public static function get($groupID, $skipExistsCheck = false)
{
if (!$groupID) {
throw new Exception('$groupID not set');
}
if (isset(self::$groups[$groupID])) {
$group = self::$groups[$groupID];
if ($group->erased) {
unset(self::$groups[$groupID]);
return false;
}
return $group;
}
$group = new Zotero_Group();
$group->id = $groupID;
if (!$skipExistsCheck && !$group->exists()) {
return false;
}
self::$groups[$groupID] = $group;
return self::$groups[$groupID];
}
