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application/Espo/Modules/Crm/Tools/MassEmail/Util.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\Modules\Crm\Tools\MassEmail;
+
+use Espo\Core\Utils\Metadata;
+use Espo\ORM\Defs;
+use Espo\Modules\Crm\Entities\TargetList;
+use RuntimeException;
+
+class Util
+{
+    /** @var string[] */
+    private array $targetLinkList;
+
+    public function __construct(
+        private Defs $ormDefs,
+        private Metadata $metadata
+    ) {
+        $this->targetLinkList = $this->metadata->get(['scopes', 'TargetList', 'targetLinkList']) ?? [];
+    }
+
+    public function getLinkByEntityType(string $entityType): string
+    {
+        foreach ($this->targetLinkList as $link) {
+            $itemEntityType = $this->ormDefs
+                ->getEntity(TargetList::ENTITY_TYPE)
+                ->getRelation($link)
+                ->getForeignEntityType();
+
+            if ($itemEntityType === $entityType) {
+                return $link;
+            }
+        }
+
+        throw new RuntimeException("No link for $entityType.");
+    }
+}