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<?php |
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declare(strict_types=1); |
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namespace Chubbyphp\Model\Reference; |
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use Chubbyphp\Model\ModelInterface; |
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use Chubbyphp\Model\ResolverInterface; |
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final class LazyModelReference implements ModelReferenceInterface |
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{ |
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/** |
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* @var ResolverInterface |
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*/ |
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private $resolver; |
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/** |
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* @var string |
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*/ |
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private $modelClass; |
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/** |
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* @var string|null |
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*/ |
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private $id; |
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/** |
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* @var bool |
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*/ |
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private $resolved = false; |
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/** |
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* @var ModelInterface|null |
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*/ |
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private $initialModel; |
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/** |
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* @var ModelInterface|null |
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*/ |
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private $model; |
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/** |
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* @param ResolverInterface $resolver |
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* @param string $modelClass |
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* @param string|null $id |
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*/ |
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public function __construct(ResolverInterface $resolver, string $modelClass, string $id = null) |
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{ |
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$this->resolver = $resolver; |
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$this->modelClass = $modelClass; |
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$this->id = $id; |
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} |
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private function resolveModel() |
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{ |
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if ($this->resolved) { |
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return; |
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} |
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$this->resolved = true; |
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$this->initialModel = $this->resolver->find($this->modelClass, $this->id); |
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$this->model = $this->initialModel; |
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} |
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/** |
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* @param ModelInterface|null $model |
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* |
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* @return ModelReferenceInterface |
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*/ |
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View Code Duplication |
public function setModel(ModelInterface $model = null): ModelReferenceInterface |
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{ |
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$this->resolveModel(); |
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$this->model = $model; |
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$this->id = null !== $model ? $model->getId() : null; |
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return $this; |
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} |
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/** |
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* @return ModelInterface|null |
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*/ |
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public function getModel() |
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{ |
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$this->resolveModel(); |
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return $this->model; |
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} |
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/** |
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* @return null|string |
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*/ |
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public function getId() |
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{ |
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return $this->id; |
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} |
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/** |
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* @return ModelInterface|null |
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*/ |
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public function getInitialModel() |
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{ |
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$this->resolveModel(); |
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return $this->initialModel; |
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} |
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/** |
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* @return array|null |
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*/ |
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public function jsonSerialize() |
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{ |
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$this->resolveModel(); |
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if (null === $this->model) { |
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return null; |
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} |
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$this->jsonSerializableOrException(); |
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return $this->model->jsonSerialize(); |
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} |
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/** |
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* @throws \LogicException |
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*/ |
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View Code Duplication |
private function jsonSerializableOrException() |
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{ |
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if (!$this->model instanceof \JsonSerializable) { |
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throw new \LogicException( |
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sprintf('Model %s does not implement %s', get_class($this->model), \JsonSerializable::class) |
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); |
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} |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.