Try (without the = sign):

LiftRules.exceptionHandler.prepend {
   case (mode, state, ex) => RedirectResponse("/error")
}

--j

On Mon, Feb 9, 2009 at 10:47 PM, Oliver <ola...@gmail.com> wrote:

>
> If I try to use the following, I get a reassignment to Val error - any
> ideas?
>
> LiftRules.exceptionHandler.prepend = {
>    case (mode, state, ex) => RedirectResponse("/error")
> }
>
> On Wed, Dec 24, 2008 at 5:41 AM, Marius <marius.dan...@gmail.com> wrote:
> >
> > Folks,
> >
> > I just committed a couple of changes that may impact your application.
> >
> > 1. LiftRules.logAndReturnExceptionToBrowser and
> > LiftRules.browserResponseToException have been removed. These were two
> > different variables that did pretty much the same thing in fact the
> > first ultimately called the former. These have been replaced with:
> >
> >
> > var exceptionHandler = RulesSeq[ExceptionHandlerPF]
> >
> > having
> >
> > type ExceptionHandlerPF = PartialFunction[(Props.RunModes.Value, Req,
> > Throwable), LiftResponse]
> >
> > By default a partial function is appended and it is the same code that
> > used to be for LiftRules.browserResponseToException.
> >
> > So up until now probably your application was using something like:
> >
> > LiftRules.logAndReturnExceptionToBrowser = {
> >        case (state, ex) => RedirectResponse("/error")
> > }
> >
> > now this turns into:
> >
> > LiftRules.exceptionHandler.prepend = {
> >    case (mode, state, ex) => RedirectResponse("/error")
> > }
> >
> >
> > 2. More unification of Ajax notices with "static" notices. So far to
> > apply styling information (css classes etc) to Ajax notices we used
> > three LiftRules variables:
> >
> >  var ajaxNoticeMeta: Can[AjaxMessageMeta]
> >  var ajaxWarningMeta: Can[AjaxMessageMeta]
> >  var ajaxErrorMeta: Can[AjaxMessageMeta]
> >
> > the motivation was that in order for Lift to send down the correct
> > style information for Ajax/Comet notices it needed to maintain this
> > information. Now I finally found time to do it. The above variables
> > are gone. Instead the same styling information that you use for
> > lift:msgs and lift:msg snippets will be applied for AJax and Comet
> > notices. The styling information is captured when these snippets are
> > executed and used whenever you're using notices for AJax response or
> > from a Comet actor.
> >
> >
> > Br's,
> > Marius
> > >
> >
>
> >
>

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