From 11052951b74b9ad4b6a9412ae490086235f9154b Mon Sep 17 00:00:00 2001 From: Joris Date: Sun, 3 Jan 2021 13:40:40 +0100 Subject: Rewrite in Rust --- server/src/Model/Query.hs | 32 -------------------------------- 1 file changed, 32 deletions(-) delete mode 100644 server/src/Model/Query.hs (limited to 'server/src/Model/Query.hs') diff --git a/server/src/Model/Query.hs b/server/src/Model/Query.hs deleted file mode 100644 index 22ae95b..0000000 --- a/server/src/Model/Query.hs +++ /dev/null @@ -1,32 +0,0 @@ -module Model.Query - ( Query(..) - , run - ) where - -import Data.Functor (Functor) -import Database.SQLite.Simple (Connection) -import qualified Database.SQLite.Simple as SQLite - -data Query a = Query (Connection -> IO a) - -instance Functor Query where - fmap f (Query call) = Query (fmap f . call) - -instance Applicative Query where - pure x = Query (const $ return x) - (Query callF) <*> (Query callX) = Query (\conn -> do - x <- callX conn - f <- callF conn - return (f x)) - -instance Monad Query where - (Query callX) >>= f = Query (\conn -> do - x <- callX conn - case f x of Query callY -> callY conn) - -run :: Query a -> IO a -run (Query call) = do - conn <- SQLite.open "database" - result <- call conn - _ <- SQLite.close conn - return result -- cgit v1.2.3