OpenSocialBaseSchema.php in Open Social 10.0.x

Namespace

Drupal\social_graphql\Plugin\GraphQL\Schema

File

modules/custom/social_graphql/src/Plugin/GraphQL/Schema/OpenSocialBaseSchema.php

<?php

namespace Drupal\social_graphql\Plugin\GraphQL\Schema;

use Drupal\graphql\GraphQL\ResolverBuilder;
use Drupal\graphql\GraphQL\ResolverRegistryInterface;
use Drupal\graphql\Plugin\GraphQL\Schema\SdlSchemaPluginBase;
use Drupal\social_graphql\GraphQL\ResolverRegistry;

/**
 * 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.
 *
 * @Schema(
 *   id = "open_social",
 *   name = "Open Social 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()));
  }

}

Classes

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