I have a HTTPService in my Flex 4 app that I call like this:

getUserDetails.send(userLookup.text);

In my Ruby on Rails method that this is linked to, how do I refer to the userLookup.text parameter? The method is as follows, with XXX as the placeholder:

def getDetails
  @user = User.first (:conditions => "username = XXX")
  render :xml => @user
end

UPDATE:

Is this way correct? I found it here. I'm still getting errors but it might be because of something else.

def getDetails(lookupUsername)
  @user = User.first (:conditions => "username = '#{lookupUsername}")
  render :xml => @user
end

Thanks for reading!