snapshot of https://github.com/espocrm/espocrm.git (master, 2026-09-18; blobs > 131072B omitted)

application/Espo/Tools/DynamicLogic/CascadingFields/Item.php

@@ -0,0 +1,39 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 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\DynamicLogic\CascadingFields;
+
+readonly class Item
+{
+    public function __construct(
+        public string $localField,
+        public string $foreignField,
+        public bool $matchRequired,
+    ) {}
+}

application/Espo/Tools/DynamicLogic/CascadingFields/ItemsProvider.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 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\DynamicLogic\CascadingFields;
+
+use Espo\Core\Utils\Metadata;
+
+class ItemsProvider
+{
+    public function __construct(
+        private Metadata $metadata,
+    ) {}
+
+    /**
+     * @return Item[]
+     */
+    public function get(string $entityType, string $field): array
+    {
+        /** @var array<string, mixed>[] $rawItems */
+        $rawItems = $this->metadata->get("logicDefs.$entityType.cascadingFields.$field.items") ?? [];
+
+        $items = [];
+
+        foreach ($rawItems as $raw) {
+            $localField = $raw['localField'] ?? null;
+            $foreignField = $raw['foreignField'] ?? null;
+            $matchRequired = $raw['matchRequired'] ?? false;
+
+            if (!$localField || !$foreignField) {
+                continue;
+            }
+
+            $items[] = new Item(
+                localField: $localField,
+                foreignField: $foreignField,
+                matchRequired: $matchRequired,
+            );
+        }
+
+        return $items;
+    }
+}

application/Espo/Tools/DynamicLogic/CascadingFields/ValidationHelper.php

@@ -0,0 +1,106 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2026 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\DynamicLogic\CascadingFields;
+
+use Espo\Core\FieldValidation\Validator\Failure;
+use Espo\Core\ORM\Entity as CoreEntity;
+use Espo\Core\ORM\Type\FieldType;
+use Espo\ORM\Defs;
+
+/**
+ * @internal
+ */
+class ValidationHelper
+{
+    public function __construct(
+        private Defs $defs,
+    ) {}
+
+    public function validateItem(CoreEntity $entity, CoreEntity $valueEntity, Item $item): ?Failure
+    {
+        if (!$item->matchRequired) {
+            return null;
+        }
+
+        $localIds = $this->getIds($entity, $item->localField);
+        $foreignIds = $this->getIds($valueEntity, $item->foreignField) ?? [];
+
+        if (!$localIds) {
+            if ($foreignIds) {
+                return Failure::create();
+            }
+
+            return null;
+        }
+
+        if ($this->getType($valueEntity, $item->foreignField) === FieldType::LINK_MULTIPLE) {
+            if (!array_diff($localIds, $foreignIds)) {
+                return null;
+            }
+
+            return Failure::create();
+        }
+
+        if (array_intersect($localIds, $foreignIds)) {
+            return null;
+        }
+
+        return Failure::create();
+    }
+
+    /**
+     * @return ?string[]
+     */
+    private function getIds(CoreEntity $entity, string $field): ?array
+    {
+        $type = $this->getType($entity, $field);
+
+        if ($type === FieldType::LINK_MULTIPLE) {
+            return $entity->getLinkMultipleIdList($field);
+        }
+
+        $localId = $entity->get($field . 'Id');
+
+        if (!$localId) {
+            return null;
+        }
+
+        return [$localId];
+    }
+
+
+    private function getType(CoreEntity $entity, string $field): ?string
+    {
+        return $this->defs
+            ->getEntity($entity->getEntityType())
+            ->tryGetField($field)
+            ?->getType();
+    }
+}