{-# LANGUAGE OverloadedStrings #-} -------------------------------------------------------------------------------- module Trips where -------------------------------------------------------------------------------- import Data.Function ((&)) import Database.SQLite.Simple import qualified Types as T -------------------------------------------------------------------------------- -- | Create a new `trip` in `dbFile`. create :: FilePath -> T.Trip -> IO () create dbFile trip = withConnection dbFile $ \conn -> execute conn "INSERT INTO Trips (username,destination,startDate,endDate,comment) VALUES (?,?,?,?,?)" (trip & T.tripFields) -- | Delete a trip from `dbFile` using its `tripPK` Primary Key. delete :: FilePath -> T.TripPK -> IO () delete dbFile tripPK = withConnection dbFile $ \conn -> do execute conn "DELETE FROM Trips WHERE username = ? AND destination = ? and startDate = ?" (tripPK & T.tripPKFields) -- | Return a list of all of the trips in `dbFile`. list :: FilePath -> IO [T.Trip] list dbFile = withConnection dbFile $ \conn -> query_ conn "SELECT * FROM Trips"