Struct LinkEntity 

pub struct LinkEntity {
    pub id: Uuid,
    pub entity_type: String,
    pub created_at: DateTime<Utc>,
    pub updated_at: DateTime<Utc>,
    pub deleted_at: Option<DateTime<Utc>>,
    pub status: String,
    pub tenant_id: Option<Uuid>,
    pub link_type: String,
    pub source_id: Uuid,
    pub target_id: Uuid,
    pub metadata: Option<Value>,
}

A polymorphic link between two entities

Links follow the Entity model with base fields (id, type, timestamps, status) plus relationship-specific fields (source_id, target_id, link_type).

Fields

id: Uuid

Unique identifier for this link

entity_type: String

Entity type (always “link” for base links)

created_at: DateTime<Utc>

When this link was created

updated_at: DateTime<Utc>

When this link was last updated

deleted_at: Option<DateTime<Utc>>

When this link was soft-deleted (if applicable)

status: String

Status of the link

tenant_id: Option<Uuid>

Optional tenant ID for multi-tenant isolation

When set, this link belongs to a specific tenant. When None, the link is treated as system-wide or single-tenant.

link_type: String

The type of relationship (e.g., “owner”, “driver”, “worker”)

source_id: Uuid

The ID of the source entity

target_id: Uuid

The ID of the target entity

metadata: Option<Value>

Optional metadata for the relationship

Implementations

impl LinkEntity

pub fn new( link_type: impl Into<String>, source_id: Uuid, target_id: Uuid, metadata: Option<Value>, ) -> Self

Create a new link without tenant context

For multi-tenant applications, use new_with_tenant() instead.

pub fn new_with_tenant( tenant_id: Uuid, link_type: impl Into<String>, source_id: Uuid, target_id: Uuid, metadata: Option<Value>, ) -> Self

Create a new link with tenant context for multi-tenant applications

Example

use uuid::Uuid;
use this::core::link::LinkEntity;

let tenant_id = Uuid::new_v4();
let link = LinkEntity::new_with_tenant(
    tenant_id,
    "has_invoice",
    order_id,
    invoice_id,
    None,
);
assert_eq!(link.tenant_id, Some(tenant_id));

pub fn soft_delete(&mut self)

Soft delete this link

pub fn restore(&mut self)

Restore a soft-deleted link

pub fn touch(&mut self)

Update the updated_at timestamp

pub fn is_deleted(&self) -> bool

Check if the link is deleted

pub fn is_active(&self) -> bool

Check if the link is active

Trait Implementations

impl Clone for LinkEntity

fn clone(&self) -> LinkEntity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinkEntity

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LinkEntity

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for LinkEntity

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

where __S: Serializer,

Serialize this value into the given Serde serializer.