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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\Db;
use \OCA\AppFramework\Core\API;
use \OCA\AppFramework\Db\Mapper;
use \OCA\AppFramework\Db\Entity;
class FeedMapper extends Mapper implements IMapper {
public function __construct(API $api) {
parent::__construct($api, 'news_feeds');
}
public function find($id, $userId){
$sql = 'SELECT `feeds`.*, COUNT(`items`.`id`) AS `unread_count` ' .
'FROM `*PREFIX*news_feeds` `feeds` ' .
'LEFT JOIN `*PREFIX*news_items` `items` ' .
'ON `feeds`.`id` = `items`.`feed_id` ' .
// WARNING: this is a desperate attempt at making this query work
// because prepared statements dont work. This is a possible
// SQL INJECTION RISK WHEN MODIFIED WITHOUT THOUGHT.
// think twice when changing this
'AND (`items`.`status` & ' . StatusFlag::UNREAD . ') = ' .
StatusFlag::UNREAD . ' ' .
'WHERE `feeds`.`id` = ? ' .
'AND `feeds`.`user_id` = ? ' .
'GROUP BY `feeds`.`id`, `feeds`.`user_id`, `feeds`.`url_hash`,'.
'`feeds`.`url`, `feeds`.`title`, `feeds`.`link`,'.
'`feeds`.`favicon_link`, `feeds`.`added`, `feeds`.`articles_per_update`,'.
'`feeds`.`folder_id`, `feeds`.`prevent_update`, `feeds`.`deleted_at`';
$params = array($id, $userId);
$row = $this->findOneQuery($sql, $params);
$feed = new Feed();
$feed->fromRow($row);
return $feed;
}
private function findAllRows($sql, $params=array(), $limit=null){
$result = $this->execute($sql, $params, $limit);
$feeds = array();
while($row = $result->fetchRow()){
$feed = new Feed();
$feed->fromRow($row);
array_push($feeds, $feed);
}
return $feeds;
}
public function findAllFromUser($userId){
$sql = 'SELECT `feeds`.*, COUNT(`items`.`id`) AS `unread_count` ' .
'FROM `*PREFIX*news_feeds` `feeds` ' .
'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` '.
'ON `feeds`.`folder_id` = `folders`.`id` ' .
'LEFT JOIN `*PREFIX*news_items` `items` ' .
'ON `feeds`.`id` = `items`.`feed_id` ' .
// WARNING: this is a desperate attempt at making this query work
// because prepared statements dont work. This is a possible
// SQL INJECTION RISK WHEN MODIFIED WITHOUT THOUGHT.
// think twice when changing this
'AND (`items`.`status` & ' . StatusFlag::UNREAD . ') = ' .
StatusFlag::UNREAD . ' ' .
'WHERE `feeds`.`user_id` = ? ' .
'AND (`feeds`.`folder_id` = 0 ' .
'OR `folders`.`deleted_at` = 0' .
')' .
'AND `feeds`.`deleted_at` = 0 ' .
'GROUP BY `feeds`.`id`, `feeds`.`user_id`, `feeds`.`url_hash`,'.
'`feeds`.`url`, `feeds`.`title`, `feeds`.`link`,'.
'`feeds`.`favicon_link`, `feeds`.`added`, `feeds`.`articles_per_update`,'.
'`feeds`.`folder_id`, `feeds`.`prevent_update`, `feeds`.`deleted_at`';
$params = array($userId);
return $this->findAllRows($sql, $params);
}
public function findAll(){
$sql = 'SELECT `feeds`.*, COUNT(`items`.`id`) AS `unread_count` ' .
'FROM `*PREFIX*news_feeds` `feeds` ' .
'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` '.
'ON `feeds`.`folder_id` = `folders`.`id` ' .
'LEFT JOIN `*PREFIX*news_items` `items` ' .
'ON `feeds`.`id` = `items`.`feed_id` ' .
// WARNING: this is a desperate attempt at making this query work
// because prepared statements dont work. This is a possible
// SQL INJECTION RISK WHEN MODIFIED WITHOUT THOUGHT.
// think twice when changing this
'AND (`items`.`status` & ' . StatusFlag::UNREAD . ') = ' .
StatusFlag::UNREAD . ' ' .
'WHERE (`feeds`.`folder_id` = 0 ' .
'OR `folders`.`deleted_at` = 0' .
')' .
'AND `feeds`.`deleted_at` = 0 ' .
'GROUP BY `feeds`.`id`, `feeds`.`user_id`, `feeds`.`url_hash`,'.
'`feeds`.`url`, `feeds`.`title`, `feeds`.`link`,'.
'`feeds`.`favicon_link`, `feeds`.`added`, `feeds`.`articles_per_update`,'.
'`feeds`.`folder_id`, `feeds`.`prevent_update`, `feeds`.`deleted_at`';
return $this->findAllRows($sql);
}
public function findByUrlHash($hash, $userId){
$sql = 'SELECT `feeds`.*, COUNT(`items`.`id`) AS `unread_count` ' .
'FROM `*PREFIX*news_feeds` `feeds` ' .
'LEFT JOIN `*PREFIX*news_items` `items` ' .
'ON `feeds`.`id` = `items`.`feed_id` ' .
// WARNING: this is a desperate attempt at making this query work
// because prepared statements dont work. This is a possible
// SQL INJECTION RISK WHEN MODIFIED WITHOUT THOUGHT.
// think twice when changing this
'AND (`items`.`status` & ' . StatusFlag::UNREAD . ') = ' .
StatusFlag::UNREAD . ' ' .
'WHERE `feeds`.`url_hash` = ? ' .
'AND `feeds`.`user_id` = ? ' .
'GROUP BY `feeds`.`id`, `feeds`.`user_id`, `feeds`.`url_hash`,'.
'`feeds`.`url`, `feeds`.`title`, `feeds`.`link`,'.
'`feeds`.`favicon_link`, `feeds`.`added`, `feeds`.`articles_per_update`,'.
'`feeds`.`folder_id`, `feeds`.`prevent_update`, `feeds`.`deleted_at`';
$params = array($hash, $userId);
$row = $this->findOneQuery($sql, $params);
$feed = new Feed();
$feed->fromRow($row);
return $feed;
}
public function delete(Entity $entity){
parent::delete($entity);
// someone please slap me for doing this manually :P
// we needz CASCADE + FKs please
$sql = 'DELETE FROM `*PREFIX*news_items` WHERE `feed_id` = ?';
$params = array($entity->getId());
$this->execute($sql, $params);
}
/**
* @param int $deleteOlderThan if given gets all entries with a delete date
* older than that timestamp
* @param string $userId if given returns only entries from the given user
* @return array with the database rows
*/
public function getToDelete($deleteOlderThan=null, $userId=null) {
$sql = 'SELECT * FROM `*PREFIX*news_feeds` ' .
'WHERE `deleted_at` > 0 ';
$params = array();
// sometimes we want to delete all entries
if ($deleteOlderThan !== null) {
$sql .= 'AND `deleted_at` < ? ';
array_push($params, $deleteOlderThan);
}
// we need to sometimes only delete feeds of a user
if($userId !== null) {
$sql .= 'AND `user_id` = ?';
array_push($params, $userId);
}
return $this->findAllRows($sql, $params);
}
}
|
