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provide the back-end for a directory tag cloud

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This commit is contained in:
friendica 2013-09-17 22:52:46 -07:00
parent d3aa31be4d
commit f7acc94bfe
2 changed files with 69 additions and 1 deletions
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60
include/taxonomy.php
View File

@ -99,6 +99,7 @@ function format_term_for_display($term) {
function tagadelic($uid, $count = 0, $authors = '', $flags = 0, $type = TERM_HASHTAG) {
$sql_options = '';
$count = intval($count);
if($flags)
$sql_options .= " and ((item_flags & " . intval($flags) . ") = " . intval($flags) . ") ";
@ -157,6 +158,47 @@ function tags_sort($a,$b) {
}
function dir_tagadelic($count = 0) {
$sql_options = '';
$count = intval($count);
// Fetch tags
$r = q("select xtag_term, count(xtag_term) as total from xtag
group by term order by total desc %s",
((intval($count)) ? "limit $count" : '')
);
if(! $r)
return array();
// Find minimum and maximum log-count.
$tags = array();
$min = 1e9;
$max = -1e9;
$x = 0;
foreach($r as $rr) {
$tags[$x][0] = $rr['xtag_term'];
$tags[$x][1] = log($rr['total']);
$tags[$x][2] = 0;
$min = min($min,$tags[$x][1]);
$max = max($max,$tags[$x][1]);
$x ++;
}
usort($tags,'tags_sort');
$range = max(.01, $max - $min) * 1.0001;
for($x = 0; $x < count($tags); $x ++) {
$tags[$x][2] = 1 + floor(5 * ($tags[$x][1] - $min) / $range);
}
return $tags;
}
function tagblock($link,$uid,$count = 0,$authors = '',$flags = 0,$type = TERM_HASHTAG) {
$o = '';
$tab = 0;
@ -172,6 +214,24 @@ function tagblock($link,$uid,$count = 0,$authors = '',$flags = 0,$type = TERM_HA
return $o;
}
function dir_tagblock($link,$r) {
$o = '';
$tab = 0;
if($r) {
$o = '<div class="dirtagblock widget"><h3>' . t('Keywords') . '</h3><div class="tags" align="center">';
foreach($r as $rr) {
$o .= '<a href="'.$link .'/' . '?f=&keyword=' . urlencode($rr['term']).'" class="tag'.$rr['weight'].'">'.$rr['term'].'</a> ' . "\r\n";
}
$o .= '</div></div>';
}
return $o;
}
/**
* verbs: [0] = first person singular, e.g. "I want", [1] = 3rd person singular, e.g. "Bill wants"

10
mod/dirsearch.php
View File

@ -175,7 +175,15 @@ function dirsearch_content(&$a) {
}
$ret['results'] = $entries;
if(! $sync) {
$k = dir_tagadelic(24);
if($k) {
$ret['keywords'] = array();
foreach($k as $kv) {
$ret['keywords'][] = array('term' => $kv[0],'weight' => $kv[1]);
}
}
}
}
json_return_and_die($ret);