diff --git a/happs-tutorial.cabal b/happs-tutorial.cabal --- a/happs-tutorial.cabal +++ b/happs-tutorial.cabal @@ -1,15 +1,12 @@ Name: happs-tutorial -Version: 0.9.0 +Version: 0.9.1 Synopsis: A Happstack Tutorial that is its own web 2.0-type demo. Description: A nice way to learn how to build web sites with Happstack - License: BSD3 License-file: LICENSE Author: Thomas Hartman, Eelco Lempsink, Creighton Hogg - Maintainer: Creighton Hogg Copyright: 2008 Thomas Hartman, 2009 Thomas Hartman & Creighton Hogg - Stability: Experimental Category: Web Build-type: Simple @@ -46,10 +43,10 @@ MiscMap ControllerStressTests View - ghc-options: -Wall -O2 + ghc-options: -Wall Build-Depends: base , HStringTemplate >= 0.4.0 && < 0.5.0 - , HStringTemplateHelpers > 0.0.0 && < 1.0.0 + , HStringTemplateHelpers >= 0.0.11 && < 1.0.0 , mtl >= 1.1.0.0 && < 2.0.0.0 , bytestring >= 0.9.0.0 && < 0.10.0.0 , happstack >= 0.3 && < 0.4 diff --git a/templates/formsanddata.st b/templates/formsanddata.st deleted file mode 100644 --- a/templates/formsanddata.st +++ /dev/null @@ -1,23 +0,0 @@ -

GET, POST, and FromData

-

We've covered how to serve basic HTML with Happstack, in a number of different ways. What we haven't yet covered -is what to do with form data. In principle, you could dig into the request and try to pull out the parameters. That's -not the Happstack way, though.

-

Instead, you can use the type class FromData and the functions getData and withData. -A simple example can be found in GetExample.hs. This example uses HSP to build -the forms, for simple convenience.

-

ghci>:i FromData -
class FromData a where fromData :: RqData a -
-- Defined in Happstack.Server.SimpleHTTP -
instance [overlap ok] (FromData a, FromData b) => FromData (a, b) -
-- Defined in Happstack.Server.SimpleHTTP -
instance [overlap ok] (FromData a, FromData b, FromData c) => FromData (a, b, c) -
-- Defined in Happstack.Server.SimpleHTTP -
instance [overlap ok] (FromData a,FromData b,FromData c,FromData d) => FromData (a, b, c, d) -
-- Defined in Happstack.Server.SimpleHTTP -
instance [overlap ok] (FromData a) => FromData (Maybe a) -
-- Defined in Happstack.Server.SimpleHTTP -

-

An important note about RqData is that it is a Monad and a MonadPlus, so between this type class machinery and -the helper function look, you should be able to define your own instances of FromData for your own types. -Again, the simple example up above should provide some guidance for this.

-

Next we cover uploading files