Safe Haskell	None
Language	Haskell2010

Database.PostgreSQL.PQTypes.ToSQL

Synopsis

Documentation

newtype ParamAllocator #

alloca-like producer of PGparam objects.

Constructors

ParamAllocator (forall r. (Ptr PGparam -> IO r) -> IO r)

class PQFormat t => ToSQL t where #

Class which represents "from Haskell type to SQL (libpqtypes) type" transformation.

Minimal complete definition

toSQL

Associated Types

type PQDest t :: * #

Destination type (used by libpqtypes).

Methods

toSQL :: t -> ParamAllocator -> (Ptr (PQDest t) -> IO r) -> IO r #

Put supplied value into inner PGparam.

Instances

ToSQL Bool #
Associated Types type PQDest Bool :: * # Methods toSQL :: Bool -> ParamAllocator -> (Ptr (PQDest Bool) -> IO r) -> IO r #
ToSQL Char #
Associated Types type PQDest Char :: * # Methods toSQL :: Char -> ParamAllocator -> (Ptr (PQDest Char) -> IO r) -> IO r #
ToSQL Double #
Associated Types type PQDest Double :: * # Methods toSQL :: Double -> ParamAllocator -> (Ptr (PQDest Double) -> IO r) -> IO r #
ToSQL Float #
Associated Types type PQDest Float :: * # Methods toSQL :: Float -> ParamAllocator -> (Ptr (PQDest Float) -> IO r) -> IO r #
ToSQL Int #
Associated Types type PQDest Int :: * # Methods toSQL :: Int -> ParamAllocator -> (Ptr (PQDest Int) -> IO r) -> IO r #
ToSQL Int16 #
Associated Types type PQDest Int16 :: * # Methods toSQL :: Int16 -> ParamAllocator -> (Ptr (PQDest Int16) -> IO r) -> IO r #
ToSQL Int32 #
Associated Types type PQDest Int32 :: * # Methods toSQL :: Int32 -> ParamAllocator -> (Ptr (PQDest Int32) -> IO r) -> IO r #
ToSQL Int64 #
Associated Types type PQDest Int64 :: * # Methods toSQL :: Int64 -> ParamAllocator -> (Ptr (PQDest Int64) -> IO r) -> IO r #
ToSQL Word8 #
Associated Types type PQDest Word8 :: * # Methods toSQL :: Word8 -> ParamAllocator -> (Ptr (PQDest Word8) -> IO r) -> IO r #
ToSQL ByteString #
Associated Types type PQDest ByteString :: * # Methods toSQL :: ByteString -> ParamAllocator -> (Ptr (PQDest ByteString) -> IO r) -> IO r #
ToSQL ByteString #
Associated Types type PQDest ByteString :: * # Methods toSQL :: ByteString -> ParamAllocator -> (Ptr (PQDest ByteString) -> IO r) -> IO r #
ToSQL String #	Encodes underlying C string as UTF-8, so if you are working with a different encoding, you should not rely on this instance.
Associated Types type PQDest String :: * # Methods toSQL :: String -> ParamAllocator -> (Ptr (PQDest String) -> IO r) -> IO r #
ToSQL Text #	Encodes underlying C string as UTF-8, so if you are working with a different encoding, you should not rely on this instance.
Associated Types type PQDest Text :: * # Methods toSQL :: Text -> ParamAllocator -> (Ptr (PQDest Text) -> IO r) -> IO r #
ToSQL UTCTime #
Associated Types type PQDest UTCTime :: * # Methods toSQL :: UTCTime -> ParamAllocator -> (Ptr (PQDest UTCTime) -> IO r) -> IO r #
ToSQL Text #	Encodes underlying C string as UTF-8, so if you are working with a different encoding, you should not rely on this instance.
Associated Types type PQDest Text :: * # Methods toSQL :: Text -> ParamAllocator -> (Ptr (PQDest Text) -> IO r) -> IO r #
ToSQL LocalTime #
Associated Types type PQDest LocalTime :: * # Methods toSQL :: LocalTime -> ParamAllocator -> (Ptr (PQDest LocalTime) -> IO r) -> IO r #
ToSQL ZonedTime #
Associated Types type PQDest ZonedTime :: * # Methods toSQL :: ZonedTime -> ParamAllocator -> (Ptr (PQDest ZonedTime) -> IO r) -> IO r #
ToSQL TimeOfDay #
Associated Types type PQDest TimeOfDay :: * # Methods toSQL :: TimeOfDay -> ParamAllocator -> (Ptr (PQDest TimeOfDay) -> IO r) -> IO r #
ToSQL Day #
Associated Types type PQDest Day :: * # Methods toSQL :: Day -> ParamAllocator -> (Ptr (PQDest Day) -> IO r) -> IO r #
ToSQL Interval #
Associated Types type PQDest Interval :: * # Methods toSQL :: Interval -> ParamAllocator -> (Ptr (PQDest Interval) -> IO r) -> IO r #
ToSQL XML #
Associated Types type PQDest XML :: * # Methods toSQL :: XML -> ParamAllocator -> (Ptr (PQDest XML) -> IO r) -> IO r #
ToSQL t => ToSQL (Maybe t) #
Associated Types type PQDest (Maybe t) :: * # Methods toSQL :: Maybe t -> ParamAllocator -> (Ptr (PQDest (Maybe t)) -> IO r) -> IO r #
ToSQL (JSONB ByteString) #
Associated Types type PQDest (JSONB ByteString) :: * # Methods toSQL :: JSONB ByteString -> ParamAllocator -> (Ptr (PQDest (JSONB ByteString)) -> IO r) -> IO r #
ToSQL (JSONB ByteString) #
Associated Types type PQDest (JSONB ByteString) :: * # Methods toSQL :: JSONB ByteString -> ParamAllocator -> (Ptr (PQDest (JSONB ByteString)) -> IO r) -> IO r #
ToSQL (JSONB Value) #
Associated Types type PQDest (JSONB Value) :: * # Methods toSQL :: JSONB Value -> ParamAllocator -> (Ptr (PQDest (JSONB Value)) -> IO r) -> IO r #
ToSQL (JSON ByteString) #
Associated Types type PQDest (JSON ByteString) :: * # Methods toSQL :: JSON ByteString -> ParamAllocator -> (Ptr (PQDest (JSON ByteString)) -> IO r) -> IO r #
ToSQL (JSON ByteString) #
Associated Types type PQDest (JSON ByteString) :: * # Methods toSQL :: JSON ByteString -> ParamAllocator -> (Ptr (PQDest (JSON ByteString)) -> IO r) -> IO r #
ToSQL (JSON Value) #
Associated Types type PQDest (JSON Value) :: * # Methods toSQL :: JSON Value -> ParamAllocator -> (Ptr (PQDest (JSON Value)) -> IO r) -> IO r #
CompositeToSQL t => ToSQL (Composite t) #
Associated Types type PQDest (Composite t) :: * # Methods toSQL :: Composite t -> ParamAllocator -> (Ptr (PQDest (Composite t)) -> IO r) -> IO r #
CompositeToSQL t => ToSQL (CompositeArray2 t) #
Associated Types type PQDest (CompositeArray2 t) :: * # Methods toSQL :: CompositeArray2 t -> ParamAllocator -> (Ptr (PQDest (CompositeArray2 t)) -> IO r) -> IO r #
ToSQL t => ToSQL (Array2 t) #
Associated Types type PQDest (Array2 t) :: * # Methods toSQL :: Array2 t -> ParamAllocator -> (Ptr (PQDest (Array2 t)) -> IO r) -> IO r #
CompositeToSQL t => ToSQL (CompositeArray1 t) #
Associated Types type PQDest (CompositeArray1 t) :: * # Methods toSQL :: CompositeArray1 t -> ParamAllocator -> (Ptr (PQDest (CompositeArray1 t)) -> IO r) -> IO r #
ToSQL t => ToSQL (Array1 t) #
Associated Types type PQDest (Array1 t) :: * # Methods toSQL :: Array1 t -> ParamAllocator -> (Ptr (PQDest (Array1 t)) -> IO r) -> IO r #

putAsPtr :: Storable t => t -> (Ptr t -> IO r) -> IO r #

Function that abstracts away common elements of most ToSQL instance definitions to make them easier to write and less verbose.