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372 lines
11 KiB
PHP
372 lines
11 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM – Open Source CRM application.
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* Copyright (C) 2014-2024 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU Affero General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU Affero General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\ORM\Relation;
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use Espo\ORM\BaseEntity;
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use Espo\ORM\Defs\Defs;
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use Espo\ORM\Defs\Params\RelationParam;
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use Espo\ORM\Entity;
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use Espo\ORM\EntityCollection;
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use Espo\ORM\EntityManager;
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use Espo\ORM\Name\Attribute;
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use Espo\ORM\Query\Part\Order;
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use Espo\ORM\Type\RelationType;
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use LogicException;
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use RuntimeException;
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/**
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* @internal
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*/
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class RDBRelations implements Relations
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{
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/** @var array<string, Entity|EntityCollection<Entity>|null> */
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private array $data = [];
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/** @var array<string, Entity|null> */
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private array $setData = [];
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private ?Entity $entity = null;
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/** @var string[] */
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private array $manyTypeList = [
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RelationType::MANY_MANY,
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RelationType::HAS_MANY,
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RelationType::HAS_CHILDREN,
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];
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private Defs $defs;
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public function __construct(
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private EntityManager $entityManager,
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) {
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$this->defs = $this->entityManager->getDefs();
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}
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public function setEntity(Entity $entity): void
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{
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if ($this->entity) {
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throw new LogicException("Entity is already set.");
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}
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$this->entity = $entity;
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}
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public function reset(string $relation): void
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{
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unset($this->data[$relation]);
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unset($this->setData[$relation]);
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}
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public function resetAll(): void
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{
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$this->data = [];
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$this->setData = [];
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}
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public function isSet(string $relation): bool
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{
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return array_key_exists($relation, $this->setData);
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}
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/**
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* @return Entity|null
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*/
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public function getSet(string $relation): Entity|null
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{
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if (!array_key_exists($relation, $this->setData)) {
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throw new RuntimeException("Relation '$relation' is not set.");
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}
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return $this->setData[$relation];
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}
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/**
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* @param Entity|null $related
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*/
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public function set(string $relation, Entity|null $related): void
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{
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if (!$this->entity) {
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throw new LogicException("No entity set.");
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}
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$type = $this->getRelationType($relation);
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if (!$type) {
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throw new LogicException("Relation '$relation' does not exist.");
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}
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if (
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!in_array($type, [
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RelationType::BELONGS_TO,
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RelationType::BELONGS_TO_PARENT,
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RelationType::HAS_ONE,
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])
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) {
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throw new LogicException("Relation type '$type' is not supported for setting.");
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}
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if ($related) {
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$nameAttribute = $this->entityManager
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->getDefs()
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->getEntity($this->entity->getEntityType())
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->getRelation($relation)
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->getParam('nameAttribute') ?? 'name';
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$valueMap = [
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$relation . 'Id' => $related->getId(),
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$relation . 'Name' => $related->get($nameAttribute),
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];
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if ($type === RelationType::BELONGS_TO_PARENT) {
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$valueMap[$relation . 'Type'] = $related->getEntityType();
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}
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} else {
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$valueMap = [
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$relation . 'Id' => null,
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$relation . 'Name' => null,
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];
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if ($type === RelationType::BELONGS_TO_PARENT) {
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$valueMap[$relation . 'Type'] = null;
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}
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}
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$this->entity->setMultiple($valueMap);
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$this->setData[$relation] = $related;
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}
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public function getOne(string $relation): ?Entity
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{
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$entity = $this->get($relation);
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if ($entity instanceof EntityCollection) {
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throw new LogicException("Not an entity. Use `getMany` instead.");
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}
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return $entity;
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}
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/**
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* @return EntityCollection<Entity>
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*/
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public function getMany(string $relation): EntityCollection
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{
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$collection = $this->get($relation);
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if (!$collection instanceof EntityCollection) {
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throw new LogicException("Not a collection. Use `getOne` instead.");
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}
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/** @var EntityCollection<Entity> */
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return $collection;
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}
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/**
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* @param string $relation
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* @return Entity|EntityCollection<Entity>|null
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*/
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private function get(string $relation): Entity|EntityCollection|null
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{
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if (array_key_exists($relation, $this->setData)) {
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return $this->setData[$relation];
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}
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if (!array_key_exists($relation, $this->data)) {
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if (!$this->entity) {
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throw new LogicException("No entity set.");
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}
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$isMany = in_array($this->getRelationType($relation), $this->manyTypeList);
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$this->data[$relation] = $isMany ?
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$this->findMany($relation) :
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$this->findOne($relation);
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}
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$object = $this->data[$relation];
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if ($object instanceof EntityCollection) {
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/** @var EntityCollection<Entity> $object */
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$object = new EntityCollection(iterator_to_array($object));
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}
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return $object;
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}
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private function findOne(string $relation): ?Entity
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{
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if (!$this->entity) {
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throw new LogicException();
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}
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if (!$this->entity->hasId()) {
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return null;
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}
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$foreignEntity = $this->getPartiallyLoadedForeignEntity($relation);
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if ($foreignEntity === false) {
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// Parent type does not exist. Not throwing an error deliberately.
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return null;
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}
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if ($foreignEntity) {
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return $foreignEntity;
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}
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return $this->entityManager
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->getRelation($this->entity, $relation)
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->findOne();
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}
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/**
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* @return EntityCollection<Entity>
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*/
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private function findMany(string $relation): EntityCollection
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{
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if (!$this->entity) {
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throw new LogicException();
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}
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if (!$this->entity->hasId()) {
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/** @var EntityCollection<Entity> */
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return new EntityCollection();
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}
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$relationDefs = $this->defs
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->getEntity($this->entity->getEntityType())
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->getRelation($relation);
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$orderBy = null;
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$order = null;
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if ($relationDefs->getParam('orderBy')) {
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$orderBy = $relationDefs->getParam('orderBy');
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if ($relationDefs->getParam('order')) {
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$order = strtoupper($relationDefs->getParam('order')) === Order::DESC ? Order::DESC : Order::ASC;
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}
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}
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$builder = $this->entityManager->getRelation($this->entity, $relation);
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if ($orderBy) {
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$builder->order($orderBy, $order);
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}
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$collection = $builder->find();
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if (!$collection instanceof EntityCollection) {
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$collection = new EntityCollection(iterator_to_array($collection));
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}
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/** @var EntityCollection<Entity> */
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return $collection;
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}
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private function getRelationType(string $relation): ?string
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{
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if (!$this->entity) {
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throw new LogicException();
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}
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return $this->defs
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->getEntity($this->entity->getEntityType())
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->tryGetRelation($relation)
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?->getType();
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}
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private function getPartiallyLoadedForeignEntity(string $relation): BaseEntity|false|null
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{
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if (!$this->entity) {
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throw new LogicException();
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}
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$defs = $this->defs
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->getEntity($this->entity->getEntityType())
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->getRelation($relation);
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if (!$defs->getParam(RelationParam::DEFERRED_LOAD)) {
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return null;
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}
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$relationType = $defs->getType();
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$id = null;
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$foreignEntityType = null;
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if ($relationType === RelationType::BELONGS_TO) {
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$foreignEntityType = $defs->getForeignEntityType();
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$nameAttribute = $relation . 'Name';
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$id = $this->entity->get($relation . 'Id');
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$name = $this->entity->get($nameAttribute);
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if (
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$id &&
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$name === null &&
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$this->entity->hasAttribute($nameAttribute) &&
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$this->entity->has($nameAttribute)
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) {
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$hasDeleted = $this->defs
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->getEntity($foreignEntityType)
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->hasAttribute(Attribute::DELETED);
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if ($hasDeleted) {
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// Could be either soft-deleted or have name set to null.
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// We resort to not using a partially loaded entity.
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return null;
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}
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}
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} else if ($relationType === RelationType::BELONGS_TO_PARENT) {
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$foreignEntityType = $this->entity->get($relation . 'Type');
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$id = $this->entity->get($relation . 'Id');
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if (!$this->entityManager->hasRepository($foreignEntityType)) {
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return false;
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}
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}
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if (!$foreignEntityType || !$id) {
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return null;
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}
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$foreignEntity = $this->entityManager->getNewEntity($foreignEntityType);
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if (!$foreignEntity instanceof BaseEntity) {
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return null;
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}
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$foreignEntity->set(Attribute::ID, $id);
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$foreignEntity->setAsFetched();
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$foreignEntity->setAsPartiallyLoaded();
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return $foreignEntity;
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}
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}
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