360 lines
11 KiB
PHP
360 lines
11 KiB
PHP
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<?php
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/**
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* REST API: WP_REST_Taxonomies_Controller class
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*
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* @package WordPress
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* @subpackage REST_API
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* @since 4.7.0
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*/
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/**
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* Core class used to manage taxonomies via the REST API.
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*
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* @since 4.7.0
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*
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* @see WP_REST_Controller
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*/
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class WP_REST_Taxonomies_Controller extends WP_REST_Controller {
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/**
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* Constructor.
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*
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* @since 4.7.0
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*/
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public function __construct() {
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$this->namespace = 'wp/v2';
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$this->rest_base = 'taxonomies';
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}
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/**
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* Registers the routes for the objects of the controller.
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*
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* @since 4.7.0
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*
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* @see register_rest_route()
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*/
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public function register_routes() {
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register_rest_route( $this->namespace, '/' . $this->rest_base, array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_items' ),
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'permission_callback' => array( $this, 'get_items_permissions_check' ),
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'args' => $this->get_collection_params(),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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) );
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register_rest_route( $this->namespace, '/' . $this->rest_base . '/(?P<taxonomy>[\w-]+)', array(
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'args' => array(
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'taxonomy' => array(
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'description' => __( 'An alphanumeric identifier for the taxonomy.' ),
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'type' => 'string',
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),
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),
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_item' ),
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'permission_callback' => array( $this, 'get_item_permissions_check' ),
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'args' => array(
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'context' => $this->get_context_param( array( 'default' => 'view' ) ),
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),
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),
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'schema' => array( $this, 'get_public_item_schema' ),
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) );
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}
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/**
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* Checks whether a given request has permission to read taxonomies.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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public function get_items_permissions_check( $request ) {
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if ( 'edit' === $request['context'] ) {
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if ( ! empty( $request['type'] ) ) {
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$taxonomies = get_object_taxonomies( $request['type'], 'objects' );
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} else {
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$taxonomies = get_taxonomies( '', 'objects' );
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}
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foreach ( $taxonomies as $taxonomy ) {
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if ( ! empty( $taxonomy->show_in_rest ) && current_user_can( $taxonomy->cap->assign_terms ) ) {
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return true;
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}
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}
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return new WP_Error( 'rest_cannot_view', __( 'Sorry, you are not allowed to manage terms in this taxonomy.' ), array( 'status' => rest_authorization_required_code() ) );
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}
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return true;
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}
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/**
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* Retrieves all public taxonomies.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response Response object on success, or WP_Error object on failure.
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*/
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public function get_items( $request ) {
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// Retrieve the list of registered collection query parameters.
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$registered = $this->get_collection_params();
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if ( isset( $registered['type'] ) && ! empty( $request['type'] ) ) {
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$taxonomies = get_object_taxonomies( $request['type'], 'objects' );
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} else {
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$taxonomies = get_taxonomies( '', 'objects' );
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}
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$data = array();
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foreach ( $taxonomies as $tax_type => $value ) {
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if ( empty( $value->show_in_rest ) || ( 'edit' === $request['context'] && ! current_user_can( $value->cap->assign_terms ) ) ) {
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continue;
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}
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$tax = $this->prepare_item_for_response( $value, $request );
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$tax = $this->prepare_response_for_collection( $tax );
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$data[ $tax_type ] = $tax;
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}
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if ( empty( $data ) ) {
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// Response should still be returned as a JSON object when it is empty.
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$data = (object) $data;
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}
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return rest_ensure_response( $data );
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}
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/**
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* Checks if a given request has access to a taxonomy.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return true|WP_Error True if the request has read access for the item, otherwise false or WP_Error object.
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*/
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public function get_item_permissions_check( $request ) {
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$tax_obj = get_taxonomy( $request['taxonomy'] );
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if ( $tax_obj ) {
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if ( empty( $tax_obj->show_in_rest ) ) {
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return false;
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}
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if ( 'edit' === $request['context'] && ! current_user_can( $tax_obj->cap->assign_terms ) ) {
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return new WP_Error( 'rest_forbidden_context', __( 'Sorry, you are not allowed to manage terms in this taxonomy.' ), array( 'status' => rest_authorization_required_code() ) );
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}
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}
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return true;
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}
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/**
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* Retrieves a specific taxonomy.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
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*/
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public function get_item( $request ) {
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$tax_obj = get_taxonomy( $request['taxonomy'] );
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if ( empty( $tax_obj ) ) {
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return new WP_Error( 'rest_taxonomy_invalid', __( 'Invalid taxonomy.' ), array( 'status' => 404 ) );
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}
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$data = $this->prepare_item_for_response( $tax_obj, $request );
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return rest_ensure_response( $data );
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}
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/**
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* Prepares a taxonomy object for serialization.
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*
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* @since 4.7.0
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*
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* @param stdClass $taxonomy Taxonomy data.
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_REST_Response Response object.
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*/
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public function prepare_item_for_response( $taxonomy, $request ) {
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$base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
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$fields = $this->get_fields_for_response( $request );
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$data = array();
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if ( in_array( 'name', $fields, true ) ) {
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$data['name'] = $taxonomy->label;
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}
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if ( in_array( 'slug', $fields, true ) ) {
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$data['slug'] = $taxonomy->name;
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}
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if ( in_array( 'capabilities', $fields, true ) ) {
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$data['capabilities'] = $taxonomy->cap;
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}
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if ( in_array( 'description', $fields, true ) ) {
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$data['description'] = $taxonomy->description;
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}
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if ( in_array( 'labels', $fields, true ) ) {
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$data['labels'] = $taxonomy->labels;
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}
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if ( in_array( 'types', $fields, true ) ) {
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$data['types'] = $taxonomy->object_type;
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}
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if ( in_array( 'show_cloud', $fields, true ) ) {
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$data['show_cloud'] = $taxonomy->show_tagcloud;
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}
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if ( in_array( 'hierarchical', $fields, true ) ) {
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$data['hierarchical'] = $taxonomy->hierarchical;
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}
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if ( in_array( 'rest_base', $fields, true ) ) {
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$data['rest_base'] = $base;
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}
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if ( in_array( 'visibility', $fields, true ) ) {
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$data['visibility'] = array(
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'public' => (bool) $taxonomy->public,
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'publicly_queryable' => (bool) $taxonomy->publicly_queryable,
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'show_admin_column' => (bool) $taxonomy->show_admin_column,
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'show_in_nav_menus' => (bool) $taxonomy->show_in_nav_menus,
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'show_in_quick_edit' => (bool) $taxonomy->show_in_quick_edit,
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'show_ui' => (bool) $taxonomy->show_ui,
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);
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}
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->add_additional_fields_to_object( $data, $request );
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$data = $this->filter_response_by_context( $data, $context );
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// Wrap the data in a response object.
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$response = rest_ensure_response( $data );
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$response->add_links( array(
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'collection' => array(
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'href' => rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ),
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),
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'https://api.w.org/items' => array(
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'href' => rest_url( sprintf( 'wp/v2/%s', $base ) ),
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),
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) );
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/**
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* Filters a taxonomy returned from the REST API.
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*
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* Allows modification of the taxonomy data right before it is returned.
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*
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* @since 4.7.0
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*
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* @param WP_REST_Response $response The response object.
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* @param object $item The original taxonomy object.
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* @param WP_REST_Request $request Request used to generate the response.
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*/
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return apply_filters( 'rest_prepare_taxonomy', $response, $taxonomy, $request );
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}
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/**
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* Retrieves the taxonomy's schema, conforming to JSON Schema.
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*
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* @since 4.7.0
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*
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* @return array Item schema data.
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*/
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public function get_item_schema() {
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$schema = array(
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'$schema' => 'http://json-schema.org/draft-04/schema#',
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'title' => 'taxonomy',
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'type' => 'object',
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'properties' => array(
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'capabilities' => array(
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'description' => __( 'All capabilities used by the taxonomy.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'description' => array(
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'description' => __( 'A human-readable description of the taxonomy.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'hierarchical' => array(
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'description' => __( 'Whether or not the taxonomy should have children.' ),
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'type' => 'boolean',
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'labels' => array(
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'description' => __( 'Human-readable labels for the taxonomy for various contexts.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'name' => array(
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'description' => __( 'The title for the taxonomy.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'slug' => array(
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'description' => __( 'An alphanumeric identifier for the taxonomy.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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'show_cloud' => array(
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'description' => __( 'Whether or not the term cloud should be displayed.' ),
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'type' => 'boolean',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'types' => array(
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'description' => __( 'Types associated with the taxonomy.' ),
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'type' => 'array',
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'items' => array(
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'type' => 'string',
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),
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'context' => array( 'view', 'edit' ),
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'readonly' => true,
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),
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'visibility' => array(
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'description' => __( 'The visibility settings for the taxonomy.' ),
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'type' => 'object',
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'context' => array( 'edit' ),
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'readonly' => true,
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),
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'rest_base' => array(
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'description' => __( 'REST base route for the taxonomy.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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),
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),
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);
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return $this->add_additional_fields_schema( $schema );
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}
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/**
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* Retrieves the query params for collections.
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*
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* @since 4.7.0
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*
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* @return array Collection parameters.
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*/
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public function get_collection_params() {
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$new_params = array();
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$new_params['context'] = $this->get_context_param( array( 'default' => 'view' ) );
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$new_params['type'] = array(
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'description' => __( 'Limit results to taxonomies associated with a specific post type.' ),
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'type' => 'string',
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);
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return $new_params;
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}
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}
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