gnu-social/actions/tag.php

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<?php
/*
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* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, 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/>.
*/
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if (!defined('GNUSOCIAL')) { exit(1); }
// @todo FIXME: documentation missing.
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class TagAction extends ManagedAction
{
var $notice;
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var $tag;
var $page;
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protected function prepare(array $args=array())
{
parent::prepare($args);
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$taginput = $this->trimmed('tag');
$this->tag = common_canonical_tag($taginput);
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if (empty($this->tag)) {
throw new ClientException(_('No valid tag data.'));
}
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// after common_canonical_tag we have a lowercase, no-specials tag string
if ($this->tag !== $taginput) {
common_redirect(common_local_url('tag', array('tag' => $this->tag)), 301);
}
$this->page = ($this->arg('page')) ? ($this->arg('page')+0) : 1;
common_set_returnto($this->selfUrl());
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$this->notice = Notice_tag::getStream($this->tag)->getNotices(($this->page-1)*NOTICES_PER_PAGE,
NOTICES_PER_PAGE + 1);
if($this->page > 1 && $this->notice->N == 0){
// TRANS: Client error when page not found (404).
$this->clientError(_('No such page.'), 404);
}
return true;
}
function title()
{
if ($this->page == 1) {
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// TRANS: Title for first page of notices with tags.
// TRANS: %s is the tag.
return sprintf(_('Notices tagged with %s'), $this->tag);
} else {
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// TRANS: Title for all but the first page of notices with tags.
// TRANS: %1$s is the tag, %2$d is the page number.
return sprintf(_('Notices tagged with %1$s, page %2$d'),
$this->tag,
$this->page);
}
}
function getFeeds()
{
return array(new Feed(Feed::JSON,
common_local_url('ApiTimelineTag',
array('format' => 'as',
'tag' => $this->tag)),
// TRANS: Link label for feed on "notices with tag" page.
// TRANS: %s is the tag the feed is for.
sprintf(_('Notice feed for tag %s (Activity Streams JSON)'),
$this->tag)),
new Feed(Feed::RSS1,
common_local_url('tagrss',
array('tag' => $this->tag)),
// TRANS: Link label for feed on "notices with tag" page.
// TRANS: %s is the tag the feed is for.
sprintf(_('Notice feed for tag %s (RSS 1.0)'),
$this->tag)),
new Feed(Feed::RSS2,
common_local_url('ApiTimelineTag',
array('format' => 'rss',
'tag' => $this->tag)),
// TRANS: Link label for feed on "notices with tag" page.
// TRANS: %s is the tag the feed is for.
sprintf(_('Notice feed for tag %s (RSS 2.0)'),
$this->tag)),
new Feed(Feed::ATOM,
common_local_url('ApiTimelineTag',
array('format' => 'atom',
'tag' => $this->tag)),
// TRANS: Link label for feed on "notices with tag" page.
// TRANS: %s is the tag the feed is for.
sprintf(_('Notice feed for tag %s (Atom)'),
$this->tag)));
}
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protected function showContent()
{
if(Event::handle('StartTagShowContent', array($this))) {
$nl = new PrimaryNoticeList($this->notice, $this, array('show_n'=>NOTICES_PER_PAGE));
$cnt = $nl->show();
$this->pagination($this->page > 1, $cnt > NOTICES_PER_PAGE,
$this->page, 'tag', array('tag' => $this->tag));
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Event::handle('EndTagShowContent', array($this));
}
}
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function isReadOnly($args)
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{
return true;
}
}