64 lines
2.4 KiB
PHP
64 lines
2.4 KiB
PHP
|
<?php
|
||
|
|
/*
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* 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
|
||
|
|
* OWNER 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.
|
||
|
|
*
|
||
|
|
* This software consists of voluntary contributions made by many individuals
|
||
|
|
* and is licensed under the LGPL. For more information, see
|
||
|
|
* <http://www.phpdoctrine.com>.
|
||
|
|
*/
|
||
|
|
Doctrine::autoload('Doctrine_Connection');
|
||
|
|
/**
|
||
|
|
* Doctrine_Connection_Db2
|
||
|
|
*
|
||
|
|
* @package Doctrine
|
||
|
|
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
|
||
|
|
* @category Object Relational Mapping
|
||
|
|
* @link www.phpdoctrine.com
|
||
|
|
* @since 1.0
|
||
|
|
* @version $Revision$
|
||
|
|
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
|
||
|
|
*/
|
||
|
|
class Doctrine_Connection_Db2 extends Doctrine_Connection {
|
||
|
|
/**
|
||
|
|
* Adds an driver-specific LIMIT clause to the query
|
||
|
|
*
|
||
|
|
* @param string $query query to modify
|
||
|
|
* @param integer $limit limit the number of rows
|
||
|
|
* @param integer $offset start reading from given offset
|
||
|
|
* @return string the modified query
|
||
|
|
*/
|
||
|
|
public function modifyLimitQuery($query, $limit, $offset) {
|
||
|
|
if($limit <= 0)
|
||
|
|
return $sql;
|
||
|
|
|
||
|
|
if($offset == 0) {
|
||
|
|
return $sql . ' FETCH FIRST '. $count .' ROWS ONLY';
|
||
|
|
} else {
|
||
|
|
|
||
|
|
$sqlPieces = explode('from', $sql);
|
||
|
|
$select = $sqlPieces[0];
|
||
|
|
$table = $sqlPieces[1];
|
||
|
|
|
||
|
|
$col = explode('select', $select);
|
||
|
|
|
||
|
|
$sql = 'WITH OFFSET AS(' . $select . ', ROW_NUMBER() ' .
|
||
|
|
'OVER(ORDER BY ' . $col[1] . ') AS dctrn_rownum FROM ' . $table . ')' .
|
||
|
|
$select . 'FROM OFFSET WHERE dctrn_rownum BETWEEN ' . $offset .
|
||
|
|
'AND ' . ($offset + $count - 1);
|
||
|
|
return $sql;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|