diff options
| -rw-r--r-- | lib/grouptagcloudsection.php | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/lib/grouptagcloudsection.php b/lib/grouptagcloudsection.php new file mode 100644 index 000000000..f05be85cb --- /dev/null +++ b/lib/grouptagcloudsection.php @@ -0,0 +1,87 @@ +<?php +/** + * Laconica, the distributed open-source microblogging tool + * + * 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 + * @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); +} + +/** + * Personal tag cloud section + * + * @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 GroupTagCloudSection extends TagCloudSection +{ + var $group = null; + + function __construct($out=null, $group=null) + { + parent::__construct($out); + $this->group = $group; + } + + function title() + { + return sprintf(_('Tags in %s group\'s notices'), $this->group->nickname); + } + + function getTags() + { + $qry = 'SELECT notice_tag.tag, '. + 'sum(exp(-(now() - notice_tag.created)/%s)) as weight ' . + 'FROM notice_tag JOIN notice ' . + 'ON notice_tag.notice_id = notice.id ' . + 'JOIN group_inbox on group_inbox.notice_id = notice.id ' . + 'WHERE group_inbox.group_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, + common_config('tag', 'dropoff'), + $this->group->id), + 3600); + return $tag; + } + +} |