Page nur fuer den angemeldeten User erreichbar ? = page only for users they
have logged in
2008/2/11, Dapeng <[EMAIL PROTECTED]>:
>
> neat
>
>
>
> except there are some comments that i can't read ...
>
> =)
>
> Sven Homburg wrote:
> > i think this is they way you need:
> >
> > @InjectPage(value = "Login")
> > private ILoginPage _loginPage;
> >
> > /**
> > * check for user is authentificated if requested page implements
> > IRestrictedPage.
> > *
> > * @return
> > */
> > @OnEvent(value = "activate")
> > Object checkPageAccessPermission()
> > {
> > //
> > // Page nur fuer den angemeldeten User erreichbar ?
> > //
> > if (this instanceof IRestrictedPage)
> > {
> > if (!isLoggedIn())
> > return _loginPage;
> > }
> >
> > return null;
> > }
> >
> >
> > 2008/2/11, Travis McLeskey <[EMAIL PROTECTED]>:
> >
> >> Unfortunately, for me, returning false produced this nasty-looking
> >> stack trace:
> >>
> >> [ERROR]
> >> org.apache.tapestry.internal.services.DefaultRequestExceptionHandler
> >> Processing of request failed with uncaught exception: Page Start did
> >> not generate any markup when rendered. This could be because its
> >> template file could not be located, or because a render phase method
> >> in the page prevented rendering.
> >> java.lang.RuntimeException: Page Start did not generate any markup
> >> when rendered. This could be because its template file could not be
> >> located, or because a render phase method in the page prevented
> >> rendering.
> >> at
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .services
> >> .PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java
> :58)
> >> at
> >> $
> >> PageMarkupRenderer_11806dbfeb2
> >> .renderPageMarkup($PageMarkupRenderer_11806dbfeb2.java)
> >> at
> >> org
> >> .apache
> >> .tapestry
> >> .internal
> >> .services
> >> .PageResponseRendererImpl
> >> .renderPageResponse(PageResponseRendererImpl.java:56)
> >> .
> >> .
> >> .
> >>
> >> I don't understand, but I think I'll just return void from the method
> >> instead.
> >>
> >> Travis
> >>
> >>
> >> On Feb 10, 2008, at 9:54 PM, Dapeng wrote:
> >>
> >>
> >>> besides the similarity
> >>>
> >>> i guess ur beginRender should return false for redirect
> >>>
> >>> refering to the state diagram
> >>>
> >>> http://tapestry.apache.org/tapestry5/tapestry-core/guide/
> >>> rendering.html
> >>>
> >>>
> >>> Travis McLeskey wrote:
> >>>
> >>>> Ah, thanks, that works for me. Here's what I did:
> >>>>
> >>>> @Inject
> >>>> private Response response;
> >>>>
> >>>> @Inject
> >>>> private LinkFactory linkFactory;
> >>>>
> >>>> public Object beginRender() throws IOException {
> >>>> if( isLoginNeeded() )
> >>>>
> >>>> response.sendRedirect( linkFactory.createPageLink("Login", true) );
> >>>> return true;
> >>>> }
> >>>>
> >>>> I wish there were a cleaner way, but that'll do.
> >>>>
> >>>> Thanks,
> >>>> Travis
> >>>>
> >>>>
> >>>>
> >>>> On Feb 10, 2008, at 9:06 PM, Dapeng wrote:
> >>>>
> >>>>
> >>>>> what i am doing is
> >>>>>
> >>>>> @Inject
> >>>>> private Response response;
> >>>>>
> >>>>> boolean beginRender(){
> >>>>>
> >>>>> if( isRedirectNeeded() ) {
> >>>>> try { response.sendRedirect("") } catch (Exception e) {}
> >>>>> return false;
> >>>>> }
> >>>>>
> >>>>> }
> >>>>>
> >>>>>
> >>>>>
> >>>>> Travis McLeskey wrote:
> >>>>>
> >>>>>> In a page, you can listen for the "activate" event and, for
> >>>>>> example, if the user doesn't have permission to view that page,
> >>>>>> you can return a value (Page, Class, String, etc.) that triggers
> >>>>>> a redirect to another page.
> >>>>>>
> >>>>>> Is it possible to do the same when a component is loading/
> >>>>>> rendering? Components don't receive the "activate" event, and I
> >>>>>> haven't had any luck returning a page object from setupRender()
> >>>>>> and beginRender().
> >>>>>>
> >>>>>> Thanks,
> >>>>>> Travis
> >>>>>>
> >>>>>>
> >>>>>>
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> >>>>>>
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> >>>>
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> >>>
> >>>
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> >>
> >>
> >>
> >
> >
> >
>
>
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>
--
with regards
Sven Homburg
