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|
<?php
/**
* ownCloud - News
*
* @author Alessandro Cosentino
* @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\Bl;
use \OCA\AppFramework\Db\DoesNotExistException;
use \OCA\AppFramework\Core\API;
use \OCA\News\Db\Feed;
use \OCA\News\Db\FeedMapper;
use \OCA\News\Db\ItemMapper;
use \OCA\News\Utility\FeedFetcher;
use \OCA\News\Utility\FetcherException;
class FeedBl extends Bl {
private $feedFetcher;
private $itemMapper;
private $api;
public function __construct(FeedMapper $feedMapper,
FeedFetcher $feedFetcher,
ItemMapper $itemMapper,
API $api){
parent::__construct($feedMapper);
$this->feedFetcher = $feedFetcher;
$this->itemMapper = $itemMapper;
$this->api = $api;
}
public function findAllFromUser($userId){
return $this->mapper->findAllFromUser($userId);
}
public function create($feedUrl, $folderId, $userId){
// first try if the feed exists already
try {
$this->mapper->findByUrlHash(md5($feedUrl), $userId);
throw new BLException('Can not add feed: Exists already');
} catch(DoesNotExistException $ex){}
try {
list($feed, $items) = $this->feedFetcher->fetch($feedUrl);
// insert feed
$feed->setFolderId($folderId);
$feed->setUserId($userId);
$feed = $this->mapper->insert($feed);
// insert items
foreach($items as $item){
$item->setFeedId($feed->getId());
$this->itemMapper->insert($item);
}
return $feed;
} catch(FetcherException $ex){
throw new BLException('Can not add feed: Not found or bad source');
}
}
// FIXME: this method is not covered by any tests
public function updateAll(){
$feeds = $this->mapper->findAll();
foreach($feeds as $feed){
try {
$this->update($feed->getId(), $feed->getUserId());
} catch(BLException $ex){
continue;
}
}
}
public function update($feedId, $userId){
$feed = $this->mapper->find($feedId, $userId);
try {
list($feed, $items) = $this->feedFetcher->fetch($feed->getUrl());
// update items
foreach($items as $item){
// if a database exception is being thrown the unique constraint
// on the item guid hash is being violated and we need to update
// the item
try {
$item->setFeedId($feed->getId());
$this->itemMapper->insert($item);
} catch(\DatabaseException $ex){
$existing = $this->itemMapper->findByGuidHash(
$item->getGuidHash(), $feedId, $userId);
$item->setId($existing->getId());
$this->itemMapper->update($item);
}
}
} catch(FetcherException $ex){
// failed updating is not really a problem, so only log it
$this->api->log('Can not update feed: Not found or bad source');
}
}
public function move($feedId, $folderId, $userId){
$feed = $this->find($feedId, $userId);
$feed->setFolderId($folderId);
$this->mapper->update($feed);
}
// TODO: delete associated items
}
|
