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Technical Overview
  internal package Foswiki::UI::Upload  
UI delegate for attachment management functions
 StaticMethod upload( $session ) 
upload command handler.
This method is designed to be
invoked via the 
UI::run method.
CGI parameters, passed in $query:
Does the work of uploading an attachment to a topic.
 
-  
hidefile - if defined, will not show file in attachment table
  -  
filepath -
  -  
filename -
  -  
filecomment - comment to associate with file in attachment table
  -  
createlink - if defined, will create a link to file at end of topic
  -  
changeproperties -
  -  
redirectto - URL to redirect to after upload. {AllowRedirectUrl}     must be enabled in configure. The parameter value can be a     TopicName, a Web.TopicName, or a URL. Redirect to a URL only works     if it is enabled in configure, and is ignored if noredirect is     specified.
  -  
noredirect - Normally it will redirect to 'view' when the upload is     complete, but also designed to be useable for REST-style calling using     the 'noredirect' parameter. If this parameter is set it will return an     appropriate HTTP status code and print a message to STDOUT, starting     with 'OK' on success and 'ERROR' on failure.