Hasql.CursorTransactionIO

Documentation

data CursorTransactionIO s a

A TransactionIO that also manages creation and deletion of Cursors

Instances

MonadState Int (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

get :: CursorTransactionIO s Int

put :: Int -> CursorTransactionIO s ()

state :: (Int -> (a, Int)) -> CursorTransactionIO s a

Monad (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

(>>=) :: CursorTransactionIO s a -> (a -> CursorTransactionIO s b) -> CursorTransactionIO s b

(>>) :: CursorTransactionIO s a -> CursorTransactionIO s b -> CursorTransactionIO s b

return :: a -> CursorTransactionIO s a

Functor (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

fmap :: (a -> b) -> CursorTransactionIO s a -> CursorTransactionIO s b

(<$) :: a -> CursorTransactionIO s b -> CursorTransactionIO s a

Applicative (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

pure :: a -> CursorTransactionIO s a

(<*>) :: CursorTransactionIO s (a -> b) -> CursorTransactionIO s a -> CursorTransactionIO s b

liftA2 :: (a -> b -> c) -> CursorTransactionIO s a -> CursorTransactionIO s b -> CursorTransactionIO s c

(*>) :: CursorTransactionIO s a -> CursorTransactionIO s b -> CursorTransactionIO s b

(<*) :: CursorTransactionIO s a -> CursorTransactionIO s b -> CursorTransactionIO s a

MonadIO (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

liftIO :: IO a -> CursorTransactionIO s a

MonadResource (CursorTransactionIO s)

Defined in Hasql.Private.CursorTransactionIO

Methods

liftResourceT :: ResourceT IO a -> CursorTransactionIO s a

data Cursor s a

A PostgresSQL cursor that produces results of type a when fetched

Instances

Functor (Cursor s)

Defined in Hasql.Private.CursorTransactionIO

Methods

fmap :: (a -> b) -> Cursor s a -> Cursor s b

(<$) :: a -> Cursor s b -> Cursor s a

declareCursorFor :: params -> Statement params result -> CursorTransactionIO s (Cursor s result)

Run a Statement using a cursor

fetchWithCursor :: Cursor s a -> CursorTransactionIO s a

Fetch results from a cursor