Initial commit

application/Espo/Tools/LinkManager/Hook/Hooks/ForeignFieldDelete.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\LinkManager\Hook\Hooks;
+
+use Espo\Core\ORM\Type\FieldType;
+use Espo\Tools\LinkManager\Hook\DeleteHook;
+use Espo\Tools\LinkManager\Params;
+use Espo\Core\Utils\Metadata;
+
+use Espo\ORM\Defs;
+
+class ForeignFieldDelete implements DeleteHook
+{
+    public function __construct(
+        private Metadata $metadata,
+        private Defs $defs
+    ) {}
+
+    public function process(Params $params): void
+    {
+        $this->processInternal($params->getEntityType(), $params->getLink());
+
+        if ($params->getForeignEntityType()) {
+            $this->processInternal($params->getForeignEntityType(), $params->getForeignLink());
+        }
+    }
+
+    private function processInternal(string $entityType, string $link): void
+    {
+        if (!$this->defs->hasEntity($entityType)) {
+            return;
+        }
+
+        foreach ($this->defs->getEntity($entityType)->getFieldList() as $fieldDefs) {
+            if ($fieldDefs->getType() !== FieldType::FOREIGN) {
+                continue;
+            }
+
+            if ($fieldDefs->getParam('link') === $link) {
+                $this->deleteForeignField($entityType, $fieldDefs->getName());
+            }
+        }
+    }
+
+    private function deleteForeignField(string $entityType, string $field): void
+    {
+        $this->metadata->delete('entityDefs', $entityType, ['fields.' . $field]);
+
+        $this->metadata->save();
+    }
+}