Method down

sea-orm-migration/src/migrator.rs:241–249

Rollback applied migrations

(db: C, steps: Option<u32>)

    /// Rollback applied migrations
    async fn down<'c, C>(db: C, steps: Option<u32>) -> Result<(), DbErr>
    where
        C: IntoSchemaManagerConnection<'c>,
    {
        exec_with_connection::<'_, _, _>(db, move |manager| {
            Box::pin(async move { exec_down::<Self>(manager, steps).await })
        })
        .await
    }
}

async fn exec_with_connection<'c, C, F>(db: C, f: F) -> Result<(), DbErr>