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(Addressing::Table) .modify_column( ColumnDef::new(Addressing::Activity) .string() .null() ) .to_owned() ) .await?; Ok(()) } async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> { manager .alter_table( Table::alter() .table(Addressing::Table) .modify_column( ColumnDef::new(Addressing::Activity) .string() .not_null() .default("") ) .to_owned() ) .await?; Ok(()) } } #[derive(DeriveIden)] enum Addressing { Table, Activity, }