GNUsocial/gnu-social
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show tag cloud in public stream

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This commit is contained in:
Evan Prodromou 2011-04-20 17:17:36 -04:00
parent 4fa7f147b0
commit 0c0aabeda5
2 changed files with 115 additions and 2 deletions
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4
actions/public.php
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@ -226,8 +226,8 @@ class PublicAction extends Action
$ibs->show();
$pop = new PopularNoticeSection($this);
$pop->show();
$gbp = new GroupsByMembersSection($this);
$gbp->show();
$cloud = new PublicTagCloudSection($this);
$cloud->show();
$feat = new FeaturedUsersSection($this);
$feat->show();
}

113
lib/publictagcloudsection.php Normal file
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@ -0,0 +1,113 @@
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Public tag cloud section
*
* 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 StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2009 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Public tag cloud section
*
* @category Widget
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class PublicTagCloudSection extends TagCloudSection
{
function __construct($out=null)
{
parent::__construct($out);
}
function title()
{
// TRANS: Title for inbox tag cloud section.
return _m('TITLE', 'Trending topics');
}
function getTags()
{
$profile = Profile::current();
if (empty($profile)) {
$keypart = sprintf('Notice:public_tag_cloud:null');
} else {
$keypart = sprintf('Notice:public_tag_cloud:%d', $profile->id);
}
$tag = Memcached_DataObject::cacheGet($keypart);
if ($tag === false) {
$stream = new PublicNoticeStream($profile);
$ids = $stream->getNoticeIds(0, 500, null, null);
$weightexpr = common_sql_weight('notice_tag.created', common_config('tag', 'dropoff'));
// @fixme should we use the cutoff too? Doesn't help with indexing per-user.
$qry = 'SELECT notice_tag.tag, '.
$weightexpr . ' as weight ' .
'FROM notice_tag JOIN notice ' .
'ON notice_tag.notice_id = notice.id ' .
'WHERE notice.id in (' . implode(',', $ids) . ')'.
'GROUP BY notice_tag.tag ' .
'ORDER BY weight DESC ';
$limit = TAGS_PER_SECTION;
$offset = 0;
if (common_config('db','type') == 'pgsql') {
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
} else {
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
$t = new Notice_tag();
$t->query($qry);
$tag = array();
while ($t->fetch()) {
$tag[] = clone($t);
}
Memcached_DataObject::cacheSet($keypart, $tag, 60 * 60 * 24);
}
return new ArrayWrapper($tag);
}
function showMore()
{
}
}