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<?php
/**
* REST API: WP_REST_Terms_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 4.7.0
*/
/**
* Core class used to managed terms associated with a taxonomy via the REST API.
*
* @since 4.7.0
*
* @see WP_REST_Controller
*/
class WP_REST_Terms_Controller extends WP_REST_Controller {
/**
* Taxonomy key.
*
* @since 4.7.0
* @var string
*/
protected $taxonomy;
/**
* Instance of a term meta fields object.
*
* @since 4.7.0
* @var WP_REST_Term_Meta_Fields
*/
protected $meta;
/**
* Column to have the terms be sorted by.
*
* @since 4.7.0
* @var string
*/
protected $sort_column;
/**
* Number of terms that were found.
*
* @since 4.7.0
* @var int
*/
protected $total_terms;
/**
* Whether the controller supports batching.
*
* @since 5.9.0
* @var array
*/
protected $allow_batch = array( 'v1' => true );
/**
* Constructor.
*
* @since 4.7.0
*
* @param string $taxonomy Taxonomy key.
*/
public function __construct( $taxonomy ) {
$this->taxonomy = $taxonomy;
$tax_obj = get_taxonomy( $taxonomy );
$this->rest_base = ! empty( $tax_obj->rest_base ) ? $tax_obj->rest_base : $tax_obj->name;
$this->namespace = ! empty( $tax_obj->rest_namespace ) ? $tax_obj->rest_namespace : 'wp/v2';
$this->meta = new WP_REST_Term_Meta_Fields( $taxonomy );
}
/**
* Registers the routes for terms.
*
* @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 ),
),
'allow_batch' => $this->allow_batch,
'schema' => array( $this, 'get_public_item_schema' ),
)
);
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P<id>[\d]+)',
array(
'args' => array(
'id' => array(
'description' => __( 'Unique identifier for the term.' ),
'type' => 'integer',
),
),
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' ) ),
),
),
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' => __( 'Required to be true, as terms do not support trashing.' ),
),
),
),
'allow_batch' => $this->allow_batch,
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Checks if a request has access to read terms in the specified 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, otherwise false or WP_Error object.
*/
public function get_items_permissions_check( $request ) {
$tax_obj = get_taxonomy( $this->taxonomy );
if ( ! $tax_obj || ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
return false;
}
if ( 'edit' === $request['context'] && ! current_user_can( $tax_obj->cap->edit_terms ) ) {
return new WP_Error(
'rest_forbidden_context',
__( 'Sorry, you are not allowed to edit terms in this taxonomy.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Retrieves terms associated with a 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_items( $request ) {
// Retrieve the list of registered collection query parameters.
$registered = $this->get_collection_params();
/*
* 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(
'exclude' => 'exclude',
'include' => 'include',
'order' => 'order',
'orderby' => 'orderby',
'post' => 'post',
'hide_empty' => 'hide_empty',
'per_page' => 'number',
'search' => 'search',
'slug' => 'slug',
);
$prepared_args = array( 'taxonomy' => $this->taxonomy );
/*
* For each known parameter which is both registered and present in the request,
* set the parameter's value on the query $prepared_args.
*/
foreach ( $parameter_mappings as $api_param => $wp_param ) {
if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {
$prepared_args[ $wp_param ] = $request[ $api_param ];
}
}
if ( isset( $prepared_args['orderby'] ) && isset( $request['orderby'] ) ) {
$orderby_mappings = array(
'include_slugs' => 'slug__in',
);
if ( isset( $orderby_mappings[ $request['orderby'] ] ) ) {
$prepared_args['orderby'] = $orderby_mappings[ $request['orderby'] ];
}
}
if ( isset( $registered['offset'] ) && ! empty( $request['offset'] ) ) {
$prepared_args['offset'] = $request['offset'];
} else {
$prepared_args['offset'] = ( $request['page'] - 1 ) * $prepared_args['number'];
}
$taxonomy_obj = get_taxonomy( $this->taxonomy );
if ( $taxonomy_obj->hierarchical && isset( $registered['parent'], $request['parent'] ) ) {
if ( 0 === $request['parent'] ) {
// Only query top-level terms.
$prepared_args['parent'] = 0;
} else {
if ( $request['parent'] ) {
$prepared_args['parent'] = $request['parent'];
}
}
}
/**
* Filters get_terms() arguments when querying terms via the REST API.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_category_query`
* - `rest_post_tag_query`
*
* Enables adding extra arguments or setting defaults for a terms
* collection request.
*
* @since 4.7.0
*
* @link https://developer.wordpress.org/reference/functions/get_terms/
*
* @param array $prepared_args Array of arguments for get_terms().
* @param WP_REST_Request $request The REST API request.
*/
$prepared_args = apply_filters( "rest_{$this->taxonomy}_query", $prepared_args, $request );
if ( ! empty( $prepared_args['post'] ) ) {
$query_result = wp_get_object_terms( $prepared_args['post'], $this->taxonomy, $prepared_args );
// Used when calling wp_count_terms() below.
$prepared_args['object_ids'] = $prepared_args['post'];
} else {
$query_result = get_terms( $prepared_args );
}
$count_args = $prepared_args;
unset( $count_args['number'], $count_args['offset'] );
$total_terms = wp_count_terms( $count_args );
// wp_count_terms() can return a falsey value when the term has no children.
if ( ! $total_terms ) {
$total_terms = 0;
}
$response = array();
foreach ( $query_result as $term ) {
$data = $this->prepare_item_for_response( $term, $request );
$response[] = $this->prepare_response_for_collection( $data );
}
$response = rest_ensure_response( $response );
// Store pagination values for headers.
$per_page = (int) $prepared_args['number'];
$page = ceil( ( ( (int) $prepared_args['offset'] ) / $per_page ) + 1 );
$response->header( 'X-WP-Total', (int) $total_terms );
$max_pages = ceil( $total_terms / $per_page );
$response->header( 'X-WP-TotalPages', (int) $max_pages );
$base = add_query_arg( urlencode_deep( $request->get_query_params() ), rest_url( $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 term, if the ID is valid.
*
* @since 4.7.2
*
* @param int $id Supplied ID.
* @return WP_Term|WP_Error Term object if ID is valid, WP_Error otherwise.
*/
protected function get_term( $id ) {
$error = new WP_Error(
'rest_term_invalid',
__( 'Term does not exist.' ),
array( 'status' => 404 )
);
if ( ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
return $error;
}
if ( (int) $id <= 0 ) {
return $error;
}
$term = get_term( (int) $id, $this->taxonomy );
if ( empty( $term ) || $term->taxonomy !== $this->taxonomy ) {
return $error;
}
return $term;
}
/**
* Checks if a request has access to read or edit the specified term.
*
* @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 ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( 'edit' === $request['context'] && ! current_user_can( 'edit_term', $term->term_id ) ) {
return new WP_Error(
'rest_forbidden_context',
__( 'Sorry, you are not allowed to edit this term.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Gets a single term from a 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 ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
$response = $this->prepare_item_for_response( $term, $request );
return rest_ensure_response( $response );
}
/**
* Checks if a request has access to create a term.
*
* @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, false or WP_Error object otherwise.
*/
public function create_item_permissions_check( $request ) {
if ( ! $this->check_is_taxonomy_allowed( $this->taxonomy ) ) {
return false;
}
$taxonomy_obj = get_taxonomy( $this->taxonomy );
if ( ( is_taxonomy_hierarchical( $this->taxonomy )
&& ! current_user_can( $taxonomy_obj->cap->edit_terms ) )
|| ( ! is_taxonomy_hierarchical( $this->taxonomy )
&& ! current_user_can( $taxonomy_obj->cap->assign_terms ) ) ) {
return new WP_Error(
'rest_cannot_create',
__( 'Sorry, you are not allowed to create terms in this taxonomy.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Creates a single term in a 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 create_item( $request ) {
if ( isset( $request['parent'] ) ) {
if ( ! is_taxonomy_hierarchical( $this->taxonomy ) ) {
return new WP_Error(
'rest_taxonomy_not_hierarchical',
__( 'Cannot set parent term, taxonomy is not hierarchical.' ),
array( 'status' => 400 )
);
}
$parent = get_term( (int) $request['parent'], $this->taxonomy );
if ( ! $parent ) {
return new WP_Error(
'rest_term_invalid',
__( 'Parent term does not exist.' ),
array( 'status' => 400 )
);
}
}
$prepared_term = $this->prepare_item_for_database( $request );
$term = wp_insert_term( wp_slash( $prepared_term->name ), $this->taxonomy, wp_slash( (array) $prepared_term ) );
if ( is_wp_error( $term ) ) {
/*
* If we're going to inform the client that the term already exists,
* give them the identifier for future use.
*/
$term_id = $term->get_error_data( 'term_exists' );
if ( $term_id ) {
$existing_term = get_term( $term_id, $this->taxonomy );
$term->add_data( $existing_term->term_id, 'term_exists' );
$term->add_data(
array(
'status' => 400,
'term_id' => $term_id,
)
);
}
return $term;
}
$term = get_term( $term['term_id'], $this->taxonomy );
/**
* Fires after a single term is created or updated via the REST API.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_insert_category`
* - `rest_insert_post_tag`
*
* @since 4.7.0
*
* @param WP_Term $term Inserted or updated term object.
* @param WP_REST_Request $request Request object.
* @param bool $creating True when creating a term, false when updating.
*/
do_action( "rest_insert_{$this->taxonomy}", $term, $request, true );
$schema = $this->get_item_schema();
if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
$meta_update = $this->meta->update_value( $request['meta'], $term->term_id );
if ( is_wp_error( $meta_update ) ) {
return $meta_update;
}
}
$fields_update = $this->update_additional_fields_for_object( $term, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$request->set_param( 'context', 'edit' );
/**
* Fires after a single term is completely created or updated via the REST API.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_after_insert_category`
* - `rest_after_insert_post_tag`
*
* @since 5.0.0
*
* @param WP_Term $term Inserted or updated term object.
* @param WP_REST_Request $request Request object.
* @param bool $creating True when creating a term, false when updating.
*/
do_action( "rest_after_insert_{$this->taxonomy}", $term, $request, true );
$response = $this->prepare_item_for_response( $term, $request );
$response = rest_ensure_response( $response );
$response->set_status( 201 );
$response->header( 'Location', rest_url( $this->namespace . '/' . $this->rest_base . '/' . $term->term_id ) );
return $response;
}
/**
* Checks if a request has access to update the specified term.
*
* @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, false or WP_Error object otherwise.
*/
public function update_item_permissions_check( $request ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! current_user_can( 'edit_term', $term->term_id ) ) {
return new WP_Error(
'rest_cannot_update',
__( 'Sorry, you are not allowed to edit this term.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Updates a single term from a 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 update_item( $request ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( isset( $request['parent'] ) ) {
if ( ! is_taxonomy_hierarchical( $this->taxonomy ) ) {
return new WP_Error(
'rest_taxonomy_not_hierarchical',
__( 'Cannot set parent term, taxonomy is not hierarchical.' ),
array( 'status' => 400 )
);
}
$parent = get_term( (int) $request['parent'], $this->taxonomy );
if ( ! $parent ) {
return new WP_Error(
'rest_term_invalid',
__( 'Parent term does not exist.' ),
array( 'status' => 400 )
);
}
}
$prepared_term = $this->prepare_item_for_database( $request );
// Only update the term if we have something to update.
if ( ! empty( $prepared_term ) ) {
$update = wp_update_term( $term->term_id, $term->taxonomy, wp_slash( (array) $prepared_term ) );
if ( is_wp_error( $update ) ) {
return $update;
}
}
$term = get_term( $term->term_id, $this->taxonomy );
/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
do_action( "rest_insert_{$this->taxonomy}", $term, $request, false );
$schema = $this->get_item_schema();
if ( ! empty( $schema['properties']['meta'] ) && isset( $request['meta'] ) ) {
$meta_update = $this->meta->update_value( $request['meta'], $term->term_id );
if ( is_wp_error( $meta_update ) ) {
return $meta_update;
}
}
$fields_update = $this->update_additional_fields_for_object( $term, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
$request->set_param( 'context', 'edit' );
/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
do_action( "rest_after_insert_{$this->taxonomy}", $term, $request, false );
$response = $this->prepare_item_for_response( $term, $request );
return rest_ensure_response( $response );
}
/**
* Checks if a request has access to delete the specified term.
*
* @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, otherwise false or WP_Error object.
*/
public function delete_item_permissions_check( $request ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! current_user_can( 'delete_term', $term->term_id ) ) {
return new WP_Error(
'rest_cannot_delete',
__( 'Sorry, you are not allowed to delete this term.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Deletes a single term from a 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 delete_item( $request ) {
$term = $this->get_term( $request['id'] );
if ( is_wp_error( $term ) ) {
return $term;
}
$force = isset( $request['force'] ) ? (bool) $request['force'] : false;
// We don't support trashing for terms.
if ( ! $force ) {
return new WP_Error(
'rest_trash_not_supported',
/* translators: %s: force=true */
sprintf( __( "Terms do not support trashing. Set '%s' to delete." ), 'force=true' ),
array( 'status' => 501 )
);
}
$request->set_param( 'context', 'view' );
$previous = $this->prepare_item_for_response( $term, $request );
$retval = wp_delete_term( $term->term_id, $term->taxonomy );
if ( ! $retval ) {
return new WP_Error(
'rest_cannot_delete',
__( 'The term cannot be deleted.' ),
array( 'status' => 500 )
);
}
$response = new WP_REST_Response();
$response->set_data(
array(
'deleted' => true,
'previous' => $previous->get_data(),
)
);
/**
* Fires after a single term is deleted via the REST API.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_delete_category`
* - `rest_delete_post_tag`
*
* @since 4.7.0
*
* @param WP_Term $term The deleted term.
* @param WP_REST_Response $response The response data.
* @param WP_REST_Request $request The request sent to the API.
*/
do_action( "rest_delete_{$this->taxonomy}", $term, $response, $request );
return $response;
}
/**
* Prepares a single term for create or update.
*
* @since 4.7.0
*
* @param WP_REST_Request $request Request object.
* @return object Term object.
*/
public function prepare_item_for_database( $request ) {
$prepared_term = new stdClass;
$schema = $this->get_item_schema();
if ( isset( $request['name'] ) && ! empty( $schema['properties']['name'] ) ) {
$prepared_term->name = $request['name'];
}
if ( isset( $request['slug'] ) && ! empty( $schema['properties']['slug'] ) ) {
$prepared_term->slug = $request['slug'];
}
if ( isset( $request['taxonomy'] ) && ! empty( $schema['properties']['taxonomy'] ) ) {
$prepared_term->taxonomy = $request['taxonomy'];
}
if ( isset( $request['description'] ) && ! empty( $schema['properties']['description'] ) ) {
$prepared_term->description = $request['description'];
}
if ( isset( $request['parent'] ) && ! empty( $schema['properties']['parent'] ) ) {
$parent_term_id = 0;
$requested_parent = (int) $request['parent'];
if ( $requested_parent ) {
$parent_term = get_term( $requested_parent, $this->taxonomy );
if ( $parent_term instanceof WP_Term ) {
$parent_term_id = $parent_term->term_id;
}
}
$prepared_term->parent = $parent_term_id;
}
/**
* Filters term data before inserting term via the REST API.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_pre_insert_category`
* - `rest_pre_insert_post_tag`
*
* @since 4.7.0
*
* @param object $prepared_term Term object.
* @param WP_REST_Request $request Request object.
*/
return apply_filters( "rest_pre_insert_{$this->taxonomy}", $prepared_term, $request );
}
/**
* Prepares a single term output for response.
*
* @since 4.7.0
*
* @param WP_Term $item Term object.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response Response object.
*/
public function prepare_item_for_response( $item, $request ) {
$fields = $this->get_fields_for_response( $request );
$data = array();
if ( in_array( 'id', $fields, true ) ) {
$data['id'] = (int) $item->term_id;
}
if ( in_array( 'count', $fields, true ) ) {
$data['count'] = (int) $item->count;
}
if ( in_array( 'description', $fields, true ) ) {
$data['description'] = $item->description;
}
if ( in_array( 'link', $fields, true ) ) {
$data['link'] = get_term_link( $item );
}
if ( in_array( 'name', $fields, true ) ) {
$data['name'] = $item->name;
}
if ( in_array( 'slug', $fields, true ) ) {
$data['slug'] = $item->slug;
}
if ( in_array( 'taxonomy', $fields, true ) ) {
$data['taxonomy'] = $item->taxonomy;
}
if ( in_array( 'parent', $fields, true ) ) {
$data['parent'] = (int) $item->parent;
}
if ( in_array( 'meta', $fields, true ) ) {
$data['meta'] = $this->meta->get_value( $item->term_id, $request );
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
$response = rest_ensure_response( $data );
$response->add_links( $this->prepare_links( $item ) );
/**
* Filters the term data for a REST API response.
*
* The dynamic portion of the hook name, `$this->taxonomy`, refers to the taxonomy slug.
*
* Possible hook names include:
*
* - `rest_prepare_category`
* - `rest_prepare_post_tag`
*
* Allows modification of the term data right before it is returned.
*
* @since 4.7.0
*
* @param WP_REST_Response $response The response object.
* @param WP_Term $item The original term object.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( "rest_prepare_{$this->taxonomy}", $response, $item, $request );
}
/**
* Prepares links for the request.
*
* @since 4.7.0
*
* @param WP_Term $term Term object.
* @return array Links for the given term.
*/
protected function prepare_links( $term ) {
$base = $this->namespace . '/' . $this->rest_base;
$links = array(
'self' => array(
'href' => rest_url( trailingslashit( $base ) . $term->term_id ),
),
'collection' => array(
'href' => rest_url( $base ),
),
'about' => array(
'href' => rest_url( sprintf( 'wp/v2/taxonomies/%s', $this->taxonomy ) ),
),
);
if ( $term->parent ) {
$parent_term = get_term( (int) $term->parent, $term->taxonomy );
if ( $parent_term ) {
$links['up'] = array(
'href' => rest_url( trailingslashit( $base ) . $parent_term->term_id ),
'embeddable' => true,
);
}
}
$taxonomy_obj = get_taxonomy( $term->taxonomy );
if ( empty( $taxonomy_obj->object_type ) ) {
return $links;
}
$post_type_links = array();
foreach ( $taxonomy_obj->object_type as $type ) {
$rest_path = rest_get_route_for_post_type_items( $type );
if ( empty( $rest_path ) ) {
continue;
}
$post_type_links[] = array(
'href' => add_query_arg( $this->rest_base, $term->term_id, rest_url( $rest_path ) ),
);
}
if ( ! empty( $post_type_links ) ) {
$links['https://api.w.org/post_type'] = $post_type_links;
}
return $links;
}
/**
* Retrieves the term's schema, conforming to JSON Schema.
*
* @since 4.7.0
*
* @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' => 'post_tag' === $this->taxonomy ? 'tag' : $this->taxonomy,
'type' => 'object',
'properties' => array(
'id' => array(
'description' => __( 'Unique identifier for the term.' ),
'type' => 'integer',
'context' => array( 'view', 'embed', 'edit' ),
'readonly' => true,
),
'count' => array(
'description' => __( 'Number of published posts for the term.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'description' => array(
'description' => __( 'HTML description of the term.' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
),
'link' => array(
'description' => __( 'URL of the term.' ),
'type' => 'string',
'format' => 'uri',
'context' => array( 'view', 'embed', 'edit' ),
'readonly' => true,
),
'name' => array(
'description' => __( 'HTML title for the term.' ),
'type' => 'string',
'context' => array( 'view', 'embed', 'edit' ),
'arg_options' => array(
'sanitize_callback' => 'sanitize_text_field',
),
'required' => true,
),
'slug' => array(
'description' => __( 'An alphanumeric identifier for the term unique to its type.' ),
'type' => 'string',
'context' => array( 'view', 'embed', 'edit' ),
'arg_options' => array(
'sanitize_callback' => array( $this, 'sanitize_slug' ),
),
),
'taxonomy' => array(
'description' => __( 'Type attribution for the term.' ),
'type' => 'string',
'enum' => array( $this->taxonomy ),
'context' => array( 'view', 'embed', 'edit' ),
'readonly' => true,
),
),
);
$taxonomy = get_taxonomy( $this->taxonomy );
if ( $taxonomy->hierarchical ) {
$schema['properties']['parent'] = array(
'description' => __( 'The parent term ID.' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
);
}
$schema['properties']['meta'] = $this->meta->get_field_schema();
$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() {
$query_params = parent::get_collection_params();
$taxonomy = get_taxonomy( $this->taxonomy );
$query_params['context']['default'] = 'view';
$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 ( ! $taxonomy->hierarchical ) {
$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' => 'asc',
'enum' => array(
'asc',
'desc',
),
);
$query_params['orderby'] = array(
'description' => __( 'Sort collection by term attribute.' ),
'type' => 'string',
'default' => 'name',
'enum' => array(
'id',
'include',
'name',
'slug',
'include_slugs',
'term_group',
'description',
'count',
),
);
$query_params['hide_empty'] = array(
'description' => __( 'Whether to hide terms not assigned to any posts.' ),
'type' => 'boolean',
'default' => false,
);
if ( $taxonomy->hierarchical ) {
$query_params['parent'] = array(
'description' => __( 'Limit result set to terms assigned to a specific parent.' ),
'type' => 'integer',
);
}
$query_params['post'] = array(
'description' => __( 'Limit result set to terms assigned to a specific post.' ),
'type' => 'integer',
'default' => null,
);
$query_params['slug'] = array(
'description' => __( 'Limit result set to terms with one or more specific slugs.' ),
'type' => 'array',
'items' => array(
'type' => 'string',
),
);
/**
* Filters collection parameters for the terms controller.
*
* The dynamic part of the filter `$this->taxonomy` refers to the taxonomy
* slug for the controller.
*
* This filter registers the collection parameter, but does not map the
* collection parameter to an internal WP_Term_Query parameter. Use the
* `rest_{$this->taxonomy}_query` filter to set WP_Term_Query parameters.
*
* @since 4.7.0
*
* @param array $query_params JSON Schema-formatted collection parameters.
* @param WP_Taxonomy $taxonomy Taxonomy object.
*/
return apply_filters( "rest_{$this->taxonomy}_collection_params", $query_params, $taxonomy );
}
/**
* Checks that the taxonomy is valid.
*
* @since 4.7.0
*
* @param string $taxonomy Taxonomy to check.
* @return bool Whether the taxonomy is allowed for REST management.
*/
protected function check_is_taxonomy_allowed( $taxonomy ) {
$taxonomy_obj = get_taxonomy( $taxonomy );
if ( $taxonomy_obj && ! empty( $taxonomy_obj->show_in_rest ) ) {
return true;
}
return false;
}
}
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