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<?php
/**
* REST API: WP_REST_Posts_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 4.7.0
*/
/**
* Core class to access posts via the REST API.
*
* @since 4.7.0
*
* @see WP_REST_Controller
*/
class WP_REST_Posts_Controller extends WP_REST_Controller {
/**
* Post type.
*
* @since 4.7.0
* @access protected
* @var string
*/
protected $post_type;
/**
* Instance of a post meta fields object.
*
* @since 4.7.0
* @access protected
* @var WP_REST_Post_Meta_Fields
*/
protected $meta;
/**
* Constructor.
*
* @since 4.7.0
* @access public
*
* @param string $post_type Post type.
*/
public function __construct( $post_type ) {
$this->post_type = $post_type;
$this->namespace = 'wp/v2';
$obj = get_post_type_object( $post_type );
$this->rest_base = ! empty( $obj->rest_base ) ? $obj->rest_base : $obj->name;
$this->meta = new WP_REST_Post_Meta_Fields( $this->post_type );
}
/**
* Registers the routes for the objects of the controller.
*
* @since 4.7.0
* @access public
*
* @see register_rest_route()
*/
public function register_routes() {
register_rest_route( $this->namespace, '/' . $this->rest_base, array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_items' ),
'permission_callback' => array( $this, 'get_items_permissions_check' ),
'args' => $this->get_collection_params(),
),
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'create_item' ),
'permission_callback' => array( $this, 'create_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),
),
'schema' => array( $this, 'get_public_item_schema' ),
) );
$schema = $this->get_item_schema();
$get_item_args = array(
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
);
if ( isset( $schema['properties']['password'] ) ) {
$get_item_args['password'] = array(
'description' => __( 'The password for the post if it is password protected.' ),
'type' => 'string',
);
}
register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P<id>[\d]+)', array(
'args' => array(
'id' => array(
'description' => __( 'Unique identifier for the object.' ),
'type' => 'integer',
),
),
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_item' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => $get_item_args,
),
array(
'methods' => WP_REST_Server::EDITABLE,
'callback' => array( $this, 'update_item' ),
'permission_callback' => array( $this, 'update_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
),
array(
'methods' => WP_REST_Server::DELETABLE,
'callback' => array( $this, 'delete_item' ),
'permission_callback' => array( $this, 'delete_item_permissions_check' ),
'args' => array(
'force' => array(
'type' => 'boolean',
'default' => false,
'description' => __( 'Whether to bypass trash and force deletion.' ),
),
),
),
'schema' => array( $this, 'get_public_item_schema' ),
) );
}
/**
* Checks if a given request has access to read posts.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
*/
public function get_items_permissions_check( $request ) {
$post_type = get_post_type_object( $this->post_type );
if ( 'edit' === $request['context'] && ! current_user_can( $post_type->cap->edit_posts ) ) {
return new WP_Error( 'rest_forbidden_context', __( 'Sorry, you are not allowed to edit posts in this post type.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Retrieves a collection of posts.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function get_items( $request ) {
// Ensure a search string is set in case the orderby is set to 'relevance'.
if ( ! empty( $request['orderby'] ) && 'relevance' === $request['orderby'] && empty( $request['search'] ) ) {
return new WP_Error( 'rest_no_search_term_defined', __( 'You need to define a search term to order by relevance.' ), array( 'status' => 400 ) );
}
// Ensure an include parameter is set in case the orderby is set to 'include'.
if ( ! empty( $request['orderby'] ) && 'include' === $request['orderby'] && empty( $request['include'] ) ) {
return new WP_Error( 'rest_orderby_include_missing_include', sprintf( __( 'Missing parameter(s): %s' ), 'include' ), array( 'status' => 400 ) );
}
// Retrieve the list of registered collection query parameters.
$registered = $this->get_collection_params();
$args = array();
/*
* This array defines mappings between public API query parameters whose
* values are accepted as-passed, and their internal WP_Query parameter
* name equivalents (some are the same). Only values which are also
* present in $registered will be set.
*/
$parameter_mappings = array(
'author' => 'author__in',
'author_exclude' => 'author__not_in',
'exclude' => 'post__not_in',
'include' => 'post__in',
'menu_order' => 'menu_order',
'offset' => 'offset',
'order' => 'order',
'orderby' => 'orderby',
'page' => 'paged',
'parent' => 'post_parent__in',
'parent_exclude' => 'post_parent__not_in',
'search' => 's',
'slug' => 'post_name__in',
'status' => 'post_status',
);
/*
* For each known parameter which is both registered and present in the request,
* set the parameter's value on the query $args.
*/
foreach ( $parameter_mappings as $api_param => $wp_param ) {
if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {
$args[ $wp_param ] = $request[ $api_param ];
}
}
// Check for & assign any parameters which require special handling or setting.
$args['date_query'] = array();
// Set before into date query. Date query must be specified as an array of an array.
if ( isset( $registered['before'], $request['before'] ) ) {
$args['date_query'][0]['before'] = $request['before'];
}
// Set after into date query. Date query must be specified as an array of an array.
if ( isset( $registered['after'], $request['after'] ) ) {
$args['date_query'][0]['after'] = $request['after'];
}
// Ensure our per_page parameter overrides any provided posts_per_page filter.
if ( isset( $registered['per_page'] ) ) {
$args['posts_per_page'] = $request['per_page'];
}
if ( isset( $registered['sticky'], $request['sticky'] ) ) {
$sticky_posts = get_option( 'sticky_posts', array() );
if ( ! is_array( $sticky_posts ) ) {
$sticky_posts = array();
}
if ( $request['sticky'] ) {
/*
* As post__in will be used to only get sticky posts,
* we have to support the case where post__in was already
* specified.
*/
$args['post__in'] = $args['post__in'] ? array_intersect( $sticky_posts, $args['post__in'] ) : $sticky_posts;
/*
* If we intersected, but there are no post ids in common,
* WP_Query won't return "no posts" for post__in = array()
* so we have to fake it a bit.
*/
if ( ! $args['post__in'] ) {
$args['post__in'] = array( 0 );
}
} elseif ( $sticky_posts ) {
/*
* As post___not_in will be used to only get posts that
* are not sticky, we have to support the case where post__not_in
* was already specified.
*/
$args['post__not_in'] = array_merge( $args['post__not_in'], $sticky_posts );
}
}
// Force the post_type argument, since it's not a user input variable.
$args['post_type'] = $this->post_type;
/**
* Filters the query arguments for a request.
*
* Enables adding extra arguments or setting defaults for a post collection request.
*
* @since 4.7.0
*
* @link https://developer.wordpress.org/reference/classes/wp_query/
*
* @param array $args Key value array of query var to query value.
* @param WP_REST_Request $request The request used.
*/
$args = apply_filters( "rest_{$this->post_type}_query", $args, $request );
$query_args = $this->prepare_items_query( $args, $request );
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
$tax_exclude = $base . '_exclude';
if ( ! empty( $request[ $base ] ) ) {
$query_args['tax_query'][] = array(
'taxonomy' => $taxonomy->name,
'field' => 'term_id',
'terms' => $request[ $base ],
'include_children' => false,
);
}
if ( ! empty( $request[ $tax_exclude ] ) ) {
$query_args['tax_query'][] = array(
'taxonomy' => $taxonomy->name,
'field' => 'term_id',
'terms' => $request[ $tax_exclude ],
'include_children' => false,
'operator' => 'NOT IN',
);
}
}
$posts_query = new WP_Query();
$query_result = $posts_query->query( $query_args );
// Allow access to all password protected posts if the context is edit.
if ( 'edit' === $request['context'] ) {
add_filter( 'post_password_required', '__return_false' );
}
$posts = array();
foreach ( $query_result as $post ) {
if ( ! $this->check_read_permission( $post ) ) {
continue;
}
$data = $this->prepare_item_for_response( $post, $request );
$posts[] = $this->prepare_response_for_collection( $data );
}
// Reset filter.
if ( 'edit' === $request['context'] ) {
remove_filter( 'post_password_required', '__return_false' );
}
$page = (int) $query_args['paged'];
$total_posts = $posts_query->found_posts;
if ( $total_posts < 1 ) {
// Out-of-bounds, run the query again without LIMIT for total count.
unset( $query_args['paged'] );
$count_query = new WP_Query();
$count_query->query( $query_args );
$total_posts = $count_query->found_posts;
}
$max_pages = ceil( $total_posts / (int) $posts_query->query_vars['posts_per_page'] );
$response = rest_ensure_response( $posts );
$response->header( 'X-WP-Total', (int) $total_posts );
$response->header( 'X-WP-TotalPages', (int) $max_pages );
$request_params = $request->get_query_params();
$base = add_query_arg( $request_params, rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ) );
if ( $page > 1 ) {
$prev_page = $page - 1;
if ( $prev_page > $max_pages ) {
$prev_page = $max_pages;
}
$prev_link = add_query_arg( 'page', $prev_page, $base );
$response->link_header( 'prev', $prev_link );
}
if ( $max_pages > $page ) {
$next_page = $page + 1;
$next_link = add_query_arg( 'page', $next_page, $base );
$response->link_header( 'next', $next_link );
}
return $response;
}
/**
* Get the post, if the ID is valid.
*
* @since 4.7.2
*
* @param int $id Supplied ID.
* @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
*/
protected function get_post( $id ) {
$error = new WP_Error( 'rest_post_invalid_id', __( 'Invalid post ID.' ), array( 'status' => 404 ) );
if ( (int) $id <= 0 ) {
return $error;
}
$post = get_post( (int) $id );
if ( empty( $post ) || empty( $post->ID ) || $this->post_type !== $post->post_type ) {
return $error;
}
return $post;
}
/**
* Checks if a given request has access to read a post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return bool|WP_Error True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_item_permissions_check( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
if ( 'edit' === $request['context'] && $post && ! $this->check_update_permission( $post ) ) {
return new WP_Error( 'rest_forbidden_context', __( 'Sorry, you are not allowed to edit this post.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( $post && ! empty( $request['password'] ) ) {
// Check post password, and return error if invalid.
if ( ! hash_equals( $post->post_password, $request['password'] ) ) {
return new WP_Error( 'rest_post_incorrect_password', __( 'Incorrect post password.' ), array( 'status' => 403 ) );
}
}
// Allow access to all password protected posts if the context is edit.
if ( 'edit' === $request['context'] ) {
add_filter( 'post_password_required', '__return_false' );
}
if ( $post ) {
return $this->check_read_permission( $post );
}
return true;
}
/**
* Checks if the user can access password-protected content.
*
* This method determines whether we need to override the regular password
* check in core with a filter.
*
* @since 4.7.0
* @access public
*
* @param WP_Post $post Post to check against.
* @param WP_REST_Request $request Request data to check.
* @return bool True if the user can access password-protected content, otherwise false.
*/
public function can_access_password_content( $post, $request ) {
if ( empty( $post->post_password ) ) {
// No filter required.
return false;
}
// Edit context always gets access to password-protected posts.
if ( 'edit' === $request['context'] ) {
return true;
}
// No password, no auth.
if ( empty( $request['password'] ) ) {
return false;
}
// Double-check the request password.
return hash_equals( $post->post_password, $request['password'] );
}
/**
* Retrieves a single post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function get_item( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
$data = $this->prepare_item_for_response( $post, $request );
$response = rest_ensure_response( $data );
if ( is_post_type_viewable( get_post_type_object( $post->post_type ) ) ) {
$response->link_header( 'alternate', get_permalink( $post->ID ), array( 'type' => 'text/html' ) );
}
return $response;
}
/**
* Checks if a given request has access to create a post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to create items, WP_Error object otherwise.
*/
public function create_item_permissions_check( $request ) {
if ( ! empty( $request['id'] ) ) {
return new WP_Error( 'rest_post_exists', __( 'Cannot create existing post.' ), array( 'status' => 400 ) );
}
$post_type = get_post_type_object( $this->post_type );
if ( ! empty( $request['author'] ) && get_current_user_id() !== $request['author'] && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
return new WP_Error( 'rest_cannot_edit_others', __( 'Sorry, you are not allowed to create posts as this user.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
return new WP_Error( 'rest_cannot_assign_sticky', __( 'Sorry, you are not allowed to make posts sticky.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! current_user_can( $post_type->cap->create_posts ) ) {
return new WP_Error( 'rest_cannot_create', __( 'Sorry, you are not allowed to create posts as this user.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! $this->check_assign_terms_permission( $request ) ) {
return new WP_Error( 'rest_cannot_assign_term', __( 'Sorry, you are not allowed to assign the provided terms.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Creates a single post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function create_item( $request ) {
if ( ! empty( $request['id'] ) ) {
return new WP_Error( 'rest_post_exists', __( 'Cannot create existing post.' ), array( 'status' => 400 ) );
}
$prepared_post = $this->prepare_item_for_database( $request );
if ( is_wp_error( $prepared_post ) ) {
return $prepared_post;
}
$prepared_post->post_type = $this->post_type;
$post_id = wp_insert_post( wp_slash( (array) $prepared_post ), true );
if ( is_wp_error( $post_id ) ) {
if ( 'db_insert_error' === $post_id->get_error_code() ) {
$post_id->add_data( array( 'status' => 500 ) );
} else {
$post_id->add_data( array( 'status' => 400 ) );
}
return $post_id;
}
$post = get_post( $post_id );
/**
* Fires after a single post is created or updated via the REST API.
*
* The dynamic portion of the hook name, `$this->post_type`, refers to the post type slug.
*
* @since 4.7.0
*
* @param WP_Post $post Inserted or updated post object.
* @param WP_REST_Request $request Request object.
* @param bool $creating True when creating a post, false when updating.
*/
do_action( "rest_insert_{$this->post_type}", $post, $request, true );
$schema = $this->get_item_schema();
if ( ! empty( $schema['properties']['sticky'] ) ) {
if ( ! empty( $request['sticky'] ) ) {
stick_post( $post_id );
} else {
unstick_post( $post_id );
}
}
if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {
$this->handle_featured_media( $request['featured_media'], $post_id );
}
if ( ! empty( $schema['properties']['format'] ) && ! empty( $request['format'] ) ) {
set_post_format( $post, $request['format'] );
}
if ( ! empty( $schema['properties']['template'] ) && isset( $request['template'] ) ) {
$this->handle_template( $request['template'], $post_id );
}
$terms_update = $this->handle_terms( $post_id, $request );
if ( is_wp_error( $terms_update ) ) {
return $terms_update;
}
if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
$meta_update = $this->meta->update_value( $request['meta'], $post_id );
if ( is_wp_error( $meta_update ) ) {
return $meta_update;
}
}
$post = get_post( $post_id );
$fields_update = $this->update_additional_fields_for_object( $post, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$request->set_param( 'context', 'edit' );
$response = $this->prepare_item_for_response( $post, $request );
$response = rest_ensure_response( $response );
$response->set_status( 201 );
$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $post_id ) ) );
return $response;
}
/**
* Checks if a given request has access to update a post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to update the item, WP_Error object otherwise.
*/
public function update_item_permissions_check( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
$post_type = get_post_type_object( $this->post_type );
if ( $post && ! $this->check_update_permission( $post ) ) {
return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you are not allowed to edit this post.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! empty( $request['author'] ) && get_current_user_id() !== $request['author'] && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
return new WP_Error( 'rest_cannot_edit_others', __( 'Sorry, you are not allowed to update posts as this user.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! empty( $request['sticky'] ) && ! current_user_can( $post_type->cap->edit_others_posts ) ) {
return new WP_Error( 'rest_cannot_assign_sticky', __( 'Sorry, you are not allowed to make posts sticky.' ), array( 'status' => rest_authorization_required_code() ) );
}
if ( ! $this->check_assign_terms_permission( $request ) ) {
return new WP_Error( 'rest_cannot_assign_term', __( 'Sorry, you are not allowed to assign the provided terms.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Updates a single post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function update_item( $request ) {
$valid_check = $this->get_post( $request['id'] );
if ( is_wp_error( $valid_check ) ) {
return $valid_check;
}
$post = $this->prepare_item_for_database( $request );
if ( is_wp_error( $post ) ) {
return $post;
}
// convert the post object to an array, otherwise wp_update_post will expect non-escaped input.
$post_id = wp_update_post( wp_slash( (array) $post ), true );
if ( is_wp_error( $post_id ) ) {
if ( 'db_update_error' === $post_id->get_error_code() ) {
$post_id->add_data( array( 'status' => 500 ) );
} else {
$post_id->add_data( array( 'status' => 400 ) );
}
return $post_id;
}
$post = get_post( $post_id );
/* This action is documented in lib/endpoints/class-wp-rest-controller.php */
do_action( "rest_insert_{$this->post_type}", $post, $request, false );
$schema = $this->get_item_schema();
if ( ! empty( $schema['properties']['format'] ) && ! empty( $request['format'] ) ) {
set_post_format( $post, $request['format'] );
}
if ( ! empty( $schema['properties']['featured_media'] ) && isset( $request['featured_media'] ) ) {
$this->handle_featured_media( $request['featured_media'], $post_id );
}
if ( ! empty( $schema['properties']['sticky'] ) && isset( $request['sticky'] ) ) {
if ( ! empty( $request['sticky'] ) ) {
stick_post( $post_id );
} else {
unstick_post( $post_id );
}
}
if ( ! empty( $schema['properties']['template'] ) && isset( $request['template'] ) ) {
$this->handle_template( $request['template'], $post->ID );
}
$terms_update = $this->handle_terms( $post->ID, $request );
if ( is_wp_error( $terms_update ) ) {
return $terms_update;
}
if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
$meta_update = $this->meta->update_value( $request['meta'], $post->ID );
if ( is_wp_error( $meta_update ) ) {
return $meta_update;
}
}
$post = get_post( $post_id );
$fields_update = $this->update_additional_fields_for_object( $post, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$request->set_param( 'context', 'edit' );
$response = $this->prepare_item_for_response( $post, $request );
return rest_ensure_response( $response );
}
/**
* Checks if a given request has access to delete a post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to delete the item, WP_Error object otherwise.
*/
public function delete_item_permissions_check( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
if ( $post && ! $this->check_delete_permission( $post ) ) {
return new WP_Error( 'rest_cannot_delete', __( 'Sorry, you are not allowed to delete this post.' ), array( 'status' => rest_authorization_required_code() ) );
}
return true;
}
/**
* Deletes a single post.
*
* @since 4.7.0
* @access public
*
* @param WP_REST_Request $request Full details about the request.
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
*/
public function delete_item( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
$id = $post->ID;
$force = (bool) $request['force'];
$supports_trash = ( EMPTY_TRASH_DAYS > 0 );
if ( 'attachment' === $post->post_type ) {
$supports_trash = $supports_trash && MEDIA_TRASH;
}
/**
* Filters whether a post is trashable.
*
* The dynamic portion of the hook name, `$this->post_type`, refers to the post type slug.
*
* Pass false to disable trash support for the post.
*
* @since 4.7.0
*
* @param bool $supports_trash Whether the post type support trashing.
* @param WP_Post $post The Post object being considered for trashing support.
*/
$supports_trash = apply_filters( "rest_{$this->post_type}_trashable", $supports_trash, $post );
if ( ! $this->check_delete_permission( $post ) ) {
return new WP_Error( 'rest_user_cannot_delete_post', __( 'Sorry, you are not allowed to delete this post.' ), array( 'status' => rest_authorization_required_code() ) );
}
$request->set_param( 'context', 'edit' );
// If we're forcing, then delete permanently.
if ( $force ) {
$previous = $this->prepare_item_for_response( $post, $request );
$result = wp_delete_post( $id, true );
$response = new WP_REST_Response();
$response->set_data( array( 'deleted' => true, 'previous' => $previous->get_data() ) );
} else {
// If we don't support trashing for this type, error out.
if ( ! $supports_trash ) {
return new WP_Error( 'rest_trash_not_supported', __( 'The post does not support trashing. Set force=true to delete.' ), array( 'status' => 501 ) );
}
// Otherwise, only trash if we haven't already.
if ( 'trash' === $post->post_status ) {
return new WP_Error( 'rest_already_trashed', __( 'The post has already been deleted.' ), array( 'status' => 410 ) );
}
// (Note that internally this falls through to `wp_delete_post` if
// the trash is disabled.)
$result = wp_trash_post( $id );
$post = get_post( $id );
$response = $this->prepare_item_for_response( $post, $request );
}
if ( ! $result ) {
return new WP_Error( 'rest_cannot_delete', __( 'The post cannot be deleted.' ), array( 'status' => 500 ) );
}
/**
* Fires immediately after a single post is deleted or trashed via the REST API.
*
* They dynamic portion of the hook name, `$this->post_type`, refers to the post type slug.
*
* @since 4.7.0
*
* @param object $post The deleted or trashed post.
* @param WP_REST_Response $response The response data.
* @param WP_REST_Request $request The request sent to the API.
*/
do_action( "rest_delete_{$this->post_type}", $post, $response, $request );
return $response;
}
/**
* Determines the allowed query_vars for a get_items() response and prepares
* them for WP_Query.
*
* @since 4.7.0
* @access protected
*
* @param array $prepared_args Optional. Prepared WP_Query arguments. Default empty array.
* @param WP_REST_Request $request Optional. Full details about the request.
* @return array Items query arguments.
*/
protected function prepare_items_query( $prepared_args = array(), $request = null ) {
$query_args = array();
foreach ( $prepared_args as $key => $value ) {
/**
* Filters the query_vars used in get_items() for the constructed query.
*
* The dynamic portion of the hook name, `$key`, refers to the query_var key.
*
* @since 4.7.0
*
* @param string $value The query_var value.
*/
$query_args[ $key ] = apply_filters( "rest_query_var-{$key}", $value );
}
if ( 'post' !== $this->post_type || ! isset( $query_args['ignore_sticky_posts'] ) ) {
$query_args['ignore_sticky_posts'] = true;
}
// Map to proper WP_Query orderby param.
if ( isset( $query_args['orderby'] ) && isset( $request['orderby'] ) ) {
$orderby_mappings = array(
'id' => 'ID',
'include' => 'post__in',
'slug' => 'post_name',
);
if ( isset( $orderby_mappings[ $request['orderby'] ] ) ) {
$query_args['orderby'] = $orderby_mappings[ $request['orderby'] ];
}
}
return $query_args;
}
/**
* Checks the post_date_gmt or modified_gmt and prepare any post or
* modified date for single post output.
*
* @since 4.7.0
* @access protected
*
* @param string $date_gmt GMT publication time.
* @param string|null $date Optional. Local publication time. Default null.
* @return string|null ISO8601/RFC3339 formatted datetime.
*/
protected function prepare_date_response( $date_gmt, $date = null ) {
// Use the date if passed.
if ( isset( $date ) ) {
return mysql_to_rfc3339( $date );
}
// Return null if $date_gmt is empty/zeros.
if ( '0000-00-00 00:00:00' === $date_gmt ) {
return null;
}
// Return the formatted datetime.
return mysql_to_rfc3339( $date_gmt );
}
/**
* Prepares a single post for create or update.
*
* @since 4.7.0
* @access protected
*
* @param WP_REST_Request $request Request object.
* @return stdClass|WP_Error Post object or WP_Error.
*/
protected function prepare_item_for_database( $request ) {
$prepared_post = new stdClass;
// Post ID.
if ( isset( $request['id'] ) ) {
$existing_post = $this->get_post( $request['id'] );
if ( is_wp_error( $existing_post ) ) {
return $existing_post;
}
$prepared_post->ID = $existing_post->ID;
}
$schema = $this->get_item_schema();
// Post title.
if ( ! empty( $schema['properties']['title'] ) && isset( $request['title'] ) ) {
if ( is_string( $request['title'] ) ) {
$prepared_post->post_title = $request['title'];
} elseif ( ! empty( $request['title']['raw'] ) ) {
$prepared_post->post_title = $request['title']['raw'];
}
}
// Post content.
if ( ! empty( $schema['properties']['content'] ) && isset( $request['content'] ) ) {
if ( is_string( $request['content'] ) ) {
$prepared_post->post_content = $request['content'];
} elseif ( isset( $request['content']['raw'] ) ) {
$prepared_post->post_content = $request['content']['raw'];
}
}
// Post excerpt.
if ( ! empty( $schema['properties']['excerpt'] ) && isset( $request['excerpt'] ) ) {
if ( is_string( $request['excerpt'] ) ) {
$prepared_post->post_excerpt = $request['excerpt'];
} elseif ( isset( $request['excerpt']['raw'] ) ) {
$prepared_post->post_excerpt = $request['excerpt']['raw'];
}
}
// Post type.
if ( empty( $request['id'] ) ) {
// Creating new post, use default type for the controller.
$prepared_post->post_type = $this->post_type;
} else {
// Updating a post, use previous type.
$prepared_post->post_type = get_post_type( $request['id'] );
}
$post_type = get_post_type_object( $prepared_post->post_type );
// Post status.
if ( ! empty( $schema['properties']['status'] ) && isset( $request['status'] ) ) {
$status = $this->handle_status_param( $request['status'], $post_type );
if ( is_wp_error( $status ) ) {
return $status;
}
$prepared_post->post_status = $status;
}
// Post date.
if ( ! empty( $schema['properties']['date'] ) && ! empty( $request['date'] ) ) {
$date_data = rest_get_date_with_gmt( $request['date'] );
if ( ! empty( $date_data ) ) {
list( $prepared_post->post_date, $prepared_post->post_date_gmt ) = $date_data;
$prepared_post->edit_date = true;
}
} elseif ( ! empty( $schema['properties']['date_gmt'] ) && ! empty( $request['date_gmt'] ) ) {
$date_data = rest_get_date_with_gmt( $request['date_gmt'], true );
if ( ! empty( $date_data ) ) {
list( $prepared_post->post_date, $prepared_post->post_date_gmt ) = $date_data;
$prepared_post->edit_date = true;
}
}
// Post slug.
if ( ! empty( $schema['properties']['slug'] ) && isset( $request['slug'] ) ) {
$prepared_post->post_name = $request['slug'];
}
// Author.
if ( ! empty( $schema['properties']['author'] ) && ! empty( $request['author'] ) ) {
$post_author = (int) $request['author'];
if ( get_current_user_id() !== $post_author ) {
$user_obj = get_userdata( $post_author );
if ( ! $user_obj ) {
return new WP_Error( 'rest_invalid_author', __( 'Invalid author ID.' ), array( 'status' => 400 ) );
}
}
$prepared_post->post_author = $post_author;
}
// Post password.
if ( ! empty( $schema['properties']['password'] ) && isset( $request['password'] ) ) {
$prepared_post->post_password = $request['password'];
if ( '' !== $request['password'] ) {
if ( ! empty( $schema['properties']['sticky'] ) && ! empty( $request['sticky'] ) ) {
return new WP_Error( 'rest_invalid_field', __( 'A post can not be sticky and have a password.' ), array( 'status' => 400 ) );
}
if ( ! empty( $prepared_post->ID ) && is_sticky( $prepared_post->ID ) ) {
return new WP_Error( 'rest_invalid_field', __( 'A sticky post can not be password protected.' ), array( 'status' => 400 ) );
}
}
}
if ( ! empty( $schema['properties']['sticky'] ) && ! empty( $request['sticky'] ) ) {
if ( ! empty( $prepared_post->ID ) && post_password_required( $prepared_post->ID ) ) {
return new WP_Error( 'rest_invalid_field', __( 'A password protected post can not be set to sticky.' ), array( 'status' => 400 ) );
}
}
// Parent.
if ( ! empty( $schema['properties']['parent'] ) && isset( $request['parent'] ) ) {
if ( 0 === (int) $request['parent'] ) {
$prepared_post->post_parent = 0;
} else {
$parent = get_post( (int) $request['parent'] );
if ( empty( $parent ) ) {
return new WP_Error( 'rest_post_invalid_id', __( 'Invalid post parent ID.' ), array( 'status' => 400 ) );
}
$prepared_post->post_parent = (int) $parent->ID;
}
}
// Menu order.
if ( ! empty( $schema['properties']['menu_order'] ) && isset( $request['menu_order'] ) ) {
$prepared_post->menu_order = (int) $request['menu_order'];
}
// Comment status.
if ( ! empty( $schema['properties']['comment_status'] ) && ! empty( $request['comment_status'] ) ) {
$prepared_post->comment_status = $request['comment_status'];
}
// Ping status.
if ( ! empty( $schema['properties']['ping_status'] ) && ! empty( $request['ping_status'] ) ) {
$prepared_post->ping_status = $request['ping_status'];
}
/**
* Filters a post before it is inserted via the REST API.
*
* The dynamic portion of the hook name, `$this->post_type`, refers to the post type slug.
*
* @since 4.7.0
*
* @param stdClass $prepared_post An object representing a single post prepared
* for inserting or updating the database.
* @param WP_REST_Request $request Request object.
*/
return apply_filters( "rest_pre_insert_{$this->post_type}", $prepared_post, $request );
}
/**
* Determines validity and normalizes the given status parameter.
*
* @since 4.7.0
* @access protected
*
* @param string $post_status Post status.
* @param object $post_type Post type.
* @return string|WP_Error Post status or WP_Error if lacking the proper permission.
*/
protected function handle_status_param( $post_status, $post_type ) {
switch ( $post_status ) {
case 'draft':
case 'pending':
break;
case 'private':
if ( ! current_user_can( $post_type->cap->publish_posts ) ) {
return new WP_Error( 'rest_cannot_publish', __( 'Sorry, you are not allowed to create private posts in this post type.' ), array( 'status' => rest_authorization_required_code() ) );
}
break;
case 'publish':
case 'future':
if ( ! current_user_can( $post_type->cap->publish_posts ) ) {
return new WP_Error( 'rest_cannot_publish', __( 'Sorry, you are not allowed to publish posts in this post type.' ), array( 'status' => rest_authorization_required_code() ) );
}
break;
default:
if ( ! get_post_status_object( $post_status ) ) {
$post_status = 'draft';
}
break;
}
return $post_status;
}
/**
* Determines the featured media based on a request param.
*
* @since 4.7.0
* @access protected
*
* @param int $featured_media Featured Media ID.
* @param int $post_id Post ID.
* @return bool|WP_Error Whether the post thumbnail was successfully deleted, otherwise WP_Error.
*/
protected function handle_featured_media( $featured_media, $post_id ) {
$featured_media = (int) $featured_media;
if ( $featured_media ) {
$result = set_post_thumbnail( $post_id, $featured_media );
if ( $result ) {
return true;
} else {
return new WP_Error( 'rest_invalid_featured_media', __( 'Invalid featured media ID.' ), array( 'status' => 400 ) );
}
} else {
return delete_post_thumbnail( $post_id );
}
}
/**
* Sets the template for a post.
*
* @since 4.7.0
* @access public
*
* @param string $template Page template filename.
* @param integer $post_id Post ID.
*/
public function handle_template( $template, $post_id ) {
if ( in_array( $template, array_keys( wp_get_theme()->get_page_templates( get_post( $post_id ) ) ), true ) ) {
update_post_meta( $post_id, '_wp_page_template', $template );
} else {
update_post_meta( $post_id, '_wp_page_template', '' );
}
}
/**
* Updates the post's terms from a REST request.
*
* @since 4.7.0
* @access protected
*
* @param int $post_id The post ID to update the terms form.
* @param WP_REST_Request $request The request object with post and terms data.
* @return null|WP_Error WP_Error on an error assigning any of the terms, otherwise null.
*/
protected function handle_terms( $post_id, $request ) {
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
if ( ! isset( $request[ $base ] ) ) {
continue;
}
$result = wp_set_object_terms( $post_id, $request[ $base ], $taxonomy->name );
if ( is_wp_error( $result ) ) {
return $result;
}
}
}
/**
* Checks whether current user can assign all terms sent with the current request.
*
* @since 4.7.0
*
* @param WP_REST_Request $request The request object with post and terms data.
* @return bool Whether the current user can assign the provided terms.
*/
protected function check_assign_terms_permission( $request ) {
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
if ( ! isset( $request[ $base ] ) ) {
continue;
}
foreach ( $request[ $base ] as $term_id ) {
// Invalid terms will be rejected later.
if ( ! get_term( $term_id, $taxonomy->name ) ) {
continue;
}
if ( ! current_user_can( 'assign_term', (int) $term_id ) ) {
return false;
}
}
}
return true;
}
/**
* Checks if a given post type can be viewed or managed.
*
* @since 4.7.0
* @access protected
*
* @param object|string $post_type Post type name or object.
* @return bool Whether the post type is allowed in REST.
*/
protected function check_is_post_type_allowed( $post_type ) {
if ( ! is_object( $post_type ) ) {
$post_type = get_post_type_object( $post_type );
}
if ( ! empty( $post_type ) && ! empty( $post_type->show_in_rest ) ) {
return true;
}
return false;
}
/**
* Checks if a post can be read.
*
* Correctly handles posts with the inherit status.
*
* @since 4.7.0
* @access public
*
* @param object $post Post object.
* @return bool Whether the post can be read.
*/
public function check_read_permission( $post ) {
$post_type = get_post_type_object( $post->post_type );
if ( ! $this->check_is_post_type_allowed( $post_type ) ) {
return false;
}
// Is the post readable?
if ( 'publish' === $post->post_status || current_user_can( $post_type->cap->read_post, $post->ID ) ) {
return true;
}
$post_status_obj = get_post_status_object( $post->post_status );
if ( $post_status_obj && $post_status_obj->public ) {
return true;
}
// Can we read the parent if we're inheriting?
if ( 'inherit' === $post->post_status && $post->post_parent > 0 ) {
$parent = get_post( $post->post_parent );
if ( $parent ) {
return $this->check_read_permission( $parent );
}
}
/*
* If there isn't a parent, but the status is set to inherit, assume
* it's published (as per get_post_status()).
*/
if ( 'inherit' === $post->post_status ) {
return true;
}
return false;
}
/**
* Checks if a post can be edited.
*
* @since 4.7.0
* @access protected
*
* @param object $post Post object.
* @return bool Whether the post can be edited.
*/
protected function check_update_permission( $post ) {
$post_type = get_post_type_object( $post->post_type );
if ( ! $this->check_is_post_type_allowed( $post_type ) ) {
return false;
}
return current_user_can( $post_type->cap->edit_post, $post->ID );
}
/**
* Checks if a post can be created.
*
* @since 4.7.0
* @access protected
*
* @param object $post Post object.
* @return bool Whether the post can be created.
*/
protected function check_create_permission( $post ) {
$post_type = get_post_type_object( $post->post_type );
if ( ! $this->check_is_post_type_allowed( $post_type ) ) {
return false;
}
return current_user_can( $post_type->cap->create_posts );
}
/**
* Checks if a post can be deleted.
*
* @since 4.7.0
* @access protected
*
* @param object $post Post object.
* @return bool Whether the post can be deleted.
*/
protected function check_delete_permission( $post ) {
$post_type = get_post_type_object( $post->post_type );
if ( ! $this->check_is_post_type_allowed( $post_type ) ) {
return false;
}
return current_user_can( $post_type->cap->delete_post, $post->ID );
}
/**
* Prepares a single post output for response.
*
* @since 4.7.0
* @access public
*
* @param WP_Post $post Post object.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response Response object.
*/
public function prepare_item_for_response( $post, $request ) {
$GLOBALS['post'] = $post;
setup_postdata( $post );
$schema = $this->get_item_schema();
// Base fields for every post.
$data = array();
if ( ! empty( $schema['properties']['id'] ) ) {
$data['id'] = $post->ID;
}
if ( ! empty( $schema['properties']['date'] ) ) {
$data['date'] = $this->prepare_date_response( $post->post_date_gmt, $post->post_date );
}
if ( ! empty( $schema['properties']['date_gmt'] ) ) {
// For drafts, `post_date_gmt` may not be set, indicating that the
// date of the draft should be updated each time it is saved (see
// #38883). In this case, shim the value based on the `post_date`
// field with the site's timezone offset applied.
if ( '0000-00-00 00:00:00' === $post->post_date_gmt ) {
$post_date_gmt = get_gmt_from_date( $post->post_date );
} else {
$post_date_gmt = $post->post_date_gmt;
}
$data['date_gmt'] = $this->prepare_date_response( $post_date_gmt );
}
if ( ! empty( $schema['properties']['guid'] ) ) {
$data['guid'] = array(
/** This filter is documented in wp-includes/post-template.php */
'rendered' => apply_filters( 'get_the_guid', $post->guid ),
'raw' => $post->guid,
);
}
if ( ! empty( $schema['properties']['modified'] ) ) {
$data['modified'] = $this->prepare_date_response( $post->post_modified_gmt, $post->post_modified );
}
if ( ! empty( $schema['properties']['modified_gmt'] ) ) {
// For drafts, `post_modified_gmt` may not be set (see
// `post_date_gmt` comments above). In this case, shim the value
// based on the `post_modified` field with the site's timezone
// offset applied.
if ( '0000-00-00 00:00:00' === $post->post_modified_gmt ) {
$post_modified_gmt = date( 'Y-m-d H:i:s', strtotime( $post->post_modified ) - ( get_option( 'gmt_offset' ) * 3600 ) );
} else {
$post_modified_gmt = $post->post_modified_gmt;
}
$data['modified_gmt'] = $this->prepare_date_response( $post_modified_gmt );
}
if ( ! empty( $schema['properties']['password'] ) ) {
$data['password'] = $post->post_password;
}
if ( ! empty( $schema['properties']['slug'] ) ) {
$data['slug'] = $post->post_name;
}
if ( ! empty( $schema['properties']['status'] ) ) {
$data['status'] = $post->post_status;
}
if ( ! empty( $schema['properties']['type'] ) ) {
$data['type'] = $post->post_type;
}
if ( ! empty( $schema['properties']['link'] ) ) {
$data['link'] = get_permalink( $post->ID );
}
if ( ! empty( $schema['properties']['title'] ) ) {
add_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
$data['title'] = array(
'raw' => $post->post_title,
'rendered' => get_the_title( $post->ID ),
);
remove_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
}
$has_password_filter = false;
if ( $this->can_access_password_content( $post, $request ) ) {
// Allow access to the post, permissions already checked before.
add_filter( 'post_password_required', '__return_false' );
$has_password_filter = true;
}
if ( ! empty( $schema['properties']['content'] ) ) {
$data['content'] = array(
'raw' => $post->post_content,
/** This filter is documented in wp-includes/post-template.php */
'rendered' => post_password_required( $post ) ? '' : apply_filters( 'the_content', $post->post_content ),
'protected' => (bool) $post->post_password,
);
}
if ( ! empty( $schema['properties']['excerpt'] ) ) {
/** This filter is documented in wp-includes/post-template.php */
$excerpt = apply_filters( 'the_excerpt', apply_filters( 'get_the_excerpt', $post->post_excerpt, $post ) );
$data['excerpt'] = array(
'raw' => $post->post_excerpt,
'rendered' => post_password_required( $post ) ? '' : $excerpt,
'protected' => (bool) $post->post_password,
);
}
if ( $has_password_filter ) {
// Reset filter.
remove_filter( 'post_password_required', '__return_false' );
}
if ( ! empty( $schema['properties']['author'] ) ) {
$data['author'] = (int) $post->post_author;
}
if ( ! empty( $schema['properties']['featured_media'] ) ) {
$data['featured_media'] = (int) get_post_thumbnail_id( $post->ID );
}
if ( ! empty( $schema['properties']['parent'] ) ) {
$data['parent'] = (int) $post->post_parent;
}
if ( ! empty( $schema['properties']['menu_order'] ) ) {
$data['menu_order'] = (int) $post->menu_order;
}
if ( ! empty( $schema['properties']['comment_status'] ) ) {
$data['comment_status'] = $post->comment_status;
}
if ( ! empty( $schema['properties']['ping_status'] ) ) {
$data['ping_status'] = $post->ping_status;
}
if ( ! empty( $schema['properties']['sticky'] ) ) {
$data['sticky'] = is_sticky( $post->ID );
}
if ( ! empty( $schema['properties']['template'] ) ) {
if ( $template = get_page_template_slug( $post->ID ) ) {
$data['template'] = $template;
} else {
$data['template'] = '';
}
}
if ( ! empty( $schema['properties']['format'] ) ) {
$data['format'] = get_post_format( $post->ID );
// Fill in blank post format.
if ( empty( $data['format'] ) ) {
$data['format'] = 'standard';
}
}
if ( ! empty( $schema['properties']['meta'] ) ) {
$data['meta'] = $this->meta->get_value( $post->ID, $request );
}
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
if ( ! empty( $schema['properties'][ $base ] ) ) {
$terms = get_the_terms( $post, $taxonomy->name );
$data[ $base ] = $terms ? array_values( wp_list_pluck( $terms, 'term_id' ) ) : array();
}
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
// Wrap the data in a response object.
$response = rest_ensure_response( $data );
$response->add_links( $this->prepare_links( $post ) );
/**
* Filters the post data for a response.
*
* The dynamic portion of the hook name, `$this->post_type`, refers to the post type slug.
*
* @since 4.7.0
*
* @param WP_REST_Response $response The response object.
* @param WP_Post $post Post object.
* @param WP_REST_Request $request Request object.
*/
return apply_filters( "rest_prepare_{$this->post_type}", $response, $post, $request );
}
/**
* Overwrites the default protected title format.
*
* By default, WordPress will show password protected posts with a title of
* "Protected: %s", as the REST API communicates the protected status of a post
* in a machine readable format, we remove the "Protected: " prefix.
*
* @return string Protected title format.
*/
public function protected_title_format() {
return '%s';
}
/**
* Prepares links for the request.
*
* @since 4.7.0
* @access protected
*
* @param WP_Post $post Post object.
* @return array Links for the given post.
*/
protected function prepare_links( $post ) {
$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
// Entity meta.
$links = array(
'self' => array(
'href' => rest_url( trailingslashit( $base ) . $post->ID ),
),
'collection' => array(
'href' => rest_url( $base ),
),
'about' => array(
'href' => rest_url( 'wp/v2/types/' . $this->post_type ),
),
);
if ( ( in_array( $post->post_type, array( 'post', 'page' ), true ) || post_type_supports( $post->post_type, 'author' ) )
&& ! empty( $post->post_author ) ) {
$links['author'] = array(
'href' => rest_url( 'wp/v2/users/' . $post->post_author ),
'embeddable' => true,
);
}
if ( in_array( $post->post_type, array( 'post', 'page' ), true ) || post_type_supports( $post->post_type, 'comments' ) ) {
$replies_url = rest_url( 'wp/v2/comments' );
$replies_url = add_query_arg( 'post', $post->ID, $replies_url );
$links['replies'] = array(
'href' => $replies_url,
'embeddable' => true,
);
}
if ( in_array( $post->post_type, array( 'post', 'page' ), true ) || post_type_supports( $post->post_type, 'revisions' ) ) {
$links['version-history'] = array(
'href' => rest_url( trailingslashit( $base ) . $post->ID . '/revisions' ),
);
}
$post_type_obj = get_post_type_object( $post->post_type );
if ( $post_type_obj->hierarchical && ! empty( $post->post_parent ) ) {
$links['up'] = array(
'href' => rest_url( trailingslashit( $base ) . (int) $post->post_parent ),
'embeddable' => true,
);
}
// If we have a featured media, add that.
if ( $featured_media = get_post_thumbnail_id( $post->ID ) ) {
$image_url = rest_url( 'wp/v2/media/' . $featured_media );
$links['https://api.w.org/featuredmedia'] = array(
'href' => $image_url,
'embeddable' => true,
);
}
if ( ! in_array( $post->post_type, array( 'attachment', 'nav_menu_item', 'revision' ), true ) ) {
$attachments_url = rest_url( 'wp/v2/media' );
$attachments_url = add_query_arg( 'parent', $post->ID, $attachments_url );
$links['https://api.w.org/attachment'] = array(
'href' => $attachments_url,
);
}
$taxonomies = get_object_taxonomies( $post->post_type );
if ( ! empty( $taxonomies ) ) {
$links['https://api.w.org/term'] = array();
foreach ( $taxonomies as $tax ) {
$taxonomy_obj = get_taxonomy( $tax );
// Skip taxonomies that are not public.
if ( empty( $taxonomy_obj->show_in_rest ) ) {
continue;
}
$tax_base = ! empty( $taxonomy_obj->rest_base ) ? $taxonomy_obj->rest_base : $tax;
$terms_url = add_query_arg(
'post',
$post->ID,
rest_url( 'wp/v2/' . $tax_base )
);
$links['https://api.w.org/term'][] = array(
'href' => $terms_url,
'taxonomy' => $tax,
'embeddable' => true,
);
}
}
return $links;
}
/**
* Retrieves the post's schema, conforming to JSON Schema.
*
* @since 4.7.0
* @access public
*
* @return array Item schema data.
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/schema#',
'title' => $this->post_type,
'type' => 'object',
// Base properties for every Post.
'properties' => array(
'date' => array(
'description' => __( "The date the object was published, in the site's timezone." ),
'type' => 'string',
'format' => 'date-time',
'context' => array( 'view', 'edit', 'embed' ),
),
'date_gmt' => array(
'description' => __( 'The date the object was published, as GMT.' ),
'type' => 'string',
'format' => 'date-time',
'context' => array( 'view', 'edit' ),
),
'guid' => array(
'description' => __( 'The globally unique identifier for the object.' ),
'type' => 'object',
'context' => array( 'view', 'edit' ),
'readonly' => true,
'properties' => array(
'raw' => array(
'description' => __( 'GUID for the object, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
'readonly' => true,
),
'rendered' => array(
'description' => __( 'GUID for the object, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
),
),
'id' => array(
'description' => __( 'Unique identifier for the object.' ),
'type' => 'integer',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
'link' => array(
'description' => __( 'URL to the object.' ),
'type' => 'string',
'format' => 'uri',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
'modified' => array(
'description' => __( "The date the object was last modified, in the site's timezone." ),
'type' => 'string',
'format' => 'date-time',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'modified_gmt' => array(
'description' => __( 'The date the object was last modified, as GMT.' ),
'type' => 'string',
'format' => 'date-time',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'slug' => array(
'description' => __( 'An alphanumeric identifier for the object unique to its type.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'arg_options' => array(
'sanitize_callback' => array( $this, 'sanitize_slug' ),
),
),
'status' => array(
'description' => __( 'A named status for the object.' ),
'type' => 'string',
'enum' => array_keys( get_post_stati( array( 'internal' => false ) ) ),
'context' => array( 'view', 'edit' ),
),
'type' => array(
'description' => __( 'Type of Post for the object.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
'password' => array(
'description' => __( 'A password to protect access to the content and excerpt.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
),
);
$post_type_obj = get_post_type_object( $this->post_type );
if ( $post_type_obj->hierarchical ) {
$schema['properties']['parent'] = array(
'description' => __( 'The ID for the parent of the object.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
}
$post_type_attributes = array(
'title',
'editor',
'author',
'excerpt',
'thumbnail',
'comments',
'revisions',
'page-attributes',
'post-formats',
'custom-fields',
);
$fixed_schemas = array(
'post' => array(
'title',
'editor',
'author',
'excerpt',
'thumbnail',
'comments',
'revisions',
'post-formats',
'custom-fields',
),
'page' => array(
'title',
'editor',
'author',
'excerpt',
'thumbnail',
'comments',
'revisions',
'page-attributes',
'custom-fields',
),
'attachment' => array(
'title',
'author',
'comments',
'revisions',
'custom-fields',
),
);
foreach ( $post_type_attributes as $attribute ) {
if ( isset( $fixed_schemas[ $this->post_type ] ) && ! in_array( $attribute, $fixed_schemas[ $this->post_type ], true ) ) {
continue;
} elseif ( ! isset( $fixed_schemas[ $this->post_type ] ) && ! post_type_supports( $this->post_type, $attribute ) ) {
continue;
}
switch ( $attribute ) {
case 'title':
$schema['properties']['title'] = array(
'description' => __( 'The title for the object.' ),
'type' => 'object',
'context' => array( 'view', 'edit', 'embed' ),
'arg_options' => array(
'sanitize_callback' => null, // Note: sanitization implemented in self::prepare_item_for_database()
),
'properties' => array(
'raw' => array(
'description' => __( 'Title for the object, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
'rendered' => array(
'description' => __( 'HTML title for the object, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
),
);
break;
case 'editor':
$schema['properties']['content'] = array(
'description' => __( 'The content for the object.' ),
'type' => 'object',
'context' => array( 'view', 'edit' ),
'arg_options' => array(
'sanitize_callback' => null, // Note: sanitization implemented in self::prepare_item_for_database()
),
'properties' => array(
'raw' => array(
'description' => __( 'Content for the object, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
'rendered' => array(
'description' => __( 'HTML content for the object, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'protected' => array(
'description' => __( 'Whether the content is protected with a password.' ),
'type' => 'boolean',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
),
);
break;
case 'author':
$schema['properties']['author'] = array(
'description' => __( 'The ID for the author of the object.' ),
'type' => 'integer',
'context' => array( 'view', 'edit', 'embed' ),
);
break;
case 'excerpt':
$schema['properties']['excerpt'] = array(
'description' => __( 'The excerpt for the object.' ),
'type' => 'object',
'context' => array( 'view', 'edit', 'embed' ),
'arg_options' => array(
'sanitize_callback' => null, // Note: sanitization implemented in self::prepare_item_for_database()
),
'properties' => array(
'raw' => array(
'description' => __( 'Excerpt for the object, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'edit' ),
),
'rendered' => array(
'description' => __( 'HTML excerpt for the object, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
'protected' => array(
'description' => __( 'Whether the excerpt is protected with a password.' ),
'type' => 'boolean',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
),
);
break;
case 'thumbnail':
$schema['properties']['featured_media'] = array(
'description' => __( 'The ID of the featured media for the object.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
break;
case 'comments':
$schema['properties']['comment_status'] = array(
'description' => __( 'Whether or not comments are open on the object.' ),
'type' => 'string',
'enum' => array( 'open', 'closed' ),
'context' => array( 'view', 'edit' ),
);
$schema['properties']['ping_status'] = array(
'description' => __( 'Whether or not the object can be pinged.' ),
'type' => 'string',
'enum' => array( 'open', 'closed' ),
'context' => array( 'view', 'edit' ),
);
break;
case 'page-attributes':
$schema['properties']['menu_order'] = array(
'description' => __( 'The order of the object in relation to other object of its type.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
break;
case 'post-formats':
// Get the native post formats and remove the array keys.
$formats = array_values( get_post_format_slugs() );
$schema['properties']['format'] = array(
'description' => __( 'The format for the object.' ),
'type' => 'string',
'enum' => $formats,
'context' => array( 'view', 'edit' ),
);
break;
case 'custom-fields':
$schema['properties']['meta'] = $this->meta->get_field_schema();
break;
}
}
if ( 'post' === $this->post_type ) {
$schema['properties']['sticky'] = array(
'description' => __( 'Whether or not the object should be treated as sticky.' ),
'type' => 'boolean',
'context' => array( 'view', 'edit' ),
);
}
$schema['properties']['template'] = array(
'description' => __( 'The theme file to use to display the object.' ),
'type' => 'string',
'enum' => array_merge( array_keys( wp_get_theme()->get_page_templates( null, $this->post_type ) ), array( '' ) ),
'context' => array( 'view', 'edit' ),
);
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
$schema['properties'][ $base ] = array(
/* translators: %s: taxonomy name */
'description' => sprintf( __( 'The terms assigned to the object in the %s taxonomy.' ), $taxonomy->name ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'context' => array( 'view', 'edit' ),
);
}
return $this->add_additional_fields_schema( $schema );
}
/**
* Retrieves the query params for the posts collection.
*
* @since 4.7.0
* @access public
*
* @return array Collection parameters.
*/
public function get_collection_params() {
$query_params = parent::get_collection_params();
$query_params['context']['default'] = 'view';
$query_params['after'] = array(
'description' => __( 'Limit response to posts published after a given ISO8601 compliant date.' ),
'type' => 'string',
'format' => 'date-time',
);
if ( post_type_supports( $this->post_type, 'author' ) ) {
$query_params['author'] = array(
'description' => __( 'Limit result set to posts assigned to specific authors.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
$query_params['author_exclude'] = array(
'description' => __( 'Ensure result set excludes posts assigned to specific authors.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
}
$query_params['before'] = array(
'description' => __( 'Limit response to posts published before a given ISO8601 compliant date.' ),
'type' => 'string',
'format' => 'date-time',
);
$query_params['exclude'] = array(
'description' => __( 'Ensure result set excludes specific IDs.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
$query_params['include'] = array(
'description' => __( 'Limit result set to specific IDs.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
if ( 'page' === $this->post_type || post_type_supports( $this->post_type, 'page-attributes' ) ) {
$query_params['menu_order'] = array(
'description' => __( 'Limit result set to posts with a specific menu_order value.' ),
'type' => 'integer',
);
}
$query_params['offset'] = array(
'description' => __( 'Offset the result set by a specific number of items.' ),
'type' => 'integer',
);
$query_params['order'] = array(
'description' => __( 'Order sort attribute ascending or descending.' ),
'type' => 'string',
'default' => 'desc',
'enum' => array( 'asc', 'desc' ),
);
$query_params['orderby'] = array(
'description' => __( 'Sort collection by object attribute.' ),
'type' => 'string',
'default' => 'date',
'enum' => array(
'date',
'relevance',
'id',
'include',
'title',
'slug',
),
);
if ( 'page' === $this->post_type || post_type_supports( $this->post_type, 'page-attributes' ) ) {
$query_params['orderby']['enum'][] = 'menu_order';
}
$post_type = get_post_type_object( $this->post_type );
if ( $post_type->hierarchical || 'attachment' === $this->post_type ) {
$query_params['parent'] = array(
'description' => __( 'Limit result set to those of particular parent IDs.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
$query_params['parent_exclude'] = array(
'description' => __( 'Limit result set to all items except those of a particular parent ID.' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
}
$query_params['slug'] = array(
'description' => __( 'Limit result set to posts with one or more specific slugs.' ),
'type' => 'array',
'items' => array(
'type' => 'string',
),
'sanitize_callback' => 'wp_parse_slug_list',
);
$query_params['status'] = array(
'default' => 'publish',
'description' => __( 'Limit result set to posts assigned one or more statuses.' ),
'type' => 'array',
'items' => array(
'enum' => array_merge( array_keys( get_post_stati() ), array( 'any' ) ),
'type' => 'string',
),
'sanitize_callback' => array( $this, 'sanitize_post_statuses' ),
);
$taxonomies = wp_list_filter( get_object_taxonomies( $this->post_type, 'objects' ), array( 'show_in_rest' => true ) );
foreach ( $taxonomies as $taxonomy ) {
$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
$query_params[ $base ] = array(
/* translators: %s: taxonomy name */
'description' => sprintf( __( 'Limit result set to all items that have the specified term assigned in the %s taxonomy.' ), $base ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
$query_params[ $base . '_exclude' ] = array(
/* translators: %s: taxonomy name */
'description' => sprintf( __( 'Limit result set to all items except those that have the specified term assigned in the %s taxonomy.' ), $base ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
);
}
if ( 'post' === $this->post_type ) {
$query_params['sticky'] = array(
'description' => __( 'Limit result set to items that are sticky.' ),
'type' => 'boolean',
);
}
/**
* Filter collection parameters for the posts controller.
*
* The dynamic part of the filter `$this->post_type` refers to the post
* type slug for the controller.
*
* This filter registers the collection parameter, but does not map the
* collection parameter to an internal WP_Query parameter. Use the
* `rest_{$this->post_type}_query` filter to set WP_Query parameters.
*
* @since 4.7.0
*
* @param array $query_params JSON Schema-formatted collection parameters.
* @param WP_Post_Type $post_type Post type object.
*/
return apply_filters( "rest_{$this->post_type}_collection_params", $query_params, $post_type );
}
/**
* Sanitizes and validates the list of post statuses, including whether the
* user can query private statuses.
*
* @since 4.7.0
* @access public
*
* @param string|array $statuses One or more post statuses.
* @param WP_REST_Request $request Full details about the request.
* @param string $parameter Additional parameter to pass to validation.
* @return array|WP_Error A list of valid statuses, otherwise WP_Error object.
*/
public function sanitize_post_statuses( $statuses, $request, $parameter ) {
$statuses = wp_parse_slug_list( $statuses );
// The default status is different in WP_REST_Attachments_Controller
$attributes = $request->get_attributes();
$default_status = $attributes['args']['status']['default'];
foreach ( $statuses as $status ) {
if ( $status === $default_status ) {
continue;
}
$post_type_obj = get_post_type_object( $this->post_type );
if ( current_user_can( $post_type_obj->cap->edit_posts ) ) {
$result = rest_validate_request_arg( $status, $request, $parameter );
if ( is_wp_error( $result ) ) {
return $result;
}
} else {
return new WP_Error( 'rest_forbidden_status', __( 'Status is forbidden.' ), array( 'status' => rest_authorization_required_code() ) );
}
}
return $statuses;
}
}
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