yesod/Yesod.hs
Michael Snoyman adbc9e1868 Export toHtml
2011-04-15 07:56:08 +03:00

106 lines
2.8 KiB
Haskell

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE CPP #-}
-- | This module simply re-exports from other modules for your convenience.
module Yesod
( -- * Re-exports from yesod-core
module Yesod.Core
, module Yesod.Form
, module Yesod.Json
, module Yesod.Persist
-- * Running your application
, warp
, warpDebug
, develServer
-- * Commonly referenced functions/datatypes
, Application
, lift
, liftIO
, MonadControlIO
-- * Utilities
, showIntegral
, readIntegral
-- * Hamlet library
-- ** Hamlet
, hamlet
, xhamlet
, Hamlet
, Html
, renderHamlet
, renderHtml
, string
, preEscapedString
, cdata
, toHtml
-- ** Julius
, julius
, Julius
, renderJulius
-- ** Cassius
, cassius
, Cassius
, renderCassius
) where
import Yesod.Core
import Text.Hamlet
import Text.Cassius
import Text.Julius
import Yesod.Form
import Yesod.Json
import Yesod.Persist
import Network.Wai (Application)
import Network.Wai.Middleware.Debug
import Control.Monad.Trans.Class (lift)
import Control.Monad.IO.Class (liftIO)
import Control.Monad.IO.Control (MonadControlIO)
import Network.Wai.Handler.Warp (run)
import System.IO (stderr, hPutStrLn)
showIntegral :: Integral a => a -> String
showIntegral x = show (fromIntegral x :: Integer)
readIntegral :: Num a => String -> Maybe a
readIntegral s =
case reads s of
(i, _):_ -> Just $ fromInteger i
[] -> Nothing
-- | A convenience method to run an application using the Warp webserver on the
-- specified port. Automatically calls 'toWaiApp'.
warp :: (Yesod a, YesodDispatch a a) => Int -> a -> IO ()
warp port a = toWaiApp a >>= run port
-- | Same as 'warp', but also sends a message to stderr for each request, and
-- an \"application launched\" message as well. Can be useful for development.
warpDebug :: (Yesod a, YesodDispatch a a) => Int -> a -> IO ()
warpDebug port a = do
hPutStrLn stderr $ "Application launched, listening on port " ++ show port
toWaiApp a >>= run port . debug
-- | Run a development server, where your code changes are automatically
-- reloaded.
develServer :: Int -- ^ port number
-> String -- ^ module name holding the code
-> String -- ^ name of function providing a with-application
-> IO ()
develServer port modu func =
mapM_ putStrLn
[ "Due to issues with GHC 7.0.2, you must now run the devel server"
, "separately. To do so, ensure you have installed the "
, "wai-handler-devel package >= 0.2.1 and run:"
, concat
[ " wai-handler-devel "
, show port
, " "
, modu
, " "
, func
, " --yesod"
]
, ""
]