Test the value of an XML node

rubyonrails-talk
1

I'm accessing a log in scheme from a web service and I want to be able to check the returned values in order provide some form of validation and error checking.

For example, when I submit the log in request, the service returns an XML String something like the following…

<?xml version="1.0" encoding="utf-16"?> <Result>   <Code>InvalidPassword</Code>   <Success>false</Success>   <Message>Invalid password</Message> </Result>

I'd like to be able to display the value [text] of Message as well as re-direct users if Success is "false" for example…

def login #get the value of Code and test if @code = 'False'       flash[:notice] = "Something failed..."       redirect_to :action => "index"        else          @message = 'Welecome'        end   end

2

I'm accessing a log in scheme from a web service and I want to be able to check the returned values in order provide some form of validation and error checking.

For example, when I submit the log in request, the service returns an XML String something like the following…

Bung it through a xml parser. REXML comes with ruby (there are faster things based on native libraries but if you're only looking at small documents like that it won't make any difference). Off the top of my head the code would look something like require 'rexml/document' ...

document = REXML::Document.new(my_xml_string) root = document.root message = root.elements[1, 'Message'].text

Fred