<?php /** * Wikidot - free wiki collaboration software * Copyright (c) 2008, Wikidot Inc. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * For more information about licensing visit: * http://www.wikidot.org/license * * @category Wikidot * @package Wikidot * @version $Id$ * @copyright Copyright (c) 2008, Wikidot Inc. * @license http://www.gnu.org/licenses/agpl-3.0.html GNU Affero General Public License */ class KarmaCalculator { protected $_rules = array(); public function __construct(){ /* Init rules. */ $rulesPath = WIKIDOT_ROOT.'/php/utils/karmarules/'; $files = ls($rulesPath, '*.php'); foreach($files as $f){ require_once($rulesPath.'/'.$f); $cn = str_replace('.php', '', basename($f)); $this->_rules[] = new $cn(); } } public function calculate($user){ $p = 0; foreach($this->_rules as $rule) { $p += $rule->calculate($user); } return $p; } public function update($user){ $p = $this->calculate($user); /* Get the karma object. */ $c = new Criteria(); $c->add('user_id', $user->getUserId()); $karma = DB_UserKarmaPeer::instance()->selectOne($c); if(!$karma){ $karma = new DB_UserKarma(); $karma->setUserId($user->getUserId()); } $karma->setPoints($p); $karma->save(); } public function updateLevels(){ /* How many points you need to have to get to a level. */ $minPointsLevel1 = 30; $minPointsLevel2 = 100; $minPointsLevel3 = 200; $minPointsLevel4 = 300; $minPointsLevel5 = 500; /* Once you pass this limit, we will not take your level5 limit back. */ $keepLevel5Limit = 1000; /* Calculate the distribution. */ $db = Database::$connection; $totalUsers = DB_UserKarmaPeer::instance()->selectCount(); /* Make karma=none for non-active users. */ $q = "UPDATE user_karma SET level=0 WHERE points < $minPointsLevel1"; $db->query($q); /* Calculate total users but excluding these with less that $minPointsLevel1 points. */ $c = new Criteria(); $c->add('points', $minPointsLevel1, '>='); $totalUsers = DB_UserKarmaPeer::instance()->selectCount($c); /* Number of users to fall into a given level. */ $limits = array(); $limitLevel5 = ceil($totalUsers * 0.05); $limitLevel4 = ceil($totalUsers * 0.10); $limitLevel3 = ceil($totalUsers * 0.20); $limitLevel2 = ceil($totalUsers * 0.30); //$c = new Criteria(); //$c->add('points', $minPointsLevel5, '.='); //$c->setLimit() /* Set level one by default. */ $q = array(); $q[] = "UPDATE user_karma SET level=1 WHERE points >= $minPointsLevel1 AND (level < 5 OR points < $keepLevel5Limit)"; $q[] = "UPDATE user_karma SET level=5 WHERE user_id IN (SELECT user_id FROM user_karma WHERE points >= $minPointsLevel5 ORDER BY points DESC LIMIT $limitLevel5)"; $q[] = "UPDATE user_karma SET level=4 WHERE user_id IN (SELECT user_id FROM user_karma WHERE points >= $minPointsLevel4 AND level < 5 ORDER BY points DESC LIMIT $limitLevel4)"; $q[] = "UPDATE user_karma SET level=3 WHERE user_id IN (SELECT user_id FROM user_karma WHERE points >= $minPointsLevel3 AND level < 4 ORDER BY points DESC LIMIT $limitLevel3)"; $q[] = "UPDATE user_karma SET level=2 WHERE user_id IN (SELECT user_id FROM user_karma WHERE points >= $minPointsLevel2 AND level < 3 ORDER BY points DESC LIMIT $limitLevel2)"; $db->query($q); } public function updateAll(){ $offset = 0; $step = 1000; $db = Database::$connection; $db->begin(); while (true) { $users = null; $c = new Criteria(); $c->add("user_id", 0, ">"); $c->addOrderAscending("user_id"); $c->setLimit($step, $offset); $users = DB_OzoneUserPeer::instance()->select($c); if (count($users) == 0) { break; } foreach ($users as $user) { $this->update($user); } $offset += $step; } $this->updateLevels(); $db->commit(); } }