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<?php |
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namespace AlgoWeb\PODataLaravel\Models; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\Association; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationFactory; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubBase; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubMonomorphic; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubPolymorphic; |
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use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityGubbins; |
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use POData\Common\InvalidOperationException; |
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class MetadataRelationshipContainer implements IMetadataRelationshipContainer |
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{ |
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/** |
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* @var EntityGubbins[] all entities keyed by class name |
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*/ |
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private $entities = []; |
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/** |
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* @var AssociationStubBase[][][] AssociationStubMonomorphic keyed as [BaseClass][targetClass] |
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*/ |
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private $stubs = [ |
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]; |
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/** |
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* A Complete Set of Assocations Keyed by classname |
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* |
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* @var Association[] |
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*/ |
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private $assocations = []; |
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/** |
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* Add entity to Container. |
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* |
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* @param EntityGubbins $entity |
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*/ |
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public function addEntity(EntityGubbins $entity): void |
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{ |
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$baseType = $entity->getClassName(); |
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$this->entities[$baseType] = $entity; |
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if (array_key_exists($baseType, $this->stubs)) { |
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throw new \InvalidArgumentException(sprintf('%s already added', $baseType)); |
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} |
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$this->stubs[$baseType] = []; |
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foreach ($entity->getStubs() as $stub) { |
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$this->stubs[$baseType][$stub->getTargType()][] = $stub; |
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} |
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} |
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private function buildAssocations(): void |
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{ |
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array_walk_recursive($this->stubs, [$this, 'buildAssocationFromStub'] ); |
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} |
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/** |
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* @param string $baseType |
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* @param string $targetType |
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* @return AssociationStubBase[] |
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*/ |
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private function getStubs(?string $baseType, ?string $targetType): array |
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{ |
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if($baseType === null || |
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!array_key_exists($baseType, $this->stubs) || |
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!array_key_exists($targetType, $this->stubs[$baseType])){ |
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return []; |
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} |
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return $this->stubs[$baseType][$targetType]; |
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} |
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private function buildAssocationFromStub(AssociationStubBase $item) |
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{ |
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$baseTypeCheck = ($item instanceof AssociationStubPolymorphic && |
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count($item->getThroughFieldChain()) == 3) ? null : $item->getBaseType(); |
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$otherCandidates = array_filter($this->getStubs($item->getTargType(), $baseTypeCheck), [$item, 'isCompatible']); |
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$assocations = array_reduce($otherCandidates, |
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function ($carry, $candidate) use ($item) { |
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$newAssocation = AssociationFactory::getAssocationFromStubs($candidate, $item); |
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$carry[spl_object_hash($newAssocation)] = $newAssocation; |
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return $carry; |
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}, |
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[]); |
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$this->addAssocations($assocations); |
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} |
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private function addAssocations(array $additionals){ |
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$this->assocations = array_merge($this->assocations, $additionals); |
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} |
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/** |
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* returns all Relation Stubs that are permitted at the other end. |
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* |
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* @param $className |
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* @param $relName |
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* @return AssociationStubBase[] |
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*/ |
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public function getRelationsByRelationName(string $className, string $relName): array |
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{ |
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$this->checkClassExists($className); |
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if (!array_key_exists($relName, $this->entities[$className]->getStubs())) { |
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$msg = 'Relation %s not registered on %s'; |
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throw new \InvalidArgumentException(sprintf($msg,$relName,$className)); |
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} |
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if(empty($this->assocations)) { |
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$this->buildAssocations(); |
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} |
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$entites = $this->entities[$className]; |
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$relation = $entites->getStubs()[$relName]; |
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return array_reduce($relation->getAssocations(), function($carry, Association $item) use ($relation){ |
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$carry[] = ($item->getFirst() === $relation) ? $item->getLast() : $item->getFirst(); |
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return $carry; |
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},[]); |
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} |
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/** |
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* gets All Association On a given class. |
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* |
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* @param string $className |
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* @return Association[] |
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*/ |
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public function getRelationsByClass(string $className): array |
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{ |
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if(empty($this->assocations)){ |
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$this->buildAssocations(); |
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} |
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$this->checkClassExists($className); |
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return array_reduce($this->entities[$className]->getStubs(), function($carry, AssociationStubBase $item){ |
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return array_merge($carry, $item->getAssocations()); |
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},[]); |
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} |
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/** |
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* @param string $className |
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*/ |
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protected function checkClassExists(string $className) |
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{ |
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if (!$this->hasClass($className)) { |
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$msg = '%s does not exist in holder'; |
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throw new \InvalidArgumentException(sprintf($msg,$className)); |
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} |
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} |
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/** |
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* gets all defined Association |
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* |
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* @return Association[] |
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* @throws InvalidOperationException |
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*/ |
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public function getRelations(): array |
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{ |
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if(empty($this->assocations)) { |
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$this->buildAssocations(); |
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} |
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return array_values($this->assocations); |
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} |
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/** |
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* checks if a class is loaded into the relation container |
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* |
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* @param string $className |
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* @return bool |
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*/ |
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public function hasClass(string $className): bool |
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{ |
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return array_key_exists($className, $this->entities); |
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} |
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} |
Algo-Web /
POData-Laravel
