drupal/modules/rating.module

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<?php
// $Id$
function rating_perm() {
return array("access user ratings");
}
function rating_link($type) {
if ($type == "page" && user_access("access user ratings")) {
$links[] = "<a href=\"module.php?mod=rating\">". t("user ratings") ."</a>";
}
return $links ? $links : array();
}
function rating_conf_options() {
$period = array(3600 => format_interval(3600), 10800 => format_interval(10800), 21600 => format_interval(21600), 32400 => format_interval(32400), 43200 => format_interval(43200), 86400 => format_interval(86400), 172800 => format_interval(172800), 259200 => format_interval(259200), 604800 => format_interval(604800), 1209600 => format_interval(1209600), 1000000000 => "Never");
$output .= form_select("Update interval", "rating_cron_time" , variable_get("rating_cron_time", 86400), $period, "The update interval for the user ratings. Requires crontab.");
$weight = array("Disabled", 1, 2, 3, 4, 5, 6, 7, 9, 10);
foreach (module_list() as $name) {
if (module_hook($name, "user")) {
$output .= form_select("Weight of a $name", "rating_weight_$name", variable_get("rating_weight_$name", 0), $weight, "The weight of a $name.");
}
}
return $output;
}
function rating_cron() {
if (time() - variable_get("rating_cron_last", 0) > variable_get("rating_cron_time", time())) {
variable_set("rating_cron_last", time());
$r1 = db_query("SELECT uid FROM users ORDER BY rating DESC");
while ($account = db_fetch_object($r1)) {
db_query("UPDATE users SET rating = '". rating_gravity($account->uid) ."' WHERE uid = '$account->uid'");
$rating[$account->uid] = ++$i;
}
db_query("DELETE FROM rating");
$r2 = db_query("SELECT uid FROM users ORDER BY rating DESC");
while ($account = db_fetch_object($r2)) {
db_query("INSERT INTO rating (uid, new, old) VALUES ('$account->uid', '". ++$j ."', '". $rating[$account->uid] ."')");
}
}
}
function rating_help() {
?>
<P>The rating cron will periodically calculate each user's gravity, the overall time-weighted rating of each user's contributions.</P>
<?
}
function rating_gravity($uid) {
$period = 5184000; // maximum 60 days
$number = 30; // maximum 30 comments
$r1 = db_query("SELECT nid, type FROM node WHERE uid = '$uid' AND (". time() ." - created < $period) AND status = 1");
while ($node = db_fetch_object($r1)) {
$bonus += variable_get("rating_weight_$node->type", 0);
}
$r2 = db_query("SELECT nid, type FROM node WHERE uid = '$uid' AND (". time() ." - created < $period) AND status = 0");
while ($node = db_fetch_object($r1)) {
$bonus -= variable_get("rating_weight_$node->type", 0);
}
/*
$r3 = db_query("SELECT score, votes FROM comments WHERE uid = '$uid' AND votes > 0 AND (". time() ." - created < $period) ORDER BY created LIMIT $number");
while ($comment = db_fetch_object($r3)) {
$weight++;
$score += $weight * $comment->score;
$votes += $weight * $comment->votes;
}
$bonus += $weight / 5;
*/
return ($votes ? ($score + $weight) / $votes + $bonus : $bonus);
}
function rating_list($limit) {
$result = db_query("SELECT u.rating, u.name, u.uid, r.* FROM users u LEFT JOIN rating r ON u.uid = r.uid ORDER BY u.rating DESC LIMIT $limit");
$output .= "<TABLE CELLPADDING=\"1\" CELLSPACING=\"1\">\n";
while ($account = db_fetch_object($result)) {
$ranking = $account->old - $account->new;
$output .= "<TR><TD ALIGN=\"right\">". ++$i .".</TD><TD>". format_name($account) ."</TD><TD ALIGN=\"right\">". check_output($account->rating) ."</TD><TD>(". ($ranking < 0 ? "" : "+") ."$ranking)</TD></TR>";
}
$output .= "</TABLE>\n";
return $output;
}
function rating_page() {
global $user, $theme;
$theme->header();
if (user_access("access user ratings")) {
$theme->box(t("Top 100 users"), rating_list(100));
}
else {
$theme->box(t("Access denied"), message_access());
}
$theme->footer();
}
function rating_block() {
$block[0][subject] = "Top 10:<BR>users";
$block[0][content] = rating_list(10);
$block[0][info] = "Top 10: users";
return $block;
}
?>