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49 lines
No EOL
1.3 KiB
PHP
49 lines
No EOL
1.3 KiB
PHP
<?php
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/**
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* CDbExpression class file.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright Copyright © 2008-2009 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CDbExpression represents a DB expression that does not need escaping.
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* CDbExpression is mainly used in {@link CActiveRecord} as attribute values.
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* When inserting or updating a {@link CActiveRecord}, attribute values of
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* type CDbExpression will be directly put into the corresponding SQL statement
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* without escaping. A typical usage is that an attribute is set with 'NOW()'
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* expression so that saving the record would fill the corresponding column
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* with the current DB server timestamp.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @version $Id: CDbExpression.php 544 2009-01-18 13:27:31Z qiang.xue $
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* @package system.db.schema
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* @since 1.0.2
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*/
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class CDbExpression extends CComponent
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{
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/**
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* @var string the DB expression
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*/
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public $expression;
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/**
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* Constructor.
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* @param string the DB expression
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*/
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public function __construct($expression)
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{
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$this->expression=$expression;
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}
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/**
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* String magic method
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* @return string the DB expression
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*/
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public function __toString()
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{
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return $this->expression;
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}
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} |