s[ $field_id ] = array_merge( $endpoint_args[ $field_id ], $params['arg_options'] ); } } return $endpoint_args; } /** * Converts an error to a response object. * * This iterates over all error codes and messages to change it into a flat * array. This enables simpler client behaviour, as it is represented as a * list in JSON rather than an object/map. * * @since 5.7.0 * * @param WP_Error $error WP_Error instance. * * @return WP_REST_Response List of associative arrays with code and message keys. */ function rest_convert_error_to_response( $error ) { $status = array_reduce( $error->get_all_error_data(), static function ( $status, $error_data ) { return is_array( $error_data ) && isset( $error_data['status'] ) ? $error_data['status'] : $status; }, 500 ); $errors = array(); foreach ( (array) $error->errors as $code => $messages ) { $all_data = $error->get_all_error_data( $code ); $last_data = array_pop( $all_data ); foreach ( (array) $messages as $message ) { $formatted = array( 'code' => $code, 'message' => $message, 'data' => $last_data, ); if ( $all_data ) { $formatted['additional_data'] = $all_data; } $errors[] = $formatted; } } $data = $errors[0]; if ( count( $errors ) > 1 ) { // Remove the primary error. array_shift( $errors ); $data['additional_errors'] = $errors; } return new WP_REST_Response( $data, $status ); }