Yam.Transaction

Documentation

type Transaction m = SqlPersistT (ReaderT DataSource m)

data DataSourceConfig

Constructors

DataSourceConfig

Fields

• dstype :: Text
• url :: Text
• user :: Text
• pass :: Text
• port :: Int
• thread :: Int

Instances

Show DataSourceConfig

Methods

showsPrec :: Int -> DataSourceConfig -> ShowS

show :: DataSourceConfig -> String

showList :: [DataSourceConfig] -> ShowS

FromJSON DataSourceConfig

Methods

parseJSON :: Value -> Parser DataSourceConfig

parseJSONList :: Value -> Parser [DataSourceConfig]

Default DataSourceConfig

Methods

def :: DataSourceConfig

data DataSourceProvider

Constructors

DataSourceProvider

Fields

• datasource :: Text
• currentSQL :: Text
• createConnectionPool :: DataSourceConfig -> LoggingT IO ConnectionPool

dataSource :: LoggerConfig -> DataSourceConfig -> [DataSourceProvider] -> IO DataSource

type DataSource = (DataSourceProvider, ConnectionPool)

runTrans :: MonadUnliftIO m => DataSource -> Transaction m a -> m a

query :: FromPersistValue a => Text -> [PersistValue] -> Transaction IO [a]

selectValue :: PersistField a => Text -> Transaction IO [a]

selectNow :: Transaction IO UTCTime

now :: DataSource -> IO UTCTime