LaysenseAuth/vendor/cakephp/database/Expression/OrderClauseExpression.php
2024-08-09 22:16:39 +08:00

91 lines
2.3 KiB
PHP

<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://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. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database\Expression;
use Cake\Database\ExpressionInterface;
use Cake\Database\Query;
use Cake\Database\ValueBinder;
use Closure;
/**
* An expression object for complex ORDER BY clauses
*/
class OrderClauseExpression implements ExpressionInterface, FieldInterface
{
use FieldTrait;
/**
* The direction of sorting.
*
* @var string
*/
protected $_direction;
/**
* Constructor
*
* @param \Cake\Database\ExpressionInterface|string $field The field to order on.
* @param string $direction The direction to sort on.
*/
public function __construct($field, $direction)
{
$this->_field = $field;
$this->_direction = strtolower($direction) === 'asc' ? 'ASC' : 'DESC';
}
/**
* @inheritDoc
*/
public function sql(ValueBinder $binder): string
{
/** @var \Cake\Database\ExpressionInterface|string $field */
$field = $this->_field;
if ($field instanceof Query) {
$field = sprintf('(%s)', $field->sql($binder));
} elseif ($field instanceof ExpressionInterface) {
$field = $field->sql($binder);
}
return sprintf('%s %s', $field, $this->_direction);
}
/**
* @inheritDoc
*/
public function traverse(Closure $callback)
{
if ($this->_field instanceof ExpressionInterface) {
$callback($this->_field);
$this->_field->traverse($callback);
}
return $this;
}
/**
* Create a deep clone of the order clause.
*
* @return void
*/
public function __clone()
{
if ($this->_field instanceof ExpressionInterface) {
$this->_field = clone $this->_field;
}
}
}