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Posted to users@tapestry.apache.org by gladstone <es...@onecornerstone.com> on 2009/02/19 21:28:16 UTC

Dependent implemented with @OnEvent mixin + AjaxFormLoop

Posted by gladstone <es...@onecornerstone.com>.

Thanks Thiago, you are very helpful.

I tried a cheaper fix, but hacking the T5COnEvent.js file and creating my
own version of T5 Components JAR.  All I did was add a second parameter to
the JavaScript method that is the clientId (elementId).  This only allows my
dependent select solution to work inside an AjaxFormLoop.

I have another problem now though as I can not seem to be able to have two
AjaxFormLoop inside a form.  There is only one onAddRow/onRemoveRow method
so I can't distinguish which loop is firing the events.  &#*$&^@#&^@*




Thiago H. de Paula Figueiredo wrote:
> 
> Em Thu, 19 Feb 2009 17:44:54 -0300, Elmer Smith  
> <es...@venterraliving.com> escreveu:
> 
>> I first thought of somehow using getClientId().  The problem is that I
>> need the id in the JavaScript function (the onCompleteCallback one) to
>> then try and determine which select put values into.
> 
> I have also needed to know what component fired an event, so I filed  
> https://issues.apache.org/jira/browse/TAP5-146. You can vote there. The  
> most votes, the most likely to beee solved. :)
> 
> Another solution, maybe more complicated, would be to write the Javascript  
> yourself instead of using the @OnEvent mixin. Using Prototype, that  
> wouldn't be hard. Your JS code would request an URL generated by  
> ComponentResources.createEventLink(). Maybe you'll need to add the client  
> id to this URL, maybe not. Your event handler method would receive the id  
> through its parameter. I don't know if this works, but that's what I would  
> try to do. ;)
> 
> -- 
> Thiago H. de Paula Figueiredo
> Independent Java consultant, developer, and instructor
> http://www.arsmachina.com.br/thiago
> 
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Re: Dependent implemented with @OnEvent mixin + AjaxFormLoop

Posted by Elmer Smith <es...@venterraliving.com>.

I first thought of somehow using getClientId().  The problem is that I
need the id in the JavaScript function (the onCompleteCallback one) to
then try and determine which select put values into.

If I could call getClientId() when in the Java @OnEvent method, then I
could sneak it in as the first entry in my JSONArray.  The problem there
is, what could I base the getClientId() method off of?



-----Original Message-----
From: Thiago H. de Paula Figueiredo [mailto:thiagohp@gmail.com] 
Sent: Thursday, February 19, 2009 3:33 PM
To: Tapestry users
Subject: Re: Dependent <select> implemented with @OnEvent mixin +
AjaxFormLoop

Em Thu, 19 Feb 2009 17:28:16 -0300, gladstone
<es...@onecornerstone.com>  
escreveu:

> Once this is placed
> inside an AjaxFormLoop, the client id for the select elements are made
> unique by having a unique number appended to it.  Inside the
JavaScript
> function, it can no longer find the select element to update as it  
> doesn't know which one (what id) to update.

Does it help to use Select's (and any other AbstractField class)  
getClientId() method?

-- 
Thiago H. de Paula Figueiredo
Independent Java consultant, developer, and instructor
http://www.arsmachina.com.br/thiago

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