Let me preface this by saying that I have almost zero
experience with Velocity so I don't know if I found a
real bug or just a problem in my usage.
I am trying to display some portlets using the RowController.
I set the column sizes to be 30% and 70% but it was not
setting the widths in the output table. I added some debug
comments to the WEB-INF/templates/vm/controllers/html/row.vm
as follows:
<!-- Begin ROW Controller -->
<table border="0" cellpadding="2" cellspacing="0" width="100%">
<tr>
#foreach ( $portlet in $portlets )
<!-- velocityCount = $velocityCount -->
<!-- sizes.size() = $sizes.size() -->
#if ($sizes.size() >= $velocityCount)
<!-- calc = ( $velocityCount-1 ) -->
<!-- width from calc = $!sizes.elementAt($velocityCount-1) -->
#set ($width = $!sizes.elementAt($velocityCount-1))
#end
<td valign="top" width="$!width">
$!portlet.getContent($data)
</td>
#end
</tr>
</table>
<!-- End ROW Controller -->
When I look at my displayed source for the page the debug
comments are
<!-- velocityCount = 1 -->
<!-- sizes.size() = 2 -->
<!-- calc = ( $velocityCount-1 ) -->
<!-- width from calc = -->
and then
<!-- velocityCount = 2 -->
<!-- sizes.size() = 2 -->
<!-- calc = ( $velocityCount-1 ) -->
<!-- width from calc = -->
It looked like the Velocity code was not treating
the $velocityCount-1 as a number. I added an
intermeditate calculation as follows
#if ($sizes.size() >= $velocityCount)
#set ($idx = $velocityCount - 1 )
#set ($width = $!sizes.elementAt($idx))
#end
And this worked. My question is this, is this a
real bug or just some ignorance of Velocity on my
part? And if it is a bug do you want me to submit
a patch?
-- Steve Davis
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