TYPO3 v15 dev-main snapshot ()

Classes/Schema/PassiveRelation.php

@@ -0,0 +1,50 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Schema;
+
+/**
+ * A relation from another field / schema.
+ *
+ * Examples:
+ * - A table "tx_myextension_author" has a passive relation FROM the table "tx_books" and its field "authors".
+ * - A TCA table of type inline has a passthrough field in the child table, and that's a PASSIVE relation FROM the
+ *   parent table.
+ */
+final readonly class PassiveRelation
+{
+    public function __construct(
+        private string $fromTable,
+        private ?string $fromField,
+        private ?string $flexPointer,
+    ) {}
+
+    public function fromTable(): string
+    {
+        return $this->fromTable;
+    }
+
+    public function fromField(): ?string
+    {
+        return $this->fromField;
+    }
+
+    public static function __set_state(array $state): self
+    {
+        return new self(...$state);
+    }
+}