Viewing file:  class-wp-taxonomy.php (10.3 KB) -rw-r--r--
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<?php
/**
* Taxonomy API: WP_Taxonomy class
*
* @package WordPress
* @subpackage Taxonomy
* @since 4.7.0
*/
/**
* Core class used for interacting with taxonomies.
*
* @since 4.7.0
*/
final class WP_Taxonomy {
/**
* Taxonomy key.
*
* @since 4.7.0
* @access public
* @var string
*/
public $name;
/**
* Name of the taxonomy shown in the menu. Usually plural.
*
* @since 4.7.0
* @access public
* @var string
*/
public $label;
/**
* An array of labels for this taxonomy.
*
* @since 4.7.0
* @access public
* @var object
*/
public $labels = array();
/**
* A short descriptive summary of what the taxonomy is for.
*
* @since 4.7.0
* @access public
* @var string
*/
public $description = '';
/**
* Whether a taxonomy is intended for use publicly either via the admin interface or by front-end users.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $public = true;
/**
* Whether the taxonomy is publicly queryable.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $publicly_queryable = true;
/**
* Whether the taxonomy is hierarchical.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $hierarchical = false;
/**
* Whether to generate and allow a UI for managing terms in this taxonomy in the admin.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_ui = true;
/**
* Whether to show the taxonomy in the admin menu.
*
* If true, the taxonomy is shown as a submenu of the object type menu. If false, no menu is shown.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_in_menu = true;
/**
* Whether the taxonomy is available for selection in navigation menus.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_in_nav_menus = true;
/**
* Whether to list the taxonomy in the tag cloud widget controls.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_tagcloud = true;
/**
* Whether to show the taxonomy in the quick/bulk edit panel.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_in_quick_edit = true;
/**
* Whether to display a column for the taxonomy on its post type listing screens.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $show_admin_column = false;
/**
* The callback function for the meta box display.
*
* @since 4.7.0
* @access public
* @var bool|callable
*/
public $meta_box_cb = null;
/**
* An array of object types this taxonomy is registered for.
*
* @since 4.7.0
* @access public
* @var array
*/
public $object_type = null;
/**
* Capabilities for this taxonomy.
*
* @since 4.7.0
* @access public
* @var array
*/
public $cap;
/**
* Rewrites information for this taxonomy.
*
* @since 4.7.0
* @access public
* @var array|false
*/
public $rewrite;
/**
* Query var string for this taxonomy.
*
* @since 4.7.0
* @access public
* @var string|false
*/
public $query_var;
/**
* Function that will be called when the count is updated.
*
* @since 4.7.0
* @access public
* @var callable
*/
public $update_count_callback;
/**
* Whether this taxonomy should appear in the REST API.
*
* Default false. If true, standard endpoints will be registered with
* respect to $rest_base and $rest_controller_class.
*
* @since 4.7.4
* @access public
* @var bool $show_in_rest
*/
public $show_in_rest;
/**
* The base path for this taxonomy's REST API endpoints.
*
* @since 4.7.4
* @access public
* @var string|bool $rest_base
*/
public $rest_base;
/**
* The controller for this taxonomy's REST API endpoints.
*
* Custom controllers must extend WP_REST_Controller.
*
* @since 4.7.4
* @access public
* @var string|bool $rest_controller_class
*/
public $rest_controller_class;
/**
* Whether it is a built-in taxonomy.
*
* @since 4.7.0
* @access public
* @var bool
*/
public $_builtin;
/**
* Constructor.
*
* @since 4.7.0
* @access public
*
* @global WP $wp WP instance.
*
* @param string $taxonomy Taxonomy key, must not exceed 32 characters.
* @param array|string $object_type Name of the object type for the taxonomy object.
* @param array|string $args Optional. Array or query string of arguments for registering a taxonomy.
* Default empty array.
*/
public function __construct( $taxonomy, $object_type, $args = array() ) {
$this->name = $taxonomy;
$this->set_props( $object_type, $args );
}
/**
* Sets taxonomy properties.
*
* @since 4.7.0
* @access public
*
* @param array|string $object_type Name of the object type for the taxonomy object.
* @param array|string $args Array or query string of arguments for registering a taxonomy.
*/
public function set_props( $object_type, $args ) {
$args = wp_parse_args( $args );
/**
* Filters the arguments for registering a taxonomy.
*
* @since 4.4.0
*
* @param array $args Array of arguments for registering a taxonomy.
* @param string $taxonomy Taxonomy key.
* @param array $object_type Array of names of object types for the taxonomy.
*/
$args = apply_filters( 'register_taxonomy_args', $args, $this->name, (array) $object_type );
$defaults = array(
'labels' => array(),
'description' => '',
'public' => true,
'publicly_queryable' => null,
'hierarchical' => false,
'show_ui' => null,
'show_in_menu' => null,
'show_in_nav_menus' => null,
'show_tagcloud' => null,
'show_in_quick_edit' => null,
'show_admin_column' => false,
'meta_box_cb' => null,
'capabilities' => array(),
'rewrite' => true,
'query_var' => $this->name,
'update_count_callback' => '',
'show_in_rest' => false,
'rest_base' => false,
'rest_controller_class' => false,
'_builtin' => false,
);
$args = array_merge( $defaults, $args );
// If not set, default to the setting for public.
if ( null === $args['publicly_queryable'] ) {
$args['publicly_queryable'] = $args['public'];
}
if ( false !== $args['query_var'] && ( is_admin() || false !== $args['publicly_queryable'] ) ) {
if ( true === $args['query_var'] ) {
$args['query_var'] = $this->name;
} else {
$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
}
} else {
// Force query_var to false for non-public taxonomies.
$args['query_var'] = false;
}
if ( false !== $args['rewrite'] && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
$args['rewrite'] = wp_parse_args( $args['rewrite'], array(
'with_front' => true,
'hierarchical' => false,
'ep_mask' => EP_NONE,
) );
if ( empty( $args['rewrite']['slug'] ) ) {
$args['rewrite']['slug'] = sanitize_title_with_dashes( $this->name );
}
}
// If not set, default to the setting for public.
if ( null === $args['show_ui'] ) {
$args['show_ui'] = $args['public'];
}
// If not set, default to the setting for show_ui.
if ( null === $args['show_in_menu'] || ! $args['show_ui'] ) {
$args['show_in_menu'] = $args['show_ui'];
}
// If not set, default to the setting for public.
if ( null === $args['show_in_nav_menus'] ) {
$args['show_in_nav_menus'] = $args['public'];
}
// If not set, default to the setting for show_ui.
if ( null === $args['show_tagcloud'] ) {
$args['show_tagcloud'] = $args['show_ui'];
}
// If not set, default to the setting for show_ui.
if ( null === $args['show_in_quick_edit'] ) {
$args['show_in_quick_edit'] = $args['show_ui'];
}
$default_caps = array(
'manage_terms' => 'manage_categories',
'edit_terms' => 'manage_categories',
'delete_terms' => 'manage_categories',
'assign_terms' => 'edit_posts',
);
$args['cap'] = (object) array_merge( $default_caps, $args['capabilities'] );
unset( $args['capabilities'] );
$args['object_type'] = array_unique( (array) $object_type );
// If not set, use the default meta box
if ( null === $args['meta_box_cb'] ) {
if ( $args['hierarchical'] ) {
$args['meta_box_cb'] = 'post_categories_meta_box';
} else {
$args['meta_box_cb'] = 'post_tags_meta_box';
}
}
$args['name'] = $this->name;
foreach ( $args as $property_name => $property_value ) {
$this->$property_name = $property_value;
}
$this->labels = get_taxonomy_labels( $this );
$this->label = $this->labels->name;
}
/**
* Adds the necessary rewrite rules for the taxonomy.
*
* @since 4.7.0
* @access public
*
* @global WP $wp Current WordPress environment instance.
*/
public function add_rewrite_rules() {
/* @var WP $wp */
global $wp;
// Non-publicly queryable taxonomies should not register query vars, except in the admin.
if ( false !== $this->query_var && $wp ) {
$wp->add_query_var( $this->query_var );
}
if ( false !== $this->rewrite && ( is_admin() || '' != get_option( 'permalink_structure' ) ) ) {
if ( $this->hierarchical && $this->rewrite['hierarchical'] ) {
$tag = '(.+?)';
} else {
$tag = '([^/]+)';
}
add_rewrite_tag( "%$this->name%", $tag, $this->query_var ? "{$this->query_var}=" : "taxonomy=$this->name&term=" );
add_permastruct( $this->name, "{$this->rewrite['slug']}/%$this->name%", $this->rewrite );
}
}
/**
* Removes any rewrite rules, permastructs, and rules for the taxonomy.
*
* @since 4.7.0
* @access public
*
* @global WP $wp Current WordPress environment instance.
*/
public function remove_rewrite_rules() {
/* @var WP $wp */
global $wp;
// Remove query var.
if ( false !== $this->query_var ) {
$wp->remove_query_var( $this->query_var );
}
// Remove rewrite tags and permastructs.
if ( false !== $this->rewrite ) {
remove_rewrite_tag( "%$this->name%" );
remove_permastruct( $this->name );
}
}
/**
* Registers the ajax callback for the meta box.
*
* @since 4.7.0
* @access public
*/
public function add_hooks() {
add_filter( 'wp_ajax_add-' . $this->name, '_wp_ajax_add_hierarchical_term' );
}
/**
* Removes the ajax callback for the meta box.
*
* @since 4.7.0
* @access public
*/
public function remove_hooks() {
remove_filter( 'wp_ajax_add-' . $this->name, '_wp_ajax_add_hierarchical_term' );
}
}
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