WordPress at a glance
class is not described

WP_REST_Search_Handler{} WP 5.0.0

Core base class representing a search handler for an object type in the REST API.

No Hooks.

Return

Nothing (null).

Usage

$WP_REST_Search_Handler = new WP_REST_Search_Handler();
// use class methods

Methods

  1. get_type()
  2. get_subtypes()
  3. search_items( WP_REST_Request $request )
  4. prepare_item( $id, array $fields )
  5. prepare_item_links( $id )

Code of WP REST Search Handler: wp-includes/rest-api/search/class-wp-rest-search-handler.php WP 5.2.1

<?php
abstract class WP_REST_Search_Handler {

	/**
	 * Field containing the IDs in the search result.
	 */
	const RESULT_IDS = 'ids';

	/**
	 * Field containing the total count in the search result.
	 */
	const RESULT_TOTAL = 'total';

	/**
	 * Object type managed by this search handler.
	 *
	 * @since 5.0.0
	 * @var string
	 */
	protected $type = '';

	/**
	 * Object subtypes managed by this search handler.
	 *
	 * @since 5.0.0
	 * @var array
	 */
	protected $subtypes = array();

	/**
	 * Gets the object type managed by this search handler.
	 *
	 * @since 5.0.0
	 *
	 * @return string Object type identifier.
	 */
	public function get_type() {
		return $this->type;
	}

	/**
	 * Gets the object subtypes managed by this search handler.
	 *
	 * @since 5.0.0
	 *
	 * @return array Array of object subtype identifiers.
	 */
	public function get_subtypes() {
		return $this->subtypes;
	}

	/**
	 * Searches the object type content for a given search request.
	 *
	 * @since 5.0.0
	 *
	 * @param WP_REST_Request $request Full REST request.
	 * @return array Associative array containing an `WP_REST_Search_Handler::RESULT_IDS` containing
	 *               an array of found IDs and `WP_REST_Search_Handler::RESULT_TOTAL` containing the
	 *               total count for the matching search results.
	 */
	abstract public function search_items( WP_REST_Request $request );

	/**
	 * Prepares the search result for a given ID.
	 *
	 * @since 5.0.0
	 *
	 * @param int   $id     Item ID.
	 * @param array $fields Fields to include for the item.
	 * @return array Associative array containing all fields for the item.
	 */
	abstract public function prepare_item( $id, array $fields );

	/**
	 * Prepares links for the search result of a given ID.
	 *
	 * @since 5.0.0
	 *
	 * @param int $id Item ID.
	 * @return array Links for the given item.
	 */
	abstract public function prepare_item_links( $id );
}