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