SQLBaseJoin.class.php

Go to the documentation of this file.
00001 <?php
00002 /***************************************************************************
00003  *   Copyright (C) 2005-2008 by Anton E. Lebedevich                        *
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 SQLBaseJoin implements SQLTableName, Aliased
00016     {
00017         protected $subject  = null;
00018         protected $alias    = null;
00019         protected $logic    = null;
00020         
00021         public function __construct($subject, LogicalObject $logic, $alias)
00022         {
00023             $this->subject  = $subject;
00024             $this->alias    = $alias;
00025             $this->logic    = $logic;
00026         }
00027         
00028         public function getAlias()
00029         {
00030             return $this->alias;
00031         }
00032         
00033         public function getTable()
00034         {
00035             return $this->alias ? $this->alias : $this->subject;
00036         }
00037         
00038         protected function baseToString(Dialect $dialect, $logic = null)
00039         {
00040             return
00041                 $logic.'JOIN '
00042                     .($this->subject instanceof DialectString
00043                         ?
00044                             $this->subject instanceof Query
00045                                 ? '('.$this->subject->toDialectString($dialect).')'
00046                                 : $this->subject->toDialectString($dialect)
00047                         : $dialect->quoteTable($this->subject)
00048                     )
00049                 .($this->alias ? ' AS '.$dialect->quoteTable($this->alias) : null)
00050                 .' ON '.$this->logic->toDialectString($dialect);
00051         }
00052     }
00053 ?>