Preql.Wire.Query

Documentation

queryWith :: KnownNat (Width r) => RowEncoder p -> RowDecoder (Width r) r -> Connection -> Query (Width r) -> p -> IO (Either QueryError (Vector r))

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

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

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

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

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

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

data IsolationLevel

Constructors

ReadCommitted

RepeatableRead

Serializable

Instances

Bounded IsolationLevel

Defined in Preql.Wire.Query

Methods

minBound :: IsolationLevel

maxBound :: IsolationLevel

Enum IsolationLevel

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

Defined in Preql.Wire.Query

Methods

(==) :: IsolationLevel -> IsolationLevel -> Bool

(/=) :: IsolationLevel -> IsolationLevel -> Bool

Ord IsolationLevel

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

Defined in Preql.Wire.Query

Methods

readsPrec :: Int -> ReadS IsolationLevel

readList :: ReadS [IsolationLevel]

readPrec :: ReadPrec IsolationLevel

readListPrec :: ReadPrec [IsolationLevel]

Show IsolationLevel

Defined in Preql.Wire.Query

Methods

showsPrec :: Int -> IsolationLevel -> ShowS

show :: IsolationLevel -> String

showList :: [IsolationLevel] -> ShowS

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

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

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