/home/edulekha/studygroup.edulekha.com/ow_plugins/forum/bol/topic_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 `forum_topic` table.
*
* @author Egor Bulgakov <egor.bulgakov@gmail.com>
* @package ow.ow_plugins.forum.bol
* @since 1.0
*/
class FORUM_BOL_TopicDao extends OW_BaseDao
{
const GROUP_ID = 'groupId';
const STATUS = 'status';
/**
* Class constructor
*
*/
protected function __construct()
{
parent::__construct();
}
/**
* Class instance
*
* @var FORUM_BOL_TopicDao
*/
private static $classInstance;
/**
* Returns class instance
*
* @return FORUM_BOL_TopicDao
*/
public static function getInstance()
{
if ( self::$classInstance === null )
{
self::$classInstance = new self();
}
return self::$classInstance;
}
/**
* @see OW_BaseDao::getDtoClassName()
*
*/
public function getDtoClassName()
{
return 'FORUM_BOL_Topic';
}
/**
* @see OW_BaseDao::getTableName()
*
*/
public function getTableName()
{
return OW_DB_PREFIX . 'forum_topic';
}
/**
* Find latest topics ids
*
* @param integer $first
* @param integer $count
* @return array
*/
public function findLatestPublicTopicsIds($first, $count)
{
$query = "SELECT
a.`id`
FROM
`" . $this->getTableName() . "` a
INNER JOIN
`" . FORUM_BOL_GroupDao::getInstance()->getTableName() . "` b
ON
a.`groupId` = b.`id`
AND
b.`isPrivate` = :private
WHERE
a.`status` = :status
ORDER BY
a.`id` DESC
LIMIT :f, :c";
return $this->dbo->queryForColumnList($query, array(
'private' => 0,
'status' => 'approved',
'f' => (int) $first,
'c' => (int) $count,
));
}
/**
* Returns forum group's topic count
*
* @param int
* @return int $groupId
*/
public function findGroupTopicCount( $groupId )
{
if ( empty($groupId) )
{
return 0;
}
$example = new OW_Example();
$example->andFieldEqual(self::GROUP_ID, (int)$groupId);
$example->andFieldEqual(self::STATUS, FORUM_BOL_ForumService::STATUS_APPROVED);
return $this->countByExample($example);
}
/**
* Returns forum group's post count
*
* @param int $groupId
* @return int
*/
public function findGroupPostCount( $groupId )
{
if ( empty($groupId) )
{
return 0;
}
$query = 'SELECT COUNT(`p`.`id`)
FROM `' . $this->getTableName() . '` AS `t`
INNER JOIN `' . FORUM_BOL_PostDao::getInstance()->getTableName() . '` AS `p`
ON ( `t`.`id` = `p`.`topicId` )
WHERE `t`.`' . self::GROUP_ID . '` = :groupId AND `t`.`' . self::STATUS . '` = :status';
return (int)$this->dbo->queryForColumn($query, array('groupId' => $groupId, 'status' => FORUM_BOL_ForumService::STATUS_APPROVED));
}
/**
* Returns simple forum group's topic list
*
* @param int $groupId
* @param int $first
* @param int $count
* @param integer $lastTopicId
* @return array of FORUM_BOL_Topic
*/
public function findSimpleGroupTopicList( $groupId, $first, $count, $lastTopicId = null )
{
$example = new OW_Example();
$example->andFieldEqual('groupId', $groupId);
if ( $lastTopicId )
{
$example->andFieldGreaterThan('id', $lastTopicId);
}
$example->setOrder('`id`');
$example->setLimitClause($first, $count);
return $this->findListByExample($example);
}
/**
* Returns forum group's topic list
*
* @param int $groupId
* @param int $first
* @param int $count
* @param int $lastTopicId
* @param array $excludeTopicIds
* @return array
*/
public function findGroupTopicList( $groupId, $first, $count, array $excludeTopicIds = array() )
{
$topicExcludeFilter = null;
if ( $excludeTopicIds )
{
$topicExcludeFilter = ' AND `t`.`id` NOT IN (' . $this->dbo->mergeInClause($excludeTopicIds) . ')';
}
$query = 'SELECT `t`.*
FROM `' . $this->getTableName() . '` AS `t`
INNER JOIN `' . FORUM_BOL_PostDao::getInstance()->getTableName() . '` AS `p`
ON (`t`.`lastPostId` = `p`.`id`)
WHERE `t`.`groupId` = ? AND `t`.`status` = ? ' . $topicExcludeFilter . '
GROUP BY `p`.`topicId`
ORDER BY `t`.`sticky` DESC, `p`.`createStamp` DESC
LIMIT ?, ?';
$list = $this->dbo->queryForList($query, array($groupId, FORUM_BOL_ForumService::STATUS_APPROVED, (int)$first, (int)$count));
if ( $list )
{
$topicIdList = array();
foreach ( $list as $topic )
{
$topicIdList[] = $topic['id'];
}
$counters = $this->getPostCountForTopicIdList($topicIdList);
foreach ( $list as &$topic )
{
$topic['postCount'] = $counters[$topic['id']];
}
}
return $list;
}
public function findLastTopicList( $limit, $excludeGroupIdList = null )
{
$postDao = FORUM_BOL_PostDao::getInstance();
$groupDao = FORUM_BOL_GroupDao::getInstance();
$sectionDao = FORUM_BOL_SectionDao::getInstance();
$excludeCond = $excludeGroupIdList ? ' AND `g`.`id` NOT IN ('.implode(',', $excludeGroupIdList).') = 1' : '';
$query = 'SELECT `t`.*
FROM `' . $this->getTableName() . '` AS `t`
INNER JOIN `' . $groupDao->getTableName() . '` AS `g` ON (`t`.`groupId` = `g`.`id`)
INNER JOIN `' . $sectionDao->getTableName() . '` AS `s` ON (`s`.`id` = `g`.`sectionId`)
INNER JOIN `' . $postDao->getTableName() . '` AS `p` ON (`t`.`lastPostId` = `p`.`id`)
WHERE `s`.`isHidden` = 0 AND `t`.`status` = :status ' . $excludeCond . '
ORDER BY `p`.`createStamp` DESC
LIMIT :limit';
$list = $this->dbo->queryForList($query, array('status' => FORUM_BOL_ForumService::STATUS_APPROVED, 'limit' => (int)$limit));
if ( $list )
{
$topicIdList = array();
foreach ( $list as $topic )
{
$topicIdList[] = $topic['id'];
}
$counters = $this->getPostCountForTopicIdList($topicIdList);
foreach ( $list as &$topic )
{
$topic['postCount'] = $counters[$topic['id']];
}
}
return $list;
}
public function getPostCountForTopicIdList( $topicIdList )
{
$postDao = FORUM_BOL_PostDao::getInstance();
$query = "SELECT `p`.`topicId`, COUNT(`p`.`id`) AS `postCount`
FROM `".$postDao->getTableName()."` AS `p`
WHERE `p`.`topicId` IN (".$this->dbo->mergeInClause($topicIdList).")
GROUP BY `p`.`topicId`";
$countList = $this->dbo->queryForList($query);
$counters = array();
foreach ( $countList as $count )
{
$counters[$count['topicId']] = $count['postCount'];
}
return $counters;
}
public function findUserTopicList( $userId )
{
$query = "
SELECT * FROM `" . $this->getTableName() . "` WHERE `userId` = ?
";
return $this->dbo->queryForList($query, array($userId));
}
/**
* Returns forum topic info
*
* @param int $topicId
* @return array
*/
public function findTopicInfo( $topicId )
{
$query = "
SELECT `t`.*, `g`.`id` AS `groupId`, `g`.`name` AS `groupName`, `s`.`name` AS `sectionName`, `s`.`id` AS `sectionId`
FROM `" . $this->getTableName() . "` AS `t`
LEFT JOIN `" . FORUM_BOL_GroupDao::getInstance()->getTableName() . "` AS `g`
ON (`t`.`groupId` = `g`.`id`)
LEFT JOIN `" . FORUM_BOL_SectionDao::getInstance()->getTableName() . "` AS `s`
ON (`g`.`sectionId` = `s`.`id`)
WHERE `t`.`id` = ?
";
return $this->dbo->queryForRow($query, array($topicId));
}
/**
* Returns topic list by ids
*
* @param array $topicIds
* @return array
*/
public function findListByTopicIds( array $topicIds )
{
if ( !$topicIds )
{
return array();
}
$topicsIn = $this->dbo->mergeInClause($topicIds);
$query = "
SELECT `t`.*, `g`.`id` AS `groupId`, `g`.`name` AS `groupName`, `s`.`name` AS `sectionName`, `s`.`id` AS `sectionId`
FROM `" . $this->getTableName() . "` AS `t`
INNER JOIN `" . FORUM_BOL_GroupDao::getInstance()->getTableName() . "` AS `g`
ON (`t`.`groupId` = `g`.`id`)
INNER JOIN `" . FORUM_BOL_SectionDao::getInstance()->getTableName() . "` AS `s`
ON (`g`.`sectionId` = `s`.`id`)
WHERE t.id IN (" . $topicsIn .") ORDER BY FIELD(t.id, " . $topicsIn . ")";
$list = $this->dbo->queryForList($query);
if ( $list )
{
$topicIdList = array();
foreach ( $list as $topic )
{
$topicIdList[] = $topic['id'];
}
$counters = $this->getPostCountForTopicIdList($topicIdList);
foreach ( $list as &$topic )
{
$topic['postCount'] = !empty($counters[$topic['id']]) ? $counters[$topic['id']] : 0;
}
}
return $list;
}
/**
* Returns topic id list
*
* @param array $groupIds
* @return array
*/
public function findIdListByGroupIds( $groupIds )
{
$example = new OW_Example();
$example->andFieldInArray('groupId', $groupIds);
$query = "
SELECT `id` FROM `" . $this->getTableName() . "`
" . $example;
return $this->dbo->queryForColumnList($query);
}
public function getTopicIdListForDelete( $limit )
{
$example = new OW_Example();
$example->setOrder('`id` ASC');
$example->setLimitClause(0, $limit);
return $this->findIdListByExample($example);
}
public function findTemporaryTopicList( $limit )
{
$postDao = FORUM_BOL_PostDao::getInstance();
$query = "SELECT `t`.* FROM `".$this->getTableName()."` AS `t`
LEFT JOIN `".$postDao->getTableName()."` AS `p` ON (`t`.`lastPostId`=`p`.`id`)
WHERE `t`.`temp` = 1 AND `p`.`createStamp` < :ts";
return $this->dbo->queryForList($query, array('ts' => time() - 3600 * 24 * 5));
}
}