# GroupBy.class.php

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    00001 <?php
    00002 /****************************************************************************
    00003  *   Copyright (C) 2005-2007 by Anton E. Lebedevich, 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
    00016     final class GroupBy extends FieldTable implements MappableObject
    00017     {
    00021         public static function create($field)
    00022         {
    00023             return new self($field);
    00024         }
    00025
    00029         public function toMapped(ProtoDAO $dao, JoinCapableQuery $query)
    00030         {
    00031             return self::create($dao->guessAtom($this->field, $query));
    00032         }
    00033
    00034         public function toDialectString(Dialect $dialect)
    00035         {
    00036             if (
    00037                 $this->field instanceof SelectQuery
    00038                 || $this->field instanceof LogicalObject
    00039             )
    00040                 return '('.$dialect->fieldToString($this->field).')';
    00041             else
    00042                 return parent::toDialectString($dialect);
    00043         }
    00044     }
    00045 ?>