/**
* get a list of all display names in a group
* @param string $gid
* @param string $search
* @param int $limit
* @param int $offset
* @return array an array of display names (value) and user ids (key)
*/
public function displayNamesInGroup($gid, $search = '', $limit = -1, $offset = 0)
{
$group = $this->get($gid);
if (is_null($group)) {
return array();
}
$search = trim($search);
$groupUsers = array();
if (!empty($search)) {
// only user backends have the capability to do a complex search for users
$searchOffset = 0;
$searchLimit = $limit * 100;
if ($limit === -1) {
$searchLimit = 500;
}
do {
$filteredUsers = $this->userManager->searchDisplayName($search, $searchLimit, $searchOffset);
foreach ($filteredUsers as $filteredUser) {
if ($group->inGroup($filteredUser)) {
$groupUsers[] = $filteredUser;
}
}
$searchOffset += $searchLimit;
} while (count($groupUsers) < $searchLimit + $offset && count($filteredUsers) >= $searchLimit);
if ($limit === -1) {
$groupUsers = array_slice($groupUsers, $offset);
} else {
$groupUsers = array_slice($groupUsers, $offset, $limit);
}
} else {
$groupUsers = $group->searchUsers('', $limit, $offset);
}
$matchingUsers = array();
foreach ($groupUsers as $groupUser) {
$matchingUsers[$groupUser->getUID()] = $groupUser->getDisplayName();
}
return $matchingUsers;
}
