# 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
    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 ?>