1use crate::db::{BufferId, ChannelId};
 2use sea_orm::entity::prelude::*;
 3
 4#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
 5#[sea_orm(table_name = "buffers")]
 6pub struct Model {
 7    #[sea_orm(primary_key)]
 8    pub id: BufferId,
 9    pub epoch: i32,
10    pub channel_id: ChannelId,
11    pub latest_operation_epoch: Option<i32>,
12    pub latest_operation_lamport_timestamp: Option<i32>,
13    pub latest_operation_replica_id: Option<i32>,
14}
15
16#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
17pub enum Relation {
18    #[sea_orm(has_many = "super::buffer_operation::Entity")]
19    Operations,
20    #[sea_orm(has_many = "super::buffer_snapshot::Entity")]
21    Snapshots,
22    #[sea_orm(
23        belongs_to = "super::channel::Entity",
24        from = "Column::ChannelId",
25        to = "super::channel::Column::Id"
26    )]
27    Channel,
28}
29
30impl Related<super::buffer_operation::Entity> for Entity {
31    fn to() -> RelationDef {
32        Relation::Operations.def()
33    }
34}
35
36impl Related<super::buffer_snapshot::Entity> for Entity {
37    fn to() -> RelationDef {
38        Relation::Snapshots.def()
39    }
40}
41
42impl Related<super::channel::Entity> for Entity {
43    fn to() -> RelationDef {
44        Relation::Channel.def()
45    }
46}
47
48impl ActiveModelBehavior for ActiveModel {}