Hoogle Search
Within LTS Haskell 24.64 (ghc-9.10.3)
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esqueleto Database.Esqueleto.Legacy Same as getJust, but returns an Entity instead of just the record.
Example usage
With schema-1 and dataset-1,getJustEntitySpj :: MonadIO m => ReaderT SqlBackend m (Entity User) getJustEntitySpj = getJustEntity spjId
spjEnt <- getJustEntitySpj
The above query when applied on dataset-1, will get this entity:+----+------+-----+ | id | name | age | +----+------+-----+ | 1 | SPJ | 40 | +----+------+-----+
holdJust :: forall (m :: Type -> Type) a . (Monad m, Data a) => Cell m (Maybe a) (Maybe a)essence-of-live-coding LiveCoding.Cell.Util Like hold, but returns Nothing until it is initialised by a Just a value.
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focus Focus Same as all of the following expressions: f g -> fmap (fmap f) lookup <* adjust g f g -> liftStateFn (f &&& g) f g -> liftStateFn ((,) $ f * g)
adjust :: forall (m :: Type -> Type) a . Monad m => (a -> a) -> Focus a m ()focus Focus Reproduces the behaviour of Data.Map.adjust.
adjustM :: Monad m => (a -> m a) -> Focus a m ()focus Focus A monadic version of adjust.
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ghc-lib-parser GHC.Builtin.Types No documentation available.
mapAdjust :: (v -> v) -> Label -> LabelMap v -> LabelMap vghc-lib-parser GHC.Cmm.Dataflow.Label No documentation available.
mkJustExpr :: Type -> CoreExpr -> CoreExprghc-lib-parser GHC.Core.Make Makes a Just from a value of the specified type
adjustDTyConEnv :: (a -> a) -> DTyConEnv a -> TyCon -> DTyConEnv aghc-lib-parser GHC.Core.TyCon.Env No documentation available.
expectJust :: HasDebugCallStack => String -> Maybe a -> aghc-lib-parser GHC.Data.Maybe No documentation available.