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authorEvan Prodromou <evan@controlyourself.ca>2009-01-22 21:14:01 +0000
committerEvan Prodromou <evan@controlyourself.ca>2009-01-22 21:14:01 +0000
commit7cd275b982cc1e0255197b623bc54f86e1ba0d1e (patch)
treebc08557c0b596baf3bc608fa572ca8f69e43256b
parenta6fd4eb0a3b22b21940e00251b8964e231036b40 (diff)
A tag cloud section for groups
-rw-r--r--lib/grouptagcloudsection.php87
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;
+ }
+
+}