/
tags.php
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/
tags.php
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<?php
###############################################################################
# Gregarius - A PHP based RSS aggregator.
# Copyright (C) 2003 - 2006 Marco Bonetti
#
###############################################################################
# This program is free software and open source software; you can redistribute
# it and/or modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 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 General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit
# http://www.gnu.org/licenses/gpl.html
#
###############################################################################
# E-mail: mbonetti at gmail dot com
# Web page: http://gregarius.net/
#
###############################################################################
require_once ('init.php');
function relatedTags($tags) {
/* related tags */
$twhere = "";
foreach ($tags as $tag) {
$tag = rss_real_escape_string($tag);
$twhere .= "t.tag='$tag' or ";
}
$twhere .= "1=0";
$sql = "select fid,tid,m.tdate from ".getTable('metatag') ." m "
."inner join " . getTable('tag') . " t on t.id = m.tid where m.ttype = 'item'"
." and ($twhere)";
//echo $sql;
$res = rss_query($sql);
$fids = array ();
$ctid = -1;
while (list ($fid, $tid) = rss_fetch_row($res)) {
$fids[] = $fid;
$tids[] = $tid;
}
$fids = array_unique($fids);
$tids = array_unique($tids);
$rtags = array ();
if (count($fids)) {
$sql = "select t.tag, count(*) as cnt from ".getTable('metatag')
." m left join ".getTable('item')." i on (m.fid=i.id) "
." inner join " . getTable('tag')." t on (t.id = m.tid) "
." where m.fid in (".implode(",", $fids).")"
." and t.id not in (".implode(",", $tids).")";
if (hidePrivate()) {
$sql .= " and not(i.unread & ".RSS_MODE_PRIVATE_STATE.") ";
}
$sql .= " group by t.tag order by cnt desc";
//echo $sql;
$res = rss_query($sql);
while ((list ($rtag, $cnt) = rss_fetch_row($res))) {
$rtags[$rtag] = $cnt;
}
}
return $rtags;
}
if (array_key_exists('tag', $_GET)) {
// while this one displays a list of items for the requested tag(s)
$tag = strip_tags($_GET['tag']);
$twhere = "";
$tarr = explode(" ", $tag);
$hrTag = implode(" ".__('and')." ", $tarr);
$urlTag = implode("+", $tarr);
foreach ($tarr as $ttkn) {
$twhere .= " t.tag='".trim(rss_real_escape_string($ttkn))."' or";
}
$twhere .= " 1=0";
$sql = "select fid, count(*) as cnt from " . getTable('metatag')." m "
."inner join " . getTable('tag')." t on t.id = m.tid "
." where ($twhere) "
." and m.ttype = 'item'"
." group by fid order by 2 desc";
$res = rss_query($sql);
$ids = array ();
while ((list ($id, $cnt) = rss_fetch_row($res)) && $cnt >= count($tarr)) {
$ids[] = $id;
}
$gotsome = count($ids) > 0;
$taggedItems = new PaginatedItemList();
if ($gotsome) {
$sqlWhere = " i.id in (".implode(",", $ids).") ";
// include deprecated feeds while showing tags.
$taggedItems->populate($sqlWhere, "", 0, 1, ITEM_SORT_HINT_MIXED, true);
$rtags = relatedTags($tarr);
$related = array ();
foreach ($rtags as $rtag => $cnt) {
$relLbl = "<a href=\"".getPath().""
. (getConfig('rss.output.usemodrewrite') ? "tag/$rtag" : "tags.php?tag=$rtag").""."\">$rtag</a>";
$relPlus = array_key_exists($rtag, $taggedItems->allTags);
if ($relPlus) {
$relLbl .= sprintf(
' [<a title="%d %s %s \'%s %s %s"\' href="%s+%s">+</a>]',
$cnt,
$cnt > 1 ? __('items') : __('item'),
$cnt > 1 || $cnt == 0 ? __('tagged') : __('tagged'),
htmlspecialchars($hrTag,ENT_QUOTES),
__('and'),
htmlspecialchars($rtag,ENT_QUOTES),
getPath(getConfig('rss.output.usemodrewrite') ? "tag/$rtag" : "tags.php?tag=$rtag"),
htmlspecialchars($urlTag,ENT_QUOTES)
);
" [<a "."title=\"$cnt "
. ($cnt > 1 ? __('items') : __('item'))." ". ($cnt > 1 || $cnt == 0 ? __('tagged') : __('tagged'))." '"
.htmlspecialchars($hrTag,ENT_QUOTES)." ".__('and')." ".htmlspecialchars($rtag,ENT_QUOTES)."'\" "
."href=\"".getPath().""
. (getConfig('rss.output.usemodrewrite') ? "tag/$rtag" : "tags.php?tag=$rtag").""
."+".$urlTag."\">+</a>]";
}
$idx = ($relPlus ? $taggedItems->allTags[$rtag] : 0);
$related["$idx"."_"."$rtag"] = $relLbl."";
}
krsort($related);
}
// done! Render some stuff
if (array_key_exists('rss', $_REQUEST)) {
rss_require('cls/rdf.php');
// RSS view
$title = _TITLE_." - ".__('Tags')." - ".$hrTag;
$baselink = guessTransportProto().$_SERVER['HTTP_HOST'].getPath()
. (getConfig('rss.output.usemodrewrite') ? "tag/" : "tags.php?tag=");
if ($gotsome) {
$rdf = new RDFItemList($taggedItems);
} else {
$rdf = new RDFItemList(null);
}
$rdf->baselink = $baselink;
$rdf->resource = $urlTag;
$rdf->render($title);
exit ();
} else {
// HTML view
//rss_header("Tags " . TITLE_SEP . " " . $hrTag);
$GLOBALS['rss']->header = new Header("Tags ".TITLE_SEP." ".$hrTag);
$GLOBALS['rss']->feedList = new FeedList(false);
//echo "\n\n<div id=\"items\" class=\"frame\">\n";
if ($gotsome) {
$title = $taggedItems->numItems." ". ($taggedItems->numItems > 1 ? __('items') : __('item'))." "
. ($taggedItems->numItems > 1 || $taggedItems->numItems == 0 ? __('tagged') : __('tagged'))
.""." \"".$hrTag."\"";
if (count($related)) {
$taggedItems->beforeList = "\n<p>".__('Related tags: ')."\n".implode(", \n", $related)."\n</p>\n";
}
$taggedItems->setTitle($title);
$taggedItems->setRenderOptions(IL_NO_COLLAPSE|IL_TITLE_NO_ESCAPE);
$GLOBALS['rss']->appendContentObject($taggedItems);
$GLOBALS['rss']->renderWithTemplate('index.php', 'items');
} else {
$GLOBALS['rss']->renderWithTemplate('index.php', 'items');
}
}
} elseif (array_key_exists('alltags', $_GET)) {
rss_require('cls/alltags.php');
$GLOBALS['rss']->header = new Header("Tags ".TITLE_SEP." ".__('All Tags'));
$GLOBALS['rss']->feedList = new FeedList(false);
$allTags = new Tags();
$allTags->setRenderOptions(IL_TITLE_NO_ESCAPE);
$GLOBALS['rss']->appendContentObject($allTags);
$GLOBALS['rss']->renderWithTemplate('index.php', 'items');
}
?>