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<?php |
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declare(strict_types=1); |
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namespace Stratadox\Hydration\Mapping\Property\Relationship; |
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use Stratadox\Hydration\Mapping\Property\MissingTheKey; |
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use Stratadox\HydrationMapping\ExposesDataKey; |
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use Stratadox\Hydrator\Hydrates; |
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use Stratadox\Proxy\ProducesProxies; |
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use Throwable; |
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/** |
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* Maps a number to a collection of proxies in an object property. |
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* |
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* @package Stratadox\Hydrate |
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* @author Stratadox |
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*/ |
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final class HasManyProxies implements ExposesDataKey |
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{ |
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private $name; |
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private $key; |
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private $collection; |
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private $proxyBuilder; |
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private function __construct( |
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string $name, |
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string $dataKey, |
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Hydrates $collectionHydrator, |
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ProducesProxies $proxyBuilder |
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) { |
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$this->name = $name; |
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$this->key = $dataKey; |
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$this->collection = $collectionHydrator; |
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$this->proxyBuilder = $proxyBuilder; |
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} |
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/** |
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* Create a new lazily loaded has-many mapping. |
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* |
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* @param string $name The name of both the key and the property. |
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* @param Hydrates $collection The hydrator for the collection. |
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* @param ProducesProxies $proxyBuilder The proxy builder. |
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* @return self The lazy has-many mapping. |
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*/ |
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public static function inProperty( |
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string $name, |
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Hydrates $collection, |
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ProducesProxies $proxyBuilder |
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): self { |
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return new self($name, $name, $collection, $proxyBuilder); |
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} |
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/** |
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* Create a new lazily loading has-many mapping, using the data from a |
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* specific key. |
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* |
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* @param string $name The name of both the key and the property. |
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* @param string $key The array key to use. |
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* @param Hydrates $collection The hydrator for the collection. |
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* @param ProducesProxies $proxyBuilder The proxy builder. |
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* @return self The lazy has-many mapping. |
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*/ |
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public static function inPropertyWithDifferentKey( |
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string $name, |
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string $key, |
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Hydrates $collection, |
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ProducesProxies $proxyBuilder |
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): self { |
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return new self($name, $key, $collection, $proxyBuilder); |
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} |
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public function name() : string |
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{ |
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return $this->name; |
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} |
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public function key() : string |
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{ |
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return $this->key; |
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} |
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public function value(array $data, $owner = null) |
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{ |
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$this->mustHaveTheKeyInThe($data); |
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$amount = $data[$this->key()]; |
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try { |
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$proxies = $this->makeSomeProxies($amount, $owner); |
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} catch (Throwable $exception) { |
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throw ProxyProductionFailed::tryingToProduceFor($this, $exception); |
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} |
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try { |
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return $this->collection->fromArray($proxies); |
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} catch (Throwable $exception) { |
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throw CollectionMappingFailed::tryingToMapCollection($this, $exception); |
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} |
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} |
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private function makeSomeProxies(int $amount, $owner): array |
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{ |
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$proxies = []; |
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for ($i = 0; $i < $amount; ++$i) { |
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$proxies[] = $this->proxyBuilder->createFor($owner, $this->name(), $i); |
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} |
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return $proxies; |
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} |
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private function mustHaveTheKeyInThe(array $data): void |
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{ |
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if (!array_key_exists($this->key(), $data)) { |
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throw MissingTheKey::inTheInput($data, $this, $this->key()); |
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} |
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} |
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} |
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Stratadox /
HydrationMapping
