Source for file lib_event_digest.php

<?php
/*
 * Lokorin.com
 * Copyright 2004-2006
 * Licensed under the GNU LGPL. See COPYING for full terms.
 */
/**
 * A library that contains functions for digesting information about important
 * events and relaying it to the webmaster.
 * @author Andreas Launila
 * @version $Revision: 1.6 $
 * @package com.lokorin.lokorin.lib
 * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
 */
 
/**
 * For access to common constants and functions.
 */
require_once('common.php');
 
/**
 * Performs all the event digest work available.
 * @throws Exception If something goes wrong.
 * @access public
 */
function doEventDigest() {
    checkErrors();
    checkMplfArchive();
    return true;
}
 
/**
 * Checks if there are any unresolved errors that should be sent to the
 * webmaster.
 * @access private
 */
function checkErrors() {
    global $db;
    
    $mailMessage = '';
    $mailTitle = 'Digest: ';
    
    //Check for errors
    $rows = $db->querySelect(TABLE_ERRORS, 
            array('message', 'timestamp'),
            "WHERE investigated != 1");
    if(count($rows) > 0) {
        $mailTitle .= sizeof($rows).' Errors';
        foreach($rows as $row) {
            $mailMessage .= 'Error ('.date(DATE_LONG, $row['timestamp']).
                '): "'.$row['message'].'"'."\r\n\r\n";
        }
        sendDigestEmail($mailTitle, $mailMessage);
    }
}
 
/**
 * Checks if there are any filters or suggested modifications awaiting
 * approval.
 * @access private
 */
function checkMplfArchive() {
    global $db;
    
    //Check for filters
    $count = $db->queryCount(TABLE_MPLF_FILTERS, 
            $db->buildSqlSelector(array('moderator_id' => 0)));
    if($count != 0) {
        sendDigestEmail('Digest: '.$count.' filter awaiting approval', 
            'There are currently '.$count.' filters that need approval ' .
            'at http://www.lokorin.com/mplf/mod/approve.php .');
    }
    
    //Check for changes
    $count = $db->queryCount(TABLE_MPLF_CHANGES);
    if($count != 0) {
        sendDigestEmail('Digest: '.$count.' changes awaiting approval', 
            'There are currently '.$count.' changes that need approval ' .
            'at http://www.lokorin.com/mplf/mod/changes.php .');
    }
}
 
/**
 * Sends a digest email to the webmaster.
 * @param string $title The title of the email.
 * @param string $message The message body of the email.
 * @access private
 */
function sendDigestEmail($title, $message) {
    doInclude('lib_util');
    sendEmail($title, $message, 'lokobot@lokorin.com');
}
?>