Safe Haskell	None
Language	Haskell2010

Drifter.PostgreSQL

Synopsis

Documentation

Instances

Drifter PGMigration #
Methods migrateSingle :: DBConnection PGMigration -> Change PGMigration -> IO (Either String ()) #
data Method PGMigration #
data Method PGMigration = MigrationQuery Query \| MigrationCode (Connection -> IO (Either String ()))
data DBConnection PGMigration #
data DBConnection PGMigration = DBConnection PGMigrationConnection

data family Method a :: * #

Instances

data Method PGMigration #
data Method PGMigration = MigrationQuery Query \| MigrationCode (Connection -> IO (Either String ()))

data family DBConnection a :: * #

Instances

data DBConnection PGMigration #
data DBConnection PGMigration = DBConnection PGMigrationConnection

Constructors

ChangeHistory
Fields histId :: ChangeId histName :: ChangeName histDescription :: Maybe Description histTime :: UTCTime

Instances

Eq ChangeHistory #
Methods (==) :: ChangeHistory -> ChangeHistory -> Bool # (/=) :: ChangeHistory -> ChangeHistory -> Bool #
Ord ChangeHistory #
Methods compare :: ChangeHistory -> ChangeHistory -> Ordering # (<) :: ChangeHistory -> ChangeHistory -> Bool # (<=) :: ChangeHistory -> ChangeHistory -> Bool # (>) :: ChangeHistory -> ChangeHistory -> Bool # (>=) :: ChangeHistory -> ChangeHistory -> Bool # max :: ChangeHistory -> ChangeHistory -> ChangeHistory # min :: ChangeHistory -> ChangeHistory -> ChangeHistory #
Show ChangeHistory #
Methods showsPrec :: Int -> ChangeHistory -> ShowS # show :: ChangeHistory -> String # showList :: [ChangeHistory] -> ShowS #
FromRow ChangeHistory #
Methods fromRow :: RowParser ChangeHistory #

Takes the list of all migrations, removes the ones that have already run and runs them. Use this instead of migrate.

Get all changes from schema_migrations table for all the migrations that have previously run.

Get just the names of all changes from schema_migrations for migrations that have previously run.