/home/edulekha/studygroup.edulekha.com/ow_plugins/questions/bol/option_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) 2012, Sergey Kambalin
* 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.
*/
/**
* @author Sergey Kambalin <greyexpert@gmail.com>
* @package questions.bol
*/
class QUESTIONS_BOL_OptionDao extends OW_BaseDao
{
/**
* Singleton instance.
*
* @var QUESTIONS_BOL_OptionDao
*/
private static $classInstance;
/**
* Returns an instance of class (singleton pattern implementation).
*
* @return QUESTIONS_BOL_OptionDao
*/
public static function getInstance()
{
if ( self::$classInstance === null )
{
self::$classInstance = new self();
}
return self::$classInstance;
}
/**
* @see OW_BaseDao::getDtoClassName()
*
*/
public function getDtoClassName()
{
return 'QUESTIONS_BOL_Option';
}
/**
* @see OW_BaseDao::getTableName()
*
*/
public function getTableName()
{
return OW_DB_PREFIX . 'questions_option';
}
public function findListWithAnswerCountList( $id, $startStamp, $priorUsers = array(), $limit = null )
{
$answerDao = QUESTIONS_BOL_AnswerDao::getInstance();
$limitSql = empty($limit) ? '' : 'LIMIT ' . $limit[0] . ', ' . $limit[1];
if ( empty($priorUsers) )
{
$query ='SELECT o.*, count(DISTINCT a.id) AS answerCount FROM ' . $this->getTableName() . ' o ' .
'LEFT JOIN ' . $answerDao->getTableName() . ' a ON o.id = a.optionId ' .
'WHERE o.questionId=:q AND o.timeStamp <= :ss
GROUP BY o.id
ORDER BY answerCount DESC, o.timeStamp, o.id ' . $limitSql;
}
else
{
$query ='SELECT o.*, count(DISTINCT a.id) AS answerCount FROM ' . $this->getTableName() . ' o ' .
'LEFT JOIN ' . $answerDao->getTableName() . ' a ON o.id = a.optionId ' .
'LEFT JOIN ' . $answerDao->getTableName() . ' a2 ON o.id = a2.optionId AND a2.userId IN (' . implode(', ', $priorUsers) . ') ' .
'WHERE o.questionId=:q AND o.timeStamp <= :ss
GROUP BY o.id
ORDER BY count(DISTINCT a2.userId) DESC, answerCount DESC, o.timeStamp, o.id ' . $limitSql;
}
$list = $this->dbo->queryForList($query, array(
'q' => $id,
'ss' => $startStamp
));
$countList = array();
$optionList = array();
foreach ( $list as $row )
{
$countList[$row['id']] = $row['answerCount'];
unset($row['answerCount']);
$option = new QUESTIONS_BOL_Option;
foreach ( $row as $k => $v )
{
$option->$k = $v;
}
$optionList[$row['id']] = $option;
}
return array(
'countList' => $countList,
'optionList' => $optionList
);
}
public function findCountByQuestionId( $id )
{
$example = new OW_Example();
$example->andFieldEqual('questionId', $id);
return $this->countByExample($example);
}
public function findByText( $questionId, $text )
{
$example = new OW_Example();
$example->andFieldEqual('questionId', $questionId);
$example->andFieldEqual('text', $text);
return $this->findObjectByExample($example);
}
public function findByQuestionId( $questionId )
{
$example = new OW_Example();
$example->andFieldEqual('questionId', $questionId);
return $this->findListByExample($example);
}
}