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<?php |
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namespace Digia\GraphQL\Schema\Resolver; |
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class ResolverCollection implements ResolverInterface |
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{ |
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protected const TYPE_RESOLVER_KEY = '__resolveType'; |
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/** |
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* @var callable[] |
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*/ |
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protected $resolvers; |
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/** |
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* MapResolver constructor. |
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* @param callable[] $resolvers |
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*/ |
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public function __construct(array $resolvers) |
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{ |
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$this->registerResolvers($resolvers); |
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} |
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/** |
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* @param string $fieldName |
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* @param callable $resolver |
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*/ |
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public function addResolver(string $fieldName, callable $resolver) |
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{ |
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$this->resolvers[$fieldName] = $resolver; |
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} |
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/** |
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* @param string $fieldName |
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* @return callable|null |
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*/ |
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public function getResolver(string $fieldName): ?callable |
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{ |
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return $this->resolvers[$fieldName] ?? null; |
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} |
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/** |
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* @return callable|null |
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*/ |
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public function getResolveCallback(): ?callable |
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{ |
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return function ($fieldName) { |
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$resolver = $this->getResolver($fieldName); |
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if ($resolver instanceof ResolverInterface) { |
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return $resolver->getResolveCallback(); |
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} |
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if ($resolver instanceof \Closure) { |
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return $resolver; |
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} |
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return null; |
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}; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getTypeResolver(): ?callable |
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{ |
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return $this->resolvers[static::TYPE_RESOLVER_KEY] ?? null; |
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} |
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/** |
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* @param array $resolvers |
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*/ |
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protected function registerResolvers(array $resolvers): void |
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{ |
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foreach ($resolvers as $typeName => $resolver) { |
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if (\is_array($resolver)) { |
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$resolver = new ResolverCollection($resolver); |
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} |
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$this->addResolver($typeName, $resolver); |
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} |
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} |
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} |
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digiaonline /
graphql-php
