Initial commit

application/Espo/Core/Record/ConcurrencyControl/Optimistic/Result.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\Record\ConcurrencyControl\Optimistic;
+
+use stdClass;
+
+readonly class Result
+{
+    /**
+     * @param string[] $fieldList Changed fields.
+     * @param stdClass $values Previous values.
+     * @param int $versionNumber A previous version number.
+     */
+    public function __construct(
+        public array $fieldList,
+        public stdClass $values,
+        public int $versionNumber,
+    ) {}
+}

application/Espo/Core/Record/ConcurrencyControl/OptimisticProcessor.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\Record\ConcurrencyControl;
+
+use Espo\Core\Name\Field;
+use Espo\Core\Record\ConcurrencyControl\Optimistic\Result;
+use Espo\Core\Utils\FieldUtil;
+use Espo\ORM\BaseEntity;
+use Espo\ORM\Defs\Params\FieldParam;
+use Espo\ORM\Entity;
+use Espo\ORM\EntityManager;
+
+/**
+ * @internal
+ */
+class OptimisticProcessor
+{
+    public function __construct(
+        private EntityManager $entityManager,
+        private FieldUtil $fieldUtil,
+    ) {}
+
+    public function process(Entity $entity, int $versionNumber): ?Result
+    {
+        $previousVersionNumber = $entity->getFetched(Field::VERSION_NUMBER);
+
+        if ($previousVersionNumber === null) {
+            return null;
+        }
+
+        if ($versionNumber === $previousVersionNumber) {
+            return null;
+        }
+
+        $changedFieldList = [];
+
+        $entityDefs = $this->entityManager
+            ->getDefs()
+            ->getEntity($entity->getEntityType());
+
+        foreach ($entityDefs->getFieldList() as $fieldDefs) {
+            $field = $fieldDefs->getName();
+
+            if (
+                $fieldDefs->getParam('optimisticConcurrencyControlIgnore') ||
+                $fieldDefs->getParam(FieldParam::READ_ONLY)
+            ) {
+                continue;
+            }
+
+            foreach ($this->fieldUtil->getActualAttributeList($entityDefs->getName(), $field) as $attribute) {
+                if (
+                    $entity instanceof BaseEntity &&
+                    !$entity->isAttributeWritten($attribute)
+                ) {
+                    continue;
+                }
+
+                if (!$entity->hasFetched($attribute)) {
+                    continue;
+                }
+
+                if ($entity->isAttributeChanged($attribute)) {
+                    $changedFieldList[] = $field;
+
+                    continue 2;
+                }
+            }
+        }
+
+        if ($changedFieldList === []) {
+            return null;
+        }
+
+        $values = (object) [];
+
+        foreach ($changedFieldList as $field) {
+            foreach ($this->fieldUtil->getAttributeList($entityDefs->getName(), $field) as $attribute) {
+                $values->$attribute = $entity->getFetched($attribute);
+            }
+        }
+
+        return new Result(
+            fieldList: $changedFieldList,
+            values: $values,
+            versionNumber: $previousVersionNumber,
+        );
+    }
+}