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MigrationLedger

a3s_orm::migration

Trait MigrationLedger 

Source 
pub trait MigrationLedger: Send + Sync {
    type Error: Error + Send + Sync + 'static;

    // Required method
    fn applied_migrations<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<AppliedMigration>, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

Reads the migration ledger without creating or changing database objects.

Serving processes use this boundary to prove that their required schema is already present while retaining a database role that has no DDL authority.

Required Associated Types§

Source

type Error: Error + Send + Sync + 'static

Required Methods§

Source

fn applied_migrations<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<AppliedMigration>, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§