DBField.class.php

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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 
00018     final class DBField extends Castable implements SQLTableName
00019     {
00020         private $field  = null;
00021         private $table  = null;
00022         
00023         public function __construct($field, $table = null)
00024         {
00025             $this->field = $field;
00026             
00027             if ($table)
00028                 $this->setTable($table);
00029         }
00030         
00034         public static function create($field, $table = null)
00035         {
00036             return new self($field, $table);
00037         }
00038         
00039         public function toDialectString(Dialect $dialect)
00040         {
00041             $field =
00042                 (
00043                     $this->table
00044                         ? $this->table->toDialectString($dialect).'.'
00045                         : null
00046                 )
00047                 .$dialect->quoteField($this->field);
00048             
00049             return
00050                 $this->cast
00051                     ? $dialect->toCasted($field, $this->cast)
00052                     : $field;
00053         }
00054         
00055         public function getField()
00056         {
00057             return $this->field;
00058         }
00059         
00063         public function getTable()
00064         {
00065             return $this->table;
00066         }
00067         
00072         public function setTable($table)
00073         {
00074             if ($this->table !== null)
00075                 throw new WrongStateException(
00076                     'you should not override setted table'
00077                 );
00078             
00079             if (!$table instanceof DialectString)
00080                 $this->table = new FromTable($table);
00081             else
00082                 $this->table = $table;
00083             
00084             return $this;
00085         }
00086     }
00087 ?>