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application/Espo/Core/Utils/Address/CountryDataProvider.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\Core\Utils\Address;
+
+use Espo\Core\Name\Field;
+use Espo\Core\Utils\Config;
+use Espo\Core\Utils\DataCache;
+use Espo\Entities\AddressCountry;
+use Espo\ORM\EntityManager;
+use Espo\ORM\Query\Part\Order;
+
+class CountryDataProvider
+{
+    /** @var ?array{list: string[], preferredList: string[]} */
+    private ?array $data = null;
+    private bool $useCache;
+
+    private const CACHE_KEY = 'addressCountryData';
+    private const LIMIT = 500;
+
+    public function __construct(
+        private DataCache $dataCache,
+        private EntityManager $entityManager,
+        Config\SystemConfig $systemConfig,
+    ) {
+        $this->useCache = $systemConfig->useCache();
+    }
+
+    /**
+     * @return array{list: string[], preferredList: string[]}
+     */
+    public function get(): array
+    {
+        if ($this->data === null) {
+            $this->data = $this->load();
+        }
+
+        return $this->data;
+    }
+
+    /**
+     * @return array{list: string[], preferredList: string[]}
+     */
+    private function load(): array
+    {
+        if ($this->useCache && $this->dataCache->has(self::CACHE_KEY)) {
+            $list = $this->dataCache->get(self::CACHE_KEY);
+
+            if (
+                is_array($list) &&
+                is_array($list['list'] ?? null) &&
+                is_array($list['preferredList'] ?? null)
+            ) {
+                /** @var array{list: string[], preferredList: string[]} */
+                return $list;
+            }
+        }
+
+        $list = [];
+        $preferredList = [];
+
+        /** @var iterable<AddressCountry> $collection */
+        $collection = $this->entityManager
+            ->getRDBRepositoryByClass(AddressCountry::class)
+            ->sth()
+            ->select([Field::NAME, 'isPreferred'])
+            ->order(Field::NAME, Order::ASC)
+            ->limit(0, self::LIMIT)
+            ->find();
+
+        foreach ($collection as $entity) {
+            $list[] = $entity->getName();
+
+            if ($entity->isPreferred()) {
+                $preferredList[] = $entity->getName();
+            }
+        }
+
+        if ($this->useCache) {
+            $this->dataCache->store(self::CACHE_KEY, [
+                'list' => $list,
+                'preferredList' => $preferredList,
+            ]);
+        }
+
+        return [
+            'list' => $list,
+            'preferredList' => $preferredList,
+        ];
+    }
+}