init

2026-05-12 21:10:38 +02:00
commit ab96d82fcf
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+<?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 string $_direction;
+
+    /**
+     * Constructor
+     *
+     * @param \Cake\Database\ExpressionInterface|string $field The field to order on.
+     * @param string $direction The direction to sort on.
+     */
+    public function __construct(ExpressionInterface|string $field, string $direction)
+    {
+        $this->_field = $field;
+        $this->_direction = strtolower($direction) === 'asc' ? 'ASC' : 'DESC';
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function sql(ValueBinder $binder): string
+    {
+        $field = $this->_field;
+        if ($field instanceof Query) {
+            $field = sprintf('(%s)', $field->sql($binder));
+        } elseif ($field instanceof ExpressionInterface) {
+            $field = $field->sql($binder);
+        }
+        assert(is_string($field));
+
+        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;
+        }
+    }
+}