From 1d4f1f6bf6bd8313cbb51dbf61d675408171d1b8 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@prodromou.name>
Date: Tue, 6 May 2008 11:17:29 -0400
Subject: add standard directories

Added some of the standard directories

darcs-hash:20080506151729-84dde-563da8505e06a7302041c93ab157ced31165876c.gz
---
 _darcs/pristine/actions/tag.php | 165 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 _darcs/pristine/actions/tag.php

(limited to '_darcs/pristine/actions/tag.php')

diff --git a/_darcs/pristine/actions/tag.php b/_darcs/pristine/actions/tag.php
new file mode 100644
index 000000000..25cc853c4
--- /dev/null
+++ b/_darcs/pristine/actions/tag.php
@@ -0,0 +1,165 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * 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/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+require_once(INSTALLDIR.'/actions/showstream.php');
+define('TAGS_PER_PAGE', 100);
+
+class TagAction extends StreamAction {
+
+	function handle($args) {
+
+		parent::handle($args);
+
+		# Looks like we're good; show the header
+
+		if (isset($args['tag']) && $args['tag']) {
+			$tag = $args['tag'];
+			common_show_header(sprintf(_("Notices tagged with %s"), $tag),
+							   array($this, 'show_header'), $tag,
+							   array($this, 'show_top'));
+			$this->show_notices($tag);
+		} else {
+			common_show_header(_("Tags"),
+							   array($this, 'show_header'), '',
+							   array($this, 'show_top'));
+			$this->show_tags();
+		}
+
+		common_show_footer();
+	}
+
+	function show_header($tag = false) {
+		if ($tag) {
+			common_element('link', array('rel' => 'alternate',
+										 'href' => common_local_url('tagrss', array('tag' => $tag)),
+										 'type' => 'application/rss+xml',
+										 'title' => sprintf(_('Feed for tag %s'), $tag)));
+		}
+	}
+
+	function get_instructions() {
+		return _('Showing most popular tags from the last week');
+	}
+
+	function show_top($tag = false) {
+		if (!$tag) {
+			$instr = $this->get_instructions();
+			$output = common_markup_to_html($instr);
+			common_element_start('div', 'instructions');
+			common_raw($output);
+			common_element_end('div');
+			$this->public_views_menu();
+		}
+		else {
+			$this->show_feeds_list(array(0=>array('href'=>common_local_url('tagrss'),
+												  'type' => 'rss',
+												  'version' => 'RSS 1.0',
+												  'item' => 'tagrss')));
+		}
+	}
+
+	function show_tags()
+	{
+		# This should probably be cached rather than recalculated
+		$tags = DB_DataObject::factory('Notice_tag');
+
+		#Need to clear the selection and then only re-add the field
+		#we are grouping by, otherwise it's not a valid 'group by'
+		#even though MySQL seems to let it slide...
+		$tags->selectAdd();
+		$tags->selectAdd('tag');
+
+		#Add the aggregated columns...
+		$tags->selectAdd('max(notice_id) as last_notice_id');
+		if(common_config('db','type')=='pgsql') {
+			$calc='sum(exp(-extract(epoch from (now()-created))/%s)) as weight';
+		} else {
+			$calc='sum(exp(-(now() - created)/%s)) as weight';
+		}
+		$tags->selectAdd(sprintf($calc, common_config('tag', 'dropoff')));
+		$tags->groupBy('tag');
+		$tags->orderBy('weight DESC');
+
+		# $tags->whereAdd('created > "' . strftime('%Y-%m-%d %H:%M:%S', strtotime('-1 MONTH')) . '"');
+
+		$tags->limit(TAGS_PER_PAGE);
+
+		$cnt = $tags->find();
+
+		if ($cnt > 0) {
+			common_element_start('p', 'tagcloud');
+
+			$tw = array();
+			$sum = 0;
+			while ($tags->fetch()) {
+				$tw[$tags->tag] = $tags->weight;
+				$sum += $tags->weight;
+			}
+
+			ksort($tw);
+
+			foreach ($tw as $tag => $weight) {
+				$this->show_tag($tag, $weight, $weight/$sum);
+			}
+
+			common_element_end('p');
+		}
+	}
+
+	function show_tag($tag, $weight, $relative) {
+
+		# XXX: these should probably tune to the size of the site
+		if ($relative > 0.1) {
+			$cls =  'largest';
+		} else if ($relative > 0.05) {
+			$cls = 'verylarge';
+		} else if ($relative > 0.02) {
+			$cls = 'large';
+		} else if ($relative > 0.01) {
+			$cls = 'medium';
+		} else if ($relative > 0.005) {
+			$cls = 'small';
+		} else if ($relative > 0.002) {
+			$cls = 'verysmall';
+		} else {
+			$cls = 'smallest';
+		}
+
+		common_element('a', array('class' => "$cls weight-$weight relative-$relative",
+								  'href' => common_local_url('tag', array('tag' => $tag))),
+					   $tag);
+		common_text(' ');
+	}
+
+	function show_notices($tag) {
+
+		$cnt = 0;
+
+		$page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
+
+		$notice = Notice_tag::getStream($tag, (($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
+
+        $cnt = $this->show_notice_list($notice);
+
+		common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
+						  $page, 'tag', array('tag' => $tag));
+	}
+}
-- 
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