Re: [cgiapp] Returning XML output for AJAX

[Rhesa Rozendaal <suppressed>]

Bruce McKenzie wrote:
> OK, so I'm way behind the rest of the world when it comes to XML -- but 
> I am using CGI::Application -- so how hard could it be to catch up? :-)
>
> What I want to do is return XML (as an Ajax response) to the jQuery 
> Interface library Autocomplete plugin.
>
> In the plugin documentation example, data is provided by an .asp 
> document that looks like this:
>
> <?xml version="1.0"?>
> <ajaxresponse>
>    <item>
>      <text><![CDATA[text to display]]></text>
>      <value><![CDATA[value to fill]]></value>
>    </item>
> </ajaxresponse>
>
> Of the modules on CPAN that could produce this XML structure, which 
> would be *easiest* to use? Do I need to change the headers of the 
> CGI::Application response?

IMHO, that would be XML::Simple. It's a bit tricky to force XML::Simple to 
generate the exact same output, but it depends a lot on the context if you 
need it.

Here's some sample code to demonstrate:

#!/usr/bin/perl

use XML::Simple;

my $item = {
    text  => 'text to display',
    value => 'value to fill',
};

print XMLout( { ajaxresponse => { item => $item } }, noattr => 1, keeproot => 
1, xmldecl => 1 );

__END__
<?xml version='1.0' standalone='yes'?>
<ajaxresponse>
  <item>
    <text>text to display</text>
    <value>value to fill</value>
  </item>
</ajaxresponse>


For bigger XML snippets where I need a very specific layout, I tend to use 
HTML::Template templates instead. But most of the time, XML::Simple manages to 
do the job just fine.

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