class ExampleSchemaExtension in GraphQL 8.4

Plugin annotation

@SchemaExtension(
  id = "example_extension",
  name = "Example extension",
  description = "A simple extension that adds node related fields.",
  schema = "example"
)

Hierarchy

• class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
  • class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
    • class \Drupal\graphql\Plugin\GraphQL\SchemaExtension\SdlSchemaExtensionPluginBase implements ContainerFactoryPluginInterface, SchemaExtensionPluginInterface
      • class \Drupal\graphql_examples\Plugin\GraphQL\SchemaExtension\ExampleSchemaExtension

File

examples/graphql_example/src/Plugin/GraphQL/SchemaExtension/ExampleSchemaExtension.php, line 17

Namespace

Drupal\graphql_examples\Plugin\GraphQL\SchemaExtension

class ExampleSchemaExtension extends SdlSchemaExtensionPluginBase {

  /**
   * {@inheritdoc}
   */
  public function registerResolvers(ResolverRegistryInterface $registry) : void {
    $builder = new ResolverBuilder();
    $this
      ->addQueryFields($registry, $builder);
    $this
      ->addPageFields($registry, $builder);
  }

  /**
   * @param \Drupal\graphql\GraphQL\ResolverRegistryInterface $registry
   * @param \Drupal\graphql\GraphQL\ResolverBuilder $builder
   */
  protected function addPageFields(ResolverRegistryInterface $registry, ResolverBuilder $builder) : void {
    $registry
      ->addFieldResolver('Page', 'id', $builder
      ->produce('entity_id')
      ->map('entity', $builder
      ->fromParent()));
    $registry
      ->addFieldResolver('Page', 'title', $builder
      ->compose($builder
      ->produce('entity_label')
      ->map('entity', $builder
      ->fromParent()), $builder
      ->produce('uppercase')
      ->map('string', $builder
      ->fromParent())));
  }

  /**
   * @param \Drupal\graphql\GraphQL\ResolverRegistryInterface $registry
   * @param \Drupal\graphql\GraphQL\ResolverBuilder $builder
   */
  protected function addQueryFields(ResolverRegistryInterface $registry, ResolverBuilder $builder) : void {
    $registry
      ->addFieldResolver('Query', 'page', $builder
      ->produce('entity_load')
      ->map('type', $builder
      ->fromValue('node'))
      ->map('bundles', $builder
      ->fromValue([
      'page',
    ]))
      ->map('id', $builder
      ->fromArgument('id')));
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
ExampleSchemaExtension::addPageFields	protected	function
ExampleSchemaExtension::addQueryFields	protected	function
ExampleSchemaExtension::registerResolvers	public	function	Registers type and field resolvers in the shared registry. Overrides SchemaExtensionPluginInterface::registerResolvers
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
PluginBase::$configuration	protected	property	Configuration information passed into the plugin.	1
PluginBase::$pluginDefinition	protected	property	The plugin implementation definition.	1
PluginBase::$pluginId	protected	property	The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR		constant	A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId	public	function	Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId	public	function	Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition	public	function	Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition	3
PluginBase::getPluginId	public	function	Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable	public	function	Determines if the plugin is configurable.
SdlSchemaExtensionPluginBase::$moduleHandler	protected	property	The module handler service.
SdlSchemaExtensionPluginBase::create	public static	function	@codeCoverageIgnore Overrides ContainerFactoryPluginInterface::create
SdlSchemaExtensionPluginBase::getBaseDefinition	public	function	Overrides SchemaExtensionPluginInterface::getBaseDefinition
SdlSchemaExtensionPluginBase::getExtensionDefinition	public	function	Overrides SchemaExtensionPluginInterface::getExtensionDefinition
SdlSchemaExtensionPluginBase::loadDefinitionFile	protected	function	Loads a schema definition file.
SdlSchemaExtensionPluginBase::__construct	public	function	SdlSchemaExtensionPluginBase constructor. Overrides PluginBase::__construct
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.