rel8-internal

Safe Haskell	None
Language	Haskell2010

Rel8.Internal.Schema.Result

Synopsis

type Result = Identity
null :: Result (Maybe a)
nullifier :: Spec a -> Result a -> Result (Nullify a)
unnullifier :: Spec a -> Result (Nullify a) -> Maybe (Result a)
vectorizer :: Functor f => Spec a -> f (Result a) -> Result (f a)
unvectorizer :: Functor f => Spec a -> Result (f a) -> f (Result a)

Documentation

type Result = Identity Source #

The Result context is the context used for decoded query results.

When a query is executed against a PostgreSQL database, Rel8 parses the returned rows, decoding each row into the Result context.

null :: Result (Maybe a) Source #

nullifier :: Spec a -> Result a -> Result (Nullify a) Source #

unnullifier :: Spec a -> Result (Nullify a) -> Maybe (Result a) Source #

vectorizer :: Functor f => Spec a -> f (Result a) -> Result (f a) Source #

unvectorizer :: Functor f => Spec a -> Result (f a) -> f (Result a) Source #