Safe Haskell	None
Language	Haskell2010

Preql.Wire.Query

Documentation

queryWith :: RowEncoder p -> RowDecoder r -> Connection -> Query -> p -> IO (Either QueryError (Vector r)) Source #

queryWith_ :: RowEncoder p -> Connection -> Query -> p -> IO (Either QueryError ()) Source #

execParams :: RowEncoder p -> Connection -> ByteString -> p -> IO (Either QueryError Result) Source #

query :: (ToSql p, FromSql r) => Connection -> Query -> p -> IO (Either QueryError (Vector r)) Source #

query_ :: ToSql p => Connection -> Query -> p -> IO (Either QueryError ()) Source #

connectionError :: Connection -> Maybe a -> IO (Either Text a) Source #

lookupType :: Connection -> PgType -> IO (Either QueryError Oid) Source #

data IsolationLevel Source #

Constructors

ReadCommitted
RepeatableRead
Serializable

Instances

Instances details

Bounded IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods minBound :: IsolationLevel # maxBound :: IsolationLevel #
Enum IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods succ :: IsolationLevel -> IsolationLevel # pred :: IsolationLevel -> IsolationLevel # toEnum :: Int -> IsolationLevel # fromEnum :: IsolationLevel -> Int # enumFrom :: IsolationLevel -> [IsolationLevel] # enumFromThen :: IsolationLevel -> IsolationLevel -> [IsolationLevel] # enumFromTo :: IsolationLevel -> IsolationLevel -> [IsolationLevel] # enumFromThenTo :: IsolationLevel -> IsolationLevel -> IsolationLevel -> [IsolationLevel] #
Eq IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods (==) :: IsolationLevel -> IsolationLevel -> Bool # (/=) :: IsolationLevel -> IsolationLevel -> Bool #
Ord IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods compare :: IsolationLevel -> IsolationLevel -> Ordering # (<) :: IsolationLevel -> IsolationLevel -> Bool # (<=) :: IsolationLevel -> IsolationLevel -> Bool # (>) :: IsolationLevel -> IsolationLevel -> Bool # (>=) :: IsolationLevel -> IsolationLevel -> Bool # max :: IsolationLevel -> IsolationLevel -> IsolationLevel # min :: IsolationLevel -> IsolationLevel -> IsolationLevel #
Read IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods readsPrec :: Int -> ReadS IsolationLevel # readList :: ReadS [IsolationLevel] # readPrec :: ReadPrec IsolationLevel # readListPrec :: ReadPrec [IsolationLevel] #
Show IsolationLevel Source #
Instance details Defined in Preql.Wire.Query Methods showsPrec :: Int -> IsolationLevel -> ShowS # show :: IsolationLevel -> String # showList :: [IsolationLevel] -> ShowS #

begin :: Connection -> IsolationLevel -> IO (Either QueryError ()) Source #

commit :: Connection -> IO (Either QueryError ()) Source #

rollback :: Connection -> IO (Either QueryError ()) Source #