mirror of
https://github.com/WhatCD/Gazelle.git
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61 lines
1.9 KiB
PHP
61 lines
1.9 KiB
PHP
<?
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//global $Cache, $DB;
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include(SERVER_ROOT.'/sections/torrents/ranking_funcs.php');
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$Top10 = $Cache->get_value('similar_albums_'.$GroupID);
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if ($Top10 === False || isset($Top10[$GroupID])) {
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$VotePairs = $Cache->get_value('vote_pairs_'.$GroupID, true);
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if ($VotePairs === False || isset($VotePairs[$GroupID])) {
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$DB->query("
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SELECT v.GroupID, SUM(IF(v.Type='Up',1,0)) AS Ups, COUNT(1) AS Total
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FROM ( SELECT UserID
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FROM users_votes
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WHERE GroupID = $GroupID
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AND Type='Up'
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) AS a
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JOIN users_votes AS v USING (UserID)
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WHERE v.GroupID != $GroupID
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GROUP BY v.GroupID
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HAVING Ups > 0");
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$VotePairs = $DB->to_array('GroupID', MYSQL_ASSOC, false);
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$Cache->cache_value('vote_pairs_'.$GroupID, $VotePairs);
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}
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$GroupScores = array();
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foreach ($VotePairs as $RatingGroup) {
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// Cutting out the junk should speed the sort significantly
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$Score = binomial_score($RatingGroup['Ups'], $RatingGroup['Total']);
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if ($Score > 0.3) {
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$GroupScores[$RatingGroup['GroupID']] = binomial_score($RatingGroup['Ups'], $RatingGroup['Total']);
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}
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}
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arsort($GroupScores);
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$Top10 = array_slice($GroupScores, 0, 10, true);
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$Cache->cache_value('similar_albums_'.$GroupID, $Top10, 0.5 * 3600);
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}
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if (count($Top10) > 0) {
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?>
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<table class="vote_matches_table" id="vote_matches">
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<tr class="colhead">
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<td><a href="#">↑</a> People who like this album also liked... <a href="#" onclick="$('.votes_rows').toggle(); return false;">(Show)</a></td>
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</tr>
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<?
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$Top10Groups = array_keys($Top10);
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$Groups = Torrents::get_groups($Top10Groups, true, true, false);
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$i = 0;
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foreach ($Groups['matches'] as $MatchGroupID => $MatchGroup) {
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$i++;
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$Str = Artists::display_artists($MatchGroup['ExtendedArtists']).'<a href="torrents.php?id='.$MatchGroupID.'">'.$MatchGroup['Name'].'</a>';
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?>
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<tr class="votes_rows hidden <?=($i % 2 ? 'rowb' : 'rowa')?>">
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<td><span class="like_ranks"><?=$i?>.</span> <?=$Str?></td>
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</tr>
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<? } ?>
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</table>
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<?
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}
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?>
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