SESSION->add_error_msg(get_string('accessdenied', 'error'));
redirect('/group/members.php?id=' . $group);
}
group_remove_user($group, $values['member']);
$SESSION->add_ok_msg(get_string('userremoved', 'group'));
redirect('/group/members.php?id=' . $group);
}
/**
* Deletes a user
*
* This function ensures that a user is deleted according to how Mahara wants a
* deleted user to be. You can call it multiple times on the same user without
* harm.
*
* @param int $userid The ID of the user to delete
*/
function delete_user($userid)
{
db_begin();
// We want to append 'deleted.timestamp' to some unique fields in the usr
// table, so they can be reused by new accounts
$fieldstomunge = array('username', 'email');
$datasuffix = '.deleted.' . time();
$user = get_record('usr', 'id', $userid, null, null, null, null, implode(', ', $fieldstomunge));
$deleterec = new StdClass();
$deleterec->id = $userid;
$deleterec->deleted = 1;
foreach ($fieldstomunge as $field) {
if (!preg_match('/\\.deleted\\.\\d+$/', $user->{$field})) {
$deleterec->{$field} = $user->{$field} . $datasuffix;
}
}
// Set authinstance to default internal, otherwise the old authinstance can be blocked from deletion
// by deleted users.
$authinst = get_field('auth_instance', 'id', 'institution', 'mahara', 'authname', 'internal');
if ($authinst) {
$deleterec->authinstance = $authinst;
}
update_record('usr', $deleterec);
// Remove user from any groups they're in, invited to or want to be in
$groupids = get_column('group_member', '"group"', 'member', $userid);
if ($groupids) {
require_once get_config('libroot') . 'group.php';
foreach ($groupids as $groupid) {
group_remove_user($groupid, $userid, true);
}
}
delete_records('group_member_request', 'member', $userid);
delete_records('group_member_invite', 'member', $userid);
// Remove any friend relationships the user is in
execute_sql('DELETE FROM {usr_friend}
WHERE usr1 = ?
OR usr2 = ?', array($userid, $userid));
execute_sql('DELETE FROM {usr_friend_request}
WHERE owner = ?
OR requester = ?', array($userid, $userid));
delete_records('artefact_access_usr', 'usr', $userid);
delete_records('auth_remote_user', 'localusr', $userid);
delete_records('import_queue', 'usr', $userid);
delete_records('usr_account_preference', 'usr', $userid);
delete_records('usr_activity_preference', 'usr', $userid);
delete_records('usr_infectedupload', 'usr', $userid);
delete_records('usr_institution', 'usr', $userid);
delete_records('usr_institution_request', 'usr', $userid);
delete_records('usr_password_request', 'usr', $userid);
delete_records('usr_watchlist_view', 'usr', $userid);
delete_records('view_access', 'usr', $userid);
// Remove the user's views & artefacts
$viewids = get_column('view', 'id', 'owner', $userid);
if ($viewids) {
require_once get_config('libroot') . 'view.php';
foreach ($viewids as $viewid) {
$view = new View($viewid);
$view->delete();
}
}
$artefactids = get_column('artefact', 'id', 'owner', $userid);
// @todo: test all artefact bulk_delete stuff, then replace the one-by-one
// artefact deletion below with ArtefactType::delete_by_artefacttype($artefactids);
if ($artefactids) {
foreach ($artefactids as $artefactid) {
try {
$a = artefact_instance_from_id($artefactid);
$a->delete();
} catch (ArtefactNotFoundException $e) {
// Awesome, it's already gone.
}
}
}
db_commit();
handle_event('deleteuser', $userid);
}
continue;
}
if (!in_array($loggedinrole, call_static_method('GroupType' . $groupdata[$groupid]->grouptype, 'get_view_assessing_roles'))) {
json_reply('local', get_string('accessdenied', 'error'));
}
if (group_user_access($groupid, $userid) && in_array($groupid, array_diff($initialgroups, $resultgroups))) {
json_reply('local', get_string('cantremovememberfromgroup', 'group', hsc($groupdata[$groupid]->name)));
}
}
if ($addtype == 'add') {
db_begin();
//remove group membership
if ($groupstoremove = array_diff($initialgroups, $resultgroups)) {
$groupstoremovemail = '';
foreach ($groupstoremove as $groupid) {
group_remove_user($groupid, $userid, $role = null);
$groupstoremovemail .= $groupdata[$groupid]->name . "\n";
}
}
//add group membership
if ($groupstoadd = array_diff($resultgroups, $initialgroups)) {
$groupstoaddmail = '';
foreach ($groupstoadd as $groupid) {
group_add_user($groupid, $userid, $role = null);
$groupstoaddmail .= $groupdata[$groupid]->name . "\n";
}
}
db_commit();
// Users notification
$userrecord = get_record('usr', 'id', $userid);
$lang = get_user_language($userid);
