yesod/yesod-newsfeed/Yesod/Feed.hs
2012-01-05 15:27:16 +02:00

41 lines
1.2 KiB
Haskell

-------------------------------------------------------------------------------
--
-- Module : Yesod.Feed
-- Copyright : Patrick Brisbin
-- License : as-is
--
-- Maintainer : Patrick Brisbin <me@pbrisbin.com>
-- Stability : Stable
-- Portability : Portable
--
-- Generic Feed and Feed Entry data types that can be used as either an
-- Rss feed or an Atom feed (or both, or other).
--
-- Atom spec: <http://en.wikipedia.org/wiki/Atom_(standard)>
-- Rss spec: <http://www.rssboard.org/rss-specification>
--
-------------------------------------------------------------------------------
module Yesod.Feed
( newsFeed
, RepAtomRss (..)
, module Yesod.FeedTypes
) where
import Yesod.FeedTypes
import Yesod.AtomFeed
import Yesod.RssFeed
import Yesod.Content (HasReps (chooseRep), typeAtom, typeRss)
import Yesod.Core (Route, GHandler)
data RepAtomRss = RepAtomRss RepAtom RepRss
instance HasReps RepAtomRss where
chooseRep (RepAtomRss (RepAtom a) (RepRss r)) = chooseRep
[ (typeAtom, a)
, (typeRss, r)
]
newsFeed :: Feed (Route master) -> GHandler sub master RepAtomRss
newsFeed f = do
a <- atomFeed f
r <- rssFeed f
return $ RepAtomRss a r