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class-wp-taxonomy.php (13344B)

---

 <?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
 	 * @var string
 	 */
 	public $name;
 
 	/**
 	 * Name of the taxonomy shown in the menu. Usually plural.
 	 *
 	 * @since 4.7.0
 	 * @var string
 	 */
 	public $label;
 
 	/**
 	 * Labels object for this taxonomy.
 	 *
 	 * If not set, tag labels are inherited for non-hierarchical types
 	 * and category labels for hierarchical ones.
 	 *
 	 * @see get_taxonomy_labels()
 	 *
 	 * @since 4.7.0
 	 * @var stdClass
 	 */
 	public $labels;
 
 	/**
 	 * A short descriptive summary of what the taxonomy is for.
 	 *
 	 * @since 4.7.0
 	 * @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
 	 * @var bool
 	 */
 	public $public = true;
 
 	/**
 	 * Whether the taxonomy is publicly queryable.
 	 *
 	 * @since 4.7.0
 	 * @var bool
 	 */
 	public $publicly_queryable = true;
 
 	/**
 	 * Whether the taxonomy is hierarchical.
 	 *
 	 * @since 4.7.0
 	 * @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
 	 * @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
 	 * @var bool
 	 */
 	public $show_in_menu = true;
 
 	/**
 	 * Whether the taxonomy is available for selection in navigation menus.
 	 *
 	 * @since 4.7.0
 	 * @var bool
 	 */
 	public $show_in_nav_menus = true;
 
 	/**
 	 * Whether to list the taxonomy in the tag cloud widget controls.
 	 *
 	 * @since 4.7.0
 	 * @var bool
 	 */
 	public $show_tagcloud = true;
 
 	/**
 	 * Whether to show the taxonomy in the quick/bulk edit panel.
 	 *
 	 * @since 4.7.0
 	 * @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
 	 * @var bool
 	 */
 	public $show_admin_column = false;
 
 	/**
 	 * The callback function for the meta box display.
 	 *
 	 * @since 4.7.0
 	 * @var bool|callable
 	 */
 	public $meta_box_cb = null;
 
 	/**
 	 * The callback function for sanitizing taxonomy data saved from a meta box.
 	 *
 	 * @since 5.1.0
 	 * @var callable
 	 */
 	public $meta_box_sanitize_cb = null;
 
 	/**
 	 * An array of object types this taxonomy is registered for.
 	 *
 	 * @since 4.7.0
 	 * @var array
 	 */
 	public $object_type = null;
 
 	/**
 	 * Capabilities for this taxonomy.
 	 *
 	 * @since 4.7.0
 	 * @var stdClass
 	 */
 	public $cap;
 
 	/**
 	 * Rewrites information for this taxonomy.
 	 *
 	 * @since 4.7.0
 	 * @var array|false
 	 */
 	public $rewrite;
 
 	/**
 	 * Query var string for this taxonomy.
 	 *
 	 * @since 4.7.0
 	 * @var string|false
 	 */
 	public $query_var;
 
 	/**
 	 * Function that will be called when the count is updated.
 	 *
 	 * @since 4.7.0
 	 * @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
 	 * @var bool $show_in_rest
 	 */
 	public $show_in_rest;
 
 	/**
 	 * The base path for this taxonomy's REST API endpoints.
 	 *
 	 * @since 4.7.4
 	 * @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
 	 * @var string|bool $rest_controller_class
 	 */
 	public $rest_controller_class;
 
 	/**
 	 * The controller instance for this taxonomy's REST API endpoints.
 	 *
 	 * Lazily computed. Should be accessed using {@see WP_Taxonomy::get_rest_controller()}.
 	 *
 	 * @since 5.5.0
 	 * @var WP_REST_Controller $rest_controller
 	 */
 	public $rest_controller;
 
 	/**
 	 * The default term name for this taxonomy. If you pass an array you have
 	 * to set 'name' and optionally 'slug' and 'description'.
 	 *
 	 * @since 5.5.0
 	 * @var array|string
 	 */
 	public $default_term;
 
 	/**
 	 * Whether terms in this taxonomy should be sorted in the order they are provided to `wp_set_object_terms()`.
 	 *
 	 * Use this in combination with `'orderby' => 'term_order'` when fetching terms.
 	 *
 	 * @since 2.5.0
 	 * @var bool|null
 	 */
 	public $sort = null;
 
 	/**
 	 * Array of arguments to automatically use inside `wp_get_object_terms()` for this taxonomy.
 	 *
 	 * @since 2.6.0
 	 * @var array|null
 	 */
 	public $args = null;
 
 	/**
 	 * Whether it is a built-in taxonomy.
 	 *
 	 * @since 4.7.0
 	 * @var bool
 	 */
 	public $_builtin;
 
 	/**
 	 * Constructor.
 	 *
 	 * See the register_taxonomy() function for accepted arguments for `$args`.
 	 *
 	 * @since 4.7.0
 	 *
 	 * @global WP $wp Current WordPress environment 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.
 	 *
 	 * See the register_taxonomy() function for accepted arguments for `$args`.
 	 *
 	 * @since 4.7.0
 	 *
 	 * @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.
 		 *                              See the register_taxonomy() function for accepted arguments.
 		 * @param string   $taxonomy    Taxonomy key.
 		 * @param string[] $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,
 			'meta_box_sanitize_cb'  => null,
 			'capabilities'          => array(),
 			'rewrite'               => true,
 			'query_var'             => $this->name,
 			'update_count_callback' => '',
 			'show_in_rest'          => false,
 			'rest_base'             => false,
 			'rest_controller_class' => false,
 			'default_term'          => null,
 			'sort'                  => null,
 			'args'                  => null,
 			'_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;
 
 		// Default meta box sanitization callback depends on the value of 'meta_box_cb'.
 		if ( null === $args['meta_box_sanitize_cb'] ) {
 			switch ( $args['meta_box_cb'] ) {
 				case 'post_categories_meta_box':
 					$args['meta_box_sanitize_cb'] = 'taxonomy_meta_box_sanitize_cb_checkboxes';
 					break;
 
 				case 'post_tags_meta_box':
 				default:
 					$args['meta_box_sanitize_cb'] = 'taxonomy_meta_box_sanitize_cb_input';
 					break;
 			}
 		}
 
 		// Default taxonomy term.
 		if ( ! empty( $args['default_term'] ) ) {
 			if ( ! is_array( $args['default_term'] ) ) {
 				$args['default_term'] = array( 'name' => $args['default_term'] );
 			}
 			$args['default_term'] = wp_parse_args(
 				$args['default_term'],
 				array(
 					'name'        => '',
 					'slug'        => '',
 					'description' => '',
 				)
 			);
 		}
 
 		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
 	 *
 	 * @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
 	 *
 	 * @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
 	 */
 	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
 	 */
 	public function remove_hooks() {
 		remove_filter( 'wp_ajax_add-' . $this->name, '_wp_ajax_add_hierarchical_term' );
 	}
 
 	/**
 	 * Gets the REST API controller for this taxonomy.
 	 *
 	 * Will only instantiate the controller class once per request.
 	 *
 	 * @since 5.5.0
 	 *
 	 * @return WP_REST_Controller|null The controller instance, or null if the taxonomy
 	 *                                 is set not to show in rest.
 	 */
 	public function get_rest_controller() {
 		if ( ! $this->show_in_rest ) {
 			return null;
 		}
 
 		$class = $this->rest_controller_class ? $this->rest_controller_class : WP_REST_Terms_Controller::class;
 
 		if ( ! class_exists( $class ) ) {
 			return null;
 		}
 
 		if ( ! is_subclass_of( $class, WP_REST_Controller::class ) ) {
 			return null;
 		}
 
 		if ( ! $this->rest_controller ) {
 			$this->rest_controller = new $class( $this->name );
 		}
 
 		if ( ! ( $this->rest_controller instanceof $class ) ) {
 			return null;
 		}
 
 		return $this->rest_controller;
 	}
 }