WP_REST_Controller::add_additional_fields_to_object() WordPress Method

	protected function add_additional_fields_to_object( $prepared, $request ) {

		$additional_fields = $this->get_additional_fields();

		$requested_fields = $this->get_fields_for_response( $request );

		foreach ( $additional_fields as $field_name => $field_options ) {
			if ( ! $field_options['get_callback'] ) {
				continue;
			}

			if ( ! rest_is_field_included( $field_name, $requested_fields ) ) {
				continue;
			}

			$prepared[ $field_name ] = call_user_func( $field_options['get_callback'], $prepared, $field_name, $request, $this->get_object_type() );
		}

		return $prepared;
	}
Uses	Description
wp-includes/rest-api.php:rest_is_field_included()	Given an array of fields to include in a response, some of which may be `nested.fields`, determine whether the provided field should be included in the response body.
wp-includes/rest-api/endpoints/class-wp-rest-controller.php:WP_REST_Controller::get_fields_for_response()	Gets an array of fields to be included on the response.
wp-includes/rest-api/endpoints/class-wp-rest-controller.php:WP_REST_Controller::get_object_type()	Retrieves the object type this controller is responsible for managing.
wp-includes/rest-api/endpoints/class-wp-rest-controller.php:WP_REST_Controller::get_additional_fields()	Retrieves all of the registered additional fields for a given object-type.