static function saveNew($user_id, $action, $arg1, $arg2)
{
$channel = new Realtime_channel();
$channel->user_id = $user_id;
$channel->action = $action;
$channel->arg1 = $arg1;
$channel->arg2 = $arg2;
$channel->audience = 1;
$channel->channel_key = common_good_rand(16);
// 128-bit key, 32 hex chars
$channel->created = common_sql_now();
$channel->modified = $channel->created;
$channel->insert();
return $channel;
}
