Billy Chan 94403b5659
migration: schema helper (#2099)
* Adapted loco-rs/schema.rs

* avoid `&mut ColumnDef` after upgraded to sea-query 0.31.0

* refactoring

* rewrite schema.rs

* revert

* fmt

* fix

* loco_example: pin loco-rs version

* refactor
2024-02-06 14:10:36 +08:00

35 lines
839 B
Rust

#[cfg(feature = "cli")]
pub mod cli;
pub mod connection;
pub mod manager;
pub mod migrator;
pub mod prelude;
pub mod schema;
pub mod seaql_migrations;
pub mod util;
pub use connection::*;
pub use manager::*;
pub use migrator::*;
pub use async_trait;
pub use sea_orm;
pub use sea_orm::sea_query;
pub use sea_orm::DbErr;
pub trait MigrationName {
fn name(&self) -> &str;
}
/// The migration definition
#[async_trait::async_trait]
pub trait MigrationTrait: MigrationName + Send + Sync {
/// Define actions to perform when applying the migration
async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr>;
/// Define actions to perform when rolling back the migration
async fn down(&self, _manager: &SchemaManager) -> Result<(), DbErr> {
Err(DbErr::Migration("We Don't Do That Here".to_owned()))
}
}