Get Rss module working with yesod-core 0.7

Yesod/Helpers/RssFeed.hs

@@ -1,4 +1,5 @@
 {-# LANGUAGE QuasiQuotes #-}
+{-# LANGUAGE CPP #-}
 -------------------------------------------------------------------------------
 --
 -- Module        : Yesod.Helpers.RssFeed
@@ -14,10 +15,14 @@ module Yesod.Helpers.RssFeed
     ( RssFeed (..)
     , RssFeedEntry (..)
     , rssFeed
+    , rssLink
     , RepRss (..)
     ) where
 
-import Yesod
+import Yesod.Handler
+import Yesod.Content
+import Yesod.Widget
+import Text.Hamlet
 import System.Locale    (defaultTimeLocale)
 import Data.Time.Clock  (UTCTime)
 import Data.Time.Format (formatTime)
@@ -87,3 +92,16 @@ format = formatTime defaultTimeLocale rfc822DateFormat
 --   validate, this one does.
 rfc822DateFormat :: String
 rfc822DateFormat = "%a, %d %b %Y %H:%M:%S %z"
+
+-- | Generates a link tag in the head of a widget.
+rssLink :: Route m
+        -> String -- ^ title
+        -> GWidget s m ()
+rssLink u title = addHamletHead
+#if __GLASGOW_HASKELL__ >= 700
+                [hamlet|
+#else
+                [$hamlet|
+#endif
+%link!href=@u@!type="application/rss+xml"!rel="alternate"!title=$title$
+|]

yesod-newsfeed.cabal

@@ -1,8 +1,8 @@
 name:            yesod-newsfeed
-version:         0.7.0.1
+version:         0.0.0
 license:         BSD3
 license-file:    LICENSE
-author:          Michael Snoyman <michael@snoyman.com>
+author:          Michael Snoyman, Patrick Brisbin
 maintainer:      Michael Snoyman <michael@snoyman.com>
 synopsis:        Helper functions and data types for producing Atom feeds.
 category:        Web, Yesod
@@ -16,6 +16,7 @@ library
                    , yesod-core                >= 0.7      && < 0.8
                    , time                      >= 1.1.4    && < 1.3
                    , hamlet                    >= 0.7      && < 0.8
+                   , old-locale                >= 1.0      && < 1.1
     exposed-modules: Yesod.Helpers.AtomFeed, Yesod.Helpers.RssFeed
     ghc-options:     -Wall