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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 Closure; |
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use GraphQL\Type\Definition\ResolveInfo; |
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use function is_array; |
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use function is_callable; |
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use function is_object; |
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use function str_replace; |
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class FieldResolver |
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{ |
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/** |
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* @param mixed $parentValue |
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* @param mixed $args |
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* @param mixed $context |
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* |
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* @return mixed|null |
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*/ |
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public function __invoke($parentValue, $args, $context, ResolveInfo $info) |
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{ |
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$fieldName = $info->fieldName; |
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$value = static::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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/** |
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* @param object|array $objectOrArray |
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* |
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* @return mixed|null |
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*/ |
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public static function valueFromObjectOrArray($objectOrArray, string $fieldName) |
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{ |
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if (is_array($objectOrArray) && isset($objectOrArray[$fieldName])) { |
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return $objectOrArray[$fieldName]; |
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} |
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if (is_object($objectOrArray)) { |
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if (null !== $getter = static::checkGetterExists($objectOrArray, $fieldName, 'get')) { |
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return $objectOrArray->$getter(); |
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} |
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1 |
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if (null !== $getter = static::checkGetterExists($objectOrArray, $fieldName, 'is')) { |
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return $objectOrArray->$getter(); |
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} |
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if (null !== $getter = static::checkGetterExists($objectOrArray, $fieldName, 'has')) { |
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return $objectOrArray->$getter(); |
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} |
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if (null !== $getter = static::checkGetterExists($objectOrArray, $fieldName)) { |
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return $objectOrArray->$getter(); |
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} |
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if (isset($objectOrArray->$fieldName)) { |
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return $objectOrArray->$fieldName; |
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} |
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} |
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5 |
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return null; |
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} |
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private static function checkGetterExists(object $object, string $fieldName, string $prefix = ''): ?string |
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{ |
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if (is_callable([$object, $method = $prefix.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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* @deprecated deprecated since version 1.0. Use `checkGetterExists` instead. |
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*/ |
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private static function guessObjectMethod(object $object, string $fieldName, string $prefix): ?string |
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{ |
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return static::checkGetterExists($object, $fieldName, $prefix); |
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} |
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} |
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overblog /
GraphQLBundle
