function run($dbi, $argstr, &$request, $basepage)
{
extract($this->getArgs($argstr, $request));
// XXX: fix to reflect multi-user ratings?
$caption = _("Displaying %d ratings:");
$active_user = $request->getUser();
$active_userid = $active_user->_userid;
// check for request to display a category's ratings
if (isset($category) && is_string($category) && strlen($category)) {
$pageids = array();
$category_page = $dbi->getPage($category);
$iter = $category_page->getLinks();
while ($item = $iter->next()) {
array_push($pageids, $item->getName());
}
// XXX: is there a way to retrieve the preferred plural
// representation of a category name?
// XXX: should the category text be a link? can it be one easily?
$caption = sprintf(_("Showing all %ss (%%d):"), $category);
} elseif (!isset($pageids) || !is_array($pageids)) {
// XXX: need support for sorted ratings
// bug: pages excluded from the PageList via the "exclude" argument
// count toward the limit!
$pageids = array();
$active_user_ratings_user =& RatingsUserFactory::getUser($active_user->getId());
$current_user_ratings = $active_user_ratings_user->get_ratings();
if ($userPage) {
//we're on a user's homepage, get *their* ratings
$this_page_user =& RatingsUserFactory::getUser($userPage);
$caption = _("Here are {$userPage}" . "'s %d page ratings:");
$ratings = $this_page_user->get_ratings();
} else {
$caption = _("Here are your %d page ratings:");
$ratings = $current_user_ratings;
}
$i = 0;
foreach ($ratings as $pagename => $page_ratings) {
// limit is currently only honored for "own" ratings
if ($limit > 0 && $i >= $limit) {
break;
}
if (isset($page_ratings[$dimension])) {
array_push($pageids, $pagename);
$i++;
}
}
// $caption = _("Here are your %d page ratings:");
//make $ratings the user's ratings again if it had been treated as the current page
// name's ratings
$ratings = $current_user_ratings;
}
// if userids is null or empty, fill it with just the active user
if (!isset($userids) || !is_array($userids) || !count($userids)) {
// TKL: moved getBuddies call inside if statement because it was
// causing the userids[] parameter to be ignored
if (is_string($active_userid) && strlen($active_userid) && $active_user->isSignedIn() && !$userPage) {
if (isset($category_page)) {
$userids = getBuddies($active_userid, $dbi, $category_page->getName());
} else {
$userids = getBuddies($active_userid, $dbi);
}
} elseif ($userPage) {
//we're on a user page, show that user's ratings as the only column
$userids = array();
array_push($userids, $userPage);
} else {
$userids = array();
// XXX: this wipes out the category caption...
// $caption = _("You must be logged in to view ratings.");
}
}
// find out which users we should show ratings for
// users allowed in the prediction calculation
$allowed_users = array();
// users actually allowed to be shown to the user
$allowed_users_toshow = array();
foreach ($userids as $userid) {
$user =& RatingsUserFactory::getUser($userid);
if ($user->allow_view_ratings($active_user)) {
array_push($allowed_users_toshow, $user);
}
// all users should be allowed in calculation
array_push($allowed_users, $user);
// This line ensures $user is not a reference type after this loop
// If it is a reference type, that can produce very unexpected behavior!
unset($user);
}
// if no buddies, use allusers in prediction calculation
if (count($userids) == 0 || $userPage) {
$allowed_users = array();
//$people_iter = $dbi->get_users_rated();
$people_dbi = RatingsDb::getTheRatingsDb();
$people_iter = $people_dbi->sql_get_users_rated();
while ($people_array = $people_iter->next()) {
$userid = $people_array['pagename'];
$user =& RatingsUserFactory::getUser($userid);
array_push($allowed_users, $user);
}
}
$columns = $info ? explode(",", $info) : array();
// build our table...
$pagelist = new PageList($columns, $exclude, array('dimension' => $dimension, 'users' => $allowed_users_toshow));
// augment columns
//$preds = new _PageList_Column_prediction('prediction', _("Pred"), 'right', $dimension, $allowed_users);
$preds = array('_PageList_column_prediction', 'custom:prediction', _("Pred"), 'right', ' ', $allowed_users);
$pagelist->addColumnObject($preds);
//$widget = new _PageList_Column_ratingwidget('ratingwidget', _("Rate"), 'left', $dimension);
$widget = array('_PageList_column_ratingwidget', 'custom:ratingwidget', _("Rate"), 'center');
$pagelist->addColumnObject($widget);
$noRatingUsers = array();
if (!$nobuds) {
foreach ($allowed_users_toshow as $idx => $user) {
// For proper caching behavior, get a ref, don't user $user
$u =& $allowed_users_toshow[$idx];
//$col = new _PageList_Column_ratingvalue('ratingvalue', $u->getId(), 'right', $dimension, $u);
$col = array('_PageList_Column_ratingvalue', 'custom:ratingvalue', $u->getId(), 'right', ' ', $u);
$pagelist->addColumnObject($col);
unset($u);
}
}
// add rows -- each row represents an item (page)
foreach ($pageids as $pagename) {
// addPage can deal with cases where it is passed a string
$pagelist->addPage($pagename);
}
if (!$noheader) {
$pagelist->setCaption(_($caption));
}
return $pagelist;
}
/**
* TODO: slow item-based recommendation engine, similar to suggest RType=2.
* Only the SUGGEST_EstimateAlpha part
* Take wikilens/RatingsUser.php for the php methods.
*/
function php_prediction($userid = null, $pagename = null, $dimension = null)
{
if (is_null($dimension)) {
$dimension = $this->dimension;
}
if (is_null($userid)) {
$userid = $this->userid;
}
if (is_null($pagename)) {
$pagename = $this->pagename;
}
if (empty($this->buddies)) {
require_once "lib/wikilens/RatingsUser.php";
require_once "lib/wikilens/Buddy.php";
$user = RatingsUserFactory::getUser($userid);
$this->buddies = getBuddies($user, $GLOBALS['request']->_dbi);
}
return $user->knn_uu_predict($pagename, $this->buddies, $dimension);
}
function _PageList_Column_prediction($params)
{
global $request;
$active_user = $request->getUser();
// This needs to be a reference so things aren't recomputed for this user
$this->_active_ratings_user =& RatingsUserFactory::getUser($active_user->getId());
$this->_pagelist =& $params[3];
$this->_PageList_Column($params[0], $params[1], $params[2]);
$this->_dimension = $this->_pagelist->getOption('dimension');
$this->_users = $this->_pagelist->getOption('users');
}