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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
*
*/
namespace OCA\News;
/**
* This class maps a feed to an entry in the feeds table of the database.
*/
class FolderMapper {
const tableName = '*PREFIX*news_folders';
private $userid;
public function __construct($userid = null){
if ($userid !== null) {
$this->userid = $userid;
}
$this->userid = \OCP\USER::getUser();
}
/**
* @brief Returns the forest (list of trees) of folders children of $parentid
* @param
* @returns
*/
public function childrenOf($parentid) {
$folderlist = array();
$stmt = \OCP\DB::prepare('SELECT * FROM ' . self::tableName .
' WHERE user_id = ? AND parent_id = ?');
$result = $stmt->execute(array($this->userid, $parentid));
while( $row = $result->fetchRow()){
$folderid = $row['id'];
$folder = new Folder($row['name'], $folderid);
$children = self::childrenOf($folderid);
$folder->addChildren($children);
$folderlist[] = $folder;
}
return $folderlist;
}
/**
* @brief Returns the forest (list of trees) of folders children of $parentid,
* including the feeds that they contain
* @param
* @returns
*/
public function childrenOfWithFeeds($parentid) {
$feedmapper = new FeedMapper();
$collectionlist = $feedmapper->findByFolderId($parentid);
$stmt = \OCP\DB::prepare('SELECT * FROM ' . self::tableName .
' WHERE user_id = ? AND parent_id = ?');
$result = $stmt->execute(array($this->userid, $parentid));
while( $row = $result->fetchRow()){
$folderid = $row['id'];
$folder = new Folder($row['name'], $folderid);
$children = self::childrenOfWithFeeds($folderid);
$folder->addChildren($children);
$collectionlist[] = $folder;
}
return $collectionlist;
}
/**
* @brief Retrieve a folder from the database
* @param id The id of the folder in the database table.
* @returns an instance of OC_News_Folder
*/
public function find($id){
$stmt = \OCP\DB::prepare('SELECT *
FROM ' . self::tableName .
' WHERE user_id = ? AND id = ?');
$result = $stmt->execute(array($this->userid, $id));
$row = $result->fetchRow();
$folder = new Folder($row['name'], $row['id']);
return $folder;
}
/**
* @brief Store the folder and all its feeds into the database
* @param folder the folder to be saved
* @returns The id of the folder in the database table.
*/
public function save(Folder $folder){
$query = \OCP\DB::prepare('
INSERT INTO ' . self::tableName .
'(name, parent_id, user_id)
VALUES (?, ?, ?)
');
$name = $folder->getName();
if(empty($name)) {
$l = \OC_L10N::get('news');
$name = $l->t('no name');
}
$parentid = $folder->getParentId();
$params=array(
$name,
$parentid,
$this->userid
);
$query->execute($params);
$folderid = \OCP\DB::insertid(self::tableName);
$folder->setId($folderid);
return $folderid;
}
/**
* @brief Updates the folder
* @param folder the folder to be updated
*/
public function update(Folder $folder){
$query = \OCP\DB::prepare('UPDATE ' . self::tableName
. ' SET name = ? ' . ' WHERE id = ?');
$params = array($folder->getName(), $folder->getId());
$query->execute($params);
return true;
}
/**
* @brief Delete the folder and all its feeds from the database
* @param folder the folder to be deleted (an instance of OCA\News\Folder)
* @returns true if the folder has been deleted, false if an error occurred
*/
public function delete(Folder $folder){
$folderid = $folder->getId();
return deleteById(folderid);
}
/**
* @brief Delete the folder and all its feeds from the database
* @param folder the folder to be deleted (an instance of OCA\News\Folder)
* @returns true if the folder has been deleted, false if an error occurred
*/
public function deleteById($folderid){
if ($folderid == null){
return false;
}
// delete child folders
$stmt = \OCP\DB::prepare('SELECT id FROM ' . self::tableName .' WHERE parent_id = ? AND user_id = ?');
$result = $stmt->execute(array($folderid, $this->userid));
while ($row = $result->fetchRow()) {
if (!self::deleteById($row['id']))
return false;
}
$stmt = \OCP\DB::prepare('DELETE FROM ' . self::tableName .' WHERE id = ? AND user_id = ?');
$result = $stmt->execute(array($folderid, $this->userid));
$feedMapper = new FeedMapper($this->userid);
//TODO: handle the value that the execute returns
if(!$feedMapper->deleteAll($folderid))
return false;
return true;
}
}
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