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<?php |
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declare(strict_types=1); |
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namespace Overblog\GraphQLBundle\Resolver; |
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use GraphQL\Type\Definition\ResolveInfo; |
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class FieldResolver |
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{ |
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public function __invoke($parentValue, $args, $context, ResolveInfo $info) |
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{ |
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$fieldName = $info->fieldName; |
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$value = self::valueFromObjectOrArray($parentValue, $fieldName); |
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return $value instanceof \Closure ? $value($parentValue, $args, $context, $info) : $value; |
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} |
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public static function valueFromObjectOrArray($objectOrArray, $fieldName) |
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{ |
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$value = null; |
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if (\is_array($objectOrArray) && isset($objectOrArray[$fieldName])) { |
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$value = $objectOrArray[$fieldName]; |
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} elseif (\is_object($objectOrArray)) { |
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if (null !== $getter = self::guessObjectMethod($objectOrArray, $fieldName, 'get')) { |
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$value = $objectOrArray->$getter(); |
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} elseif (null !== $getter = self::guessObjectMethod($objectOrArray, $fieldName, '')) { |
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$value = $objectOrArray->$getter(); |
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} elseif (isset($objectOrArray->$fieldName)) { |
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$value = $objectOrArray->$fieldName; |
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} |
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} |
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return $value; |
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} |
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private static function guessObjectMethod($object, string $fieldName, string $prefix): ?string |
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{ |
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if (\is_callable([$object, $method = $prefix.\str_replace(' ', '', \ucwords(\str_replace('_', ' ', $fieldName)))])) { |
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return $method; |
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} |
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return null; |
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} |
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} |
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overblog /
GraphQLBundle
