libdir.'/moodlelib.php');
$success = true;
$courseid = required_param('courseid', PARAM_INT);
$groupingid = required_param('grouping', PARAM_INT);
$groupid = required_param('group', PARAM_INT);
// Get the course information so we can print the header and
// check the course id is valid
$course = groups_get_course_info($courseid);
if (! $course) {
$success = false;
print_error('invalidcourse');
}
if (empty($groupid)) {
$success = false;
print_error('errorinvalidgroup', 'group', groups_home_url($courseid));
}
if ($success) {
// Make sure that the user has permissions to manage groups.
require_login($courseid);
$context = get_context_instance(CONTEXT_COURSE, $courseid);
if (! has_capability('moodle/course:managegroups', $context)) {
redirect();
}
if ($frm = data_submitted() and confirm_sesskey()) {
if (isset($frm->cancel)) {
redirect('index.php?id='. $courseid
.'&grouping='. $groupingid .'&group='. $groupid);
}
elseif (isset($frm->add) and !empty($frm->addselect)) {
foreach ($frm->addselect as $userid) {
if (! $userid = clean_param($userid, PARAM_INT)) {
continue;
}
$success = groups_add_member($groupid, $userid);
if (! $success) {
print_error('erroraddremoveuser', 'group', groups_home_url($courseid));
}
}
}
elseif (isset($frm->remove) and !empty($frm->removeselect)) {
foreach ($frm->removeselect as $userid) {
if (! $userid = clean_param($userid, PARAM_INT)) {
continue;
}
$success = groups_remove_member($groupid, $userid);
if (! $success) {
print_error('erroraddremoveuser', 'group', groups_home_url($courseid));
}
}
}
}
$groupmembers = groups_get_members($groupid);
$groupmembersoptions = '';
$groupmemberscount = 0;
if ($groupmembers != false) {
// Put the groupings into a hash and sorts them
foreach ($groupmembers as $userid) {
$listmembers[$userid] = groups_get_user_displayname($userid, $courseid);
$groupmemberscount ++;
}
natcasesort($listmembers);
// Print out the HTML
foreach($listmembers as $id => $name) {
$groupmembersoptions .= "\n";
}
} else {
$groupmembersoptions .= '';
}
//TODO: If no 'showall' button, then set true.
$showall = true;
$potentialmembers = array();
$potentialmembersoptions = '';
$potentialmemberscount = 0;
if (!$showall && $groupingid != GROUP_NOT_IN_GROUPING) {
$potentialmembers = groups_get_users_not_in_any_group_in_grouping($courseid, $groupingid, $groupid);
} else {
$potentialmembers = groups_get_users_not_in_group($courseid, $groupid);
}
if ($potentialmembers != false) {
// Put the groupings into a hash and sorts them
foreach ($potentialmembers as $userid) {
$nonmembers[$userid] = groups_get_user_displayname($userid, $courseid);
$potentialmemberscount++;
}
natcasesort($nonmembers);
// Print out the HTML
foreach($nonmembers as $id => $name) {
$potentialmembersoptions .= "\n";
}
} else {
$potentialmembersoptions .= '';
}
// Print the page and form
$strgroups = get_string('groups');
$strparticipants = get_string('participants');
$groupname = groups_get_group_displayname($groupid);
print_header("$course->shortname: $strgroups",
$course->fullname,
"wwwroot/course/view.php?id=$courseid\">$course->shortname ".
"-> wwwroot/user/index.php?id=$courseid\">$strparticipants ".
'-> $strgroups".
'-> '. get_string('adduserstogroup', 'group'), '', '', true, '', user_login_string($course, $USER));
?>