use sea_orm::entity::prelude::*; use crate::db::FlagId; #[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]#[sea_orm(table_name = "feature_flags")]pub struct Model {    #[sea_orm(primary_key)]    pub id: FlagId,    pub flag: String,    pub enabled_for_all: bool,} #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]pub enum Relation {    #[sea_orm(has_many = "super::user_feature::Entity")]    UserFeature,} impl Related<super::user_feature::Entity> for Entity {    fn to() -> RelationDef {        Relation::UserFeature.def()    }} impl ActiveModelBehavior for ActiveModel {} pub struct FlaggedUsers; impl Linked for FlaggedUsers {    type FromEntity = Entity;     type ToEntity = super::user::Entity;     fn link(&self) -> Vec<RelationDef> {        vec![            super::user_feature::Relation::Flag.def().rev(),            super::user_feature::Relation::User.def(),        ]    }}