Is there anyway to store related 1-m entities in sea orm for quering with graphql?

so, for example i have user entity which has related adverts (one user -> many adverts)

use async_graphql::{self, SimpleObject};
use chrono::NaiveDateTime;
use sea_orm::entity::prelude::*;

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, SimpleObject)]
#[sea_orm(table_name = "user")]
#[graphql(name = "User")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: i32,
    pub created_at: NaiveDateTime,
    pub updated_at: NaiveDateTime,
    pub name: String,
    pub surname: String,
    #[sea_orm(unique)]
    pub email: String,
    pub phone: String,
    pub balance: f32,
    #[graphql(visible = false)]
    pub password_hash: String,
    #[graphql(visible = false)]
    pub refresh_token: Option<String>,
    // pub adverts
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
    #[sea_orm(has_many = "super::advert::Entity")]
    Advert,
}

// `Related` trait has to be implemented by hand
impl Related<super::advert::Entity> for Entity {
    fn to() -> RelationDef {
        Relation::Advert.def()
    }
}

impl ActiveModelBehavior for ActiveModel {}

impl Entity {
    pub fn find_by_email(email: String) -> Select<Entity> {
        Self::find().filter(Column::Email.eq(email))
    }
}

advert:

use async_graphql::{self, SimpleObject};
use chrono::NaiveDateTime;
use sea_orm::entity::prelude::*;

#[derive(Clone, Debug, PartialEq, DeriveEntityModel, SimpleObject)]
#[sea_orm(table_name = "advert")]
#[graphql(name = "Advert")]
pub struct Model {
    #[sea_orm(primary_key)]
    pub id: i32,
    pub created_at: NaiveDateTime,
    pub updated_at: NaiveDateTime,
    pub available: bool,
    pub price: f32,
    pub location: String,
    pub user_id: i32,
    // pub adverts
}

#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
pub enum Relation {
    #[sea_orm(
        belongs_to = "super::user::Entity",
        from = "Column::UserId",
        to = "super::user::Column::Id"
    )]
    User,
}

impl Related<super::user::Entity> for Entity {
    fn to() -> RelationDef {
        Relation::User.def()
    }
}

impl ActiveModelBehavior for ActiveModel {}

and i want to query User but with all his adverts, is there a way to query it without defining new struct ?

#[derive(SimpleObject)]
#[graphql(name = "UserWithAdverts")]
pub struct UserWithAdverts {
    pub id: i32,
    pub name: String,
    pub surname: String,
    pub email: String,
    pub phone: String,
    adverts: Vec<advert::Model>,
}

maybe it’s a good method, but if i will have a million of different tables and relations, i will need to make 2 millions concatenated struct for my query methods.

this is a query that i wrote with first method

async fn get_user(
        &self,
        ctx: &async_graphql::Context<'_>,
        id: i32,
    ) -> Result<UserWithAdverts, async_graphql::Error> {
        let my_ctx = ctx.data::<Context>().unwrap();

        let user: Option<user::Model> = User::find_by_id(id).one(&my_ctx.db).await?;

        let user = match user {
            Some(user) => user,
            None => {
                return Err(async_graphql::Error::new(
                    "Wrong email or password".to_string(),
                ))
            }
        };

        let adverts: Vec<advert::Model> = user.find_related(Advert).all(&my_ctx.db).await?;
        println!("{:?}", adverts);

        // You can now access the database connection via `my_ctx.db`
        return Ok(UserWithAdverts {
            id: user.id,
            name: user.name,
            surname: user.surname,
            email: user.email,
            phone: user.phone,
            adverts: adverts,
        });
    }

i`m expecting something simillar like in typeorm where i can store related entities like this:

@ManyToOne(() => User, (author) => author.messages)
    author: User;

@OneToMany(() => Message, (message) => message.author)
    messages: Message[];

can i implement this with sea orm and async_graphq?