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1aca5e48e5
When various methods parameters in child classes were renamed to `$item` to match the parent class for PHP 8 named parameter support, most of the methods restored the more descriptive, specific name at the beginning for better readability, with several exceptions for methods consisting only of a few lines. To avoid confusion about why some methods do that and some don't, this commit aims to bring more consistency to the code, specifically in list tables' `::column_default()` methods. Follow-up to [51728], [51737], [51786]. See #58831. Built from https://develop.svn.wordpress.org/trunk@56586 git-svn-id: http://core.svn.wordpress.org/trunk@56098 1a063a9b-81f0-0310-95a4-ce76da25c4cd
409 lines
11 KiB
PHP
409 lines
11 KiB
PHP
<?php
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/**
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* REST API: WP_REST_Search_Controller class
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*
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* @package WordPress
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* @subpackage REST_API
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* @since 5.0.0
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*/
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/**
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* Core class to search through all WordPress content via the REST API.
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*
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* @since 5.0.0
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*
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* @see WP_REST_Controller
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*/
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class WP_REST_Search_Controller extends WP_REST_Controller {
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/**
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* ID property name.
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*/
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const PROP_ID = 'id';
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/**
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* Title property name.
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*/
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const PROP_TITLE = 'title';
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/**
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* URL property name.
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*/
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const PROP_URL = 'url';
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/**
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* Type property name.
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*/
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const PROP_TYPE = 'type';
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/**
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* Subtype property name.
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*/
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const PROP_SUBTYPE = 'subtype';
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/**
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* Identifier for the 'any' type.
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*/
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const TYPE_ANY = 'any';
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/**
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* Search handlers used by the controller.
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*
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* @since 5.0.0
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* @var WP_REST_Search_Handler[]
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*/
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protected $search_handlers = array();
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/**
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* Constructor.
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*
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* @since 5.0.0
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*
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* @param array $search_handlers List of search handlers to use in the controller. Each search
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* handler instance must extend the `WP_REST_Search_Handler` class.
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*/
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public function __construct( array $search_handlers ) {
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$this->namespace = 'wp/v2';
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$this->rest_base = 'search';
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foreach ( $search_handlers as $search_handler ) {
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if ( ! $search_handler instanceof WP_REST_Search_Handler ) {
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_doing_it_wrong(
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__METHOD__,
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/* translators: %s: PHP class name. */
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sprintf( __( 'REST search handlers must extend the %s class.' ), 'WP_REST_Search_Handler' ),
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'5.0.0'
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);
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continue;
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}
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$this->search_handlers[ $search_handler->get_type() ] = $search_handler;
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}
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}
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/**
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* Registers the routes for the search controller.
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*
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* @since 5.0.0
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*
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* @see register_rest_route()
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*/
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public function register_routes() {
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register_rest_route(
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$this->namespace,
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'/' . $this->rest_base,
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array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_items' ),
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'permission_callback' => array( $this, 'get_items_permission_check' ),
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'args' => $this->get_collection_params(),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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)
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);
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}
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/**
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* Checks if a given request has access to search content.
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*
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* @since 5.0.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has search access, WP_Error object otherwise.
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*/
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public function get_items_permission_check( $request ) {
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return true;
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}
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/**
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* Retrieves a collection of search results.
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*
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* @since 5.0.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
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*/
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public function get_items( $request ) {
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$handler = $this->get_search_handler( $request );
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if ( is_wp_error( $handler ) ) {
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return $handler;
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}
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$result = $handler->search_items( $request );
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if ( ! isset( $result[ WP_REST_Search_Handler::RESULT_IDS ] ) || ! is_array( $result[ WP_REST_Search_Handler::RESULT_IDS ] ) || ! isset( $result[ WP_REST_Search_Handler::RESULT_TOTAL ] ) ) {
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return new WP_Error(
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'rest_search_handler_error',
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__( 'Internal search handler error.' ),
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array( 'status' => 500 )
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);
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}
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$ids = $result[ WP_REST_Search_Handler::RESULT_IDS ];
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$results = array();
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foreach ( $ids as $id ) {
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$data = $this->prepare_item_for_response( $id, $request );
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$results[] = $this->prepare_response_for_collection( $data );
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}
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$total = (int) $result[ WP_REST_Search_Handler::RESULT_TOTAL ];
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$page = (int) $request['page'];
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$per_page = (int) $request['per_page'];
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$max_pages = ceil( $total / $per_page );
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if ( $page > $max_pages && $total > 0 ) {
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return new WP_Error(
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'rest_search_invalid_page_number',
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__( 'The page number requested is larger than the number of pages available.' ),
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array( 'status' => 400 )
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);
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}
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$response = rest_ensure_response( $results );
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$response->header( 'X-WP-Total', $total );
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$response->header( 'X-WP-TotalPages', $max_pages );
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$request_params = $request->get_query_params();
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$base = add_query_arg( urlencode_deep( $request_params ), rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ) );
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if ( $page > 1 ) {
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$prev_link = add_query_arg( 'page', $page - 1, $base );
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$response->link_header( 'prev', $prev_link );
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}
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if ( $page < $max_pages ) {
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$next_link = add_query_arg( 'page', $page + 1, $base );
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$response->link_header( 'next', $next_link );
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}
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return $response;
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}
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/**
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* Prepares a single search result for response.
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*
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* @since 5.0.0
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* @since 5.6.0 The `$id` parameter can accept a string.
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* @since 5.9.0 Renamed `$id` to `$item` to match parent class for PHP 8 named parameter support.
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*
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* @param int|string $item ID of the item to prepare.
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* @param WP_REST_Request $request Request object.
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* @return WP_REST_Response Response object.
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*/
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public function prepare_item_for_response( $item, $request ) {
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// Restores the more descriptive, specific name for use within this method.
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$item_id = $item;
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$handler = $this->get_search_handler( $request );
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if ( is_wp_error( $handler ) ) {
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return new WP_REST_Response();
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}
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$fields = $this->get_fields_for_response( $request );
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$data = $handler->prepare_item( $item_id, $fields );
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$data = $this->add_additional_fields_to_object( $data, $request );
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->filter_response_by_context( $data, $context );
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$response = rest_ensure_response( $data );
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if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
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$links = $handler->prepare_item_links( $item_id );
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$links['collection'] = array(
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'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
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);
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$response->add_links( $links );
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}
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return $response;
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}
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/**
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* Retrieves the item schema, conforming to JSON Schema.
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*
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* @since 5.0.0
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*
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* @return array Item schema data.
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*/
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public function get_item_schema() {
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if ( $this->schema ) {
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return $this->add_additional_fields_schema( $this->schema );
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}
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$types = array();
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$subtypes = array();
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foreach ( $this->search_handlers as $search_handler ) {
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$types[] = $search_handler->get_type();
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$subtypes = array_merge( $subtypes, $search_handler->get_subtypes() );
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}
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$types = array_unique( $types );
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$subtypes = array_unique( $subtypes );
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$schema = array(
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'$schema' => 'http://json-schema.org/draft-04/schema#',
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'title' => 'search-result',
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'type' => 'object',
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'properties' => array(
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self::PROP_ID => array(
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'description' => __( 'Unique identifier for the object.' ),
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'type' => array( 'integer', 'string' ),
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'context' => array( 'view', 'embed' ),
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'readonly' => true,
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),
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self::PROP_TITLE => array(
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'description' => __( 'The title for the object.' ),
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'type' => 'string',
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'context' => array( 'view', 'embed' ),
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'readonly' => true,
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),
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self::PROP_URL => array(
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'description' => __( 'URL to the object.' ),
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'type' => 'string',
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'format' => 'uri',
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'context' => array( 'view', 'embed' ),
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'readonly' => true,
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),
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self::PROP_TYPE => array(
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'description' => __( 'Object type.' ),
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'type' => 'string',
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'enum' => $types,
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'context' => array( 'view', 'embed' ),
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'readonly' => true,
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),
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self::PROP_SUBTYPE => array(
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'description' => __( 'Object subtype.' ),
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'type' => 'string',
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'enum' => $subtypes,
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'context' => array( 'view', 'embed' ),
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'readonly' => true,
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),
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),
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);
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$this->schema = $schema;
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return $this->add_additional_fields_schema( $this->schema );
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}
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/**
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* Retrieves the query params for the search results collection.
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*
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* @since 5.0.0
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*
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* @return array Collection parameters.
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*/
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public function get_collection_params() {
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$types = array();
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$subtypes = array();
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foreach ( $this->search_handlers as $search_handler ) {
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$types[] = $search_handler->get_type();
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$subtypes = array_merge( $subtypes, $search_handler->get_subtypes() );
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}
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$types = array_unique( $types );
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$subtypes = array_unique( $subtypes );
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$query_params = parent::get_collection_params();
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$query_params['context']['default'] = 'view';
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$query_params[ self::PROP_TYPE ] = array(
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'default' => $types[0],
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'description' => __( 'Limit results to items of an object type.' ),
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'type' => 'string',
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'enum' => $types,
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);
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$query_params[ self::PROP_SUBTYPE ] = array(
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'default' => self::TYPE_ANY,
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'description' => __( 'Limit results to items of one or more object subtypes.' ),
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'type' => 'array',
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'items' => array(
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'enum' => array_merge( $subtypes, array( self::TYPE_ANY ) ),
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'type' => 'string',
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),
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'sanitize_callback' => array( $this, 'sanitize_subtypes' ),
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);
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$query_params['exclude'] = array(
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'description' => __( 'Ensure result set excludes specific IDs.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'integer',
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),
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'default' => array(),
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);
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$query_params['include'] = array(
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'description' => __( 'Limit result set to specific IDs.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'integer',
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),
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'default' => array(),
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);
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return $query_params;
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}
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/**
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* Sanitizes the list of subtypes, to ensure only subtypes of the passed type are included.
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*
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* @since 5.0.0
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*
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* @param string|array $subtypes One or more subtypes.
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* @param WP_REST_Request $request Full details about the request.
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* @param string $parameter Parameter name.
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* @return string[]|WP_Error List of valid subtypes, or WP_Error object on failure.
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*/
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public function sanitize_subtypes( $subtypes, $request, $parameter ) {
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$subtypes = wp_parse_slug_list( $subtypes );
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$subtypes = rest_parse_request_arg( $subtypes, $request, $parameter );
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if ( is_wp_error( $subtypes ) ) {
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return $subtypes;
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}
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// 'any' overrides any other subtype.
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if ( in_array( self::TYPE_ANY, $subtypes, true ) ) {
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return array( self::TYPE_ANY );
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}
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$handler = $this->get_search_handler( $request );
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if ( is_wp_error( $handler ) ) {
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return $handler;
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}
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return array_intersect( $subtypes, $handler->get_subtypes() );
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}
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/**
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* Gets the search handler to handle the current request.
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*
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* @since 5.0.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Search_Handler|WP_Error Search handler for the request type, or WP_Error object on failure.
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*/
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protected function get_search_handler( $request ) {
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$type = $request->get_param( self::PROP_TYPE );
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if ( ! $type || ! isset( $this->search_handlers[ $type ] ) ) {
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return new WP_Error(
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'rest_search_invalid_type',
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__( 'Invalid type parameter.' ),
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array( 'status' => 400 )
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);
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}
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return $this->search_handlers[ $type ];
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}
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}
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