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Robin Millette 2009-04-17 17:23:12 +00:00
parent e5094c3359
commit c024ee935a
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<?php
/**
* Laconica, the distributed open-source microblogging tool
*
* Base class for sections showing tag clouds
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Widget
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @copyright 2009 Control Yourself, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
if (!defined('LACONICA')) {
exit(1);
}
define('TAGS_PER_SECTION', 20);
/**
* Base class for sections
*
* These are the widgets that show interesting data about a person
* group, or site.
*
* @category Widget
* @package Laconica
* @author Evan Prodromou <evan@controlyourself.ca>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://laconi.ca/
*/
class TagCloudSection extends Section
{
function showContent()
{
$tags = $this->getAllTags();
if (!$tags) {
$this->out->element('p', null, _('None'));
return false;
}
$cnt = count($tags);
if ($cnt == 0) {
$this->out->element('p', null, _('(None)'));
return false;
}
ksort($tags);
$this->out->elementStart('ul', 'tags xoxo tag-cloud');
foreach ($tags as $tag => $weight) {
$this->showTag($tag, $weight, ($sum == 0) ? 0 : $weight/$sum);
}
$this->out->elementEnd('ul');
return ($cnt > TAGS_PER_SECTION);
}
function getTags($lst, $usr)
{
$profile_tag = new Profile_tag;
$profile_tag->selectAdd();
$profile_tag->selectAdd('tag');
$profile_tag->selectAdd('count(tag) as weight');
$profile_tag->groupBy('tag');
$profile_tag->orderBy('weight DESC');
$cnt = $profile_tag->find();
$profile_tag->query("
SELECT tag, count(tag) as weight from profile_tag, (SELECT subscriber, subscribed from subscription where subscriber=$usr and subscribed != subscriber) as t where tagger=subscriber and tagged=subscribed group by tag order by weight dest");
$tags = array();
while ($profile_tag->fetch()) {
// var_dump($profile_tag);
$tags[$profile_tag->tag] = $profile_tag->weight;
}
$profile_tag->free();
if (0) {
echo 'tags: <pre>';
var_dump($tags);
echo '</pre>';
}
return $tags;
}
function getAllTags() {
return null;
}
function showTag($tag, $weight, $relative)
{
if ($relative > 0.1) {
$rel = 'tag-cloud-7';
} else if ($relative > 0.05) {
$rel = 'tag-cloud-6';
} else if ($relative > 0.02) {
$rel = 'tag-cloud-5';
} else if ($relative > 0.01) {
$rel = 'tag-cloud-4';
} else if ($relative > 0.005) {
$rel = 'tag-cloud-3';
} else if ($relative > 0.002) {
$rel = 'tag-cloud-2';
} else {
$rel = 'tag-cloud-1';
}
$this->out->elementStart('li', $rel);
$this->out->element('a', array('href' => $this->tagUrl($tag)),
$tag);
$this->out->elementEnd('li');
}
function tagUrl($tag)
{
return common_local_url('tag', array('tag' => $tag));
}
function divId()
{
return 'tagcloud';
}
}