Hi Barry
I've been using a different workaround for this and maybe it could help you.
You can listen for the DECORATE_PAGE_RENDER_LINK and then "decorate" the
link as you want.
Add something like this to your page.
@OnEvent(EventConstants.DECORATE_PAGE_RENDER_LINK)
void decoratePageRenderLink(Link link, PageRenderRequestParameters
parameters)
{
if (parameters.getLogicalPageName().equals("YOUR_LOGICAL_PAGE_NAME")) {
for (String name : link.getParameterNames())
{
link.removeParameter(name);
}
}
}
Cheers.
Alejandro.
On Thu, May 9, 2013 at 2:44 PM, Barry Books <trs...@gmail.com> wrote:
> I am using @ActivationRequestParameter and perhaps this is feature under
> some circumstances but currently it seems like a bug to me.
>
> In this case I have a menu item called 'All Prints' that goes to a page
> that might set ARP fields from a search. I'd like the menu link to always
> go to the page without any url parameters so that it will show All Prints.
> If I just had a simple PageLink I could just set parameters="{'tag'='All'}"
> but the menu links come from a database so they can be dynamically added.
> I did get it to work as I wanted by adding a context of 'All' the pagelink
> and then set tag to null in begin render. The only think I don't like about
> that is the URL ends up being:
>
> /studio/work/All?tag=Paris (best case would be /studio/work?tag=All which I
> don't really care for either)
>
> I suspect I'll really fix this by hardcoding a URL in the database and just
> using <a href="/studio/work/"> but that seems wrong.
>
> I guess it comes down to what PageLink should do. I view it as a way to go
> to some arbitrary page with a set of arguments I specify. I'm OK with
> leaving context and parameters empty and Tapestry providing defaults but it
> seems like if I supply a value it should use that and only that. I suppose
> there may be other cases where this functionality is useful but I can't
> think of any off hand. Perhaps if parameters="null" or parameters="{}"
> would just remove all parameters that might be OK and would solve the
> common case of:
>
> 1. A menu item linking to a page that shows a bunch of things
> 2. The page has search parameters to narrow the list and uses ARP to store
> them
>
> The menu link does not need to know (and should not know) what the possible
> set of search criteria is, it just wants to turn them all off. The search
> page can handle them using EventLink to clear individual ones.
>
>
>
> On Wed, May 8, 2013 at 7:06 PM, Howard Lewis Ship <hls...@gmail.com>
> wrote:
>
> > I suspect you are using @ActivationRequestParameter annotatations and
> that
> > is the source of your "sticky" query parameters.
> >
> > It may be a bug that you explicitly supply an empt parameters map to the
> > PageLink and it still adds the ARP in, but that is likely a feature.
> >
> > To accomplish what you want, you may need to set the ARP fields to null
> > inside beginRender().
> >
> >
> >
> > On Wed, May 8, 2013 at 6:02 AM, Barry Books <trs...@gmail.com> wrote:
> >
> > > I've got a menu item generated from a database with a pagelink like
> this
> > >
> > > <t:pagelink page="prop:drop.page" context="dropContext"
> > > style="${drop.style}"
> > > >${drop.label}</t:pagelink>
> > >
> > >
> > > I've added a search function to one of the linked pages that adds
> > > parameters to the URL with
> > >
> > >
> > > <t:pagelink ... parameters="search">Page</t:pagelink>
> > >
> > >
> > > I'd like to make the menu item clear the search so I tried this:
> > >
> > >
> > > <t:pagelink page="prop:drop.page" context="dropContext" style="${drop
> > > .style}" parameters="{}">${drop.label}</t:pagelink>
> > >
> > >
> > > but it does not work. It seems Tapestry is clever enough to always add
> my
> > > search criteria to the parameter map. This would be easy enough to fix
> if
> > > my menu was not driven from a database but I don't see an easy to make
> my
> > > generic menu know how to fix this.
> > >
> > >
> > > It would seem useful to be able to say <t:pagelink ...
> > > parameters="null">Page</t:pagelink> but parameters cannot be set to
> null.
> > >
> > >
> > > Any suggestions?
> > >
> >
> >
> >
> > --
> > Howard M. Lewis Ship
> >
> > Creator of Apache Tapestry
> >
> > The source for Tapestry training, mentoring and support. Contact me to
> > learn how I can get you up and productive in Tapestry fast!
> >
> > (971) 678-5210
> > http://howardlewisship.com
> >
>
