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<?php
/**
* ownCloud - News app
*
* @author Alessandro Cosentino
* Copyright (c) 2012 - Alessandro Cosentino <cosenal@gmail.com>
*
* This file is licensed under the Affero General Public License version 3 or later.
* See the COPYING-README file
*
*/
/**
* This class maps a feed to an entry in the feeds table of the database.
*/
class OC_News_FeedMapper {
const tableName = '*PREFIX*news_feeds';
/**
* @brief Retrieve a feed from the database
* @param id The id of the feed in the database table.
* @returns
*/
public function findById($id){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE id = ?');
$result = $stmt->execute(array($id));
$row = $result->fetchRow();
$url = $row['url'];
$title = $row['title'];
$feed = new OC_News_Feed($url, $title, null, $id);
return $feed;
}
/**
* @brief Retrieve a feed from the database
* @param id The id of the feed in the database table.
* @returns
*/
public function findByFolderId($folderid){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE folder_id = ?');
$result = $stmt->execute(array($folderid));
$feeds = array();
while ($row = $result->fetchRow()) {
$url = $row['url'];
$title = $row['title'];
$id = $row['id'];
$feed = new OC_News_Feed($url, $title, null, $id);
$feeds[] = $feed;
}
return $feeds;
}
/**
* @brief Retrieve a feed and all its items from the database
* @param id The id of the feed in the database table.
* @returns
*/
public function findWithItems($id){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE id = ?');
$result = $stmt->execute(array($id));
$row = $result->fetchRow();
$url = $row['url'];
$title = $row['title'];
$feed = new OC_News_Feed($url, $title, null,$id);
$itemMapper = new OC_News_ItemMapper();
$items = $itemMapper->findAll($id);
$feed->setItems($items);
return $feed;
}
/**
* @brief Find the id of a feed and all its items from the database
* @param url url of the feed
* @return id of the feed corresponding to the url passed as parameters
* null - if there is no such feed
*/
public function findIdFromUrl($url){
$stmt = OCP\DB::prepare('SELECT * FROM ' . self::tableName . ' WHERE url = ?');
$result = $stmt->execute(array($url));
$row = $result->fetchRow();
$id = null;
if ($row != null){
$id = $row['id'];
}
return $id;
}
/**
* @brief Save the feed and all its items into the database
* @param feed the feed to be saved
* @returns The id of the feed in the database table.
*/
//TODO: handle error case
public function save(OC_News_Feed $feed, $folderid){
$CONFIG_DBTYPE = OCP\Config::getSystemValue( "dbtype", "sqlite" );
if( $CONFIG_DBTYPE == 'sqlite' or $CONFIG_DBTYPE == 'sqlite3' ){
$_ut = "strftime('%s','now')";
} elseif($CONFIG_DBTYPE == 'pgsql') {
$_ut = 'date_part(\'epoch\',now())::integer';
} else {
$_ut = "UNIX_TIMESTAMP()";
}
$title = $feed->getTitle();
$url = htmlspecialchars_decode($feed->getUrl());
if(empty($title)) {
$l = OC_L10N::get('news');
$title = $l->t('no title');
}
//FIXME: Detect when feed contains already a database id
$feedid = $this->findIdFromUrl($url);
if ($feedid == null){
$query = OCP\DB::prepare('
INSERT INTO ' . self::tableName .
'(url, title, folder_id, added, lastmodified)
VALUES (?, ?, ?, ?, ?)
');
$params=array(
$url,
htmlspecialchars_decode($title),
$folderid,
$_ut,
$_ut
);
$query->execute($params);
$feedid = OCP\DB::insertid(self::tableName);
}
$feed->setId($feedid);
$itemMapper = new OC_News_ItemMapper();
$items = $feed->getItems();
foreach($items as $item){
$itemMapper->save($item, $feedid);
}
return $feedid;
}
public function delete(OC_News_Feed $feed){
$id = $feed->getId();
$stmt = OCP\DB::prepare("
DELETE FROM " . self::tableName .
"WHERE id = $id
");
$result = $stmt->execute();
$itemMapper = new OC_News_ItemMapper();
//TODO: handle the value that the execute returns
$itemMapper->deleteAll($id);
return true;
}
public function deleteAll($folderdid){
$id = $feed->getId();
$stmt = OCP\DB::prepare("
DELETE FROM " . self::tableName .
"WHERE id = $id
");
$result = $stmt->execute();
$itemMapper = new OC_News_ItemMapper();
//TODO: handle the value that the execute returns
$itemMapper->deleteAll($id);
return true;
}
}
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