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<?php
/**
* ownCloud - News
*
* This file is licensed under the Affero General Public License version 3 or
* later. See the COPYING file.
*
* @author Alessandro Cosentino <cosenal@gmail.com>
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @copyright Alessandro Cosentino 2012
* @copyright Bernhard Posselt 2012, 2014
*/
namespace OCA\News\Db;
use OCP\IDBConnection;
use OCP\AppFramework\Db\Entity;
class FeedMapper extends NewsMapper {
public function __construct(IDBConnection $db) {
parent::__construct($db, 'news_feeds', Feed::class);
}
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`';
$params = [$id, $userId];
return $this->findEntity($sql, $params);
}
public function findAllFromUser($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`';
$params = [$userId];
return $this->findEntities($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`';
return $this->findEntities($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`';
$params = [$hash, $userId];
return $this->findEntity($sql, $params);
}
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` = ?';
$params = [$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 ';
$params = [];
// sometimes we want to delete all entries
if ($deleteOlderThan !== null) {
$sql .= 'AND `deleted_at` < ? ';
$params[] = $deleteOlderThan;
}
// we need to sometimes only delete feeds of a user
if($userId !== null) {
$sql .= 'AND `user_id` = ?';
$params[] = $userId;
}
return $this->findEntities($sql, $params);
}
/**
* Deletes all feeds of a user, delete items first since the user_id
* is not defined in there
* @param string $userId the name of the user
*/
public function deleteUser($userId) {
$sql = 'DELETE FROM `*PREFIX*news_feeds` WHERE `user_id` = ?';
$this->execute($sql, [$userId]);
}
}
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