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<?php |
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declare(strict_types=1); |
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namespace Chubbyphp\Model\Collection; |
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use Chubbyphp\Model\ModelInterface; |
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final class LazyModelCollection implements ModelCollectionInterface |
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{ |
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/** |
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* @var \Closure; |
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*/ |
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private $resolver; |
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/** |
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* @var ModelInterface[]|array |
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*/ |
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private $initialModels; |
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/** |
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* @var ModelInterface[]|array |
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*/ |
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private $models; |
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/** |
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* @param \Closure $resolver |
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*/ |
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public function __construct(\Closure $resolver) |
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{ |
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$this->resolver = $resolver; |
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} |
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private function resolveModels() |
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{ |
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if (null === $this->resolver) { |
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return; |
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} |
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$resolver = $this->resolver; |
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$this->resolver = null; |
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$this->setModels($resolver()); |
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$this->initialModels = $this->models; |
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} |
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/** |
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* @param ModelInterface $model |
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* @return ModelCollectionInterface |
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*/ |
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public function addModel(ModelInterface $model): ModelCollectionInterface |
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{ |
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$this->resolveModels(); |
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$this->models[$model->getId()] = $model; |
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return $this; |
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} |
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/** |
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* @param ModelInterface $model |
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* @return ModelCollectionInterface |
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*/ |
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public function removeModel(ModelInterface $model): ModelCollectionInterface |
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{ |
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$this->resolveModels(); |
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if (isset($this->models[$model->getId()])) { |
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unset($this->models[$model->getId()); |
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} |
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return $this; |
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} |
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/** |
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* @param ModelInterface[]|array $models |
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* @return ModelCollectionInterface |
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*/ |
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public function setModels(array $models): ModelCollectionInterface |
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{ |
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$this->resolveModels(); |
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$this->models = []; |
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foreach ($models as $model) { |
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$this->addModel($model); |
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} |
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return $this; |
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} |
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/** |
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* @return ModelInterface[]|array |
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*/ |
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public function getModels(): array |
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{ |
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$this->resolveModels(); |
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return $this->models; |
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} |
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/** |
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* @return ModelInterface[]|array |
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*/ |
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public function getInitialModels(): array |
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{ |
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$this->resolveModels(); |
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return $this->initialModels; |
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} |
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/** |
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* @return array |
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*/ |
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public function jsonSerialize(): array |
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{ |
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$this->resolveModels(); |
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$serializedModels = []; |
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foreach ($this->models as $model) { |
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$serializedModels[] = $model->jsonSerialize(); |
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} |
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return $serializedModels; |
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} |
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} |
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