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- <?php
- /**
- * REST API: WP_REST_Taxonomies_Controller class
- *
- * @package WordPress
- * @subpackage REST_API
- * @since 4.7.0
- */
- /**
- * Core class used to manage taxonomies via the REST API.
- *
- * @since 4.7.0
- *
- * @see WP_REST_Controller
- */
- class WP_REST_Taxonomies_Controller extends WP_REST_Controller {
- /**
- * Constructor.
- *
- * @since 4.7.0
- */
- public function __construct() {
- $this->namespace = 'wp/v2';
- $this->rest_base = 'taxonomies';
- }
- /**
- * Registers the routes for taxonomies.
- *
- * @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(),
- ),
- 'schema' => array( $this, 'get_public_item_schema' ),
- )
- );
- register_rest_route(
- $this->namespace,
- '/' . $this->rest_base . '/(?P<taxonomy>[\w-]+)',
- array(
- 'args' => array(
- 'taxonomy' => array(
- 'description' => __( 'An alphanumeric identifier for the taxonomy.' ),
- 'type' => 'string',
- ),
- ),
- array(
- 'methods' => WP_REST_Server::READABLE,
- 'callback' => array( $this, 'get_item' ),
- 'permission_callback' => array( $this, 'get_item_permissions_check' ),
- 'args' => array(
- 'context' => $this->get_context_param( array( 'default' => 'view' ) ),
- ),
- ),
- 'schema' => array( $this, 'get_public_item_schema' ),
- )
- );
- }
- /**
- * Checks whether a given request has permission to read taxonomies.
- *
- * @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 ) {
- if ( 'edit' === $request['context'] ) {
- if ( ! empty( $request['type'] ) ) {
- $taxonomies = get_object_taxonomies( $request['type'], 'objects' );
- } else {
- $taxonomies = get_taxonomies( '', 'objects' );
- }
- foreach ( $taxonomies as $taxonomy ) {
- if ( ! empty( $taxonomy->show_in_rest ) && current_user_can( $taxonomy->cap->assign_terms ) ) {
- return true;
- }
- }
- return new WP_Error(
- 'rest_cannot_view',
- __( 'Sorry, you are not allowed to manage terms in this taxonomy.' ),
- array( 'status' => rest_authorization_required_code() )
- );
- }
- return true;
- }
- /**
- * Retrieves all public taxonomies.
- *
- * @since 4.7.0
- *
- * @param WP_REST_Request $request Full details about the request.
- * @return WP_REST_Response Response object on success, or WP_Error object on failure.
- */
- public function get_items( $request ) {
- // Retrieve the list of registered collection query parameters.
- $registered = $this->get_collection_params();
- if ( isset( $registered['type'] ) && ! empty( $request['type'] ) ) {
- $taxonomies = get_object_taxonomies( $request['type'], 'objects' );
- } else {
- $taxonomies = get_taxonomies( '', 'objects' );
- }
- $data = array();
- foreach ( $taxonomies as $tax_type => $value ) {
- if ( empty( $value->show_in_rest ) || ( 'edit' === $request['context'] && ! current_user_can( $value->cap->assign_terms ) ) ) {
- continue;
- }
- $tax = $this->prepare_item_for_response( $value, $request );
- $tax = $this->prepare_response_for_collection( $tax );
- $data[ $tax_type ] = $tax;
- }
- if ( empty( $data ) ) {
- // Response should still be returned as a JSON object when it is empty.
- $data = (object) $data;
- }
- return rest_ensure_response( $data );
- }
- /**
- * Checks if a given request has access to a taxonomy.
- *
- * @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 for the item, otherwise false or WP_Error object.
- */
- public function get_item_permissions_check( $request ) {
- $tax_obj = get_taxonomy( $request['taxonomy'] );
- if ( $tax_obj ) {
- if ( empty( $tax_obj->show_in_rest ) ) {
- return false;
- }
- if ( 'edit' === $request['context'] && ! current_user_can( $tax_obj->cap->assign_terms ) ) {
- return new WP_Error(
- 'rest_forbidden_context',
- __( 'Sorry, you are not allowed to manage terms in this taxonomy.' ),
- array( 'status' => rest_authorization_required_code() )
- );
- }
- }
- return true;
- }
- /**
- * Retrieves a specific taxonomy.
- *
- * @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 ) {
- $tax_obj = get_taxonomy( $request['taxonomy'] );
- if ( empty( $tax_obj ) ) {
- return new WP_Error(
- 'rest_taxonomy_invalid',
- __( 'Invalid taxonomy.' ),
- array( 'status' => 404 )
- );
- }
- $data = $this->prepare_item_for_response( $tax_obj, $request );
- return rest_ensure_response( $data );
- }
- /**
- * Prepares a taxonomy object for serialization.
- *
- * @since 4.7.0
- * @since 5.9.0 Renamed `$taxonomy` to `$item` to match parent class for PHP 8 named parameter support.
- *
- * @param WP_Taxonomy $item Taxonomy data.
- * @param WP_REST_Request $request Full details about the request.
- * @return WP_REST_Response Response object.
- */
- public function prepare_item_for_response( $item, $request ) {
- // Restores the more descriptive, specific name for use within this method.
- $taxonomy = $item;
- $base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
- $fields = $this->get_fields_for_response( $request );
- $data = array();
- if ( in_array( 'name', $fields, true ) ) {
- $data['name'] = $taxonomy->label;
- }
- if ( in_array( 'slug', $fields, true ) ) {
- $data['slug'] = $taxonomy->name;
- }
- if ( in_array( 'capabilities', $fields, true ) ) {
- $data['capabilities'] = $taxonomy->cap;
- }
- if ( in_array( 'description', $fields, true ) ) {
- $data['description'] = $taxonomy->description;
- }
- if ( in_array( 'labels', $fields, true ) ) {
- $data['labels'] = $taxonomy->labels;
- }
- if ( in_array( 'types', $fields, true ) ) {
- $data['types'] = array_values( $taxonomy->object_type );
- }
- if ( in_array( 'show_cloud', $fields, true ) ) {
- $data['show_cloud'] = $taxonomy->show_tagcloud;
- }
- if ( in_array( 'hierarchical', $fields, true ) ) {
- $data['hierarchical'] = $taxonomy->hierarchical;
- }
- if ( in_array( 'rest_base', $fields, true ) ) {
- $data['rest_base'] = $base;
- }
- if ( in_array( 'rest_namespace', $fields, true ) ) {
- $data['rest_namespace'] = $taxonomy->rest_namespace;
- }
- if ( in_array( 'visibility', $fields, true ) ) {
- $data['visibility'] = array(
- 'public' => (bool) $taxonomy->public,
- 'publicly_queryable' => (bool) $taxonomy->publicly_queryable,
- 'show_admin_column' => (bool) $taxonomy->show_admin_column,
- 'show_in_nav_menus' => (bool) $taxonomy->show_in_nav_menus,
- 'show_in_quick_edit' => (bool) $taxonomy->show_in_quick_edit,
- 'show_ui' => (bool) $taxonomy->show_ui,
- );
- }
- $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 );
- if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
- $response->add_links( $this->prepare_links( $taxonomy ) );
- }
- /**
- * Filters a taxonomy returned from the REST API.
- *
- * Allows modification of the taxonomy data right before it is returned.
- *
- * @since 4.7.0
- *
- * @param WP_REST_Response $response The response object.
- * @param WP_Taxonomy $item The original taxonomy object.
- * @param WP_REST_Request $request Request used to generate the response.
- */
- return apply_filters( 'rest_prepare_taxonomy', $response, $taxonomy, $request );
- }
- /**
- * Prepares links for the request.
- *
- * @since 6.1.0
- *
- * @param WP_Taxonomy $taxonomy The taxonomy.
- * @return array Links for the given taxonomy.
- */
- protected function prepare_links( $taxonomy ) {
- return array(
- 'collection' => array(
- 'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
- ),
- 'https://api.w.org/items' => array(
- 'href' => rest_url( rest_get_route_for_taxonomy_items( $taxonomy->name ) ),
- ),
- );
- }
- /**
- * Retrieves the taxonomy's schema, conforming to JSON Schema.
- *
- * @since 4.7.0
- * @since 5.0.0 The `visibility` property was added.
- * @since 5.9.0 The `rest_namespace` property was added.
- *
- * @return array Item schema data.
- */
- public function get_item_schema() {
- if ( $this->schema ) {
- return $this->add_additional_fields_schema( $this->schema );
- }
- $schema = array(
- '$schema' => 'http://json-schema.org/draft-04/schema#',
- 'title' => 'taxonomy',
- 'type' => 'object',
- 'properties' => array(
- 'capabilities' => array(
- 'description' => __( 'All capabilities used by the taxonomy.' ),
- 'type' => 'object',
- 'context' => array( 'edit' ),
- 'readonly' => true,
- ),
- 'description' => array(
- 'description' => __( 'A human-readable description of the taxonomy.' ),
- 'type' => 'string',
- 'context' => array( 'view', 'edit' ),
- 'readonly' => true,
- ),
- 'hierarchical' => array(
- 'description' => __( 'Whether or not the taxonomy should have children.' ),
- 'type' => 'boolean',
- 'context' => array( 'view', 'edit' ),
- 'readonly' => true,
- ),
- 'labels' => array(
- 'description' => __( 'Human-readable labels for the taxonomy for various contexts.' ),
- 'type' => 'object',
- 'context' => array( 'edit' ),
- 'readonly' => true,
- ),
- 'name' => array(
- 'description' => __( 'The title for the taxonomy.' ),
- 'type' => 'string',
- 'context' => array( 'view', 'edit', 'embed' ),
- 'readonly' => true,
- ),
- 'slug' => array(
- 'description' => __( 'An alphanumeric identifier for the taxonomy.' ),
- 'type' => 'string',
- 'context' => array( 'view', 'edit', 'embed' ),
- 'readonly' => true,
- ),
- 'show_cloud' => array(
- 'description' => __( 'Whether or not the term cloud should be displayed.' ),
- 'type' => 'boolean',
- 'context' => array( 'edit' ),
- 'readonly' => true,
- ),
- 'types' => array(
- 'description' => __( 'Types associated with the taxonomy.' ),
- 'type' => 'array',
- 'items' => array(
- 'type' => 'string',
- ),
- 'context' => array( 'view', 'edit' ),
- 'readonly' => true,
- ),
- 'rest_base' => array(
- 'description' => __( 'REST base route for the taxonomy.' ),
- 'type' => 'string',
- 'context' => array( 'view', 'edit', 'embed' ),
- 'readonly' => true,
- ),
- 'rest_namespace' => array(
- 'description' => __( 'REST namespace route for the taxonomy.' ),
- 'type' => 'string',
- 'context' => array( 'view', 'edit', 'embed' ),
- 'readonly' => true,
- ),
- 'visibility' => array(
- 'description' => __( 'The visibility settings for the taxonomy.' ),
- 'type' => 'object',
- 'context' => array( 'edit' ),
- 'readonly' => true,
- 'properties' => array(
- 'public' => array(
- 'description' => __( 'Whether a taxonomy is intended for use publicly either via the admin interface or by front-end users.' ),
- 'type' => 'boolean',
- ),
- 'publicly_queryable' => array(
- 'description' => __( 'Whether the taxonomy is publicly queryable.' ),
- 'type' => 'boolean',
- ),
- 'show_ui' => array(
- 'description' => __( 'Whether to generate a default UI for managing this taxonomy.' ),
- 'type' => 'boolean',
- ),
- 'show_admin_column' => array(
- 'description' => __( 'Whether to allow automatic creation of taxonomy columns on associated post-types table.' ),
- 'type' => 'boolean',
- ),
- 'show_in_nav_menus' => array(
- 'description' => __( 'Whether to make the taxonomy available for selection in navigation menus.' ),
- 'type' => 'boolean',
- ),
- 'show_in_quick_edit' => array(
- 'description' => __( 'Whether to show the taxonomy in the quick/bulk edit panel.' ),
- 'type' => 'boolean',
- ),
- ),
- ),
- ),
- );
- $this->schema = $schema;
- return $this->add_additional_fields_schema( $this->schema );
- }
- /**
- * Retrieves the query params for collections.
- *
- * @since 4.7.0
- *
- * @return array Collection parameters.
- */
- public function get_collection_params() {
- $new_params = array();
- $new_params['context'] = $this->get_context_param( array( 'default' => 'view' ) );
- $new_params['type'] = array(
- 'description' => __( 'Limit results to taxonomies associated with a specific post type.' ),
- 'type' => 'string',
- );
- return $new_params;
- }
- }
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