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WordPress/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php
K. Adam White 30827e4a4f REST API: Support ordering response collection by listed slugs. 
Adds an "include_slug" orderby value for REST API collections to permit returning a collection filtered by slugs in the same order in which those slugs are specified.
Previously, the order of slugs provided with the ?slug query parameter had no effect on the order of the returned records.

Props wonderboymusic, ocean90, boonebgorges.
Fixes #40826.


Built from https://develop.svn.wordpress.org/trunk@41760


git-svn-id: http://core.svn.wordpress.org/trunk@41594 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2017-10-05 00:37:47 +00:00

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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
* @var string
*/
protected $post_type;
/**
* Instance of a post meta fields object.
*
* @since 4.7.0
* @var WP_REST_Post_Meta_Fields
*/
protected $meta;
/**
* Constructor.
*
* @since 4.7.0
*
* @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
*
* @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
*
* @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
*
* @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', __( 'You need to define an include parameter to order by 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'] );
if ( $page > $max_pages && $total_posts > 0 ) {
return new WP_Error( 'rest_post_invalid_page_number', __( 'The page number requested is larger than the number of pages available.' ), array( 'status' => 400 ) );
}
$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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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( $post_id );
/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php */
do_action( "rest_insert_{$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
*
* @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
*
* @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 ) {
/* translators: %s: force=true */
return new WP_Error( 'rest_trash_not_supported', sprintf( __( "The post does not support trashing. Set '%s' to delete." ), 'force=true' ), 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
*
* @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',
'include_slugs' => 'post_name__in',
);
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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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
*
* @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, $post->ID ),
'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.
*
* @since 4.7.0
*
* @return string Protected title format.
*/
public function protected_title_format() {
return '%s';
}
/**
* Prepares links for the request.
*
* @since 4.7.0
*
* @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
*
* @return array Item schema data.
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/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()
'validate_callback' => null, // Note: validation 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()
'validate_callback' => null, // Note: validation 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()
'validate_callback' => null, // Note: validation 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', 'embed' ),
);
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
*
* @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(
'author',
'date',
'id',
'include',
'modified',
'parent',
'relevance',
'slug',
'include_slugs',
'title',
),
);
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 items with 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
*
* @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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