Add tag action

darcs-hash:20080720081838-533db-bfe217657f0c3327fa8facc66b41b00f6c8f1948.gz

actions/tag.php

@@ -0,0 +1,185 @@
+<?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', 2);
+
+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 (false && $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($output);
+			common_element_end('div');
+		}
+
+		common_element_start('ul', array('id' => 'nav_views'));
+
+		common_menu_item(common_local_url('tags'),
+						 _('Recent Tags'),
+						 _('Recent Tags'),
+						 !$tag);
+		if ($tag) {
+			common_menu_item(common_local_url('tag', array('tag' => $tag)),
+							 '#' . $tag,
+							 sprintf(_("Notices tagged with %s"), $tag),
+							 true);
+		}
+		common_element_end('ul');
+	}
+
+	function show_tags()
+	{
+		$tags = DB_DataObject::factory('Notice_tag');
+		$tags->selectAdd('count(1) as num');
+		$tags->selectAdd('max(notice_id) as last_notice_id');
+		$tags->groupBy('tag');
+		$tags->orderBy('num DESC');
+		$tags->whereAdd('created > "' . strftime('%Y-%m-%d %H:%M:%S', strtotime('-1 WEEK')) . '"');
+
+		$page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
+
+		$tags->limit((($page-1)*TAGS_PER_PAGE), TAGS_PER_PAGE + 1);
+
+		$cnt = $tags->find();
+
+		if ($cnt > 0) {
+			common_element_start('ul', array('id' => 'notices'));
+			for ($i = 0; $i < min($cnt, TAGS_PER_PAGE); $i++) {
+				if ($tags->fetch()) {
+					TagAction::show_tag($tags);
+				} else {
+					// shouldn't happen!
+					break;
+				}
+			}
+			common_element_end('ul');
+		}
+
+		common_pagination($page > 1, $cnt > TAGS_PER_PAGE,
+						  $page, 'tags');
+	}
+
+	private static function show_tag($tag) {
+		common_element_start('li', array('class' => 'notice_single'));
+		common_element_start('a', array(
+							'class' => 'nickname',
+							'href' => common_local_url('tag', array('tag' => $tag->tag)),
+							'title' => sprintf(_("Notices tagged with %s"), $tag->tag)));
+		common_text('#' . $tag->tag);
+		common_element_end('a');
+		common_text(sprintf(_('%s Notices recently tagged with %s'), $tag->num, $tag->tag));
+
+		$notice = Notice::staticGet($tag->last_notice_id);
+		if ($notice) {
+			$noticeurl = common_local_url('shownotice', array('notice' => $notice->id));
+			common_element_start('p', 'time');
+			common_text(_('Last message posted: '));
+			common_element('a', array('class' => 'permalink',
+									  'href' => $noticeurl,
+									  'title' => common_exact_date($notice->created)),
+						   	common_date_string($notice->created));
+
+			common_text(_(' by '));
+			$profile = $notice->getProfile();
+			common_element('a', array('href' => $profile->profileurl),
+						   $profile->nickname);
+			common_element_end('p');
+		}
+		common_element_end('li');
+	}
+
+
+	function show_notices($tag) {
+
+		$tags = DB_DataObject::factory('Notice_tag');
+
+		$tags->tag = $tag;
+
+		$tags->orderBy('created DESC');
+
+		$page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
+
+		$tags->limit((($page-1)*NOTICES_PER_PAGE), NOTICES_PER_PAGE + 1);
+
+		$cnt = $tags->find();
+
+		if ($cnt > 0) {
+			common_element_start('ul', array('id' => 'notices'));
+			for ($i = 0; $i < min($cnt, NOTICES_PER_PAGE); $i++) {
+				if ($tags->fetch()) {
+					$notice = new Notice();
+					$notice->id = $tags->notice_id;
+					$result = $notice->find(true);
+					if (!$result) {
+						continue;
+					}
+					$this->show_notice($notice);
+				} else {
+					// shouldn't happen!
+					break;
+				}
+			}
+			common_element_end('ul');
+		}
+
+		common_pagination($page > 1, $cnt > NOTICES_PER_PAGE,
+						  $page, 'tag', array('tag' => $tag));
+	}
+}