1 files changed, 10 insertions, 8 deletions
diff --git a/src/client/Model/Payers.elm b/src/client/Model/Payers.elm
index 6550eaa..983e7b3 100644
--- a/src/client/Model/Payers.elm
+++ b/src/client/Model/Payers.elm
@@ -11,21 +11,23 @@ import Dict exposing (..)
 import List
 import Maybe
 
-type alias Payers = Dict String Int
+import Model.User exposing (UserId, userIdDecoder)
+
+type alias Payers = Dict UserId Int
 
 payersDecoder : Decoder Payers
 payersDecoder = Json.map Dict.fromList (list payerDecoder)
 
-payerDecoder : Decoder (String, Int)
+payerDecoder : Decoder (UserId, Int)
 payerDecoder =
   object2 (,)
-    ("userName" := string)
+    ("userId" := userIdDecoder)
     ("totalPayment" := int)
 
-updatePayers : Payers -> String -> Int -> Payers
-updatePayers payers userName amountDiff =
+updatePayers : Payers -> UserId -> Int -> Payers
+updatePayers payers userId amountDiff =
   Dict.update
-    userName
+    userId
     (\mbAmount ->
       case mbAmount of
         Just amount -> Just (amount + amountDiff)
@@ -34,7 +36,7 @@ updatePayers payers userName amountDiff =
     payers
 
 type alias ExceedingPayer =
-  { userName : String
+  { userId : UserId
   , amount : Int
   }
 
@@ -42,7 +44,7 @@ getOrderedExceedingPayers : Payers -> List ExceedingPayer
 getOrderedExceedingPayers payers =
   let orderedPayers =
         Dict.toList payers
-          |> List.map (\(userName, amount) -> ExceedingPayer userName amount)
+          |> List.map (\(userId, amount) -> ExceedingPayer userId amount)
           |> List.sortBy .amount
       maybeMinAmount =
         List.head orderedPayers