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bac6e41c85
While a custom post type can define a custom route by using the `rest_base` argument, a namespace of `wp/v2` was assumed. This commit introduces support for a `rest_namespace` argument. A new `rest_get_route_for_post_type_items` function has been introduced and the `rest_get_route_for_post` function updated to facilitate getting the correct route for custom post types. While the WordPress Core Block Editor bootstrap code has been updated to use these API functions, for maximum compatibility sticking with the default `wp/v2` namespace is recommended until the API functions see wider use. Props spacedmonkey, swissspidy. Fixes #53656. Built from https://develop.svn.wordpress.org/trunk@51962 git-svn-id: http://core.svn.wordpress.org/trunk@51551 1a063a9b-81f0-0310-95a4-ce76da25c4cd
398 lines
11 KiB
PHP
398 lines
11 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 ( in_array( 'capabilities', $fields, true ) ) {
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$data['capabilities'] = $post_type->cap;
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}
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if ( in_array( 'description', $fields, true ) ) {
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$data['description'] = $post_type->description;
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}
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if ( in_array( 'hierarchical', $fields, true ) ) {
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$data['hierarchical'] = $post_type->hierarchical;
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}
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if ( in_array( 'visibility', $fields, true ) ) {
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$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 ( in_array( 'viewable', $fields, true ) ) {
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$data['viewable'] = is_post_type_viewable( $post_type );
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}
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if ( in_array( 'labels', $fields, true ) ) {
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$data['labels'] = $post_type->labels;
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}
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if ( in_array( 'name', $fields, true ) ) {
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$data['name'] = $post_type->label;
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}
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if ( in_array( 'slug', $fields, true ) ) {
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$data['slug'] = $post_type->name;
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}
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if ( in_array( 'supports', $fields, true ) ) {
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$data['supports'] = $supports;
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}
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if ( in_array( 'taxonomies', $fields, true ) ) {
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$data['taxonomies'] = array_values( $taxonomies );
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}
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if ( in_array( 'rest_base', $fields, true ) ) {
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$data['rest_base'] = $base;
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}
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if ( in_array( 'rest_namespace', $fields, true ) ) {
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$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( $data );
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$response->add_links(
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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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* 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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* 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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*
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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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'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 is 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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),
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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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