Initial commit

application/Espo/Core/FieldProcessing/VersionNumber/BeforeSaveProcessor.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\FieldProcessing\VersionNumber;
+
+use Espo\Core\Name\Field;
+use Espo\Core\Utils\Metadata;
+use Espo\ORM\Entity;
+
+class BeforeSaveProcessor
+{
+    private const ATTRIBUTE_VERSION_NUMBER = Field::VERSION_NUMBER;
+
+    public function __construct(private Metadata $metadata)
+    {}
+
+    public function process(Entity $entity): void
+    {
+        $optimisticConcurrencyControl = $this->metadata
+            ->get(['entityDefs', $entity->getEntityType(), 'optimisticConcurrencyControl']);
+
+        if (!$optimisticConcurrencyControl) {
+            return;
+        }
+
+        if ($entity->isNew()) {
+            $entity->set(self::ATTRIBUTE_VERSION_NUMBER, 1);
+
+            return;
+        }
+
+        $entity->clear(self::ATTRIBUTE_VERSION_NUMBER);
+
+        if (!$entity->hasFetched(self::ATTRIBUTE_VERSION_NUMBER)) {
+            return;
+        }
+
+        $versionNumber = $entity->getFetched(self::ATTRIBUTE_VERSION_NUMBER);
+
+        if ($versionNumber === null) {
+            $versionNumber = 0;
+        }
+
+        $versionNumber++;
+
+        $entity->set(self::ATTRIBUTE_VERSION_NUMBER, $versionNumber);
+    }
+}