use sea_orm_migration::prelude::*; #[derive(DeriveMigrationName)] pub struct Migration; #[async_trait::async_trait] impl MigrationTrait for Migration { async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> { manager .alter_table( Table::alter() .table(Objects::Table) .add_column(ColumnDef::new(Objects::Updated).date_time().null()) .to_owned() ) .await?; Ok(()) } async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> { manager .alter_table( Table::alter() .table(Objects::Table) .drop_column(Objects::Updated) .to_owned() ) .await?; Ok(()) } } #[derive(DeriveIden)] enum Objects { Table, Updated, }