From 9722abe7144d4a32e7a44653426081380d65685e Mon Sep 17 00:00:00 2001
From: Clint Adams <clint@softwarefreedom.org>
Date: Tue, 1 Apr 2014 10:19:30 -0400
Subject: Add Assistant table

---
 Foundation.hs | 13 +++++++++++++
 config/models |  6 ++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Foundation.hs b/Foundation.hs
index 2d8f748..915230c 100644
--- a/Foundation.hs
+++ b/Foundation.hs
@@ -150,6 +150,19 @@ isAdmin = do
         Nothing -> AuthenticationRequired
         Just (Entity u v) -> if userIsAdmin v then Authorized else Unauthorized "You must be an admin"
 
+isUserOrAssistant :: UserId -> Handler AuthResult
+isUserOrAssistant t = do
+    ma <- maybeAuth
+    case ma of
+        Nothing -> return AuthenticationRequired
+        Just (Entity u _) -> case t == u of
+            True -> return Authorized
+            False -> do
+                mass <- runDB $ selectFirst [AssistantAssistant ==. u, AssistantAssisted ==. t] []
+                case mass of
+                    Nothing -> return $ Unauthorized "That ain't your page."
+                    Just _ -> return Authorized
+
 -- How to run database actions.
 instance YesodPersist App where
     type YesodPersistBackend App = SqlPersistT
diff --git a/config/models b/config/models
index 3240cfd..54723f0 100644
--- a/config/models
+++ b/config/models
@@ -21,5 +21,7 @@ TimeCategory
     disabled Bool
     UniqueTimeCategory name
     deriving Show Eq
-
- -- By default this file is used in Model.hs (which is imported by Foundation.hs)
+Assistant
+    assistant UserId
+    assisted UserId
+    deriving Show Eq
-- 
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