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(User::Table) .add_column_if_not_exists(ColumnDef::new(User::ApJson).string()) .to_owned(), ) .await } async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> { manager .alter_table( Table::alter() .table(User::Table) .drop_column(User::ApJson) .to_owned(), ) .await } } #[derive(DeriveIden)] pub enum User { Table, ApJson, }