haskell/esqueleto
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Merge pull request #31 from jcristovao/master

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sum function does not return the same type it receives
This commit is contained in:
Felipe Lessa 2014-03-04 09:08:34 -03:00
commit 9fdf296367
2 changed files with 11 additions and 5 deletions
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10
src/Database/Esqueleto/Internal/Language.hs
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@ -237,12 +237,12 @@ class (Functor query, Applicative query, Monad query) =>
(*.) :: PersistField a => expr (Value a) -> expr (Value a) -> expr (Value a)
random_ :: PersistField a => expr (Value a)
round_ :: (PersistField a, PersistField b) => expr (Value a) -> expr (Value b)
ceiling_ :: (PersistField a, PersistField b) => expr (Value a) -> expr (Value b)
floor_ :: (PersistField a, PersistField b) => expr (Value a) -> expr (Value b)
random_ :: (PersistField a, Num a) => expr (Value a)
round_ :: (PersistField a, Num a, PersistField b, Num b) => expr (Value a) -> expr (Value b)
ceiling_ :: (PersistField a, Num a, PersistField b, Num b) => expr (Value a) -> expr (Value b)
floor_ :: (PersistField a, Num a, PersistField b, Num b) => expr (Value a) -> expr (Value b)
sum_ :: (PersistField a) => expr (Value a) -> expr (Value (Maybe a))
sum_ :: (PersistField a, PersistField b) => expr (Value a) -> expr (Value (Maybe b))
min_ :: (PersistField a) => expr (Value a) -> expr (Value (Maybe a))
max_ :: (PersistField a) => expr (Value a) -> expr (Value (Maybe a))
avg_ :: (PersistField a, PersistField b) => expr (Value a) -> expr (Value (Maybe b))

6
test/Test.hs
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@ -323,7 +323,13 @@ main = do
ret <- select $
from $ \p->
return $ joinV $ sum_ (p ^. PersonAge)
#if defined(WITH_POSTGRESQL)
liftIO $ ret `shouldBe` [ Value $ Just (36 + 17 + 17 :: Rational ) ]
#elif defined(WITH_MYSQL)
liftIO $ ret `shouldBe` [ Value $ Just (36 + 17 + 17 :: Double ) ]
#else
liftIO $ ret `shouldBe` [ Value $ Just (36 + 17 + 17 :: Int) ]
#endif
it "works with avg_" $
run $ do