class OpenSocialBaseSchema in Open Social 10.1.x

The provider of the schema base for the Open Social GraphQL API.

Provides a target schema for GraphQL Schema extensions. Schema Extensions should implement `SdlSchemaExtensionPluginBase` and should not subclass this class.

This class implements the resolver mapping for common data types and interfaces. It uses a modified resolver registry that allows falling back to an interface's field mapping reducing duplication for common object types (such as Connections and Edges).

This class borrows from the ComposableSchema example but intentionally does not implement the extension configuration that that schema provides. Instead the SdlSchemaPluginBase loads the schema extensions for all Open Social features that are enabled.

Plugin annotation

@Schema(
  id = "open_social",
  name = "Open Social GraphQL Schema"
)

Hierarchy

• class \Drupal\social_graphql\Plugin\GraphQL\Schema\OpenSocialBaseSchema extends \Drupal\graphql\Plugin\GraphQL\Schema\SdlSchemaPluginBase

File

modules/custom/social_graphql/src/Plugin/GraphQL/Schema/OpenSocialBaseSchema.php, line 32

Namespace

Drupal\social_graphql\Plugin\GraphQL\Schema

class OpenSocialBaseSchema extends SdlSchemaPluginBase {

  /**
   * {@inheritdoc}
   */
  public function getResolverRegistry() {
    return new ResolverRegistry();
  }

  /**
   * {@inheritdoc}
   */
  public function getSchema(ResolverRegistryInterface $registry) {

    // Add Open Social base types to the schema.
    $this
      ->getBaseSchema($registry);

    // Instantiate the schema and add all extensions.
    return parent::getSchema($registry);
  }

  /**
   * Provides a base schema for Open Social.
   *
   * This ensures that other modules have common types available to them to
   * build on.
   *
   * @param \Drupal\graphql\GraphQL\ResolverRegistryInterface $registry
   *   The resolver registry.
   */
  protected function getBaseSchema(ResolverRegistryInterface $registry) {
    $builder = new ResolverBuilder();

    // TextFormat fields.
    $registry
      ->addFieldResolver('TextFormat', 'name', $builder
      ->fromParent());

    // FormattedText fields.
    $registry
      ->addFieldResolver('FormattedText', 'format', $builder
      ->fromPath('text', 'format'));
    $registry
      ->addFieldResolver('FormattedText', 'raw', $builder
      ->fromPath('text', 'value'));

    // @todo https://www.drupal.org/project/social/issues/3191613
    $registry
      ->addFieldResolver('FormattedText', 'processed', $builder
      ->fromPath('text', 'processed'));

    // DateTime fields.
    // @todo https://www.drupal.org/project/social/issues/3191615
    $registry
      ->addFieldResolver('DateTime', 'timestamp', $builder
      ->fromParent());

    // Media fields.
    // @todo https://www.drupal.org/project/social/issues/3191617
    $registry
      ->addFieldResolver('Media', 'id', $builder
      ->produce('media_bridge')
      ->map('value', $builder
      ->fromParent())
      ->map('field', $builder
      ->fromValue('id')));
    $registry
      ->addFieldResolver('Media', 'url', $builder
      ->produce('media_bridge')
      ->map('value', $builder
      ->fromParent())
      ->map('field', $builder
      ->fromValue('url')));

    // Image fields.
    $registry
      ->addFieldResolver('Image', 'title', $builder
      ->produce('media_bridge')
      ->map('value', $builder
      ->fromParent())
      ->map('field', $builder
      ->fromValue('title')));
    $registry
      ->addFieldResolver('Image', 'alt', $builder
      ->produce('media_bridge')
      ->map('value', $builder
      ->fromParent())
      ->map('field', $builder
      ->fromValue('alt')));

    // Connection fields.
    $registry
      ->addFieldResolver('Connection', 'edges', $builder
      ->produce('connection_edges')
      ->map('connection', $builder
      ->fromParent()));
    $registry
      ->addFieldResolver('Connection', 'nodes', $builder
      ->produce('connection_nodes')
      ->map('connection', $builder
      ->fromParent()));
    $registry
      ->addFieldResolver('Connection', 'pageInfo', $builder
      ->produce('connection_page_info')
      ->map('connection', $builder
      ->fromParent()));

    // Edge fields.
    $registry
      ->addFieldResolver('Edge', 'cursor', $builder
      ->produce('edge_cursor')
      ->map('edge', $builder
      ->fromParent()));
    $registry
      ->addFieldResolver('Edge', 'node', $builder
      ->produce('edge_node')
      ->map('edge', $builder
      ->fromParent()));
  }

}

Members

Name	Modifiers	Type	Description	Overrides
OpenSocialBaseSchema::getBaseSchema	protected	function	Provides a base schema for Open Social.
OpenSocialBaseSchema::getResolverRegistry	public	function
OpenSocialBaseSchema::getSchema	public	function