class SomeSnippet {
implicit def boxOpener(in: Box[NodeSeq]): NodeSeq = in openOr
{S.error("Inactive"); S.redirectTo(S.referer openOr "/")}
def showA(xhtml: NodeSeq): NodeSeq =
for {
id <- S.param("id")
info <- session1.get(id)
} yield bind("foo", xhtml, "thing" -> info.x)
}
The implicit makes the Box[NodeSeq] turn into a NodeSeq or redirects the
user.
Thanks,
David
On Sat, May 30, 2009 at 6:12 PM, Bryan <germ...@gmail.com> wrote:
>
> If Foo has 5 methods that I need to show in a Snippet (scattered
> throughout the template), what's a good way to S.error("inactive");
> S.redirectTo("/") whenever Box[Foo] cannot be opened because it is not
> Full, without having to write a bunch of boiler plate code for each of
> the show methods I have defined below.
>
> class SomeSnippet {
> val foo: Box[Foo] = tryo(session1.get(S.param("id").getOrElse("")))
>
> def showA(xhtml: NodeSeq): NodeSeq = ...
> def showB(xhtml: NodeSeq): NodeSeq = ...
> def showC(xhtml: NodeSeq): NodeSeq = ...
> def showD(xhtml: NodeSeq): NodeSeq = ...
> def showE(xhtml: NodeSeq): NodeSeq = ...
> }
>
> Thanks,
> Bryan
> >
>
--
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
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