How to get the contents of an attachment (e.g. xml file)?

Hello,

I'm using orbeon 4.4. I'd like to extend the usability of file attachment
control (attachment.xbl). If I upload a xml file, I also want to have an
output field under the "download" symbol to show the contents of this xml
file. How could I make it work?

Thanks,
zeder127

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Hi zeder127,

I'm not sure you can quite do all of this just with XForms, as you'd need a function to check that the uploaded file is valid XML. The function doc() will read and parse the file, but will bomb if not valid. Also, displaying the XML in a "nice" way isn't trivial, and to do it properly you'd most likely want to use a JavaScript library doing some indenting and formatting.

I think I'd use xxf:doc-base64-available() to check if the file exists, if it does read it with xxf:doc-base64() and place its content in a HTML element, and do the rest (base64 to text aka XML parsing, and indenting/formatting in JavaScript).

http://wiki.orbeon.com/forms/doc/developer-guide/xforms-xpath-functions#TOC-xxf:doc-base64-

Alex

Hi Alex, thanks for your reply. I will try it.