personaltagcloudsection.php 2.75 KB
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<?php
/**
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 * StatusNet, the distributed open-source microblogging tool
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 *
 * Personal 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
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 * @package   StatusNet
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 * @author    Evan Prodromou <evan@status.net>
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 * @copyright 2009 StatusNet, 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://status.net/
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 */

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if (!defined('GNUSOCIAL')) { exit(1); }
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/**
 * Personal tag cloud section
 *
 * @category Widget
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 * @package  StatusNet
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 * @author   Evan Prodromou <evan@status.net>
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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://status.net/
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 */
class PersonalTagCloudSection extends TagCloudSection
{
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    protected $profile = null;
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    function __construct(Profile $profile, HTMLOutputter $out=null)
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    {
        parent::__construct($out);
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        $this->profile = $profile;
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    }

    function title()
    {
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        // TRANS: Title for personal tag cloud section.
        return _m('TITLE','Tags');
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    }

    function getTags()
    {
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        $weightexpr = common_sql_weight('notice_tag.created', common_config('tag', 'dropoff'));
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        // @fixme should we use the cutoff too? Doesn't help with indexing per-user.
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        $qry = 'SELECT notice_tag.tag, '.
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          $weightexpr . ' as weight ' .
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          'FROM notice_tag JOIN notice ' .
          'ON notice_tag.notice_id = notice.id ' .
          'WHERE notice.profile_id = %d ' .
          '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;
        }

        $tag = Memcached_DataObject::cachedQuery('Notice_tag',
                                                 sprintf($qry,
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                                                         $this->profile->getID()),
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                                                 3600);
        return $tag;
    }
}