root/trunk/robots/refresh_cache_friend.bot.php

#!/usr/bin/php
<?
include ('../includes/includes.inc.php');
include ('../includes/config/global.inc.php');

$db =& DB::connect($dsn);
if (DB::isError($db))
                error_log($_SERVER['HTTP_HOST'].' | '.__FILE__.' | Connexion SQL impossible : '.$db->getMessage());

$db->setFetchMode(DB_FETCHMODE_ASSOC);

$users_r = $db->query('SELECT id  FROM user');
while($user = $users_r->fetchRow())
{
    $nb_friends = $db->getOne('SELECT COUNT(id_friend) FROM relation WHERE id=?', array($user['id']) );
    $friends_id = $db->getCol('SELECT id FROM relation WHERE id_friend=? ORDER BY last_visit DESC', 0, array($user['id']));

    $cache_values= array(
    'nb_friends' => $nb_friends,
    'friends_id' => implode(',',$friends_id)
    );


    $result = $db->autoExecute('cache_user', $cache_values, DB_AUTOQUERY_UPDATE, "id='".$user['id']."'");

    $i++;

    if(DB::isError($result))
        print $result->getUserInfo();
    else
        print $i.'. '.$user['id']." ($nb_friends)\n";

}

$db->disconnect();
print "\n";
?>