nextcloud/apps/bookmarks/lib/bookmarks.php

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<?php
/**
* ownCloud - bookmarks plugin
*
* @author Arthur Schiwon
* @copyright 2011 Arthur Schiwon blizzz@arthur-schiwon.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* This class manages bookmarks
*/
class OC_Bookmarks_Bookmarks{
/**
* @brief Finds all bookmarks, matching the filter
* @param offset result offset
* @param sqlSortColumn sort result with this column
* @param filter can be: empty -> no filter, a string -> filter this, a string array -> filter for all strings
* @param filterTagOnly if true, filter affacts only tags, else filter affects url, title and tags
* @return void
*/
public static function findBookmarks($offset, $sqlSortColumn, $filter, $filterTagOnly){
//OCP\Util::writeLog('bookmarks', 'findBookmarks ' .$offset. ' '.$sqlSortColumn.' '. $filter.' '. $filterTagOnly ,OCP\Util::DEBUG);
$CONFIG_DBTYPE = OC_Config::getValue( 'dbtype', 'sqlite' );
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$params=array(OCP\USER::getUser());
if( $CONFIG_DBTYPE == 'sqlite' or $CONFIG_DBTYPE == 'sqlite3' ){
$_gc_separator = ', \' \'';
} else {
$_gc_separator = 'SEPARATOR \' \'';
}
if($filter){
if($CONFIG_DBTYPE == 'pgsql' )
$tagString = 'array_to_string(array_agg(tag), \' \')';
else
$tagString = 'tags';
$sqlFilterTag = 'HAVING ';
if(is_array($filter)){
$first = true;
$filterstring = '';
foreach ($filter as $singleFilter){
$filterstring = $filterstring . ($first?'':' AND ') . $tagString.' LIKE ? ';
$params[] = '%'.$singleFilter.'%';
$first=false;
}
$sqlFilterTag = $sqlFilterTag . $filterstring;
} else{
$sqlFilterTag = $sqlFilterTag .$tagString.' LIKE ? ';
$params[] = '%'.$filter.'%';
}
} else {
$sqlFilterTag = '';
}
if($CONFIG_DBTYPE == 'pgsql' ){
$query = OC_DB::prepare('
SELECT id, url, title, '.($filterTagOnly?'':'url || title ||').' array_to_string(array_agg(tag), \' \') as tags
FROM *PREFIX*bookmarks
LEFT JOIN *PREFIX*bookmarks_tags ON *PREFIX*bookmarks.id = *PREFIX*bookmarks_tags.bookmark_id
WHERE
*PREFIX*bookmarks.user_id = ?
GROUP BY id, url, title
'.$sqlFilterTag.'
ORDER BY *PREFIX*bookmarks.'.$sqlSortColumn.' DESC
LIMIT 10
OFFSET '. $offset);
} else {
if( $CONFIG_DBTYPE == 'sqlite' or $CONFIG_DBTYPE == 'sqlite3' )
$concatFunction = '(url || title || ';
else
$concatFunction = 'Concat(Concat( url, title), ';
$query = OC_DB::prepare('
SELECT id, url, title, '
.($filterTagOnly?'':$concatFunction).
'CASE WHEN *PREFIX*bookmarks.id = *PREFIX*bookmarks_tags.bookmark_id
THEN GROUP_CONCAT( tag ' .$_gc_separator. ' )
ELSE \' \'
END '
.($filterTagOnly?'':')').'
AS tags
FROM *PREFIX*bookmarks
LEFT JOIN *PREFIX*bookmarks_tags ON 1=1
WHERE (*PREFIX*bookmarks.id = *PREFIX*bookmarks_tags.bookmark_id
OR *PREFIX*bookmarks.id NOT IN (
SELECT *PREFIX*bookmarks_tags.bookmark_id FROM *PREFIX*bookmarks_tags
)
)
AND *PREFIX*bookmarks.user_id = ?
GROUP BY url
'.$sqlFilterTag.'
ORDER BY *PREFIX*bookmarks.'.$sqlSortColumn.' DESC
LIMIT '.$offset.', 10');
}
$bookmarks = $query->execute($params)->fetchAll();
return $bookmarks;
}
}
?>