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(
==. ) :: forall v typ . PersistField typ => EntityField v typ -> typ -> Filter vclassy-prelude-yesod ClassyPrelude.Yesod Check for equality.
Examples
selectSPJ :: MonadIO m => ReaderT SqlBackend m [Entity User] selectSPJ = selectList [UserName ==. "SPJ" ] []
The above query when applied on dataset-1, will produce this:+-----+-----+-----+ |id |name |age | +-----+-----+-----+ |1 |SPJ |40 | +-----+-----+-----+
(
>. ) :: forall v typ . PersistField typ => EntityField v typ -> typ -> Filter vclassy-prelude-yesod ClassyPrelude.Yesod Greater-than check.
Examples
selectGreaterAge :: MonadIO m => ReaderT SqlBackend m [Entity User] selectGreaterAge = selectList [UserAge >. 40 ] []
The above query when applied on dataset-1, will produce this:+-----+-----+-----+ |id |name |age | +-----+-----+-----+ |2 |Simon|41 | +-----+-----+-----+
(
>=. ) :: forall v typ . PersistField typ => EntityField v typ -> typ -> Filter vclassy-prelude-yesod ClassyPrelude.Yesod Greater-than or equal check.
Examples
selectGreaterEqualAge :: MonadIO m => ReaderT SqlBackend m [Entity User] selectGreaterEqualAge = selectList [UserAge >=. 41 ] []
The above query when applied on dataset-1, will produce this:+-----+-----+-----+ |id |name |age | +-----+-----+-----+ |2 |Simon|41 | +-----+-----+-----+
(
||. ) :: [Filter v] -> [Filter v] -> [Filter v]classy-prelude-yesod ClassyPrelude.Yesod The OR of two lists of filters. For example:
selectList ([ PersonAge >. 25 , PersonAge <. 30 ] ||. [ PersonIncome >. 15000 , PersonIncome <. 25000 ]) []
will filter records where a person's age is between 25 and 30 or a person's income is between (15000 and 25000). If you are looking for an (&&.) operator to do (A AND B AND (C OR D)) you can use the (++) operator instead as there is no (&&.). For example:selectList ([ PersonAge >. 25 , PersonAge <. 30 ] ++ ([PersonCategory ==. 1] ||. [PersonCategory ==. 5])) []
will filter records where a person's age is between 25 and 30 and (person's category is either 1 or 5).(
*. ) :: Color -> Integer -> Colorclay Clay.Color No documentation available.
(
+. ) :: Color -> Integer -> Colorclay Clay.Color No documentation available.
(
-. ) :: Color -> Integer -> Colorclay Clay.Color No documentation available.
(
=.===<< ) :: Monad m => (a -> b -> c -> d -> e -> m f) -> m b -> a -> c -> d -> e -> m fcomposition-extra Control.Monad.Syntax.Five No documentation available.
(
==.==<< ) :: Monad m => (a -> b -> c -> d -> e -> m f) -> m c -> a -> b -> d -> e -> m fcomposition-extra Control.Monad.Syntax.Five No documentation available.
(
===.=<< ) :: Monad m => (a -> b -> c -> d -> e -> m f) -> m d -> a -> b -> c -> e -> m fcomposition-extra Control.Monad.Syntax.Five No documentation available.