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<?php |
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namespace Digia\GraphQL\Type\Definition; |
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use Digia\GraphQL\Error\InvariantException; |
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use Digia\GraphQL\Language\Node\ASTNodeAwareInterface; |
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use Digia\GraphQL\Language\Node\ASTNodeTrait; |
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use Digia\GraphQL\Language\Node\InputObjectTypeDefinitionNode; |
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use function Digia\GraphQL\Type\isAssocArray; |
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use function Digia\GraphQL\Type\resolveThunk; |
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use function Digia\GraphQL\Util\invariant; |
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/** |
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* Input Object Type Definition |
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* |
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* An input object defines a structured collection of fields which may be |
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* supplied to a field argument. |
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* |
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* Using `NonNull` will ensure that a value must be provided by the query |
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* |
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* Example: |
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* |
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* $GeoPoint = newInputObjectType([ |
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* 'name': 'GeoPoint', |
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* 'fields': [ |
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* 'lat': ['type' => newNonNull(Float())], |
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* 'lon': ['type' => newNonNull(Float())], |
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* 'alt': ['type' => Float(), 'defaultValue' => 0], |
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* ] |
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* ]); |
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*/ |
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class InputObjectType implements TypeInterface, NamedTypeInterface, InputTypeInterface, ASTNodeAwareInterface |
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{ |
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use NameTrait; |
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use DescriptionTrait; |
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use ASTNodeTrait; |
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/** |
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* Fields can be defined either as an array or as a thunk. |
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* Using thunks allows for cross-referencing of fields. |
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* |
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* @var array|callable |
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*/ |
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protected $fieldsOrThunk; |
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/** |
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* A key-value map over field names and their corresponding field instances. |
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* |
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* @var null|InputField[] |
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*/ |
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protected $fieldMap; |
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/** |
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* InputObjectType constructor. |
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* |
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* @param string $name |
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* @param null|string $description |
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* @param array|callable $fieldsOrThunk |
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* @param InputObjectTypeDefinitionNode|null $astNode |
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* @throws InvariantException |
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*/ |
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public function __construct( |
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string $name, |
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?string $description, |
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$fieldsOrThunk, |
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?InputObjectTypeDefinitionNode $astNode |
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) { |
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$this->name = $name; |
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$this->description = $description; |
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$this->fieldsOrThunk = $fieldsOrThunk; |
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$this->astNode = $astNode; |
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invariant(null !== $this->getName(), 'Must provide name.'); |
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} |
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/** |
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* @return InputField[] |
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* @throws InvariantException |
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*/ |
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public function getFields(): array |
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{ |
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if (!isset($this->fieldMap)) { |
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$this->fieldMap = $this->buildFieldMap($this->fieldsOrThunk); |
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} |
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return $this->fieldMap; |
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} |
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/** |
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* @param array|callable $fieldsOrThunk |
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* @return array |
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* @throws InvariantException |
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*/ |
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protected function buildFieldMap($fieldsOrThunk): array |
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{ |
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$fields = resolveThunk($fieldsOrThunk); |
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invariant( |
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isAssocArray($fields), |
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\sprintf( |
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'%s fields must be an associative array with field names as keys or a function which returns such an array.', |
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$this->name |
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) |
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); |
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$fieldMap = []; |
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foreach ($fields as $fieldName => $fieldConfig) { |
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invariant( |
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!isset($fieldConfig['resolve']), |
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\sprintf( |
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'%s.%s field type has a resolve property, but Input Types cannot define resolvers.', |
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$this->name, |
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$fieldName |
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) |
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); |
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$fieldMap[$fieldName] = new InputField( |
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$fieldName, |
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$fieldConfig['type'] ?? null, |
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$fieldConfig['defaultValue'] ?? null, |
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$fieldConfig['description'] ?? null, |
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$fieldConfig['astNode'] ?? null |
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); |
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} |
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return $fieldMap; |
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} |
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} |
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digiaonline /
graphql-php
