renamed bl to businesslayer, handle exception in update routine, fix #69

1 files changed, 143 insertions, 0 deletions

diff --git a/businesslayer/itembusinesslayer.php b/businesslayer/itembusinesslayer.php
new file mode 100644
index 000000000..fd01506a6
--- /dev/null
+++ b/businesslayer/itembusinesslayer.php
@@ -0,0 +1,143 @@
+<?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\BusinessLayer;
+
+use \OCA\News\Db\Item;
+use \OCA\News\Db\ItemMapper;
+use \OCA\News\Db\StatusFlag;
+use \OCA\News\Db\FeedType;
+
+
+class ItemBusinessLayer extends BusinessLayer {
+
+	private $statusFlag;
+	private $autoPurgeCount;
+
+	public function __construct(ItemMapper $itemMapper, StatusFlag $statusFlag,
+								$autoPurgeCount=0){
+		parent::__construct($itemMapper);
+		$this->statusFlag = $statusFlag;
+		$this->autoPurgeCount = $autoPurgeCount;
+	}
+
+
+	public function findAllNew($id, $type, $updatedSince, 
+		$showAll, $userId){
+		$status = $this->statusFlag->typeToStatus($type, $showAll);
+		
+		switch($type){
+			case FeedType::FEED:
+				$items = $this->mapper->findAllNewFeed($id, $updatedSince, 
+					                                   $status, $userId);
+				break;
+			case FeedType::FOLDER:
+				$items = $this->mapper->findAllNewFolder($id, $updatedSince, 
+					                                   $status, $userId);
+				break;
+			default:
+				$items = $this->mapper->findAllNew($updatedSince, $status, 
+					                               $userId);
+		}
+
+		return $items;
+	}
+
+
+	public function findAll($id, $type, $limit, $offset, 
+		$showAll, $userId){
+		$status = $this->statusFlag->typeToStatus($type, $showAll);
+
+		switch($type){
+			case FeedType::FEED:
+				$items = $this->mapper->findAllFeed($id, $limit, $offset, 
+					                                   $status, $userId);
+				break;
+			case FeedType::FOLDER:
+				$items = $this->mapper->findAllFolder($id, $limit, $offset, 
+					                                   $status, $userId);
+				break;
+			default:
+				$items = $this->mapper->findAll($limit, $offset, $status, 
+					                               $userId);
+		}
+
+		return $items;
+	}
+
+
+	public function starredCount($userId){
+		return $this->mapper->starredCount($userId);
+	}
+
+
+	public function star($feedId, $guidHash, $isStarred, $userId){
+		// FIXME: this can throw two possible exceptions
+		$item = $this->mapper->findByGuidHash($guidHash, $feedId, $userId);
+		if($isStarred){
+			$item->setStarred();
+		} else {
+			$item->setUnstarred();
+		}
+		$this->mapper->update($item);
+	}
+
+
+	public function read($itemId, $isRead, $userId){
+		$item = $this->find($itemId, $userId);
+		if($isRead){
+			$item->setRead();	
+		} else {
+			$item->setUnread();
+		}
+		$this->mapper->update($item);
+	}
+
+
+	public function readFeed($feedId, $highestItemId, $userId){
+		$this->mapper->readFeed($feedId, $highestItemId, $userId);
+	}
+
+
+	/**
+	 * This method deletes all unread feeds that are not starred and over the 
+	 * count of $this->autoPurgeCount starting by the oldest. This is to clean
+	 * up the database so that old entries dont spam your db. As criteria for
+	 * old, the id is taken
+	 */
+	public function autoPurgeOld(){
+		$readAndNotStarred = 
+			$this->mapper->getReadOlderThanThreshold($this->autoPurgeCount);
+		
+		// delete entries with a lower id than last item
+		if($this->autoPurgeCount > 0 
+			&& isset($readAndNotStarred[$this->autoPurgeCount-1])){
+			$this->mapper->deleteReadOlderThanId(
+				$readAndNotStarred[$this->autoPurgeCount-1]->getId());
+		}
+	}
+
+
+}