Replace persistent by sqlite-simple

1 files changed, 15 insertions, 8 deletions

diff --git a/src/server/Model/Frequency.hs b/src/server/Model/Frequency.hs
index a6ba55c..f9958e1 100644
--- a/src/server/Model/Frequency.hs
+++ b/src/server/Model/Frequency.hs
@@ -6,21 +6,28 @@ module Model.Frequency
   ( Frequency(..)
   ) where
 
-import GHC.Generics
-
-import Web.Scotty
-
-import Database.Persist.TH
-
 import Data.Aeson
+import Database.SQLite.Simple (SQLData(SQLText))
+import Database.SQLite.Simple.FromField (fieldData, FromField(fromField))
+import Database.SQLite.Simple.Ok (Ok(Ok, Errors))
+import Database.SQLite.Simple.ToField (ToField(toField))
+import GHC.Generics
+import qualified Data.Text as T
+import Web.Scotty (parseParam, Parsable, readEither)
 
 data Frequency =
   Punctual
   | Monthly
   deriving (Eq, Show, Read, Generic)
 
-derivePersistField "Frequency"
-
 instance Parsable Frequency where parseParam = readEither
 instance FromJSON Frequency
 instance ToJSON Frequency
+
+instance FromField Frequency where
+  fromField field = case fieldData field of
+    SQLText text -> Ok (read (T.unpack text) :: Frequency)
+    _ -> Errors [error "SQLText field required for frequency"]
+
+instance ToField Frequency where
+  toField frequency = SQLText . T.pack . show $ frequency