/
IdentifierExpression.php
84 lines (75 loc) · 1.8 KB
/
IdentifierExpression.php
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<?php
/**
* PHP Version 5.4
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since CakePHP(tm) v 3.0.0
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
namespace Cake\Database\Expression;
use Cake\Database\ExpressionInterface;
use Cake\Database\ValueBinder;
/**
* Represents a single field name in the database
*
*/
class FieldExpression implements ExpressionInterface {
/**
* Holds the field string
*
* @var string
*/
protected $_field;
/**
* Constructor
*
* @param string $field The field this expression represents
* @return void
*/
public function __construct($field) {
$this->setField($field);
}
/**
* Sets the field this expression represents
*
* @param string $field
* @return void
*/
public function setField($field) {
$this->_field = $field;
}
/**
* Returns the field this expression represents
*
* @return string
*/
public function getField() {
return $this->_field;
}
/**
* Converts the expression to its string representation
*
* @param Cake\Database\ValueBinder $generator Placeholder generator object
* @return string
*/
public function sql(ValueBinder $generator) {
return $this->_field;
}
/**
* This method is a no-op, this is a leaf type of expression,
* hence there is nothing to traverse
*
* @param callable $visitor
* @return void
*/
public function traverse(callable $callable) {
}
}