00001 <?php 00002 /*************************************************************************** 00003 * Copyright (C) 2007 by Konstantin V. Arkhipov * 00004 * * 00005 * This program is free software; you can redistribute it and/or modify * 00006 * it under the terms of the GNU Lesser General Public License as * 00007 * published by the Free Software Foundation; either version 3 of the * 00008 * License, or (at your option) any later version. * 00009 * * 00010 ***************************************************************************/ 00011 00015 abstract class CountProjection extends BaseProjection 00016 { 00020 public function process(Criteria $criteria, JoinCapableQuery $query) 00021 { 00022 return $query->get($this->getFunction($criteria, $query)); 00023 } 00024 00028 protected function getFunction( 00029 Criteria $criteria, 00030 JoinCapableQuery $query 00031 ) 00032 { 00033 Assert::isNotNull($this->property); 00034 00035 return 00036 SQLFunction::create( 00037 'count', 00038 $this->property 00039 ? $criteria->getDao()->guessAtom($this->property, $query) 00040 : $criteria->getDao()->getIdName() 00041 )-> 00042 setAlias($this->alias); 00043 } 00044 } 00045 ?>