use sea_orm::entity::prelude::*; use crate::db::{FlagId, UserId}; #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]#[sea_orm(table_name = "user_features")]pub struct Model {    #[sea_orm(primary_key)]    pub user_id: UserId,    #[sea_orm(primary_key)]    pub feature_id: FlagId,} #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]pub enum Relation {    #[sea_orm(        belongs_to = "super::feature_flag::Entity",        from = "Column::FeatureId",        to = "super::feature_flag::Column::Id"    )]    Flag,    #[sea_orm(        belongs_to = "super::user::Entity",        from = "Column::UserId",        to = "super::user::Column::Id"    )]    User,} impl Related<super::feature_flag::Entity> for Entity {    fn to() -> RelationDef {        Relation::Flag.def()    }} impl Related<super::user::Entity> for Entity {    fn to() -> RelationDef {        Relation::User.def()    }} impl ActiveModelBehavior for ActiveModel {}