HowTo break out of a Tapestry loop?

[dp <dp...@gmail.com>]

So, i am trying to break out of tapestry loop here.

This is my -more or less- simplified scenario:

<ul>
    <t:loop source="firstSource" value="firstValue">
            <li>
                <t:loop source="firstValue" value="secondValue">
                    <p>${secondValue}</p>
                </t:loop>
                <t:loop source="secondSource" value="thirdValue">
                    <p>${thirdValue}</p>
                </t:loop>
            </li>
    </t:loop>
</ul>

What I do not want to have is: Tapestry loops through all entries in
firstValue - then loops through all entries in secondSource. I do not want
to iterate through secondSource inside the loop of fristValue as this would
iterate through all entries in secondSource - and I just want to do 1
iteration at a time.

What I want to have is: Tapestry enters the loop for firstValue and does
some printing or whatever, then breaks after the first iteration and jumps
into secondSource to do the first iteration . After it has finished it jumps
back to firstValue and repeats these steps. This is what in Java the
"break;" would do.

I did not find a clue in the Tapestry documentation on how to do this, nor
in the forums.

But it has to be possible in some way. I can not imagine I am the only one
trying to do this.


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Re: HowTo break out of a Tapestry loop?

[dp <dp...@gmail.com>]

Thanks, I have done it with some conditional testing for now but am pretty
sure that for a long term solution creating a new data structure with all
necessary fields would be easier to manage.

Please also refer to the stackoverflow question:
http://stackoverflow.com/questions/10916019/howto-break-out-of-a-tapestry-loop

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Re: HowTo break out of a Tapestry loop?

[Thiago H de Paula Figueiredo <th...@gmail.com>]

On Wed, 06 Jun 2012 11:38:21 -0300, Steve Eynon  
<st...@alienfactory.co.uk> wrote:

> There is no 'break' in the loop component, but you can wrap your inner
> loops in a conditional <t:if test=".."> component.

Or pass the Loop component a list containing just the elements you do want  
to be rendered.

-- 
Thiago H. de Paula Figueiredo

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Re: HowTo break out of a Tapestry loop?

[Steve Eynon <st...@alienfactory.co.uk>]

There is no 'break' in the loop component, but you can wrap your inner
loops in a conditional <t:if test=".."> component.

Steve.

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