public function getMemberCount()
{
$key = sprintf("group:member_count:%d", $this->id);
$cnt = self::cacheGet($key);
if (is_integer($cnt)) {
return (int) $cnt;
}
$mem = new Group_member();
$mem->group_id = $this->id;
// XXX: why 'distinct'?
$cnt = (int) $mem->count('distinct profile_id');
self::cacheSet($key, $cnt);
return $cnt;
}
