database-migrate-0.0.3: Database versioning and migration

Safe Haskell	Safe-Infered

Database.Migrate.Core

Documentation

data MigrationId Source

Constructors

MigrationId
Fields extract :: Text

Instances

Eq MigrationId
Ord MigrationId
Show MigrationId
FromField MigrationId
ToField MigrationId

type Ddl = Text Source

data Migration Source

Constructors

Migration
Fields migration :: MigrationId up :: Text down :: Text upsource :: Maybe FilePath downsource :: Maybe FilePath

Instances

Eq Migration
Ord Migration
Show Migration

data Context Source

Constructors

Context
Fields succeeded :: [MigrationId] failed :: MigrationId msg :: Text rolledback :: Bool

Instances

Eq Context
Show Context

type MigrationResultT = EitherT Context Source

class Monad m => MigrateDatabase m c whereSource

Methods

initialize :: c -> m ()Source

runMigrations :: c -> (Migration -> Ddl) -> [Migration] -> MigrationResultT m [MigrationId]Source

getMigrations :: c -> m [MigrationId]Source

Instances

MigrateDatabase IO Connection

pick :: [Migration] -> [MigrationId] -> [Migration]Source

latest :: MigrateDatabase m c => c -> [Migration] -> MigrationResultT m [MigrationId]Source

find :: FilePath -> EitherT String IO [Migration]Source

migrationids :: FilePath -> [FilePath] -> IO [String]Source

readFile' :: FilePath -> IO String Source

hGetContents' :: Handle -> IO String Source