Struct Metadata 

pub struct Metadata {
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
    pub deleted_at: Option<DateTime<Utc>>,
    pub created_by: Option<Uuid>,
    pub updated_by: Option<Uuid>,
    pub deleted_by: Option<Uuid>,
}

Fields

created_at: DateTime<Utc>

When the record was created

updated_at: DateTime<Utc>

When the record was last updated

deleted_at: Option<DateTime<Utc>>

When the record was soft deleted (if applicable)

created_by: Option<Uuid>

ID of user who created the record

updated_by: Option<Uuid>

ID of user who last updated the record

deleted_by: Option<Uuid>

ID of user who soft deleted the record

Implementations

impl Metadata

pub fn new( created_at: DateTime<Utc>, updated_at: DateTime<Utc>, deleted_at: Option<DateTime<Utc>>, created_by: Option<Uuid>, updated_by: Option<Uuid>, deleted_by: Option<Uuid>, ) -> Self

Create a new Metadata value object

pub fn new_record(created_by: Option<Uuid>) -> Self

Create metadata for a new record (created now)

pub fn mark_updated(&mut self, updated_by: Option<Uuid>)

NOTE: These methods use &mut self for domain state transitions. While value objects are typically immutable, audit metadata represents a special case where the metadata tracks the lifecycle state of an entity.

Mark the record as updated

Updates the updated_at timestamp and sets the updated_by user. This is a domain state transition that occurs when an entity is modified.

pub fn mark_deleted(&mut self, deleted_by: Option<Uuid>)

Mark the record as soft deleted

Sets the deleted_at timestamp and deleted_by user. This is a domain state transition that occurs when an entity is soft deleted.

pub fn is_deleted(&self) -> bool

Check if the record is soft deleted

pub fn builder() -> MetadataBuilder

Create a builder for Metadata

pub fn to_json_value(&self) -> Result<Value, Error>

Convert to serde_json::Value for storage

pub fn from_json_value(value: Value) -> Result<Self, Error>

Convert from serde_json::Value from storage

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Metadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Metadata

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Metadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Metadata