Marius, thanks for the code sample. I read your mails about that usage of
the redirectTo method on the list before but was confused how to use it. I
wish there was a way to hide function's hash code from the URL without
losing state.
Cheers,
Sergey

On Fri, Jan 30, 2009 at 10:40 AM, Marius <marius.dan...@gmail.com> wrote:

>
>
>
> On Jan 30, 9:36 am, Marius <marius.dan...@gmail.com> wrote:
> > On Jan 29, 10:54 pm, Sergey Andreev <andser...@gmail.com> wrote:
> >
> >
> >
> > > Hi Liftlers,
> > > I am migrating one of my application to the lift as a way to learn it
> and i
> > > would like to ask a question.
> >
> > > After submitting a form i would like to do a redirect and show the
> submitted
> > > values on the other template. I have 2 templates and i use the same
> snippet
> > > in both of them to render a dynamic content.
> > > As far as i understand there are 2 ways to make it work: saving state
> using
> > > SessionVars(which works for me) or extending StatefulSnippet and
> calling
> > > this.redirectTo on it (looking at the sources it should register the
> > > stateful snippet in the session). I've tried extending StatefulSnippet
> but
> > > it doesn't work for me. A hashed value is added to the redirect url
> which
> > > should map to the stateful snippet but the state is lost. I don't
> understand
> > > what i am doing wrong.
> >
> > > The simplified example of the code:
> >
> > > class MySnippet extend StatefulSnippet {
> > >   private var myValues: List[String] = List()
> >
> > >   val dispatch.. = {
> > >     case "save" => save_
> > >     case "show" => show _
> > >   }
> >
> > >   def show = {
> > >     myValues.foreach(Log.info(_)) //nothing here
> > >   }
> >
> > >   def save(xhtml: NodeSeq) : NodeSeq = {
> > >     def processForm = {
> > >       myValues.foreach(Log.info(_)) //submitted values are printed out
> > >       this.redirectTo("/show")
> > >     }
> >
> > Unless I'm missing something I do not this your values can be shown in
> > the new template. There is an overloaded S.redirectTo where you can
> > specify a function to be executed when the redirect is receives. Hence
> > here you can pass state. See
> >
> > def redirectTo[T](where: String, func: () => Unit): T
> >
> > In this function you could probably set some RequestVar holding your
> > needed state and when you snippet is rendered in the /show page you
> > just read the info from these RequestVar(s).
>
>
> To me more specific I was referring to something like:
>
>
> def myFunc(state: List[String])() { // a curried function
>
>   // here set the state on a RequestVar
>
> }
>
> from you submit function call:
>
> S.redirectTo("/show", myFunc(myValues) _)
>
>
> >
> >
> >
> > >     bind("render", xhtml,
> > >        ...... //render textboxes and register functions which add
> values to
> > > the myValues list
> > >        "submit" -> submit("Submit", processForm)
> > >   }
> >
> > > }
> >
> > > Thanks,
> > > Sergey
> > > P.S. The more i learn about Lift the more i like it. Thank you David
> and all
> > > lift committers!!!
> >
>

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