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 .create_table( Table::create() .table(Book::Table) .if_not_exists() .col( ColumnDef::new(Book::Id) .integer() .not_null() .auto_increment() .primary_key(), ) .col(ColumnDef::new(Book::Name).string().not_null().unique_key()) .to_owned(), ) .await } async fn down(&self, _manager: &SchemaManager) -> Result<(), DbErr> { Ok(()) } } #[derive(Iden)] pub enum Book { Table, Id, Name, }