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doctrine2/lib/Doctrine/Query/Orderby.php
2007-02-07 14:16:07 +00:00

82 lines
2.6 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_Query_Part');
/**
* Doctrine_Query_Orderby
*
* @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_Query_Orderby extends Doctrine_Query_Part
{
/**
* DQL ORDER BY PARSER
* parses the order by part of the query string
*
* @param string $str
* @return void
*/
public function parse($str)
{
$ret = array();
foreach (explode(',', trim($str)) as $r) {
$r = trim($r);
$e = explode(' ', $r);
$a = explode('.', $e[0]);
if (count($a) > 1) {
$field = array_pop($a);
$reference = implode('.', $a);
$name = end($a);
$this->query->load($reference, false);
$alias = $this->query->getTableAlias($reference);
$tname = $this->query->getTable($alias)->getTableName();
$r = $alias . '.' . $field;
} else {
$field = $this->query->getAggregateAlias($e[0]);
$r = $field;
}
if (isset($e[1])) {
$r .= ' ' . $e[1];
}
$ret[] = $r;
}
return implode(', ', $ret);
}
public function __toString()
{
return ( ! empty($this->parts))?implode(', ', $this->parts):'';
}
}