/home/edulekha/studygroup.edulekha.com/ow_plugins/newsfeed/bol/follow_dao.php
<?php
/**
* This software is intended for use with Oxwall Free Community Software http://www.oxwall.org/ and is
* licensed under The BSD license.
* ---
* Copyright (c) 2011, Oxwall Foundation
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and
* the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Oxwall Foundation nor the names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Data access Object for `newsfeed_follow` table.
*
* @author Sergey Kambalin <greyexpert@gmail.com>
* @package ow_plugins.newsfeed.bol
* @since 1.0
*/
class NEWSFEED_BOL_FollowDao extends OW_BaseDao
{
/**
* Singleton instance.
*
* @var NEWSFEED_BOL_FollowDao
*/
private static $classInstance;
/**
* Returns an instance of class (singleton pattern implementation).
*
* @return NEWSFEED_BOL_FollowDao
*/
public static function getInstance()
{
if ( self::$classInstance === null )
{
self::$classInstance = new self();
}
return self::$classInstance;
}
/**
* @see OW_BaseDao::getDtoClassName()
*
*/
public function getDtoClassName()
{
return 'NEWSFEED_BOL_Follow';
}
/**
* @see OW_BaseDao::getTableName()
*
*/
public function getTableName()
{
return OW_DB_PREFIX . 'newsfeed_follow';
}
public function addFollow( $userId, $feedType, $feedId, $permission = NEWSFEED_BOL_Service::PRIVACY_EVERYBODY )
{
$dto = $this->findFollow($userId, $feedType, $feedId, $permission);
if ( $dto === null )
{
$dto = new NEWSFEED_BOL_Follow();
$dto->feedType = $feedType;
$dto->feedId = $feedId;
$dto->userId = $userId;
$dto->followTime = time();
}
$dto->permission = $permission;
$this->save($dto);
return $dto;
}
public function findFollow( $userId, $feedType, $feedId, $permission = NEWSFEED_BOL_Service::PRIVACY_EVERYBODY )
{
$example = new OW_Example();
$example->andFieldEqual('userId', $userId);
$example->andFieldEqual('feedId', $feedId);
$example->andFieldEqual('feedType', $feedType);
if ( !empty($permission) )
{
$example->andFieldEqual('permission', $permission);
}
return $this->findObjectByExample($example);
}
public function findFollowByFeedList( $userId, $feedList , $permission = NEWSFEED_BOL_Service::PRIVACY_EVERYBODY )
{
if ( empty($feedList) )
{
return array();
}
$where = array();
foreach ( $feedList as $feed )
{
$perm = empty($feed["permission"]) ? $permission : $feed["permission"];
$permWhere = empty($perm) ? "1" : 'permission="' . $this->dbo->escapeString($perm) . '"';
$where[] = '(`feedType`="' . $this->dbo->escapeString($feed["feedType"])
. '" AND `feedId`="' . $this->dbo->escapeString($feed["feedId"])
. '" AND ' . $permWhere . ' )';
}
$query = "SELECT * FROM " . $this->getTableName() . " WHERE `userId`=:u AND ( " . implode(" OR ", $where) . " )";
return $this->dbo->queryForObjectList($query, $this->getDtoClassName(), array(
"u" => $userId
));
}
public function findList( $feedType, $feedId, $permission = null )
{
$example = new OW_Example();
$example->andFieldEqual('feedId', $feedId);
$example->andFieldEqual('feedType', $feedType);
if ( !empty($permission) )
{
$example->andFieldEqual('permission', $permission);
}
return $this->findListByExample($example);
}
public function removeFollow( $userId, $feedType, $feedId, $permission = null )
{
$example = new OW_Example();
$example->andFieldEqual('userId', $userId);
$example->andFieldEqual('feedId', $feedId);
$example->andFieldEqual('feedType', $feedType);
if ( !empty($permission) )
{
$example->andFieldEqual('permission', $permission);
}
return $this->deleteByExample($example);
}
}