<?php
/**
* REST API: WP_REST_Term_Search_Handler class
*
* @package WordPress
* @subpackage REST_API
* @since 5.6.0
*/
/**
* Core class representing a search handler for terms in the REST API.
*
* @since 5.6.0
*
* @see WP_REST_Search_Handler
*/
class WP_REST_Term_Search_Handler extends WP_REST_Search_Handler {
/**
* Constructor.
*
* @since 5.6.0
*/
public function __construct() {
$this->type = 'term';
$this->subtypes = array_values(
get_taxonomies(
array(
'public' => true,
'show_in_rest' => true,
),
'names'
)
);
}
/**
* Searches the object type content for a given search request.
*
* @since 5.6.0
*
* @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.
*/
public function search_items( WP_REST_Request $request ) {
$taxonomies = $request[ WP_REST_Search_Controller::PROP_SUBTYPE ];
if ( in_array( WP_REST_Search_Controller::TYPE_ANY, $taxonomies, true ) ) {
$taxonomies = $this->subtypes;
}
$page = (int) $request['page'];
$per_page = (int) $request['per_page'];
$query_args = array(
'taxonomy' => $taxonomies,
'hide_empty' => false,
'offset' => ( $page - 1 ) * $per_page,
'number' => $per_page,
);
if ( ! empty( $request['search'] ) ) {
$query_args['search'] = $request['search'];
}
/**
* Filters the query arguments for a REST API search request.
*
* Enables adding extra arguments or setting defaults for a term search request.
*
* @since 5.6.0
*
* @param array $query_args Key value array of query var to query value.
* @param WP_REST_Request $request The request used.
*/
$query_args = apply_filters( 'rest_term_search_query', $query_args, $request );
$query = new WP_Term_Query();
$found_terms = $query->query( $query_args );
$found_ids = wp_list_pluck( $found_terms, 'term_id' );
unset( $query_args['offset'], $query_args['number'] );
$total = wp_count_terms( $query_args );
// wp_count_terms() can return a falsey value when the term has no children.
if ( ! $total ) {
$total = 0;
}
return array(
self::RESULT_IDS => $found_ids,
self::RESULT_TOTAL => $total,
);
}
/**
* Prepares the search result for a given ID.
*
* @since 5.6.0
*
* @param int $id Item ID.
* @param array $fields Fields to include for the item.
* @return array Associative array containing all fields for the item.
*/
public function prepare_item( $id, array $fields ) {
$term = get_term( $id );
$data = array();
if ( in_array( WP_REST_Search_Controller::PROP_ID, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_ID ] = (int) $id;
}
if ( in_array( WP_REST_Search_Controller::PROP_TITLE, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_TITLE ] = $term->name;
}
if ( in_array( WP_REST_Search_Controller::PROP_URL, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_URL ] = get_term_link( $id );
}
if ( in_array( WP_REST_Search_Controller::PROP_TYPE, $fields, true ) ) {
$data[ WP_REST_Search_Controller::PROP_TYPE ] = $term->taxonomy;
}
return $data;
}
/**
* Prepares links for the search result of a given ID.
*
* @since 5.6.0
*
* @param int $id Item ID.
* @return array Links for the given item.
*/
public function prepare_item_links( $id ) {
$term = get_term( $id );
$links = array();
$item_route = rest_get_route_for_term( $term );
if ( $item_route ) {
$links['self'] = array(
'href' => rest_url( $item_route ),
'embeddable' => true,
);
}
$links['about'] = array(
'href' => rest_url( sprintf( 'wp/v2/taxonomies/%s', $term->taxonomy ) ),
);
return $links;
}
}