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319 lines
7.3 KiB
PHP
319 lines
7.3 KiB
PHP
<?php
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/**
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* Variable replacer.
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*
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* Replace '%variables%' in strings based on context.
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*
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* @since 1.0.33
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* @package RankMath
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* @subpackage RankMath\Replace_Variables
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* @author Rank Math <support@rankmath.com>
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*/
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namespace RankMath\Replace_Variables;
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use RankMath\Helper;
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use RankMath\Helpers\Str;
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use RankMath\Helpers\Param;
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use RankMath\Admin\Admin_Helper;
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defined( 'ABSPATH' ) || exit;
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/**
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* Manager class.
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*/
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class Manager extends Post_Variables {
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/**
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* Register variable replacements.
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*
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* @var array
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*/
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protected $replacements = [];
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/**
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* Removed non replaced variables.
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*
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* @var bool
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*/
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public $remove_non_replaced = true;
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/**
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* Is variable setup.
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*
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* @var bool
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*/
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private $is_setup = false;
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/**
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* Hold arguments.
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*
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* @var array
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*/
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public $args = [];
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/**
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* Hold arguments temporarily.
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*
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* @var array
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*/
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protected $tmp_args = [];
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/**
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* Class constructor.
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*/
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public function __construct() {
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$action = is_admin() ? 'admin_enqueue_scripts' : 'wp';
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$priority = is_admin() ? 5 : 25;
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$this->action( $action, 'setup', $priority );
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}
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/**
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* Register variables
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*
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* For developers see rank_math_register_var_replacement().
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*
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* @param string $id Uniquer ID of variable, for example custom.
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* @param array $args Array with additional name, description, variable and example values for the variable.
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* @param mixed $callback Replacement callback. Should return value, not output it.
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*
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* @return bool Replacement was registered successfully or not.
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*/
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public function register_replacement( $id, $args = [], $callback = false ) {
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if ( ! $this->is_unique_id( $id ) ) {
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return false;
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}
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$variable = Variable::from( $id, $args );
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$variable->set_callback( $callback );
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$this->replacements[ $id ] = $variable;
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return true;
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}
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/**
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* Check if variable ID is valid and unique before further processing.
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*
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* @param string $id Variable ID.
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*
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* @return bool Whether the variable is valid or not.
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*/
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private function is_unique_id( $id ) {
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if ( false === preg_match( '`^[A-Z0-9_-]+$`i', $id ) ) {
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trigger_error( esc_html__( 'Variable names can only contain alphanumeric characters, underscores and dashes.', 'rank-math' ), E_USER_WARNING );
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return false;
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}
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if ( isset( $this->replacements[ $id ] ) ) {
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trigger_error( esc_html__( 'The variable has already been registered.', 'rank-math' ), E_USER_WARNING );
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return false;
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}
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return true;
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}
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/**
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* Should we setup variables or not.
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*
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* @return bool
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*/
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private function should_we_setup() {
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if ( Helper::is_ux_builder() ) {
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return false;
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}
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global $wp_customize;
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if ( isset( $wp_customize ) || $this->is_setup ) {
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return false;
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}
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$current_screen = \function_exists( 'get_current_screen' ) ? get_current_screen() : false;
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if (
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$current_screen instanceof \WP_Screen &&
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\in_array( $current_screen->base, [ 'themes' ], true )
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) {
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return false;
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}
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return true;
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}
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/**
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* Set up replacement variables.
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*/
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public function setup() {
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if ( ! $this->should_we_setup() ) {
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return;
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}
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// Variable setuped.
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$this->is_setup = true;
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// Internal variables.
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$current_screen = \function_exists( 'get_current_screen' ) ? get_current_screen() : false;
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if ( $current_screen instanceof \WP_Screen ) {
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$screen_base = $current_screen->base;
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$this->is_post_edit = is_admin() && 'post' === $screen_base;
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$this->is_term_edit = is_admin() && 'term' === $screen_base;
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$this->is_user_edit = is_admin() && ( 'profile' === $screen_base || 'user-edit' === $screen_base );
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}
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/**
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* Filter: strip variables which don't have a replacement.
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*
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* @param bool $final
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*/
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$this->remove_non_replaced = $this->do_filter( 'vars/remove_nonreplaced', true );
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// Setup internal variables.
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$this->setup_basic_variables();
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$this->setup_post_variables();
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$this->setup_term_variables();
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$this->setup_author_variables();
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$this->setup_advanced_variables();
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// Setup custom fields.
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if ( $this->is_post_edit || $this->is_term_edit || $this->is_user_edit ) {
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Helper::add_json( 'customFields', $this->get_custom_fields() );
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Helper::add_json( 'customTerms', $this->get_custom_taxonomies() );
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}
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/**
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* Action: 'rank_math/vars/register_extra_replacements' - Allows adding extra variables.
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*/
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$this->do_action( 'vars/register_extra_replacements' );
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}
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/**
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* Setup JSON for use in ui.
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*/
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public function setup_json() {
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$json = [];
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foreach ( $this->replacements as $id => $variable ) {
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$json[ $id ] = $variable->to_array();
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}
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Helper::add_json( 'variables', $this->do_filter( 'vars/replacements', $json ) );
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}
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/**
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* Get replacements.
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*
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* @return array
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*/
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public function get_replacements() {
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return $this->replacements;
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}
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/**
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* Set arguments.
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*
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* @param array $args The object some of the replacement values might come from,
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* could be a post, taxonomy or term.
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*/
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public function set_arguments( $args = [] ) {
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if ( ! empty( $args ) ) {
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$this->tmp_args = $this->args;
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$this->args = $args;
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}
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}
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/**
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* Reset arguments.
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*/
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public function reset_arguments() {
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$this->args = $this->tmp_args;
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}
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/**
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* Get custom fields.
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*
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* @return array
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*/
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private function get_custom_fields() {
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$metas = [];
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if ( $this->is_user_edit ) {
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global $user_id;
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$metas = get_metadata( 'user', $user_id );
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} elseif ( $this->is_post_edit ) {
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$metas = get_metadata( 'post', $this->args->ID );
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} elseif ( $this->is_term_edit ) {
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$term_id = Param::request( 'tag_ID', 0, FILTER_VALIDATE_INT );
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$metas = get_metadata( 'term', $term_id );
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}
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if ( empty( $metas ) ) {
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return [];
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}
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$json = [];
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foreach ( $metas as $meta_key => $meta_value ) {
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if ( Str::starts_with( '_', $meta_key ) || Str::starts_with( 'rank_math_', $meta_key ) ) {
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continue;
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}
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$json[ $meta_key ] = $meta_value[0];
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}
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return $json;
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}
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/**
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* Get custom taxonomies.
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*
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* @return array
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*/
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private function get_custom_taxonomies() {
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$taxonomies = get_post_taxonomies( $this->args->ID );
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if ( empty( $taxonomies ) ) {
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return [];
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}
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$json = [];
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foreach ( $taxonomies as $taxonomy ) {
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if ( in_array( $taxonomy, [ 'category', 'post_tag' ], true ) ) {
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continue;
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}
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$name = ucwords( str_replace( [ '_', '-' ], ' ', $taxonomy ) );
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/* translators: Taxonomy name. */
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$title = sprintf( __( '%s Title', 'rank-math' ), $name );
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/* translators: Taxonomy name. */
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$desc = sprintf( __( '%s Description', 'rank-math' ), $name );
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$this->register_replacement(
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"term_{$taxonomy}",
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[
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'name' => $title,
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'description' => esc_html__( 'Custom Term title.', 'rank-math' ),
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'variable' => "customterm({$taxonomy})",
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'example' => $title,
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],
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[ $this, 'get_custom_term' ]
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);
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$this->register_replacement(
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"term_{$taxonomy}_desc",
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[
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'name' => $desc,
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'description' => esc_html__( 'Custom Term description.', 'rank-math' ),
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'variable' => "customterm_desc({$taxonomy})",
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'example' => $desc,
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],
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[ $this, 'get_custom_term_desc' ]
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);
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$term = $this->get_custom_term( $taxonomy );
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$term_desc = $this->get_custom_term_desc( $taxonomy );
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$json[ $taxonomy ] = $term ? $term : $title;
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$json[ "{$taxonomy}_desc" ] = $term_desc ? $term_desc : $desc;
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}
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return $json;
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}
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}
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