From: Holger Biebinger <holger.biebinger@...>
Date: 2006-08-07T23:30:33+09:00
Subject: Strange NoMethodError

Hi,
In the following test script (similar to pickaxe p. 700 ):

require 'net/http'
require 'uri'

def fetch (uri_str, limit=10)
     fail 'http redirect limit exceeded' if limit.zero?
     response = Net::HTTP.get_response(URI.parse(uri_str))
     case response
     when Net::HTTPSuccess
       response
     when Net::HTTPRedirection
       fetch(response['location'], limit-1)
     else
       response.error!
     end
end


fetch('heise.de');


with
ruby test.rb
I get the result:

Exception `NoMethodError' at /usr/local/lib/ruby/1.8/net/http.rb:380  
- undefined method `request_uri' for #<URI::Generic:0x188f84  
URL:heise.de>
/usr/local/lib/ruby/1.8/net/http.rb:380:in `get_response': undefined  
method `request_uri' for #<URI::Generic:0x188f84 URL:heise.de>  
(NoMethodError)
         from /usr/local/lib/ruby/1.8/net/http.rb:545:in `start'
         from /usr/local/lib/ruby/1.8/net/http.rb:379:in `get_response'
         from test.rb:6:in `fetch'
         from test.rb:18


I had a look at /usr/local/lib/ruby/1.8/uri/http.rb
The function was defined there:
#
     # == Description
     #
     # Returns: path + '?' + query
     #
     def request_uri
       r = path_query
       if r[0] != ?/
         r = '/' + r
       end

       r
     end

It should be a function of the standard libray. I am quite new to  
ruby. How can I debug this problem? Or any hints what I can do?

Thanks in advance for your help,


Holger