File Content: WPML.php <?php namespace MetaBox\Integrations; class WPML { /** * List of fields that need to translate values (because they're saved as IDs). * * @var array */ private $field_types = [ 'post', 'taxonomy_advanced' ]; public function __construct() { // Run before meta boxes are registered (at `init` with priority 20) so it can modify fields. add_action( 'init', [ $this, 'init' ] ); } public function init(): void { if ( ! defined( 'ICL_SITEPRESS_VERSION' ) ) { return; } add_filter( 'wpml_duplicate_generic_string', [ $this, 'translate_ids' ], 10, 3 ); add_filter( 'rwmb_normalize_field', [ $this, 'modify_field' ] ); // Filter the value on the front end. add_filter( 'rwmb_get_value', [ $this, 'get_translated_value' ], 10, 2 ); add_filter( '_rwmb_post_format_single_value', [ $this, 'get_translated_value' ], 10, 2 ); } /** * Translating IDs stored as field values upon WPML post/page duplication. * * @param mixed $value Meta value. * @param string $target_language Target language. * @param array $meta_data Meta arguments. * @return mixed */ public function translate_ids( $value, $target_language, $meta_data ) { if ( 'custom_field' !== $meta_data['context'] ) { return $value; } $field = rwmb_get_registry( 'field' )->get( $meta_data['key'], get_post_type( $meta_data['master_post_id'] ) ); if ( false === $field || ! in_array( $field['type'], $this->field_types, true ) ) { return $value; } // Object type needed for WPML filter differs between fields. $object_type = 'taxonomy_advanced' === $field['type'] ? $field['taxonomy'] : $field['post_type']; // Translating values, whether are stored as comma separated strings or not. if ( ! str_contains( $value, ',' ) ) { $value = apply_filters( 'wpml_object_id', $value, $object_type, true, $target_language ); return $value; } // Dealing with IDs stored as comma separated strings. $translated_values = []; $values = explode( ',', $value ); foreach ( $values as $v ) { $translated_values[] = apply_filters( 'wpml_object_id', $v, $object_type, true, $target_language ); } $value = implode( ',', $translated_values ); return $value; } /** * Modified field depends on its translation status. * If the post is a translated version of another post and the field is set to: * - Do not translate: hide the field. * - Copy: make it disabled so users cannot edit. * - Translate: do nothing. */ public function modify_field( array $field ): array { global $wpml_post_translations; if ( empty( $field['id'] ) ) { return $field; } // Get post ID. $request = rwmb_request(); $post_id = $request->filter_get( 'post', FILTER_SANITIZE_NUMBER_INT ); if ( ! $post_id ) { $post_id = $request->filter_post( 'post_ID', FILTER_SANITIZE_NUMBER_INT ); } // If the post is the original one: do nothing. if ( ! method_exists( $wpml_post_translations, 'get_source_lang_code' ) || ! $wpml_post_translations->get_source_lang_code( $post_id ) ) { return $field; } // Get setting for the custom field translation. $custom_fields_translation = apply_filters( 'wpml_sub_setting', false, 'translation-management', 'custom_fields_translation' ); if ( ! isset( $custom_fields_translation[ $field['id'] ] ) ) { return $field; } $setting = intval( $custom_fields_translation[ $field['id'] ] ); if ( 0 === $setting ) { // Do not translate: hide it. $field['class'] .= ' hidden'; } elseif ( 1 === $setting ) { // Copy: disable editing. $field['disabled'] = true; } return $field; } public function get_translated_value( $value, $field ) { if ( ! is_array( $field ) || empty( $field['type'] ) || $field['type'] !== 'post' ) { return $value; } $type = is_array( $field['post_type'] ) ? reset( $field['post_type'] ) : $field['post_type']; $current_language = apply_filters( 'wpml_current_language', null ); return $this->get_translated_id( $value, $type, $current_language ); } private function get_translated_id( $id, $type, $current_language ) { if ( is_array( $id ) ) { return array_map( function ( $sub_id ) use ( $type, $current_language ) { return $this->get_translated_id( $sub_id, $type, $current_language ); }, $id ); } return is_numeric( $id ) ? apply_filters( 'wpml_object_id', $id, $type, true, $current_language ) : $id; } } Submit