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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Bernhard Reiter <ockham@raz.or.at>
* @author Morris Jobke <hey@morrisjobke.de>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Tagging;
use \OCP\AppFramework\Db\Mapper,
\OCP\AppFramework\Db\DoesNotExistException,
\OCP\IDBConnection;
/**
* Mapper for Tag entity
*/
class TagMapper extends Mapper {
/**
* Constructor.
*
* @param IDBConnection $db Instance of the Db abstraction layer.
*/
public function __construct(IDBConnection $db) {
parent::__construct($db, 'vcategory', 'OC\Tagging\Tag');
}
/**
* Load tags from the database.
*
* @param array|string $owners The user(s) whose tags we are going to load.
* @param string $type The type of item for which we are loading tags.
* @return array An array of Tag objects.
*/
public function loadTags($owners, $type) {
if(!is_array($owners)) {
$owners = array($owners);
}
$sql = 'SELECT `id`, `uid`, `type`, `category` FROM `' . $this->getTableName() . '` '
. 'WHERE `uid` IN (' . str_repeat('?,', count($owners)-1) . '?) AND `type` = ? ORDER BY `category`';
return $this->findEntities($sql, array_merge($owners, array($type)));
}
/**
* Check if a given Tag object already exists in the database.
*
* @param Tag $tag The tag to look for in the database.
* @return bool
*/
public function tagExists($tag) {
$sql = 'SELECT `id`, `uid`, `type`, `category` FROM `' . $this->getTableName() . '` '
. 'WHERE `uid` = ? AND `type` = ? AND `category` = ?';
try {
$this->findEntity($sql, array($tag->getOwner(), $tag->getType(), $tag->getName()));
} catch (DoesNotExistException $e) {
return false;
}
return true;
}
}
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