From: Eric Schwartz <emschwar@...>
Date: 2004-06-22T06:33:14+09:00
Subject: Enabling/disabling HTML with Amrita

I know with Amrita, if you pass nil as the data for a template
element, it doesn't get printed.  What I'm interested in is in
conditional container elements, such as <span> or <tr>, that print
their templated content when enabled.  See my test below:

emschwar@wilson:/tmp$ cat bah.templ
<table>
<tr><td id="cell1" />/></tr>
<tr id="row2"><td id="cell2" /></tr>
</table>

emschwar@wilson:/tmp$ cat ./amrita-test
#!/usr/bin/ruby
require 'amrita/template'

data1 = { :cell1 => "Cell 1" }

data2 = { :cell1 => "Cell 1",
          :row2  => "testing",
          :cell2 => "Cell 2" }

template = Amrita::TemplateFile.new("bah.templ")

template.expand(STDOUT, data1)
puts
template.expand(STDOUT, data2)

emschwar@wilson:/tmp$ ./amrita-test
<table>
<tr><td>Cell 1</td></tr>

</table>

<table>
<tr><td>Cell 1</td></tr>
<tr>testing</tr>
</table>
emschwar@wilson:/tmp$

Obviously, what I'm looking for in the second case is something like
<table>
<tr><td>Cell 1</td></tr>
<tr><td>Cell 2</td></tr>
</table>

I've been resorting to templating tricks like

<tr><td id="cell2" /></tr>

but that leaves an empty table row in there when there's no 'cell2',
which is not always what I want.  In the particular application I'm
using it for, it's okay, but it's kinda ugly.  How can I get there
from here?  Or can I?

-=Eric
-- 
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