Struct PostgresAdapter

pub struct PostgresAdapter<'a> { /* private fields */ }

Adapter between schemer and PostgreSQL.

Implementations

impl<'a> PostgresAdapter<'a>

pub fn new( conn: &'a mut Client, table_name: Option<String>, ) -> PostgresAdapter<'a>

Construct a PostgreSQL schemer adapter.

table_name specifies the name of the table that schemer will use for storing metadata about applied migrations. If None, a default will be used.

let mut conn = postgres::Client::connect(
    "postgresql://postgres@localhost",
    postgres::NoTls).unwrap();
let adapter = schemer_postgres::PostgresAdapter::new(&mut conn, None);

pub fn init(&mut self) -> Result<(), PostgresError>

Initialize the schemer metadata schema. This must be called before using Migrator with this adapter. This is safe to call multiple times.

Trait Implementations

impl<'a> Adapter for PostgresAdapter<'a>

type MigrationType = dyn PostgresMigration

Type migrations must implement for this adapter.

type Error = Error

Type of errors returned by this adapter.

fn applied_migrations(&mut self) -> Result<HashSet<Uuid>, Self::Error>

Returns the set of IDs for migrations that have been applied.

fn apply_migration( &mut self, migration: &Self::MigrationType, ) -> Result<(), Self::Error>

Apply a single migration.

fn revert_migration( &mut self, migration: &Self::MigrationType, ) -> Result<(), Self::Error>

Revert a single migration.