interface ConnectionQueryHelperInterface in Open Social 10.0.x

Provides an interface for a connection query helper.

A connection query helper provides an EntityConnection implementation with the data that it needs to fetch data on the connection in a specific configuration.

Hierarchy

• interface \Drupal\social_graphql\GraphQL\ConnectionQueryHelperInterface

File

modules/custom/social_graphql/src/GraphQL/ConnectionQueryHelperInterface.php, line 16

Namespace

Drupal\social_graphql\GraphQL

interface ConnectionQueryHelperInterface {

  /**
   * Get the query that's at the root of this connection.
   *
   * This is a good place to apply any filtering that has been provided by the
   * client.
   *
   * @return \Drupal\Core\Entity\Query\QueryInterface
   *   An entity query or aggregate entity query.
   */
  public function getQuery() : QueryInterface;

  /**
   * Returns a cursor object for a given cursor string.
   *
   * @param string $cursor
   *   A cursor string created obtained from an edge for the connection.
   *
   * @return \Drupal\social_graphql\Wrappers\Cursor|null
   *   An object with the cursor information or null if it was an invalid
   *   cursor.
   */
  public function getCursorObject(string $cursor) : ?Cursor;

  /**
   * Returns the name of the ID field of this query.
   *
   * The ID field is used as fallback in case entities have the same value for
   * the sort field. This ensures a stable sort in all cases.
   *
   * @return string
   *   The query field name to use as ID.
   */
  public function getIdField() : string;

  /**
   * Returns the name of the field to use for sorting this connection.
   *
   * The cursor value will be used with this field.
   *
   * @return string
   *   The sort field name.
   */
  public function getSortField() : string;

  /**
   * The function to use for aggregate sorting.
   *
   * @return string|null
   *   The aggregate sort function or NULL if aggregate sorting shouldn't be
   *   used.
   *
   * @see \Drupal\Core\Entity\Query\QueryAggregateInterface::sortAggregate
   *
   * @todo Move this to a separate interface.
   */
  public function getAggregateSortFunction() : ?string;

  /**
   * Asynchronously turn the entity query result into edges.
   *
   * This can be used to process the results from the entity query and load them
   * using something like the GraphQL Entity Buffer. Transformative work should
   * be moved into the promise as much as possible.
   *
   * @param array $result
   *   The result of the entity query as started in getQuery.
   *
   * @return \GraphQL\Executor\Promise\Adapter\SyncPromise
   *   A promise that resolves into the edges for this connection.
   */
  public function getLoaderPromise(array $result) : SyncPromise;

}

Members

Name	Modifiers	Type	Description	Overrides
ConnectionQueryHelperInterface::getAggregateSortFunction	public	function	The function to use for aggregate sorting.
ConnectionQueryHelperInterface::getCursorObject	public	function	Returns a cursor object for a given cursor string.
ConnectionQueryHelperInterface::getIdField	public	function	Returns the name of the ID field of this query.
ConnectionQueryHelperInterface::getLoaderPromise	public	function	Asynchronously turn the entity query result into edges.
ConnectionQueryHelperInterface::getQuery	public	function	Get the query that's at the root of this connection.
ConnectionQueryHelperInterface::getSortField	public	function	Returns the name of the field to use for sorting this connection.