Setting up Scotty, Persistent, Clay, Blaze, Esqueleto, Elm

1 files changed, 36 insertions, 0 deletions

diff --git a/src/server/Model/Payment.hs b/src/server/Model/Payment.hs
new file mode 100644
index 0000000..b35e13c
--- /dev/null
+++ b/src/server/Model/Payment.hs
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+module Model.Payment
+  ( getPayments
+  , insertPayment
+  ) where
+
+import Data.Text (Text)
+import Data.Time.Clock (getCurrentTime)
+
+import Control.Monad.IO.Class (liftIO)
+
+import Database.Persist
+import Database.Esqueleto
+import qualified Database.Esqueleto as E
+
+import Model.Database
+import qualified Model.Json.Payment as P
+
+getPayments :: Persist [P.Payment]
+getPayments = do
+  xs <- select $
+        from $ \(payment `InnerJoin` user) -> do
+        on (payment ^. PaymentUserId E.==. user ^. UserId)
+        return (payment, user)
+  return (map getJsonPayment xs)
+
+getJsonPayment :: (Entity Payment, Entity User) -> P.Payment
+getJsonPayment (paymentEntity, userEntity) =
+  let payment = entityVal paymentEntity
+      user = entityVal userEntity
+  in  P.Payment (paymentCreation payment) (paymentName payment) (paymentCost payment) (userName user)
+
+
+insertPayment :: UserId -> Text -> Int -> Persist PaymentId
+insertPayment userId name cost = do
+  now <- liftIO getCurrentTime
+  insert $ Payment userId now name cost