Struct Header 

pub struct Header {
    pub id: Id128,
    pub namespace: Namespace,
    pub created_at: Timestamp,
    pub updated_at: Timestamp,
}

Fields shared by every substrate record (Note, Entity, Event).

Fields

id: Id128

Unique identifier for this record.

namespace: Namespace

Namespace that owns and isolates this record.

created_at: Timestamp

Wall-clock time when this record was first created.

updated_at: Timestamp

Wall-clock time of the most recent mutation.

Implementations

impl Header

pub fn new(id: Id128, namespace: Namespace, now: Timestamp) -> Self

Construct a new header with created_at and updated_at both set to now.

pub fn touch(&mut self, now: Timestamp)

Advance updated_at to now, preserving created_at.

Trait Implementations

impl Clone for Header

fn clone(&self) -> Header

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Header

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.