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8d11801c86
This allows for programatically determining the REST version of the current page. The links also aid human discovery of the REST API in general. Props dshanske, tfrommen, TimothyBlynJacobs. Fixes #49116. Built from https://develop.svn.wordpress.org/trunk@48273 git-svn-id: http://core.svn.wordpress.org/trunk@48042 1a063a9b-81f0-0310-95a4-ce76da25c4cd
502 lines
12 KiB
PHP
502 lines
12 KiB
PHP
<?php
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/**
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* Taxonomy API: WP_Taxonomy class
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*
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* @package WordPress
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* @subpackage Taxonomy
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* @since 4.7.0
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*/
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/**
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* Core class used for interacting with taxonomies.
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*
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* @since 4.7.0
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*/
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final class WP_Taxonomy {
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/**
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* Taxonomy key.
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*
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* @since 4.7.0
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* @var string
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*/
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public $name;
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/**
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* Name of the taxonomy shown in the menu. Usually plural.
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*
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* @since 4.7.0
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* @var string
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*/
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public $label;
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/**
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* Labels object for this taxonomy.
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*
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* If not set, tag labels are inherited for non-hierarchical types
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* and category labels for hierarchical ones.
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*
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* @see get_taxonomy_labels()
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*
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* @since 4.7.0
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* @var object
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*/
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public $labels;
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/**
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* A short descriptive summary of what the taxonomy is for.
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*
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* @since 4.7.0
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* @var string
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*/
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public $description = '';
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/**
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* Whether a taxonomy is intended for use publicly either via the admin interface or by front-end users.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $public = true;
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/**
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* Whether the taxonomy is publicly queryable.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $publicly_queryable = true;
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/**
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* Whether the taxonomy is hierarchical.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $hierarchical = false;
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/**
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* Whether to generate and allow a UI for managing terms in this taxonomy in the admin.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_ui = true;
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/**
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* Whether to show the taxonomy in the admin menu.
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*
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* If true, the taxonomy is shown as a submenu of the object type menu. If false, no menu is shown.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_in_menu = true;
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/**
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* Whether the taxonomy is available for selection in navigation menus.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_in_nav_menus = true;
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/**
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* Whether to list the taxonomy in the tag cloud widget controls.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_tagcloud = true;
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/**
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* Whether to show the taxonomy in the quick/bulk edit panel.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_in_quick_edit = true;
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/**
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* Whether to display a column for the taxonomy on its post type listing screens.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $show_admin_column = false;
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/**
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* The callback function for the meta box display.
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*
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* @since 4.7.0
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* @var bool|callable
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*/
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public $meta_box_cb = null;
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/**
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* The callback function for sanitizing taxonomy data saved from a meta box.
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*
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* @since 5.1.0
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* @var callable
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*/
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public $meta_box_sanitize_cb = null;
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/**
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* An array of object types this taxonomy is registered for.
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*
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* @since 4.7.0
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* @var array
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*/
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public $object_type = null;
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/**
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* Capabilities for this taxonomy.
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*
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* @since 4.7.0
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* @var object
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*/
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public $cap;
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/**
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* Rewrites information for this taxonomy.
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*
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* @since 4.7.0
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* @var array|false
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*/
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public $rewrite;
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/**
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* Query var string for this taxonomy.
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*
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* @since 4.7.0
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* @var string|false
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*/
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public $query_var;
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/**
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* Function that will be called when the count is updated.
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*
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* @since 4.7.0
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* @var callable
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*/
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public $update_count_callback;
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/**
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* Whether this taxonomy should appear in the REST API.
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*
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* Default false. If true, standard endpoints will be registered with
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* respect to $rest_base and $rest_controller_class.
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*
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* @since 4.7.4
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* @var bool $show_in_rest
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*/
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public $show_in_rest;
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/**
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* The base path for this taxonomy's REST API endpoints.
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*
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* @since 4.7.4
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* @var string|bool $rest_base
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*/
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public $rest_base;
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/**
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* The controller for this taxonomy's REST API endpoints.
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*
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* Custom controllers must extend WP_REST_Controller.
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*
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* @since 4.7.4
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* @var string|bool $rest_controller_class
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*/
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public $rest_controller_class;
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/**
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* The controller instance for this taxonomy's REST API endpoints.
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*
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* Lazily computed. Should be accessed using {@see WP_Taxonomy::get_rest_controller()}.
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*
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* @since 5.5.0
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* @var WP_REST_Controller $rest_controller
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*/
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public $rest_controller;
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/**
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* Whether it is a built-in taxonomy.
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*
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* @since 4.7.0
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* @var bool
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*/
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public $_builtin;
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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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* @global WP $wp Current WordPress environment instance.
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*
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* @param string $taxonomy Taxonomy key, must not exceed 32 characters.
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* @param array|string $object_type Name of the object type for the taxonomy object.
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* @param array|string $args Optional. Array or query string of arguments for registering a taxonomy.
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* Default empty array.
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*/
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public function __construct( $taxonomy, $object_type, $args = array() ) {
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$this->name = $taxonomy;
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$this->set_props( $object_type, $args );
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}
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/**
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* Sets taxonomy properties.
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*
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* @since 4.7.0
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*
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* @param array|string $object_type Name of the object type for the taxonomy object.
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* @param array|string $args Array or query string of arguments for registering a taxonomy.
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*/
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public function set_props( $object_type, $args ) {
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$args = wp_parse_args( $args );
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/**
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* Filters the arguments for registering a taxonomy.
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*
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* @since 4.4.0
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*
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* @param array $args Array of arguments for registering a taxonomy.
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* @param string $taxonomy Taxonomy key.
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* @param string[] $object_type Array of names of object types for the taxonomy.
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*/
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$args = apply_filters( 'register_taxonomy_args', $args, $this->name, (array) $object_type );
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$defaults = array(
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'labels' => array(),
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'description' => '',
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'public' => true,
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'publicly_queryable' => null,
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'hierarchical' => false,
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'show_ui' => null,
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'show_in_menu' => null,
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'show_in_nav_menus' => null,
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'show_tagcloud' => null,
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'show_in_quick_edit' => null,
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'show_admin_column' => false,
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'meta_box_cb' => null,
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'meta_box_sanitize_cb' => null,
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'capabilities' => array(),
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'rewrite' => true,
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'query_var' => $this->name,
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'update_count_callback' => '',
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'show_in_rest' => false,
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'rest_base' => false,
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'rest_controller_class' => false,
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'_builtin' => false,
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);
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$args = array_merge( $defaults, $args );
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// If not set, default to the setting for 'public'.
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if ( null === $args['publicly_queryable'] ) {
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$args['publicly_queryable'] = $args['public'];
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}
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if ( false !== $args['query_var'] && ( is_admin() || false !== $args['publicly_queryable'] ) ) {
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if ( true === $args['query_var'] ) {
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$args['query_var'] = $this->name;
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} else {
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$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
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}
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} else {
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// Force 'query_var' to false for non-public taxonomies.
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$args['query_var'] = false;
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}
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if ( false !== $args['rewrite'] && ( is_admin() || get_option( 'permalink_structure' ) ) ) {
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$args['rewrite'] = wp_parse_args(
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$args['rewrite'],
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array(
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'with_front' => true,
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'hierarchical' => false,
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'ep_mask' => EP_NONE,
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)
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);
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if ( empty( $args['rewrite']['slug'] ) ) {
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$args['rewrite']['slug'] = sanitize_title_with_dashes( $this->name );
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}
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}
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// If not set, default to the setting for 'public'.
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if ( null === $args['show_ui'] ) {
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$args['show_ui'] = $args['public'];
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}
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// If not set, default to the setting for 'show_ui'.
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if ( null === $args['show_in_menu'] || ! $args['show_ui'] ) {
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$args['show_in_menu'] = $args['show_ui'];
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}
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// If not set, default to the setting for 'public'.
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if ( null === $args['show_in_nav_menus'] ) {
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$args['show_in_nav_menus'] = $args['public'];
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}
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// If not set, default to the setting for 'show_ui'.
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if ( null === $args['show_tagcloud'] ) {
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$args['show_tagcloud'] = $args['show_ui'];
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}
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// If not set, default to the setting for 'show_ui'.
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if ( null === $args['show_in_quick_edit'] ) {
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$args['show_in_quick_edit'] = $args['show_ui'];
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}
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$default_caps = array(
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'manage_terms' => 'manage_categories',
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'edit_terms' => 'manage_categories',
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'delete_terms' => 'manage_categories',
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'assign_terms' => 'edit_posts',
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);
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$args['cap'] = (object) array_merge( $default_caps, $args['capabilities'] );
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unset( $args['capabilities'] );
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$args['object_type'] = array_unique( (array) $object_type );
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// If not set, use the default meta box.
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if ( null === $args['meta_box_cb'] ) {
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if ( $args['hierarchical'] ) {
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$args['meta_box_cb'] = 'post_categories_meta_box';
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} else {
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$args['meta_box_cb'] = 'post_tags_meta_box';
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}
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}
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$args['name'] = $this->name;
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// Default meta box sanitization callback depends on the value of 'meta_box_cb'.
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if ( null === $args['meta_box_sanitize_cb'] ) {
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switch ( $args['meta_box_cb'] ) {
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case 'post_categories_meta_box':
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$args['meta_box_sanitize_cb'] = 'taxonomy_meta_box_sanitize_cb_checkboxes';
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break;
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case 'post_tags_meta_box':
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default:
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$args['meta_box_sanitize_cb'] = 'taxonomy_meta_box_sanitize_cb_input';
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break;
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}
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}
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foreach ( $args as $property_name => $property_value ) {
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$this->$property_name = $property_value;
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}
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$this->labels = get_taxonomy_labels( $this );
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$this->label = $this->labels->name;
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}
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/**
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* Adds the necessary rewrite rules for the taxonomy.
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*
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* @since 4.7.0
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*
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* @global WP $wp Current WordPress environment instance.
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*/
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public function add_rewrite_rules() {
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/* @var WP $wp */
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global $wp;
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// Non-publicly queryable taxonomies should not register query vars, except in the admin.
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if ( false !== $this->query_var && $wp ) {
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$wp->add_query_var( $this->query_var );
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}
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if ( false !== $this->rewrite && ( is_admin() || get_option( 'permalink_structure' ) ) ) {
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if ( $this->hierarchical && $this->rewrite['hierarchical'] ) {
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$tag = '(.+?)';
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} else {
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$tag = '([^/]+)';
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}
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add_rewrite_tag( "%$this->name%", $tag, $this->query_var ? "{$this->query_var}=" : "taxonomy=$this->name&term=" );
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add_permastruct( $this->name, "{$this->rewrite['slug']}/%$this->name%", $this->rewrite );
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}
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}
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/**
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* Removes any rewrite rules, permastructs, and rules for the taxonomy.
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*
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* @since 4.7.0
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*
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* @global WP $wp Current WordPress environment instance.
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*/
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public function remove_rewrite_rules() {
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/* @var WP $wp */
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global $wp;
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// Remove query var.
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if ( false !== $this->query_var ) {
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$wp->remove_query_var( $this->query_var );
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}
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// Remove rewrite tags and permastructs.
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if ( false !== $this->rewrite ) {
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remove_rewrite_tag( "%$this->name%" );
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remove_permastruct( $this->name );
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}
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}
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/**
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* Registers the ajax callback for the meta box.
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*
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* @since 4.7.0
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*/
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public function add_hooks() {
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add_filter( 'wp_ajax_add-' . $this->name, '_wp_ajax_add_hierarchical_term' );
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}
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/**
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* Removes the ajax callback for the meta box.
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*
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* @since 4.7.0
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*/
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public function remove_hooks() {
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remove_filter( 'wp_ajax_add-' . $this->name, '_wp_ajax_add_hierarchical_term' );
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}
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/**
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* Gets the REST API controller for this taxonomy.
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*
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* Will only instantiate the controller class once per request.
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*
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* @since 5.5.0
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*
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* @return WP_REST_Controller|null The controller instance, or null if the taxonomy
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* is set not to show in rest.
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*/
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public function get_rest_controller() {
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if ( ! $this->show_in_rest ) {
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return null;
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}
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$class = $this->rest_controller_class ? $this->rest_controller_class : WP_REST_Terms_Controller::class;
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if ( ! class_exists( $class ) ) {
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return null;
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}
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if ( ! is_subclass_of( $class, WP_REST_Controller::class ) ) {
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return null;
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}
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if ( ! $this->rest_controller ) {
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$this->rest_controller = new $class( $this->name );
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}
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if ( ! ( $this->rest_controller instanceof $class ) ) {
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return null;
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}
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return $this->rest_controller;
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}
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}
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