diff options
Diffstat (limited to 'src/Trips.hs')
-rw-r--r-- | src/Trips.hs | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/src/Trips.hs b/src/Trips.hs index ec52ec58fee9..022631219c62 100644 --- a/src/Trips.hs +++ b/src/Trips.hs @@ -14,12 +14,21 @@ 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. +-- | Attempt to get the trip record from `dbFile` under `tripKey`. +get :: FilePath -> T.TripPK -> IO (Maybe T.Trip) +get dbFile tripKey = withConnection dbFile $ \conn -> do + res <- query conn "SELECT username,destination,startDate,endDate,comment FROM Trips WHERE username = ? AND destination = ? AND startDate = ? LIMIT 1" + (T.tripPKFields tripKey) + case res of + [x] -> pure (Just x) + _ -> pure Nothing + +-- | Delete a trip from `dbFile` using its `tripKey` Primary Key. delete :: FilePath -> T.TripPK -> IO () -delete dbFile tripPK = +delete dbFile tripKey = withConnection dbFile $ \conn -> do execute conn "DELETE FROM Trips WHERE username = ? AND destination = ? and startDate = ?" - (tripPK |> T.tripPKFields) + (T.tripPKFields tripKey) -- | Return a list of all of the trips in `dbFile`. listAll :: FilePath -> IO [T.Trip] |