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<?php
/**
* ownCloud - News
*
* @author Alessandro Cosentino
* @author Bernhard Posselt
* @copyright 2012 Alessandro Cosentino cosenal@gmail.com
* @copyright 2012 Bernhard Posselt dev@bernhard-posselt.com
*
* 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/>.
*
*/
namespace OCA\News\BusinessLayer;
use \OCA\AppFramework\Db\DoesNotExistException;
use \OCA\AppFramework\Db\MultipleObjectsReturnedException;
use \OCA\News\Db\IMapper;
abstract class BusinessLayer {
protected $mapper;
public function __construct(IMapper $mapper){
$this->mapper = $mapper;
}
/**
* Delete an entity
* @param int $id the id of the entity
* @param string $userId the name of the user for security reasons
* @throws DoesNotExistException if the entity does not exist
* @throws MultipleObjectsReturnedException if more than one entity exists
*/
public function delete($id, $userId){
$entity = $this->find($id, $userId);
$this->mapper->delete($entity);
}
/**
* Finds an entity by id
* @param int $id the id of the entity
* @param string $userId the name of the user for security reasons
* @throws DoesNotExistException if the entity does not exist
* @throws MultipleObjectsReturnedException if more than one entity exists
* @return Entity the entity
*/
public function find($id, $userId){
try {
return $this->mapper->find($id, $userId);
} catch(DoesNotExistException $ex){
throw new BusinessLayerException($ex->getMessage());
} catch(MultipleObjectsReturnedException $ex){
throw new BusinessLayerException($ex->getMessage());
}
}
}
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