From: Peter Hickman <peter@...>
Date: 2006-06-08T20:34:00+09:00
Subject: Problem constructing a url with uri

I have this, example, code:

require 'uri'

a = Hash.new
a["fred"] = 42
a["tom"] = "dick"

x = URI::HTTP.build( {:host => "fred.com", :query => a} )
puts x.to_s

Which I was expecting to create a url like 
http://fred.com/?fred=42&tom=dick but all I get is

/usr/lib/ruby/1.8/uri/generic.rb:508:in `=~': can't convert Hash into 
String (TypeError)
        from /usr/lib/ruby/1.8/uri/generic.rb:508:in `check_query'
        from /usr/lib/ruby/1.8/uri/generic.rb:523:in `query='
        from /usr/lib/ruby/1.8/uri/generic.rb:178:in `initialize'
        from /usr/lib/ruby/1.8/uri/http.rb:46:in `initialize'
        from /usr/lib/ruby/1.8/uri/generic.rb:125:in `new'
        from /usr/lib/ruby/1.8/uri/generic.rb:125:in `build'
        from /usr/lib/ruby/1.8/uri/http.rb:36:in `build'
        from x:7

Am I correct in my assumption that :query will take a hash and the 
correct arguments or do I need to create my own function to do the 
conversion?