Re: AW: Component event handlers

Wed, 19 Mar 2008 11:44:40 -0700

It is indeed an Ajax request, the t:zone XML attribute is there, so there is no problem with that.

>From what I see, T5 sometimes maps a TML

<t:zone t:id="someZone"></t:zone>

as (seen by inspecting the DOM)

<div id="someZone:118c853e048" class="t-zone"/>

or as

<div id="someZone" class="t-zone"/>

And in the 1st case, clicking on the link refresh the page, with an error message.
When I try to narrow things, it seems to me that when you refresh a Zone A that contains another zone B, then the id of B is added this hashCode like stuff.

I hope Howard could enlighten us on that point ?

Thank you,

José



Ted Steen a écrit : 
The error you get is probably due to the fact that it is not an ajax request.
you can only return blocks from event methods when making ajax requests.

you have to make the request with Ajax.request(...) or by using
tapestry default ajax mechanism. (<t:form t:zone="....">...)

hope it helps!

2008/3/19, Martin Kersten <[EMAIL PROTECTED]>:
  
I see. When I read the AJAX documentation correctly your code snippet should be on the save side.
 Sorry but I can't see anything wrong.


 Cheers,

 Martin (Kersten)


 ________________________________

 Von: José Paumard [mailto:[EMAIL PROTECTED]]

Gesendet: Mittwoch, 19. März 2008 17:33
 An: Tapestry users
 Betreff: Re: AW: Component event handlers



 Code snippets are very basic :

 In the tml :

 <t:eventLink t:event="someEvent" t:zone="someZone">click me</t:eventLink>

 <t:block t:id="someBlock">
    <t:some.component/>
 </t:block>


 In the class :

    @Inject
    private Block someBlock ;

    @OnEvent(value="someEvent")
    Block clickMe() {
        return someBlock ;
    }

 What I would expect is to see the content of the block in the div "someZone", but I have an exception instead.

 José

 Martin Kersten a écrit :

        Sounds like onActivate? What do you try to do? Can you give us the exact case (event type). Code Snippet?

        ________________________________

        Von: José Paumard [mailto:[EMAIL PROTECTED]]
        Gesendet: Mittwoch, 19. März 2008 17:18
        An: Tapestry users
        Betreff: Re: Component event handlers


        Hello Chris,

        Thank you for your fast answer.

        It is Block (not BlockImpl, this class is in the internals of T5, so using it is not recommended). I switched to Object, but it didnt change anything. Here is the exact error message :

        A component event handler method returned the value [EMAIL PROTECTED] Return type org.apache.tapestry.internal.structure.BlockImpl can not be handled. Configured return types are java.lang.Class, java.lang.String, java.net.URL, org.apache.tapestry.Link, org.apache.tapestry.StreamResponse, org.apache.tapestry.runtime.Component.

        Chris Lewis a écrit :

                What is the declared return type of your method? It should be Object,
                and not BlockImpl.

                José Paumard wrote:


                        Hi all,

                        Everytime I try to return an injected block in an event handler
                        method, I get an error message, telling me that BlockImpl is not a
                        valid returned value. From the nightly generated docs, this is
                        supposed to work. Has anyone experienced this too ?

                        Thank you,

                        José
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