431 lines
13 KiB
PHP
431 lines
13 KiB
PHP
<?php
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/**
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* REST API: WP_REST_Post_Types_Controller class
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*
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* @package WordPress
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* @subpackage REST_API
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* @since 4.7.0
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*/
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/**
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* Core class to access post types via the REST API.
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*
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* @since 4.7.0
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*
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* @see WP_REST_Controller
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*/
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class WP_REST_Post_Types_Controller extends WP_REST_Controller {
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/**
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* Constructor.
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*
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* @since 4.7.0
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*/
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public function __construct() {
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$this->namespace = 'wp/v2';
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$this->rest_base = 'types';
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}
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/**
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* Registers the routes for post types.
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*
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* @since 4.7.0
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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_permissions_check' ),
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'args' => $this->get_collection_params(),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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)
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);
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register_rest_route(
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$this->namespace,
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'/' . $this->rest_base . '/(?P<type>[\w-]+)',
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array(
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'args' => array(
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'type' => array(
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'description' => __( 'An alphanumeric identifier for the post type.' ),
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'type' => 'string',
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),
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),
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_item' ),
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'permission_callback' => '__return_true',
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'args' => array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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),
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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 whether a given request has permission to read types.
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*
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* @since 4.7.0
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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 read access, WP_Error object otherwise.
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*/
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public function get_items_permissions_check( $request ) {
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if ( 'edit' === $request['context'] ) {
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$types = get_post_types( array( 'show_in_rest' => true ), 'objects' );
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foreach ( $types as $type ) {
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if ( current_user_can( $type->cap->edit_posts ) ) {
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return true;
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}
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}
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return new WP_Error(
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'rest_cannot_view',
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__( 'Sorry, you are not allowed to edit posts in this post type.' ),
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array( 'status' => rest_authorization_required_code() )
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);
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}
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return true;
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}
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/**
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* Retrieves all public post types.
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*
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* @since 4.7.0
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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( $request ) {
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$data = array();
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$types = get_post_types( array( 'show_in_rest' => true ), 'objects' );
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foreach ( $types as $type ) {
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if ( 'edit' === $request['context'] && ! current_user_can( $type->cap->edit_posts ) ) {
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continue;
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}
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$post_type = $this->prepare_item_for_response( $type, $request );
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$data[ $type->name ] = $this->prepare_response_for_collection( $post_type );
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}
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return rest_ensure_response( $data );
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}
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/**
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* Retrieves a specific post type.
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*
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* @since 4.7.0
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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_item( $request ) {
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$obj = get_post_type_object( $request['type'] );
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if ( empty( $obj ) ) {
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return new WP_Error(
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'rest_type_invalid',
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__( 'Invalid post type.' ),
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array( 'status' => 404 )
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);
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}
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if ( empty( $obj->show_in_rest ) ) {
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return new WP_Error(
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'rest_cannot_read_type',
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__( 'Cannot view post type.' ),
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array( 'status' => rest_authorization_required_code() )
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);
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}
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if ( 'edit' === $request['context'] && ! current_user_can( $obj->cap->edit_posts ) ) {
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return new WP_Error(
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'rest_forbidden_context',
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__( 'Sorry, you are not allowed to edit posts in this post type.' ),
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array( 'status' => rest_authorization_required_code() )
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);
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}
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$data = $this->prepare_item_for_response( $obj, $request );
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return rest_ensure_response( $data );
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}
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/**
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* Prepares a post type object for serialization.
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*
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* @since 4.7.0
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* @since 5.9.0 Renamed `$post_type` to `$item` to match parent class for PHP 8 named parameter support.
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*
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* @param WP_Post_Type $item Post type object.
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* @param WP_REST_Request $request Full details about the request.
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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, $request ) {
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// Restores the more descriptive, specific name for use within this method.
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$post_type = $item;
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$taxonomies = wp_list_filter( get_object_taxonomies( $post_type->name, 'objects' ), array( 'show_in_rest' => true ) );
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$taxonomies = wp_list_pluck( $taxonomies, 'name' );
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$base = ! empty( $post_type->rest_base ) ? $post_type->rest_base : $post_type->name;
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$namespace = ! empty( $post_type->rest_namespace ) ? $post_type->rest_namespace : 'wp/v2';
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$supports = get_all_post_type_supports( $post_type->name );
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$fields = $this->get_fields_for_response( $request );
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$data = array();
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if ( rest_is_field_included( 'capabilities', $fields ) ) {
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$data['capabilities'] = $post_type->cap;
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}
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if ( rest_is_field_included( 'description', $fields ) ) {
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$data['description'] = $post_type->description;
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}
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if ( rest_is_field_included( 'hierarchical', $fields ) ) {
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$data['hierarchical'] = $post_type->hierarchical;
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}
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if ( rest_is_field_included( 'has_archive', $fields ) ) {
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$data['has_archive'] = $post_type->has_archive;
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}
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if ( rest_is_field_included( 'visibility', $fields ) ) {
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$data['visibility'] = array(
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'show_in_nav_menus' => (bool) $post_type->show_in_nav_menus,
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'show_ui' => (bool) $post_type->show_ui,
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);
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}
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if ( rest_is_field_included( 'viewable', $fields ) ) {
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$data['viewable'] = is_post_type_viewable( $post_type );
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}
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if ( rest_is_field_included( 'labels', $fields ) ) {
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$data['labels'] = $post_type->labels;
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}
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if ( rest_is_field_included( 'name', $fields ) ) {
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$data['name'] = $post_type->label;
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}
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if ( rest_is_field_included( 'slug', $fields ) ) {
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$data['slug'] = $post_type->name;
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}
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if ( rest_is_field_included( 'icon', $fields ) ) {
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$data['icon'] = $post_type->menu_icon;
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}
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if ( rest_is_field_included( 'supports', $fields ) ) {
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$data['supports'] = $supports;
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}
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if ( rest_is_field_included( 'taxonomies', $fields ) ) {
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$data['taxonomies'] = array_values( $taxonomies );
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}
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if ( rest_is_field_included( 'rest_base', $fields ) ) {
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$data['rest_base'] = $base;
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}
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if ( rest_is_field_included( 'rest_namespace', $fields ) ) {
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$data['rest_namespace'] = $namespace;
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}
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->add_additional_fields_to_object( $data, $request );
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$data = $this->filter_response_by_context( $data, $context );
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// Wrap the data in a response object.
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$response = rest_ensure_response( $data );
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if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
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$response->add_links( $this->prepare_links( $post_type ) );
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}
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/**
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* Filters a post type returned from the REST API.
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*
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* Allows modification of the post type data right before it is returned.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Response $response The response object.
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* @param WP_Post_Type $post_type The original post type object.
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* @param WP_REST_Request $request Request used to generate the response.
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*/
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return apply_filters( 'rest_prepare_post_type', $response, $post_type, $request );
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}
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/**
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* Prepares links for the request.
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*
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* @since 6.1.0
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*
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* @param WP_Post_Type $post_type The post type.
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* @return array Links for the given post type.
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*/
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protected function prepare_links( $post_type ) {
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return array(
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'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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'https://api.w.org/items' => array(
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'href' => rest_url( rest_get_route_for_post_type_items( $post_type->name ) ),
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),
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);
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}
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/**
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* Retrieves the post type's schema, conforming to JSON Schema.
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*
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* @since 4.7.0
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* @since 4.8.0 The `supports` property was added.
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* @since 5.9.0 The `visibility` and `rest_namespace` properties were added.
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* @since 6.1.0 The `icon` property was added.
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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( $this->schema );
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}
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$schema = array(
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'$schema' => 'http://json-schema.org/draft-04/schema#',
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'title' => 'type',
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'type' => 'object',
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'properties' => array(
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'capabilities' => array(
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'description' => __( 'All capabilities used by the post type.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'description' => array(
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'description' => __( 'A human-readable description of the post type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'hierarchical' => array(
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'description' => __( 'Whether or not the post type should have children.' ),
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'type' => 'boolean',
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'viewable' => array(
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'description' => __( 'Whether or not the post type can be viewed.' ),
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'type' => 'boolean',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'labels' => array(
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'description' => __( 'Human-readable labels for the post type for various contexts.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'name' => array(
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'description' => __( 'The title for the post type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'slug' => array(
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'description' => __( 'An alphanumeric identifier for the post type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'supports' => array(
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'description' => __( 'All features, supported by the post type.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'has_archive' => array(
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'description' => __( 'If the value is a string, the value will be used as the archive slug. If the value is false the post type has no archive.' ),
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'type' => array( 'string', 'boolean' ),
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'taxonomies' => array(
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'description' => __( 'Taxonomies associated with post type.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'string',
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),
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'rest_base' => array(
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'description' => __( 'REST base route for the post type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'rest_namespace' => array(
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'description' => __( 'REST route\'s namespace for the post type.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'visibility' => array(
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'description' => __( 'The visibility settings for the post type.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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'properties' => array(
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'show_ui' => array(
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'description' => __( 'Whether to generate a default UI for managing this post type.' ),
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'type' => 'boolean',
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),
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'show_in_nav_menus' => array(
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'description' => __( 'Whether to make the post type available for selection in navigation menus.' ),
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'type' => 'boolean',
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),
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),
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),
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'icon' => array(
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'description' => __( 'The icon for the post type.' ),
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'type' => array( 'string', 'null' ),
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'context' => array( 'view', 'edit', '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 collections.
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*
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* @since 4.7.0
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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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return array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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);
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}
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}
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