ZIm/crates/collab/src/db/queries/servers.rs

81 lines
2.4 KiB
Rust

use super::*;
impl Database {
pub async fn create_server(&self, environment: &str) -> Result<ServerId> {
self.transaction(|tx| async move {
let server = server::ActiveModel {
environment: ActiveValue::set(environment.into()),
..Default::default()
}
.insert(&*tx)
.await?;
Ok(server.id)
})
.await
}
pub async fn stale_room_ids(
&self,
environment: &str,
new_server_id: ServerId,
) -> Result<Vec<RoomId>> {
self.transaction(|tx| async move {
#[derive(Copy, Clone, Debug, EnumIter, DeriveColumn)]
enum QueryAs {
RoomId,
}
let stale_server_epochs = self
.stale_server_ids(environment, new_server_id, &tx)
.await?;
Ok(room_participant::Entity::find()
.select_only()
.column(room_participant::Column::RoomId)
.distinct()
.filter(
room_participant::Column::AnsweringConnectionServerId
.is_in(stale_server_epochs),
)
.into_values::<_, QueryAs>()
.all(&*tx)
.await?)
})
.await
}
pub async fn delete_stale_servers(
&self,
environment: &str,
new_server_id: ServerId,
) -> Result<()> {
self.transaction(|tx| async move {
server::Entity::delete_many()
.filter(
Condition::all()
.add(server::Column::Environment.eq(environment))
.add(server::Column::Id.ne(new_server_id)),
)
.exec(&*tx)
.await?;
Ok(())
})
.await
}
async fn stale_server_ids(
&self,
environment: &str,
new_server_id: ServerId,
tx: &DatabaseTransaction,
) -> Result<Vec<ServerId>> {
let stale_servers = server::Entity::find()
.filter(
Condition::all()
.add(server::Column::Environment.eq(environment))
.add(server::Column::Id.ne(new_server_id)),
)
.all(&*tx)
.await?;
Ok(stale_servers.into_iter().map(|server| server.id).collect())
}
}