Dominykas

/**
 * WPML plugin support: Set titles for custom types / taxonomies as translatable.
 * It adds new keys to a wpml-config.xml file for a custom post type title, metadesc, title-ptarchive and metadesc-ptarchive fields translation.
 * Documentation: http://wpml.org/documentation/support/language-configuration-files/
 *
 * @global $sitepress
 * @param array $config
 * @return array
 */
function wpseo_wpml_config( $config ) {
    global $sitepress;

    if ( ( is_array( $config ) && isset( $config['wpml-config']['admin-texts']['key'] ) ) && ( is_array( $config['wpml-config']['admin-texts']['key'] ) && $config['wpml-config']['admin-texts']['key'] !== array() ) ) {
        $admin_texts = $config['wpml-config']['admin-texts']['key'];
        foreach ( $admin_texts as $k => $val ) {
            if ( $val['attr']['name'] === 'wpseo_titles' ) {
                $translate_cp = array_keys( $sitepress->get_translatable_documents() );
                if ( is_array( $translate_cp ) && $translate_cp !== array() ) {
                    foreach ( $translate_cp as $post_type ) {
                        $admin_texts[$k]['key'][]['attr']['name'] = 'title-'. $post_type . '-wpseo';
                        $admin_texts[$k]['key'][]['attr']['name'] = 'metadesc-'. $post_type . '-wpseo';
                        $admin_texts[$k]['key'][]['attr']['name'] = 'metakey-'. $post_type . '-wpseo';
                        $admin_texts[$k]['key'][]['attr']['name'] = 'title-ptarchive-'. $post_type;
                        $admin_texts[$k]['key'][]['attr']['name'] = 'metadesc-ptarchive-'. $post_type;
                        $admin_texts[$k]['key'][]['attr']['name'] = 'metakey-ptarchive-'. $post_type;

                        $translate_tax = $sitepress->get_translatable_taxonomies( false, $post_type );
                        if ( is_array( $translate_tax ) && $translate_tax !== array() ) {
                            foreach ( $translate_tax as $taxonomy ) {
                                $admin_texts[$k]['key'][]['attr']['name'] = 'title-tax-'. $taxonomy;
                                $admin_texts[$k]['key'][]['attr']['name'] = 'metadesc-tax-'. $taxonomy;
                                $admin_texts[$k]['key'][]['attr']['name'] = 'metakey-tax-'. $taxonomy;
                            }
                        }
                    }
                }
                break;
            }
        }
        $config['wpml-config']['admin-texts']['key'] = $admin_texts;
    }

    return $config;
}
add_filter( 'icl_wpml_config_array', 'wpseo_wpml_config' );