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<?php
/**
* ownCloud - News
*
* @author Alessandro Copyright
* @author Bernhard Posselt
* @copyright 2012 Alessandro Cosentino cosenal@gmail.com
* @copyright 2012 Bernhard Posselt nukeawhale@gmail.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\Business;
use \OCA\AppFramework\Db\DoesNotExistException;
use \OCA\AppFramework\Db\MultipleObjectsReturnedException;
// use \OCA\News\Db\Entity;
abstract class BusinessLayer {
protected $mapper;
public function __construct($mapper){
$this->mapper = $mapper;
}
public function create($entity){
$this->validate($entity);
$this->mapper->create($entity);
}
public function update($entity){
try {
$this->validate($entity);
$this->mapper->update($entity);
} catch(DoesNotExistException $ex){
$this->throwDoesNotExistException($ex);
}
}
public function delete($id){
try {
$this->mapper->delete($id);
} catch(DoesNotExistException $ex){
$this->throwDoesNotExistException($ex);
}
}
public function getAll(){
return $this->mapper->getAllByUserId($this->api->getUserId());
}
public function getById($id){
try {
$entity = $this->mapper->getByIdAndUserId($id, $this->api->getUserId());
if($feed->getUserId() !== $this->api->getUserId()){
throw new PermissionException('Not allowed to change the ' +
'feeds of a user other than the current one');
} else {
return $entity;
}
} catch(DoesNotExistException $ex){
$this->throwDoesNotExistException($ex);
} catch(MultipleObjectsReturnedException $ex){
$this->throwMultipleObjectsReturnedException($ex);
}
}
protected abstract function validate($entity);
protected abstract function throwDoesNotExistException(DoesNotExistException $ex);
protected abstract function throwMultipleObjectsReturnedException(MultipleObjectsReturnedException $ex);
protected abstract function throwObjectExistsException(ObjectExistsException $ex);
}
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