CountProjection.class.php

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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 /* $Id: CountProjection.class.php 4687 2007-12-09 18:57:18Z voxus $ */
00012 
00016     abstract class CountProjection extends BaseProjection
00017     {
00021         public function process(Criteria $criteria, JoinCapableQuery $query)
00022         {
00023             return $query->get($this->getFunction($criteria, $query));
00024         }
00025         
00029         protected function getFunction(
00030             Criteria $criteria,
00031             JoinCapableQuery $query
00032         )
00033         {
00034             return
00035                 SQLFunction::create(
00036                     'count',
00037                     $this->property
00038                         ? $criteria->getDao()->guessAtom($this->property, $query)
00039                         : $criteria->getDao()->getIdName()
00040                 )->
00041                 setAlias($this->alias);
00042         }
00043     }
00044 ?>

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