Initial commit

application/Espo/Tools/EntityManager/Hook/Hooks/DeleteHasChildrenLinks.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\EntityManager\Hook\Hooks;
+
+use Espo\Core\Utils\Metadata;
+use Espo\ORM\Defs\Params\RelationParam;
+use Espo\ORM\Type\RelationType;
+use Espo\Tools\EntityManager\Hook\DeleteHook;
+use Espo\Tools\EntityManager\Params;
+
+/**
+ * @noinspection PhpUnused
+ */
+class DeleteHasChildrenLinks implements DeleteHook
+{
+    public function __construct(
+        private Metadata $metadata,
+    ) {}
+
+    public function process(Params $params): void
+    {
+        /** @var array<string, array<string, mixed>> $entityDefs */
+        $entityDefs = $this->metadata->get('entityDefs', []);
+
+        foreach ($entityDefs as $entityType => $defs) {
+            /** @var array<string, array<string, mixed>> $links */
+            $links = $defs['links'] ?? [];
+
+            foreach ($links as $link => $linkDefs) {
+                $isCustom = $linkDefs['isCustom'] ?? false;
+                $foreignEntityType = $linkDefs[RelationParam::ENTITY] ?? null;
+                $type = $linkDefs[RelationParam::TYPE] ?? null;
+
+                if (
+                    !$isCustom ||
+                    $foreignEntityType !== $params->getName() ||
+                    $type !== RelationType::HAS_CHILDREN
+                ) {
+                    continue;
+                }
+
+                $this->metadata->delete('entityDefs', $entityType, "links.$link");
+            }
+        }
+
+        $this->metadata->save();
+    }
+}